route.c revision 1.99
1 /* $NetBSD: route.c,v 1.99 2006/08/06 17:47:17 dyoung 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 1.99 2006/08/06 17:47:17 dyoung 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 Sflag = 1; 177 break; 178 case 's': 179 shortoutput = 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(EXIT_FAILURE, "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 } 292 } else 293 bad: usage(*argv); 294 } 295 mib[0] = CTL_NET; 296 mib[1] = PF_ROUTE; 297 mib[2] = 0; /* protocol */ 298 mib[3] = 0; /* wildcard address family */ 299 mib[4] = NET_RT_DUMP; 300 mib[5] = 0; /* no flags */ 301 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 302 err(EXIT_FAILURE, "route-sysctl-estimate"); 303 buf = lim = NULL; 304 if (needed) { 305 if ((buf = malloc(needed)) == NULL) 306 err(EXIT_FAILURE, "malloc"); 307 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 308 err(EXIT_FAILURE, "actual retrieval of routing table"); 309 lim = buf + needed; 310 } 311 if (verbose) { 312 (void)printf("Examining routing table from sysctl\n"); 313 if (af) 314 printf("(address family %s)\n", (*argv + 1)); 315 } 316 if (needed == 0) 317 return 0; 318 seqno = 0; /* ??? */ 319 for (next = buf; next < lim; next += rtm->rtm_msglen) { 320 rtm = (struct rt_msghdr *)next; 321 if (verbose) 322 print_rtmsg(rtm, rtm->rtm_msglen); 323 if (!(rtm->rtm_flags & (RTF_GATEWAY | RTF_STATIC | 324 RTF_LLINFO)) && !doall) 325 continue; 326 if (af) { 327 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 328 329 if (sa->sa_family != af) 330 continue; 331 } 332 if (debugonly) 333 continue; 334 rtm->rtm_type = RTM_DELETE; 335 rtm->rtm_seq = seqno; 336 if ((rlen = write(sock, next, rtm->rtm_msglen)) < 0) { 337 warnx("writing to routing socket: %s", 338 route_strerror(errno)); 339 return 1; 340 } 341 if (rlen < (int)rtm->rtm_msglen) { 342 warnx("write to routing socket, got %d for rlen", rlen); 343 return 1; 344 } 345 seqno++; 346 if (qflag) 347 continue; 348 if (verbose) 349 print_rtmsg(rtm, rlen); 350 else { 351 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 352 (void)printf("%-20.20s ", 353 routename(sa, NULL, rtm->rtm_flags)); 354 sa = (struct sockaddr *)(ROUNDUP(sa->sa_len) + (char *)sa); 355 (void)printf("%-20.20s ", 356 routename(sa, NULL, RTF_HOST)); 357 (void)printf("done\n"); 358 } 359 } 360 free(buf); 361 return 0; 362 } 363 364 365 static char hexlist[] = "0123456789abcdef"; 366 367 static char * 368 any_ntoa(const struct sockaddr *sa) 369 { 370 static char obuf[3 * 256]; 371 const char *in; 372 char *out; 373 int len; 374 375 #if __GNUC__ > 2 376 len = sa->sa_len - offsetof(struct sockaddr, sa_data); 377 #else 378 len = sa->sa_len - ((struct sockaddr*)&sa->sa_data - sa); 379 #endif 380 in = sa->sa_data; 381 out = obuf; 382 383 do { 384 *out++ = hexlist[(*in >> 4) & 15]; 385 *out++ = hexlist[(*in++) & 15]; 386 *out++ = '.'; 387 } while (--len > 0); 388 out[-1] = '\0'; 389 return obuf; 390 } 391 392 int 393 netmask_length(struct sockaddr *nm, int family) 394 { 395 static int 396 /* number of bits in a nibble */ 397 _t[] = { 0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4 }, 398 /* good nibbles are 1111, 1110, 1100, 1000, 0000 */ 399 _g[] = { 1,0,0,0,0,0,0,0,1,0,0,0,1,0,1,1 }; 400 int mask, good, zeroes, maskbytes, bit, i; 401 unsigned char *maskdata; 402 403 if (nm == NULL) 404 return 0; 405 406 mask = 0; 407 good = 1; 408 zeroes = 0; 409 410 switch (family) { 411 case AF_INET: { 412 struct sockaddr_in *nsin = (struct sockaddr_in *)nm; 413 maskdata = (unsigned char *)&nsin->sin_addr; 414 maskbytes = nsin->sin_len - 415 ((caddr_t)&nsin->sin_addr - (caddr_t)nsin); 416 break; 417 } 418 case AF_INET6: { 419 struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)nm; 420 maskdata = (unsigned char *)&sin6->sin6_addr; 421 maskbytes = sin6->sin6_len - 422 ((caddr_t)&sin6->sin6_addr - (caddr_t)sin6); 423 break; 424 } 425 default: 426 return 0; 427 } 428 429 /* 430 * Count the bits in the nibbles of the mask, and marking the 431 * netmask as not good (or at best, non-standard and very 432 * discouraged, in the case of AF_INET) if we find either of 433 * a nibble with non-contiguous bits, or a non-zero nibble 434 * after we've found a zero nibble. 435 */ 436 for (i = 0; i < maskbytes; i++) { 437 /* high nibble */ 438 mask += bit = _t[maskdata[i] >> 4]; 439 good &= _g[maskdata[i] >> 4]; 440 if (zeroes && bit) 441 good = 0; 442 if (bit == 0) 443 zeroes = 1; 444 /* low nibble */ 445 mask += bit = _t[maskdata[i] & 0xf]; 446 good &= _g[maskdata[i] & 0xf]; 447 if (zeroes && bit) 448 good = 0; 449 if (bit == 0) 450 zeroes = 1; 451 } 452 453 /* 454 * Always return the number of bits found, but as a negative 455 * if the mask wasn't one we like. 456 */ 457 return good ? mask : -mask; 458 } 459 460 char * 461 netmask_string(struct sockaddr *mask, int len, int family) 462 { 463 static char smask[INET6_ADDRSTRLEN]; 464 struct sockaddr_in nsin; 465 struct sockaddr_in6 nsin6; 466 467 if (len >= 0) 468 snprintf(smask, sizeof(smask), "%d", len); 469 else { 470 switch (family) { 471 case AF_INET: 472 memset(&nsin, 0, sizeof(nsin)); 473 memcpy(&nsin, mask, mask->sa_len); 474 snprintf(smask, sizeof(smask), "%s", 475 inet_ntoa(nsin.sin_addr)); 476 break; 477 case AF_INET6: 478 memset(&nsin6, 0, sizeof(nsin6)); 479 memcpy(&nsin6, mask, mask->sa_len); 480 inet_ntop(family, &nsin6.sin6_addr, smask, 481 sizeof(smask)); 482 break; 483 default: 484 snprintf(smask, sizeof(smask), "%s", any_ntoa(mask)); 485 } 486 } 487 488 return smask; 489 } 490 491 const char * 492 routename(struct sockaddr *sa, struct sockaddr *nm, int flags) 493 { 494 const char *cp; 495 static char line[50]; 496 struct hostent *hp; 497 static char domain[MAXHOSTNAMELEN + 1]; 498 static int first = 1; 499 struct in_addr in; 500 int nml; 501 502 if ((flags & RTF_HOST) == 0) 503 return netname(sa, nm); 504 505 if (first) { 506 first = 0; 507 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 508 (cp = strchr(domain, '.'))) 509 (void)strlcpy(domain, cp + 1, sizeof(domain)); 510 else 511 domain[0] = 0; 512 } 513 514 if (sa->sa_len == 0) 515 strlcpy(line, "default", sizeof(line)); 516 else switch (sa->sa_family) { 517 518 case AF_INET: 519 in = ((struct sockaddr_in *)sa)->sin_addr; 520 nml = netmask_length(nm, AF_INET); 521 522 cp = 0; 523 if (in.s_addr == INADDR_ANY || sa->sa_len < 4) { 524 if (nml == 0) 525 cp = "default"; 526 else { 527 static char notdefault[sizeof(NOTDEFSTRING)]; 528 529 snprintf(notdefault, sizeof(notdefault), 530 "0.0.0.0/%s", 531 netmask_string(nm, nml, AF_INET)); 532 cp = notdefault; 533 } 534 } 535 if (cp == 0 && !nflag) { 536 hp = gethostbyaddr((char *)&in, sizeof(struct in_addr), 537 AF_INET); 538 if (hp) { 539 char *ccp; 540 if ((ccp = strchr(hp->h_name, '.')) && 541 !strcmp(ccp + 1, domain)) 542 *ccp = '\0'; 543 cp = hp->h_name; 544 } 545 } 546 if (cp) 547 (void)strlcpy(line, cp, sizeof(line)); 548 else 549 (void)strlcpy(line, inet_ntoa(in), sizeof(line)); 550 break; 551 552 case AF_LINK: 553 return (link_ntoa((struct sockaddr_dl *)sa)); 554 555 #ifdef INET6 556 case AF_INET6: 557 { 558 struct sockaddr_in6 sin6; 559 int niflags; 560 char nihost[NI_MAXHOST]; 561 562 niflags = 0; 563 if (nflag) 564 niflags |= NI_NUMERICHOST; 565 memset(&sin6, 0, sizeof(sin6)); 566 memcpy(&sin6, sa, sa->sa_len); 567 sin6.sin6_len = sizeof(struct sockaddr_in6); 568 sin6.sin6_family = AF_INET6; 569 #ifdef __KAME__ 570 if (sa->sa_len == sizeof(struct sockaddr_in6) && 571 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || 572 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && 573 sin6.sin6_scope_id == 0) { 574 sin6.sin6_scope_id = 575 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); 576 sin6.sin6_addr.s6_addr[2] = 0; 577 sin6.sin6_addr.s6_addr[3] = 0; 578 } 579 #endif 580 nml = netmask_length(nm, AF_INET6); 581 if (IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr)) { 582 if (nml == 0) 583 strlcpy(line, "::", sizeof(line)); 584 else 585 /* noncontiguous never happens in ipv6 */ 586 snprintf(line, sizeof(line), "::/%d", nml); 587 } 588 else if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 589 nihost, sizeof(nihost), NULL, 0, niflags) != 0) 590 strlcpy(line, "invalid", sizeof(line)); 591 else { 592 char *ccp; 593 if (!nflag && (ccp = strchr(nihost, '.')) && 594 strcmp(ccp + 1, domain) == 0) 595 *ccp = '\0'; 596 strlcpy(line, nihost, sizeof(line)); 597 } 598 break; 599 } 600 #endif 601 602 #ifndef SMALL 603 case AF_NS: 604 return (ns_print((struct sockaddr_ns *)sa)); 605 606 case AF_ISO: 607 (void)snprintf(line, sizeof line, "iso %s", 608 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 609 break; 610 611 case AF_APPLETALK: 612 (void)snprintf(line, sizeof(line), "atalk %d.%d", 613 ((struct sockaddr_at *)sa)->sat_addr.s_net, 614 ((struct sockaddr_at *)sa)->sat_addr.s_node); 615 break; 616 #endif /* SMALL */ 617 618 default: 619 (void)snprintf(line, sizeof line, "(%d) %s", 620 sa->sa_family, any_ntoa(sa)); 621 break; 622 623 } 624 return (line); 625 } 626 627 /* 628 * Return the name of the network whose address is given. 629 * The address is assumed to be that of a net or subnet, not a host. 630 */ 631 const char * 632 netname(struct sockaddr *sa, struct sockaddr *nm) 633 { 634 const char *cp = 0; 635 static char line[50]; 636 struct netent *np = 0; 637 u_int32_t net, mask; 638 u_int32_t i; 639 int subnetshift, nml; 640 struct in_addr in; 641 642 switch (sa->sa_family) { 643 644 case AF_INET: 645 in = ((struct sockaddr_in *)sa)->sin_addr; 646 i = ntohl(in.s_addr); 647 nml = netmask_length(nm, AF_INET); 648 if (i == 0) { 649 if (nml == 0) 650 cp = "default"; 651 else { 652 static char notdefault[sizeof(NOTDEFSTRING)]; 653 654 snprintf(notdefault, sizeof(notdefault), 655 "0.0.0.0/%s", 656 netmask_string(nm, nml, AF_INET)); 657 cp = notdefault; 658 } 659 } 660 else if (!nflag) { 661 if (IN_CLASSA(i)) { 662 mask = IN_CLASSA_NET; 663 subnetshift = 8; 664 } else if (IN_CLASSB(i)) { 665 mask = IN_CLASSB_NET; 666 subnetshift = 8; 667 } else { 668 mask = IN_CLASSC_NET; 669 subnetshift = 4; 670 } 671 /* 672 * If there are more bits than the standard mask 673 * would suggest, subnets must be in use. 674 * Guess at the subnet mask, assuming reasonable 675 * width subnet fields. 676 */ 677 while (i &~ mask) 678 mask = (int32_t)mask >> subnetshift; 679 net = i & mask; 680 while ((mask & 1) == 0) 681 mask >>= 1, net >>= 1; 682 np = getnetbyaddr(net, AF_INET); 683 if (np) 684 cp = np->n_name; 685 } 686 if (cp) 687 (void)strlcpy(line, cp, sizeof(line)); 688 else { 689 #if 0 /* XXX - This is silly... */ 690 #define C(x) ((x) & 0xff) 691 if ((i & 0xffffff) == 0) 692 (void)snprintf(line, sizeof line, "%u", 693 C(i >> 24)); 694 else if ((i & 0xffff) == 0) 695 (void)snprintf(line, sizeof line, "%u.%u", 696 C(i >> 24), C(i >> 16)); 697 else if ((i & 0xff) == 0) 698 (void)snprintf(line, sizeof line, "%u.%u.%u", 699 C(i >> 24), C(i >> 16), C(i >> 8)); 700 else 701 (void)snprintf(line, sizeof line, "%u.%u.%u.%u", 702 C(i >> 24), C(i >> 16), C(i >> 8), C(i)); 703 #undef C 704 #else /* XXX */ 705 if (nml == 0) 706 strlcpy(line, inet_ntoa(in), sizeof(line)); 707 else if (nml < 0) { 708 snprintf(line, sizeof(line), "%s&%s", 709 inet_ntoa(in), 710 netmask_string(nm, nml, AF_INET)); 711 } else { 712 snprintf(line, sizeof(line), "%s/%d", 713 inet_ntoa(in), nml); 714 } 715 #endif /* XXX */ 716 } 717 break; 718 719 case AF_LINK: 720 return (link_ntoa((struct sockaddr_dl *)sa)); 721 722 #ifdef INET6 723 case AF_INET6: 724 { 725 struct sockaddr_in6 sin6; 726 int niflags; 727 728 niflags = 0; 729 if (nflag) 730 niflags |= NI_NUMERICHOST; 731 memset(&sin6, 0, sizeof(sin6)); 732 memcpy(&sin6, sa, sa->sa_len); 733 sin6.sin6_len = sizeof(struct sockaddr_in6); 734 sin6.sin6_family = AF_INET6; 735 #ifdef __KAME__ 736 if (sa->sa_len == sizeof(struct sockaddr_in6) && 737 (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || 738 IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && 739 sin6.sin6_scope_id == 0) { 740 sin6.sin6_scope_id = 741 ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); 742 sin6.sin6_addr.s6_addr[2] = 0; 743 sin6.sin6_addr.s6_addr[3] = 0; 744 } 745 #endif 746 nml = netmask_length(nm, AF_INET6); 747 if (IN6_IS_ADDR_UNSPECIFIED(&sin6.sin6_addr)) { 748 if (nml == 0) 749 strlcpy(line, "::", sizeof(line)); 750 else 751 /* noncontiguous never happens in ipv6 */ 752 snprintf(line, sizeof(line), "::/%d", nml); 753 } 754 else if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, 755 line, sizeof(line), NULL, 0, niflags) != 0) 756 strlcpy(line, "invalid", sizeof(line)); 757 break; 758 } 759 #endif 760 761 #ifndef SMALL 762 case AF_NS: 763 return (ns_print((struct sockaddr_ns *)sa)); 764 765 case AF_ISO: 766 (void)snprintf(line, sizeof line, "iso %s", 767 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 768 break; 769 770 case AF_APPLETALK: 771 (void)snprintf(line, sizeof(line), "atalk %d.%d", 772 ((struct sockaddr_at *)sa)->sat_addr.s_net, 773 ((struct sockaddr_at *)sa)->sat_addr.s_node); 774 break; 775 #endif /* SMALL */ 776 777 default: 778 (void)snprintf(line, sizeof line, "af %d: %s", 779 sa->sa_family, any_ntoa(sa)); 780 break; 781 } 782 return (line); 783 } 784 785 static const char * 786 route_strerror(int error) 787 { 788 789 switch (error) { 790 case ESRCH: 791 return "not in table"; 792 case EBUSY: 793 return "entry in use"; 794 case ENOBUFS: 795 return "routing table overflow"; 796 default: 797 return strerror(error); 798 } 799 } 800 801 static void 802 set_metric(char *value, int key) 803 { 804 int flag = 0; 805 u_long noval, *valp = &noval; 806 807 switch (key) { 808 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break 809 caseof(K_MTU, RTV_MTU, rmx_mtu); 810 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); 811 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); 812 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); 813 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); 814 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); 815 caseof(K_RTT, RTV_RTT, rmx_rtt); 816 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); 817 } 818 rtm_inits |= flag; 819 if (lockrest || locking) 820 rt_metrics.rmx_locks |= flag; 821 if (locking) 822 locking = 0; 823 *valp = atoi(value); 824 } 825 826 static int 827 newroute(int argc, char **argv) 828 { 829 const char *cmd, *dest = "", *gateway = ""; 830 int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC; 831 int key; 832 struct hostent *hp = 0; 833 834 cmd = argv[0]; 835 af = 0; 836 if (*cmd != 'g') 837 shutdown(sock, SHUT_RD); /* Don't want to read back our messages */ 838 while (--argc > 0) { 839 if (**(++argv)== '-') { 840 switch (key = keyword(1 + *argv)) { 841 842 case K_SA: 843 af = PF_ROUTE; 844 aflen = sizeof(union sockunion); 845 break; 846 847 #ifndef SMALL 848 case K_ATALK: 849 af = AF_APPLETALK; 850 aflen = sizeof(struct sockaddr_at); 851 break; 852 #endif 853 854 case K_INET: 855 af = AF_INET; 856 aflen = sizeof(struct sockaddr_in); 857 break; 858 859 #ifdef INET6 860 case K_INET6: 861 af = AF_INET6; 862 aflen = sizeof(struct sockaddr_in6); 863 break; 864 #endif 865 866 case K_LINK: 867 af = AF_LINK; 868 aflen = sizeof(struct sockaddr_dl); 869 break; 870 871 #ifndef SMALL 872 case K_OSI: 873 case K_ISO: 874 af = AF_ISO; 875 aflen = sizeof(struct sockaddr_iso); 876 break; 877 878 case K_X25: 879 af = AF_CCITT; 880 aflen = sizeof(struct sockaddr_x25); 881 break; 882 883 case K_XNS: 884 af = AF_NS; 885 aflen = sizeof(struct sockaddr_ns); 886 break; 887 #endif /* SMALL */ 888 889 case K_IFACE: 890 case K_INTERFACE: 891 iflag++; 892 break; 893 case K_NOSTATIC: 894 flags &= ~RTF_STATIC; 895 break; 896 case K_LLINFO: 897 flags |= RTF_LLINFO; 898 break; 899 case K_LOCK: 900 locking = 1; 901 break; 902 case K_LOCKREST: 903 lockrest = 1; 904 break; 905 case K_HOST: 906 forcehost++; 907 break; 908 case K_REJECT: 909 flags |= RTF_REJECT; 910 break; 911 case K_BLACKHOLE: 912 flags |= RTF_BLACKHOLE; 913 break; 914 case K_CLONED: 915 flags |= RTF_CLONED; 916 break; 917 case K_NOCLONED: 918 flags &= ~RTF_CLONED; 919 break; 920 case K_PROTO1: 921 flags |= RTF_PROTO1; 922 break; 923 case K_PROTO2: 924 flags |= RTF_PROTO2; 925 break; 926 case K_CLONING: 927 flags |= RTF_CLONING; 928 break; 929 case K_NOCLONING: 930 flags &= ~RTF_CLONING; 931 break; 932 case K_XRESOLVE: 933 flags |= RTF_XRESOLVE; 934 break; 935 case K_STATIC: 936 flags |= RTF_STATIC; 937 break; 938 case K_IFA: 939 if (!--argc) 940 usage(1+*argv); 941 (void)getaddr(RTA_IFA, *++argv, 0); 942 break; 943 case K_IFP: 944 if (!--argc) 945 usage(1+*argv); 946 (void)getaddr(RTA_IFP, *++argv, 0); 947 break; 948 case K_GENMASK: 949 if (!--argc) 950 usage(1+*argv); 951 (void)getaddr(RTA_GENMASK, *++argv, 0); 952 break; 953 case K_GATEWAY: 954 if (!--argc) 955 usage(1+*argv); 956 (void)getaddr(RTA_GATEWAY, *++argv, 0); 957 break; 958 case K_DST: 959 if (!--argc) 960 usage(1+*argv); 961 ishost = getaddr(RTA_DST, *++argv, &hp); 962 dest = *argv; 963 break; 964 case K_NETMASK: 965 if (!--argc) 966 usage(1+*argv); 967 (void)getaddr(RTA_NETMASK, *++argv, 0); 968 /* FALLTHROUGH */ 969 case K_NET: 970 forcenet++; 971 break; 972 case K_PREFIXLEN: 973 if (!--argc) 974 usage(1+*argv); 975 ishost = prefixlen(*++argv); 976 break; 977 case K_MTU: 978 case K_HOPCOUNT: 979 case K_EXPIRE: 980 case K_RECVPIPE: 981 case K_SENDPIPE: 982 case K_SSTHRESH: 983 case K_RTT: 984 case K_RTTVAR: 985 if (!--argc) 986 usage(1+*argv); 987 set_metric(*++argv, key); 988 break; 989 default: 990 usage(1+*argv); 991 } 992 } else { 993 if ((rtm_addrs & RTA_DST) == 0) { 994 dest = *argv; 995 ishost = getaddr(RTA_DST, *argv, &hp); 996 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 997 gateway = *argv; 998 (void)getaddr(RTA_GATEWAY, *argv, &hp); 999 } else { 1000 ret = atoi(*argv); 1001 1002 if (ret == 0) { 1003 if (strcmp(*argv, "0") == 0) { 1004 if (!qflag) { 1005 warnx("%s, %s", 1006 "old usage of trailing 0", 1007 "assuming route to if"); 1008 } 1009 } else 1010 usage(NULL); 1011 iflag = 1; 1012 continue; 1013 } else if (ret > 0 && ret < 10) { 1014 if (!qflag) { 1015 warnx("%s, %s", 1016 "old usage of trailing digit", 1017 "assuming route via gateway"); 1018 } 1019 iflag = 0; 1020 continue; 1021 } 1022 (void)getaddr(RTA_NETMASK, *argv, 0); 1023 } 1024 } 1025 } 1026 if (forcehost && forcenet) 1027 errx(EXIT_FAILURE, "-host and -net conflict"); 1028 else if (forcehost) 1029 ishost = 1; 1030 else if (forcenet) 1031 ishost = 0; 1032 flags |= RTF_UP; 1033 if (ishost) 1034 flags |= RTF_HOST; 1035 if (iflag == 0) 1036 flags |= RTF_GATEWAY; 1037 for (attempts = 1; ; attempts++) { 1038 errno = 0; 1039 if ((ret = rtmsg(*cmd, flags)) == 0) 1040 break; 1041 if (errno != ENETUNREACH && errno != ESRCH) 1042 break; 1043 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 1044 hp->h_addr_list++; 1045 memmove(&so_gate.sin.sin_addr, hp->h_addr_list[0], 1046 hp->h_length); 1047 } else 1048 break; 1049 } 1050 if (*cmd == 'g') 1051 return (ret != 0); 1052 if (!qflag) { 1053 oerrno = errno; 1054 (void)printf("%s %s %s", cmd, ishost? "host" : "net", dest); 1055 if (*gateway) { 1056 (void)printf(": gateway %s", gateway); 1057 if (attempts > 1 && ret == 0 && af == AF_INET) 1058 (void)printf(" (%s)", 1059 inet_ntoa(so_gate.sin.sin_addr)); 1060 } 1061 if (ret == 0) 1062 (void)printf("\n"); 1063 else 1064 (void)printf(": %s\n", route_strerror(oerrno)); 1065 } 1066 return (ret != 0); 1067 } 1068 1069 static void 1070 inet_makenetandmask(u_int32_t net, struct sockaddr_in *isin) 1071 { 1072 u_int32_t addr, mask = 0; 1073 char *cp; 1074 1075 rtm_addrs |= RTA_NETMASK; 1076 if (net == 0) 1077 mask = addr = 0; 1078 else if (net < 128) { 1079 addr = net << IN_CLASSA_NSHIFT; 1080 mask = IN_CLASSA_NET; 1081 } else if (net < 192) { 1082 addr = net << IN_CLASSA_NSHIFT; 1083 mask = IN_CLASSB_NET; 1084 } else if (net < 224) { 1085 addr = net << IN_CLASSA_NSHIFT; 1086 mask = IN_CLASSC_NET; 1087 } else if (net < 256) { 1088 addr = net << IN_CLASSA_NSHIFT; 1089 mask = IN_CLASSD_NET; 1090 } else if (net < 49152) { /* 192 * 256 */ 1091 addr = net << IN_CLASSB_NSHIFT; 1092 mask = IN_CLASSB_NET; 1093 } else if (net < 57344) { /* 224 * 256 */ 1094 addr = net << IN_CLASSB_NSHIFT; 1095 mask = IN_CLASSC_NET; 1096 } else if (net < 65536) { 1097 addr = net << IN_CLASSB_NSHIFT; 1098 mask = IN_CLASSB_NET; 1099 } else if (net < 14680064L) { /* 224 * 65536 */ 1100 addr = net << IN_CLASSC_NSHIFT; 1101 mask = IN_CLASSC_NET; 1102 } else if (net < 16777216L) { 1103 addr = net << IN_CLASSC_NSHIFT; 1104 mask = IN_CLASSD_NET; 1105 } else { 1106 addr = net; 1107 if ((addr & IN_CLASSA_HOST) == 0) 1108 mask = IN_CLASSA_NET; 1109 else if ((addr & IN_CLASSB_HOST) == 0) 1110 mask = IN_CLASSB_NET; 1111 else if ((addr & IN_CLASSC_HOST) == 0) 1112 mask = IN_CLASSC_NET; 1113 else 1114 mask = -1; 1115 } 1116 isin->sin_addr.s_addr = htonl(addr); 1117 isin = &so_mask.sin; 1118 isin->sin_addr.s_addr = htonl(mask); 1119 isin->sin_len = 0; 1120 isin->sin_family = 0; 1121 cp = (char *)(&isin->sin_addr + 1); 1122 while (*--cp == 0 && cp > (char *)isin) 1123 ; 1124 isin->sin_len = 1 + cp - (char *)isin; 1125 isin->sin_family = AF_INET; 1126 } 1127 1128 #ifdef INET6 1129 /* 1130 * XXX the function may need more improvement... 1131 */ 1132 static int 1133 inet6_makenetandmask(struct sockaddr_in6 *sin6) 1134 { 1135 const char *plen; 1136 struct in6_addr in6; 1137 1138 plen = NULL; 1139 if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) && 1140 sin6->sin6_scope_id == 0) { 1141 plen = "0"; 1142 } else if ((sin6->sin6_addr.s6_addr[0] & 0xe0) == 0x20) { 1143 /* aggregatable global unicast - RFC2374 */ 1144 memset(&in6, 0, sizeof(in6)); 1145 if (!memcmp(&sin6->sin6_addr.s6_addr[8], &in6.s6_addr[8], 8)) 1146 plen = "64"; 1147 } 1148 1149 if (!plen || strcmp(plen, "128") == 0) 1150 return 1; 1151 else { 1152 rtm_addrs |= RTA_NETMASK; 1153 (void)prefixlen(plen); 1154 return 0; 1155 } 1156 } 1157 #endif 1158 1159 /* 1160 * Interpret an argument as a network address of some kind, 1161 * returning 1 if a host address, 0 if a network address. 1162 */ 1163 static int 1164 getaddr(int which, char *s, struct hostent **hpp) 1165 { 1166 sup su; 1167 struct hostent *hp; 1168 struct netent *np; 1169 u_int32_t val; 1170 char *t; 1171 int afamily; /* local copy of af so we can change it */ 1172 1173 if (af == 0) { 1174 af = AF_INET; 1175 aflen = sizeof(struct sockaddr_in); 1176 } 1177 afamily = af; 1178 rtm_addrs |= which; 1179 switch (which) { 1180 case RTA_DST: 1181 su = &so_dst; 1182 break; 1183 case RTA_GATEWAY: 1184 su = &so_gate; 1185 break; 1186 case RTA_NETMASK: 1187 su = &so_mask; 1188 break; 1189 case RTA_GENMASK: 1190 su = &so_genmask; 1191 break; 1192 case RTA_IFP: 1193 su = &so_ifp; 1194 afamily = AF_LINK; 1195 break; 1196 case RTA_IFA: 1197 su = &so_ifa; 1198 su->sa.sa_family = af; 1199 break; 1200 default: 1201 su = NULL; 1202 usage("Internal Error"); 1203 /*NOTREACHED*/ 1204 } 1205 su->sa.sa_len = aflen; 1206 su->sa.sa_family = afamily; /* cases that don't want it have left already */ 1207 if (strcmp(s, "default") == 0) { 1208 switch (which) { 1209 case RTA_DST: 1210 forcenet++; 1211 (void)getaddr(RTA_NETMASK, s, 0); 1212 break; 1213 case RTA_NETMASK: 1214 case RTA_GENMASK: 1215 su->sa.sa_len = 0; 1216 } 1217 return (0); 1218 } 1219 switch (afamily) { 1220 #ifdef INET6 1221 case AF_INET6: 1222 { 1223 struct addrinfo hints, *res; 1224 char *slash = 0; 1225 1226 if (which == RTA_DST && (slash = (strrchr(s, '/'))) != 0) 1227 *slash = '\0'; 1228 memset(&hints, 0, sizeof(hints)); 1229 hints.ai_family = afamily; /*AF_INET6*/ 1230 hints.ai_flags = AI_NUMERICHOST; 1231 hints.ai_socktype = SOCK_DGRAM; /*dummy*/ 1232 if (getaddrinfo(s, "0", &hints, &res) != 0) { 1233 hints.ai_flags = 0; 1234 if (slash) { 1235 *slash = '/'; 1236 slash = 0; 1237 } 1238 if (getaddrinfo(s, "0", &hints, &res) != 0) 1239 errx(EXIT_FAILURE, "%s: bad value", s); 1240 } 1241 if (slash) 1242 *slash = '/'; 1243 if (sizeof(su->sin6) != res->ai_addrlen) 1244 errx(EXIT_FAILURE, "%s: bad value", s); 1245 if (res->ai_next) { 1246 errx(EXIT_FAILURE, 1247 "%s: address resolved to multiple values", s); 1248 } 1249 memcpy(&su->sin6, res->ai_addr, sizeof(su->sin6)); 1250 freeaddrinfo(res); 1251 #ifdef __KAME__ 1252 if ((IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr) || 1253 IN6_IS_ADDR_MC_LINKLOCAL(&su->sin6.sin6_addr)) && 1254 su->sin6.sin6_scope_id) { 1255 *(u_int16_t *)&su->sin6.sin6_addr.s6_addr[2] = 1256 htons(su->sin6.sin6_scope_id); 1257 su->sin6.sin6_scope_id = 0; 1258 } 1259 #endif 1260 if (hints.ai_flags == AI_NUMERICHOST) { 1261 if (slash) 1262 return (prefixlen(slash + 1)); 1263 if (which == RTA_DST) 1264 return (inet6_makenetandmask(&su->sin6)); 1265 return (0); 1266 } else 1267 return (1); 1268 } 1269 #endif 1270 1271 #ifndef SMALL 1272 case AF_NS: 1273 if (which == RTA_DST) { 1274 struct sockaddr_ns *sms = &(so_mask.sns); 1275 memset(sms, 0, sizeof(*sms)); 1276 sms->sns_family = 0; 1277 sms->sns_len = 6; 1278 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 1279 rtm_addrs |= RTA_NETMASK; 1280 } 1281 su->sns.sns_addr = ns_addr(s); 1282 return (!ns_nullhost(su->sns.sns_addr)); 1283 1284 case AF_OSI: 1285 su->siso.siso_addr = *iso_addr(s); 1286 if (which == RTA_NETMASK || which == RTA_GENMASK) { 1287 char *cp = (char *)TSEL(&su->siso); 1288 su->siso.siso_nlen = 0; 1289 do {--cp ;} while ((cp > (char *)su) && (*cp == 0)); 1290 su->siso.siso_len = 1 + cp - (char *)su; 1291 } 1292 return (1); 1293 1294 case AF_CCITT: 1295 ccitt_addr(s, &su->sx25); 1296 return (which == RTA_DST ? x25_makemask() : 1); 1297 #endif /* SMALL */ 1298 1299 case PF_ROUTE: 1300 su->sa.sa_len = sizeof(*su); 1301 sockaddr(s, &su->sa); 1302 return (1); 1303 1304 #ifndef SMALL 1305 case AF_APPLETALK: 1306 t = strchr (s, '.'); 1307 if (!t) { 1308 badataddr: 1309 errx(EXIT_FAILURE, "bad address: %s", s); 1310 } 1311 val = atoi (s); 1312 if (val > 65535) 1313 goto badataddr; 1314 su->sat.sat_addr.s_net = val; 1315 val = atoi (t); 1316 if (val > 256) 1317 goto badataddr; 1318 su->sat.sat_addr.s_node = val; 1319 rtm_addrs |= RTA_NETMASK; 1320 return(forcehost || su->sat.sat_addr.s_node != 0); 1321 #endif 1322 1323 case AF_LINK: 1324 link_addr(s, &su->sdl); 1325 return (1); 1326 1327 case AF_INET: 1328 default: 1329 break; 1330 } 1331 1332 if (hpp == NULL) 1333 hpp = &hp; 1334 *hpp = NULL; 1335 1336 if ((t = strchr(s, '/')) != NULL && which == RTA_DST) { 1337 *t = '\0'; 1338 if (forcenet == 0) { 1339 if ((val = inet_addr(s)) != INADDR_NONE) { 1340 inet_makenetandmask(htonl(val), &su->sin); 1341 return prefixlen(&t[1]); 1342 } 1343 } else { 1344 if ((val = inet_network(s)) != INADDR_NONE) { 1345 inet_makenetandmask(val, &su->sin); 1346 return prefixlen(&t[1]); 1347 } 1348 } 1349 *t = '/'; 1350 } 1351 if (inet_aton(s, &su->sin.sin_addr) && 1352 (which != RTA_DST || forcenet == 0)) { 1353 val = su->sin.sin_addr.s_addr; 1354 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 1355 return (1); 1356 else { 1357 val = ntohl(val); 1358 goto netdone; 1359 } 1360 } 1361 if ((val = inet_network(s)) != INADDR_NONE || 1362 ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0)) { 1363 netdone: 1364 if (which == RTA_DST) 1365 inet_makenetandmask(val, &su->sin); 1366 return (0); 1367 } 1368 hp = gethostbyname(s); 1369 if (hp) { 1370 *hpp = hp; 1371 su->sin.sin_family = hp->h_addrtype; 1372 memmove(&su->sin.sin_addr, hp->h_addr, hp->h_length); 1373 return (1); 1374 } 1375 errx(EXIT_FAILURE, "%s: bad value", s); 1376 /*NOTREACHED*/ 1377 } 1378 1379 int 1380 prefixlen(const char *s) 1381 { 1382 int len = atoi(s), q, r; 1383 int max; 1384 1385 switch (af) { 1386 case AF_INET: 1387 max = sizeof(struct in_addr) * 8; 1388 break; 1389 #ifdef INET6 1390 case AF_INET6: 1391 max = sizeof(struct in6_addr) * 8; 1392 break; 1393 #endif 1394 default: 1395 errx(EXIT_FAILURE, "prefixlen is not supported with af %d", af); 1396 /*NOTREACHED*/ 1397 } 1398 1399 rtm_addrs |= RTA_NETMASK; 1400 if (len < -1 || len > max) 1401 errx(EXIT_FAILURE, "%s: bad value", s); 1402 1403 q = len >> 3; 1404 r = len & 7; 1405 switch (af) { 1406 case AF_INET: 1407 memset(&so_mask, 0, sizeof(so_mask)); 1408 so_mask.sin.sin_family = AF_INET; 1409 so_mask.sin.sin_len = sizeof(struct sockaddr_in); 1410 so_mask.sin.sin_addr.s_addr = htonl(0xffffffff << (32 - len)); 1411 break; 1412 #ifdef INET6 1413 case AF_INET6: 1414 so_mask.sin6.sin6_family = AF_INET6; 1415 so_mask.sin6.sin6_len = sizeof(struct sockaddr_in6); 1416 memset((void *)&so_mask.sin6.sin6_addr, 0, 1417 sizeof(so_mask.sin6.sin6_addr)); 1418 if (q > 0) 1419 memset((void *)&so_mask.sin6.sin6_addr, 0xff, q); 1420 if (r > 0) 1421 *((u_char *)&so_mask.sin6.sin6_addr + q) = 1422 (0xff00 >> r) & 0xff; 1423 break; 1424 #endif 1425 } 1426 return (len == max); 1427 } 1428 1429 #ifndef SMALL 1430 int 1431 x25_makemask(void) 1432 { 1433 char *cp; 1434 1435 if ((rtm_addrs & RTA_NETMASK) == 0) { 1436 rtm_addrs |= RTA_NETMASK; 1437 for (cp = (char *)&so_mask.sx25.x25_net; 1438 cp < &so_mask.sx25.x25_opts.op_flags; cp++) 1439 *cp = -1; 1440 so_mask.sx25.x25_len = (u_char)&(((sup)0)->sx25.x25_opts); 1441 } 1442 return 0; 1443 } 1444 1445 1446 const char * 1447 ns_print(struct sockaddr_ns *sns) 1448 { 1449 struct ns_addr work; 1450 union { union ns_net net_e; u_int32_t int32_t_e; } net; 1451 u_short port; 1452 static char mybuf[50], cport[10], chost[25]; 1453 const char *host = ""; 1454 char *p; 1455 u_char *q; 1456 1457 work = sns->sns_addr; 1458 port = ntohs(work.x_port); 1459 work.x_port = 0; 1460 net.net_e = work.x_net; 1461 if (ns_nullhost(work) && net.int32_t_e == 0) { 1462 if (!port) 1463 return ("*.*"); 1464 (void)snprintf(mybuf, sizeof mybuf, "*.%XH", port); 1465 return (mybuf); 1466 } 1467 1468 if (memcmp(ns_bh, work.x_host.c_host, 6) == 0) 1469 host = "any"; 1470 else if (memcmp(ns_nullh, work.x_host.c_host, 6) == 0) 1471 host = "*"; 1472 else { 1473 q = work.x_host.c_host; 1474 (void)snprintf(chost, sizeof chost, "%02X%02X%02X%02X%02X%02XH", 1475 q[0], q[1], q[2], q[3], q[4], q[5]); 1476 for (p = chost; *p == '0' && p < chost + 12; p++) 1477 /* void */; 1478 host = p; 1479 } 1480 if (port) 1481 (void)snprintf(cport, sizeof cport, ".%XH", htons(port)); 1482 else 1483 *cport = 0; 1484 1485 (void)snprintf(mybuf, sizeof mybuf, "%XH.%s%s", 1486 (u_int32_t)ntohl(net.int32_t_e), host, cport); 1487 return (mybuf); 1488 } 1489 1490 static void 1491 interfaces(void) 1492 { 1493 size_t needed; 1494 int mib[6]; 1495 char *buf, *lim, *next; 1496 struct rt_msghdr *rtm; 1497 1498 mib[0] = CTL_NET; 1499 mib[1] = PF_ROUTE; 1500 mib[2] = 0; /* protocol */ 1501 mib[3] = 0; /* wildcard address family */ 1502 mib[4] = NET_RT_IFLIST; 1503 mib[5] = 0; /* no flags */ 1504 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 1505 err(EXIT_FAILURE, "route-sysctl-estimate"); 1506 if (needed) { 1507 if ((buf = malloc(needed)) == NULL) 1508 err(EXIT_FAILURE, "malloc"); 1509 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { 1510 err(EXIT_FAILURE, 1511 "actual retrieval of interface table"); 1512 } 1513 lim = buf + needed; 1514 for (next = buf; next < lim; next += rtm->rtm_msglen) { 1515 rtm = (struct rt_msghdr *)next; 1516 print_rtmsg(rtm, rtm->rtm_msglen); 1517 } 1518 free(buf); 1519 } 1520 } 1521 1522 static void 1523 monitor(void) 1524 { 1525 int n; 1526 char msg[2048]; 1527 1528 verbose = 1; 1529 if (debugonly) { 1530 interfaces(); 1531 exit(0); 1532 } 1533 for(;;) { 1534 time_t now; 1535 n = read(sock, msg, 2048); 1536 now = time(NULL); 1537 (void)printf("got message of size %d on %s", n, ctime(&now)); 1538 print_rtmsg((struct rt_msghdr *)msg, n); 1539 } 1540 } 1541 1542 #endif /* SMALL */ 1543 1544 1545 struct { 1546 struct rt_msghdr m_rtm; 1547 char m_space[512]; 1548 } m_rtmsg; 1549 1550 static int 1551 rtmsg(int cmd, int flags) 1552 { 1553 static int seq; 1554 int rlen; 1555 char *cp = m_rtmsg.m_space; 1556 int l; 1557 1558 #define NEXTADDR(w, u) \ 1559 if (rtm_addrs & (w)) {\ 1560 l = ROUNDUP(u.sa.sa_len); memmove(cp, &(u), l); cp += l;\ 1561 if (verbose && ! shortoutput) sodump(&(u),#u);\ 1562 } 1563 1564 errno = 0; 1565 memset(&m_rtmsg, 0, sizeof(m_rtmsg)); 1566 if (cmd == 'a') 1567 cmd = RTM_ADD; 1568 else if (cmd == 'c') 1569 cmd = RTM_CHANGE; 1570 else if (cmd == 'g') { 1571 #ifdef SMALL 1572 return (-1); 1573 #else /* SMALL */ 1574 cmd = RTM_GET; 1575 if (so_ifp.sa.sa_family == 0) { 1576 so_ifp.sa.sa_family = AF_LINK; 1577 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1578 rtm_addrs |= RTA_IFP; 1579 } 1580 #endif /* SMALL */ 1581 } else 1582 cmd = RTM_DELETE; 1583 #define rtm m_rtmsg.m_rtm 1584 rtm.rtm_type = cmd; 1585 rtm.rtm_flags = flags; 1586 rtm.rtm_version = RTM_VERSION; 1587 rtm.rtm_seq = ++seq; 1588 rtm.rtm_addrs = rtm_addrs; 1589 rtm.rtm_rmx = rt_metrics; 1590 rtm.rtm_inits = rtm_inits; 1591 1592 if (rtm_addrs & RTA_NETMASK) 1593 mask_addr(); 1594 NEXTADDR(RTA_DST, so_dst); 1595 NEXTADDR(RTA_GATEWAY, so_gate); 1596 NEXTADDR(RTA_NETMASK, so_mask); 1597 NEXTADDR(RTA_GENMASK, so_genmask); 1598 NEXTADDR(RTA_IFP, so_ifp); 1599 NEXTADDR(RTA_IFA, so_ifa); 1600 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1601 if (verbose && ! shortoutput) { 1602 if (rtm_addrs) 1603 putchar('\n'); 1604 print_rtmsg(&rtm, l); 1605 } 1606 if (debugonly) 1607 return (0); 1608 if ((rlen = write(sock, (char *)&m_rtmsg, l)) < 0) { 1609 warnx("writing to routing socket: %s", route_strerror(errno)); 1610 return (-1); 1611 } 1612 if (rlen < l) { 1613 warnx("write to routing socket, got %d for rlen", rlen); 1614 return 1; 1615 } 1616 #ifndef SMALL 1617 if (cmd == RTM_GET) { 1618 do { 1619 l = read(sock, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1620 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1621 if (l < 0) 1622 err(EXIT_FAILURE, "read from routing socket"); 1623 else 1624 return print_getmsg(&rtm, l); 1625 } 1626 #endif /* SMALL */ 1627 #undef rtm 1628 return (0); 1629 } 1630 1631 static void 1632 mask_addr(void) 1633 { 1634 int olen = so_mask.sa.sa_len; 1635 char *cp1 = olen + (char *)&so_mask, *cp2; 1636 1637 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1638 if (*--cp1 != 0) { 1639 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1640 break; 1641 } 1642 if ((rtm_addrs & RTA_DST) == 0) 1643 return; 1644 switch (so_dst.sa.sa_family) { 1645 case AF_INET: 1646 #ifdef INET6 1647 case AF_INET6: 1648 #endif 1649 #ifndef SMALL 1650 case AF_APPLETALK: 1651 case AF_NS: 1652 case AF_CCITT: 1653 #endif /* SMALL */ 1654 case 0: 1655 return; 1656 #ifndef SMALL 1657 case AF_ISO: 1658 olen = MIN(so_dst.siso.siso_nlen, 1659 MAX(so_mask.sa.sa_len - 6, 0)); 1660 break; 1661 #endif /* SMALL */ 1662 } 1663 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; 1664 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; 1665 while (cp2 > cp1) 1666 *--cp2 = 0; 1667 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; 1668 while (cp1 > so_dst.sa.sa_data) 1669 *--cp1 &= *--cp2; 1670 #ifndef SMALL 1671 switch (so_dst.sa.sa_family) { 1672 case AF_ISO: 1673 so_dst.siso.siso_nlen = olen; 1674 break; 1675 } 1676 #endif /* SMALL */ 1677 } 1678 1679 const char *msgtypes[] = { 1680 "", 1681 "RTM_ADD: Add Route", 1682 "RTM_DELETE: Delete Route", 1683 "RTM_CHANGE: Change Metrics or flags", 1684 "RTM_GET: Report Metrics", 1685 "RTM_LOSING: Kernel Suspects Partitioning", 1686 "RTM_REDIRECT: Told to use different route", 1687 "RTM_MISS: Lookup failed on this address", 1688 "RTM_LOCK: fix specified metrics", 1689 "RTM_OLDADD: caused by SIOCADDRT", 1690 "RTM_OLDDEL: caused by SIOCDELRT", 1691 "RTM_RESOLVE: Route created by cloning", 1692 "RTM_NEWADDR: address being added to iface", 1693 "RTM_DELADDR: address being removed from iface", 1694 "RTM_OIFINFO: iface status change (pre-1.5)", 1695 "RTM_IFINFO: iface status change", 1696 "RTM_IFANNOUNCE: iface arrival/departure", 1697 "RTM_IEEE80211: IEEE80211 wireless event", 1698 0, 1699 }; 1700 1701 const char metricnames[] = 1702 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount\1mtu"; 1703 const char routeflags[] = 1704 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016CLONED\017PROTO2\020PROTO1"; 1705 const char ifnetflags[] = 1706 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6NOTRAILERS\7RUNNING\010NOARP\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1\017LINK2\020MULTICAST"; 1707 const char addrnames[] = 1708 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1709 1710 1711 #ifndef SMALL 1712 static const char * 1713 linkstate(struct if_msghdr *ifm) 1714 { 1715 static char buf[64]; 1716 1717 switch (ifm->ifm_data.ifi_link_state) { 1718 case LINK_STATE_UNKNOWN: 1719 return "carrier: unknown"; 1720 case LINK_STATE_DOWN: 1721 return "carrier: no carrier"; 1722 case LINK_STATE_UP: 1723 return "carrier: active"; 1724 default: 1725 (void)snprintf(buf, sizeof(buf), "carrier: 0x%x", 1726 ifm->ifm_data.ifi_link_state); 1727 return buf; 1728 } 1729 } 1730 #endif /* SMALL */ 1731 1732 static void 1733 print_rtmsg(struct rt_msghdr *rtm, int msglen) 1734 { 1735 struct if_msghdr *ifm; 1736 struct ifa_msghdr *ifam; 1737 struct if_announcemsghdr *ifan; 1738 union { 1739 struct ieee80211_join_event join; 1740 struct ieee80211_leave_event leave; 1741 struct ieee80211_replay_event replay; 1742 struct ieee80211_michael_event michael; 1743 } ev; 1744 size_t evlen = 0; 1745 1746 if (verbose == 0) 1747 return; 1748 if (rtm->rtm_version != RTM_VERSION) { 1749 (void)printf("routing message version %d not understood\n", 1750 rtm->rtm_version); 1751 return; 1752 } 1753 if (msgtypes[rtm->rtm_type]) 1754 (void)printf("%s: ", msgtypes[rtm->rtm_type]); 1755 else 1756 (void)printf("#%d: ", rtm->rtm_type); 1757 (void)printf("len %d, ", rtm->rtm_msglen); 1758 switch (rtm->rtm_type) { 1759 case RTM_IFINFO: 1760 ifm = (struct if_msghdr *)rtm; 1761 (void)printf("if# %d, %s, flags: ", ifm->ifm_index, 1762 #ifdef SMALL 1763 "" 1764 #else 1765 linkstate(ifm) 1766 #endif /* SMALL */ 1767 ); 1768 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1769 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1770 break; 1771 case RTM_NEWADDR: 1772 case RTM_DELADDR: 1773 ifam = (struct ifa_msghdr *)rtm; 1774 (void)printf("metric %d, flags: ", ifam->ifam_metric); 1775 bprintf(stdout, ifam->ifam_flags, routeflags); 1776 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1777 break; 1778 case RTM_IEEE80211: 1779 ifan = (struct if_announcemsghdr *)rtm; 1780 (void)printf("if# %d, what: ", ifan->ifan_index); 1781 switch (ifan->ifan_what) { 1782 case RTM_IEEE80211_ASSOC: 1783 printf("associate"); 1784 break; 1785 case RTM_IEEE80211_REASSOC: 1786 printf("re-associate"); 1787 break; 1788 case RTM_IEEE80211_DISASSOC: 1789 printf("disassociate"); 1790 break; 1791 case RTM_IEEE80211_SCAN: 1792 printf("scan complete"); 1793 break; 1794 case RTM_IEEE80211_JOIN: 1795 evlen = sizeof(ev.join); 1796 printf("join"); 1797 break; 1798 case RTM_IEEE80211_LEAVE: 1799 evlen = sizeof(ev.leave); 1800 printf("leave"); 1801 break; 1802 case RTM_IEEE80211_MICHAEL: 1803 evlen = sizeof(ev.michael); 1804 printf("michael"); 1805 break; 1806 case RTM_IEEE80211_REPLAY: 1807 evlen = sizeof(ev.replay); 1808 printf("replay"); 1809 break; 1810 default: 1811 evlen = 0; 1812 printf("#%d", ifan->ifan_what); 1813 break; 1814 } 1815 if (sizeof(*ifan) + evlen > ifan->ifan_msglen) { 1816 printf(" (truncated)\n"); 1817 break; 1818 } 1819 (void)memcpy(&ev, (ifan + 1), evlen); 1820 switch (ifan->ifan_what) { 1821 case RTM_IEEE80211_JOIN: 1822 case RTM_IEEE80211_LEAVE: 1823 printf(" mac %" PRIETHER, 1824 PRIETHER_ARGS(ev.join.iev_addr)); 1825 break; 1826 case RTM_IEEE80211_REPLAY: 1827 case RTM_IEEE80211_MICHAEL: 1828 printf(" src %" PRIETHER " dst %" PRIETHER 1829 " cipher %" PRIu8 " keyix %" PRIu8, 1830 PRIETHER_ARGS(ev.replay.iev_src), 1831 PRIETHER_ARGS(ev.replay.iev_dst), 1832 ev.replay.iev_cipher, 1833 ev.replay.iev_keyix); 1834 if (ifan->ifan_what == RTM_IEEE80211_REPLAY) { 1835 printf(" key rsc %#" PRIx64 1836 " frame rsc %#" PRIx64, 1837 ev.replay.iev_keyrsc, ev.replay.iev_rsc); 1838 } 1839 break; 1840 default: 1841 break; 1842 } 1843 printf("\n"); 1844 break; 1845 case RTM_IFANNOUNCE: 1846 ifan = (struct if_announcemsghdr *)rtm; 1847 (void)printf("if# %d, what: ", ifan->ifan_index); 1848 switch (ifan->ifan_what) { 1849 case IFAN_ARRIVAL: 1850 printf("arrival"); 1851 break; 1852 case IFAN_DEPARTURE: 1853 printf("departure"); 1854 break; 1855 default: 1856 printf("#%d", ifan->ifan_what); 1857 break; 1858 } 1859 printf("\n"); 1860 break; 1861 default: 1862 (void)printf("pid %d, seq %d, errno %d, flags: ", 1863 rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1864 bprintf(stdout, rtm->rtm_flags, routeflags); 1865 pmsg_common(rtm); 1866 } 1867 } 1868 1869 #ifndef SMALL 1870 static int 1871 print_getmsg(struct rt_msghdr *rtm, int msglen) 1872 { 1873 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL, *ifa = NULL; 1874 struct sockaddr_dl *ifp = NULL; 1875 struct sockaddr *sa; 1876 char *cp; 1877 int i; 1878 1879 if (! shortoutput) 1880 (void)printf(" route to: %s\n", 1881 routename((struct sockaddr *) &so_dst, NULL, RTF_HOST)); 1882 if (rtm->rtm_version != RTM_VERSION) { 1883 warnx("routing message version %d not understood", 1884 rtm->rtm_version); 1885 return 1; 1886 } 1887 if (rtm->rtm_msglen > msglen) { 1888 warnx("message length mismatch, in packet %d, returned %d", 1889 rtm->rtm_msglen, msglen); 1890 } 1891 if (rtm->rtm_errno) { 1892 warnx("RTM_GET: %s (errno %d)", 1893 strerror(rtm->rtm_errno), rtm->rtm_errno); 1894 return 1; 1895 } 1896 cp = ((char *)(rtm + 1)); 1897 if (rtm->rtm_addrs) 1898 for (i = 1; i; i <<= 1) 1899 if (i & rtm->rtm_addrs) { 1900 sa = (struct sockaddr *)cp; 1901 switch (i) { 1902 case RTA_DST: 1903 dst = sa; 1904 break; 1905 case RTA_GATEWAY: 1906 gate = sa; 1907 break; 1908 case RTA_NETMASK: 1909 mask = sa; 1910 break; 1911 case RTA_IFP: 1912 if (sa->sa_family == AF_LINK && 1913 ((struct sockaddr_dl *)sa)->sdl_nlen) 1914 ifp = (struct sockaddr_dl *)sa; 1915 break; 1916 case RTA_IFA: 1917 ifa = sa; 1918 break; 1919 } 1920 ADVANCE(cp, sa); 1921 } 1922 if (dst && mask) 1923 mask->sa_family = dst->sa_family; /* XXX */ 1924 if (dst && ! shortoutput) 1925 (void)printf("destination: %s\n", 1926 routename(dst, mask, RTF_HOST)); 1927 if (mask && ! shortoutput) { 1928 int savenflag = nflag; 1929 1930 nflag = 1; 1931 (void)printf(" mask: %s\n", 1932 routename(mask, NULL, RTF_HOST)); 1933 nflag = savenflag; 1934 } 1935 if (gate && rtm->rtm_flags & RTF_GATEWAY) { 1936 const char *name; 1937 1938 name = routename(gate, NULL, RTF_HOST); 1939 if (shortoutput) { 1940 if (*name == '\0') 1941 return (1); 1942 (void)printf("%s\n", name); 1943 } else 1944 (void)printf(" gateway: %s\n", name); 1945 } 1946 if (ifa && ! shortoutput) 1947 (void)printf(" local addr: %s\n", 1948 routename(ifa, NULL, RTF_HOST)); 1949 if (ifp && ! shortoutput) 1950 (void)printf(" interface: %.*s\n", 1951 ifp->sdl_nlen, ifp->sdl_data); 1952 if (! shortoutput) { 1953 (void)printf(" flags: "); 1954 bprintf(stdout, rtm->rtm_flags, routeflags); 1955 } 1956 1957 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') 1958 #define msec(u) (((u) + 500) / 1000) /* usec to msec */ 1959 1960 if (! shortoutput) { 1961 (void)printf("\n%s\n", "\ 1962 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire"); 1963 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); 1964 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); 1965 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); 1966 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); 1967 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR)); 1968 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT)); 1969 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); 1970 if (rtm->rtm_rmx.rmx_expire) 1971 rtm->rtm_rmx.rmx_expire -= time(0); 1972 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); 1973 } 1974 #undef lock 1975 #undef msec 1976 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) 1977 1978 if (shortoutput) 1979 return ((rtm->rtm_addrs & RTF_GATEWAY) == 0); 1980 else if (verbose) 1981 pmsg_common(rtm); 1982 else if (rtm->rtm_addrs &~ RTA_IGN) { 1983 (void)printf("sockaddrs: "); 1984 bprintf(stdout, rtm->rtm_addrs, addrnames); 1985 putchar('\n'); 1986 } 1987 return 0; 1988 #undef RTA_IGN 1989 } 1990 #endif /* SMALL */ 1991 1992 void 1993 pmsg_common(struct rt_msghdr *rtm) 1994 { 1995 (void)printf("\nlocks: "); 1996 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1997 (void)printf(" inits: "); 1998 bprintf(stdout, rtm->rtm_inits, metricnames); 1999 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 2000 } 2001 2002 static void 2003 pmsg_addrs(char *cp, int addrs) 2004 { 2005 struct sockaddr *sa[RTAX_MAX]; 2006 int i, nmf; 2007 2008 if (addrs != 0) { 2009 (void)printf("\nsockaddrs: "); 2010 bprintf(stdout, addrs, addrnames); 2011 (void)putchar('\n'); 2012 nmf = -1; 2013 for (i = 0; i < RTAX_MAX; i++) { 2014 if ((1 << i) & addrs) { 2015 sa[i] = (struct sockaddr *)cp; 2016 if ((i == RTAX_DST || i == RTAX_IFA) && 2017 nmf == -1) 2018 nmf = sa[i]->sa_family; 2019 ADVANCE(cp, sa[i]); 2020 } else 2021 sa[i] = NULL; 2022 } 2023 for (i = 0; i < RTAX_MAX; i++) { 2024 if (sa[i] != NULL) { 2025 if (i == RTAX_NETMASK && sa[i]->sa_len) 2026 (void)printf(" %s", 2027 netmask_string(sa[i], -1, nmf)); 2028 else 2029 (void)printf(" %s", 2030 routename(sa[i], NULL, RTF_HOST)); 2031 } 2032 } 2033 } 2034 (void)putchar('\n'); 2035 (void)fflush(stdout); 2036 } 2037 2038 static void 2039 bprintf(FILE *fp, int b, const char *f) 2040 { 2041 int i; 2042 int gotsome = 0; 2043 const uint8_t *s = (const uint8_t *)f; 2044 2045 if (b == 0) 2046 return; 2047 while ((i = *s++) != 0) { 2048 if (b & (1 << (i-1))) { 2049 if (gotsome == 0) 2050 i = '<'; 2051 else 2052 i = ','; 2053 (void)putc(i, fp); 2054 gotsome = 1; 2055 for (; (i = *s) > 32; s++) 2056 (void)putc(i, fp); 2057 } else 2058 while (*s > 32) 2059 s++; 2060 } 2061 if (gotsome) 2062 (void)putc('>', fp); 2063 } 2064 2065 int 2066 keyword(char *cp) 2067 { 2068 struct keytab *kt = keywords; 2069 2070 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 2071 kt++; 2072 return kt->kt_i; 2073 } 2074 2075 static void 2076 sodump(sup su, const char *which) 2077 { 2078 #ifdef INET6 2079 char ntop_buf[NI_MAXHOST]; 2080 #endif 2081 2082 switch (su->sa.sa_family) { 2083 case AF_INET: 2084 (void)printf("%s: inet %s; ", 2085 which, inet_ntoa(su->sin.sin_addr)); 2086 break; 2087 #ifndef SMALL 2088 case AF_APPLETALK: 2089 (void)printf("%s: atalk %d.%d; ", 2090 which, su->sat.sat_addr.s_net, su->sat.sat_addr.s_node); 2091 break; 2092 #endif 2093 case AF_LINK: 2094 (void)printf("%s: link %s; ", 2095 which, link_ntoa(&su->sdl)); 2096 break; 2097 #ifdef INET6 2098 case AF_INET6: 2099 (void)printf("%s: inet6 %s; ", 2100 which, inet_ntop(AF_INET6, &su->sin6.sin6_addr, 2101 ntop_buf, sizeof(ntop_buf))); 2102 break; 2103 #endif 2104 #ifndef SMALL 2105 case AF_ISO: 2106 (void)printf("%s: iso %s; ", 2107 which, iso_ntoa(&su->siso.siso_addr)); 2108 break; 2109 case AF_NS: 2110 (void)printf("%s: xns %s; ", 2111 which, ns_ntoa(su->sns.sns_addr)); 2112 break; 2113 #endif /* SMALL */ 2114 default: 2115 (void)printf("%s: (%d) %s; ", 2116 which, su->sa.sa_family, any_ntoa(&su->sa)); 2117 } 2118 (void)fflush(stdout); 2119 } 2120 2121 /* States*/ 2122 #define VIRGIN 0 2123 #define GOTONE 1 2124 #define GOTTWO 2 2125 /* Inputs */ 2126 #define DIGIT (4*0) 2127 #define END (4*1) 2128 #define DELIM (4*2) 2129 2130 static void 2131 sockaddr(char *addr, struct sockaddr *sa) 2132 { 2133 char *cp = (char *)sa; 2134 int size = sa->sa_len; 2135 char *cplim = cp + size; 2136 int byte = 0, state = VIRGIN, new = 0; 2137 2138 (void)memset(cp, 0, size); 2139 cp++; 2140 do { 2141 if ((*addr >= '0') && (*addr <= '9')) { 2142 new = *addr - '0'; 2143 } else if ((*addr >= 'a') && (*addr <= 'f')) { 2144 new = *addr - 'a' + 10; 2145 } else if ((*addr >= 'A') && (*addr <= 'F')) { 2146 new = *addr - 'A' + 10; 2147 } else if (*addr == 0) 2148 state |= END; 2149 else 2150 state |= DELIM; 2151 addr++; 2152 switch (state /* | INPUT */) { 2153 case GOTTWO | DIGIT: 2154 *cp++ = byte; /*FALLTHROUGH*/ 2155 case VIRGIN | DIGIT: 2156 state = GOTONE; byte = new; continue; 2157 case GOTONE | DIGIT: 2158 state = GOTTWO; byte = new + (byte << 4); continue; 2159 default: /* | DELIM */ 2160 state = VIRGIN; *cp++ = byte; byte = 0; continue; 2161 case GOTONE | END: 2162 case GOTTWO | END: 2163 *cp++ = byte; /* FALLTHROUGH */ 2164 case VIRGIN | END: 2165 break; 2166 } 2167 break; 2168 } while (cp < cplim); 2169 sa->sa_len = cp - (char *)sa; 2170 } 2171
Indexes created Sun Sep 28 16:09:52 GMT 2025