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