1 /* 2 * Copyright (c) 1983, 1989, 1991, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifndef lint 35 static const char copyright[] = 36 "@(#) Copyright (c) 1983, 1989, 1991, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38 #endif /* not lint */ 39 40 #ifndef lint 41 #if 0 42 static char sccsid[] = "@(#)route.c 8.3 (Berkeley) 3/19/94"; 43 #endif 44 static const char rcsid[] = 45 "$FreeBSD$"; 46 #endif /* not lint */ 47 48 #include <sys/param.h> 49 #include <sys/file.h> 50 #include <sys/socket.h> 51 #include <sys/ioctl.h> 52 #include <sys/sysctl.h> 53 #include <sys/types.h> 54 55 #include <net/if.h> 56 #include <net/route.h> 57 #include <net/if_dl.h> 58 #include <netinet/in.h> 59 #include <netatalk/at.h> 60 #ifdef NS 61 #include <netns/ns.h> 62 #endif 63 #include <arpa/inet.h> 64 #include <netdb.h> 65 66 #include <ctype.h> 67 #include <err.h> 68 #include <errno.h> 69 #include <stdio.h> 70 #include <stdlib.h> 71 #include <string.h> 72 #include <sysexits.h> 73 #include <unistd.h> 74 75 struct keytab { 76 char *kt_cp; 77 int kt_i; 78 } keywords[] = { 79 #include "keywords.h" 80 {0, 0} 81 }; 82 83 struct ortentry route; 84 union sockunion { 85 struct sockaddr sa; 86 struct sockaddr_in sin; 87 #ifdef INET6 88 struct sockaddr_in6 sin6; 89 #endif 90 struct sockaddr_at sat; 91 #ifdef NS 92 struct sockaddr_ns sns; 93 #endif 94 struct sockaddr_dl sdl; 95 } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; 96 97 typedef union sockunion *sup; 98 int pid, rtm_addrs, uid; 99 int s; 100 int forcehost, forcenet, doflush, nflag, af, qflag, tflag, keyword(); 101 int iflag, verbose, aflen = sizeof (struct sockaddr_in); 102 int locking, lockrest, debugonly; 103 struct rt_metrics rt_metrics; 104 u_long rtm_inits; 105 int atalk_aton __P((const char *, struct at_addr *)); 106 char *atalk_ntoa __P((struct at_addr)); 107 char *routename(), *netname(); 108 void flushroutes(), newroute(), monitor(), sockaddr(), sodump(), bprintf(); 109 void print_getmsg(), print_rtmsg(), pmsg_common(), pmsg_addrs(), mask_addr(); 110 int getaddr(), rtmsg(), x25_makemask(); 111 int prefixlen(); 112 extern char *iso_ntoa(); 113 114 void usage __P((const char *)) __dead2; 115 116 #ifdef INET6 117 char ntop_buf[INET6_ADDRSTRLEN]; /*for inet_ntop()*/ 118 #endif 119 120 void 121 usage(cp) 122 const char *cp; 123 { 124 if (cp) 125 warnx("bad keyword: %s", cp); 126 (void) fprintf(stderr, 127 "usage: route [-dnqtv] command [[modifiers] args]\n"); 128 exit(EX_USAGE); 129 /* NOTREACHED */ 130 } 131 132 #define ROUNDUP(a) \ 133 ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 134 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 135 136 int 137 main(argc, argv) 138 int argc; 139 char **argv; 140 { 141 int ch; 142 143 if (argc < 2) 144 usage((char *)NULL); 145 146 while ((ch = getopt(argc, argv, "nqdtv")) != -1) 147 switch(ch) { 148 case 'n': 149 nflag = 1; 150 break; 151 case 'q': 152 qflag = 1; 153 break; 154 case 'v': 155 verbose = 1; 156 break; 157 case 't': 158 tflag = 1; 159 break; 160 case 'd': 161 debugonly = 1; 162 break; 163 case '?': 164 default: 165 usage((char *)NULL); 166 } 167 argc -= optind; 168 argv += optind; 169 170 pid = getpid(); 171 uid = getuid(); 172 if (tflag) 173 s = open("/dev/null", O_WRONLY, 0); 174 else 175 s = socket(PF_ROUTE, SOCK_RAW, 0); 176 if (s < 0) 177 err(EX_OSERR, "socket"); 178 setuid(uid); 179 if (*argv) 180 switch (keyword(*argv)) { 181 case K_GET: 182 uid = 0; 183 /* FALLTHROUGH */ 184 185 case K_CHANGE: 186 case K_ADD: 187 case K_DELETE: 188 newroute(argc, argv); 189 exit(0); 190 /* NOTREACHED */ 191 192 case K_MONITOR: 193 monitor(); 194 /* NOTREACHED */ 195 196 case K_FLUSH: 197 flushroutes(argc, argv); 198 exit(0); 199 /* NOTREACHED */ 200 } 201 usage(*argv); 202 /* NOTREACHED */ 203 } 204 205 /* 206 * Purge all entries in the routing tables not 207 * associated with network interfaces. 208 */ 209 void 210 flushroutes(argc, argv) 211 int argc; 212 char *argv[]; 213 { 214 size_t needed; 215 int mib[6], rlen, seqno; 216 char *buf, *next, *lim; 217 register struct rt_msghdr *rtm; 218 219 if (uid) { 220 errx(EX_NOPERM, "must be root to alter routing table"); 221 } 222 shutdown(s, 0); /* Don't want to read back our messages */ 223 if (argc > 1) { 224 argv++; 225 if (argc == 2 && **argv == '-') 226 switch (keyword(*argv + 1)) { 227 case K_INET: 228 af = AF_INET; 229 break; 230 #ifdef INET6 231 case K_INET6: 232 af = AF_INET6; 233 break; 234 #endif 235 case K_ATALK: 236 af = AF_APPLETALK; 237 break; 238 #ifdef NS 239 case K_XNS: 240 af = AF_NS; 241 break; 242 #endif 243 case K_LINK: 244 af = AF_LINK; 245 break; 246 default: 247 goto bad; 248 } else 249 bad: usage(*argv); 250 } 251 mib[0] = CTL_NET; 252 mib[1] = PF_ROUTE; 253 mib[2] = 0; /* protocol */ 254 mib[3] = 0; /* wildcard address family */ 255 mib[4] = NET_RT_DUMP; 256 mib[5] = 0; /* no flags */ 257 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 258 err(EX_OSERR, "route-sysctl-estimate"); 259 if ((buf = malloc(needed)) == NULL) 260 errx(EX_OSERR, "malloc failed"); 261 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 262 err(EX_OSERR, "route-sysctl-get"); 263 lim = buf + needed; 264 if (verbose) 265 (void) printf("Examining routing table from sysctl\n"); 266 seqno = 0; /* ??? */ 267 for (next = buf; next < lim; next += rtm->rtm_msglen) { 268 rtm = (struct rt_msghdr *)next; 269 if (verbose) 270 print_rtmsg(rtm, rtm->rtm_msglen); 271 if ((rtm->rtm_flags & RTF_GATEWAY) == 0) 272 continue; 273 if (af) { 274 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 275 276 if (sa->sa_family != af) 277 continue; 278 } 279 if (debugonly) 280 continue; 281 rtm->rtm_type = RTM_DELETE; 282 rtm->rtm_seq = seqno; 283 rlen = write(s, next, rtm->rtm_msglen); 284 if (rlen < (int)rtm->rtm_msglen) { 285 warn("write to routing socket"); 286 (void) printf("got only %d for rlen\n", rlen); 287 break; 288 } 289 seqno++; 290 if (qflag) 291 continue; 292 if (verbose) 293 print_rtmsg(rtm, rlen); 294 else { 295 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 296 (void) printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ? 297 routename(sa) : netname(sa)); 298 sa = (struct sockaddr *)(sa->sa_len + (char *)sa); 299 (void) printf("%-20.20s ", routename(sa)); 300 (void) printf("done\n"); 301 } 302 } 303 } 304 305 char * 306 routename(sa) 307 struct sockaddr *sa; 308 { 309 register char *cp; 310 static char line[MAXHOSTNAMELEN + 1]; 311 struct hostent *hp; 312 static char domain[MAXHOSTNAMELEN + 1]; 313 static int first = 1; 314 #ifdef NS 315 char *ns_print(); 316 #endif 317 318 if (first) { 319 first = 0; 320 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 321 (cp = index(domain, '.'))) { 322 domain[MAXHOSTNAMELEN] = '\0'; 323 (void) strcpy(domain, cp + 1); 324 } else 325 domain[0] = 0; 326 } 327 328 if (sa->sa_len == 0) 329 strcpy(line, "default"); 330 else switch (sa->sa_family) { 331 332 case AF_INET: 333 { struct in_addr in; 334 in = ((struct sockaddr_in *)sa)->sin_addr; 335 336 cp = 0; 337 if (in.s_addr == INADDR_ANY || sa->sa_len < 4) 338 cp = "default"; 339 if (cp == 0 && !nflag) { 340 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 341 AF_INET); 342 if (hp) { 343 if ((cp = index(hp->h_name, '.')) && 344 !strcmp(cp + 1, domain)) 345 *cp = 0; 346 cp = hp->h_name; 347 } 348 } 349 if (cp) { 350 strncpy(line, cp, sizeof(line) - 1); 351 line[sizeof(line) - 1] = '\0'; 352 } else { 353 /* XXX - why not inet_ntoa()? */ 354 #define C(x) (unsigned)((x) & 0xff) 355 in.s_addr = ntohl(in.s_addr); 356 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 357 C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr)); 358 } 359 break; 360 } 361 362 #ifdef INET6 363 case AF_INET6: 364 { struct sockaddr_in6 *sin6; 365 int gap; 366 367 sin6 = (struct sockaddr_in6 *)sa; 368 gap = sizeof(struct sockaddr_in6) - sin6->sin6_len; 369 if (gap > 0) 370 bzero((char *)(sin6) + sin6->sin6_len, gap); 371 (void) snprintf(line, sizeof(line), "%s", 372 inet_ntop(AF_INET6, &sin6->sin6_addr, 373 ntop_buf, sizeof(ntop_buf))); 374 } 375 #endif 376 377 case AF_APPLETALK: 378 (void) snprintf(line, sizeof(line), "atalk %s", 379 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); 380 break; 381 382 #ifdef NS 383 case AF_NS: 384 return (ns_print((struct sockaddr_ns *)sa)); 385 #endif 386 387 case AF_LINK: 388 return (link_ntoa((struct sockaddr_dl *)sa)); 389 390 default: 391 { u_short *s = (u_short *)sa; 392 u_short *slim = s + ((sa->sa_len + 1) >> 1); 393 char *cp = line + sprintf(line, "(%d)", sa->sa_family); 394 char *cpe = line + sizeof(line); 395 396 while (++s < slim && cp < cpe) /* start with sa->sa_data */ 397 cp += snprintf(cp, cpe - cp, " %x", *s); 398 break; 399 } 400 } 401 return (line); 402 } 403 404 /* 405 * Return the name of the network whose address is given. 406 * The address is assumed to be that of a net or subnet, not a host. 407 */ 408 char * 409 netname(sa) 410 struct sockaddr *sa; 411 { 412 char *cp = 0; 413 static char line[MAXHOSTNAMELEN + 1]; 414 struct netent *np = 0; 415 u_long net, mask; 416 register u_long i; 417 int subnetshift; 418 #ifdef NS 419 char *ns_print(); 420 #endif 421 422 switch (sa->sa_family) { 423 424 case AF_INET: 425 { struct in_addr in; 426 in = ((struct sockaddr_in *)sa)->sin_addr; 427 428 i = in.s_addr = ntohl(in.s_addr); 429 if (in.s_addr == 0) 430 cp = "default"; 431 else if (!nflag) { 432 if (IN_CLASSA(i)) { 433 mask = IN_CLASSA_NET; 434 subnetshift = 8; 435 } else if (IN_CLASSB(i)) { 436 mask = IN_CLASSB_NET; 437 subnetshift = 8; 438 } else { 439 mask = IN_CLASSC_NET; 440 subnetshift = 4; 441 } 442 /* 443 * If there are more bits than the standard mask 444 * would suggest, subnets must be in use. 445 * Guess at the subnet mask, assuming reasonable 446 * width subnet fields. 447 */ 448 while (in.s_addr &~ mask) 449 mask = (long)mask >> subnetshift; 450 net = in.s_addr & mask; 451 while ((mask & 1) == 0) 452 mask >>= 1, net >>= 1; 453 np = getnetbyaddr(net, AF_INET); 454 if (np) 455 cp = np->n_name; 456 } 457 if (cp) 458 strncpy(line, cp, sizeof(line)); 459 else if ((in.s_addr & 0xffffff) == 0) 460 (void) sprintf(line, "%u", C(in.s_addr >> 24)); 461 else if ((in.s_addr & 0xffff) == 0) 462 (void) sprintf(line, "%u.%u", C(in.s_addr >> 24), 463 C(in.s_addr >> 16)); 464 else if ((in.s_addr & 0xff) == 0) 465 (void) sprintf(line, "%u.%u.%u", C(in.s_addr >> 24), 466 C(in.s_addr >> 16), C(in.s_addr >> 8)); 467 else 468 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 469 C(in.s_addr >> 16), C(in.s_addr >> 8), 470 C(in.s_addr)); 471 break; 472 } 473 474 #ifdef INET6 475 case AF_INET6: 476 { struct in6_addr in6; 477 int gap; 478 479 in6 = ((struct sockaddr_in6 *)sa)->sin6_addr; 480 gap = sizeof(struct sockaddr_in6) - sa->sa_len; 481 if (gap > 0) 482 bzero((char *)(&in6 + 1) - gap, gap); 483 (void)snprintf(line, sizeof(line), "%s", 484 inet_ntop(AF_INET6, &in6, ntop_buf, 485 sizeof(ntop_buf))); 486 } 487 #endif 488 489 case AF_APPLETALK: 490 (void) snprintf(line, sizeof(line), "atalk %s", 491 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); 492 break; 493 494 #ifdef NS 495 case AF_NS: 496 return (ns_print((struct sockaddr_ns *)sa)); 497 break; 498 #endif 499 500 case AF_LINK: 501 return (link_ntoa((struct sockaddr_dl *)sa)); 502 503 504 default: 505 { u_short *s = (u_short *)sa->sa_data; 506 u_short *slim = s + ((sa->sa_len + 1)>>1); 507 char *cp = line + sprintf(line, "af %d:", sa->sa_family); 508 char *cpe = line + sizeof(line); 509 510 while (s < slim && cp < cpe) 511 cp += snprintf(cp, cpe - cp, " %x", *s++); 512 break; 513 } 514 } 515 return (line); 516 } 517 518 void 519 set_metric(value, key) 520 char *value; 521 int key; 522 { 523 int flag = 0; 524 u_long noval, *valp = &noval; 525 526 switch (key) { 527 #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break 528 caseof(K_MTU, RTV_MTU, rmx_mtu); 529 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); 530 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); 531 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); 532 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); 533 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); 534 caseof(K_RTT, RTV_RTT, rmx_rtt); 535 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); 536 } 537 rtm_inits |= flag; 538 if (lockrest || locking) 539 rt_metrics.rmx_locks |= flag; 540 if (locking) 541 locking = 0; 542 *valp = atoi(value); 543 } 544 545 void 546 newroute(argc, argv) 547 int argc; 548 register char **argv; 549 { 550 char *cmd, *dest = "", *gateway = "", *err; 551 int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC; 552 int key; 553 struct hostent *hp = 0; 554 555 if (uid) { 556 errx(EX_NOPERM, "must be root to alter routing table"); 557 } 558 cmd = argv[0]; 559 if (*cmd != 'g') 560 shutdown(s, 0); /* Don't want to read back our messages */ 561 while (--argc > 0) { 562 if (**(++argv)== '-') { 563 switch (key = keyword(1 + *argv)) { 564 case K_LINK: 565 af = AF_LINK; 566 aflen = sizeof(struct sockaddr_dl); 567 break; 568 case K_INET: 569 af = AF_INET; 570 aflen = sizeof(struct sockaddr_in); 571 break; 572 #ifdef INET6 573 case K_INET6: 574 af = AF_INET6; 575 aflen = sizeof(struct sockaddr_in6); 576 break; 577 #endif 578 case K_ATALK: 579 af = AF_APPLETALK; 580 aflen = sizeof(struct sockaddr_at); 581 break; 582 case K_SA: 583 af = PF_ROUTE; 584 aflen = sizeof(union sockunion); 585 break; 586 #ifdef NS 587 case K_XNS: 588 af = AF_NS; 589 aflen = sizeof(struct sockaddr_ns); 590 break; 591 #endif 592 case K_IFACE: 593 case K_INTERFACE: 594 iflag++; 595 break; 596 case K_NOSTATIC: 597 flags &= ~RTF_STATIC; 598 break; 599 case K_LLINFO: 600 flags |= RTF_LLINFO; 601 break; 602 case K_LOCK: 603 locking = 1; 604 break; 605 case K_LOCKREST: 606 lockrest = 1; 607 break; 608 case K_HOST: 609 forcehost++; 610 break; 611 case K_REJECT: 612 flags |= RTF_REJECT; 613 break; 614 case K_BLACKHOLE: 615 flags |= RTF_BLACKHOLE; 616 break; 617 case K_PROTO1: 618 flags |= RTF_PROTO1; 619 break; 620 case K_PROTO2: 621 flags |= RTF_PROTO2; 622 break; 623 case K_CLONING: 624 flags |= RTF_CLONING; 625 break; 626 case K_XRESOLVE: 627 flags |= RTF_XRESOLVE; 628 break; 629 case K_STATIC: 630 flags |= RTF_STATIC; 631 break; 632 case K_IFA: 633 if (!--argc) 634 usage((char *)NULL); 635 (void) getaddr(RTA_IFA, *++argv, 0); 636 break; 637 case K_IFP: 638 if (!--argc) 639 usage((char *)NULL); 640 (void) getaddr(RTA_IFP, *++argv, 0); 641 break; 642 case K_GENMASK: 643 if (!--argc) 644 usage((char *)NULL); 645 (void) getaddr(RTA_GENMASK, *++argv, 0); 646 break; 647 case K_GATEWAY: 648 if (!--argc) 649 usage((char *)NULL); 650 (void) getaddr(RTA_GATEWAY, *++argv, 0); 651 break; 652 case K_DST: 653 if (!--argc) 654 usage((char *)NULL); 655 ishost = getaddr(RTA_DST, *++argv, &hp); 656 dest = *argv; 657 break; 658 case K_NETMASK: 659 if (!--argc) 660 usage((char *)NULL); 661 (void) getaddr(RTA_NETMASK, *++argv, 0); 662 /* FALLTHROUGH */ 663 case K_NET: 664 forcenet++; 665 break; 666 case K_PREFIXLEN: 667 if (!--argc) 668 usage((char *)NULL); 669 if (prefixlen(*++argv) == -1) { 670 forcenet = 0; 671 ishost = 1; 672 } else { 673 forcenet = 1; 674 ishost = 0; 675 } 676 break; 677 case K_MTU: 678 case K_HOPCOUNT: 679 case K_EXPIRE: 680 case K_RECVPIPE: 681 case K_SENDPIPE: 682 case K_SSTHRESH: 683 case K_RTT: 684 case K_RTTVAR: 685 if (!--argc) 686 usage((char *)NULL); 687 set_metric(*++argv, key); 688 break; 689 default: 690 usage(1+*argv); 691 } 692 } else { 693 if ((rtm_addrs & RTA_DST) == 0) { 694 dest = *argv; 695 ishost = getaddr(RTA_DST, *argv, &hp); 696 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 697 gateway = *argv; 698 (void) getaddr(RTA_GATEWAY, *argv, &hp); 699 } else { 700 (void) getaddr(RTA_NETMASK, *argv, 0); 701 } 702 } 703 } 704 if (forcehost) { 705 ishost = 1; 706 #ifdef INET6 707 if (af == AF_INET6) { 708 rtm_addrs &= ~RTA_NETMASK; 709 memset((void *)&so_mask, 0, sizeof(so_mask)); 710 } 711 #endif 712 } 713 if (forcenet) 714 ishost = 0; 715 flags |= RTF_UP; 716 if (ishost) 717 flags |= RTF_HOST; 718 if (iflag == 0) 719 flags |= RTF_GATEWAY; 720 for (attempts = 1; ; attempts++) { 721 errno = 0; 722 if ((ret = rtmsg(*cmd, flags)) == 0) 723 break; 724 if (errno != ENETUNREACH && errno != ESRCH) 725 break; 726 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 727 hp->h_addr_list++; 728 bcopy(hp->h_addr_list[0], &so_gate.sin.sin_addr, 729 MIN(hp->h_length, sizeof(so_gate.sin.sin_addr))); 730 } else 731 break; 732 } 733 if (*cmd == 'g') 734 exit(0); 735 oerrno = errno; 736 (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest); 737 if (*gateway) { 738 (void) printf(": gateway %s", gateway); 739 if (attempts > 1 && ret == 0 && af == AF_INET) 740 (void) printf(" (%s)", 741 inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr)); 742 } 743 if (ret == 0) 744 (void) printf("\n"); 745 else { 746 switch (oerrno) { 747 case ESRCH: 748 err = "not in table"; 749 break; 750 case EBUSY: 751 err = "entry in use"; 752 break; 753 case ENOBUFS: 754 err = "routing table overflow"; 755 break; 756 default: 757 err = strerror(oerrno); 758 break; 759 } 760 (void) printf(": %s\n", err); 761 } 762 } 763 764 void 765 inet_makenetandmask(net, sin, bits) 766 u_long net, bits; 767 register struct sockaddr_in *sin; 768 { 769 u_long addr, mask = 0; 770 register char *cp; 771 772 rtm_addrs |= RTA_NETMASK; 773 if (net == 0) 774 mask = addr = 0; 775 else if (bits) { 776 addr = net; 777 mask = 0xffffffff << (32 - bits); 778 } else if (net < 128) { 779 addr = net << IN_CLASSA_NSHIFT; 780 mask = IN_CLASSA_NET; 781 } else if (net < 65536) { 782 addr = net << IN_CLASSB_NSHIFT; 783 mask = IN_CLASSB_NET; 784 } else if (net < 16777216L) { 785 addr = net << IN_CLASSC_NSHIFT; 786 mask = IN_CLASSC_NET; 787 } else { 788 addr = net; 789 if ((addr & IN_CLASSA_HOST) == 0) 790 mask = IN_CLASSA_NET; 791 else if ((addr & IN_CLASSB_HOST) == 0) 792 mask = IN_CLASSB_NET; 793 else if ((addr & IN_CLASSC_HOST) == 0) 794 mask = IN_CLASSC_NET; 795 else 796 mask = -1; 797 } 798 sin->sin_addr.s_addr = htonl(addr); 799 sin = &so_mask.sin; 800 sin->sin_addr.s_addr = htonl(mask); 801 sin->sin_len = 0; 802 sin->sin_family = 0; 803 cp = (char *)(&sin->sin_addr + 1); 804 while (*--cp == 0 && cp > (char *)sin) 805 ; 806 sin->sin_len = 1 + cp - (char *)sin; 807 } 808 809 /* 810 * Interpret an argument as a network address of some kind, 811 * returning 1 if a host address, 0 if a network address. 812 */ 813 int 814 getaddr(which, s, hpp) 815 int which; 816 char *s; 817 struct hostent **hpp; 818 { 819 register sup su; 820 struct hostent *hp; 821 struct netent *np; 822 u_long val; 823 char *q,qs; 824 int afamily; /* local copy of af so we can change it */ 825 826 if (af == 0) { 827 af = AF_INET; 828 aflen = sizeof(struct sockaddr_in); 829 } 830 afamily = af; 831 rtm_addrs |= which; 832 switch (which) { 833 case RTA_DST: 834 su = &so_dst; 835 break; 836 case RTA_GATEWAY: 837 su = &so_gate; 838 if (iflag) { 839 #define MAX_IFACES 400 840 int sock; 841 struct ifreq iflist[MAX_IFACES]; 842 struct ifconf ifconf; 843 struct ifreq *ifr, *ifr_end; 844 struct sockaddr_dl *dl, *sdl = NULL; 845 846 /* Get socket */ 847 if ((sock = socket(PF_INET, SOCK_DGRAM, 0)) < 0) 848 err(1, "socket"); 849 850 /* Get interface list */ 851 ifconf.ifc_req = iflist; 852 ifconf.ifc_len = sizeof(iflist); 853 if (ioctl(sock, SIOCGIFCONF, &ifconf) < 0) 854 err(1, "ioctl(SIOCGIFCONF)"); 855 close(sock); 856 857 /* Look for this interface in the list */ 858 for (ifr = ifconf.ifc_req, 859 ifr_end = (struct ifreq *) 860 (ifconf.ifc_buf + ifconf.ifc_len); 861 ifr < ifr_end; 862 ifr = (struct ifreq *) ((char *) &ifr->ifr_addr 863 + MAX(ifr->ifr_addr.sa_len, 864 sizeof(ifr->ifr_addr)))) { 865 dl = (struct sockaddr_dl *)&ifr->ifr_addr; 866 if (ifr->ifr_addr.sa_family == AF_LINK 867 && (ifr->ifr_flags & IFF_POINTOPOINT) 868 && !strncmp(s, dl->sdl_data, dl->sdl_nlen) 869 && s[dl->sdl_nlen] == 0) { 870 sdl = dl; 871 break; 872 } 873 } 874 875 /* If we found it, then use it */ 876 if (sdl) { 877 su->sdl = *sdl; 878 return(1); 879 } 880 } 881 break; 882 case RTA_NETMASK: 883 su = &so_mask; 884 break; 885 case RTA_GENMASK: 886 su = &so_genmask; 887 break; 888 case RTA_IFP: 889 su = &so_ifp; 890 afamily = AF_LINK; 891 break; 892 case RTA_IFA: 893 su = &so_ifa; 894 break; 895 default: 896 usage("internal error"); 897 /*NOTREACHED*/ 898 } 899 su->sa.sa_len = aflen; 900 su->sa.sa_family = afamily; /* cases that don't want it have left already */ 901 if (strcmp(s, "default") == 0) { 902 /* 903 * Default is net 0.0.0.0/0 904 */ 905 switch (which) { 906 case RTA_DST: 907 forcenet++; 908 /* bzero(su, sizeof(*su)); *//* for readability */ 909 (void) getaddr(RTA_NETMASK, s, 0); 910 break; 911 case RTA_NETMASK: 912 case RTA_GENMASK: 913 /* bzero(su, sizeof(*su)); *//* for readability */ 914 } 915 return (0); 916 } 917 switch (afamily) { 918 #ifdef INET6 919 case AF_INET6: 920 if (inet_pton(AF_INET6, s, (void *)&su->sin6.sin6_addr) == -1) { 921 (void) fprintf(stderr, "%s: bad value\n", s); 922 exit(1); 923 } 924 return 0; 925 #endif 926 927 #ifdef NS 928 case AF_NS: 929 if (which == RTA_DST) { 930 extern short ns_bh[3]; 931 struct sockaddr_ns *sms = &(so_mask.sns); 932 bzero((char *)sms, sizeof(*sms)); 933 sms->sns_family = 0; 934 sms->sns_len = 6; 935 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 936 rtm_addrs |= RTA_NETMASK; 937 } 938 su->sns.sns_addr = ns_addr(s); 939 return (!ns_nullhost(su->sns.sns_addr)); 940 #endif 941 942 943 case AF_APPLETALK: 944 if (!atalk_aton(s, &su->sat.sat_addr)) 945 errx(EX_NOHOST, "bad address: %s", s); 946 rtm_addrs |= RTA_NETMASK; 947 return(forcehost || su->sat.sat_addr.s_node != 0); 948 949 case AF_LINK: 950 link_addr(s, &su->sdl); 951 return (1); 952 953 954 case PF_ROUTE: 955 su->sa.sa_len = sizeof(*su); 956 sockaddr(s, &su->sa); 957 return (1); 958 959 case AF_INET: 960 default: 961 break; 962 } 963 964 if (hpp == NULL) 965 hpp = &hp; 966 *hpp = NULL; 967 968 q = strchr(s,'/'); 969 if (q && which == RTA_DST) { 970 qs = *q; 971 *q = '\0'; 972 if (((val = inet_addr(s)) != INADDR_NONE)) { 973 inet_makenetandmask( 974 htonl(val), &su->sin, strtoul(q+1, 0, 0)); 975 return (0); 976 } 977 *q =qs; 978 } 979 if (((val = inet_addr(s)) != INADDR_NONE) && 980 (which != RTA_DST || forcenet == 0)) { 981 su->sin.sin_addr.s_addr = val; 982 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 983 return (1); 984 else { 985 val = ntohl(val); 986 goto netdone; 987 } 988 } 989 if ((val = inet_network(s)) != INADDR_NONE || 990 (forcehost == 0 && (np = getnetbyname(s)) != NULL && 991 (val = np->n_net) != 0)) { 992 netdone: 993 if (which == RTA_DST) 994 inet_makenetandmask(val, &su->sin, 0); 995 return (0); 996 } 997 hp = gethostbyname(s); 998 if (hp) { 999 *hpp = hp; 1000 su->sin.sin_family = hp->h_addrtype; 1001 bcopy(hp->h_addr, (char *)&su->sin.sin_addr, 1002 MIN(hp->h_length, sizeof(su->sin.sin_addr))); 1003 return (1); 1004 } 1005 errx(EX_NOHOST, "bad address: %s", s); 1006 } 1007 1008 int 1009 prefixlen(s) 1010 char *s; 1011 { 1012 int len = atoi(s), q, r; 1013 int max; 1014 char *p; 1015 1016 rtm_addrs |= RTA_NETMASK; 1017 switch (af) { 1018 #ifdef INET6 1019 case AF_INET6: 1020 max = 128; 1021 p = (char *)&so_mask.sin6.sin6_addr; 1022 break; 1023 #endif 1024 case AF_INET: 1025 max = 32; 1026 p = (char *)&so_mask.sin.sin_addr; 1027 break; 1028 default: 1029 (void) fprintf(stderr, "prefixlen not supported in this af\n"); 1030 exit(1); 1031 /*NOTREACHED*/ 1032 } 1033 1034 if (len < 0 || max < len) { 1035 (void) fprintf(stderr, "%s: bad value\n", s); 1036 exit(1); 1037 } 1038 1039 q = len >> 3; 1040 r = len & 7; 1041 so_mask.sa.sa_family = af; 1042 so_mask.sa.sa_len = aflen; 1043 memset((void *)p, 0, max / 8); 1044 if (q > 0) 1045 memset((void *)p, 0xff, q); 1046 if (r > 0) 1047 *((u_char *)p + q) = (0xff00 >> r) & 0xff; 1048 if (len == max) 1049 return -1; 1050 else 1051 return len; 1052 } 1053 1054 #ifdef NS 1055 short ns_nullh[] = {0,0,0}; 1056 short ns_bh[] = {-1,-1,-1}; 1057 1058 char * 1059 ns_print(sns) 1060 struct sockaddr_ns *sns; 1061 { 1062 struct ns_addr work; 1063 union { union ns_net net_e; u_long long_e; } net; 1064 u_short port; 1065 static char mybuf[50+MAXHOSTNAMELEN], cport[10], chost[25]; 1066 char *host = ""; 1067 register char *p; 1068 register u_char *q; 1069 1070 work = sns->sns_addr; 1071 port = ntohs(work.x_port); 1072 work.x_port = 0; 1073 net.net_e = work.x_net; 1074 if (ns_nullhost(work) && net.long_e == 0) { 1075 if (!port) 1076 return ("*.*"); 1077 (void) sprintf(mybuf, "*.%XH", port); 1078 return (mybuf); 1079 } 1080 1081 if (bcmp((char *)ns_bh, (char *)work.x_host.c_host, 6) == 0) 1082 host = "any"; 1083 else if (bcmp((char *)ns_nullh, (char *)work.x_host.c_host, 6) == 0) 1084 host = "*"; 1085 else { 1086 q = work.x_host.c_host; 1087 (void) sprintf(chost, "%02X%02X%02X%02X%02X%02XH", 1088 q[0], q[1], q[2], q[3], q[4], q[5]); 1089 for (p = chost; *p == '0' && p < chost + 12; p++) 1090 /* void */; 1091 host = p; 1092 } 1093 if (port) 1094 (void) sprintf(cport, ".%XH", htons(port)); 1095 else 1096 *cport = 0; 1097 1098 (void) snprintf(mybuf, sizeof(mybuf), "%lxH.%s%s", 1099 (unsigned long)ntohl(net.long_e), 1100 host, cport); 1101 return (mybuf); 1102 } 1103 #endif 1104 1105 void 1106 interfaces() 1107 { 1108 size_t needed; 1109 int mib[6]; 1110 char *buf, *lim, *next; 1111 register struct rt_msghdr *rtm; 1112 1113 mib[0] = CTL_NET; 1114 mib[1] = PF_ROUTE; 1115 mib[2] = 0; /* protocol */ 1116 mib[3] = 0; /* wildcard address family */ 1117 mib[4] = NET_RT_IFLIST; 1118 mib[5] = 0; /* no flags */ 1119 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 1120 err(EX_OSERR, "route-sysctl-estimate"); 1121 if ((buf = malloc(needed)) == NULL) 1122 errx(EX_OSERR, "malloc failed"); 1123 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 1124 err(EX_OSERR, "actual retrieval of interface table"); 1125 lim = buf + needed; 1126 for (next = buf; next < lim; next += rtm->rtm_msglen) { 1127 rtm = (struct rt_msghdr *)next; 1128 print_rtmsg(rtm, rtm->rtm_msglen); 1129 } 1130 } 1131 1132 void 1133 monitor() 1134 { 1135 int n; 1136 char msg[2048]; 1137 1138 verbose = 1; 1139 if (debugonly) { 1140 interfaces(); 1141 exit(0); 1142 } 1143 for(;;) { 1144 time_t now; 1145 n = read(s, msg, 2048); 1146 now = time(NULL); 1147 (void) printf("got message of size %d on %s", n, ctime(&now)); 1148 print_rtmsg((struct rt_msghdr *)msg, n); 1149 } 1150 } 1151 1152 struct { 1153 struct rt_msghdr m_rtm; 1154 char m_space[512]; 1155 } m_rtmsg; 1156 1157 int 1158 rtmsg(cmd, flags) 1159 int cmd, flags; 1160 { 1161 static int seq; 1162 int rlen; 1163 register char *cp = m_rtmsg.m_space; 1164 register int l; 1165 1166 #define NEXTADDR(w, u) \ 1167 if (rtm_addrs & (w)) {\ 1168 l = ROUNDUP(u.sa.sa_len); bcopy((char *)&(u), cp, l); cp += l;\ 1169 if (verbose) sodump(&(u),"u");\ 1170 } 1171 1172 errno = 0; 1173 bzero((char *)&m_rtmsg, sizeof(m_rtmsg)); 1174 if (cmd == 'a') 1175 cmd = RTM_ADD; 1176 else if (cmd == 'c') 1177 cmd = RTM_CHANGE; 1178 else if (cmd == 'g') { 1179 cmd = RTM_GET; 1180 if (so_ifp.sa.sa_family == 0) { 1181 so_ifp.sa.sa_family = AF_LINK; 1182 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1183 rtm_addrs |= RTA_IFP; 1184 } 1185 } else 1186 cmd = RTM_DELETE; 1187 #define rtm m_rtmsg.m_rtm 1188 rtm.rtm_type = cmd; 1189 rtm.rtm_flags = flags; 1190 rtm.rtm_version = RTM_VERSION; 1191 rtm.rtm_seq = ++seq; 1192 rtm.rtm_addrs = rtm_addrs; 1193 rtm.rtm_rmx = rt_metrics; 1194 rtm.rtm_inits = rtm_inits; 1195 1196 if (rtm_addrs & RTA_NETMASK) 1197 mask_addr(); 1198 NEXTADDR(RTA_DST, so_dst); 1199 NEXTADDR(RTA_GATEWAY, so_gate); 1200 NEXTADDR(RTA_NETMASK, so_mask); 1201 NEXTADDR(RTA_GENMASK, so_genmask); 1202 NEXTADDR(RTA_IFP, so_ifp); 1203 NEXTADDR(RTA_IFA, so_ifa); 1204 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1205 if (verbose) 1206 print_rtmsg(&rtm, l); 1207 if (debugonly) 1208 return (0); 1209 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) { 1210 warn("writing to routing socket"); 1211 return (-1); 1212 } 1213 if (cmd == RTM_GET) { 1214 do { 1215 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1216 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1217 if (l < 0) 1218 warn("read from routing socket"); 1219 else 1220 print_getmsg(&rtm, l); 1221 } 1222 #undef rtm 1223 return (0); 1224 } 1225 1226 void 1227 mask_addr() 1228 { 1229 int olen = so_mask.sa.sa_len; 1230 register char *cp1 = olen + (char *)&so_mask, *cp2; 1231 1232 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1233 if (*--cp1 != 0) { 1234 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1235 break; 1236 } 1237 if ((rtm_addrs & RTA_DST) == 0) 1238 return; 1239 switch (so_dst.sa.sa_family) { 1240 #ifdef NS 1241 case AF_NS: 1242 #endif 1243 case AF_INET: 1244 #ifdef INET6 1245 case AF_INET6: 1246 #endif 1247 case AF_APPLETALK: 1248 case 0: 1249 return; 1250 } 1251 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; 1252 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; 1253 while (cp2 > cp1) 1254 *--cp2 = 0; 1255 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; 1256 while (cp1 > so_dst.sa.sa_data) 1257 *--cp1 &= *--cp2; 1258 } 1259 1260 char *msgtypes[] = { 1261 "", 1262 "RTM_ADD: Add Route", 1263 "RTM_DELETE: Delete Route", 1264 "RTM_CHANGE: Change Metrics or flags", 1265 "RTM_GET: Report Metrics", 1266 "RTM_LOSING: Kernel Suspects Partitioning", 1267 "RTM_REDIRECT: Told to use different route", 1268 "RTM_MISS: Lookup failed on this address", 1269 "RTM_LOCK: fix specified metrics", 1270 "RTM_OLDADD: caused by SIOCADDRT", 1271 "RTM_OLDDEL: caused by SIOCDELRT", 1272 "RTM_RESOLVE: Route created by cloning", 1273 "RTM_NEWADDR: address being added to iface", 1274 "RTM_DELADDR: address being removed from iface", 1275 "RTM_IFINFO: iface status change", 1276 "RTM_NEWMADDR: new multicast group membership on iface", 1277 "RTM_DELMADDR: multicast group membership removed from iface", 1278 0, 1279 }; 1280 1281 char metricnames[] = 1282 "\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount" 1283 "\1mtu"; 1284 char routeflags[] = 1285 "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT" 1286 "\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016b016" 1287 "\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3\024CHAINDELETE" 1288 "\025PINNED\026LOCAL\027BROADCAST\030MULTICAST"; 1289 char ifnetflags[] = 1290 "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP" 1291 "\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1" 1292 "\017LINK2\020MULTICAST"; 1293 char addrnames[] = 1294 "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1295 1296 void 1297 print_rtmsg(rtm, msglen) 1298 register struct rt_msghdr *rtm; 1299 int msglen; 1300 { 1301 struct if_msghdr *ifm; 1302 struct ifa_msghdr *ifam; 1303 #ifdef RTM_NEWMADDR 1304 struct ifma_msghdr *ifmam; 1305 #endif 1306 1307 if (verbose == 0) 1308 return; 1309 if (rtm->rtm_version != RTM_VERSION) { 1310 (void) printf("routing message version %d not understood\n", 1311 rtm->rtm_version); 1312 return; 1313 } 1314 (void)printf("%s: len %d, ", msgtypes[rtm->rtm_type], rtm->rtm_msglen); 1315 switch (rtm->rtm_type) { 1316 case RTM_IFINFO: 1317 ifm = (struct if_msghdr *)rtm; 1318 (void) printf("if# %d, flags:", ifm->ifm_index); 1319 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1320 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1321 break; 1322 case RTM_NEWADDR: 1323 case RTM_DELADDR: 1324 ifam = (struct ifa_msghdr *)rtm; 1325 (void) printf("metric %d, flags:", ifam->ifam_metric); 1326 bprintf(stdout, ifam->ifam_flags, routeflags); 1327 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1328 break; 1329 #ifdef RTM_NEWMADDR 1330 case RTM_NEWMADDR: 1331 case RTM_DELMADDR: 1332 ifmam = (struct ifma_msghdr *)rtm; 1333 pmsg_addrs((char *)(ifmam + 1), ifmam->ifmam_addrs); 1334 break; 1335 #endif 1336 default: 1337 (void) printf("pid: %ld, seq %d, errno %d, flags:", 1338 (long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1339 bprintf(stdout, rtm->rtm_flags, routeflags); 1340 pmsg_common(rtm); 1341 } 1342 } 1343 1344 void 1345 print_getmsg(rtm, msglen) 1346 register struct rt_msghdr *rtm; 1347 int msglen; 1348 { 1349 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL; 1350 struct sockaddr_dl *ifp = NULL; 1351 register struct sockaddr *sa; 1352 register char *cp; 1353 register int i; 1354 1355 (void) printf(" route to: %s\n", routename(&so_dst)); 1356 if (rtm->rtm_version != RTM_VERSION) { 1357 warnx("routing message version %d not understood", 1358 rtm->rtm_version); 1359 return; 1360 } 1361 if (rtm->rtm_msglen > msglen) { 1362 warnx("message length mismatch, in packet %d, returned %d", 1363 rtm->rtm_msglen, msglen); 1364 } 1365 if (rtm->rtm_errno) { 1366 errno = rtm->rtm_errno; 1367 warn("message indicates error %d", errno); 1368 return; 1369 } 1370 cp = ((char *)(rtm + 1)); 1371 if (rtm->rtm_addrs) 1372 for (i = 1; i; i <<= 1) 1373 if (i & rtm->rtm_addrs) { 1374 sa = (struct sockaddr *)cp; 1375 switch (i) { 1376 case RTA_DST: 1377 dst = sa; 1378 break; 1379 case RTA_GATEWAY: 1380 gate = sa; 1381 break; 1382 case RTA_NETMASK: 1383 mask = sa; 1384 break; 1385 case RTA_IFP: 1386 if (sa->sa_family == AF_LINK && 1387 ((struct sockaddr_dl *)sa)->sdl_nlen) 1388 ifp = (struct sockaddr_dl *)sa; 1389 break; 1390 } 1391 ADVANCE(cp, sa); 1392 } 1393 if (dst && mask) 1394 mask->sa_family = dst->sa_family; /* XXX */ 1395 if (dst) 1396 (void)printf("destination: %s\n", routename(dst)); 1397 if (mask) { 1398 int savenflag = nflag; 1399 1400 nflag = 1; 1401 (void)printf(" mask: %s\n", routename(mask)); 1402 nflag = savenflag; 1403 } 1404 if (gate && rtm->rtm_flags & RTF_GATEWAY) 1405 (void)printf(" gateway: %s\n", routename(gate)); 1406 if (ifp) 1407 (void)printf(" interface: %.*s\n", 1408 ifp->sdl_nlen, ifp->sdl_data); 1409 (void)printf(" flags: "); 1410 bprintf(stdout, rtm->rtm_flags, routeflags); 1411 1412 #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') 1413 #define msec(u) (((u) + 500) / 1000) /* usec to msec */ 1414 1415 (void) printf("\n%s\n", "\ 1416 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire"); 1417 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); 1418 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); 1419 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); 1420 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); 1421 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR)); 1422 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT)); 1423 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); 1424 if (rtm->rtm_rmx.rmx_expire) 1425 rtm->rtm_rmx.rmx_expire -= time(0); 1426 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); 1427 #undef lock 1428 #undef msec 1429 #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) 1430 if (verbose) 1431 pmsg_common(rtm); 1432 else if (rtm->rtm_addrs &~ RTA_IGN) { 1433 (void) printf("sockaddrs: "); 1434 bprintf(stdout, rtm->rtm_addrs, addrnames); 1435 putchar('\n'); 1436 } 1437 #undef RTA_IGN 1438 } 1439 1440 void 1441 pmsg_common(rtm) 1442 register struct rt_msghdr *rtm; 1443 { 1444 (void) printf("\nlocks: "); 1445 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1446 (void) printf(" inits: "); 1447 bprintf(stdout, rtm->rtm_inits, metricnames); 1448 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 1449 } 1450 1451 void 1452 pmsg_addrs(cp, addrs) 1453 char *cp; 1454 int addrs; 1455 { 1456 register struct sockaddr *sa; 1457 int i; 1458 1459 if (addrs == 0) 1460 return; 1461 (void) printf("\nsockaddrs: "); 1462 bprintf(stdout, addrs, addrnames); 1463 (void) putchar('\n'); 1464 for (i = 1; i; i <<= 1) 1465 if (i & addrs) { 1466 sa = (struct sockaddr *)cp; 1467 (void) printf(" %s", routename(sa)); 1468 ADVANCE(cp, sa); 1469 } 1470 (void) putchar('\n'); 1471 (void) fflush(stdout); 1472 } 1473 1474 void 1475 bprintf(fp, b, s) 1476 register FILE *fp; 1477 register int b; 1478 register u_char *s; 1479 { 1480 register int i; 1481 int gotsome = 0; 1482 1483 if (b == 0) 1484 return; 1485 while ((i = *s++) != 0) { 1486 if (b & (1 << (i-1))) { 1487 if (gotsome == 0) 1488 i = '<'; 1489 else 1490 i = ','; 1491 (void) putc(i, fp); 1492 gotsome = 1; 1493 for (; (i = *s) > 32; s++) 1494 (void) putc(i, fp); 1495 } else 1496 while (*s > 32) 1497 s++; 1498 } 1499 if (gotsome) 1500 (void) putc('>', fp); 1501 } 1502 1503 int 1504 keyword(cp) 1505 char *cp; 1506 { 1507 register struct keytab *kt = keywords; 1508 1509 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 1510 kt++; 1511 return kt->kt_i; 1512 } 1513 1514 void 1515 sodump(su, which) 1516 register sup su; 1517 char *which; 1518 { 1519 switch (su->sa.sa_family) { 1520 case AF_LINK: 1521 (void) printf("%s: link %s; ", 1522 which, link_ntoa(&su->sdl)); 1523 break; 1524 case AF_INET: 1525 (void) printf("%s: inet %s; ", 1526 which, inet_ntoa(su->sin.sin_addr)); 1527 break; 1528 case AF_APPLETALK: 1529 (void) printf("%s: atalk %s; ", 1530 which, atalk_ntoa(su->sat.sat_addr)); 1531 break; 1532 #ifdef NS 1533 case AF_NS: 1534 (void) printf("%s: xns %s; ", 1535 which, ns_ntoa(su->sns.sns_addr)); 1536 break; 1537 #endif 1538 } 1539 (void) fflush(stdout); 1540 } 1541 1542 /* States*/ 1543 #define VIRGIN 0 1544 #define GOTONE 1 1545 #define GOTTWO 2 1546 /* Inputs */ 1547 #define DIGIT (4*0) 1548 #define END (4*1) 1549 #define DELIM (4*2) 1550 1551 void 1552 sockaddr(addr, sa) 1553 register char *addr; 1554 register struct sockaddr *sa; 1555 { 1556 register char *cp = (char *)sa; 1557 int size = sa->sa_len; 1558 char *cplim = cp + size; 1559 register int byte = 0, state = VIRGIN, new = 0 /* foil gcc */; 1560 1561 bzero(cp, size); 1562 cp++; 1563 do { 1564 if ((*addr >= '0') && (*addr <= '9')) { 1565 new = *addr - '0'; 1566 } else if ((*addr >= 'a') && (*addr <= 'f')) { 1567 new = *addr - 'a' + 10; 1568 } else if ((*addr >= 'A') && (*addr <= 'F')) { 1569 new = *addr - 'A' + 10; 1570 } else if (*addr == 0) 1571 state |= END; 1572 else 1573 state |= DELIM; 1574 addr++; 1575 switch (state /* | INPUT */) { 1576 case GOTTWO | DIGIT: 1577 *cp++ = byte; /*FALLTHROUGH*/ 1578 case VIRGIN | DIGIT: 1579 state = GOTONE; byte = new; continue; 1580 case GOTONE | DIGIT: 1581 state = GOTTWO; byte = new + (byte << 4); continue; 1582 default: /* | DELIM */ 1583 state = VIRGIN; *cp++ = byte; byte = 0; continue; 1584 case GOTONE | END: 1585 case GOTTWO | END: 1586 *cp++ = byte; /* FALLTHROUGH */ 1587 case VIRGIN | END: 1588 break; 1589 } 1590 break; 1591 } while (cp < cplim); 1592 sa->sa_len = cp - (char *)sa; 1593 } 1594 1595 int 1596 atalk_aton(const char *text, struct at_addr *addr) 1597 { 1598 u_int net, node; 1599 1600 if (sscanf(text, "%u.%u", &net, &node) != 2 1601 || net > 0xffff || node > 0xff) 1602 return(0); 1603 addr->s_net = htons(net); 1604 addr->s_node = node; 1605 return(1); 1606 } 1607 1608 char * 1609 atalk_ntoa(struct at_addr at) 1610 { 1611 static char buf[20]; 1612 1613 (void) snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node); 1614 return(buf); 1615 } 1616