1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * dhcpcd - DHCP client daemon 4 * Copyright (c) 2006-2020 Roy Marples <roy@marples.name> 5 * All rights reserved 6 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #include <sys/param.h> 30 #include <sys/types.h> 31 32 #include <arpa/inet.h> 33 34 #include <ctype.h> 35 #include <errno.h> 36 #include <getopt.h> 37 #include <grp.h> 38 #include <inttypes.h> 39 #include <limits.h> 40 #include <paths.h> 41 #include <stdio.h> 42 #include <stdlib.h> 43 #include <string.h> 44 #include <unistd.h> 45 #include <time.h> 46 47 #include "config.h" 48 #include "common.h" 49 #include "dhcp.h" 50 #include "dhcp6.h" 51 #include "dhcpcd-embedded.h" 52 #include "duid.h" 53 #include "if.h" 54 #include "if-options.h" 55 #include "ipv4.h" 56 #include "logerr.h" 57 #include "sa.h" 58 59 #define IN_CONFIG_BLOCK(ifo) ((ifo)->options & DHCPCD_FORKED) 60 #define SET_CONFIG_BLOCK(ifo) ((ifo)->options |= DHCPCD_FORKED) 61 #define CLEAR_CONFIG_BLOCK(ifo) ((ifo)->options &= ~DHCPCD_FORKED) 62 63 static unsigned long long default_options; 64 65 const struct option cf_options[] = { 66 {"background", no_argument, NULL, 'b'}, 67 {"script", required_argument, NULL, 'c'}, 68 {"debug", no_argument, NULL, 'd'}, 69 {"env", required_argument, NULL, 'e'}, 70 {"config", required_argument, NULL, 'f'}, 71 {"reconfigure", no_argument, NULL, 'g'}, 72 {"hostname", optional_argument, NULL, 'h'}, 73 {"vendorclassid", optional_argument, NULL, 'i'}, 74 {"logfile", required_argument, NULL, 'j'}, 75 {"release", no_argument, NULL, 'k'}, 76 {"leasetime", required_argument, NULL, 'l'}, 77 {"metric", required_argument, NULL, 'm'}, 78 {"rebind", no_argument, NULL, 'n'}, 79 {"option", required_argument, NULL, 'o'}, 80 {"persistent", no_argument, NULL, 'p'}, 81 {"quiet", no_argument, NULL, 'q'}, 82 {"request", optional_argument, NULL, 'r'}, 83 {"inform", optional_argument, NULL, 's'}, 84 {"inform6", optional_argument, NULL, O_INFORM6}, 85 {"timeout", required_argument, NULL, 't'}, 86 {"userclass", required_argument, NULL, 'u'}, 87 #ifndef SMALL 88 {"msuserclass", required_argument, NULL, O_MSUSERCLASS}, 89 #endif 90 {"vendor", required_argument, NULL, 'v'}, 91 {"waitip", optional_argument, NULL, 'w'}, 92 {"exit", no_argument, NULL, 'x'}, 93 {"allowinterfaces", required_argument, NULL, 'z'}, 94 {"reboot", required_argument, NULL, 'y'}, 95 {"noarp", no_argument, NULL, 'A'}, 96 {"nobackground", no_argument, NULL, 'B'}, 97 {"nohook", required_argument, NULL, 'C'}, 98 {"duid", optional_argument, NULL, 'D'}, 99 {"lastlease", no_argument, NULL, 'E'}, 100 {"fqdn", optional_argument, NULL, 'F'}, 101 {"nogateway", no_argument, NULL, 'G'}, 102 {"xidhwaddr", no_argument, NULL, 'H'}, 103 {"clientid", optional_argument, NULL, 'I'}, 104 {"broadcast", no_argument, NULL, 'J'}, 105 {"nolink", no_argument, NULL, 'K'}, 106 {"noipv4ll", no_argument, NULL, 'L'}, 107 {"master", no_argument, NULL, 'M'}, 108 {"renew", no_argument, NULL, 'N'}, 109 {"nooption", required_argument, NULL, 'O'}, 110 {"printpidfile", no_argument, NULL, 'P'}, 111 {"require", required_argument, NULL, 'Q'}, 112 {"static", required_argument, NULL, 'S'}, 113 {"test", no_argument, NULL, 'T'}, 114 {"dumplease", no_argument, NULL, 'U'}, 115 {"variables", no_argument, NULL, 'V'}, 116 {"whitelist", required_argument, NULL, 'W'}, 117 {"blacklist", required_argument, NULL, 'X'}, 118 {"denyinterfaces", required_argument, NULL, 'Z'}, 119 {"oneshot", no_argument, NULL, '1'}, 120 {"ipv4only", no_argument, NULL, '4'}, 121 {"ipv6only", no_argument, NULL, '6'}, 122 {"anonymous", no_argument, NULL, O_ANONYMOUS}, 123 {"arping", required_argument, NULL, O_ARPING}, 124 {"destination", required_argument, NULL, O_DESTINATION}, 125 {"fallback", required_argument, NULL, O_FALLBACK}, 126 {"ipv6rs", no_argument, NULL, O_IPV6RS}, 127 {"noipv6rs", no_argument, NULL, O_NOIPV6RS}, 128 {"ipv6ra_autoconf", no_argument, NULL, O_IPV6RA_AUTOCONF}, 129 {"ipv6ra_noautoconf", no_argument, NULL, O_IPV6RA_NOAUTOCONF}, 130 {"ipv6ra_fork", no_argument, NULL, O_IPV6RA_FORK}, 131 {"ipv4", no_argument, NULL, O_IPV4}, 132 {"noipv4", no_argument, NULL, O_NOIPV4}, 133 {"ipv6", no_argument, NULL, O_IPV6}, 134 {"noipv6", no_argument, NULL, O_NOIPV6}, 135 {"noalias", no_argument, NULL, O_NOALIAS}, 136 {"iaid", required_argument, NULL, O_IAID}, 137 {"ia_na", no_argument, NULL, O_IA_NA}, 138 {"ia_ta", no_argument, NULL, O_IA_TA}, 139 {"ia_pd", no_argument, NULL, O_IA_PD}, 140 {"hostname_short", no_argument, NULL, O_HOSTNAME_SHORT}, 141 {"dev", required_argument, NULL, O_DEV}, 142 {"nodev", no_argument, NULL, O_NODEV}, 143 {"define", required_argument, NULL, O_DEFINE}, 144 {"definend", required_argument, NULL, O_DEFINEND}, 145 {"define6", required_argument, NULL, O_DEFINE6}, 146 {"embed", required_argument, NULL, O_EMBED}, 147 {"encap", required_argument, NULL, O_ENCAP}, 148 {"vendopt", required_argument, NULL, O_VENDOPT}, 149 {"vendclass", required_argument, NULL, O_VENDCLASS}, 150 {"authprotocol", required_argument, NULL, O_AUTHPROTOCOL}, 151 {"authtoken", required_argument, NULL, O_AUTHTOKEN}, 152 {"noauthrequired", no_argument, NULL, O_AUTHNOTREQUIRED}, 153 {"dhcp", no_argument, NULL, O_DHCP}, 154 {"nodhcp", no_argument, NULL, O_NODHCP}, 155 {"dhcp6", no_argument, NULL, O_DHCP6}, 156 {"nodhcp6", no_argument, NULL, O_NODHCP6}, 157 {"controlgroup", required_argument, NULL, O_CONTROLGRP}, 158 {"slaac", required_argument, NULL, O_SLAAC}, 159 {"gateway", no_argument, NULL, O_GATEWAY}, 160 {"reject", required_argument, NULL, O_REJECT}, 161 {"bootp", no_argument, NULL, O_BOOTP}, 162 {"nodelay", no_argument, NULL, O_NODELAY}, 163 {"noup", no_argument, NULL, O_NOUP}, 164 {"lastleaseextend", no_argument, NULL, O_LASTLEASE_EXTEND}, 165 {"inactive", no_argument, NULL, O_INACTIVE}, 166 {"mudurl", required_argument, NULL, O_MUDURL}, 167 {"link_rcvbuf", required_argument, NULL, O_LINK_RCVBUF}, 168 {"configure", no_argument, NULL, O_CONFIGURE}, 169 {"noconfigure", no_argument, NULL, O_NOCONFIGURE}, 170 {NULL, 0, NULL, '\0'} 171 }; 172 173 static char * 174 add_environ(char ***array, const char *value, int uniq) 175 { 176 char **newlist, **list = *array; 177 size_t i = 0, l, lv; 178 char *match = NULL, *p, *n; 179 180 match = strdup(value); 181 if (match == NULL) { 182 logerr(__func__); 183 return NULL; 184 } 185 p = strchr(match, '='); 186 if (p == NULL) { 187 logerrx("%s: no assignment: %s", __func__, value); 188 free(match); 189 return NULL; 190 } 191 *p++ = '\0'; 192 l = strlen(match); 193 194 while (list && list[i]) { 195 if (match && strncmp(list[i], match, l) == 0) { 196 if (uniq) { 197 n = strdup(value); 198 if (n == NULL) { 199 logerr(__func__); 200 free(match); 201 return NULL; 202 } 203 free(list[i]); 204 list[i] = n; 205 } else { 206 /* Append a space and the value to it */ 207 l = strlen(list[i]); 208 lv = strlen(p); 209 n = realloc(list[i], l + lv + 2); 210 if (n == NULL) { 211 logerr(__func__); 212 free(match); 213 return NULL; 214 } 215 list[i] = n; 216 list[i][l] = ' '; 217 memcpy(list[i] + l + 1, p, lv); 218 list[i][l + lv + 1] = '\0'; 219 } 220 free(match); 221 return list[i]; 222 } 223 i++; 224 } 225 226 free(match); 227 n = strdup(value); 228 if (n == NULL) { 229 logerr(__func__); 230 return NULL; 231 } 232 newlist = reallocarray(list, i + 2, sizeof(char *)); 233 if (newlist == NULL) { 234 logerr(__func__); 235 free(n); 236 return NULL; 237 } 238 newlist[i] = n; 239 newlist[i + 1] = NULL; 240 *array = newlist; 241 return newlist[i]; 242 } 243 244 #define PARSE_STRING 0 245 #define PARSE_STRING_NULL 1 246 #define PARSE_HWADDR 2 247 #define parse_string(a, b, c) parse_str((a), (b), (c), PARSE_STRING) 248 #define parse_nstring(a, b, c) parse_str((a), (b), (c), PARSE_STRING_NULL) 249 #define parse_hwaddr(a, b, c) parse_str((a), (b), (c), PARSE_HWADDR) 250 static ssize_t 251 parse_str(char *sbuf, size_t slen, const char *str, int flags) 252 { 253 size_t l; 254 const char *p, *end; 255 int i; 256 char c[4], cmd; 257 258 end = str + strlen(str); 259 /* If surrounded by quotes then it's a string */ 260 if (*str == '"') { 261 p = end - 1; 262 if (*p == '"') { 263 str++; 264 end = p; 265 } 266 } else { 267 l = (size_t)hwaddr_aton(NULL, str); 268 if ((ssize_t) l != -1 && l > 1) { 269 if (l > slen) { 270 errno = ENOBUFS; 271 return -1; 272 } 273 hwaddr_aton((uint8_t *)sbuf, str); 274 return (ssize_t)l; 275 } 276 } 277 278 /* Process escapes */ 279 l = 0; 280 /* If processing a string on the clientid, first byte should be 281 * 0 to indicate a non hardware type */ 282 if (flags == PARSE_HWADDR && *str) { 283 if (sbuf) 284 *sbuf++ = 0; 285 l++; 286 } 287 c[3] = '\0'; 288 while (str < end) { 289 if (++l > slen && sbuf) { 290 errno = ENOBUFS; 291 return -1; 292 } 293 if (*str == '\\') { 294 str++; 295 switch((cmd = *str++)) { 296 case '\0': 297 str--; 298 break; 299 case 'b': 300 if (sbuf) 301 *sbuf++ = '\b'; 302 break; 303 case 'n': 304 if (sbuf) 305 *sbuf++ = '\n'; 306 break; 307 case 'r': 308 if (sbuf) 309 *sbuf++ = '\r'; 310 break; 311 case 't': 312 if (sbuf) 313 *sbuf++ = '\t'; 314 break; 315 case 'x': 316 /* Grab a hex code */ 317 c[1] = '\0'; 318 for (i = 0; i < 2; i++) { 319 if (isxdigit((unsigned char)*str) == 0) 320 break; 321 c[i] = *str++; 322 } 323 if (c[1] != '\0' && sbuf) { 324 c[2] = '\0'; 325 *sbuf++ = (char)strtol(c, NULL, 16); 326 } else 327 l--; 328 break; 329 case '0': 330 /* Grab an octal code */ 331 c[2] = '\0'; 332 for (i = 0; i < 3; i++) { 333 if (*str < '0' || *str > '7') 334 break; 335 c[i] = *str++; 336 } 337 if (c[2] != '\0' && sbuf) { 338 i = (int)strtol(c, NULL, 8); 339 if (i > 255) 340 i = 255; 341 *sbuf ++= (char)i; 342 } else 343 l--; 344 break; 345 default: 346 if (sbuf) 347 *sbuf++ = cmd; 348 break; 349 } 350 } else { 351 if (sbuf) 352 *sbuf++ = *str; 353 str++; 354 } 355 } 356 if (flags == PARSE_STRING_NULL) { 357 l++; 358 if (sbuf != NULL) { 359 if (l > slen) { 360 errno = ENOBUFS; 361 return -1; 362 } 363 *sbuf = '\0'; 364 } 365 } 366 return (ssize_t)l; 367 } 368 369 static int 370 parse_iaid1(uint8_t *iaid, const char *arg, size_t len, int n) 371 { 372 int e; 373 uint32_t narg; 374 ssize_t s; 375 376 narg = (uint32_t)strtou(arg, NULL, 0, 0, UINT32_MAX, &e); 377 if (e == 0) { 378 if (n) 379 narg = htonl(narg); 380 memcpy(iaid, &narg, sizeof(narg)); 381 return 0; 382 } 383 384 if ((s = parse_string((char *)iaid, len, arg)) < 1) 385 return -1; 386 if (s < 4) 387 iaid[3] = '\0'; 388 if (s < 3) 389 iaid[2] = '\0'; 390 if (s < 2) 391 iaid[1] = '\0'; 392 return 0; 393 } 394 395 static int 396 parse_iaid(uint8_t *iaid, const char *arg, size_t len) 397 { 398 399 return parse_iaid1(iaid, arg, len, 1); 400 } 401 402 #ifdef AUTH 403 static int 404 parse_uint32(uint32_t *i, const char *arg) 405 { 406 407 return parse_iaid1((uint8_t *)i, arg, sizeof(uint32_t), 0); 408 } 409 #endif 410 411 static char ** 412 splitv(int *argc, char **argv, const char *arg) 413 { 414 char **n, **v = argv; 415 char *o = strdup(arg), *p, *t, *nt; 416 417 if (o == NULL) { 418 logerr(__func__); 419 return v; 420 } 421 p = o; 422 while ((t = strsep(&p, ", "))) { 423 nt = strdup(t); 424 if (nt == NULL) { 425 logerr(__func__); 426 free(o); 427 return v; 428 } 429 n = reallocarray(v, (size_t)(*argc) + 1, sizeof(char *)); 430 if (n == NULL) { 431 logerr(__func__); 432 free(o); 433 free(nt); 434 return v; 435 } 436 v = n; 437 v[(*argc)++] = nt; 438 } 439 free(o); 440 return v; 441 } 442 443 #ifdef INET 444 static int 445 parse_addr(struct in_addr *addr, struct in_addr *net, const char *arg) 446 { 447 char *p; 448 449 if (arg == NULL || *arg == '\0') { 450 if (addr != NULL) 451 addr->s_addr = 0; 452 if (net != NULL) 453 net->s_addr = 0; 454 return 0; 455 } 456 if ((p = strchr(arg, '/')) != NULL) { 457 int e; 458 intmax_t i; 459 460 *p++ = '\0'; 461 i = strtoi(p, NULL, 10, 0, 32, &e); 462 if (e != 0 || 463 (net != NULL && inet_cidrtoaddr((int)i, net) != 0)) 464 { 465 logerrx("invalid CIDR: %s", p); 466 return -1; 467 } 468 } 469 470 if (addr != NULL && inet_aton(arg, addr) == 0) { 471 logerrx("invalid IP address: %s", arg); 472 return -1; 473 } 474 if (p != NULL) 475 *--p = '/'; 476 else if (net != NULL && addr != NULL) 477 net->s_addr = ipv4_getnetmask(addr->s_addr); 478 return 0; 479 } 480 #else 481 static int 482 parse_addr(__unused struct in_addr *addr, __unused struct in_addr *net, 483 __unused const char *arg) 484 { 485 486 logerrx("No IPv4 support"); 487 return -1; 488 } 489 #endif 490 491 static void 492 set_option_space(struct dhcpcd_ctx *ctx, 493 const char *arg, 494 const struct dhcp_opt **d, size_t *dl, 495 const struct dhcp_opt **od, size_t *odl, 496 struct if_options *ifo, 497 uint8_t *request[], uint8_t *require[], uint8_t *no[], uint8_t *reject[]) 498 { 499 500 #if !defined(INET) && !defined(INET6) 501 UNUSED(ctx); 502 #endif 503 504 #ifdef INET6 505 if (strncmp(arg, "nd_", strlen("nd_")) == 0) { 506 *d = ctx->nd_opts; 507 *dl = ctx->nd_opts_len; 508 *od = ifo->nd_override; 509 *odl = ifo->nd_override_len; 510 *request = ifo->requestmasknd; 511 *require = ifo->requiremasknd; 512 *no = ifo->nomasknd; 513 *reject = ifo->rejectmasknd; 514 return; 515 } 516 517 #ifdef DHCP6 518 if (strncmp(arg, "dhcp6_", strlen("dhcp6_")) == 0) { 519 *d = ctx->dhcp6_opts; 520 *dl = ctx->dhcp6_opts_len; 521 *od = ifo->dhcp6_override; 522 *odl = ifo->dhcp6_override_len; 523 *request = ifo->requestmask6; 524 *require = ifo->requiremask6; 525 *no = ifo->nomask6; 526 *reject = ifo->rejectmask6; 527 return; 528 } 529 #endif 530 #else 531 UNUSED(arg); 532 #endif 533 534 #ifdef INET 535 *d = ctx->dhcp_opts; 536 *dl = ctx->dhcp_opts_len; 537 *od = ifo->dhcp_override; 538 *odl = ifo->dhcp_override_len; 539 #else 540 *d = NULL; 541 *dl = 0; 542 *od = NULL; 543 *odl = 0; 544 #endif 545 *request = ifo->requestmask; 546 *require = ifo->requiremask; 547 *no = ifo->nomask; 548 *reject = ifo->rejectmask; 549 } 550 551 void 552 free_dhcp_opt_embenc(struct dhcp_opt *opt) 553 { 554 size_t i; 555 struct dhcp_opt *o; 556 557 free(opt->var); 558 559 for (i = 0, o = opt->embopts; i < opt->embopts_len; i++, o++) 560 free_dhcp_opt_embenc(o); 561 free(opt->embopts); 562 opt->embopts_len = 0; 563 opt->embopts = NULL; 564 565 for (i = 0, o = opt->encopts; i < opt->encopts_len; i++, o++) 566 free_dhcp_opt_embenc(o); 567 free(opt->encopts); 568 opt->encopts_len = 0; 569 opt->encopts = NULL; 570 } 571 572 static char * 573 strwhite(const char *s) 574 { 575 576 if (s == NULL) 577 return NULL; 578 while (*s != ' ' && *s != '\t') { 579 if (*s == '\0') 580 return NULL; 581 s++; 582 } 583 return UNCONST(s); 584 } 585 586 static char * 587 strskipwhite(const char *s) 588 { 589 590 if (s == NULL || *s == '\0') 591 return NULL; 592 while (*s == ' ' || *s == '\t') { 593 s++; 594 if (*s == '\0') 595 return NULL; 596 } 597 return UNCONST(s); 598 } 599 600 #ifdef AUTH 601 /* Find the end pointer of a string. */ 602 static char * 603 strend(const char *s) 604 { 605 606 s = strskipwhite(s); 607 if (s == NULL) 608 return NULL; 609 if (*s != '"') 610 return strchr(s, ' '); 611 s++; 612 for (; *s != '"' ; s++) { 613 if (*s == '\0') 614 return NULL; 615 if (*s == '\\') { 616 if (*(++s) == '\0') 617 return NULL; 618 } 619 } 620 return UNCONST(++s); 621 } 622 #endif 623 624 static int 625 parse_option(struct dhcpcd_ctx *ctx, const char *ifname, struct if_options *ifo, 626 int opt, const char *arg, struct dhcp_opt **ldop, struct dhcp_opt **edop) 627 { 628 int e, i, t; 629 long l; 630 unsigned long u; 631 char *p = NULL, *bp, *fp, *np; 632 ssize_t s; 633 struct in_addr addr, addr2; 634 in_addr_t *naddr; 635 struct rt *rt; 636 const struct dhcp_opt *d, *od; 637 uint8_t *request, *require, *no, *reject; 638 struct dhcp_opt **dop, *ndop; 639 size_t *dop_len, dl, odl; 640 struct vivco *vivco; 641 struct group *grp; 642 #ifdef AUTH 643 struct token *token; 644 #endif 645 #ifdef _REENTRANT 646 struct group grpbuf; 647 #endif 648 #ifdef DHCP6 649 size_t sl; 650 struct if_ia *ia; 651 uint8_t iaid[4]; 652 #ifndef SMALL 653 struct if_sla *sla, *slap; 654 #endif 655 #endif 656 657 dop = NULL; 658 dop_len = NULL; 659 #ifdef INET6 660 i = 0; 661 #endif 662 663 /* Add a guard for static analysers. 664 * This should not be needed really because of the argument_required option 665 * in the options declaration above. */ 666 #define ARG_REQUIRED if (arg == NULL) goto arg_required 667 668 switch(opt) { 669 case 'f': /* FALLTHROUGH */ 670 case 'g': /* FALLTHROUGH */ 671 case 'n': /* FALLTHROUGH */ 672 case 'q': /* FALLTHROUGH */ 673 case 'x': /* FALLTHROUGH */ 674 case 'N': /* FALLTHROUGH */ 675 case 'P': /* FALLTHROUGH */ 676 case 'T': /* FALLTHROUGH */ 677 case 'U': /* FALLTHROUGH */ 678 case 'V': /* We need to handle non interface options */ 679 break; 680 case 'b': 681 ifo->options |= DHCPCD_BACKGROUND; 682 break; 683 case 'c': 684 ARG_REQUIRED; 685 if (IN_CONFIG_BLOCK(ifo)) { 686 logerrx("%s: per interface scripts" 687 " are no longer supported", 688 ifname); 689 return -1; 690 } 691 if (ctx->script != dhcpcd_default_script) 692 free(ctx->script); 693 s = parse_nstring(NULL, 0, arg); 694 if (s == 0) { 695 ctx->script = NULL; 696 break; 697 } 698 dl = (size_t)s; 699 if (s == -1 || (ctx->script = malloc(dl)) == NULL) { 700 ctx->script = NULL; 701 logerr(__func__); 702 return -1; 703 } 704 s = parse_nstring(ctx->script, dl, arg); 705 if (s == -1 || 706 ctx->script[0] == '\0' || 707 strcmp(ctx->script, "/dev/null") == 0) 708 { 709 free(ctx->script); 710 ctx->script = NULL; 711 } 712 break; 713 case 'd': 714 ifo->options |= DHCPCD_DEBUG; 715 break; 716 case 'e': 717 ARG_REQUIRED; 718 add_environ(&ifo->environ, arg, 1); 719 break; 720 case 'h': 721 if (!arg) { 722 ifo->options |= DHCPCD_HOSTNAME; 723 break; 724 } 725 s = parse_nstring(ifo->hostname, sizeof(ifo->hostname), arg); 726 if (s == -1) { 727 logerr("%s: hostname", __func__); 728 return -1; 729 } 730 if (s != 0 && ifo->hostname[0] == '.') { 731 logerrx("hostname cannot begin with ."); 732 return -1; 733 } 734 if (ifo->hostname[0] == '\0') 735 ifo->options &= ~DHCPCD_HOSTNAME; 736 else 737 ifo->options |= DHCPCD_HOSTNAME; 738 break; 739 case 'i': 740 if (arg) 741 s = parse_string((char *)ifo->vendorclassid + 1, 742 VENDORCLASSID_MAX_LEN, arg); 743 else 744 s = 0; 745 if (s == -1) { 746 logerr("vendorclassid"); 747 return -1; 748 } 749 *ifo->vendorclassid = (uint8_t)s; 750 break; 751 case 'j': 752 ARG_REQUIRED; 753 /* per interface logging is not supported 754 * don't want to overide the commandline */ 755 if (!IN_CONFIG_BLOCK(ifo) && ctx->logfile == NULL) { 756 logclose(); 757 ctx->logfile = strdup(arg); 758 logopen(ctx->logfile); 759 } 760 break; 761 case 'k': 762 ifo->options |= DHCPCD_RELEASE; 763 break; 764 case 'l': 765 ARG_REQUIRED; 766 if (strcmp(arg, "-1") == 0) { 767 ifo->leasetime = DHCP_INFINITE_LIFETIME; 768 break; 769 } 770 ifo->leasetime = (uint32_t)strtou(arg, NULL, 771 0, 0, UINT32_MAX, &e); 772 if (e) { 773 logerrx("failed to convert leasetime %s", arg); 774 return -1; 775 } 776 break; 777 case 'm': 778 ARG_REQUIRED; 779 ifo->metric = (int)strtoi(arg, NULL, 0, 0, INT32_MAX, &e); 780 if (e) { 781 logerrx("failed to convert metric %s", arg); 782 return -1; 783 } 784 break; 785 case 'o': 786 ARG_REQUIRED; 787 if (ctx->options & DHCPCD_PRINT_PIDFILE) 788 break; 789 set_option_space(ctx, arg, &d, &dl, &od, &odl, ifo, 790 &request, &require, &no, &reject); 791 if (make_option_mask(d, dl, od, odl, request, arg, 1) != 0 || 792 make_option_mask(d, dl, od, odl, no, arg, -1) != 0 || 793 make_option_mask(d, dl, od, odl, reject, arg, -1) != 0) 794 { 795 logerrx("unknown option: %s", arg); 796 return -1; 797 } 798 break; 799 case O_REJECT: 800 ARG_REQUIRED; 801 if (ctx->options & DHCPCD_PRINT_PIDFILE) 802 break; 803 set_option_space(ctx, arg, &d, &dl, &od, &odl, ifo, 804 &request, &require, &no, &reject); 805 if (make_option_mask(d, dl, od, odl, reject, arg, 1) != 0 || 806 make_option_mask(d, dl, od, odl, request, arg, -1) != 0 || 807 make_option_mask(d, dl, od, odl, require, arg, -1) != 0) 808 { 809 logerrx("unknown option: %s", arg); 810 return -1; 811 } 812 break; 813 case 'p': 814 ifo->options |= DHCPCD_PERSISTENT; 815 break; 816 case 'r': 817 if (parse_addr(&ifo->req_addr, NULL, arg) != 0) 818 return -1; 819 ifo->options |= DHCPCD_REQUEST; 820 ifo->req_mask.s_addr = 0; 821 break; 822 case 's': 823 if (arg && *arg != '\0') { 824 /* Strip out a broadcast address */ 825 p = strchr(arg, '/'); 826 if (p != NULL) { 827 p = strchr(p + 1, '/'); 828 if (p != NULL) 829 *p = '\0'; 830 } 831 i = parse_addr(&ifo->req_addr, &ifo->req_mask, arg); 832 if (p != NULL) { 833 /* Ensure the original string is preserved */ 834 *p++ = '/'; 835 if (i == 0) 836 i = parse_addr(&ifo->req_brd, NULL, p); 837 } 838 if (i != 0) 839 return -1; 840 } else { 841 ifo->req_addr.s_addr = 0; 842 ifo->req_mask.s_addr = 0; 843 } 844 ifo->options |= DHCPCD_INFORM | DHCPCD_PERSISTENT; 845 ifo->options &= ~DHCPCD_STATIC; 846 break; 847 case O_INFORM6: 848 ifo->options |= DHCPCD_INFORM6; 849 break; 850 case 't': 851 ARG_REQUIRED; 852 ifo->timeout = (uint32_t)strtou(arg, NULL, 0, 0, UINT32_MAX, &e); 853 if (e) { 854 logerrx("failed to convert timeout %s", arg); 855 return -1; 856 } 857 break; 858 case 'u': 859 dl = sizeof(ifo->userclass) - ifo->userclass[0] - 1; 860 s = parse_string((char *)ifo->userclass + 861 ifo->userclass[0] + 2, dl, arg); 862 if (s == -1) { 863 logerr("userclass"); 864 return -1; 865 } 866 if (s != 0) { 867 ifo->userclass[ifo->userclass[0] + 1] = (uint8_t)s; 868 ifo->userclass[0] = (uint8_t)(ifo->userclass[0] + s +1); 869 } 870 break; 871 #ifndef SMALL 872 case O_MSUSERCLASS: 873 /* Some Microsoft DHCP servers expect userclass to be an 874 * opaque blob. This is not RFC 3004 compliant. */ 875 s = parse_string((char *)ifo->userclass + 1, 876 sizeof(ifo->userclass) - 1, arg); 877 if (s == -1) { 878 logerr("msuserclass"); 879 return -1; 880 } 881 ifo->userclass[0] = (uint8_t)s; 882 break; 883 #endif 884 case 'v': 885 ARG_REQUIRED; 886 p = strchr(arg, ','); 887 if (!p || !p[1]) { 888 logerrx("invalid vendor format: %s", arg); 889 return -1; 890 } 891 892 /* If vendor starts with , then it is not encapsulated */ 893 if (p == arg) { 894 arg++; 895 s = parse_string((char *)ifo->vendor + 1, 896 VENDOR_MAX_LEN, arg); 897 if (s == -1) { 898 logerr("vendor"); 899 return -1; 900 } 901 ifo->vendor[0] = (uint8_t)s; 902 ifo->options |= DHCPCD_VENDORRAW; 903 break; 904 } 905 906 /* Encapsulated vendor options */ 907 if (ifo->options & DHCPCD_VENDORRAW) { 908 ifo->options &= ~DHCPCD_VENDORRAW; 909 ifo->vendor[0] = 0; 910 } 911 912 /* Strip and preserve the comma */ 913 *p = '\0'; 914 i = (int)strtoi(arg, NULL, 0, 1, 254, &e); 915 *p = ','; 916 if (e) { 917 logerrx("vendor option should be between" 918 " 1 and 254 inclusive"); 919 return -1; 920 } 921 922 arg = p + 1; 923 s = VENDOR_MAX_LEN - ifo->vendor[0] - 2; 924 if (inet_aton(arg, &addr) == 1) { 925 if (s < 6) { 926 s = -1; 927 errno = ENOBUFS; 928 } else { 929 memcpy(ifo->vendor + ifo->vendor[0] + 3, 930 &addr.s_addr, sizeof(addr.s_addr)); 931 s = sizeof(addr.s_addr); 932 } 933 } else { 934 s = parse_string((char *)ifo->vendor + 935 ifo->vendor[0] + 3, (size_t)s, arg); 936 } 937 if (s == -1) { 938 logerr("vendor"); 939 return -1; 940 } 941 if (s != 0) { 942 ifo->vendor[ifo->vendor[0] + 1] = (uint8_t)i; 943 ifo->vendor[ifo->vendor[0] + 2] = (uint8_t)s; 944 ifo->vendor[0] = (uint8_t)(ifo->vendor[0] + s + 2); 945 } 946 break; 947 case 'w': 948 ifo->options |= DHCPCD_WAITIP; 949 if (arg != NULL && arg[0] != '\0') { 950 if (arg[0] == '4' || arg[1] == '4') 951 ifo->options |= DHCPCD_WAITIP4; 952 if (arg[0] == '6' || arg[1] == '6') 953 ifo->options |= DHCPCD_WAITIP6; 954 } 955 break; 956 case 'y': 957 ARG_REQUIRED; 958 ifo->reboot = (uint32_t)strtou(arg, NULL, 0, 0, UINT32_MAX, &e); 959 if (e) { 960 logerr("failed to convert reboot %s", arg); 961 return -1; 962 } 963 break; 964 case 'z': 965 ARG_REQUIRED; 966 if (!IN_CONFIG_BLOCK(ifo)) 967 ctx->ifav = splitv(&ctx->ifac, ctx->ifav, arg); 968 break; 969 case 'A': 970 ifo->options &= ~DHCPCD_ARP; 971 /* IPv4LL requires ARP */ 972 ifo->options &= ~DHCPCD_IPV4LL; 973 break; 974 case 'B': 975 ifo->options &= ~DHCPCD_DAEMONISE; 976 break; 977 case 'C': 978 ARG_REQUIRED; 979 /* Commas to spaces for shell */ 980 while ((p = strchr(arg, ','))) 981 *p = ' '; 982 dl = strlen("skip_hooks=") + strlen(arg) + 1; 983 p = malloc(sizeof(char) * dl); 984 if (p == NULL) { 985 logerr(__func__); 986 return -1; 987 } 988 snprintf(p, dl, "skip_hooks=%s", arg); 989 add_environ(&ifo->environ, p, 0); 990 free(p); 991 break; 992 case 'D': 993 ifo->options |= DHCPCD_CLIENTID | DHCPCD_DUID; 994 if (ifname != NULL) /* duid type only a global option */ 995 break; 996 if (arg == NULL) 997 ctx->duid_type = DUID_DEFAULT; 998 else if (strcmp(arg, "ll") == 0) 999 ctx->duid_type = DUID_LL; 1000 else if (strcmp(arg, "llt") == 0) 1001 ctx->duid_type = DUID_LLT; 1002 else if (strcmp(arg, "uuid") == 0) 1003 ctx->duid_type = DUID_UUID; 1004 else { 1005 logwarnx("%s: invalid duid type", arg); 1006 ctx->duid_type = DUID_DEFAULT; 1007 } 1008 break; 1009 case 'E': 1010 ifo->options |= DHCPCD_LASTLEASE; 1011 break; 1012 case 'F': 1013 if (!arg) { 1014 ifo->fqdn = FQDN_BOTH; 1015 break; 1016 } 1017 if (strcmp(arg, "none") == 0) 1018 ifo->fqdn = FQDN_NONE; 1019 else if (strcmp(arg, "ptr") == 0) 1020 ifo->fqdn = FQDN_PTR; 1021 else if (strcmp(arg, "both") == 0) 1022 ifo->fqdn = FQDN_BOTH; 1023 else if (strcmp(arg, "disable") == 0) 1024 ifo->fqdn = FQDN_DISABLE; 1025 else { 1026 logerrx("invalid FQDN value: %s", arg); 1027 return -1; 1028 } 1029 break; 1030 case 'G': 1031 ifo->options &= ~DHCPCD_GATEWAY; 1032 break; 1033 case 'H': 1034 ifo->options |= DHCPCD_XID_HWADDR; 1035 break; 1036 case 'I': 1037 /* Strings have a type of 0 */; 1038 ifo->clientid[1] = 0; 1039 if (arg) 1040 s = parse_hwaddr((char *)ifo->clientid + 1, 1041 CLIENTID_MAX_LEN, arg); 1042 else 1043 s = 0; 1044 if (s == -1) { 1045 logerr("clientid"); 1046 return -1; 1047 } 1048 ifo->options |= DHCPCD_CLIENTID; 1049 ifo->clientid[0] = (uint8_t)s; 1050 ifo->options &= ~DHCPCD_DUID; 1051 break; 1052 case 'J': 1053 ifo->options |= DHCPCD_BROADCAST; 1054 break; 1055 case 'K': 1056 ifo->options &= ~DHCPCD_LINK; 1057 break; 1058 case 'L': 1059 ifo->options &= ~DHCPCD_IPV4LL; 1060 break; 1061 case 'M': 1062 ifo->options |= DHCPCD_MASTER; 1063 break; 1064 case 'O': 1065 ARG_REQUIRED; 1066 if (ctx->options & DHCPCD_PRINT_PIDFILE) 1067 break; 1068 set_option_space(ctx, arg, &d, &dl, &od, &odl, ifo, 1069 &request, &require, &no, &reject); 1070 if (make_option_mask(d, dl, od, odl, request, arg, -1) != 0 || 1071 make_option_mask(d, dl, od, odl, require, arg, -1) != 0 || 1072 make_option_mask(d, dl, od, odl, no, arg, 1) != 0) 1073 { 1074 logerrx("unknown option: %s", arg); 1075 return -1; 1076 } 1077 break; 1078 case 'Q': 1079 ARG_REQUIRED; 1080 if (ctx->options & DHCPCD_PRINT_PIDFILE) 1081 break; 1082 set_option_space(ctx, arg, &d, &dl, &od, &odl, ifo, 1083 &request, &require, &no, &reject); 1084 if (make_option_mask(d, dl, od, odl, require, arg, 1) != 0 || 1085 make_option_mask(d, dl, od, odl, request, arg, 1) != 0 || 1086 make_option_mask(d, dl, od, odl, no, arg, -1) != 0 || 1087 make_option_mask(d, dl, od, odl, reject, arg, -1) != 0) 1088 { 1089 logerrx("unknown option: %s", arg); 1090 return -1; 1091 } 1092 break; 1093 case 'S': 1094 ARG_REQUIRED; 1095 p = strchr(arg, '='); 1096 if (p == NULL) { 1097 logerrx("static assignment required"); 1098 return -1; 1099 } 1100 p++; 1101 if (strncmp(arg, "ip_address=", strlen("ip_address=")) == 0) { 1102 if (parse_addr(&ifo->req_addr, 1103 ifo->req_mask.s_addr == 0 ? &ifo->req_mask : NULL, 1104 p) != 0) 1105 return -1; 1106 1107 ifo->options |= DHCPCD_STATIC; 1108 ifo->options &= ~DHCPCD_INFORM; 1109 } else if (strncmp(arg, "subnet_mask=", 1110 strlen("subnet_mask=")) == 0) 1111 { 1112 if (parse_addr(&ifo->req_mask, NULL, p) != 0) 1113 return -1; 1114 } else if (strncmp(arg, "broadcast_address=", 1115 strlen("broadcast_address=")) == 0) 1116 { 1117 if (parse_addr(&ifo->req_brd, NULL, p) != 0) 1118 return -1; 1119 } else if (strncmp(arg, "routes=", strlen("routes=")) == 0 || 1120 strncmp(arg, "static_routes=", 1121 strlen("static_routes=")) == 0 || 1122 strncmp(arg, "classless_static_routes=", 1123 strlen("classless_static_routes=")) == 0 || 1124 strncmp(arg, "ms_classless_static_routes=", 1125 strlen("ms_classless_static_routes=")) == 0) 1126 { 1127 struct in_addr addr3; 1128 1129 fp = np = strwhite(p); 1130 if (np == NULL) { 1131 logerrx("all routes need a gateway"); 1132 return -1; 1133 } 1134 *np++ = '\0'; 1135 np = strskipwhite(np); 1136 if (parse_addr(&addr, &addr2, p) == -1 || 1137 parse_addr(&addr3, NULL, np) == -1) 1138 { 1139 *fp = ' '; 1140 return -1; 1141 } 1142 *fp = ' '; 1143 if ((rt = rt_new0(ctx)) == NULL) 1144 return -1; 1145 sa_in_init(&rt->rt_dest, &addr); 1146 sa_in_init(&rt->rt_netmask, &addr2); 1147 sa_in_init(&rt->rt_gateway, &addr3); 1148 if (rt_proto_add_ctx(&ifo->routes, rt, ctx)) 1149 add_environ(&ifo->config, arg, 0); 1150 } else if (strncmp(arg, "routers=", strlen("routers=")) == 0) { 1151 if (parse_addr(&addr, NULL, p) == -1) 1152 return -1; 1153 if ((rt = rt_new0(ctx)) == NULL) 1154 return -1; 1155 addr2.s_addr = INADDR_ANY; 1156 sa_in_init(&rt->rt_dest, &addr2); 1157 sa_in_init(&rt->rt_netmask, &addr2); 1158 sa_in_init(&rt->rt_gateway, &addr); 1159 if (rt_proto_add_ctx(&ifo->routes, rt, ctx)) 1160 add_environ(&ifo->config, arg, 0); 1161 } else if (strncmp(arg, "interface_mtu=", 1162 strlen("interface_mtu=")) == 0 || 1163 strncmp(arg, "mtu=", strlen("mtu=")) == 0) 1164 { 1165 ifo->mtu = (unsigned int)strtou(p, NULL, 0, 1166 MTU_MIN, MTU_MAX, &e); 1167 if (e) { 1168 logerrx("invalid MTU %s", p); 1169 return -1; 1170 } 1171 } else if (strncmp(arg, "ip6_address=", strlen("ip6_address=")) == 0) { 1172 np = strchr(p, '/'); 1173 if (np) 1174 *np++ = '\0'; 1175 if ((i = inet_pton(AF_INET6, p, &ifo->req_addr6)) == 1) { 1176 if (np) { 1177 ifo->req_prefix_len = (uint8_t)strtou(np, 1178 NULL, 0, 0, 128, &e); 1179 if (e) { 1180 logerrx("%s: failed to " 1181 "convert prefix len", 1182 ifname); 1183 return -1; 1184 } 1185 } else 1186 ifo->req_prefix_len = 128; 1187 } 1188 if (np) 1189 *(--np) = '\0'; 1190 if (i != 1) { 1191 logerrx("invalid AF_INET6: %s", p); 1192 memset(&ifo->req_addr6, 0, 1193 sizeof(ifo->req_addr6)); 1194 return -1; 1195 } 1196 } else 1197 add_environ(&ifo->config, arg, 1); 1198 break; 1199 case 'W': 1200 if (parse_addr(&addr, &addr2, arg) != 0) 1201 return -1; 1202 if (strchr(arg, '/') == NULL) 1203 addr2.s_addr = INADDR_BROADCAST; 1204 naddr = reallocarray(ifo->whitelist, 1205 ifo->whitelist_len + 2, sizeof(in_addr_t)); 1206 if (naddr == NULL) { 1207 logerr(__func__); 1208 return -1; 1209 } 1210 ifo->whitelist = naddr; 1211 ifo->whitelist[ifo->whitelist_len++] = addr.s_addr; 1212 ifo->whitelist[ifo->whitelist_len++] = addr2.s_addr; 1213 break; 1214 case 'X': 1215 if (parse_addr(&addr, &addr2, arg) != 0) 1216 return -1; 1217 if (strchr(arg, '/') == NULL) 1218 addr2.s_addr = INADDR_BROADCAST; 1219 naddr = reallocarray(ifo->blacklist, 1220 ifo->blacklist_len + 2, sizeof(in_addr_t)); 1221 if (naddr == NULL) { 1222 logerr(__func__); 1223 return -1; 1224 } 1225 ifo->blacklist = naddr; 1226 ifo->blacklist[ifo->blacklist_len++] = addr.s_addr; 1227 ifo->blacklist[ifo->blacklist_len++] = addr2.s_addr; 1228 break; 1229 case 'Z': 1230 ARG_REQUIRED; 1231 if (!IN_CONFIG_BLOCK(ifo)) 1232 ctx->ifdv = splitv(&ctx->ifdc, ctx->ifdv, arg); 1233 break; 1234 case '1': 1235 ifo->options |= DHCPCD_ONESHOT; 1236 break; 1237 case '4': 1238 #ifdef INET 1239 ifo->options &= ~DHCPCD_IPV6; 1240 ifo->options |= DHCPCD_IPV4; 1241 break; 1242 #else 1243 logerrx("INET has been compiled out"); 1244 return -1; 1245 #endif 1246 case '6': 1247 #ifdef INET6 1248 ifo->options &= ~DHCPCD_IPV4; 1249 ifo->options |= DHCPCD_IPV6; 1250 break; 1251 #else 1252 logerrx("INET6 has been compiled out"); 1253 return -1; 1254 #endif 1255 case O_IPV4: 1256 ifo->options |= DHCPCD_IPV4; 1257 break; 1258 case O_NOIPV4: 1259 ifo->options &= ~DHCPCD_IPV4; 1260 break; 1261 case O_IPV6: 1262 ifo->options |= DHCPCD_IPV6; 1263 break; 1264 case O_NOIPV6: 1265 ifo->options &= ~DHCPCD_IPV6; 1266 break; 1267 case O_ANONYMOUS: 1268 ifo->options |= DHCPCD_ANONYMOUS; 1269 ifo->options &= ~DHCPCD_HOSTNAME; 1270 ifo->fqdn = FQDN_DISABLE; 1271 1272 /* Block everything */ 1273 memset(ifo->nomask, 0xff, sizeof(ifo->nomask)); 1274 memset(ifo->nomask6, 0xff, sizeof(ifo->nomask6)); 1275 1276 /* Allow the bare minimum through */ 1277 #ifdef INET 1278 del_option_mask(ifo->nomask, DHO_SUBNETMASK); 1279 del_option_mask(ifo->nomask, DHO_CSR); 1280 del_option_mask(ifo->nomask, DHO_ROUTER); 1281 del_option_mask(ifo->nomask, DHO_DNSSERVER); 1282 del_option_mask(ifo->nomask, DHO_DNSDOMAIN); 1283 del_option_mask(ifo->nomask, DHO_BROADCAST); 1284 del_option_mask(ifo->nomask, DHO_STATICROUTE); 1285 del_option_mask(ifo->nomask, DHO_SERVERID); 1286 del_option_mask(ifo->nomask, DHO_RENEWALTIME); 1287 del_option_mask(ifo->nomask, DHO_REBINDTIME); 1288 del_option_mask(ifo->nomask, DHO_DNSSEARCH); 1289 #endif 1290 1291 #ifdef DHCP6 1292 del_option_mask(ifo->nomask6, D6_OPTION_DNS_SERVERS); 1293 del_option_mask(ifo->nomask6, D6_OPTION_DOMAIN_LIST); 1294 del_option_mask(ifo->nomask6, D6_OPTION_SOL_MAX_RT); 1295 del_option_mask(ifo->nomask6, D6_OPTION_INF_MAX_RT); 1296 #endif 1297 1298 break; 1299 #ifdef INET 1300 case O_ARPING: 1301 while (arg != NULL) { 1302 fp = strwhite(arg); 1303 if (fp) 1304 *fp++ = '\0'; 1305 if (parse_addr(&addr, NULL, arg) != 0) 1306 return -1; 1307 naddr = reallocarray(ifo->arping, 1308 (size_t)ifo->arping_len + 1, sizeof(in_addr_t)); 1309 if (naddr == NULL) { 1310 logerr(__func__); 1311 return -1; 1312 } 1313 ifo->arping = naddr; 1314 ifo->arping[ifo->arping_len++] = addr.s_addr; 1315 arg = strskipwhite(fp); 1316 } 1317 break; 1318 case O_DESTINATION: 1319 ARG_REQUIRED; 1320 if (ctx->options & DHCPCD_PRINT_PIDFILE) 1321 break; 1322 set_option_space(ctx, arg, &d, &dl, &od, &odl, ifo, 1323 &request, &require, &no, &reject); 1324 if (make_option_mask(d, dl, od, odl, 1325 ifo->dstmask, arg, 2) != 0) 1326 { 1327 if (errno == EINVAL) 1328 logerrx("option does not take" 1329 " an IPv4 address: %s", arg); 1330 else 1331 logerrx("unknown option: %s", arg); 1332 return -1; 1333 } 1334 break; 1335 case O_FALLBACK: 1336 ARG_REQUIRED; 1337 free(ifo->fallback); 1338 ifo->fallback = strdup(arg); 1339 if (ifo->fallback == NULL) { 1340 logerrx(__func__); 1341 return -1; 1342 } 1343 break; 1344 #endif 1345 case O_IAID: 1346 ARG_REQUIRED; 1347 if (!IN_CONFIG_BLOCK(ifo)) { 1348 logerrx("IAID must belong in an interface block"); 1349 return -1; 1350 } 1351 if (parse_iaid(ifo->iaid, arg, sizeof(ifo->iaid)) == -1) { 1352 logerrx("invalid IAID %s", arg); 1353 return -1; 1354 } 1355 ifo->options |= DHCPCD_IAID; 1356 break; 1357 case O_IPV6RS: 1358 ifo->options |= DHCPCD_IPV6RS; 1359 break; 1360 case O_NOIPV6RS: 1361 ifo->options &= ~DHCPCD_IPV6RS; 1362 break; 1363 case O_IPV6RA_FORK: 1364 ifo->options &= ~DHCPCD_IPV6RA_REQRDNSS; 1365 break; 1366 case O_IPV6RA_AUTOCONF: 1367 ifo->options |= DHCPCD_IPV6RA_AUTOCONF; 1368 break; 1369 case O_IPV6RA_NOAUTOCONF: 1370 ifo->options &= ~DHCPCD_IPV6RA_AUTOCONF; 1371 break; 1372 case O_NOALIAS: 1373 ifo->options |= DHCPCD_NOALIAS; 1374 break; 1375 #ifdef DHCP6 1376 case O_IA_NA: 1377 i = D6_OPTION_IA_NA; 1378 /* FALLTHROUGH */ 1379 case O_IA_TA: 1380 if (i == 0) 1381 i = D6_OPTION_IA_TA; 1382 /* FALLTHROUGH */ 1383 case O_IA_PD: 1384 if (i == 0) { 1385 #ifdef SMALL 1386 logwarnx("%s: IA_PD not compiled in", ifname); 1387 return -1; 1388 #else 1389 if (!IN_CONFIG_BLOCK(ifo)) { 1390 logerrx("IA PD must belong in an " 1391 "interface block"); 1392 return -1; 1393 } 1394 i = D6_OPTION_IA_PD; 1395 #endif 1396 } 1397 if (!IN_CONFIG_BLOCK(ifo) && arg) { 1398 logerrx("IA with IAID must belong in an " 1399 "interface block"); 1400 return -1; 1401 } 1402 ifo->options |= DHCPCD_IA_FORCED; 1403 fp = strwhite(arg); 1404 if (fp) { 1405 *fp++ = '\0'; 1406 fp = strskipwhite(fp); 1407 } 1408 if (arg) { 1409 p = strchr(arg, '/'); 1410 if (p) 1411 *p++ = '\0'; 1412 if (parse_iaid(iaid, arg, sizeof(iaid)) == -1) { 1413 logerr("invalid IAID: %s", arg); 1414 return -1; 1415 } 1416 } 1417 ia = NULL; 1418 for (sl = 0; sl < ifo->ia_len; sl++) { 1419 if ((arg == NULL && !ifo->ia[sl].iaid_set) || 1420 (arg != NULL && ifo->ia[sl].iaid_set && 1421 ifo->ia[sl].ia_type == (uint16_t)i && 1422 ifo->ia[sl].iaid[0] == iaid[0] && 1423 ifo->ia[sl].iaid[1] == iaid[1] && 1424 ifo->ia[sl].iaid[2] == iaid[2] && 1425 ifo->ia[sl].iaid[3] == iaid[3])) 1426 { 1427 ia = &ifo->ia[sl]; 1428 break; 1429 } 1430 } 1431 if (ia == NULL) { 1432 ia = reallocarray(ifo->ia, 1433 ifo->ia_len + 1, sizeof(*ifo->ia)); 1434 if (ia == NULL) { 1435 logerr(__func__); 1436 return -1; 1437 } 1438 ifo->ia = ia; 1439 ia = &ifo->ia[ifo->ia_len++]; 1440 ia->ia_type = (uint16_t)i; 1441 if (arg) { 1442 ia->iaid[0] = iaid[0]; 1443 ia->iaid[1] = iaid[1]; 1444 ia->iaid[2] = iaid[2]; 1445 ia->iaid[3] = iaid[3]; 1446 ia->iaid_set = 1; 1447 } else 1448 ia->iaid_set = 0; 1449 if (!ia->iaid_set || 1450 p == NULL || 1451 ia->ia_type == D6_OPTION_IA_TA) 1452 { 1453 memset(&ia->addr, 0, sizeof(ia->addr)); 1454 ia->prefix_len = 0; 1455 } else { 1456 arg = p; 1457 p = strchr(arg, '/'); 1458 if (p) 1459 *p++ = '\0'; 1460 if (inet_pton(AF_INET6, arg, &ia->addr) != 1) { 1461 logerrx("invalid AF_INET6: %s", arg); 1462 memset(&ia->addr, 0, sizeof(ia->addr)); 1463 } 1464 if (p && ia->ia_type == D6_OPTION_IA_PD) { 1465 ia->prefix_len = (uint8_t)strtou(p, 1466 NULL, 0, 8, 120, &e); 1467 if (e) { 1468 logerrx("%s: failed to convert" 1469 " prefix len", 1470 p); 1471 ia->prefix_len = 0; 1472 } 1473 } 1474 } 1475 #ifndef SMALL 1476 ia->sla_max = 0; 1477 ia->sla_len = 0; 1478 ia->sla = NULL; 1479 #endif 1480 } 1481 1482 #ifdef SMALL 1483 break; 1484 #else 1485 if (ia->ia_type != D6_OPTION_IA_PD) 1486 break; 1487 1488 for (p = fp; p; p = fp) { 1489 fp = strwhite(p); 1490 if (fp) { 1491 *fp++ = '\0'; 1492 fp = strskipwhite(fp); 1493 } 1494 sla = reallocarray(ia->sla, 1495 ia->sla_len + 1, sizeof(*ia->sla)); 1496 if (sla == NULL) { 1497 logerr(__func__); 1498 return -1; 1499 } 1500 ia->sla = sla; 1501 sla = &ia->sla[ia->sla_len++]; 1502 np = strchr(p, '/'); 1503 if (np) 1504 *np++ = '\0'; 1505 if (strlcpy(sla->ifname, p, 1506 sizeof(sla->ifname)) >= sizeof(sla->ifname)) 1507 { 1508 logerrx("%s: interface name too long", arg); 1509 goto err_sla; 1510 } 1511 sla->sla_set = false; 1512 sla->prefix_len = 0; 1513 sla->suffix = 1; 1514 p = np; 1515 if (p) { 1516 np = strchr(p, '/'); 1517 if (np) 1518 *np++ = '\0'; 1519 if (*p != '\0') { 1520 sla->sla = (uint32_t)strtou(p, NULL, 1521 0, 0, UINT32_MAX, &e); 1522 sla->sla_set = true; 1523 if (e) { 1524 logerrx("%s: failed to convert " 1525 "sla", 1526 ifname); 1527 goto err_sla; 1528 } 1529 } 1530 p = np; 1531 } 1532 if (p) { 1533 np = strchr(p, '/'); 1534 if (np) 1535 *np++ = '\0'; 1536 if (*p != '\0') { 1537 sla->prefix_len = (uint8_t)strtou(p, 1538 NULL, 0, 0, 120, &e); 1539 if (e) { 1540 logerrx("%s: failed to " 1541 "convert prefix len", 1542 ifname); 1543 goto err_sla; 1544 } 1545 } 1546 p = np; 1547 } 1548 if (p) { 1549 np = strchr(p, '/'); 1550 if (np) 1551 *np = '\0'; 1552 if (*p != '\0') { 1553 sla->suffix = (uint64_t)strtou(p, NULL, 1554 0, 0, UINT64_MAX, &e); 1555 if (e) { 1556 logerrx("%s: failed to " 1557 "convert suffix", 1558 ifname); 1559 goto err_sla; 1560 } 1561 } 1562 } 1563 /* Sanity check */ 1564 for (sl = 0; sl < ia->sla_len - 1; sl++) { 1565 slap = &ia->sla[sl]; 1566 if (slap->sla_set != sla->sla_set) { 1567 logerrx("%s: cannot mix automatic " 1568 "and fixed SLA", 1569 sla->ifname); 1570 goto err_sla; 1571 } 1572 if (ia->prefix_len && 1573 (sla->prefix_len == ia->prefix_len || 1574 slap->prefix_len == ia->prefix_len)) 1575 { 1576 logerrx("%s: cannot delegte the same" 1577 "prefix length more than once", 1578 sla->ifname); 1579 goto err_sla; 1580 } 1581 if (!sla->sla_set && 1582 strcmp(slap->ifname, sla->ifname) == 0) 1583 { 1584 logwarnx("%s: cannot specify the " 1585 "same interface twice with " 1586 "an automatic SLA", 1587 sla->ifname); 1588 goto err_sla; 1589 } 1590 if (slap->sla_set && sla->sla_set && 1591 slap->sla == sla->sla) 1592 { 1593 logerrx("%s: cannot" 1594 " assign the same SLA %u" 1595 " more than once", 1596 sla->ifname, sla->sla); 1597 goto err_sla; 1598 } 1599 } 1600 if (sla->sla_set && sla->sla > ia->sla_max) 1601 ia->sla_max = sla->sla; 1602 } 1603 break; 1604 err_sla: 1605 ia->sla_len--; 1606 return -1; 1607 #endif 1608 #endif 1609 case O_HOSTNAME_SHORT: 1610 ifo->options |= DHCPCD_HOSTNAME | DHCPCD_HOSTNAME_SHORT; 1611 break; 1612 case O_DEV: 1613 ARG_REQUIRED; 1614 #ifdef PLUGIN_DEV 1615 if (ctx->dev_load) 1616 free(ctx->dev_load); 1617 ctx->dev_load = strdup(arg); 1618 #endif 1619 break; 1620 case O_NODEV: 1621 ifo->options &= ~DHCPCD_DEV; 1622 break; 1623 case O_DEFINE: 1624 dop = &ifo->dhcp_override; 1625 dop_len = &ifo->dhcp_override_len; 1626 /* FALLTHROUGH */ 1627 case O_DEFINEND: 1628 if (dop == NULL) { 1629 dop = &ifo->nd_override; 1630 dop_len = &ifo->nd_override_len; 1631 } 1632 /* FALLTHROUGH */ 1633 case O_DEFINE6: 1634 if (dop == NULL) { 1635 dop = &ifo->dhcp6_override; 1636 dop_len = &ifo->dhcp6_override_len; 1637 } 1638 /* FALLTHROUGH */ 1639 case O_VENDOPT: 1640 if (dop == NULL) { 1641 dop = &ifo->vivso_override; 1642 dop_len = &ifo->vivso_override_len; 1643 } 1644 *edop = *ldop = NULL; 1645 /* FALLTHROUGH */ 1646 case O_EMBED: 1647 if (dop == NULL) { 1648 if (*edop) { 1649 dop = &(*edop)->embopts; 1650 dop_len = &(*edop)->embopts_len; 1651 } else if (ldop) { 1652 dop = &(*ldop)->embopts; 1653 dop_len = &(*ldop)->embopts_len; 1654 } else { 1655 logerrx("embed must be after a define " 1656 "or encap"); 1657 return -1; 1658 } 1659 } 1660 /* FALLTHROUGH */ 1661 case O_ENCAP: 1662 ARG_REQUIRED; 1663 if (dop == NULL) { 1664 if (*ldop == NULL) { 1665 logerrx("encap must be after a define"); 1666 return -1; 1667 } 1668 dop = &(*ldop)->encopts; 1669 dop_len = &(*ldop)->encopts_len; 1670 } 1671 1672 /* Shared code for define, define6, embed and encap */ 1673 1674 /* code */ 1675 if (opt == O_EMBED) /* Embedded options don't have codes */ 1676 u = 0; 1677 else { 1678 fp = strwhite(arg); 1679 if (fp == NULL) { 1680 logerrx("invalid syntax: %s", arg); 1681 return -1; 1682 } 1683 *fp++ = '\0'; 1684 u = (uint32_t)strtou(arg, NULL, 0, 0, UINT32_MAX, &e); 1685 if (e) { 1686 logerrx("invalid code: %s", arg); 1687 return -1; 1688 } 1689 arg = strskipwhite(fp); 1690 if (arg == NULL) { 1691 logerrx("invalid syntax"); 1692 return -1; 1693 } 1694 } 1695 /* type */ 1696 fp = strwhite(arg); 1697 if (fp) 1698 *fp++ = '\0'; 1699 np = strchr(arg, ':'); 1700 /* length */ 1701 if (np) { 1702 *np++ = '\0'; 1703 bp = NULL; /* No bitflag */ 1704 l = (long)strtou(np, NULL, 0, 0, LONG_MAX, &e); 1705 if (e) { 1706 logerrx("failed to convert length"); 1707 return -1; 1708 } 1709 } else { 1710 l = 0; 1711 bp = strchr(arg, '='); /* bitflag assignment */ 1712 if (bp) 1713 *bp++ = '\0'; 1714 } 1715 t = 0; 1716 if (strcasecmp(arg, "request") == 0) { 1717 t |= OT_REQUEST; 1718 arg = strskipwhite(fp); 1719 fp = strwhite(arg); 1720 if (fp == NULL) { 1721 logerrx("incomplete request type"); 1722 return -1; 1723 } 1724 *fp++ = '\0'; 1725 } else if (strcasecmp(arg, "norequest") == 0) { 1726 t |= OT_NOREQ; 1727 arg = strskipwhite(fp); 1728 fp = strwhite(arg); 1729 if (fp == NULL) { 1730 logerrx("incomplete request type"); 1731 return -1; 1732 } 1733 *fp++ = '\0'; 1734 } 1735 if (strcasecmp(arg, "optional") == 0) { 1736 t |= OT_OPTIONAL; 1737 arg = strskipwhite(fp); 1738 fp = strwhite(arg); 1739 if (fp == NULL) { 1740 logerrx("incomplete optional type"); 1741 return -1; 1742 } 1743 *fp++ = '\0'; 1744 } 1745 if (strcasecmp(arg, "index") == 0) { 1746 t |= OT_INDEX; 1747 arg = strskipwhite(fp); 1748 fp = strwhite(arg); 1749 if (fp == NULL) { 1750 logerrx("incomplete index type"); 1751 return -1; 1752 } 1753 *fp++ = '\0'; 1754 } 1755 if (strcasecmp(arg, "array") == 0) { 1756 t |= OT_ARRAY; 1757 arg = strskipwhite(fp); 1758 fp = strwhite(arg); 1759 if (fp == NULL) { 1760 logerrx("incomplete array type"); 1761 return -1; 1762 } 1763 *fp++ = '\0'; 1764 } 1765 if (strcasecmp(arg, "ipaddress") == 0) 1766 t |= OT_ADDRIPV4; 1767 else if (strcasecmp(arg, "ip6address") == 0) 1768 t |= OT_ADDRIPV6; 1769 else if (strcasecmp(arg, "string") == 0) 1770 t |= OT_STRING; 1771 else if (strcasecmp(arg, "byte") == 0) 1772 t |= OT_UINT8; 1773 else if (strcasecmp(arg, "bitflags") == 0) 1774 t |= OT_BITFLAG; 1775 else if (strcasecmp(arg, "uint8") == 0) 1776 t |= OT_UINT8; 1777 else if (strcasecmp(arg, "int8") == 0) 1778 t |= OT_INT8; 1779 else if (strcasecmp(arg, "uint16") == 0) 1780 t |= OT_UINT16; 1781 else if (strcasecmp(arg, "int16") == 0) 1782 t |= OT_INT16; 1783 else if (strcasecmp(arg, "uint32") == 0) 1784 t |= OT_UINT32; 1785 else if (strcasecmp(arg, "int32") == 0) 1786 t |= OT_INT32; 1787 else if (strcasecmp(arg, "flag") == 0) 1788 t |= OT_FLAG; 1789 else if (strcasecmp(arg, "raw") == 0) 1790 t |= OT_STRING | OT_RAW; 1791 else if (strcasecmp(arg, "ascii") == 0) 1792 t |= OT_STRING | OT_ASCII; 1793 else if (strcasecmp(arg, "domain") == 0) 1794 t |= OT_STRING | OT_DOMAIN | OT_RFC1035; 1795 else if (strcasecmp(arg, "dname") == 0) 1796 t |= OT_STRING | OT_DOMAIN; 1797 else if (strcasecmp(arg, "binhex") == 0) 1798 t |= OT_STRING | OT_BINHEX; 1799 else if (strcasecmp(arg, "embed") == 0) 1800 t |= OT_EMBED; 1801 else if (strcasecmp(arg, "encap") == 0) 1802 t |= OT_ENCAP; 1803 else if (strcasecmp(arg, "rfc3361") ==0) 1804 t |= OT_STRING | OT_RFC3361; 1805 else if (strcasecmp(arg, "rfc3442") ==0) 1806 t |= OT_STRING | OT_RFC3442; 1807 else if (strcasecmp(arg, "option") == 0) 1808 t |= OT_OPTION; 1809 else { 1810 logerrx("unknown type: %s", arg); 1811 return -1; 1812 } 1813 if (l && !(t & (OT_STRING | OT_BINHEX))) { 1814 logwarnx("ignoring length for type: %s", arg); 1815 l = 0; 1816 } 1817 if (t & OT_ARRAY && t & (OT_STRING | OT_BINHEX) && 1818 !(t & (OT_RFC1035 | OT_DOMAIN))) 1819 { 1820 logwarnx("ignoring array for strings"); 1821 t &= ~OT_ARRAY; 1822 } 1823 if (t & OT_BITFLAG) { 1824 if (bp == NULL) 1825 logwarnx("missing bitflag assignment"); 1826 } 1827 /* variable */ 1828 if (!fp) { 1829 if (!(t & OT_OPTION)) { 1830 logerrx("type %s requires a variable name", 1831 arg); 1832 return -1; 1833 } 1834 np = NULL; 1835 } else { 1836 arg = strskipwhite(fp); 1837 fp = strwhite(arg); 1838 if (fp) 1839 *fp++ = '\0'; 1840 if (strcasecmp(arg, "reserved")) { 1841 np = strdup(arg); 1842 if (np == NULL) { 1843 logerr(__func__); 1844 return -1; 1845 } 1846 } else { 1847 np = NULL; 1848 t |= OT_RESERVED; 1849 } 1850 } 1851 if (opt != O_EMBED) { 1852 for (dl = 0, ndop = *dop; dl < *dop_len; dl++, ndop++) 1853 { 1854 /* type 0 seems freshly malloced struct 1855 * for us to use */ 1856 if (ndop->option == u || ndop->type == 0) 1857 break; 1858 } 1859 if (dl == *dop_len) 1860 ndop = NULL; 1861 } else 1862 ndop = NULL; 1863 if (ndop == NULL) { 1864 ndop = reallocarray(*dop, *dop_len + 1, sizeof(**dop)); 1865 if (ndop == NULL) { 1866 logerr(__func__); 1867 free(np); 1868 return -1; 1869 } 1870 *dop = ndop; 1871 ndop = &(*dop)[(*dop_len)++]; 1872 ndop->embopts = NULL; 1873 ndop->embopts_len = 0; 1874 ndop->encopts = NULL; 1875 ndop->encopts_len = 0; 1876 } else 1877 free_dhcp_opt_embenc(ndop); 1878 ndop->option = (uint32_t)u; /* could have been 0 */ 1879 ndop->type = t; 1880 ndop->len = (size_t)l; 1881 ndop->var = np; 1882 if (bp) { 1883 dl = strlen(bp); 1884 memcpy(ndop->bitflags, bp, dl); 1885 memset(ndop->bitflags + dl, 0, 1886 sizeof(ndop->bitflags) - dl); 1887 } else 1888 memset(ndop->bitflags, 0, sizeof(ndop->bitflags)); 1889 /* Save the define for embed and encap options */ 1890 switch (opt) { 1891 case O_DEFINE: 1892 case O_DEFINEND: 1893 case O_DEFINE6: 1894 case O_VENDOPT: 1895 *ldop = ndop; 1896 break; 1897 case O_ENCAP: 1898 *edop = ndop; 1899 break; 1900 } 1901 break; 1902 case O_VENDCLASS: 1903 ARG_REQUIRED; 1904 fp = strwhite(arg); 1905 if (fp) 1906 *fp++ = '\0'; 1907 u = (uint32_t)strtou(arg, NULL, 0, 0, UINT32_MAX, &e); 1908 if (e) { 1909 logerrx("invalid code: %s", arg); 1910 return -1; 1911 } 1912 fp = strskipwhite(fp); 1913 if (fp) { 1914 s = parse_string(NULL, 0, fp); 1915 if (s == -1) { 1916 logerr(__func__); 1917 return -1; 1918 } 1919 dl = (size_t)s; 1920 if (dl + (sizeof(uint16_t) * 2) > UINT16_MAX) { 1921 logerrx("vendor class is too big"); 1922 return -1; 1923 } 1924 np = malloc(dl); 1925 if (np == NULL) { 1926 logerr(__func__); 1927 return -1; 1928 } 1929 parse_string(np, dl, fp); 1930 } else { 1931 dl = 0; 1932 np = NULL; 1933 } 1934 vivco = reallocarray(ifo->vivco, 1935 ifo->vivco_len + 1, sizeof(*ifo->vivco)); 1936 if (vivco == NULL) { 1937 logerr( __func__); 1938 free(np); 1939 return -1; 1940 } 1941 ifo->vivco = vivco; 1942 ifo->vivco_en = (uint32_t)u; 1943 vivco = &ifo->vivco[ifo->vivco_len++]; 1944 vivco->len = dl; 1945 vivco->data = (uint8_t *)np; 1946 break; 1947 case O_AUTHPROTOCOL: 1948 ARG_REQUIRED; 1949 #ifdef AUTH 1950 fp = strwhite(arg); 1951 if (fp) 1952 *fp++ = '\0'; 1953 if (strcasecmp(arg, "token") == 0) 1954 ifo->auth.protocol = AUTH_PROTO_TOKEN; 1955 else if (strcasecmp(arg, "delayed") == 0) 1956 ifo->auth.protocol = AUTH_PROTO_DELAYED; 1957 else if (strcasecmp(arg, "delayedrealm") == 0) 1958 ifo->auth.protocol = AUTH_PROTO_DELAYEDREALM; 1959 else { 1960 logerrx("%s: unsupported protocol", arg); 1961 return -1; 1962 } 1963 arg = strskipwhite(fp); 1964 fp = strwhite(arg); 1965 if (arg == NULL) { 1966 ifo->auth.options |= DHCPCD_AUTH_SEND; 1967 if (ifo->auth.protocol == AUTH_PROTO_TOKEN) 1968 ifo->auth.protocol = AUTH_ALG_NONE; 1969 else 1970 ifo->auth.algorithm = AUTH_ALG_HMAC_MD5; 1971 ifo->auth.rdm = AUTH_RDM_MONOTONIC; 1972 break; 1973 } 1974 if (fp) 1975 *fp++ = '\0'; 1976 if (ifo->auth.protocol == AUTH_PROTO_TOKEN) { 1977 np = strchr(arg, '/'); 1978 if (np) { 1979 if (fp == NULL || np < fp) 1980 *np++ = '\0'; 1981 else 1982 np = NULL; 1983 } 1984 if (parse_uint32(&ifo->auth.token_snd_secretid, 1985 arg) == -1) 1986 logerrx("%s: not a number", arg); 1987 else 1988 ifo->auth.token_rcv_secretid = 1989 ifo->auth.token_snd_secretid; 1990 if (np && 1991 parse_uint32(&ifo->auth.token_rcv_secretid, 1992 np) == -1) 1993 logerrx("%s: not a number", arg); 1994 } else { 1995 if (strcasecmp(arg, "hmacmd5") == 0 || 1996 strcasecmp(arg, "hmac-md5") == 0) 1997 ifo->auth.algorithm = AUTH_ALG_HMAC_MD5; 1998 else { 1999 logerrx("%s: unsupported algorithm", arg); 2000 return 1; 2001 } 2002 } 2003 arg = fp; 2004 if (arg == NULL) { 2005 ifo->auth.options |= DHCPCD_AUTH_SEND; 2006 ifo->auth.rdm = AUTH_RDM_MONOTONIC; 2007 break; 2008 } 2009 if (strcasecmp(arg, "monocounter") == 0) { 2010 ifo->auth.rdm = AUTH_RDM_MONOTONIC; 2011 ifo->auth.options |= DHCPCD_AUTH_RDM_COUNTER; 2012 } else if (strcasecmp(arg, "monotonic") ==0 || 2013 strcasecmp(arg, "monotime") == 0) 2014 ifo->auth.rdm = AUTH_RDM_MONOTONIC; 2015 else { 2016 logerrx("%s: unsupported RDM", arg); 2017 return -1; 2018 } 2019 ifo->auth.options |= DHCPCD_AUTH_SEND; 2020 break; 2021 #else 2022 logerrx("no authentication support"); 2023 return -1; 2024 #endif 2025 case O_AUTHTOKEN: 2026 ARG_REQUIRED; 2027 #ifdef AUTH 2028 fp = strwhite(arg); 2029 if (fp == NULL) { 2030 logerrx("authtoken requires a realm"); 2031 return -1; 2032 } 2033 *fp++ = '\0'; 2034 token = calloc(1, sizeof(*token)); 2035 if (token == NULL) { 2036 logerr(__func__); 2037 return -1; 2038 } 2039 if (parse_uint32(&token->secretid, arg) == -1) { 2040 logerrx("%s: not a number", arg); 2041 goto invalid_token; 2042 } 2043 arg = fp; 2044 fp = strend(arg); 2045 if (fp == NULL) { 2046 logerrx("authtoken requies an a key"); 2047 goto invalid_token; 2048 } 2049 *fp++ = '\0'; 2050 s = parse_string(NULL, 0, arg); 2051 if (s == -1) { 2052 logerr("realm_len"); 2053 goto invalid_token; 2054 } 2055 if (s != 0) { 2056 token->realm_len = (size_t)s; 2057 token->realm = malloc(token->realm_len); 2058 if (token->realm == NULL) { 2059 logerr(__func__); 2060 goto invalid_token; 2061 } 2062 parse_string((char *)token->realm, token->realm_len, 2063 arg); 2064 } 2065 arg = fp; 2066 fp = strend(arg); 2067 if (fp == NULL) { 2068 logerrx("authtoken requies an expiry date"); 2069 goto invalid_token; 2070 } 2071 *fp++ = '\0'; 2072 if (*arg == '"') { 2073 arg++; 2074 np = strchr(arg, '"'); 2075 if (np) 2076 *np = '\0'; 2077 } 2078 if (strcmp(arg, "0") == 0 || strcasecmp(arg, "forever") == 0) 2079 token->expire =0; 2080 else { 2081 struct tm tm; 2082 2083 memset(&tm, 0, sizeof(tm)); 2084 if (strptime(arg, "%Y-%m-%d %H:%M", &tm) == NULL) { 2085 logerrx("%s: invalid date time", arg); 2086 goto invalid_token; 2087 } 2088 if ((token->expire = mktime(&tm)) == (time_t)-1) { 2089 logerr("%s: mktime", __func__); 2090 goto invalid_token; 2091 } 2092 } 2093 arg = fp; 2094 s = parse_string(NULL, 0, arg); 2095 if (s == -1 || s == 0) { 2096 if (s == -1) 2097 logerr("token_len"); 2098 else 2099 logerrx("authtoken needs a key"); 2100 goto invalid_token; 2101 } 2102 token->key_len = (size_t)s; 2103 token->key = malloc(token->key_len); 2104 if (token->key == NULL) { 2105 logerr(__func__); 2106 goto invalid_token; 2107 } 2108 parse_string((char *)token->key, token->key_len, arg); 2109 TAILQ_INSERT_TAIL(&ifo->auth.tokens, token, next); 2110 break; 2111 2112 invalid_token: 2113 free(token->realm); 2114 free(token); 2115 #else 2116 logerrx("no authentication support"); 2117 #endif 2118 return -1; 2119 case O_AUTHNOTREQUIRED: 2120 ifo->auth.options &= ~DHCPCD_AUTH_REQUIRE; 2121 break; 2122 case O_DHCP: 2123 ifo->options |= DHCPCD_DHCP | DHCPCD_WANTDHCP | DHCPCD_IPV4; 2124 break; 2125 case O_NODHCP: 2126 ifo->options &= ~DHCPCD_DHCP; 2127 break; 2128 case O_DHCP6: 2129 ifo->options |= DHCPCD_DHCP6 | DHCPCD_IPV6; 2130 break; 2131 case O_NODHCP6: 2132 ifo->options &= ~DHCPCD_DHCP6; 2133 break; 2134 case O_CONTROLGRP: 2135 ARG_REQUIRED; 2136 #ifdef PRIVSEP 2137 /* Control group is already set by this point. 2138 * We don't need to pledge getpw either with this. */ 2139 if (IN_PRIVSEP(ctx)) 2140 break; 2141 #endif 2142 #ifdef _REENTRANT 2143 l = sysconf(_SC_GETGR_R_SIZE_MAX); 2144 if (l == -1) 2145 dl = 1024; 2146 else 2147 dl = (size_t)l; 2148 p = malloc(dl); 2149 if (p == NULL) { 2150 logerr(__func__); 2151 return -1; 2152 } 2153 while ((i = getgrnam_r(arg, &grpbuf, p, dl, &grp)) == 2154 ERANGE) 2155 { 2156 size_t nl = dl * 2; 2157 if (nl < dl) { 2158 logerrx("control_group: out of buffer"); 2159 free(p); 2160 return -1; 2161 } 2162 dl = nl; 2163 np = realloc(p, dl); 2164 if (np == NULL) { 2165 logerr(__func__); 2166 free(p); 2167 return -1; 2168 } 2169 p = np; 2170 } 2171 if (i != 0) { 2172 errno = i; 2173 logerr("getgrnam_r"); 2174 free(p); 2175 return -1; 2176 } 2177 if (grp == NULL) { 2178 if (!ctx->control_group) 2179 logerrx("controlgroup: %s: not found", arg); 2180 free(p); 2181 return -1; 2182 } 2183 ctx->control_group = grp->gr_gid; 2184 free(p); 2185 #else 2186 grp = getgrnam(arg); 2187 if (grp == NULL) { 2188 if (!ctx->control_group) 2189 logerrx("controlgroup: %s: not found", arg); 2190 return -1; 2191 } 2192 ctx->control_group = grp->gr_gid; 2193 #endif 2194 break; 2195 case O_GATEWAY: 2196 ifo->options |= DHCPCD_GATEWAY; 2197 break; 2198 case O_NOUP: 2199 ifo->options &= ~DHCPCD_IF_UP; 2200 break; 2201 case O_SLAAC: 2202 ARG_REQUIRED; 2203 np = strwhite(arg); 2204 if (np != NULL) { 2205 *np++ = '\0'; 2206 np = strskipwhite(np); 2207 } 2208 if (strcmp(arg, "private") == 0 || 2209 strcmp(arg, "stableprivate") == 0 || 2210 strcmp(arg, "stable") == 0) 2211 ifo->options |= DHCPCD_SLAACPRIVATE; 2212 else 2213 ifo->options &= ~DHCPCD_SLAACPRIVATE; 2214 if (np != NULL && 2215 (strcmp(np, "temp") == 0 || strcmp(np, "temporary") == 0)) 2216 ifo->options |= DHCPCD_SLAACTEMP; 2217 break; 2218 case O_BOOTP: 2219 ifo->options |= DHCPCD_BOOTP; 2220 break; 2221 case O_NODELAY: 2222 ifo->options &= ~DHCPCD_INITIAL_DELAY; 2223 break; 2224 case O_LASTLEASE_EXTEND: 2225 ifo->options |= DHCPCD_LASTLEASE | DHCPCD_LASTLEASE_EXTEND; 2226 break; 2227 case O_INACTIVE: 2228 ifo->options |= DHCPCD_INACTIVE; 2229 break; 2230 case O_MUDURL: 2231 ARG_REQUIRED; 2232 s = parse_string((char *)ifo->mudurl + 1, MUDURL_MAX_LEN, arg); 2233 if (s == -1) { 2234 logerr("mudurl"); 2235 return -1; 2236 } 2237 *ifo->mudurl = (uint8_t)s; 2238 break; 2239 case O_LINK_RCVBUF: 2240 #ifndef SMALL 2241 ARG_REQUIRED; 2242 ctx->link_rcvbuf = (int)strtoi(arg, NULL, 0, 0, INT32_MAX, &e); 2243 if (e) { 2244 logerrx("failed to convert link_rcvbuf %s", arg); 2245 return -1; 2246 } 2247 #endif 2248 break; 2249 case O_CONFIGURE: 2250 ifo->options |= DHCPCD_CONFIGURE; 2251 break; 2252 case O_NOCONFIGURE: 2253 ifo->options &= ~DHCPCD_CONFIGURE; 2254 break; 2255 default: 2256 return 0; 2257 } 2258 2259 return 1; 2260 2261 #ifdef ARG_REQUIRED 2262 arg_required: 2263 logerrx("option %d requires an argument", opt); 2264 return -1; 2265 #undef ARG_REQUIRED 2266 #endif 2267 } 2268 2269 static int 2270 parse_config_line(struct dhcpcd_ctx *ctx, const char *ifname, 2271 struct if_options *ifo, const char *opt, char *line, 2272 struct dhcp_opt **ldop, struct dhcp_opt **edop) 2273 { 2274 unsigned int i; 2275 2276 for (i = 0; i < sizeof(cf_options) / sizeof(cf_options[0]); i++) { 2277 if (!cf_options[i].name || 2278 strcmp(cf_options[i].name, opt) != 0) 2279 continue; 2280 2281 if (cf_options[i].has_arg == required_argument && !line) { 2282 logerrx("option requires an argument -- %s", opt); 2283 return -1; 2284 } 2285 2286 return parse_option(ctx, ifname, ifo, cf_options[i].val, line, 2287 ldop, edop); 2288 } 2289 2290 if (!(ctx->options & DHCPCD_PRINT_PIDFILE)) 2291 logerrx("unknown option: %s", opt); 2292 return -1; 2293 } 2294 2295 static void 2296 finish_config(struct if_options *ifo) 2297 { 2298 2299 /* Terminate the encapsulated options */ 2300 if (ifo->vendor[0] && !(ifo->options & DHCPCD_VENDORRAW)) { 2301 ifo->vendor[0]++; 2302 ifo->vendor[ifo->vendor[0]] = DHO_END; 2303 /* We are called twice. 2304 * This should be fixed, but in the meantime, this 2305 * guard should suffice */ 2306 ifo->options |= DHCPCD_VENDORRAW; 2307 } 2308 2309 if (!(ifo->options & DHCPCD_ARP) || 2310 ifo->options & (DHCPCD_INFORM | DHCPCD_STATIC)) 2311 ifo->options &= ~DHCPCD_IPV4LL; 2312 2313 if (!(ifo->options & DHCPCD_IPV4)) 2314 ifo->options &= ~(DHCPCD_DHCP | DHCPCD_IPV4LL | DHCPCD_WAITIP4); 2315 2316 if (!(ifo->options & DHCPCD_IPV6)) 2317 ifo->options &= 2318 ~(DHCPCD_IPV6RS | DHCPCD_DHCP6 | DHCPCD_WAITIP6); 2319 2320 if (!(ifo->options & DHCPCD_IPV6RS)) 2321 ifo->options &= 2322 ~(DHCPCD_IPV6RA_AUTOCONF | DHCPCD_IPV6RA_REQRDNSS); 2323 } 2324 2325 struct if_options * 2326 default_config(struct dhcpcd_ctx *ctx) 2327 { 2328 struct if_options *ifo; 2329 2330 /* Seed our default options */ 2331 if ((ifo = calloc(1, sizeof(*ifo))) == NULL) { 2332 logerr(__func__); 2333 return NULL; 2334 } 2335 ifo->options |= DHCPCD_IF_UP | DHCPCD_LINK | DHCPCD_INITIAL_DELAY; 2336 ifo->timeout = DEFAULT_TIMEOUT; 2337 ifo->reboot = DEFAULT_REBOOT; 2338 ifo->metric = -1; 2339 ifo->auth.options |= DHCPCD_AUTH_REQUIRE; 2340 rb_tree_init(&ifo->routes, &rt_compare_list_ops); 2341 #ifdef AUTH 2342 TAILQ_INIT(&ifo->auth.tokens); 2343 #endif 2344 2345 /* Inherit some global defaults */ 2346 if (ctx->options & DHCPCD_PERSISTENT) 2347 ifo->options |= DHCPCD_PERSISTENT; 2348 if (ctx->options & DHCPCD_SLAACPRIVATE) 2349 ifo->options |= DHCPCD_SLAACPRIVATE; 2350 2351 return ifo; 2352 } 2353 2354 struct if_options * 2355 read_config(struct dhcpcd_ctx *ctx, 2356 const char *ifname, const char *ssid, const char *profile) 2357 { 2358 struct if_options *ifo; 2359 char buf[UDPLEN_MAX], *bp; /* 64k max config file size */ 2360 char *line, *option, *p; 2361 ssize_t buflen; 2362 size_t vlen; 2363 int skip, have_profile, new_block, had_block; 2364 #if !defined(INET) || !defined(INET6) 2365 size_t i; 2366 struct dhcp_opt *opt; 2367 #endif 2368 struct dhcp_opt *ldop, *edop; 2369 2370 /* Seed our default options */ 2371 if ((ifo = default_config(ctx)) == NULL) 2372 return NULL; 2373 if (default_options == 0) { 2374 default_options |= DHCPCD_DAEMONISE | 2375 DHCPCD_CONFIGURE | DHCPCD_GATEWAY; 2376 #ifdef INET 2377 skip = socket(PF_INET, SOCK_DGRAM, 0); 2378 if (skip != -1) { 2379 close(skip); 2380 default_options |= DHCPCD_IPV4 | DHCPCD_ARP | 2381 DHCPCD_DHCP | DHCPCD_IPV4LL; 2382 } 2383 #endif 2384 #ifdef INET6 2385 skip = socket(PF_INET6, SOCK_DGRAM, 0); 2386 if (skip != -1) { 2387 close(skip); 2388 default_options |= DHCPCD_IPV6 | DHCPCD_IPV6RS | 2389 DHCPCD_IPV6RA_AUTOCONF | DHCPCD_IPV6RA_REQRDNSS | 2390 DHCPCD_DHCP6; 2391 } 2392 #endif 2393 #ifdef PLUGIN_DEV 2394 default_options |= DHCPCD_DEV; 2395 #endif 2396 } 2397 ifo->options |= default_options; 2398 2399 CLEAR_CONFIG_BLOCK(ifo); 2400 2401 vlen = strlcpy((char *)ifo->vendorclassid + 1, ctx->vendor, 2402 sizeof(ifo->vendorclassid) - 1); 2403 ifo->vendorclassid[0] = (uint8_t)(vlen > 255 ? 0 : vlen); 2404 2405 /* Reset route order */ 2406 ctx->rt_order = 0; 2407 2408 /* Parse our embedded options file */ 2409 if (ifname == NULL && !(ctx->options & DHCPCD_PRINT_PIDFILE)) { 2410 /* Space for initial estimates */ 2411 #if defined(INET) && defined(INITDEFINES) 2412 ifo->dhcp_override = 2413 calloc(INITDEFINES, sizeof(*ifo->dhcp_override)); 2414 if (ifo->dhcp_override == NULL) 2415 logerr(__func__); 2416 else 2417 ifo->dhcp_override_len = INITDEFINES; 2418 #endif 2419 2420 #if defined(INET6) && defined(INITDEFINENDS) 2421 ifo->nd_override = 2422 calloc(INITDEFINENDS, sizeof(*ifo->nd_override)); 2423 if (ifo->nd_override == NULL) 2424 logerr(__func__); 2425 else 2426 ifo->nd_override_len = INITDEFINENDS; 2427 #endif 2428 #if defined(INET6) && defined(INITDEFINE6S) 2429 ifo->dhcp6_override = 2430 calloc(INITDEFINE6S, sizeof(*ifo->dhcp6_override)); 2431 if (ifo->dhcp6_override == NULL) 2432 logerr(__func__); 2433 else 2434 ifo->dhcp6_override_len = INITDEFINE6S; 2435 #endif 2436 2437 /* Now load our embedded config */ 2438 #ifdef EMBEDDED_CONFIG 2439 buflen = dhcp_readfile(ctx, EMBEDDED_CONFIG, buf, sizeof(buf)); 2440 if (buflen == -1) { 2441 logerr("%s: %s", __func__, EMBEDDED_CONFIG); 2442 return ifo; 2443 } 2444 if (buf[buflen - 1] != '\0') { 2445 if ((size_t)buflen < sizeof(buf) - 1) 2446 buflen++; 2447 buf[buflen - 1] = '\0'; 2448 } 2449 #else 2450 buflen = (ssize_t)strlcpy(buf, dhcpcd_embedded_conf, 2451 sizeof(buf)); 2452 if ((size_t)buflen >= sizeof(buf)) { 2453 logerrx("%s: embedded config too big", __func__); 2454 return ifo; 2455 } 2456 /* Our embedded config is NULL terminated */ 2457 #endif 2458 bp = buf; 2459 while ((line = get_line(&bp, &buflen)) != NULL) { 2460 option = strsep(&line, " \t"); 2461 if (line) 2462 line = strskipwhite(line); 2463 /* Trim trailing whitespace */ 2464 if (line) { 2465 p = line + strlen(line) - 1; 2466 while (p != line && 2467 (*p == ' ' || *p == '\t') && 2468 *(p - 1) != '\\') 2469 *p-- = '\0'; 2470 } 2471 parse_config_line(ctx, NULL, ifo, option, line, 2472 &ldop, &edop); 2473 } 2474 2475 #ifdef INET 2476 ctx->dhcp_opts = ifo->dhcp_override; 2477 ctx->dhcp_opts_len = ifo->dhcp_override_len; 2478 #else 2479 for (i = 0, opt = ifo->dhcp_override; 2480 i < ifo->dhcp_override_len; 2481 i++, opt++) 2482 free_dhcp_opt_embenc(opt); 2483 free(ifo->dhcp_override); 2484 #endif 2485 ifo->dhcp_override = NULL; 2486 ifo->dhcp_override_len = 0; 2487 2488 #ifdef INET6 2489 ctx->nd_opts = ifo->nd_override; 2490 ctx->nd_opts_len = ifo->nd_override_len; 2491 #ifdef DHCP6 2492 ctx->dhcp6_opts = ifo->dhcp6_override; 2493 ctx->dhcp6_opts_len = ifo->dhcp6_override_len; 2494 #endif 2495 #else 2496 for (i = 0, opt = ifo->nd_override; 2497 i < ifo->nd_override_len; 2498 i++, opt++) 2499 free_dhcp_opt_embenc(opt); 2500 free(ifo->nd_override); 2501 for (i = 0, opt = ifo->dhcp6_override; 2502 i < ifo->dhcp6_override_len; 2503 i++, opt++) 2504 free_dhcp_opt_embenc(opt); 2505 free(ifo->dhcp6_override); 2506 #endif 2507 ifo->nd_override = NULL; 2508 ifo->nd_override_len = 0; 2509 ifo->dhcp6_override = NULL; 2510 ifo->dhcp6_override_len = 0; 2511 2512 ctx->vivso = ifo->vivso_override; 2513 ctx->vivso_len = ifo->vivso_override_len; 2514 ifo->vivso_override = NULL; 2515 ifo->vivso_override_len = 0; 2516 } 2517 2518 /* Parse our options file */ 2519 buflen = dhcp_readfile(ctx, ctx->cffile, buf, sizeof(buf)); 2520 if (buflen == -1) { 2521 /* dhcpcd can continue without it, but no DNS options 2522 * would be requested ... */ 2523 logerr("%s: %s", __func__, ctx->cffile); 2524 return ifo; 2525 } 2526 if (buf[buflen - 1] != '\0') { 2527 if ((size_t)buflen < sizeof(buf) - 1) 2528 buflen++; 2529 buf[buflen - 1] = '\0'; 2530 } 2531 dhcp_filemtime(ctx, ctx->cffile, &ifo->mtime); 2532 2533 ldop = edop = NULL; 2534 skip = have_profile = new_block = 0; 2535 had_block = ifname == NULL ? 1 : 0; 2536 bp = buf; 2537 while ((line = get_line(&bp, &buflen)) != NULL) { 2538 option = strsep(&line, " \t"); 2539 if (line) 2540 line = strskipwhite(line); 2541 /* Trim trailing whitespace */ 2542 if (line) { 2543 p = line + strlen(line) - 1; 2544 while (p != line && 2545 (*p == ' ' || *p == '\t') && 2546 *(p - 1) != '\\') 2547 *p-- = '\0'; 2548 } 2549 if (skip == 0 && new_block) { 2550 had_block = 1; 2551 new_block = 0; 2552 ifo->options &= ~DHCPCD_WAITOPTS; 2553 SET_CONFIG_BLOCK(ifo); 2554 } 2555 2556 /* Start of an interface block, skip if not ours */ 2557 if (strcmp(option, "interface") == 0) { 2558 char **n; 2559 2560 new_block = 1; 2561 if (line == NULL) { 2562 /* No interface given */ 2563 skip = 1; 2564 continue; 2565 } 2566 if (ifname && strcmp(line, ifname) == 0) 2567 skip = 0; 2568 else 2569 skip = 1; 2570 if (ifname) 2571 continue; 2572 2573 n = reallocarray(ctx->ifcv, 2574 (size_t)ctx->ifcc + 1, sizeof(char *)); 2575 if (n == NULL) { 2576 logerr(__func__); 2577 continue; 2578 } 2579 ctx->ifcv = n; 2580 ctx->ifcv[ctx->ifcc] = strdup(line); 2581 if (ctx->ifcv[ctx->ifcc] == NULL) { 2582 logerr(__func__); 2583 continue; 2584 } 2585 ctx->ifcc++; 2586 continue; 2587 } 2588 /* Start of an ssid block, skip if not ours */ 2589 if (strcmp(option, "ssid") == 0) { 2590 new_block = 1; 2591 if (ssid && line && strcmp(line, ssid) == 0) 2592 skip = 0; 2593 else 2594 skip = 1; 2595 continue; 2596 } 2597 /* Start of a profile block, skip if not ours */ 2598 if (strcmp(option, "profile") == 0) { 2599 new_block = 1; 2600 if (profile && line && strcmp(line, profile) == 0) { 2601 skip = 0; 2602 have_profile = 1; 2603 } else 2604 skip = 1; 2605 continue; 2606 } 2607 /* Skip arping if we have selected a profile but not parsing 2608 * one. */ 2609 if (profile && !have_profile && strcmp(option, "arping") == 0) 2610 continue; 2611 if (skip) 2612 continue; 2613 2614 parse_config_line(ctx, ifname, ifo, option, line, &ldop, &edop); 2615 } 2616 2617 if (profile && !have_profile) { 2618 free_options(ctx, ifo); 2619 errno = ENOENT; 2620 return NULL; 2621 } 2622 2623 if (!had_block) 2624 ifo->options &= ~DHCPCD_WAITOPTS; 2625 CLEAR_CONFIG_BLOCK(ifo); 2626 finish_config(ifo); 2627 return ifo; 2628 } 2629 2630 int 2631 add_options(struct dhcpcd_ctx *ctx, const char *ifname, 2632 struct if_options *ifo, int argc, char **argv) 2633 { 2634 int oi, opt, r; 2635 unsigned long long wait_opts; 2636 2637 if (argc == 0) 2638 return 1; 2639 2640 optind = 0; 2641 r = 1; 2642 /* Don't apply the command line wait options to each interface, 2643 * only use the dhcpcd.conf entry for that. */ 2644 if (ifname != NULL) 2645 wait_opts = ifo->options & DHCPCD_WAITOPTS; 2646 while ((opt = getopt_long(argc, argv, 2647 ctx->options & DHCPCD_PRINT_PIDFILE ? NOERR_IF_OPTS : IF_OPTS, 2648 cf_options, &oi)) != -1) 2649 { 2650 r = parse_option(ctx, ifname, ifo, opt, optarg, NULL, NULL); 2651 if (r != 1) 2652 break; 2653 } 2654 if (ifname != NULL) { 2655 ifo->options &= ~DHCPCD_WAITOPTS; 2656 ifo->options |= wait_opts; 2657 } 2658 2659 finish_config(ifo); 2660 return r; 2661 } 2662 2663 void 2664 free_options(struct dhcpcd_ctx *ctx, struct if_options *ifo) 2665 { 2666 size_t i; 2667 #ifdef RT_FREE_ROUTE_TABLE 2668 struct interface *ifp; 2669 struct rt *rt; 2670 #endif 2671 struct dhcp_opt *opt; 2672 struct vivco *vo; 2673 #ifdef AUTH 2674 struct token *token; 2675 #endif 2676 2677 if (ifo == NULL) 2678 return; 2679 2680 if (ifo->environ) { 2681 i = 0; 2682 while (ifo->environ[i]) 2683 free(ifo->environ[i++]); 2684 free(ifo->environ); 2685 } 2686 if (ifo->config) { 2687 i = 0; 2688 while (ifo->config[i]) 2689 free(ifo->config[i++]); 2690 free(ifo->config); 2691 } 2692 2693 #ifdef RT_FREE_ROUTE_TABLE 2694 /* Stupidly, we don't know the interface when creating the options. 2695 * As such, make sure each route has one so they can goto the 2696 * free list. */ 2697 ifp = ctx->ifaces != NULL ? TAILQ_FIRST(ctx->ifaces) : NULL; 2698 if (ifp != NULL) { 2699 RB_TREE_FOREACH(rt, &ifo->routes) { 2700 if (rt->rt_ifp == NULL) 2701 rt->rt_ifp = ifp; 2702 } 2703 } 2704 #endif 2705 rt_headclear0(ctx, &ifo->routes, AF_UNSPEC); 2706 2707 free(ifo->arping); 2708 free(ifo->blacklist); 2709 free(ifo->fallback); 2710 2711 for (opt = ifo->dhcp_override; 2712 ifo->dhcp_override_len > 0; 2713 opt++, ifo->dhcp_override_len--) 2714 free_dhcp_opt_embenc(opt); 2715 free(ifo->dhcp_override); 2716 for (opt = ifo->nd_override; 2717 ifo->nd_override_len > 0; 2718 opt++, ifo->nd_override_len--) 2719 free_dhcp_opt_embenc(opt); 2720 free(ifo->nd_override); 2721 for (opt = ifo->dhcp6_override; 2722 ifo->dhcp6_override_len > 0; 2723 opt++, ifo->dhcp6_override_len--) 2724 free_dhcp_opt_embenc(opt); 2725 free(ifo->dhcp6_override); 2726 for (vo = ifo->vivco; 2727 ifo->vivco_len > 0; 2728 vo++, ifo->vivco_len--) 2729 free(vo->data); 2730 free(ifo->vivco); 2731 for (opt = ifo->vivso_override; 2732 ifo->vivso_override_len > 0; 2733 opt++, ifo->vivso_override_len--) 2734 free_dhcp_opt_embenc(opt); 2735 free(ifo->vivso_override); 2736 2737 #if defined(INET6) && !defined(SMALL) 2738 for (; ifo->ia_len > 0; ifo->ia_len--) 2739 free(ifo->ia[ifo->ia_len - 1].sla); 2740 #endif 2741 free(ifo->ia); 2742 2743 #ifdef AUTH 2744 while ((token = TAILQ_FIRST(&ifo->auth.tokens))) { 2745 TAILQ_REMOVE(&ifo->auth.tokens, token, next); 2746 if (token->realm_len) 2747 free(token->realm); 2748 free(token->key); 2749 free(token); 2750 } 2751 #endif 2752 free(ifo); 2753 } 2754