[bd2941b] | 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 | * 4. Neither the name of the University nor the names of its contributors |
---|
| 14 | * may be used to endorse or promote products derived from this software |
---|
| 15 | * without specific prior written permission. |
---|
| 16 | * |
---|
| 17 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
---|
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
---|
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
---|
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
---|
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
---|
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
---|
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
---|
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
---|
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
---|
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
---|
| 27 | * SUCH DAMAGE. |
---|
| 28 | */ |
---|
| 29 | |
---|
| 30 | #ifndef lint |
---|
| 31 | static const char copyright[] = |
---|
| 32 | "@(#) Copyright (c) 1983, 1989, 1991, 1993\n\ |
---|
| 33 | The Regents of the University of California. All rights reserved.\n"; |
---|
| 34 | #endif /* not lint */ |
---|
| 35 | |
---|
| 36 | #ifndef lint |
---|
| 37 | #if 0 |
---|
| 38 | static char sccsid[] = "@(#)route.c 8.6 (Berkeley) 4/28/95"; |
---|
| 39 | #endif |
---|
| 40 | static const char rcsid[] = |
---|
| 41 | "$FreeBSD$"; |
---|
| 42 | #endif /* not lint */ |
---|
| 43 | |
---|
| 44 | #include <sys/param.h> |
---|
| 45 | #include <sys/file.h> |
---|
| 46 | #include <sys/socket.h> |
---|
| 47 | #include <sys/ioctl.h> |
---|
| 48 | #include <sys/sysctl.h> |
---|
| 49 | #include <sys/types.h> |
---|
| 50 | |
---|
| 51 | #include <net/if.h> |
---|
| 52 | #include <net/route.h> |
---|
| 53 | #include <net/if_dl.h> |
---|
| 54 | #include <netinet/in.h> |
---|
| 55 | |
---|
| 56 | #include <netinet/if_ether.h> |
---|
| 57 | #include <netatalk/at.h> |
---|
| 58 | |
---|
| 59 | #include <arpa/inet.h> |
---|
| 60 | #include <netdb.h> |
---|
| 61 | |
---|
| 62 | #include <ctype.h> |
---|
| 63 | #include <err.h> |
---|
| 64 | #include <errno.h> |
---|
| 65 | #include <paths.h> |
---|
| 66 | #include <stdio.h> |
---|
| 67 | #include <stdlib.h> |
---|
| 68 | #include <string.h> |
---|
| 69 | #include <sysexits.h> |
---|
| 70 | #include <unistd.h> |
---|
| 71 | #include <ifaddrs.h> |
---|
| 72 | |
---|
| 73 | #ifdef __rtems__ |
---|
| 74 | #ifndef _PATH_DEVNULL |
---|
| 75 | #define _PATH_DEVNULL "/dev/null" |
---|
| 76 | #endif |
---|
| 77 | #endif |
---|
| 78 | |
---|
| 79 | struct keytab { |
---|
| 80 | char *kt_cp; |
---|
| 81 | int kt_i; |
---|
| 82 | } keywords[] = { |
---|
| 83 | #include "keywords.h" |
---|
| 84 | {0, 0} |
---|
| 85 | }; |
---|
| 86 | |
---|
| 87 | struct ortentry route; |
---|
| 88 | union sockunion { |
---|
| 89 | struct sockaddr sa; |
---|
| 90 | struct sockaddr_in sin; |
---|
| 91 | #ifdef INET6 |
---|
| 92 | struct sockaddr_in6 sin6; |
---|
| 93 | #endif |
---|
| 94 | struct sockaddr_at sat; |
---|
| 95 | struct sockaddr_dl sdl; |
---|
| 96 | struct sockaddr_inarp sinarp; |
---|
| 97 | struct sockaddr_storage ss; /* added to avoid memory overrun */ |
---|
| 98 | } so_dst, so_gate, so_mask, so_genmask, so_ifa, so_ifp; |
---|
| 99 | |
---|
| 100 | typedef union sockunion *sup; |
---|
| 101 | int pid, rtm_addrs; |
---|
| 102 | int s; |
---|
| 103 | int forcehost, forcenet, doflush, nflag, af, qflag, tflag, keyword(); |
---|
| 104 | int iflag, verbose, aflen = sizeof (struct sockaddr_in); |
---|
| 105 | int locking, lockrest, debugonly; |
---|
| 106 | struct rt_metrics rt_metrics; |
---|
| 107 | u_long rtm_inits; |
---|
| 108 | uid_t uid; |
---|
| 109 | int atalk_aton(const char *, struct at_addr *); |
---|
| 110 | char *atalk_ntoa(struct at_addr); |
---|
| 111 | const char *routename(), *netname(); |
---|
| 112 | void flushroutes(), newroute(), monitor(), sockaddr(), sodump(), bprintf(); |
---|
| 113 | void print_getmsg(), print_rtmsg(), pmsg_common(), pmsg_addrs(), mask_addr(); |
---|
| 114 | #ifdef INET6 |
---|
| 115 | static int inet6_makenetandmask(struct sockaddr_in6 *, char *); |
---|
| 116 | #endif |
---|
| 117 | int getaddr(), rtmsg(), x25_makemask(); |
---|
| 118 | int prefixlen(); |
---|
| 119 | extern char *iso_ntoa(); |
---|
| 120 | |
---|
| 121 | void usage(const char *) __dead2; |
---|
| 122 | |
---|
| 123 | void |
---|
| 124 | usage(cp) |
---|
| 125 | const char *cp; |
---|
| 126 | { |
---|
| 127 | if (cp) |
---|
| 128 | warnx("bad keyword: %s", cp); |
---|
| 129 | (void) fprintf(stderr, |
---|
| 130 | "usage: route [-dnqtv] command [[modifiers] args]\n"); |
---|
| 131 | exit(EX_USAGE); |
---|
| 132 | /* NOTREACHED */ |
---|
| 133 | } |
---|
| 134 | |
---|
[3ac9bb1] | 135 | #ifdef __rtems__ |
---|
[bd2941b] | 136 | int |
---|
[3ac9bb1] | 137 | main_route(argc, argv) |
---|
| 138 | #else |
---|
| 139 | main(argc, argv) |
---|
| 140 | #endif |
---|
[bd2941b] | 141 | int argc; |
---|
| 142 | char **argv; |
---|
| 143 | { |
---|
| 144 | int ch; |
---|
| 145 | |
---|
| 146 | if (argc < 2) |
---|
| 147 | usage((char *)NULL); |
---|
| 148 | |
---|
| 149 | while ((ch = getopt(argc, argv, "nqdtv")) != -1) |
---|
| 150 | switch(ch) { |
---|
| 151 | case 'n': |
---|
| 152 | nflag = 1; |
---|
| 153 | break; |
---|
| 154 | case 'q': |
---|
| 155 | qflag = 1; |
---|
| 156 | break; |
---|
| 157 | case 'v': |
---|
| 158 | verbose = 1; |
---|
| 159 | break; |
---|
| 160 | case 't': |
---|
| 161 | tflag = 1; |
---|
| 162 | break; |
---|
| 163 | case 'd': |
---|
| 164 | debugonly = 1; |
---|
| 165 | break; |
---|
| 166 | case '?': |
---|
| 167 | default: |
---|
| 168 | usage((char *)NULL); |
---|
| 169 | } |
---|
| 170 | argc -= optind; |
---|
| 171 | argv += optind; |
---|
| 172 | |
---|
| 173 | pid = getpid(); |
---|
| 174 | uid = geteuid(); |
---|
| 175 | if (tflag) |
---|
| 176 | s = open(_PATH_DEVNULL, O_WRONLY, 0); |
---|
| 177 | else |
---|
| 178 | s = socket(PF_ROUTE, SOCK_RAW, 0); |
---|
| 179 | if (s < 0) |
---|
| 180 | err(EX_OSERR, "socket"); |
---|
| 181 | if (*argv) |
---|
| 182 | switch (keyword(*argv)) { |
---|
| 183 | case K_GET: |
---|
| 184 | case K_SHOW: |
---|
| 185 | uid = 0; |
---|
| 186 | /* FALLTHROUGH */ |
---|
| 187 | |
---|
| 188 | case K_CHANGE: |
---|
| 189 | case K_ADD: |
---|
| 190 | case K_DEL: |
---|
| 191 | case K_DELETE: |
---|
| 192 | newroute(argc, argv); |
---|
| 193 | /* NOTREACHED */ |
---|
| 194 | |
---|
| 195 | case K_MONITOR: |
---|
| 196 | monitor(); |
---|
| 197 | /* NOTREACHED */ |
---|
| 198 | |
---|
| 199 | case K_FLUSH: |
---|
| 200 | flushroutes(argc, argv); |
---|
| 201 | exit(0); |
---|
| 202 | /* NOTREACHED */ |
---|
| 203 | } |
---|
| 204 | usage(*argv); |
---|
| 205 | /* NOTREACHED */ |
---|
| 206 | } |
---|
| 207 | |
---|
| 208 | /* |
---|
| 209 | * Purge all entries in the routing tables not |
---|
| 210 | * associated with network interfaces. |
---|
| 211 | */ |
---|
| 212 | void |
---|
| 213 | flushroutes(argc, argv) |
---|
| 214 | int argc; |
---|
| 215 | char *argv[]; |
---|
| 216 | { |
---|
| 217 | size_t needed; |
---|
| 218 | int mib[6], rlen, seqno, count = 0; |
---|
| 219 | char *buf, *next, *lim; |
---|
| 220 | struct rt_msghdr *rtm; |
---|
| 221 | |
---|
| 222 | if (uid && !debugonly) { |
---|
| 223 | errx(EX_NOPERM, "must be root to alter routing table"); |
---|
| 224 | } |
---|
| 225 | shutdown(s, SHUT_RD); /* Don't want to read back our messages */ |
---|
| 226 | if (argc > 1) { |
---|
| 227 | argv++; |
---|
| 228 | if (argc == 2 && **argv == '-') |
---|
| 229 | switch (keyword(*argv + 1)) { |
---|
| 230 | case K_INET: |
---|
| 231 | af = AF_INET; |
---|
| 232 | break; |
---|
| 233 | #ifdef INET6 |
---|
| 234 | case K_INET6: |
---|
| 235 | af = AF_INET6; |
---|
| 236 | break; |
---|
| 237 | #endif |
---|
| 238 | case K_ATALK: |
---|
| 239 | af = AF_APPLETALK; |
---|
| 240 | break; |
---|
| 241 | case K_LINK: |
---|
| 242 | af = AF_LINK; |
---|
| 243 | break; |
---|
| 244 | default: |
---|
| 245 | goto bad; |
---|
| 246 | } else |
---|
| 247 | bad: usage(*argv); |
---|
| 248 | } |
---|
| 249 | retry: |
---|
| 250 | mib[0] = CTL_NET; |
---|
| 251 | mib[1] = PF_ROUTE; |
---|
| 252 | mib[2] = 0; /* protocol */ |
---|
| 253 | mib[3] = 0; /* wildcard address family */ |
---|
| 254 | mib[4] = NET_RT_DUMP; |
---|
| 255 | mib[5] = 0; /* no flags */ |
---|
| 256 | if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) |
---|
| 257 | err(EX_OSERR, "route-sysctl-estimate"); |
---|
| 258 | if ((buf = malloc(needed)) == NULL) |
---|
| 259 | errx(EX_OSERR, "malloc failed"); |
---|
| 260 | if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { |
---|
| 261 | if (errno == ENOMEM && count++ < 10) { |
---|
| 262 | warnx("Routing table grew, retrying"); |
---|
| 263 | sleep(1); |
---|
| 264 | free(buf); |
---|
| 265 | goto retry; |
---|
| 266 | } |
---|
| 267 | err(EX_OSERR, "route-sysctl-get"); |
---|
| 268 | } |
---|
| 269 | lim = buf + needed; |
---|
| 270 | if (verbose) |
---|
| 271 | (void) printf("Examining routing table from sysctl\n"); |
---|
| 272 | seqno = 0; /* ??? */ |
---|
| 273 | for (next = buf; next < lim; next += rtm->rtm_msglen) { |
---|
| 274 | rtm = (struct rt_msghdr *)next; |
---|
| 275 | if (verbose) |
---|
| 276 | print_rtmsg(rtm, rtm->rtm_msglen); |
---|
| 277 | if ((rtm->rtm_flags & RTF_GATEWAY) == 0) |
---|
| 278 | continue; |
---|
| 279 | if (af) { |
---|
| 280 | struct sockaddr *sa = (struct sockaddr *)(rtm + 1); |
---|
| 281 | |
---|
| 282 | if (sa->sa_family != af) |
---|
| 283 | continue; |
---|
| 284 | } |
---|
| 285 | if (debugonly) |
---|
| 286 | continue; |
---|
| 287 | rtm->rtm_type = RTM_DELETE; |
---|
| 288 | rtm->rtm_seq = seqno; |
---|
| 289 | rlen = write(s, next, rtm->rtm_msglen); |
---|
| 290 | if (rlen < 0 && errno == EPERM) |
---|
| 291 | err(1, "write to routing socket"); |
---|
| 292 | if (rlen < (int)rtm->rtm_msglen) { |
---|
| 293 | warn("write to routing socket"); |
---|
| 294 | (void) printf("got only %d for rlen\n", rlen); |
---|
| 295 | free(buf); |
---|
| 296 | goto retry; |
---|
| 297 | break; |
---|
| 298 | } |
---|
| 299 | seqno++; |
---|
| 300 | if (qflag) |
---|
| 301 | continue; |
---|
| 302 | if (verbose) |
---|
| 303 | print_rtmsg(rtm, rlen); |
---|
| 304 | else { |
---|
| 305 | struct sockaddr *sa = (struct sockaddr *)(rtm + 1); |
---|
| 306 | (void) printf("%-20.20s ", rtm->rtm_flags & RTF_HOST ? |
---|
| 307 | routename(sa) : netname(sa)); |
---|
| 308 | sa = (struct sockaddr *)(SA_SIZE(sa) + (char *)sa); |
---|
| 309 | (void) printf("%-20.20s ", routename(sa)); |
---|
| 310 | (void) printf("done\n"); |
---|
| 311 | } |
---|
| 312 | } |
---|
| 313 | } |
---|
| 314 | |
---|
| 315 | const char * |
---|
| 316 | routename(sa) |
---|
| 317 | struct sockaddr *sa; |
---|
| 318 | { |
---|
| 319 | char *cp; |
---|
| 320 | static char line[MAXHOSTNAMELEN + 1]; |
---|
| 321 | struct hostent *hp; |
---|
| 322 | static char domain[MAXHOSTNAMELEN + 1]; |
---|
| 323 | static int first = 1, n; |
---|
| 324 | |
---|
| 325 | if (first) { |
---|
| 326 | first = 0; |
---|
| 327 | if (gethostname(domain, MAXHOSTNAMELEN) == 0 && |
---|
| 328 | (cp = strchr(domain, '.'))) { |
---|
| 329 | domain[MAXHOSTNAMELEN] = '\0'; |
---|
| 330 | (void) strcpy(domain, cp + 1); |
---|
| 331 | } else |
---|
| 332 | domain[0] = 0; |
---|
| 333 | } |
---|
| 334 | |
---|
| 335 | if (sa->sa_len == 0) |
---|
| 336 | strcpy(line, "default"); |
---|
| 337 | else switch (sa->sa_family) { |
---|
| 338 | |
---|
| 339 | case AF_INET: |
---|
| 340 | { struct in_addr in; |
---|
| 341 | in = ((struct sockaddr_in *)sa)->sin_addr; |
---|
| 342 | |
---|
| 343 | cp = 0; |
---|
| 344 | if (in.s_addr == INADDR_ANY || sa->sa_len < 4) |
---|
| 345 | cp = "default"; |
---|
| 346 | if (cp == 0 && !nflag) { |
---|
| 347 | hp = gethostbyaddr((char *)&in, sizeof (struct in_addr), |
---|
| 348 | AF_INET); |
---|
| 349 | if (hp) { |
---|
| 350 | if ((cp = strchr(hp->h_name, '.')) && |
---|
| 351 | !strcmp(cp + 1, domain)) |
---|
| 352 | *cp = 0; |
---|
| 353 | cp = hp->h_name; |
---|
| 354 | } |
---|
| 355 | } |
---|
| 356 | if (cp) { |
---|
| 357 | strncpy(line, cp, sizeof(line) - 1); |
---|
| 358 | line[sizeof(line) - 1] = '\0'; |
---|
| 359 | } else |
---|
| 360 | (void) sprintf(line, "%s", inet_ntoa(in)); |
---|
| 361 | break; |
---|
| 362 | } |
---|
| 363 | |
---|
| 364 | #ifdef INET6 |
---|
| 365 | case AF_INET6: |
---|
| 366 | { |
---|
| 367 | struct sockaddr_in6 sin6; /* use static var for safety */ |
---|
| 368 | int niflags = 0; |
---|
| 369 | |
---|
| 370 | memset(&sin6, 0, sizeof(sin6)); |
---|
| 371 | memcpy(&sin6, sa, sa->sa_len); |
---|
| 372 | sin6.sin6_len = sizeof(struct sockaddr_in6); |
---|
| 373 | sin6.sin6_family = AF_INET6; |
---|
| 374 | #ifdef __KAME__ |
---|
| 375 | if (sa->sa_len == sizeof(struct sockaddr_in6) && |
---|
| 376 | (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || |
---|
| 377 | IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && |
---|
| 378 | sin6.sin6_scope_id == 0) { |
---|
| 379 | sin6.sin6_scope_id = |
---|
| 380 | ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); |
---|
| 381 | sin6.sin6_addr.s6_addr[2] = 0; |
---|
| 382 | sin6.sin6_addr.s6_addr[3] = 0; |
---|
| 383 | } |
---|
| 384 | #endif |
---|
| 385 | if (nflag) |
---|
| 386 | niflags |= NI_NUMERICHOST; |
---|
| 387 | if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, |
---|
| 388 | line, sizeof(line), NULL, 0, niflags) != 0) |
---|
| 389 | strncpy(line, "invalid", sizeof(line)); |
---|
| 390 | |
---|
| 391 | return(line); |
---|
| 392 | } |
---|
| 393 | #endif |
---|
| 394 | |
---|
| 395 | case AF_APPLETALK: |
---|
| 396 | (void) snprintf(line, sizeof(line), "atalk %s", |
---|
| 397 | atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); |
---|
| 398 | break; |
---|
| 399 | |
---|
| 400 | case AF_LINK: |
---|
| 401 | return (link_ntoa((struct sockaddr_dl *)sa)); |
---|
| 402 | |
---|
| 403 | default: |
---|
| 404 | { u_short *s = (u_short *)sa; |
---|
| 405 | u_short *slim = s + ((sa->sa_len + 1) >> 1); |
---|
| 406 | char *cp = line + sprintf(line, "(%d)", sa->sa_family); |
---|
| 407 | char *cpe = line + sizeof(line); |
---|
| 408 | |
---|
| 409 | while (++s < slim && cp < cpe) /* start with sa->sa_data */ |
---|
| 410 | if ((n = snprintf(cp, cpe - cp, " %x", *s)) > 0) |
---|
| 411 | cp += n; |
---|
| 412 | else |
---|
| 413 | *cp = '\0'; |
---|
| 414 | break; |
---|
| 415 | } |
---|
| 416 | } |
---|
| 417 | return (line); |
---|
| 418 | } |
---|
| 419 | |
---|
| 420 | /* |
---|
| 421 | * Return the name of the network whose address is given. |
---|
| 422 | * The address is assumed to be that of a net or subnet, not a host. |
---|
| 423 | */ |
---|
| 424 | const char * |
---|
| 425 | netname(sa) |
---|
| 426 | struct sockaddr *sa; |
---|
| 427 | { |
---|
| 428 | char *cp = 0; |
---|
| 429 | static char line[MAXHOSTNAMELEN + 1]; |
---|
| 430 | struct netent *np = 0; |
---|
| 431 | u_long net, mask; |
---|
| 432 | u_long i; |
---|
| 433 | int n, subnetshift; |
---|
| 434 | |
---|
| 435 | switch (sa->sa_family) { |
---|
| 436 | |
---|
| 437 | case AF_INET: |
---|
| 438 | { struct in_addr in; |
---|
| 439 | in = ((struct sockaddr_in *)sa)->sin_addr; |
---|
| 440 | |
---|
| 441 | i = in.s_addr = ntohl(in.s_addr); |
---|
| 442 | if (in.s_addr == 0) |
---|
| 443 | cp = "default"; |
---|
| 444 | else if (!nflag) { |
---|
| 445 | if (IN_CLASSA(i)) { |
---|
| 446 | mask = IN_CLASSA_NET; |
---|
| 447 | subnetshift = 8; |
---|
| 448 | } else if (IN_CLASSB(i)) { |
---|
| 449 | mask = IN_CLASSB_NET; |
---|
| 450 | subnetshift = 8; |
---|
| 451 | } else { |
---|
| 452 | mask = IN_CLASSC_NET; |
---|
| 453 | subnetshift = 4; |
---|
| 454 | } |
---|
| 455 | /* |
---|
| 456 | * If there are more bits than the standard mask |
---|
| 457 | * would suggest, subnets must be in use. |
---|
| 458 | * Guess at the subnet mask, assuming reasonable |
---|
| 459 | * width subnet fields. |
---|
| 460 | */ |
---|
| 461 | while (in.s_addr &~ mask) |
---|
| 462 | mask = (long)mask >> subnetshift; |
---|
| 463 | net = in.s_addr & mask; |
---|
| 464 | while ((mask & 1) == 0) |
---|
| 465 | mask >>= 1, net >>= 1; |
---|
| 466 | np = getnetbyaddr(net, AF_INET); |
---|
| 467 | if (np) |
---|
| 468 | cp = np->n_name; |
---|
| 469 | } |
---|
| 470 | #define C(x) (unsigned)((x) & 0xff) |
---|
| 471 | if (cp) |
---|
| 472 | strncpy(line, cp, sizeof(line)); |
---|
| 473 | else if ((in.s_addr & 0xffffff) == 0) |
---|
| 474 | (void) sprintf(line, "%u", C(in.s_addr >> 24)); |
---|
| 475 | else if ((in.s_addr & 0xffff) == 0) |
---|
| 476 | (void) sprintf(line, "%u.%u", C(in.s_addr >> 24), |
---|
| 477 | C(in.s_addr >> 16)); |
---|
| 478 | else if ((in.s_addr & 0xff) == 0) |
---|
| 479 | (void) sprintf(line, "%u.%u.%u", C(in.s_addr >> 24), |
---|
| 480 | C(in.s_addr >> 16), C(in.s_addr >> 8)); |
---|
| 481 | else |
---|
| 482 | (void) sprintf(line, "%u.%u.%u.%u", C(in.s_addr >> 24), |
---|
| 483 | C(in.s_addr >> 16), C(in.s_addr >> 8), |
---|
| 484 | C(in.s_addr)); |
---|
| 485 | #undef C |
---|
| 486 | break; |
---|
| 487 | } |
---|
| 488 | |
---|
| 489 | #ifdef INET6 |
---|
| 490 | case AF_INET6: |
---|
| 491 | { |
---|
| 492 | struct sockaddr_in6 sin6; /* use static var for safety */ |
---|
| 493 | int niflags = 0; |
---|
| 494 | |
---|
| 495 | memset(&sin6, 0, sizeof(sin6)); |
---|
| 496 | memcpy(&sin6, sa, sa->sa_len); |
---|
| 497 | sin6.sin6_len = sizeof(struct sockaddr_in6); |
---|
| 498 | sin6.sin6_family = AF_INET6; |
---|
| 499 | #ifdef __KAME__ |
---|
| 500 | if (sa->sa_len == sizeof(struct sockaddr_in6) && |
---|
| 501 | (IN6_IS_ADDR_LINKLOCAL(&sin6.sin6_addr) || |
---|
| 502 | IN6_IS_ADDR_MC_LINKLOCAL(&sin6.sin6_addr)) && |
---|
| 503 | sin6.sin6_scope_id == 0) { |
---|
| 504 | sin6.sin6_scope_id = |
---|
| 505 | ntohs(*(u_int16_t *)&sin6.sin6_addr.s6_addr[2]); |
---|
| 506 | sin6.sin6_addr.s6_addr[2] = 0; |
---|
| 507 | sin6.sin6_addr.s6_addr[3] = 0; |
---|
| 508 | } |
---|
| 509 | #endif |
---|
| 510 | if (nflag) |
---|
| 511 | niflags |= NI_NUMERICHOST; |
---|
| 512 | if (getnameinfo((struct sockaddr *)&sin6, sin6.sin6_len, |
---|
| 513 | line, sizeof(line), NULL, 0, niflags) != 0) |
---|
| 514 | strncpy(line, "invalid", sizeof(line)); |
---|
| 515 | |
---|
| 516 | return(line); |
---|
| 517 | } |
---|
| 518 | #endif |
---|
| 519 | |
---|
| 520 | case AF_APPLETALK: |
---|
| 521 | (void) snprintf(line, sizeof(line), "atalk %s", |
---|
| 522 | atalk_ntoa(((struct sockaddr_at *)sa)->sat_addr)); |
---|
| 523 | break; |
---|
| 524 | |
---|
| 525 | case AF_LINK: |
---|
| 526 | return (link_ntoa((struct sockaddr_dl *)sa)); |
---|
| 527 | |
---|
| 528 | |
---|
| 529 | default: |
---|
| 530 | { u_short *s = (u_short *)sa->sa_data; |
---|
| 531 | u_short *slim = s + ((sa->sa_len + 1)>>1); |
---|
| 532 | char *cp = line + sprintf(line, "af %d:", sa->sa_family); |
---|
| 533 | char *cpe = line + sizeof(line); |
---|
| 534 | |
---|
| 535 | while (s < slim && cp < cpe) |
---|
| 536 | if ((n = snprintf(cp, cpe - cp, " %x", *s++)) > 0) |
---|
| 537 | cp += n; |
---|
| 538 | else |
---|
| 539 | *cp = '\0'; |
---|
| 540 | break; |
---|
| 541 | } |
---|
| 542 | } |
---|
| 543 | return (line); |
---|
| 544 | } |
---|
| 545 | |
---|
| 546 | void |
---|
| 547 | set_metric(value, key) |
---|
| 548 | char *value; |
---|
| 549 | int key; |
---|
| 550 | { |
---|
| 551 | int flag = 0; |
---|
| 552 | u_long noval, *valp = &noval; |
---|
| 553 | |
---|
| 554 | switch (key) { |
---|
| 555 | #define caseof(x, y, z) case x: valp = &rt_metrics.z; flag = y; break |
---|
| 556 | caseof(K_MTU, RTV_MTU, rmx_mtu); |
---|
| 557 | caseof(K_HOPCOUNT, RTV_HOPCOUNT, rmx_hopcount); |
---|
| 558 | caseof(K_EXPIRE, RTV_EXPIRE, rmx_expire); |
---|
| 559 | caseof(K_RECVPIPE, RTV_RPIPE, rmx_recvpipe); |
---|
| 560 | caseof(K_SENDPIPE, RTV_SPIPE, rmx_sendpipe); |
---|
| 561 | caseof(K_SSTHRESH, RTV_SSTHRESH, rmx_ssthresh); |
---|
| 562 | caseof(K_RTT, RTV_RTT, rmx_rtt); |
---|
| 563 | caseof(K_RTTVAR, RTV_RTTVAR, rmx_rttvar); |
---|
| 564 | caseof(K_WEIGHT, RTV_WEIGHT, rmx_weight); |
---|
| 565 | } |
---|
| 566 | rtm_inits |= flag; |
---|
| 567 | if (lockrest || locking) |
---|
| 568 | rt_metrics.rmx_locks |= flag; |
---|
| 569 | if (locking) |
---|
| 570 | locking = 0; |
---|
| 571 | *valp = atoi(value); |
---|
| 572 | } |
---|
| 573 | |
---|
| 574 | void |
---|
| 575 | newroute(argc, argv) |
---|
| 576 | int argc; |
---|
| 577 | char **argv; |
---|
| 578 | { |
---|
| 579 | char *cmd, *dest = "", *gateway = "", *err; |
---|
| 580 | int ishost = 0, proxy = 0, ret, attempts, oerrno, flags = RTF_STATIC; |
---|
| 581 | int key; |
---|
| 582 | struct hostent *hp = 0; |
---|
| 583 | |
---|
| 584 | if (uid) { |
---|
| 585 | errx(EX_NOPERM, "must be root to alter routing table"); |
---|
| 586 | } |
---|
| 587 | cmd = argv[0]; |
---|
| 588 | if (*cmd != 'g' && *cmd != 's') |
---|
| 589 | shutdown(s, SHUT_RD); /* Don't want to read back our messages */ |
---|
| 590 | |
---|
| 591 | while (--argc > 0) { |
---|
| 592 | if (**(++argv)== '-') { |
---|
| 593 | switch (key = keyword(1 + *argv)) { |
---|
| 594 | case K_LINK: |
---|
| 595 | af = AF_LINK; |
---|
| 596 | aflen = sizeof(struct sockaddr_dl); |
---|
| 597 | break; |
---|
| 598 | case K_INET: |
---|
| 599 | af = AF_INET; |
---|
| 600 | aflen = sizeof(struct sockaddr_in); |
---|
| 601 | break; |
---|
| 602 | #ifdef INET6 |
---|
| 603 | case K_INET6: |
---|
| 604 | af = AF_INET6; |
---|
| 605 | aflen = sizeof(struct sockaddr_in6); |
---|
| 606 | break; |
---|
| 607 | #endif |
---|
| 608 | case K_ATALK: |
---|
| 609 | af = AF_APPLETALK; |
---|
| 610 | aflen = sizeof(struct sockaddr_at); |
---|
| 611 | break; |
---|
| 612 | case K_SA: |
---|
| 613 | af = PF_ROUTE; |
---|
| 614 | aflen = sizeof(union sockunion); |
---|
| 615 | break; |
---|
| 616 | case K_IFACE: |
---|
| 617 | case K_INTERFACE: |
---|
| 618 | iflag++; |
---|
| 619 | break; |
---|
| 620 | case K_NOSTATIC: |
---|
| 621 | flags &= ~RTF_STATIC; |
---|
| 622 | break; |
---|
| 623 | case K_LOCK: |
---|
| 624 | locking = 1; |
---|
| 625 | break; |
---|
| 626 | case K_LOCKREST: |
---|
| 627 | lockrest = 1; |
---|
| 628 | break; |
---|
| 629 | case K_HOST: |
---|
| 630 | forcehost++; |
---|
| 631 | break; |
---|
| 632 | case K_REJECT: |
---|
| 633 | flags |= RTF_REJECT; |
---|
| 634 | break; |
---|
| 635 | case K_BLACKHOLE: |
---|
| 636 | flags |= RTF_BLACKHOLE; |
---|
| 637 | break; |
---|
| 638 | case K_PROTO1: |
---|
| 639 | flags |= RTF_PROTO1; |
---|
| 640 | break; |
---|
| 641 | case K_PROTO2: |
---|
| 642 | flags |= RTF_PROTO2; |
---|
| 643 | break; |
---|
| 644 | case K_PROXY: |
---|
| 645 | proxy = 1; |
---|
| 646 | break; |
---|
| 647 | case K_XRESOLVE: |
---|
| 648 | flags |= RTF_XRESOLVE; |
---|
| 649 | break; |
---|
| 650 | case K_STATIC: |
---|
| 651 | flags |= RTF_STATIC; |
---|
| 652 | break; |
---|
| 653 | case K_STICKY: |
---|
| 654 | flags |= RTF_STICKY; |
---|
| 655 | break; |
---|
| 656 | case K_NOSTICK: |
---|
| 657 | flags &= ~RTF_STICKY; |
---|
| 658 | break; |
---|
| 659 | case K_IFA: |
---|
| 660 | if (!--argc) |
---|
| 661 | usage((char *)NULL); |
---|
| 662 | (void) getaddr(RTA_IFA, *++argv, 0); |
---|
| 663 | break; |
---|
| 664 | case K_IFP: |
---|
| 665 | if (!--argc) |
---|
| 666 | usage((char *)NULL); |
---|
| 667 | (void) getaddr(RTA_IFP, *++argv, 0); |
---|
| 668 | break; |
---|
| 669 | case K_GENMASK: |
---|
| 670 | if (!--argc) |
---|
| 671 | usage((char *)NULL); |
---|
| 672 | (void) getaddr(RTA_GENMASK, *++argv, 0); |
---|
| 673 | break; |
---|
| 674 | case K_GATEWAY: |
---|
| 675 | if (!--argc) |
---|
| 676 | usage((char *)NULL); |
---|
| 677 | (void) getaddr(RTA_GATEWAY, *++argv, 0); |
---|
| 678 | break; |
---|
| 679 | case K_DST: |
---|
| 680 | if (!--argc) |
---|
| 681 | usage((char *)NULL); |
---|
| 682 | ishost = getaddr(RTA_DST, *++argv, &hp); |
---|
| 683 | dest = *argv; |
---|
| 684 | break; |
---|
| 685 | case K_NETMASK: |
---|
| 686 | if (!--argc) |
---|
| 687 | usage((char *)NULL); |
---|
| 688 | (void) getaddr(RTA_NETMASK, *++argv, 0); |
---|
| 689 | /* FALLTHROUGH */ |
---|
| 690 | case K_NET: |
---|
| 691 | forcenet++; |
---|
| 692 | break; |
---|
| 693 | case K_PREFIXLEN: |
---|
| 694 | if (!--argc) |
---|
| 695 | usage((char *)NULL); |
---|
| 696 | if (prefixlen(*++argv) == -1) { |
---|
| 697 | forcenet = 0; |
---|
| 698 | ishost = 1; |
---|
| 699 | } else { |
---|
| 700 | forcenet = 1; |
---|
| 701 | ishost = 0; |
---|
| 702 | } |
---|
| 703 | break; |
---|
| 704 | case K_MTU: |
---|
| 705 | case K_HOPCOUNT: |
---|
| 706 | case K_EXPIRE: |
---|
| 707 | case K_RECVPIPE: |
---|
| 708 | case K_SENDPIPE: |
---|
| 709 | case K_SSTHRESH: |
---|
| 710 | case K_RTT: |
---|
| 711 | case K_RTTVAR: |
---|
| 712 | case K_WEIGHT: |
---|
| 713 | if (!--argc) |
---|
| 714 | usage((char *)NULL); |
---|
| 715 | set_metric(*++argv, key); |
---|
| 716 | break; |
---|
| 717 | default: |
---|
| 718 | usage(1+*argv); |
---|
| 719 | } |
---|
| 720 | } else { |
---|
| 721 | if ((rtm_addrs & RTA_DST) == 0) { |
---|
| 722 | dest = *argv; |
---|
| 723 | ishost = getaddr(RTA_DST, *argv, &hp); |
---|
| 724 | } else if ((rtm_addrs & RTA_GATEWAY) == 0) { |
---|
| 725 | gateway = *argv; |
---|
| 726 | (void) getaddr(RTA_GATEWAY, *argv, &hp); |
---|
| 727 | } else { |
---|
| 728 | (void) getaddr(RTA_NETMASK, *argv, 0); |
---|
| 729 | forcenet = 1; |
---|
| 730 | } |
---|
| 731 | } |
---|
| 732 | } |
---|
| 733 | if (forcehost) { |
---|
| 734 | ishost = 1; |
---|
| 735 | #ifdef INET6 |
---|
| 736 | if (af == AF_INET6) { |
---|
| 737 | rtm_addrs &= ~RTA_NETMASK; |
---|
| 738 | memset((void *)&so_mask, 0, sizeof(so_mask)); |
---|
| 739 | } |
---|
| 740 | #endif |
---|
| 741 | } |
---|
| 742 | if (forcenet) |
---|
| 743 | ishost = 0; |
---|
| 744 | flags |= RTF_UP; |
---|
| 745 | if (ishost) |
---|
| 746 | flags |= RTF_HOST; |
---|
| 747 | if (iflag == 0) |
---|
| 748 | flags |= RTF_GATEWAY; |
---|
| 749 | if (proxy) { |
---|
| 750 | so_dst.sinarp.sin_other = SIN_PROXY; |
---|
| 751 | flags |= RTF_ANNOUNCE; |
---|
| 752 | } |
---|
| 753 | for (attempts = 1; ; attempts++) { |
---|
| 754 | errno = 0; |
---|
| 755 | if ((ret = rtmsg(*cmd, flags)) == 0) |
---|
| 756 | break; |
---|
| 757 | if (errno != ENETUNREACH && errno != ESRCH) |
---|
| 758 | break; |
---|
| 759 | if (af == AF_INET && *gateway && hp && hp->h_addr_list[1]) { |
---|
| 760 | hp->h_addr_list++; |
---|
| 761 | memmove(&so_gate.sin.sin_addr, hp->h_addr_list[0], |
---|
| 762 | MIN(hp->h_length, sizeof(so_gate.sin.sin_addr))); |
---|
| 763 | } else |
---|
| 764 | break; |
---|
| 765 | } |
---|
| 766 | if (*cmd == 'g' || *cmd == 's') |
---|
| 767 | exit(ret != 0); |
---|
| 768 | if (!qflag) { |
---|
| 769 | oerrno = errno; |
---|
| 770 | (void) printf("%s %s %s", cmd, ishost? "host" : "net", dest); |
---|
| 771 | if (*gateway) { |
---|
| 772 | (void) printf(": gateway %s", gateway); |
---|
| 773 | if (attempts > 1 && ret == 0 && af == AF_INET) |
---|
| 774 | (void) printf(" (%s)", |
---|
| 775 | inet_ntoa(((struct sockaddr_in *)&route.rt_gateway)->sin_addr)); |
---|
| 776 | } |
---|
| 777 | if (ret == 0) { |
---|
| 778 | (void) printf("\n"); |
---|
| 779 | } else { |
---|
| 780 | switch (oerrno) { |
---|
| 781 | case ESRCH: |
---|
| 782 | err = "not in table"; |
---|
| 783 | break; |
---|
| 784 | case EBUSY: |
---|
| 785 | err = "entry in use"; |
---|
| 786 | break; |
---|
| 787 | case ENOBUFS: |
---|
| 788 | err = "not enough memory"; |
---|
| 789 | break; |
---|
| 790 | case EADDRINUSE: |
---|
| 791 | /* handle recursion avoidance in rt_setgate() */ |
---|
| 792 | err = "gateway uses the same route"; |
---|
| 793 | break; |
---|
| 794 | case EEXIST: |
---|
| 795 | err = "route already in table"; |
---|
| 796 | break; |
---|
| 797 | default: |
---|
| 798 | err = strerror(oerrno); |
---|
| 799 | break; |
---|
| 800 | } |
---|
| 801 | (void) printf(": %s\n", err); |
---|
| 802 | } |
---|
| 803 | } |
---|
| 804 | exit(ret != 0); |
---|
| 805 | } |
---|
| 806 | |
---|
| 807 | void |
---|
| 808 | inet_makenetandmask(net, sin, bits) |
---|
| 809 | u_long net, bits; |
---|
| 810 | struct sockaddr_in *sin; |
---|
| 811 | { |
---|
| 812 | u_long addr, mask = 0; |
---|
| 813 | char *cp; |
---|
| 814 | |
---|
| 815 | rtm_addrs |= RTA_NETMASK; |
---|
| 816 | /* |
---|
| 817 | * XXX: This approach unable to handle 0.0.0.1/32 correctly |
---|
| 818 | * as inet_network() converts 0.0.0.1 and 1 equally. |
---|
| 819 | */ |
---|
| 820 | if (net <= 0xff) |
---|
| 821 | addr = net << IN_CLASSA_NSHIFT; |
---|
| 822 | else if (net <= 0xffff) |
---|
| 823 | addr = net << IN_CLASSB_NSHIFT; |
---|
| 824 | else if (net <= 0xffffff) |
---|
| 825 | addr = net << IN_CLASSC_NSHIFT; |
---|
| 826 | else |
---|
| 827 | addr = net; |
---|
| 828 | /* |
---|
| 829 | * If no /xx was specified we must cacluate the |
---|
| 830 | * CIDR address. |
---|
| 831 | */ |
---|
| 832 | if ((bits == 0) && (addr != 0)) { |
---|
| 833 | u_long i, j; |
---|
| 834 | for(i=0,j=0xff; i<4; i++) { |
---|
| 835 | if (addr & j) { |
---|
| 836 | break; |
---|
| 837 | } |
---|
| 838 | j <<= 8; |
---|
| 839 | } |
---|
| 840 | /* i holds the first non zero bit */ |
---|
| 841 | bits = 32 - (i*8); |
---|
| 842 | } |
---|
| 843 | if (bits != 0) |
---|
| 844 | mask = 0xffffffff << (32 - bits); |
---|
| 845 | |
---|
| 846 | sin->sin_addr.s_addr = htonl(addr); |
---|
| 847 | sin = &so_mask.sin; |
---|
| 848 | sin->sin_addr.s_addr = htonl(mask); |
---|
| 849 | sin->sin_len = 0; |
---|
| 850 | sin->sin_family = 0; |
---|
| 851 | cp = (char *)(&sin->sin_addr + 1); |
---|
| 852 | while (*--cp == 0 && cp > (char *)sin) |
---|
| 853 | ; |
---|
| 854 | sin->sin_len = 1 + cp - (char *)sin; |
---|
| 855 | } |
---|
| 856 | |
---|
| 857 | #ifdef INET6 |
---|
| 858 | /* |
---|
| 859 | * XXX the function may need more improvement... |
---|
| 860 | */ |
---|
| 861 | static int |
---|
| 862 | inet6_makenetandmask(sin6, plen) |
---|
| 863 | struct sockaddr_in6 *sin6; |
---|
| 864 | char *plen; |
---|
| 865 | { |
---|
| 866 | struct in6_addr in6; |
---|
| 867 | |
---|
| 868 | if (!plen) { |
---|
| 869 | if (IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr) && |
---|
| 870 | sin6->sin6_scope_id == 0) { |
---|
| 871 | plen = "0"; |
---|
| 872 | } else if ((sin6->sin6_addr.s6_addr[0] & 0xe0) == 0x20) { |
---|
| 873 | /* aggregatable global unicast - RFC2374 */ |
---|
| 874 | memset(&in6, 0, sizeof(in6)); |
---|
| 875 | if (!memcmp(&sin6->sin6_addr.s6_addr[8], |
---|
| 876 | &in6.s6_addr[8], 8)) |
---|
| 877 | plen = "64"; |
---|
| 878 | } |
---|
| 879 | } |
---|
| 880 | |
---|
| 881 | if (!plen || strcmp(plen, "128") == 0) |
---|
| 882 | return 1; |
---|
| 883 | rtm_addrs |= RTA_NETMASK; |
---|
| 884 | (void)prefixlen(plen); |
---|
| 885 | return 0; |
---|
| 886 | } |
---|
| 887 | #endif |
---|
| 888 | |
---|
| 889 | /* |
---|
| 890 | * Interpret an argument as a network address of some kind, |
---|
| 891 | * returning 1 if a host address, 0 if a network address. |
---|
| 892 | */ |
---|
| 893 | int |
---|
| 894 | getaddr(which, s, hpp) |
---|
| 895 | int which; |
---|
| 896 | char *s; |
---|
| 897 | struct hostent **hpp; |
---|
| 898 | { |
---|
| 899 | sup su; |
---|
| 900 | struct hostent *hp; |
---|
| 901 | struct netent *np; |
---|
| 902 | u_long val; |
---|
| 903 | char *q; |
---|
| 904 | int afamily; /* local copy of af so we can change it */ |
---|
| 905 | |
---|
| 906 | if (af == 0) { |
---|
| 907 | af = AF_INET; |
---|
| 908 | aflen = sizeof(struct sockaddr_in); |
---|
| 909 | } |
---|
| 910 | afamily = af; |
---|
| 911 | rtm_addrs |= which; |
---|
| 912 | switch (which) { |
---|
| 913 | case RTA_DST: |
---|
| 914 | su = &so_dst; |
---|
| 915 | break; |
---|
| 916 | case RTA_GATEWAY: |
---|
| 917 | su = &so_gate; |
---|
| 918 | if (iflag) { |
---|
| 919 | struct ifaddrs *ifap, *ifa; |
---|
| 920 | struct sockaddr_dl *sdl = NULL; |
---|
| 921 | |
---|
| 922 | if (getifaddrs(&ifap)) |
---|
| 923 | err(1, "getifaddrs"); |
---|
| 924 | |
---|
| 925 | for (ifa = ifap; ifa; ifa = ifa->ifa_next) { |
---|
| 926 | if (ifa->ifa_addr->sa_family != AF_LINK) |
---|
| 927 | continue; |
---|
| 928 | |
---|
| 929 | if (strcmp(s, ifa->ifa_name)) |
---|
| 930 | continue; |
---|
| 931 | |
---|
| 932 | sdl = (struct sockaddr_dl *)ifa->ifa_addr; |
---|
| 933 | } |
---|
| 934 | /* If we found it, then use it */ |
---|
| 935 | if (sdl) { |
---|
| 936 | /* |
---|
| 937 | * Copy is safe since we have a |
---|
| 938 | * sockaddr_storage member in sockunion{}. |
---|
| 939 | * Note that we need to copy before calling |
---|
| 940 | * freeifaddrs(). |
---|
| 941 | */ |
---|
| 942 | memcpy(&su->sdl, sdl, sdl->sdl_len); |
---|
| 943 | } |
---|
| 944 | freeifaddrs(ifap); |
---|
| 945 | if (sdl) |
---|
| 946 | return(1); |
---|
| 947 | } |
---|
| 948 | break; |
---|
| 949 | case RTA_NETMASK: |
---|
| 950 | su = &so_mask; |
---|
| 951 | break; |
---|
| 952 | case RTA_GENMASK: |
---|
| 953 | su = &so_genmask; |
---|
| 954 | break; |
---|
| 955 | case RTA_IFP: |
---|
| 956 | su = &so_ifp; |
---|
| 957 | afamily = AF_LINK; |
---|
| 958 | break; |
---|
| 959 | case RTA_IFA: |
---|
| 960 | su = &so_ifa; |
---|
| 961 | break; |
---|
| 962 | default: |
---|
| 963 | usage("internal error"); |
---|
| 964 | /*NOTREACHED*/ |
---|
| 965 | } |
---|
| 966 | su->sa.sa_len = aflen; |
---|
| 967 | su->sa.sa_family = afamily; /* cases that don't want it have left already */ |
---|
| 968 | if (strcmp(s, "default") == 0) { |
---|
| 969 | /* |
---|
| 970 | * Default is net 0.0.0.0/0 |
---|
| 971 | */ |
---|
| 972 | switch (which) { |
---|
| 973 | case RTA_DST: |
---|
| 974 | forcenet++; |
---|
| 975 | #if 0 |
---|
| 976 | bzero(su, sizeof(*su)); /* for readability */ |
---|
| 977 | #endif |
---|
| 978 | (void) getaddr(RTA_NETMASK, s, 0); |
---|
| 979 | break; |
---|
| 980 | #if 0 |
---|
| 981 | case RTA_NETMASK: |
---|
| 982 | case RTA_GENMASK: |
---|
| 983 | bzero(su, sizeof(*su)); /* for readability */ |
---|
| 984 | #endif |
---|
| 985 | } |
---|
| 986 | return (0); |
---|
| 987 | } |
---|
| 988 | switch (afamily) { |
---|
| 989 | #ifdef INET6 |
---|
| 990 | case AF_INET6: |
---|
| 991 | { |
---|
| 992 | struct addrinfo hints, *res; |
---|
| 993 | int ecode; |
---|
| 994 | |
---|
| 995 | q = NULL; |
---|
| 996 | if (which == RTA_DST && (q = strchr(s, '/')) != NULL) |
---|
| 997 | *q = '\0'; |
---|
| 998 | memset(&hints, 0, sizeof(hints)); |
---|
| 999 | hints.ai_family = afamily; /*AF_INET6*/ |
---|
| 1000 | hints.ai_socktype = SOCK_DGRAM; /*dummy*/ |
---|
| 1001 | ecode = getaddrinfo(s, NULL, &hints, &res); |
---|
| 1002 | if (ecode != 0 || res->ai_family != AF_INET6 || |
---|
| 1003 | res->ai_addrlen != sizeof(su->sin6)) { |
---|
| 1004 | (void) fprintf(stderr, "%s: %s\n", s, |
---|
| 1005 | gai_strerror(ecode)); |
---|
| 1006 | exit(1); |
---|
| 1007 | } |
---|
| 1008 | memcpy(&su->sin6, res->ai_addr, sizeof(su->sin6)); |
---|
| 1009 | #ifdef __KAME__ |
---|
| 1010 | if ((IN6_IS_ADDR_LINKLOCAL(&su->sin6.sin6_addr) || |
---|
| 1011 | IN6_IS_ADDR_MC_LINKLOCAL(&su->sin6.sin6_addr)) && |
---|
| 1012 | su->sin6.sin6_scope_id) { |
---|
| 1013 | *(u_int16_t *)&su->sin6.sin6_addr.s6_addr[2] = |
---|
| 1014 | htons(su->sin6.sin6_scope_id); |
---|
| 1015 | su->sin6.sin6_scope_id = 0; |
---|
| 1016 | } |
---|
| 1017 | #endif |
---|
| 1018 | freeaddrinfo(res); |
---|
| 1019 | if (q != NULL) |
---|
| 1020 | *q++ = '/'; |
---|
| 1021 | if (which == RTA_DST) |
---|
| 1022 | return (inet6_makenetandmask(&su->sin6, q)); |
---|
| 1023 | return (0); |
---|
| 1024 | } |
---|
| 1025 | #endif /* INET6 */ |
---|
| 1026 | |
---|
| 1027 | case AF_APPLETALK: |
---|
| 1028 | if (!atalk_aton(s, &su->sat.sat_addr)) |
---|
| 1029 | errx(EX_NOHOST, "bad address: %s", s); |
---|
| 1030 | rtm_addrs |= RTA_NETMASK; |
---|
| 1031 | return(forcehost || su->sat.sat_addr.s_node != 0); |
---|
| 1032 | |
---|
| 1033 | case AF_LINK: |
---|
| 1034 | link_addr(s, &su->sdl); |
---|
| 1035 | return (1); |
---|
| 1036 | |
---|
| 1037 | |
---|
| 1038 | case PF_ROUTE: |
---|
| 1039 | su->sa.sa_len = sizeof(*su); |
---|
| 1040 | sockaddr(s, &su->sa); |
---|
| 1041 | return (1); |
---|
| 1042 | |
---|
| 1043 | case AF_INET: |
---|
| 1044 | default: |
---|
| 1045 | break; |
---|
| 1046 | } |
---|
| 1047 | |
---|
| 1048 | if (hpp == NULL) |
---|
| 1049 | hpp = &hp; |
---|
| 1050 | *hpp = NULL; |
---|
| 1051 | |
---|
| 1052 | q = strchr(s,'/'); |
---|
| 1053 | if (q && which == RTA_DST) { |
---|
| 1054 | *q = '\0'; |
---|
| 1055 | if ((val = inet_network(s)) != INADDR_NONE) { |
---|
| 1056 | inet_makenetandmask( |
---|
| 1057 | val, &su->sin, strtoul(q+1, 0, 0)); |
---|
| 1058 | return (0); |
---|
| 1059 | } |
---|
| 1060 | *q = '/'; |
---|
| 1061 | } |
---|
| 1062 | if ((which != RTA_DST || forcenet == 0) && |
---|
| 1063 | inet_aton(s, &su->sin.sin_addr)) { |
---|
| 1064 | val = su->sin.sin_addr.s_addr; |
---|
| 1065 | if (which != RTA_DST || forcehost || |
---|
| 1066 | inet_lnaof(su->sin.sin_addr) != INADDR_ANY) |
---|
| 1067 | return (1); |
---|
| 1068 | else { |
---|
| 1069 | val = ntohl(val); |
---|
| 1070 | goto netdone; |
---|
| 1071 | } |
---|
| 1072 | } |
---|
| 1073 | if (which == RTA_DST && forcehost == 0 && |
---|
| 1074 | ((val = inet_network(s)) != INADDR_NONE || |
---|
| 1075 | ((np = getnetbyname(s)) != NULL && (val = np->n_net) != 0))) { |
---|
| 1076 | netdone: |
---|
| 1077 | inet_makenetandmask(val, &su->sin, 0); |
---|
| 1078 | return (0); |
---|
| 1079 | } |
---|
| 1080 | hp = gethostbyname(s); |
---|
| 1081 | if (hp) { |
---|
| 1082 | *hpp = hp; |
---|
| 1083 | su->sin.sin_family = hp->h_addrtype; |
---|
| 1084 | memmove((char *)&su->sin.sin_addr, hp->h_addr, |
---|
| 1085 | MIN(hp->h_length, sizeof(su->sin.sin_addr))); |
---|
| 1086 | return (1); |
---|
| 1087 | } |
---|
| 1088 | errx(EX_NOHOST, "bad address: %s", s); |
---|
| 1089 | } |
---|
| 1090 | |
---|
| 1091 | int |
---|
| 1092 | prefixlen(s) |
---|
| 1093 | char *s; |
---|
| 1094 | { |
---|
| 1095 | int len = atoi(s), q, r; |
---|
| 1096 | int max; |
---|
| 1097 | char *p; |
---|
| 1098 | |
---|
| 1099 | rtm_addrs |= RTA_NETMASK; |
---|
| 1100 | switch (af) { |
---|
| 1101 | #ifdef INET6 |
---|
| 1102 | case AF_INET6: |
---|
| 1103 | max = 128; |
---|
| 1104 | p = (char *)&so_mask.sin6.sin6_addr; |
---|
| 1105 | break; |
---|
| 1106 | #endif |
---|
| 1107 | case AF_INET: |
---|
| 1108 | max = 32; |
---|
| 1109 | p = (char *)&so_mask.sin.sin_addr; |
---|
| 1110 | break; |
---|
| 1111 | default: |
---|
| 1112 | (void) fprintf(stderr, "prefixlen not supported in this af\n"); |
---|
| 1113 | exit(1); |
---|
| 1114 | /*NOTREACHED*/ |
---|
| 1115 | } |
---|
| 1116 | |
---|
| 1117 | if (len < 0 || max < len) { |
---|
| 1118 | (void) fprintf(stderr, "%s: bad value\n", s); |
---|
| 1119 | exit(1); |
---|
| 1120 | } |
---|
| 1121 | |
---|
| 1122 | q = len >> 3; |
---|
| 1123 | r = len & 7; |
---|
| 1124 | so_mask.sa.sa_family = af; |
---|
| 1125 | so_mask.sa.sa_len = aflen; |
---|
| 1126 | memset((void *)p, 0, max / 8); |
---|
| 1127 | if (q > 0) |
---|
| 1128 | memset((void *)p, 0xff, q); |
---|
| 1129 | if (r > 0) |
---|
| 1130 | *((u_char *)p + q) = (0xff00 >> r) & 0xff; |
---|
| 1131 | if (len == max) |
---|
| 1132 | return -1; |
---|
| 1133 | else |
---|
| 1134 | return len; |
---|
| 1135 | } |
---|
| 1136 | |
---|
| 1137 | void |
---|
| 1138 | interfaces() |
---|
| 1139 | { |
---|
| 1140 | size_t needed; |
---|
| 1141 | int mib[6]; |
---|
| 1142 | char *buf, *lim, *next, count = 0; |
---|
| 1143 | struct rt_msghdr *rtm; |
---|
| 1144 | |
---|
| 1145 | retry2: |
---|
| 1146 | mib[0] = CTL_NET; |
---|
| 1147 | mib[1] = PF_ROUTE; |
---|
| 1148 | mib[2] = 0; /* protocol */ |
---|
| 1149 | mib[3] = 0; /* wildcard address family */ |
---|
| 1150 | mib[4] = NET_RT_IFLIST; |
---|
| 1151 | mib[5] = 0; /* no flags */ |
---|
| 1152 | if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0) |
---|
| 1153 | err(EX_OSERR, "route-sysctl-estimate"); |
---|
| 1154 | if ((buf = malloc(needed)) == NULL) |
---|
| 1155 | errx(EX_OSERR, "malloc failed"); |
---|
| 1156 | if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) { |
---|
| 1157 | if (errno == ENOMEM && count++ < 10) { |
---|
| 1158 | warnx("Routing table grew, retrying"); |
---|
| 1159 | sleep(1); |
---|
| 1160 | free(buf); |
---|
| 1161 | goto retry2; |
---|
| 1162 | } |
---|
| 1163 | err(EX_OSERR, "actual retrieval of interface table"); |
---|
| 1164 | } |
---|
| 1165 | lim = buf + needed; |
---|
| 1166 | for (next = buf; next < lim; next += rtm->rtm_msglen) { |
---|
| 1167 | rtm = (struct rt_msghdr *)next; |
---|
| 1168 | print_rtmsg(rtm, rtm->rtm_msglen); |
---|
| 1169 | } |
---|
| 1170 | } |
---|
| 1171 | |
---|
| 1172 | void |
---|
| 1173 | monitor() |
---|
| 1174 | { |
---|
| 1175 | int n; |
---|
| 1176 | char msg[2048]; |
---|
| 1177 | |
---|
| 1178 | verbose = 1; |
---|
| 1179 | if (debugonly) { |
---|
| 1180 | interfaces(); |
---|
| 1181 | exit(0); |
---|
| 1182 | } |
---|
| 1183 | for(;;) { |
---|
| 1184 | time_t now; |
---|
| 1185 | n = read(s, msg, 2048); |
---|
| 1186 | now = time(NULL); |
---|
| 1187 | (void) printf("\ngot message of size %d on %s", n, ctime(&now)); |
---|
| 1188 | print_rtmsg((struct rt_msghdr *)msg, n); |
---|
| 1189 | } |
---|
| 1190 | } |
---|
| 1191 | |
---|
| 1192 | struct { |
---|
| 1193 | struct rt_msghdr m_rtm; |
---|
| 1194 | char m_space[512]; |
---|
| 1195 | } m_rtmsg; |
---|
| 1196 | |
---|
| 1197 | int |
---|
| 1198 | rtmsg(cmd, flags) |
---|
| 1199 | int cmd, flags; |
---|
| 1200 | { |
---|
| 1201 | static int seq; |
---|
| 1202 | int rlen; |
---|
| 1203 | char *cp = m_rtmsg.m_space; |
---|
| 1204 | int l; |
---|
| 1205 | |
---|
| 1206 | #define NEXTADDR(w, u) \ |
---|
| 1207 | if (rtm_addrs & (w)) {\ |
---|
| 1208 | l = SA_SIZE(&(u.sa)); memmove(cp, &(u), l); cp += l;\ |
---|
| 1209 | if (verbose) sodump(&(u),#u);\ |
---|
| 1210 | } |
---|
| 1211 | |
---|
| 1212 | errno = 0; |
---|
| 1213 | memset(&m_rtmsg, 0, sizeof(m_rtmsg)); |
---|
| 1214 | if (cmd == 'a') |
---|
| 1215 | cmd = RTM_ADD; |
---|
| 1216 | else if (cmd == 'c') |
---|
| 1217 | cmd = RTM_CHANGE; |
---|
| 1218 | else if (cmd == 'g' || cmd == 's') { |
---|
| 1219 | cmd = RTM_GET; |
---|
| 1220 | if (so_ifp.sa.sa_family == 0) { |
---|
| 1221 | so_ifp.sa.sa_family = AF_LINK; |
---|
| 1222 | so_ifp.sa.sa_len = sizeof(struct sockaddr_dl); |
---|
| 1223 | rtm_addrs |= RTA_IFP; |
---|
| 1224 | } |
---|
| 1225 | } else |
---|
| 1226 | cmd = RTM_DELETE; |
---|
| 1227 | #define rtm m_rtmsg.m_rtm |
---|
| 1228 | rtm.rtm_type = cmd; |
---|
| 1229 | rtm.rtm_flags = flags; |
---|
| 1230 | rtm.rtm_version = RTM_VERSION; |
---|
| 1231 | rtm.rtm_seq = ++seq; |
---|
| 1232 | rtm.rtm_addrs = rtm_addrs; |
---|
| 1233 | rtm.rtm_rmx = rt_metrics; |
---|
| 1234 | rtm.rtm_inits = rtm_inits; |
---|
| 1235 | |
---|
| 1236 | if (rtm_addrs & RTA_NETMASK) |
---|
| 1237 | mask_addr(); |
---|
| 1238 | NEXTADDR(RTA_DST, so_dst); |
---|
| 1239 | NEXTADDR(RTA_GATEWAY, so_gate); |
---|
| 1240 | NEXTADDR(RTA_NETMASK, so_mask); |
---|
| 1241 | NEXTADDR(RTA_GENMASK, so_genmask); |
---|
| 1242 | NEXTADDR(RTA_IFP, so_ifp); |
---|
| 1243 | NEXTADDR(RTA_IFA, so_ifa); |
---|
| 1244 | rtm.rtm_msglen = l = cp - (char *)&m_rtmsg; |
---|
| 1245 | if (verbose) |
---|
| 1246 | print_rtmsg(&rtm, l); |
---|
| 1247 | if (debugonly) |
---|
| 1248 | return (0); |
---|
| 1249 | if ((rlen = write(s, (char *)&m_rtmsg, l)) < 0) { |
---|
| 1250 | if (errno == EPERM) |
---|
| 1251 | err(1, "writing to routing socket"); |
---|
| 1252 | warn("writing to routing socket"); |
---|
| 1253 | return (-1); |
---|
| 1254 | } |
---|
| 1255 | if (cmd == RTM_GET) { |
---|
| 1256 | do { |
---|
| 1257 | l = read(s, (char *)&m_rtmsg, sizeof(m_rtmsg)); |
---|
| 1258 | } while (l > 0 && (rtm.rtm_seq != seq || rtm.rtm_pid != pid)); |
---|
| 1259 | if (l < 0) |
---|
| 1260 | warn("read from routing socket"); |
---|
| 1261 | else |
---|
| 1262 | print_getmsg(&rtm, l); |
---|
| 1263 | } |
---|
| 1264 | #undef rtm |
---|
| 1265 | return (0); |
---|
| 1266 | } |
---|
| 1267 | |
---|
| 1268 | void |
---|
| 1269 | mask_addr() |
---|
| 1270 | { |
---|
| 1271 | int olen = so_mask.sa.sa_len; |
---|
| 1272 | char *cp1 = olen + (char *)&so_mask, *cp2; |
---|
| 1273 | |
---|
| 1274 | for (so_mask.sa.sa_len = 0; cp1 > (char *)&so_mask; ) |
---|
| 1275 | if (*--cp1 != 0) { |
---|
| 1276 | so_mask.sa.sa_len = 1 + cp1 - (char *)&so_mask; |
---|
| 1277 | break; |
---|
| 1278 | } |
---|
| 1279 | if ((rtm_addrs & RTA_DST) == 0) |
---|
| 1280 | return; |
---|
| 1281 | switch (so_dst.sa.sa_family) { |
---|
| 1282 | case AF_INET: |
---|
| 1283 | #ifdef INET6 |
---|
| 1284 | case AF_INET6: |
---|
| 1285 | #endif |
---|
| 1286 | case AF_APPLETALK: |
---|
| 1287 | case 0: |
---|
| 1288 | return; |
---|
| 1289 | } |
---|
| 1290 | cp1 = so_mask.sa.sa_len + 1 + (char *)&so_dst; |
---|
| 1291 | cp2 = so_dst.sa.sa_len + 1 + (char *)&so_dst; |
---|
| 1292 | while (cp2 > cp1) |
---|
| 1293 | *--cp2 = 0; |
---|
| 1294 | cp2 = so_mask.sa.sa_len + 1 + (char *)&so_mask; |
---|
| 1295 | while (cp1 > so_dst.sa.sa_data) |
---|
| 1296 | *--cp1 &= *--cp2; |
---|
| 1297 | } |
---|
| 1298 | |
---|
| 1299 | char *msgtypes[] = { |
---|
| 1300 | "", |
---|
| 1301 | "RTM_ADD: Add Route", |
---|
| 1302 | "RTM_DELETE: Delete Route", |
---|
| 1303 | "RTM_CHANGE: Change Metrics or flags", |
---|
| 1304 | "RTM_GET: Report Metrics", |
---|
| 1305 | "RTM_LOSING: Kernel Suspects Partitioning", |
---|
| 1306 | "RTM_REDIRECT: Told to use different route", |
---|
| 1307 | "RTM_MISS: Lookup failed on this address", |
---|
| 1308 | "RTM_LOCK: fix specified metrics", |
---|
| 1309 | "RTM_OLDADD: caused by SIOCADDRT", |
---|
| 1310 | "RTM_OLDDEL: caused by SIOCDELRT", |
---|
| 1311 | "RTM_RESOLVE: Route created by cloning", |
---|
| 1312 | "RTM_NEWADDR: address being added to iface", |
---|
| 1313 | "RTM_DELADDR: address being removed from iface", |
---|
| 1314 | "RTM_IFINFO: iface status change", |
---|
| 1315 | "RTM_NEWMADDR: new multicast group membership on iface", |
---|
| 1316 | "RTM_DELMADDR: multicast group membership removed from iface", |
---|
| 1317 | "RTM_IFANNOUNCE: interface arrival/departure", |
---|
| 1318 | 0, |
---|
| 1319 | }; |
---|
| 1320 | |
---|
| 1321 | char metricnames[] = |
---|
| 1322 | "\011weight\010rttvar\7rtt\6ssthresh\5sendpipe\4recvpipe\3expire" |
---|
| 1323 | "\1mtu"; |
---|
| 1324 | char routeflags[] = |
---|
| 1325 | "\1UP\2GATEWAY\3HOST\4REJECT\5DYNAMIC\6MODIFIED\7DONE" |
---|
| 1326 | "\012XRESOLVE\013LLINFO\014STATIC\015BLACKHOLE" |
---|
| 1327 | "\017PROTO2\020PROTO1\021PRCLONING\022WASCLONED\023PROTO3" |
---|
| 1328 | "\025PINNED\026LOCAL\027BROADCAST\030MULTICAST\035STICKY"; |
---|
| 1329 | char ifnetflags[] = |
---|
| 1330 | "\1UP\2BROADCAST\3DEBUG\4LOOPBACK\5PTP\6b6\7RUNNING\010NOARP" |
---|
| 1331 | "\011PPROMISC\012ALLMULTI\013OACTIVE\014SIMPLEX\015LINK0\016LINK1" |
---|
| 1332 | "\017LINK2\020MULTICAST"; |
---|
| 1333 | char addrnames[] = |
---|
| 1334 | "\1DST\2GATEWAY\3NETMASK\4GENMASK\5IFP\6IFA\7AUTHOR\010BRD"; |
---|
| 1335 | |
---|
| 1336 | void |
---|
| 1337 | print_rtmsg(rtm, msglen) |
---|
| 1338 | struct rt_msghdr *rtm; |
---|
| 1339 | int msglen; |
---|
| 1340 | { |
---|
| 1341 | struct if_msghdr *ifm; |
---|
| 1342 | struct ifa_msghdr *ifam; |
---|
| 1343 | #ifdef RTM_NEWMADDR |
---|
| 1344 | struct ifma_msghdr *ifmam; |
---|
| 1345 | #endif |
---|
| 1346 | struct if_announcemsghdr *ifan; |
---|
| 1347 | char *state; |
---|
| 1348 | |
---|
| 1349 | if (verbose == 0) |
---|
| 1350 | return; |
---|
| 1351 | if (rtm->rtm_version != RTM_VERSION) { |
---|
| 1352 | (void) printf("routing message version %d not understood\n", |
---|
| 1353 | rtm->rtm_version); |
---|
| 1354 | return; |
---|
| 1355 | } |
---|
| 1356 | if (msgtypes[rtm->rtm_type] != NULL) |
---|
| 1357 | (void)printf("%s: ", msgtypes[rtm->rtm_type]); |
---|
| 1358 | else |
---|
| 1359 | (void)printf("#%d: ", rtm->rtm_type); |
---|
| 1360 | (void)printf("len %d, ", rtm->rtm_msglen); |
---|
| 1361 | switch (rtm->rtm_type) { |
---|
| 1362 | case RTM_IFINFO: |
---|
| 1363 | ifm = (struct if_msghdr *)rtm; |
---|
| 1364 | (void) printf("if# %d, ", ifm->ifm_index); |
---|
| 1365 | switch (ifm->ifm_data.ifi_link_state) { |
---|
| 1366 | case LINK_STATE_DOWN: |
---|
| 1367 | state = "down"; |
---|
| 1368 | break; |
---|
| 1369 | case LINK_STATE_UP: |
---|
| 1370 | state = "up"; |
---|
| 1371 | break; |
---|
| 1372 | default: |
---|
| 1373 | state = "unknown"; |
---|
| 1374 | break; |
---|
| 1375 | } |
---|
| 1376 | (void) printf("link: %s, flags:", state); |
---|
| 1377 | bprintf(stdout, ifm->ifm_flags, ifnetflags); |
---|
| 1378 | pmsg_addrs((char *)(ifm + 1), ifm->ifm_addrs); |
---|
| 1379 | break; |
---|
| 1380 | case RTM_NEWADDR: |
---|
| 1381 | case RTM_DELADDR: |
---|
| 1382 | ifam = (struct ifa_msghdr *)rtm; |
---|
| 1383 | (void) printf("metric %d, flags:", ifam->ifam_metric); |
---|
| 1384 | bprintf(stdout, ifam->ifam_flags, routeflags); |
---|
| 1385 | pmsg_addrs((char *)(ifam + 1), ifam->ifam_addrs); |
---|
| 1386 | break; |
---|
| 1387 | #ifdef RTM_NEWMADDR |
---|
| 1388 | case RTM_NEWMADDR: |
---|
| 1389 | case RTM_DELMADDR: |
---|
| 1390 | ifmam = (struct ifma_msghdr *)rtm; |
---|
| 1391 | pmsg_addrs((char *)(ifmam + 1), ifmam->ifmam_addrs); |
---|
| 1392 | break; |
---|
| 1393 | #endif |
---|
| 1394 | case RTM_IFANNOUNCE: |
---|
| 1395 | ifan = (struct if_announcemsghdr *)rtm; |
---|
| 1396 | (void) printf("if# %d, what: ", ifan->ifan_index); |
---|
| 1397 | switch (ifan->ifan_what) { |
---|
| 1398 | case IFAN_ARRIVAL: |
---|
| 1399 | printf("arrival"); |
---|
| 1400 | break; |
---|
| 1401 | case IFAN_DEPARTURE: |
---|
| 1402 | printf("departure"); |
---|
| 1403 | break; |
---|
| 1404 | default: |
---|
| 1405 | printf("#%d", ifan->ifan_what); |
---|
| 1406 | break; |
---|
| 1407 | } |
---|
| 1408 | printf("\n"); |
---|
| 1409 | break; |
---|
| 1410 | |
---|
| 1411 | default: |
---|
| 1412 | (void) printf("pid: %ld, seq %d, errno %d, flags:", |
---|
| 1413 | (long)rtm->rtm_pid, rtm->rtm_seq, rtm->rtm_errno); |
---|
| 1414 | bprintf(stdout, rtm->rtm_flags, routeflags); |
---|
| 1415 | pmsg_common(rtm); |
---|
| 1416 | } |
---|
| 1417 | } |
---|
| 1418 | |
---|
| 1419 | void |
---|
| 1420 | print_getmsg(rtm, msglen) |
---|
| 1421 | struct rt_msghdr *rtm; |
---|
| 1422 | int msglen; |
---|
| 1423 | { |
---|
| 1424 | struct sockaddr *dst = NULL, *gate = NULL, *mask = NULL; |
---|
| 1425 | struct sockaddr_dl *ifp = NULL; |
---|
| 1426 | struct sockaddr *sa; |
---|
| 1427 | char *cp; |
---|
| 1428 | int i; |
---|
| 1429 | |
---|
| 1430 | (void) printf(" route to: %s\n", routename(&so_dst)); |
---|
| 1431 | if (rtm->rtm_version != RTM_VERSION) { |
---|
| 1432 | warnx("routing message version %d not understood", |
---|
| 1433 | rtm->rtm_version); |
---|
| 1434 | return; |
---|
| 1435 | } |
---|
| 1436 | if (rtm->rtm_msglen > msglen) { |
---|
| 1437 | warnx("message length mismatch, in packet %d, returned %d", |
---|
| 1438 | rtm->rtm_msglen, msglen); |
---|
| 1439 | } |
---|
| 1440 | if (rtm->rtm_errno) { |
---|
| 1441 | errno = rtm->rtm_errno; |
---|
| 1442 | warn("message indicates error %d", errno); |
---|
| 1443 | return; |
---|
| 1444 | } |
---|
| 1445 | cp = ((char *)(rtm + 1)); |
---|
| 1446 | if (rtm->rtm_addrs) |
---|
| 1447 | for (i = 1; i; i <<= 1) |
---|
| 1448 | if (i & rtm->rtm_addrs) { |
---|
| 1449 | sa = (struct sockaddr *)cp; |
---|
| 1450 | switch (i) { |
---|
| 1451 | case RTA_DST: |
---|
| 1452 | dst = sa; |
---|
| 1453 | break; |
---|
| 1454 | case RTA_GATEWAY: |
---|
| 1455 | gate = sa; |
---|
| 1456 | break; |
---|
| 1457 | case RTA_NETMASK: |
---|
| 1458 | mask = sa; |
---|
| 1459 | break; |
---|
| 1460 | case RTA_IFP: |
---|
| 1461 | if (sa->sa_family == AF_LINK && |
---|
| 1462 | ((struct sockaddr_dl *)sa)->sdl_nlen) |
---|
| 1463 | ifp = (struct sockaddr_dl *)sa; |
---|
| 1464 | break; |
---|
| 1465 | } |
---|
| 1466 | cp += SA_SIZE(sa); |
---|
| 1467 | } |
---|
| 1468 | if (dst && mask) |
---|
| 1469 | mask->sa_family = dst->sa_family; /* XXX */ |
---|
| 1470 | if (dst) |
---|
| 1471 | (void)printf("destination: %s\n", routename(dst)); |
---|
| 1472 | if (mask) { |
---|
| 1473 | int savenflag = nflag; |
---|
| 1474 | |
---|
| 1475 | nflag = 1; |
---|
| 1476 | (void)printf(" mask: %s\n", routename(mask)); |
---|
| 1477 | nflag = savenflag; |
---|
| 1478 | } |
---|
| 1479 | if (gate && rtm->rtm_flags & RTF_GATEWAY) |
---|
| 1480 | (void)printf(" gateway: %s\n", routename(gate)); |
---|
| 1481 | if (ifp) |
---|
| 1482 | (void)printf(" interface: %.*s\n", |
---|
| 1483 | ifp->sdl_nlen, ifp->sdl_data); |
---|
| 1484 | (void)printf(" flags: "); |
---|
| 1485 | bprintf(stdout, rtm->rtm_flags, routeflags); |
---|
| 1486 | |
---|
| 1487 | #define lock(f) ((rtm->rtm_rmx.rmx_locks & __CONCAT(RTV_,f)) ? 'L' : ' ') |
---|
| 1488 | #define msec(u) (((u) + 500) / 1000) /* usec to msec */ |
---|
| 1489 | |
---|
| 1490 | (void) printf("\n%s\n", "\ |
---|
| 1491 | recvpipe sendpipe ssthresh rtt,msec mtu weight expire"); |
---|
| 1492 | printf("%8ld%c ", rtm->rtm_rmx.rmx_recvpipe, lock(RPIPE)); |
---|
| 1493 | printf("%8ld%c ", rtm->rtm_rmx.rmx_sendpipe, lock(SPIPE)); |
---|
| 1494 | printf("%8ld%c ", rtm->rtm_rmx.rmx_ssthresh, lock(SSTHRESH)); |
---|
| 1495 | printf("%8ld%c ", msec(rtm->rtm_rmx.rmx_rtt), lock(RTT)); |
---|
| 1496 | printf("%8ld%c ", rtm->rtm_rmx.rmx_mtu, lock(MTU)); |
---|
| 1497 | printf("%8ld%c ", rtm->rtm_rmx.rmx_weight, lock(WEIGHT)); |
---|
| 1498 | if (rtm->rtm_rmx.rmx_expire) |
---|
| 1499 | rtm->rtm_rmx.rmx_expire -= time(0); |
---|
| 1500 | printf("%8ld%c\n", rtm->rtm_rmx.rmx_expire, lock(EXPIRE)); |
---|
| 1501 | #undef lock |
---|
| 1502 | #undef msec |
---|
| 1503 | #define RTA_IGN (RTA_DST|RTA_GATEWAY|RTA_NETMASK|RTA_IFP|RTA_IFA|RTA_BRD) |
---|
| 1504 | if (verbose) |
---|
| 1505 | pmsg_common(rtm); |
---|
| 1506 | else if (rtm->rtm_addrs &~ RTA_IGN) { |
---|
| 1507 | (void) printf("sockaddrs: "); |
---|
| 1508 | bprintf(stdout, rtm->rtm_addrs, addrnames); |
---|
| 1509 | putchar('\n'); |
---|
| 1510 | } |
---|
| 1511 | #undef RTA_IGN |
---|
| 1512 | } |
---|
| 1513 | |
---|
| 1514 | void |
---|
| 1515 | pmsg_common(rtm) |
---|
| 1516 | struct rt_msghdr *rtm; |
---|
| 1517 | { |
---|
| 1518 | (void) printf("\nlocks: "); |
---|
| 1519 | bprintf(stdout, rtm->rtm_rmx.rmx_locks, metricnames); |
---|
| 1520 | (void) printf(" inits: "); |
---|
| 1521 | bprintf(stdout, rtm->rtm_inits, metricnames); |
---|
| 1522 | pmsg_addrs(((char *)(rtm + 1)), rtm->rtm_addrs); |
---|
| 1523 | } |
---|
| 1524 | |
---|
| 1525 | void |
---|
| 1526 | pmsg_addrs(cp, addrs) |
---|
| 1527 | char *cp; |
---|
| 1528 | int addrs; |
---|
| 1529 | { |
---|
| 1530 | struct sockaddr *sa; |
---|
| 1531 | int i; |
---|
| 1532 | |
---|
| 1533 | if (addrs == 0) { |
---|
| 1534 | (void) putchar('\n'); |
---|
| 1535 | return; |
---|
| 1536 | } |
---|
| 1537 | (void) printf("\nsockaddrs: "); |
---|
| 1538 | bprintf(stdout, addrs, addrnames); |
---|
| 1539 | (void) putchar('\n'); |
---|
| 1540 | for (i = 1; i; i <<= 1) |
---|
| 1541 | if (i & addrs) { |
---|
| 1542 | sa = (struct sockaddr *)cp; |
---|
| 1543 | (void) printf(" %s", routename(sa)); |
---|
| 1544 | cp += SA_SIZE(sa); |
---|
| 1545 | } |
---|
| 1546 | (void) putchar('\n'); |
---|
| 1547 | (void) fflush(stdout); |
---|
| 1548 | } |
---|
| 1549 | |
---|
| 1550 | void |
---|
| 1551 | bprintf(fp, b, s) |
---|
| 1552 | FILE *fp; |
---|
| 1553 | int b; |
---|
| 1554 | u_char *s; |
---|
| 1555 | { |
---|
| 1556 | int i; |
---|
| 1557 | int gotsome = 0; |
---|
| 1558 | |
---|
| 1559 | if (b == 0) |
---|
| 1560 | return; |
---|
| 1561 | while ((i = *s++) != 0) { |
---|
| 1562 | if (b & (1 << (i-1))) { |
---|
| 1563 | if (gotsome == 0) |
---|
| 1564 | i = '<'; |
---|
| 1565 | else |
---|
| 1566 | i = ','; |
---|
| 1567 | (void) putc(i, fp); |
---|
| 1568 | gotsome = 1; |
---|
| 1569 | for (; (i = *s) > 32; s++) |
---|
| 1570 | (void) putc(i, fp); |
---|
| 1571 | } else |
---|
| 1572 | while (*s > 32) |
---|
| 1573 | s++; |
---|
| 1574 | } |
---|
| 1575 | if (gotsome) |
---|
| 1576 | (void) putc('>', fp); |
---|
| 1577 | } |
---|
| 1578 | |
---|
| 1579 | int |
---|
| 1580 | keyword(cp) |
---|
| 1581 | char *cp; |
---|
| 1582 | { |
---|
| 1583 | struct keytab *kt = keywords; |
---|
| 1584 | |
---|
| 1585 | while (kt->kt_cp && strcmp(kt->kt_cp, cp)) |
---|
| 1586 | kt++; |
---|
| 1587 | return kt->kt_i; |
---|
| 1588 | } |
---|
| 1589 | |
---|
| 1590 | void |
---|
| 1591 | sodump(su, which) |
---|
| 1592 | sup su; |
---|
| 1593 | char *which; |
---|
| 1594 | { |
---|
| 1595 | switch (su->sa.sa_family) { |
---|
| 1596 | case AF_LINK: |
---|
| 1597 | (void) printf("%s: link %s; ", |
---|
| 1598 | which, link_ntoa(&su->sdl)); |
---|
| 1599 | break; |
---|
| 1600 | case AF_INET: |
---|
| 1601 | (void) printf("%s: inet %s; ", |
---|
| 1602 | which, inet_ntoa(su->sin.sin_addr)); |
---|
| 1603 | break; |
---|
| 1604 | case AF_APPLETALK: |
---|
| 1605 | (void) printf("%s: atalk %s; ", |
---|
| 1606 | which, atalk_ntoa(su->sat.sat_addr)); |
---|
| 1607 | break; |
---|
| 1608 | } |
---|
| 1609 | (void) fflush(stdout); |
---|
| 1610 | } |
---|
| 1611 | |
---|
| 1612 | /* States*/ |
---|
| 1613 | #define VIRGIN 0 |
---|
| 1614 | #define GOTONE 1 |
---|
| 1615 | #define GOTTWO 2 |
---|
| 1616 | /* Inputs */ |
---|
| 1617 | #define DIGIT (4*0) |
---|
| 1618 | #define END (4*1) |
---|
| 1619 | #define DELIM (4*2) |
---|
| 1620 | |
---|
| 1621 | void |
---|
| 1622 | sockaddr(addr, sa) |
---|
| 1623 | char *addr; |
---|
| 1624 | struct sockaddr *sa; |
---|
| 1625 | { |
---|
| 1626 | char *cp = (char *)sa; |
---|
| 1627 | int size = sa->sa_len; |
---|
| 1628 | char *cplim = cp + size; |
---|
| 1629 | int byte = 0, state = VIRGIN, new = 0 /* foil gcc */; |
---|
| 1630 | |
---|
| 1631 | memset(cp, 0, size); |
---|
| 1632 | cp++; |
---|
| 1633 | do { |
---|
| 1634 | if ((*addr >= '0') && (*addr <= '9')) { |
---|
| 1635 | new = *addr - '0'; |
---|
| 1636 | } else if ((*addr >= 'a') && (*addr <= 'f')) { |
---|
| 1637 | new = *addr - 'a' + 10; |
---|
| 1638 | } else if ((*addr >= 'A') && (*addr <= 'F')) { |
---|
| 1639 | new = *addr - 'A' + 10; |
---|
| 1640 | } else if (*addr == 0) |
---|
| 1641 | state |= END; |
---|
| 1642 | else |
---|
| 1643 | state |= DELIM; |
---|
| 1644 | addr++; |
---|
| 1645 | switch (state /* | INPUT */) { |
---|
| 1646 | case GOTTWO | DIGIT: |
---|
| 1647 | *cp++ = byte; /*FALLTHROUGH*/ |
---|
| 1648 | case VIRGIN | DIGIT: |
---|
| 1649 | state = GOTONE; byte = new; continue; |
---|
| 1650 | case GOTONE | DIGIT: |
---|
| 1651 | state = GOTTWO; byte = new + (byte << 4); continue; |
---|
| 1652 | default: /* | DELIM */ |
---|
| 1653 | state = VIRGIN; *cp++ = byte; byte = 0; continue; |
---|
| 1654 | case GOTONE | END: |
---|
| 1655 | case GOTTWO | END: |
---|
| 1656 | *cp++ = byte; /* FALLTHROUGH */ |
---|
| 1657 | case VIRGIN | END: |
---|
| 1658 | break; |
---|
| 1659 | } |
---|
| 1660 | break; |
---|
| 1661 | } while (cp < cplim); |
---|
| 1662 | sa->sa_len = cp - (char *)sa; |
---|
| 1663 | } |
---|
| 1664 | |
---|
| 1665 | int |
---|
| 1666 | atalk_aton(const char *text, struct at_addr *addr) |
---|
| 1667 | { |
---|
| 1668 | u_int net, node; |
---|
| 1669 | |
---|
| 1670 | if (sscanf(text, "%u.%u", &net, &node) != 2 |
---|
| 1671 | || net > 0xffff || node > 0xff) |
---|
| 1672 | return(0); |
---|
| 1673 | addr->s_net = htons(net); |
---|
| 1674 | addr->s_node = node; |
---|
| 1675 | return(1); |
---|
| 1676 | } |
---|
| 1677 | |
---|
| 1678 | char * |
---|
| 1679 | atalk_ntoa(struct at_addr at) |
---|
| 1680 | { |
---|
| 1681 | static char buf[20]; |
---|
| 1682 | |
---|
| 1683 | (void) snprintf(buf, sizeof(buf), "%u.%u", ntohs(at.s_net), at.s_node); |
---|
| 1684 | return(buf); |
---|
| 1685 | } |
---|