route.c revision 17265
1125635Skientzle/* 2133244Skientzle * 3151275Skientzle * Copyright (c) 1983, 1989, 1991, 1993 4152285Sru * The Regents of the University of California. All rights reserved. 5152285Sru * 6133244Skientzle * Redistribution and use in source and binary forms, with or without 7156417Skientzle * modification, are permitted provided that the following conditions 8156417Skientzle * are met: 9156417Skientzle * 1. Redistributions of source code must retain the above copyright 10156417Skientzle * notice, this list of conditions and the following disclaimer. 11156417Skientzle * 2. Redistributions in binary form must reproduce the above copyright 12158203Skientzle * notice, this list of conditions and the following disclaimer in the 13156417Skientzle * documentation and/or other materials provided with the distribution. 14156417Skientzle * 3. All advertising materials mentioning features or use of this software 15151275Skientzle * must display the following acknowledgement: 16164013Skientzle * This product includes software developed by the University of 17164013Skientzle * California, Berkeley and its contributors. 18164013Skientzle * 4. Neither the name of the University nor the names of its contributors 19151275Skientzle * may be used to endorse or promote products derived from this software 20133244Skientzle * without specific prior written permission. 21133244Skientzle * 22133244Skientzle * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23133244Skientzle * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24151275Skientzle * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25133244Skientzle * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26133244Skientzle * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27133244Skientzle * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28133244Skientzle * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29133244Skientzle * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30133244Skientzle * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31151275Skientzle * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32133244Skientzle * SUCH DAMAGE. 33133244Skientzle */ 34156417Skientzle 35162028Skientzle#ifndef lint 36156417Skientzlestatic const char copyright[] = 37156417Skientzle"@(#) Copyright (c) 1983, 1989, 1991, 1993\n\ 38156417Skientzle The Regents of the University of California. All rights reserved.\n"; 39156417Skientzle#endif /* not lint */ 40156417Skientzle 41156417Skientzle#ifndef lint 42162028Skientzle/* 43156417Skientzlestatic char sccsid[] = "@(#)route.c 8.3 (Berkeley) 3/19/94"; 44156417Skientzle*/ 45156417Skientzlestatic const char rcsid[] = 46156417Skientzle "$Id: route.c,v 1.10 1996/07/23 01:18:47 julian Exp $"; 47156417Skientzle#endif /* not lint */ 48156417Skientzle 49156417Skientzle#include <sys/param.h> 50156417Skientzle#include <sys/file.h> 51133244Skientzle#include <sys/socket.h> 52133244Skientzle#include <sys/ioctl.h> 53133244Skientzle#include <sys/mbuf.h> 54133244Skientzle#include <sys/sysctl.h> 55133244Skientzle 56133244Skientzle#include <net/if.h> 57164448Skientzle#include <net/route.h> 58133244Skientzle#include <net/if_dl.h> 59133244Skientzle#include <netinet/in.h> 60133244Skientzle#include <netatalk/at.h> 61133244Skientzle#ifdef NS 62133244Skientzle#include <netns/ns.h> 63133244Skientzle#endif 64133244Skientzle#ifdef ISO 65139565Skientzle#include <netiso/iso.h> 66133244Skientzle#endif 67140790Skientzle#ifdef CCITT 68133244Skientzle#include <netccitt/x25.h> 69133244Skientzle#endif 70133244Skientzle#include <arpa/inet.h> 71133244Skientzle#include <netdb.h> 72133244Skientzle 73164448Skientzle#include <errno.h> 74133244Skientzle#include <unistd.h> 75133244Skientzle#include <stdio.h> 76133244Skientzle#include <ctype.h> 77133244Skientzle#include <stdlib.h> 78133244Skientzle#include <string.h> 79133244Skientzle#include <paths.h> 80133244Skientzle#include <err.h> 81133244Skientzle#include <sysexits.h> 82133244Skientzle 83133244Skientzlestruct keytab { 84151275Skientzle char *kt_cp; 85133244Skientzle int kt_i; 86133244Skientzle} keywords[] = { 87133244Skientzle#include "keywords.h" 88133244Skientzle {0, 0} 89133244Skientzle}; 90133244Skientzle 91133244Skientzlestruct ortentry route; 92133244Skientzleunion sockunion { 93151275Skientzle struct sockaddr sa; 94133244Skientzle struct sockaddr_in sin; 95133244Skientzle struct sockaddr_at sat; 96133244Skientzle#ifdef NS 97133244Skientzle struct sockaddr_ns sns; 98133244Skientzle#endif 99133244Skientzle#ifdef ISO 100133244Skientzle struct sockaddr_iso siso; 101133244Skientzle#endif 102133244Skientzle struct sockaddr_dl sdl; 103133244Skientzle#ifdef CCITT 104133244Skientzle struct sockaddr_x25 sx25; 105133244Skientzle#endif 106133244Skientzle} so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; 107133244Skientzle 108133244Skientzletypedef union sockunion *sup; 109133244Skientzleint pid, rtm_addrs, uid; 110133244Skientzleint s; 111133244Skientzleint forcehost, forcenet, doflush, nflag, af, qflag, tflag, keyword(); 112133244Skientzleint iflag, verbose, aflen = sizeof (struct sockaddr_in); 113133244Skientzleint locking, lockrest, debugonly; 114133244Skientzlestruct rt_metrics rt_metrics; 115133244Skientzleu_long rtm_inits; 116133244Skientzlestruct in_addr inet_makeaddr(); 117133244Skientzleint atalk_aton __P((const char *, struct at_addr *)); 118133244Skientzlechar *atalk_ntoa __P((struct at_addr)); 119133244Skientzlechar *routename(), *netname(); 120133244Skientzlevoid flushroutes(), newroute(), monitor(), sockaddr(), sodump(), bprintf(); 121133244Skientzlevoid print_getmsg(), print_rtmsg(), pmsg_common(), pmsg_addrs(), mask_addr(); 122133244Skientzleint getaddr(), rtmsg(), x25_makemask(); 123133244Skientzleextern char *inet_ntoa(), *iso_ntoa(), *link_ntoa(); 124133244Skientzle#ifdef CCITT 125133244Skientzleextern int ccitt_addr __P((char *, struct sockaddr_x25 *)); 126133244Skientzle#endif 127133244Skientzle 128133244Skientzle__dead void usage __P((const char *)) __dead2; 129133244Skientzle 130133244Skientzle__dead void 131133244Skientzleusage(cp) 132133244Skientzle const char *cp; 133133244Skientzle{ 134133244Skientzle if (cp) 135133244Skientzle warnx("bad keyword: %s", cp); 136133244Skientzle (void) fprintf(stderr, 137133244Skientzle "usage: route [ -nqv ] cmd [[ -<qualifers> ] args ]\n"); 138133244Skientzle exit(EX_USAGE); 139133244Skientzle /* NOTREACHED */ 140133244Skientzle} 141133244Skientzle 142133244Skientzle#define ROUNDUP(a) \ 143133244Skientzle ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long)) 144133244Skientzle#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len)) 145133244Skientzle 146133244Skientzleint 147133244Skientzlemain(argc, argv) 148133244Skientzle int argc; 149133244Skientzle char **argv; 150133244Skientzle{ 151133244Skientzle extern int optind; 152133244Skientzle int ch; 153133244Skientzle 154162028Skientzle if (argc < 2) 155133244Skientzle usage((char *)NULL); 156133244Skientzle 157133244Skientzle while ((ch = getopt(argc, argv, "nqdtv")) != EOF) 158133244Skientzle switch(ch) { 159162028Skientzle case 'n': 160133244Skientzle nflag = 1; 161133244Skientzle break; 162164448Skientzle case 'q': 163133244Skientzle qflag = 1; 164133244Skientzle break; 165133244Skientzle case 'v': 166133244Skientzle verbose = 1; 167133244Skientzle break; 168133244Skientzle case 't': 169133244Skientzle tflag = 1; 170133244Skientzle break; 171139913Skientzle case 'd': 172133244Skientzle debugonly = 1; 173140790Skientzle break; 174133244Skientzle case '?': 175133244Skientzle default: 176133244Skientzle usage((char *)NULL); 177133244Skientzle } 178133244Skientzle argc -= optind; 179133244Skientzle argv += optind; 180137240Skientzle 181133244Skientzle pid = getpid(); 182133244Skientzle uid = getuid(); 183133244Skientzle if (tflag) 184133244Skientzle s = open("/dev/null", O_WRONLY, 0); 185133244Skientzle else 186133244Skientzle s = socket(PF_ROUTE, SOCK_RAW, 0); 187133244Skientzle if (s < 0) 188164448Skientzle err(EX_OSERR, "socket"); 189133244Skientzle if (*argv) 190133244Skientzle switch (keyword(*argv)) { 191133244Skientzle case K_GET: 192133244Skientzle uid = 0; 193133244Skientzle /* FALLTHROUGH */ 194133244Skientzle 195133244Skientzle case K_CHANGE: 196133244Skientzle case K_ADD: 197133244Skientzle case K_DELETE: 198133244Skientzle newroute(argc, argv); 199133244Skientzle exit(0); 200 /* NOTREACHED */ 201 202 case K_MONITOR: 203 monitor(); 204 /* NOTREACHED */ 205 206 case K_FLUSH: 207 flushroutes(argc, argv); 208 exit(0); 209 /* NOTREACHED */ 210 } 211 usage(*argv); 212 /* NOTREACHED */ 213} 214 215/* 216 * Purge all entries in the routing tables not 217 * associated with network interfaces. 218 */ 219void 220flushroutes(argc, argv) 221 int argc; 222 char *argv[]; 223{ 224 size_t needed; 225 int mib[6], rlen, seqno; 226 char *buf, *next, *lim; 227 register struct rt_msghdr *rtm; 228 229 if (uid) { 230 errx(EX_NOPERM, "must be root to alter routing table"); 231 } 232 shutdown(s, 0); /* Don't want to read back our messages */ 233 if (argc > 1) { 234 argv++; 235 if (argc == 2 && **argv == '-') 236 switch (keyword(*argv + 1)) { 237 case K_INET: 238 af = AF_INET; 239 break; 240 case K_ATALK: 241 af = AF_APPLETALK; 242 break; 243#ifdef NS 244 case K_XNS: 245 af = AF_NS; 246 break; 247#endif 248 case K_LINK: 249 af = AF_LINK; 250 break; 251#ifdef ISO 252 case K_ISO: 253 case K_OSI: 254 af = AF_ISO; 255 break; 256#endif 257#ifdef CCITT 258 case K_X25: 259 af = AF_CCITT; 260#endif 261 default: 262 goto bad; 263 } else 264bad: usage(*argv); 265 } 266 mib[0] = CTL_NET; 267 mib[1] = PF_ROUTE; 268 mib[2] = 0; /* protocol */ 269 mib[3] = 0; /* wildcard address family */ 270 mib[4] = NET_RT_DUMP; 271 mib[5] = 0; /* no flags */ 272 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 273 err(EX_OSERR, "route-sysctl-estimate"); 274 if ((buf = malloc(needed)) == NULL) 275 err(EX_OSERR, "malloc"); 276 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 277 err(EX_OSERR, "route-sysctl-get"); 278 lim = buf + needed; 279 if (verbose) 280 (void) printf("Examining routing table from sysctl\n"); 281 seqno = 0; /* ??? */ 282 for (next = buf; next < lim; next += rtm->rtm_msglen) { 283 rtm = (struct rt_msghdr *)next; 284 if (verbose) 285 print_rtmsg(rtm, rtm->rtm_msglen); 286 if ((rtm->rtm_flags & RTF_GATEWAY) == 0) 287 continue; 288 if (af) { 289 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 290 291 if (sa->sa_family != af) 292 continue; 293 } 294 if (debugonly) 295 continue; 296 rtm->rtm_type = RTM_DELETE; 297 rtm->rtm_seq = seqno; 298 rlen = write(s, next, rtm->rtm_msglen); 299 if (rlen < (int)rtm->rtm_msglen) { 300 warn("write to routing socket"); 301 (void) printf("got only %d for rlen\n", rlen); 302 break; 303 } 304 seqno++; 305 if (qflag) 306 continue; 307 if (verbose) 308 print_rtmsg(rtm, rlen); 309 else { 310 struct sockaddr *sa = (struct sockaddr *)(rtm + 1); 311 (void) printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ? 312 routename(sa) : netname(sa)); 313 sa = (struct sockaddr *)(sa->sa_len + (char *)sa); 314 (void) printf("%-20.20s ", routename(sa)); 315 (void) printf("done\n"); 316 } 317 } 318} 319 320char * 321routename(sa) 322 struct sockaddr *sa; 323{ 324 register char *cp; 325 static char line[50]; 326 struct hostent *hp; 327 static char domain[MAXHOSTNAMELEN + 1]; 328 static int first = 1; 329#ifdef NS 330 char *ns_print(); 331#endif 332 333 if (first) { 334 first = 0; 335 if (gethostname(domain, MAXHOSTNAMELEN) == 0 && 336 (cp = index(domain, '.'))) 337 (void) strcpy(domain, cp + 1); 338 else 339 domain[0] = 0; 340 } 341 342 if (sa->sa_len == 0) 343 strcpy(line, "default"); 344 else switch (sa->sa_family) { 345 346 case AF_INET: 347 { struct in_addr in; 348 in = ((struct sockaddr_in *)sa)->sin_addr; 349 350 cp = 0; 351 if (in.s_addr == INADDR_ANY || sa->sa_len < 4) 352 cp = "default"; 353 if (cp == 0 && !nflag) { 354 hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), 355 AF_INET); 356 if (hp) { 357 if ((cp = index(hp->h_name, '.')) && 358 !strcmp(cp + 1, domain)) 359 *cp = 0; 360 cp = hp->h_name; 361 } 362 } 363 if (cp) 364 strcpy(line, cp); 365 else { 366 /* XXX - why not inet_ntoa()? */ 367#define C(x) (unsigned)((x) & 0xff) 368 in.s_addr = ntohl(in.s_addr); 369 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 370 C(in.s_addr >> 16), C(in.s_addr >> 8), C(in.s_addr)); 371 } 372 break; 373 } 374 375 case AF_APPLETALK: 376 (void) snprintf(line, sizeof(line), "atalk %s", 377 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); 378 break; 379 380#ifdef NS 381 case AF_NS: 382 return (ns_print((struct sockaddr_ns *)sa)); 383#endif 384 385 case AF_LINK: 386 return (link_ntoa((struct sockaddr_dl *)sa)); 387 388#ifdef ISO 389 case AF_ISO: 390 (void) sprintf(line, "iso %s", 391 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 392 break; 393#endif 394 default: 395 { u_short *s = (u_short *)sa; 396 u_short *slim = s + ((sa->sa_len + 1) >> 1); 397 char *cp = line + sprintf(line, "(%d)", sa->sa_family); 398 399 while (++s < slim) /* start with sa->sa_data */ 400 cp += sprintf(cp, " %x", *s); 401 break; 402 } 403 } 404 return (line); 405} 406 407/* 408 * Return the name of the network whose address is given. 409 * The address is assumed to be that of a net or subnet, not a host. 410 */ 411char * 412netname(sa) 413 struct sockaddr *sa; 414{ 415 char *cp = 0; 416 static char line[50]; 417 struct netent *np = 0; 418 u_long net, mask; 419 register u_long i; 420 int subnetshift; 421#ifdef NS 422 char *ns_print(); 423#endif 424 425 switch (sa->sa_family) { 426 427 case AF_INET: 428 { struct in_addr in; 429 in = ((struct sockaddr_in *)sa)->sin_addr; 430 431 i = in.s_addr = ntohl(in.s_addr); 432 if (in.s_addr == 0) 433 cp = "default"; 434 else if (!nflag) { 435 if (IN_CLASSA(i)) { 436 mask = IN_CLASSA_NET; 437 subnetshift = 8; 438 } else if (IN_CLASSB(i)) { 439 mask = IN_CLASSB_NET; 440 subnetshift = 8; 441 } else { 442 mask = IN_CLASSC_NET; 443 subnetshift = 4; 444 } 445 /* 446 * If there are more bits than the standard mask 447 * would suggest, subnets must be in use. 448 * Guess at the subnet mask, assuming reasonable 449 * width subnet fields. 450 */ 451 while (in.s_addr &~ mask) 452 mask = (long)mask >> subnetshift; 453 net = in.s_addr & mask; 454 while ((mask & 1) == 0) 455 mask >>= 1, net >>= 1; 456 np = getnetbyaddr(net, AF_INET); 457 if (np) 458 cp = np->n_name; 459 } 460 if (cp) 461 strcpy(line, cp); 462 else if ((in.s_addr & 0xffffff) == 0) 463 (void) sprintf(line, "%u", C(in.s_addr >> 24)); 464 else if ((in.s_addr & 0xffff) == 0) 465 (void) sprintf(line, "%u.%u", C(in.s_addr >> 24), 466 C(in.s_addr >> 16)); 467 else if ((in.s_addr & 0xff) == 0) 468 (void) sprintf(line, "%u.%u.%u", C(in.s_addr >> 24), 469 C(in.s_addr >> 16), C(in.s_addr >> 8)); 470 else 471 (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), 472 C(in.s_addr >> 16), C(in.s_addr >> 8), 473 C(in.s_addr)); 474 break; 475 } 476 477 case AF_APPLETALK: 478 (void) snprintf(line, sizeof(line), "atalk %s", 479 atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); 480 break; 481 482#ifdef NS 483 case AF_NS: 484 return (ns_print((struct sockaddr_ns *)sa)); 485 break; 486#endif 487 488 case AF_LINK: 489 return (link_ntoa((struct sockaddr_dl *)sa)); 490 491#ifdef ISO 492 case AF_ISO: 493 (void) sprintf(line, "iso %s", 494 iso_ntoa(&((struct sockaddr_iso *)sa)->siso_addr)); 495 break; 496#endif 497 498 default: 499 { u_short *s = (u_short *)sa->sa_data; 500 u_short *slim = s + ((sa->sa_len + 1)>>1); 501 char *cp = line + sprintf(line, "af %d:", sa->sa_family); 502 503 while (s < slim) 504 cp += sprintf(cp, " %x", *s++); 505 break; 506 } 507 } 508 return (line); 509} 510 511void 512set_metric(value, key) 513 char *value; 514 int key; 515{ 516 int flag = 0; 517 u_long noval, *valp = &noval; 518 519 switch (key) { 520#define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break 521 caseof(K_MTU, RTV_MTU, rmx_mtu); 522 caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); 523 caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); 524 caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); 525 caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); 526 caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); 527 caseof(K_RTT, RTV_RTT, rmx_rtt); 528 caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); 529 } 530 rtm_inits |= flag; 531 if (lockrest || locking) 532 rt_metrics.rmx_locks |= flag; 533 if (locking) 534 locking = 0; 535 *valp = atoi(value); 536} 537 538void 539newroute(argc, argv) 540 int argc; 541 register char **argv; 542{ 543 char *cmd, *dest = "", *gateway = "", *err; 544 int ishost = 0, ret, attempts, oerrno, flags = RTF_STATIC; 545 int key; 546 struct hostent *hp = 0; 547 548 if (uid) { 549 errx(EX_NOPERM, "must be root to alter routing table"); 550 } 551 cmd = argv[0]; 552 if (*cmd != 'g') 553 shutdown(s, 0); /* Don't want to read back our messages */ 554 while (--argc > 0) { 555 if (**(++argv)== '-') { 556 switch (key = keyword(1 + *argv)) { 557 case K_LINK: 558 af = AF_LINK; 559 aflen = sizeof(struct sockaddr_dl); 560 break; 561#ifdef ISO 562 case K_OSI: 563 case K_ISO: 564 af = AF_ISO; 565 aflen = sizeof(struct sockaddr_iso); 566 break; 567#endif 568 case K_INET: 569 af = AF_INET; 570 aflen = sizeof(struct sockaddr_in); 571 break; 572 case K_ATALK: 573 af = AF_APPLETALK; 574 aflen = sizeof(struct sockaddr_at); 575 break; 576#ifdef CCITT 577 case K_X25: 578 af = AF_CCITT; 579 aflen = sizeof(struct sockaddr_x25); 580 break; 581#endif 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_LOCK: 600 locking = 1; 601 break; 602 case K_LOCKREST: 603 lockrest = 1; 604 break; 605 case K_HOST: 606 forcehost++; 607 break; 608 case K_REJECT: 609 flags |= RTF_REJECT; 610 break; 611 case K_BLACKHOLE: 612 flags |= RTF_BLACKHOLE; 613 break; 614 case K_PROTO1: 615 flags |= RTF_PROTO1; 616 break; 617 case K_PROTO2: 618 flags |= RTF_PROTO2; 619 break; 620 case K_CLONING: 621 flags |= RTF_CLONING; 622 break; 623 case K_XRESOLVE: 624 flags |= RTF_XRESOLVE; 625 break; 626 case K_STATIC: 627 flags |= RTF_STATIC; 628 break; 629 case K_IFA: 630 argc--; 631 (void) getaddr(RTA_IFA, *++argv, 0); 632 break; 633 case K_IFP: 634 argc--; 635 (void) getaddr(RTA_IFP, *++argv, 0); 636 break; 637 case K_GENMASK: 638 argc--; 639 (void) getaddr(RTA_GENMASK, *++argv, 0); 640 break; 641 case K_GATEWAY: 642 argc--; 643 (void) getaddr(RTA_GATEWAY, *++argv, 0); 644 break; 645 case K_DST: 646 argc--; 647 ishost = getaddr(RTA_DST, *++argv, &hp); 648 dest = *argv; 649 break; 650 case K_NETMASK: 651 argc--; 652 (void) getaddr(RTA_NETMASK, *++argv, 0); 653 /* FALLTHROUGH */ 654 case K_NET: 655 forcenet++; 656 break; 657 case K_MTU: 658 case K_HOPCOUNT: 659 case K_EXPIRE: 660 case K_RECVPIPE: 661 case K_SENDPIPE: 662 case K_SSTHRESH: 663 case K_RTT: 664 case K_RTTVAR: 665 argc--; 666 set_metric(*++argv, key); 667 break; 668 default: 669 usage(1+*argv); 670 } 671 } else { 672 if ((rtm_addrs & RTA_DST) == 0) { 673 dest = *argv; 674 ishost = getaddr(RTA_DST, *argv, &hp); 675 } else if ((rtm_addrs & RTA_GATEWAY) == 0) { 676 gateway = *argv; 677 (void) getaddr(RTA_GATEWAY, *argv, &hp); 678 } else { 679#ifdef CRUFT 680 int ret = atoi(*argv); 681 682 if (ret == 0) { 683 if (strcmp(*argv, "0") == 0) 684 printf("%s,%s", 685 "old usage of trailing 0", 686 "assuming route to if\n"); 687 else 688 usage((char *)NULL); 689 iflag = 1; 690 continue; 691 } else if (ret > 0 && ret < 10) { 692 printf("old usage of trailing digit, "); 693 printf("assuming route via gateway\n"); 694 iflag = 0; 695 continue; 696 } 697#endif 698 (void) getaddr(RTA_NETMASK, *argv, 0); 699 } 700 } 701 } 702 if (forcehost) 703 ishost = 1; 704 if (forcenet) 705 ishost = 0; 706 flags |= RTF_UP; 707 if (ishost) 708 flags |= RTF_HOST; 709 if (iflag == 0) 710 flags |= RTF_GATEWAY; 711 for (attempts = 1; ; attempts++) { 712 errno = 0; 713 if ((ret = rtmsg(*cmd, flags)) == 0) 714 break; 715 if (errno != ENETUNREACH && errno != ESRCH) 716 break; 717 if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { 718 hp->h_addr_list++; 719 bcopy(hp->h_addr_list[0], &so_gate.sin.sin_addr, 720 hp->h_length); 721 } else 722 break; 723 } 724 if (*cmd == 'g') 725 exit(0); 726 oerrno = errno; 727 (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest); 728 if (*gateway) { 729 (void) printf(": gateway %s", gateway); 730 if (attempts > 1 && ret == 0 && af == AF_INET) 731 (void) printf(" (%s)", 732 inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr)); 733 } 734 if (ret == 0) 735 (void) printf("\n"); 736 else { 737 switch (oerrno) { 738 case ESRCH: 739 err = "not in table"; 740 break; 741 case EBUSY: 742 err = "entry in use"; 743 break; 744 case ENOBUFS: 745 err = "routing table overflow"; 746 break; 747 default: 748 err = strerror(oerrno); 749 break; 750 } 751 (void) printf(": %s\n", err); 752 } 753} 754 755void 756inet_makenetandmask(net, sin) 757 u_long net; 758 register struct sockaddr_in *sin; 759{ 760 u_long addr, mask = 0; 761 register char *cp; 762 763 rtm_addrs |= RTA_NETMASK; 764 if (net == 0) 765 mask = addr = 0; 766 else if (net < 128) { 767 addr = net << IN_CLASSA_NSHIFT; 768 mask = IN_CLASSA_NET; 769 } else if (net < 65536) { 770 addr = net << IN_CLASSB_NSHIFT; 771 mask = IN_CLASSB_NET; 772 } else if (net < 16777216L) { 773 addr = net << IN_CLASSC_NSHIFT; 774 mask = IN_CLASSC_NET; 775 } else { 776 addr = net; 777 if ((addr & IN_CLASSA_HOST) == 0) 778 mask = IN_CLASSA_NET; 779 else if ((addr & IN_CLASSB_HOST) == 0) 780 mask = IN_CLASSB_NET; 781 else if ((addr & IN_CLASSC_HOST) == 0) 782 mask = IN_CLASSC_NET; 783 else 784 mask = -1; 785 } 786 sin->sin_addr.s_addr = htonl(addr); 787 sin = &so_mask.sin; 788 sin->sin_addr.s_addr = htonl(mask); 789 sin->sin_len = 0; 790 sin->sin_family = 0; 791 cp = (char *)(&sin->sin_addr + 1); 792 while (*--cp == 0 && cp > (char *)sin) 793 ; 794 sin->sin_len = 1 + cp - (char *)sin; 795} 796 797/* 798 * Interpret an argument as a network address of some kind, 799 * returning 1 if a host address, 0 if a network address. 800 */ 801int 802getaddr(which, s, hpp) 803 int which; 804 char *s; 805 struct hostent **hpp; 806{ 807 register sup su; 808#ifdef NS 809 struct ns_addr ns_addr(); 810#endif 811#ifdef ISO 812 struct iso_addr *iso_addr(); 813#endif 814 struct hostent *hp; 815 struct netent *np; 816 u_long val; 817 818 if (af == 0) { 819 af = AF_INET; 820 aflen = sizeof(struct sockaddr_in); 821 } 822 rtm_addrs |= which; 823 switch (which) { 824 case RTA_DST: 825 su = &so_dst; 826 su->sa.sa_family = af; 827 break; 828 case RTA_GATEWAY: 829 su = &so_gate; 830 su->sa.sa_family = af; 831 break; 832 case RTA_NETMASK: 833 su = &so_mask; 834 break; 835 case RTA_GENMASK: 836 su = &so_genmask; 837 break; 838 case RTA_IFP: 839 su = &so_ifp; 840 su->sa.sa_family = af; 841 break; 842 case RTA_IFA: 843 su = &so_ifa; 844 su->sa.sa_family = af; 845 break; 846 default: 847 usage("Internal Error"); 848 /*NOTREACHED*/ 849 } 850 su->sa.sa_len = aflen; 851 if (strcmp(s, "default") == 0) { 852 switch (which) { 853 case RTA_DST: 854 forcenet++; 855 (void) getaddr(RTA_NETMASK, s, 0); 856 break; 857 case RTA_NETMASK: 858 case RTA_GENMASK: 859 su->sa.sa_len = 0; 860 } 861 return (0); 862 } 863 switch (af) { 864#ifdef NS 865 case AF_NS: 866 if (which == RTA_DST) { 867 extern short ns_bh[3]; 868 struct sockaddr_ns *sms = &(so_mask.sns); 869 bzero((char *)sms, sizeof(*sms)); 870 sms->sns_family = 0; 871 sms->sns_len = 6; 872 sms->sns_addr.x_net = *(union ns_net *)ns_bh; 873 rtm_addrs |= RTA_NETMASK; 874 } 875 su->sns.sns_addr = ns_addr(s); 876 return (!ns_nullhost(su->sns.sns_addr)); 877#endif 878 879#ifdef ISO 880 case AF_OSI: 881 su->siso.siso_addr = *iso_addr(s); 882 if (which == RTA_NETMASK || which == RTA_GENMASK) { 883 register char *cp = (char *)TSEL(&su->siso); 884 su->siso.siso_nlen = 0; 885 do {--cp ;} while ((cp > (char *)su) && (*cp == 0)); 886 su->siso.siso_len = 1 + cp - (char *)su; 887 } 888 return (1); 889#endif 890 891 case AF_APPLETALK: 892 if (!atalk_aton(s, &su->sat.sat_addr)) 893 errx(EX_NOHOST, "bad address: %s", s); 894 rtm_addrs |= RTA_NETMASK; 895 return(forcehost || su->sat.sat_addr.s_node != 0); 896 897 case AF_LINK: 898 link_addr(s, &su->sdl); 899 return (1); 900 901#ifdef ISO 902 case AF_CCITT: 903 ccitt_addr(s, &su->sx25); 904 return (which == RTA_DST ? x25_makemask() : 1); 905#endif 906 907 case PF_ROUTE: 908 su->sa.sa_len = sizeof(*su); 909 sockaddr(s, &su->sa); 910 return (1); 911 912 case AF_INET: 913 default: 914 break; 915 } 916 917 if (hpp == NULL) 918 hpp = &hp; 919 *hpp = NULL; 920 if (((val = inet_addr(s)) != INADDR_NONE) && 921 (which != RTA_DST || forcenet == 0)) { 922 su->sin.sin_addr.s_addr = val; 923 if (inet_lnaof(su->sin.sin_addr) != INADDR_ANY) 924 return (1); 925 else { 926 val = ntohl(val); 927 goto netdone; 928 } 929 } 930 if ((val = inet_network(s)) != INADDR_NONE || 931 ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0)) { 932netdone: 933 if (which == RTA_DST) 934 inet_makenetandmask(val, &su->sin); 935 return (0); 936 } 937 hp = gethostbyname(s); 938 if (hp) { 939 *hpp = hp; 940 su->sin.sin_family = hp->h_addrtype; 941 bcopy(hp->h_addr, (char *)&su->sin.sin_addr, hp->h_length); 942 return (1); 943 } 944 errx(EX_NOHOST, "bad address: %s", s); 945} 946 947#ifdef CCITT 948int 949x25_makemask() 950{ 951 register char *cp; 952 953 if ((rtm_addrs & RTA_NETMASK) == 0) { 954 rtm_addrs |= RTA_NETMASK; 955 for (cp = (char *)&so_mask.sx25.x25_net; 956 cp < &so_mask.sx25.x25_opts.op_flags; cp++) 957 *cp = -1; 958 so_mask.sx25.x25_len = (u_char)&(((sup)0)->sx25.x25_opts); 959 } 960 return 0; 961} 962#endif 963 964#ifdef NS 965short ns_nullh[] = {0,0,0}; 966short ns_bh[] = {-1,-1,-1}; 967 968char * 969ns_print(sns) 970 struct sockaddr_ns *sns; 971{ 972 struct ns_addr work; 973 union { union ns_net net_e; u_long long_e; } net; 974 u_short port; 975 static char mybuf[50], cport[10], chost[25]; 976 char *host = ""; 977 register char *p; 978 register u_char *q; 979 980 work = sns->sns_addr; 981 port = ntohs(work.x_port); 982 work.x_port = 0; 983 net.net_e = work.x_net; 984 if (ns_nullhost(work) && net.long_e == 0) { 985 if (!port) 986 return ("*.*"); 987 (void) sprintf(mybuf, "*.%XH", port); 988 return (mybuf); 989 } 990 991 if (bcmp((char *)ns_bh, (char *)work.x_host.c_host, 6) == 0) 992 host = "any"; 993 else if (bcmp((char *)ns_nullh, (char *)work.x_host.c_host, 6) == 0) 994 host = "*"; 995 else { 996 q = work.x_host.c_host; 997 (void) sprintf(chost, "%02X%02X%02X%02X%02X%02XH", 998 q[0], q[1], q[2], q[3], q[4], q[5]); 999 for (p = chost; *p == '0' && p < chost + 12; p++) 1000 /* void */; 1001 host = p; 1002 } 1003 if (port) 1004 (void) sprintf(cport, ".%XH", htons(port)); 1005 else 1006 *cport = 0; 1007 1008 (void) sprintf(mybuf,"%lxH.%s%s", (unsigned long)ntohl(net.long_e), 1009 host, cport); 1010 return (mybuf); 1011} 1012#endif 1013 1014void 1015interfaces() 1016{ 1017 size_t needed; 1018 int mib[6]; 1019 char *buf, *lim, *next; 1020 register struct rt_msghdr *rtm; 1021 1022 mib[0] = CTL_NET; 1023 mib[1] = PF_ROUTE; 1024 mib[2] = 0; /* protocol */ 1025 mib[3] = 0; /* wildcard address family */ 1026 mib[4] = NET_RT_IFLIST; 1027 mib[5] = 0; /* no flags */ 1028 if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) 1029 err(EX_OSERR, "route-sysctl-estimate"); 1030 if ((buf = malloc(needed)) == NULL) 1031 err(EX_OSERR, "malloc"); 1032 if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) 1033 err(EX_OSERR, "actual retrieval of interface table"); 1034 lim = buf + needed; 1035 for (next = buf; next < lim; next += rtm->rtm_msglen) { 1036 rtm = (struct rt_msghdr *)next; 1037 print_rtmsg(rtm, rtm->rtm_msglen); 1038 } 1039} 1040 1041void 1042monitor() 1043{ 1044 int n; 1045 char msg[2048]; 1046 1047 verbose = 1; 1048 if (debugonly) { 1049 interfaces(); 1050 exit(0); 1051 } 1052 for(;;) { 1053 n = read(s, msg, 2048); 1054 (void) printf("got message of size %d\n", n); 1055 print_rtmsg((struct rt_msghdr *)msg, n); 1056 } 1057} 1058 1059struct { 1060 struct rt_msghdr m_rtm; 1061 char m_space[512]; 1062} m_rtmsg; 1063 1064int 1065rtmsg(cmd, flags) 1066 int cmd, flags; 1067{ 1068 static int seq; 1069 int rlen; 1070 register char *cp = m_rtmsg.m_space; 1071 register int l; 1072 1073#define NEXTADDR(w, u) \ 1074 if (rtm_addrs & (w)) {\ 1075 l = ROUNDUP(u.sa.sa_len); bcopy((char *)&(u), cp, l); cp += l;\ 1076 if (verbose) sodump(&(u),"u");\ 1077 } 1078 1079 errno = 0; 1080 bzero((char *)&m_rtmsg, sizeof(m_rtmsg)); 1081 if (cmd == 'a') 1082 cmd = RTM_ADD; 1083 else if (cmd == 'c') 1084 cmd = RTM_CHANGE; 1085 else if (cmd == 'g') { 1086 cmd = RTM_GET; 1087 if (so_ifp.sa.sa_family == 0) { 1088 so_ifp.sa.sa_family = AF_LINK; 1089 so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); 1090 rtm_addrs |= RTA_IFP; 1091 } 1092 } else 1093 cmd = RTM_DELETE; 1094#define rtm m_rtmsg.m_rtm 1095 rtm.rtm_type = cmd; 1096 rtm.rtm_flags = flags; 1097 rtm.rtm_version = RTM_VERSION; 1098 rtm.rtm_seq = ++seq; 1099 rtm.rtm_addrs = rtm_addrs; 1100 rtm.rtm_rmx = rt_metrics; 1101 rtm.rtm_inits = rtm_inits; 1102 1103 if (rtm_addrs & RTA_NETMASK) 1104 mask_addr(); 1105 NEXTADDR(RTA_DST, so_dst); 1106 NEXTADDR(RTA_GATEWAY, so_gate); 1107 NEXTADDR(RTA_NETMASK, so_mask); 1108 NEXTADDR(RTA_GENMASK, so_genmask); 1109 NEXTADDR(RTA_IFP, so_ifp); 1110 NEXTADDR(RTA_IFA, so_ifa); 1111 rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; 1112 if (verbose) 1113 print_rtmsg(&rtm, l); 1114 if (debugonly) 1115 return (0); 1116 if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) { 1117 perror("writing to routing socket"); 1118 return (-1); 1119 } 1120 if (cmd == RTM_GET) { 1121 do { 1122 l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); 1123 } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); 1124 if (l < 0) 1125 warn("read from routing socket"); 1126 else 1127 print_getmsg(&rtm, l); 1128 } 1129#undef rtm 1130 return (0); 1131} 1132 1133void 1134mask_addr() 1135{ 1136 int olen = so_mask.sa.sa_len; 1137 register char *cp1 = olen + (char *)&so_mask, *cp2; 1138 1139 for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) 1140 if (*--cp1 != 0) { 1141 so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; 1142 break; 1143 } 1144 if ((rtm_addrs & RTA_DST) == 0) 1145 return; 1146 switch (so_dst.sa.sa_family) { 1147#ifdef NS 1148 case AF_NS: 1149#endif 1150 case AF_INET: 1151 case AF_APPLETALK: 1152#ifdef CCITT 1153 case AF_CCITT: 1154#endif 1155 case 0: 1156 return; 1157#ifdef ISO 1158 case AF_ISO: 1159 olen = MIN(so_dst.siso.siso_nlen, 1160 MAX(so_mask.sa.sa_len - 6, 0)); 1161 break; 1162#endif 1163 } 1164 cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; 1165 cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; 1166 while (cp2 > cp1) 1167 *--cp2 = 0; 1168 cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; 1169 while (cp1 > so_dst.sa.sa_data) 1170 *--cp1 &= *--cp2; 1171#ifdef ISO 1172 switch (so_dst.sa.sa_family) { 1173 case AF_ISO: 1174 so_dst.siso.siso_nlen = olen; 1175 break; 1176 } 1177#endif 1178} 1179 1180char *msgtypes[] = { 1181 "", 1182 "RTM_ADD: Add Route", 1183 "RTM_DELETE: Delete Route", 1184 "RTM_CHANGE: Change Metrics or flags", 1185 "RTM_GET: Report Metrics", 1186 "RTM_LOSING: Kernel Suspects Partitioning", 1187 "RTM_REDIRECT: Told to use different route", 1188 "RTM_MISS: Lookup failed on this address", 1189 "RTM_LOCK: fix specified metrics", 1190 "RTM_OLDADD: caused by SIOCADDRT", 1191 "RTM_OLDDEL: caused by SIOCDELRT", 1192 "RTM_RESOLVE: Route created by cloning", 1193 "RTM_NEWADDR: address being added to iface", 1194 "RTM_DELADDR: address being removed from iface", 1195 "RTM_IFINFO: iface status change", 1196 0, 1197}; 1198 1199char metricnames[] = 1200"\011pksent\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire\2hopcount" 1201"\1mtu"; 1202char routeflags[] = 1203"\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE\010MASK_PRESENT" 1204"\011CLONING\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE\016b016" 1205"\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3\024CHAINDELETE" 1206"\025PINNED\026LOCAL\027BROADCAST\030MULTICAST"; 1207char ifnetflags[] = 1208"\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP" 1209"\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1" 1210"\017LINK2\020MULTICAST"; 1211char addrnames[] = 1212"\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; 1213 1214void 1215print_rtmsg(rtm, msglen) 1216 register struct rt_msghdr *rtm; 1217 int msglen; 1218{ 1219 struct if_msghdr *ifm; 1220 struct ifa_msghdr *ifam; 1221 1222 if (verbose == 0) 1223 return; 1224 if (rtm->rtm_version != RTM_VERSION) { 1225 (void) printf("routing message version %d not understood\n", 1226 rtm->rtm_version); 1227 return; 1228 } 1229 (void)printf("%s: len %d, ", msgtypes[rtm->rtm_type], rtm->rtm_msglen); 1230 switch (rtm->rtm_type) { 1231 case RTM_IFINFO: 1232 ifm = (struct if_msghdr *)rtm; 1233 (void) printf("if# %d, flags:", ifm->ifm_index); 1234 bprintf(stdout, ifm->ifm_flags, ifnetflags); 1235 pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); 1236 break; 1237 case RTM_NEWADDR: 1238 case RTM_DELADDR: 1239 ifam = (struct ifa_msghdr *)rtm; 1240 (void) printf("metric %d, flags:", ifam->ifam_metric); 1241 bprintf(stdout, ifam->ifam_flags, routeflags); 1242 pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); 1243 break; 1244 default: 1245 (void) printf("pid: %ld, seq %d, errno %d, flags:", 1246 (long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); 1247 bprintf(stdout, rtm->rtm_flags, routeflags); 1248 pmsg_common(rtm); 1249 } 1250} 1251 1252void 1253print_getmsg(rtm, msglen) 1254 register struct rt_msghdr *rtm; 1255 int msglen; 1256{ 1257 struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL; 1258 struct sockaddr_dl *ifp = NULL; 1259 register struct sockaddr *sa; 1260 register char *cp; 1261 register int i; 1262 1263 (void) printf(" route to: %s\n", routename(&so_dst)); 1264 if (rtm->rtm_version != RTM_VERSION) { 1265 warnx("routing message version %d not understood", 1266 rtm->rtm_version); 1267 return; 1268 } 1269 if (rtm->rtm_msglen > msglen) { 1270 warnx("message length mismatch, in packet %d, returned %d\n", 1271 rtm->rtm_msglen, msglen); 1272 } 1273 if (rtm->rtm_errno) { 1274 errno = rtm->rtm_errno; 1275 warn("message indicates error %d", errno); 1276 return; 1277 } 1278 cp = ((char *)(rtm + 1)); 1279 if (rtm->rtm_addrs) 1280 for (i = 1; i; i <<= 1) 1281 if (i & rtm->rtm_addrs) { 1282 sa = (struct sockaddr *)cp; 1283 switch (i) { 1284 case RTA_DST: 1285 dst = sa; 1286 break; 1287 case RTA_GATEWAY: 1288 gate = sa; 1289 break; 1290 case RTA_NETMASK: 1291 mask = sa; 1292 break; 1293 case RTA_IFP: 1294 if (sa->sa_family == AF_LINK && 1295 ((struct sockaddr_dl *)sa)->sdl_nlen) 1296 ifp = (struct sockaddr_dl *)sa; 1297 break; 1298 } 1299 ADVANCE(cp, sa); 1300 } 1301 if (dst && mask) 1302 mask->sa_family = dst->sa_family; /* XXX */ 1303 if (dst) 1304 (void)printf("destination: %s\n", routename(dst)); 1305 if (mask) { 1306 int savenflag = nflag; 1307 1308 nflag = 1; 1309 (void)printf(" mask: %s\n", routename(mask)); 1310 nflag = savenflag; 1311 } 1312 if (gate && rtm->rtm_flags & RTF_GATEWAY) 1313 (void)printf(" gateway: %s\n", routename(gate)); 1314 if (ifp) 1315 (void)printf(" interface: %.*s\n", 1316 ifp->sdl_nlen, ifp->sdl_data); 1317 (void)printf(" flags: "); 1318 bprintf(stdout, rtm->rtm_flags, routeflags); 1319 1320#define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') 1321#define msec(u) (((u) + 500) / 1000) /* usec to msec */ 1322 1323 (void) printf("\n%s\n", "\ 1324 recvpipe sendpipe ssthresh rtt,msec rttvar hopcount mtu expire"); 1325 printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); 1326 printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); 1327 printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); 1328 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); 1329 printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rttvar), lock(RTTVAR)); 1330 printf("%8ld%c ", rtm->rtm_rmx.rmx_hopcount, lock(HOPCOUNT)); 1331 printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); 1332 if (rtm->rtm_rmx.rmx_expire) 1333 rtm->rtm_rmx.rmx_expire -= time(0); 1334 printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); 1335#undef lock 1336#undef msec 1337#define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) 1338 if (verbose) 1339 pmsg_common(rtm); 1340 else if (rtm->rtm_addrs &~ RTA_IGN) { 1341 (void) printf("sockaddrs: "); 1342 bprintf(stdout, rtm->rtm_addrs, addrnames); 1343 putchar('\n'); 1344 } 1345#undef RTA_IGN 1346} 1347 1348void 1349pmsg_common(rtm) 1350 register struct rt_msghdr *rtm; 1351{ 1352 (void) printf("\nlocks: "); 1353 bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); 1354 (void) printf(" inits: "); 1355 bprintf(stdout, rtm->rtm_inits, metricnames); 1356 pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); 1357} 1358 1359void 1360pmsg_addrs(cp, addrs) 1361 char *cp; 1362 int addrs; 1363{ 1364 register struct sockaddr *sa; 1365 int i; 1366 1367 if (addrs == 0) 1368 return; 1369 (void) printf("\nsockaddrs: "); 1370 bprintf(stdout, addrs, addrnames); 1371 (void) putchar('\n'); 1372 for (i = 1; i; i <<= 1) 1373 if (i & addrs) { 1374 sa = (struct sockaddr *)cp; 1375 (void) printf(" %s", routename(sa)); 1376 ADVANCE(cp, sa); 1377 } 1378 (void) putchar('\n'); 1379 (void) fflush(stdout); 1380} 1381 1382void 1383bprintf(fp, b, s) 1384 register FILE *fp; 1385 register int b; 1386 register u_char *s; 1387{ 1388 register int i; 1389 int gotsome = 0; 1390 1391 if (b == 0) 1392 return; 1393 while ((i = *s++) != 0) { 1394 if (b & (1 << (i-1))) { 1395 if (gotsome == 0) 1396 i = '<'; 1397 else 1398 i = ','; 1399 (void) putc(i, fp); 1400 gotsome = 1; 1401 for (; (i = *s) > 32; s++) 1402 (void) putc(i, fp); 1403 } else 1404 while (*s > 32) 1405 s++; 1406 } 1407 if (gotsome) 1408 (void) putc('>', fp); 1409} 1410 1411int 1412keyword(cp) 1413 char *cp; 1414{ 1415 register struct keytab *kt = keywords; 1416 1417 while (kt->kt_cp && strcmp(kt->kt_cp, cp)) 1418 kt++; 1419 return kt->kt_i; 1420} 1421 1422void 1423sodump(su, which) 1424 register sup su; 1425 char *which; 1426{ 1427 switch (su->sa.sa_family) { 1428 case AF_LINK: 1429 (void) printf("%s: link %s; ", 1430 which, link_ntoa(&su->sdl)); 1431 break; 1432#ifdef ISO 1433 case AF_ISO: 1434 (void) printf("%s: iso %s; ", 1435 which, iso_ntoa(&su->siso.siso_addr)); 1436 break; 1437#endif 1438 case AF_INET: 1439 (void) printf("%s: inet %s; ", 1440 which, inet_ntoa(su->sin.sin_addr)); 1441 break; 1442 case AF_APPLETALK: 1443 (void) printf("%s: atalk %s; ", 1444 which, atalk_ntoa(su->sat.sat_addr)); 1445 break; 1446#ifdef NS 1447 case AF_NS: 1448 (void) printf("%s: xns %s; ", 1449 which, ns_ntoa(su->sns.sns_addr)); 1450 break; 1451#endif 1452 } 1453 (void) fflush(stdout); 1454} 1455 1456/* States*/ 1457#define VIRGIN 0 1458#define GOTONE 1 1459#define GOTTWO 2 1460/* Inputs */ 1461#define DIGIT (4*0) 1462#define END (4*1) 1463#define DELIM (4*2) 1464 1465void 1466sockaddr(addr, sa) 1467 register char *addr; 1468 register struct sockaddr *sa; 1469{ 1470 register char *cp = (char *)sa; 1471 int size = sa->sa_len; 1472 char *cplim = cp + size; 1473 register int byte = 0, state = VIRGIN, new = 0 /* foil gcc */; 1474 1475 bzero(cp, size); 1476 cp++; 1477 do { 1478 if ((*addr >= '0') && (*addr <= '9')) { 1479 new = *addr - '0'; 1480 } else if ((*addr >= 'a') && (*addr <= 'f')) { 1481 new = *addr - 'a' + 10; 1482 } else if ((*addr >= 'A') && (*addr <= 'F')) { 1483 new = *addr - 'A' + 10; 1484 } else if (*addr == 0) 1485 state |= END; 1486 else 1487 state |= DELIM; 1488 addr++; 1489 switch (state /* | INPUT */) { 1490 case GOTTWO | DIGIT: 1491 *cp++ = byte; /*FALLTHROUGH*/ 1492 case VIRGIN | DIGIT: 1493 state = GOTONE; byte = new; continue; 1494 case GOTONE | DIGIT: 1495 state = GOTTWO; byte = new + (byte << 4); continue; 1496 default: /* | DELIM */ 1497 state = VIRGIN; *cp++ = byte; byte = 0; continue; 1498 case GOTONE | END: 1499 case GOTTWO | END: 1500 *cp++ = byte; /* FALLTHROUGH */ 1501 case VIRGIN | END: 1502 break; 1503 } 1504 break; 1505 } while (cp < cplim); 1506 sa->sa_len = cp - (char *)sa; 1507} 1508 1509int 1510atalk_aton(const char *text, struct at_addr *addr) 1511{ 1512 u_int net, node; 1513 1514 if (sscanf(text, "%u.%u", &net, &node) != 2 1515 || net > 0xffff || node > 0xff) 1516 return(0); 1517 addr->s_net = htons(net); 1518 addr->s_node = node; 1519 return(1); 1520} 1521 1522char * 1523atalk_ntoa(struct at_addr at) 1524{ 1525 static char buf[20]; 1526 1527 (void) snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node); 1528 return(buf); 1529} 1530