1 /* 2 * WPA Supplicant / Configuration parser and common functions 3 * Copyright (c) 2003-2012, Jouni Malinen <j (at) w1.fi> 4 * 5 * This software may be distributed under the terms of the BSD license. 6 * See README for more details. 7 */ 8 9 #include "includes.h" 10 11 #include "common.h" 12 #include "utils/uuid.h" 13 #include "crypto/sha1.h" 14 #include "rsn_supp/wpa.h" 15 #include "eap_peer/eap.h" 16 #include "p2p/p2p.h" 17 #include "config.h" 18 19 20 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE) 21 #define NO_CONFIG_WRITE 22 #endif 23 24 /* 25 * Structure for network configuration parsing. This data is used to implement 26 * a generic parser for each network block variable. The table of configuration 27 * variables is defined below in this file (ssid_fields[]). 28 */ 29 struct parse_data { 30 /* Configuration variable name */ 31 char *name; 32 33 /* Parser function for this variable */ 34 int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid, 35 int line, const char *value); 36 37 #ifndef NO_CONFIG_WRITE 38 /* Writer function (i.e., to get the variable in text format from 39 * internal presentation). */ 40 char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid); 41 #endif /* NO_CONFIG_WRITE */ 42 43 /* Variable specific parameters for the parser. */ 44 void *param1, *param2, *param3, *param4; 45 46 /* 0 = this variable can be included in debug output and ctrl_iface 47 * 1 = this variable contains key/private data and it must not be 48 * included in debug output unless explicitly requested. In 49 * addition, this variable will not be readable through the 50 * ctrl_iface. 51 */ 52 int key_data; 53 }; 54 55 56 static int wpa_config_parse_str(const struct parse_data *data, 57 struct wpa_ssid *ssid, 58 int line, const char *value) 59 { 60 size_t res_len, *dst_len; 61 char **dst, *tmp; 62 63 if (os_strcmp(value, "NULL") == 0) { 64 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'", 65 data->name); 66 tmp = NULL; 67 res_len = 0; 68 goto set; 69 } 70 71 tmp = wpa_config_parse_string(value, &res_len); 72 if (tmp == NULL) { 73 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.", 74 line, data->name, 75 data->key_data ? "[KEY DATA REMOVED]" : value); 76 return -1; 77 } 78 79 if (data->key_data) { 80 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name, 81 (u8 *) tmp, res_len); 82 } else { 83 wpa_hexdump_ascii(MSG_MSGDUMP, data->name, 84 (u8 *) tmp, res_len); 85 } 86 87 if (data->param3 && res_len < (size_t) data->param3) { 88 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu " 89 "min_len=%ld)", line, data->name, 90 (unsigned long) res_len, (long) data->param3); 91 os_free(tmp); 92 return -1; 93 } 94 95 if (data->param4 && res_len > (size_t) data->param4) { 96 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu " 97 "max_len=%ld)", line, data->name, 98 (unsigned long) res_len, (long) data->param4); 99 os_free(tmp); 100 return -1; 101 } 102 103 set: 104 dst = (char **) (((u8 *) ssid) + (long) data->param1); 105 dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2); 106 os_free(*dst); 107 *dst = tmp; 108 if (data->param2) 109 *dst_len = res_len; 110 111 return 0; 112 } 113 114 115 #ifndef NO_CONFIG_WRITE 116 static char * wpa_config_write_string_ascii(const u8 *value, size_t len) 117 { 118 char *buf; 119 120 buf = os_malloc(len + 3); 121 if (buf == NULL) 122 return NULL; 123 buf[0] = '"'; 124 os_memcpy(buf + 1, value, len); 125 buf[len + 1] = '"'; 126 buf[len + 2] = '\0'; 127 128 return buf; 129 } 130 131 132 static char * wpa_config_write_string_hex(const u8 *value, size_t len) 133 { 134 char *buf; 135 136 buf = os_zalloc(2 * len + 1); 137 if (buf == NULL) 138 return NULL; 139 wpa_snprintf_hex(buf, 2 * len + 1, value, len); 140 141 return buf; 142 } 143 144 145 static char * wpa_config_write_string(const u8 *value, size_t len) 146 { 147 if (value == NULL) 148 return NULL; 149 150 if (is_hex(value, len)) 151 return wpa_config_write_string_hex(value, len); 152 else 153 return wpa_config_write_string_ascii(value, len); 154 } 155 156 157 static char * wpa_config_write_str(const struct parse_data *data, 158 struct wpa_ssid *ssid) 159 { 160 size_t len; 161 char **src; 162 163 src = (char **) (((u8 *) ssid) + (long) data->param1); 164 if (*src == NULL) 165 return NULL; 166 167 if (data->param2) 168 len = *((size_t *) (((u8 *) ssid) + (long) data->param2)); 169 else 170 len = os_strlen(*src); 171 172 return wpa_config_write_string((const u8 *) *src, len); 173 } 174 #endif /* NO_CONFIG_WRITE */ 175 176 177 static int wpa_config_parse_int(const struct parse_data *data, 178 struct wpa_ssid *ssid, 179 int line, const char *value) 180 { 181 int val, *dst; 182 char *end; 183 184 dst = (int *) (((u8 *) ssid) + (long) data->param1); 185 val = strtol(value, &end, 0); 186 if (*end) { 187 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"", 188 line, value); 189 return -1; 190 } 191 *dst = val; 192 wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst); 193 194 if (data->param3 && *dst < (long) data->param3) { 195 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d " 196 "min_value=%ld)", line, data->name, *dst, 197 (long) data->param3); 198 *dst = (long) data->param3; 199 return -1; 200 } 201 202 if (data->param4 && *dst > (long) data->param4) { 203 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d " 204 "max_value=%ld)", line, data->name, *dst, 205 (long) data->param4); 206 *dst = (long) data->param4; 207 return -1; 208 } 209 210 return 0; 211 } 212 213 214 #ifndef NO_CONFIG_WRITE 215 static char * wpa_config_write_int(const struct parse_data *data, 216 struct wpa_ssid *ssid) 217 { 218 int *src, res; 219 char *value; 220 221 src = (int *) (((u8 *) ssid) + (long) data->param1); 222 223 value = os_malloc(20); 224 if (value == NULL) 225 return NULL; 226 res = os_snprintf(value, 20, "%d", *src); 227 if (res < 0 || res >= 20) { 228 os_free(value); 229 return NULL; 230 } 231 value[20 - 1] = '\0'; 232 return value; 233 } 234 #endif /* NO_CONFIG_WRITE */ 235 236 237 static int wpa_config_parse_bssid(const struct parse_data *data, 238 struct wpa_ssid *ssid, int line, 239 const char *value) 240 { 241 if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 || 242 os_strcmp(value, "any") == 0) { 243 ssid->bssid_set = 0; 244 wpa_printf(MSG_MSGDUMP, "BSSID any"); 245 return 0; 246 } 247 if (hwaddr_aton(value, ssid->bssid)) { 248 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.", 249 line, value); 250 return -1; 251 } 252 ssid->bssid_set = 1; 253 wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN); 254 return 0; 255 } 256 257 258 #ifndef NO_CONFIG_WRITE 259 static char * wpa_config_write_bssid(const struct parse_data *data, 260 struct wpa_ssid *ssid) 261 { 262 char *value; 263 int res; 264 265 if (!ssid->bssid_set) 266 return NULL; 267 268 value = os_malloc(20); 269 if (value == NULL) 270 return NULL; 271 res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid)); 272 if (res < 0 || res >= 20) { 273 os_free(value); 274 return NULL; 275 } 276 value[20 - 1] = '\0'; 277 return value; 278 } 279 #endif /* NO_CONFIG_WRITE */ 280 281 282 static int wpa_config_parse_psk(const struct parse_data *data, 283 struct wpa_ssid *ssid, int line, 284 const char *value) 285 { 286 #ifdef CONFIG_EXT_PASSWORD 287 if (os_strncmp(value, "ext:", 4) == 0) { 288 os_free(ssid->passphrase); 289 ssid->passphrase = NULL; 290 ssid->psk_set = 0; 291 os_free(ssid->ext_psk); 292 ssid->ext_psk = os_strdup(value + 4); 293 if (ssid->ext_psk == NULL) 294 return -1; 295 wpa_printf(MSG_DEBUG, "PSK: External password '%s'", 296 ssid->ext_psk); 297 return 0; 298 } 299 #endif /* CONFIG_EXT_PASSWORD */ 300 301 if (*value == '"') { 302 #ifndef CONFIG_NO_PBKDF2 303 const char *pos; 304 size_t len; 305 306 value++; 307 pos = os_strrchr(value, '"'); 308 if (pos) 309 len = pos - value; 310 else 311 len = os_strlen(value); 312 if (len < 8 || len > 63) { 313 wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase " 314 "length %lu (expected: 8..63) '%s'.", 315 line, (unsigned long) len, value); 316 return -1; 317 } 318 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)", 319 (u8 *) value, len); 320 if (ssid->passphrase && os_strlen(ssid->passphrase) == len && 321 os_memcmp(ssid->passphrase, value, len) == 0) 322 return 0; 323 ssid->psk_set = 0; 324 os_free(ssid->passphrase); 325 ssid->passphrase = dup_binstr(value, len); 326 if (ssid->passphrase == NULL) 327 return -1; 328 return 0; 329 #else /* CONFIG_NO_PBKDF2 */ 330 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not " 331 "supported.", line); 332 return -1; 333 #endif /* CONFIG_NO_PBKDF2 */ 334 } 335 336 if (hexstr2bin(value, ssid->psk, PMK_LEN) || 337 value[PMK_LEN * 2] != '\0') { 338 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.", 339 line, value); 340 return -1; 341 } 342 343 os_free(ssid->passphrase); 344 ssid->passphrase = NULL; 345 346 ssid->psk_set = 1; 347 wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN); 348 return 0; 349 } 350 351 352 #ifndef NO_CONFIG_WRITE 353 static char * wpa_config_write_psk(const struct parse_data *data, 354 struct wpa_ssid *ssid) 355 { 356 #ifdef CONFIG_EXT_PASSWORD 357 if (ssid->ext_psk) { 358 size_t len = 4 + os_strlen(ssid->ext_psk) + 1; 359 char *buf = os_malloc(len); 360 if (buf == NULL) 361 return NULL; 362 os_snprintf(buf, len, "ext:%s", ssid->ext_psk); 363 return buf; 364 } 365 #endif /* CONFIG_EXT_PASSWORD */ 366 367 if (ssid->passphrase) 368 return wpa_config_write_string_ascii( 369 (const u8 *) ssid->passphrase, 370 os_strlen(ssid->passphrase)); 371 372 if (ssid->psk_set) 373 return wpa_config_write_string_hex(ssid->psk, PMK_LEN); 374 375 return NULL; 376 } 377 #endif /* NO_CONFIG_WRITE */ 378 379 380 static int wpa_config_parse_proto(const struct parse_data *data, 381 struct wpa_ssid *ssid, int line, 382 const char *value) 383 { 384 int val = 0, last, errors = 0; 385 char *start, *end, *buf; 386 387 buf = os_strdup(value); 388 if (buf == NULL) 389 return -1; 390 start = buf; 391 392 while (*start != '\0') { 393 while (*start == ' ' || *start == '\t') 394 start++; 395 if (*start == '\0') 396 break; 397 end = start; 398 while (*end != ' ' && *end != '\t' && *end != '\0') 399 end++; 400 last = *end == '\0'; 401 *end = '\0'; 402 if (os_strcmp(start, "WPA") == 0) 403 val |= WPA_PROTO_WPA; 404 else if (os_strcmp(start, "RSN") == 0 || 405 os_strcmp(start, "WPA2") == 0) 406 val |= WPA_PROTO_RSN; 407 else { 408 wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'", 409 line, start); 410 errors++; 411 } 412 413 if (last) 414 break; 415 start = end + 1; 416 } 417 os_free(buf); 418 419 if (val == 0) { 420 wpa_printf(MSG_ERROR, 421 "Line %d: no proto values configured.", line); 422 errors++; 423 } 424 425 wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val); 426 ssid->proto = val; 427 return errors ? -1 : 0; 428 } 429 430 431 #ifndef NO_CONFIG_WRITE 432 static char * wpa_config_write_proto(const struct parse_data *data, 433 struct wpa_ssid *ssid) 434 { 435 int first = 1, ret; 436 char *buf, *pos, *end; 437 438 pos = buf = os_zalloc(10); 439 if (buf == NULL) 440 return NULL; 441 end = buf + 10; 442 443 if (ssid->proto & WPA_PROTO_WPA) { 444 ret = os_snprintf(pos, end - pos, "%sWPA", first ? "" : " "); 445 if (ret < 0 || ret >= end - pos) 446 return buf; 447 pos += ret; 448 first = 0; 449 } 450 451 if (ssid->proto & WPA_PROTO_RSN) { 452 ret = os_snprintf(pos, end - pos, "%sRSN", first ? "" : " "); 453 if (ret < 0 || ret >= end - pos) 454 return buf; 455 pos += ret; 456 first = 0; 457 } 458 459 return buf; 460 } 461 #endif /* NO_CONFIG_WRITE */ 462 463 464 static int wpa_config_parse_key_mgmt(const struct parse_data *data, 465 struct wpa_ssid *ssid, int line, 466 const char *value) 467 { 468 int val = 0, last, errors = 0; 469 char *start, *end, *buf; 470 471 buf = os_strdup(value); 472 if (buf == NULL) 473 return -1; 474 start = buf; 475 476 while (*start != '\0') { 477 while (*start == ' ' || *start == '\t') 478 start++; 479 if (*start == '\0') 480 break; 481 end = start; 482 while (*end != ' ' && *end != '\t' && *end != '\0') 483 end++; 484 last = *end == '\0'; 485 *end = '\0'; 486 if (os_strcmp(start, "WPA-PSK") == 0) 487 val |= WPA_KEY_MGMT_PSK; 488 else if (os_strcmp(start, "WPA-EAP") == 0) 489 val |= WPA_KEY_MGMT_IEEE8021X; 490 else if (os_strcmp(start, "IEEE8021X") == 0) 491 val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA; 492 else if (os_strcmp(start, "NONE") == 0) 493 val |= WPA_KEY_MGMT_NONE; 494 else if (os_strcmp(start, "WPA-NONE") == 0) 495 val |= WPA_KEY_MGMT_WPA_NONE; 496 #ifdef CONFIG_IEEE80211R 497 else if (os_strcmp(start, "FT-PSK") == 0) 498 val |= WPA_KEY_MGMT_FT_PSK; 499 else if (os_strcmp(start, "FT-EAP") == 0) 500 val |= WPA_KEY_MGMT_FT_IEEE8021X; 501 #endif /* CONFIG_IEEE80211R */ 502 #ifdef CONFIG_IEEE80211W 503 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0) 504 val |= WPA_KEY_MGMT_PSK_SHA256; 505 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0) 506 val |= WPA_KEY_MGMT_IEEE8021X_SHA256; 507 #endif /* CONFIG_IEEE80211W */ 508 #ifdef CONFIG_WPS 509 else if (os_strcmp(start, "WPS") == 0) 510 val |= WPA_KEY_MGMT_WPS; 511 #endif /* CONFIG_WPS */ 512 #ifdef CONFIG_SAE 513 else if (os_strcmp(start, "SAE") == 0) 514 val |= WPA_KEY_MGMT_SAE; 515 else if (os_strcmp(start, "FT-SAE") == 0) 516 val |= WPA_KEY_MGMT_FT_SAE; 517 #endif /* CONFIG_SAE */ 518 else { 519 wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'", 520 line, start); 521 errors++; 522 } 523 524 if (last) 525 break; 526 start = end + 1; 527 } 528 os_free(buf); 529 530 if (val == 0) { 531 wpa_printf(MSG_ERROR, 532 "Line %d: no key_mgmt values configured.", line); 533 errors++; 534 } 535 536 wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val); 537 ssid->key_mgmt = val; 538 return errors ? -1 : 0; 539 } 540 541 542 #ifndef NO_CONFIG_WRITE 543 static char * wpa_config_write_key_mgmt(const struct parse_data *data, 544 struct wpa_ssid *ssid) 545 { 546 char *buf, *pos, *end; 547 int ret; 548 549 pos = buf = os_zalloc(50); 550 if (buf == NULL) 551 return NULL; 552 end = buf + 50; 553 554 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) { 555 ret = os_snprintf(pos, end - pos, "%sWPA-PSK", 556 pos == buf ? "" : " "); 557 if (ret < 0 || ret >= end - pos) { 558 end[-1] = '\0'; 559 return buf; 560 } 561 pos += ret; 562 } 563 564 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) { 565 ret = os_snprintf(pos, end - pos, "%sWPA-EAP", 566 pos == buf ? "" : " "); 567 if (ret < 0 || ret >= end - pos) { 568 end[-1] = '\0'; 569 return buf; 570 } 571 pos += ret; 572 } 573 574 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) { 575 ret = os_snprintf(pos, end - pos, "%sIEEE8021X", 576 pos == buf ? "" : " "); 577 if (ret < 0 || ret >= end - pos) { 578 end[-1] = '\0'; 579 return buf; 580 } 581 pos += ret; 582 } 583 584 if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) { 585 ret = os_snprintf(pos, end - pos, "%sNONE", 586 pos == buf ? "" : " "); 587 if (ret < 0 || ret >= end - pos) { 588 end[-1] = '\0'; 589 return buf; 590 } 591 pos += ret; 592 } 593 594 if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) { 595 ret = os_snprintf(pos, end - pos, "%sWPA-NONE", 596 pos == buf ? "" : " "); 597 if (ret < 0 || ret >= end - pos) { 598 end[-1] = '\0'; 599 return buf; 600 } 601 pos += ret; 602 } 603 604 #ifdef CONFIG_IEEE80211R 605 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) 606 pos += os_snprintf(pos, end - pos, "%sFT-PSK", 607 pos == buf ? "" : " "); 608 609 if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) 610 pos += os_snprintf(pos, end - pos, "%sFT-EAP", 611 pos == buf ? "" : " "); 612 #endif /* CONFIG_IEEE80211R */ 613 614 #ifdef CONFIG_IEEE80211W 615 if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) 616 pos += os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256", 617 pos == buf ? "" : " "); 618 619 if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) 620 pos += os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256", 621 pos == buf ? "" : " "); 622 #endif /* CONFIG_IEEE80211W */ 623 624 #ifdef CONFIG_WPS 625 if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) 626 pos += os_snprintf(pos, end - pos, "%sWPS", 627 pos == buf ? "" : " "); 628 #endif /* CONFIG_WPS */ 629 630 return buf; 631 } 632 #endif /* NO_CONFIG_WRITE */ 633 634 635 static int wpa_config_parse_cipher(int line, const char *value) 636 { 637 int val = wpa_parse_cipher(value); 638 if (val < 0) { 639 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.", 640 line, value); 641 return -1; 642 } 643 if (val == 0) { 644 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.", 645 line); 646 return -1; 647 } 648 return val; 649 } 650 651 652 #ifndef NO_CONFIG_WRITE 653 static char * wpa_config_write_cipher(int cipher) 654 { 655 char *buf = os_zalloc(50); 656 if (buf == NULL) 657 return NULL; 658 659 if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) { 660 os_free(buf); 661 return NULL; 662 } 663 664 return buf; 665 } 666 #endif /* NO_CONFIG_WRITE */ 667 668 669 static int wpa_config_parse_pairwise(const struct parse_data *data, 670 struct wpa_ssid *ssid, int line, 671 const char *value) 672 { 673 int val; 674 val = wpa_config_parse_cipher(line, value); 675 if (val == -1) 676 return -1; 677 if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) { 678 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher " 679 "(0x%x).", line, val); 680 return -1; 681 } 682 683 wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val); 684 ssid->pairwise_cipher = val; 685 return 0; 686 } 687 688 689 #ifndef NO_CONFIG_WRITE 690 static char * wpa_config_write_pairwise(const struct parse_data *data, 691 struct wpa_ssid *ssid) 692 { 693 return wpa_config_write_cipher(ssid->pairwise_cipher); 694 } 695 #endif /* NO_CONFIG_WRITE */ 696 697 698 static int wpa_config_parse_group(const struct parse_data *data, 699 struct wpa_ssid *ssid, int line, 700 const char *value) 701 { 702 int val; 703 val = wpa_config_parse_cipher(line, value); 704 if (val == -1) 705 return -1; 706 if (val & ~WPA_ALLOWED_GROUP_CIPHERS) { 707 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher " 708 "(0x%x).", line, val); 709 return -1; 710 } 711 712 wpa_printf(MSG_MSGDUMP, "group: 0x%x", val); 713 ssid->group_cipher = val; 714 return 0; 715 } 716 717 718 #ifndef NO_CONFIG_WRITE 719 static char * wpa_config_write_group(const struct parse_data *data, 720 struct wpa_ssid *ssid) 721 { 722 return wpa_config_write_cipher(ssid->group_cipher); 723 } 724 #endif /* NO_CONFIG_WRITE */ 725 726 727 static int wpa_config_parse_auth_alg(const struct parse_data *data, 728 struct wpa_ssid *ssid, int line, 729 const char *value) 730 { 731 int val = 0, last, errors = 0; 732 char *start, *end, *buf; 733 734 buf = os_strdup(value); 735 if (buf == NULL) 736 return -1; 737 start = buf; 738 739 while (*start != '\0') { 740 while (*start == ' ' || *start == '\t') 741 start++; 742 if (*start == '\0') 743 break; 744 end = start; 745 while (*end != ' ' && *end != '\t' && *end != '\0') 746 end++; 747 last = *end == '\0'; 748 *end = '\0'; 749 if (os_strcmp(start, "OPEN") == 0) 750 val |= WPA_AUTH_ALG_OPEN; 751 else if (os_strcmp(start, "SHARED") == 0) 752 val |= WPA_AUTH_ALG_SHARED; 753 else if (os_strcmp(start, "LEAP") == 0) 754 val |= WPA_AUTH_ALG_LEAP; 755 else { 756 wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'", 757 line, start); 758 errors++; 759 } 760 761 if (last) 762 break; 763 start = end + 1; 764 } 765 os_free(buf); 766 767 if (val == 0) { 768 wpa_printf(MSG_ERROR, 769 "Line %d: no auth_alg values configured.", line); 770 errors++; 771 } 772 773 wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val); 774 ssid->auth_alg = val; 775 return errors ? -1 : 0; 776 } 777 778 779 #ifndef NO_CONFIG_WRITE 780 static char * wpa_config_write_auth_alg(const struct parse_data *data, 781 struct wpa_ssid *ssid) 782 { 783 char *buf, *pos, *end; 784 int ret; 785 786 pos = buf = os_zalloc(30); 787 if (buf == NULL) 788 return NULL; 789 end = buf + 30; 790 791 if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) { 792 ret = os_snprintf(pos, end - pos, "%sOPEN", 793 pos == buf ? "" : " "); 794 if (ret < 0 || ret >= end - pos) { 795 end[-1] = '\0'; 796 return buf; 797 } 798 pos += ret; 799 } 800 801 if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) { 802 ret = os_snprintf(pos, end - pos, "%sSHARED", 803 pos == buf ? "" : " "); 804 if (ret < 0 || ret >= end - pos) { 805 end[-1] = '\0'; 806 return buf; 807 } 808 pos += ret; 809 } 810 811 if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) { 812 ret = os_snprintf(pos, end - pos, "%sLEAP", 813 pos == buf ? "" : " "); 814 if (ret < 0 || ret >= end - pos) { 815 end[-1] = '\0'; 816 return buf; 817 } 818 pos += ret; 819 } 820 821 return buf; 822 } 823 #endif /* NO_CONFIG_WRITE */ 824 825 826 static int * wpa_config_parse_int_array(const char *value) 827 { 828 int *freqs; 829 size_t used, len; 830 const char *pos; 831 832 used = 0; 833 len = 10; 834 freqs = os_calloc(len + 1, sizeof(int)); 835 if (freqs == NULL) 836 return NULL; 837 838 pos = value; 839 while (pos) { 840 while (*pos == ' ') 841 pos++; 842 if (used == len) { 843 int *n; 844 size_t i; 845 n = os_realloc_array(freqs, len * 2 + 1, sizeof(int)); 846 if (n == NULL) { 847 os_free(freqs); 848 return NULL; 849 } 850 for (i = len; i <= len * 2; i++) 851 n[i] = 0; 852 freqs = n; 853 len *= 2; 854 } 855 856 freqs[used] = atoi(pos); 857 if (freqs[used] == 0) 858 break; 859 used++; 860 pos = os_strchr(pos + 1, ' '); 861 } 862 863 return freqs; 864 } 865 866 867 static int wpa_config_parse_scan_freq(const struct parse_data *data, 868 struct wpa_ssid *ssid, int line, 869 const char *value) 870 { 871 int *freqs; 872 873 freqs = wpa_config_parse_int_array(value); 874 if (freqs == NULL) 875 return -1; 876 os_free(ssid->scan_freq); 877 ssid->scan_freq = freqs; 878 879 return 0; 880 } 881 882 883 static int wpa_config_parse_freq_list(const struct parse_data *data, 884 struct wpa_ssid *ssid, int line, 885 const char *value) 886 { 887 int *freqs; 888 889 freqs = wpa_config_parse_int_array(value); 890 if (freqs == NULL) 891 return -1; 892 os_free(ssid->freq_list); 893 ssid->freq_list = freqs; 894 895 return 0; 896 } 897 898 899 #ifndef NO_CONFIG_WRITE 900 static char * wpa_config_write_freqs(const struct parse_data *data, 901 const int *freqs) 902 { 903 char *buf, *pos, *end; 904 int i, ret; 905 size_t count; 906 907 if (freqs == NULL) 908 return NULL; 909 910 count = 0; 911 for (i = 0; freqs[i]; i++) 912 count++; 913 914 pos = buf = os_zalloc(10 * count + 1); 915 if (buf == NULL) 916 return NULL; 917 end = buf + 10 * count + 1; 918 919 for (i = 0; freqs[i]; i++) { 920 ret = os_snprintf(pos, end - pos, "%s%u", 921 i == 0 ? "" : " ", freqs[i]); 922 if (ret < 0 || ret >= end - pos) { 923 end[-1] = '\0'; 924 return buf; 925 } 926 pos += ret; 927 } 928 929 return buf; 930 } 931 932 933 static char * wpa_config_write_scan_freq(const struct parse_data *data, 934 struct wpa_ssid *ssid) 935 { 936 return wpa_config_write_freqs(data, ssid->scan_freq); 937 } 938 939 940 static char * wpa_config_write_freq_list(const struct parse_data *data, 941 struct wpa_ssid *ssid) 942 { 943 return wpa_config_write_freqs(data, ssid->freq_list); 944 } 945 #endif /* NO_CONFIG_WRITE */ 946 947 948 #ifdef IEEE8021X_EAPOL 949 static int wpa_config_parse_eap(const struct parse_data *data, 950 struct wpa_ssid *ssid, int line, 951 const char *value) 952 { 953 int last, errors = 0; 954 char *start, *end, *buf; 955 struct eap_method_type *methods = NULL, *tmp; 956 size_t num_methods = 0; 957 958 buf = os_strdup(value); 959 if (buf == NULL) 960 return -1; 961 start = buf; 962 963 while (*start != '\0') { 964 while (*start == ' ' || *start == '\t') 965 start++; 966 if (*start == '\0') 967 break; 968 end = start; 969 while (*end != ' ' && *end != '\t' && *end != '\0') 970 end++; 971 last = *end == '\0'; 972 *end = '\0'; 973 tmp = methods; 974 methods = os_realloc_array(methods, num_methods + 1, 975 sizeof(*methods)); 976 if (methods == NULL) { 977 os_free(tmp); 978 os_free(buf); 979 return -1; 980 } 981 methods[num_methods].method = eap_peer_get_type( 982 start, &methods[num_methods].vendor); 983 if (methods[num_methods].vendor == EAP_VENDOR_IETF && 984 methods[num_methods].method == EAP_TYPE_NONE) { 985 wpa_printf(MSG_ERROR, "Line %d: unknown EAP method " 986 "'%s'", line, start); 987 wpa_printf(MSG_ERROR, "You may need to add support for" 988 " this EAP method during wpa_supplicant\n" 989 "build time configuration.\n" 990 "See README for more information."); 991 errors++; 992 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF && 993 methods[num_methods].method == EAP_TYPE_LEAP) 994 ssid->leap++; 995 else 996 ssid->non_leap++; 997 num_methods++; 998 if (last) 999 break; 1000 start = end + 1; 1001 } 1002 os_free(buf); 1003 1004 tmp = methods; 1005 methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods)); 1006 if (methods == NULL) { 1007 os_free(tmp); 1008 return -1; 1009 } 1010 methods[num_methods].vendor = EAP_VENDOR_IETF; 1011 methods[num_methods].method = EAP_TYPE_NONE; 1012 num_methods++; 1013 1014 wpa_hexdump(MSG_MSGDUMP, "eap methods", 1015 (u8 *) methods, num_methods * sizeof(*methods)); 1016 os_free(ssid->eap.eap_methods); 1017 ssid->eap.eap_methods = methods; 1018 return errors ? -1 : 0; 1019 } 1020 1021 1022 static char * wpa_config_write_eap(const struct parse_data *data, 1023 struct wpa_ssid *ssid) 1024 { 1025 int i, ret; 1026 char *buf, *pos, *end; 1027 const struct eap_method_type *eap_methods = ssid->eap.eap_methods; 1028 const char *name; 1029 1030 if (eap_methods == NULL) 1031 return NULL; 1032 1033 pos = buf = os_zalloc(100); 1034 if (buf == NULL) 1035 return NULL; 1036 end = buf + 100; 1037 1038 for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF || 1039 eap_methods[i].method != EAP_TYPE_NONE; i++) { 1040 name = eap_get_name(eap_methods[i].vendor, 1041 eap_methods[i].method); 1042 if (name) { 1043 ret = os_snprintf(pos, end - pos, "%s%s", 1044 pos == buf ? "" : " ", name); 1045 if (ret < 0 || ret >= end - pos) 1046 break; 1047 pos += ret; 1048 } 1049 } 1050 1051 end[-1] = '\0'; 1052 1053 return buf; 1054 } 1055 1056 1057 static int wpa_config_parse_password(const struct parse_data *data, 1058 struct wpa_ssid *ssid, int line, 1059 const char *value) 1060 { 1061 u8 *hash; 1062 1063 if (os_strcmp(value, "NULL") == 0) { 1064 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'"); 1065 os_free(ssid->eap.password); 1066 ssid->eap.password = NULL; 1067 ssid->eap.password_len = 0; 1068 return 0; 1069 } 1070 1071 #ifdef CONFIG_EXT_PASSWORD 1072 if (os_strncmp(value, "ext:", 4) == 0) { 1073 char *name = os_strdup(value + 4); 1074 if (name == NULL) 1075 return -1; 1076 os_free(ssid->eap.password); 1077 ssid->eap.password = (u8 *) name; 1078 ssid->eap.password_len = os_strlen(name); 1079 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH; 1080 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD; 1081 return 0; 1082 } 1083 #endif /* CONFIG_EXT_PASSWORD */ 1084 1085 if (os_strncmp(value, "hash:", 5) != 0) { 1086 char *tmp; 1087 size_t res_len; 1088 1089 tmp = wpa_config_parse_string(value, &res_len); 1090 if (tmp == NULL) { 1091 wpa_printf(MSG_ERROR, "Line %d: failed to parse " 1092 "password.", line); 1093 return -1; 1094 } 1095 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name, 1096 (u8 *) tmp, res_len); 1097 1098 os_free(ssid->eap.password); 1099 ssid->eap.password = (u8 *) tmp; 1100 ssid->eap.password_len = res_len; 1101 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH; 1102 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD; 1103 1104 return 0; 1105 } 1106 1107 1108 /* NtPasswordHash: hash:<32 hex digits> */ 1109 if (os_strlen(value + 5) != 2 * 16) { 1110 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length " 1111 "(expected 32 hex digits)", line); 1112 return -1; 1113 } 1114 1115 hash = os_malloc(16); 1116 if (hash == NULL) 1117 return -1; 1118 1119 if (hexstr2bin(value + 5, hash, 16)) { 1120 os_free(hash); 1121 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line); 1122 return -1; 1123 } 1124 1125 wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16); 1126 1127 os_free(ssid->eap.password); 1128 ssid->eap.password = hash; 1129 ssid->eap.password_len = 16; 1130 ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH; 1131 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD; 1132 1133 return 0; 1134 } 1135 1136 1137 static char * wpa_config_write_password(const struct parse_data *data, 1138 struct wpa_ssid *ssid) 1139 { 1140 char *buf; 1141 1142 if (ssid->eap.password == NULL) 1143 return NULL; 1144 1145 #ifdef CONFIG_EXT_PASSWORD 1146 if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) { 1147 buf = os_zalloc(4 + ssid->eap.password_len + 1); 1148 if (buf == NULL) 1149 return NULL; 1150 os_memcpy(buf, "ext:", 4); 1151 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len); 1152 return buf; 1153 } 1154 #endif /* CONFIG_EXT_PASSWORD */ 1155 1156 if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) { 1157 return wpa_config_write_string( 1158 ssid->eap.password, ssid->eap.password_len); 1159 } 1160 1161 buf = os_malloc(5 + 32 + 1); 1162 if (buf == NULL) 1163 return NULL; 1164 1165 os_memcpy(buf, "hash:", 5); 1166 wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16); 1167 1168 return buf; 1169 } 1170 #endif /* IEEE8021X_EAPOL */ 1171 1172 1173 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line, 1174 const char *value, int idx) 1175 { 1176 char *buf, title[20]; 1177 int res; 1178 1179 buf = wpa_config_parse_string(value, len); 1180 if (buf == NULL) { 1181 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.", 1182 line, idx, value); 1183 return -1; 1184 } 1185 if (*len > MAX_WEP_KEY_LEN) { 1186 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.", 1187 line, idx, value); 1188 os_free(buf); 1189 return -1; 1190 } 1191 if (*len && *len != 5 && *len != 13 && *len != 16) { 1192 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - " 1193 "this network block will be ignored", 1194 line, (unsigned int) *len); 1195 } 1196 os_memcpy(key, buf, *len); 1197 os_free(buf); 1198 res = os_snprintf(title, sizeof(title), "wep_key%d", idx); 1199 if (res >= 0 && (size_t) res < sizeof(title)) 1200 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len); 1201 return 0; 1202 } 1203 1204 1205 static int wpa_config_parse_wep_key0(const struct parse_data *data, 1206 struct wpa_ssid *ssid, int line, 1207 const char *value) 1208 { 1209 return wpa_config_parse_wep_key(ssid->wep_key[0], 1210 &ssid->wep_key_len[0], line, 1211 value, 0); 1212 } 1213 1214 1215 static int wpa_config_parse_wep_key1(const struct parse_data *data, 1216 struct wpa_ssid *ssid, int line, 1217 const char *value) 1218 { 1219 return wpa_config_parse_wep_key(ssid->wep_key[1], 1220 &ssid->wep_key_len[1], line, 1221 value, 1); 1222 } 1223 1224 1225 static int wpa_config_parse_wep_key2(const struct parse_data *data, 1226 struct wpa_ssid *ssid, int line, 1227 const char *value) 1228 { 1229 return wpa_config_parse_wep_key(ssid->wep_key[2], 1230 &ssid->wep_key_len[2], line, 1231 value, 2); 1232 } 1233 1234 1235 static int wpa_config_parse_wep_key3(const struct parse_data *data, 1236 struct wpa_ssid *ssid, int line, 1237 const char *value) 1238 { 1239 return wpa_config_parse_wep_key(ssid->wep_key[3], 1240 &ssid->wep_key_len[3], line, 1241 value, 3); 1242 } 1243 1244 1245 #ifndef NO_CONFIG_WRITE 1246 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx) 1247 { 1248 if (ssid->wep_key_len[idx] == 0) 1249 return NULL; 1250 return wpa_config_write_string(ssid->wep_key[idx], 1251 ssid->wep_key_len[idx]); 1252 } 1253 1254 1255 static char * wpa_config_write_wep_key0(const struct parse_data *data, 1256 struct wpa_ssid *ssid) 1257 { 1258 return wpa_config_write_wep_key(ssid, 0); 1259 } 1260 1261 1262 static char * wpa_config_write_wep_key1(const struct parse_data *data, 1263 struct wpa_ssid *ssid) 1264 { 1265 return wpa_config_write_wep_key(ssid, 1); 1266 } 1267 1268 1269 static char * wpa_config_write_wep_key2(const struct parse_data *data, 1270 struct wpa_ssid *ssid) 1271 { 1272 return wpa_config_write_wep_key(ssid, 2); 1273 } 1274 1275 1276 static char * wpa_config_write_wep_key3(const struct parse_data *data, 1277 struct wpa_ssid *ssid) 1278 { 1279 return wpa_config_write_wep_key(ssid, 3); 1280 } 1281 #endif /* NO_CONFIG_WRITE */ 1282 1283 1284 #ifdef CONFIG_P2P 1285 1286 static int wpa_config_parse_p2p_client_list(const struct parse_data *data, 1287 struct wpa_ssid *ssid, int line, 1288 const char *value) 1289 { 1290 const char *pos; 1291 u8 *buf, *n, addr[ETH_ALEN]; 1292 size_t count; 1293 1294 buf = NULL; 1295 count = 0; 1296 1297 pos = value; 1298 while (pos && *pos) { 1299 while (*pos == ' ') 1300 pos++; 1301 1302 if (hwaddr_aton(pos, addr)) { 1303 if (count == 0) { 1304 wpa_printf(MSG_ERROR, "Line %d: Invalid " 1305 "p2p_client_list address '%s'.", 1306 line, value); 1307 os_free(buf); 1308 return -1; 1309 } 1310 /* continue anyway since this could have been from a 1311 * truncated configuration file line */ 1312 wpa_printf(MSG_INFO, "Line %d: Ignore likely " 1313 "truncated p2p_client_list address '%s'", 1314 line, pos); 1315 } else { 1316 n = os_realloc_array(buf, count + 1, ETH_ALEN); 1317 if (n == NULL) { 1318 os_free(buf); 1319 return -1; 1320 } 1321 buf = n; 1322 os_memmove(buf + ETH_ALEN, buf, count * ETH_ALEN); 1323 os_memcpy(buf, addr, ETH_ALEN); 1324 count++; 1325 wpa_hexdump(MSG_MSGDUMP, "p2p_client_list", 1326 addr, ETH_ALEN); 1327 } 1328 1329 pos = os_strchr(pos, ' '); 1330 } 1331 1332 os_free(ssid->p2p_client_list); 1333 ssid->p2p_client_list = buf; 1334 ssid->num_p2p_clients = count; 1335 1336 return 0; 1337 } 1338 1339 1340 #ifndef NO_CONFIG_WRITE 1341 static char * wpa_config_write_p2p_client_list(const struct parse_data *data, 1342 struct wpa_ssid *ssid) 1343 { 1344 char *value, *end, *pos; 1345 int res; 1346 size_t i; 1347 1348 if (ssid->p2p_client_list == NULL || ssid->num_p2p_clients == 0) 1349 return NULL; 1350 1351 value = os_malloc(20 * ssid->num_p2p_clients); 1352 if (value == NULL) 1353 return NULL; 1354 pos = value; 1355 end = value + 20 * ssid->num_p2p_clients; 1356 1357 for (i = ssid->num_p2p_clients; i > 0; i--) { 1358 res = os_snprintf(pos, end - pos, MACSTR " ", 1359 MAC2STR(ssid->p2p_client_list + 1360 (i - 1) * ETH_ALEN)); 1361 if (res < 0 || res >= end - pos) { 1362 os_free(value); 1363 return NULL; 1364 } 1365 pos += res; 1366 } 1367 1368 if (pos > value) 1369 pos[-1] = '\0'; 1370 1371 return value; 1372 } 1373 #endif /* NO_CONFIG_WRITE */ 1374 1375 1376 static int wpa_config_parse_psk_list(const struct parse_data *data, 1377 struct wpa_ssid *ssid, int line, 1378 const char *value) 1379 { 1380 struct psk_list_entry *p; 1381 const char *pos; 1382 1383 p = os_zalloc(sizeof(*p)); 1384 if (p == NULL) 1385 return -1; 1386 1387 pos = value; 1388 if (os_strncmp(pos, "P2P-", 4) == 0) { 1389 p->p2p = 1; 1390 pos += 4; 1391 } 1392 1393 if (hwaddr_aton(pos, p->addr)) { 1394 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'", 1395 line, pos); 1396 os_free(p); 1397 return -1; 1398 } 1399 pos += 17; 1400 if (*pos != '-') { 1401 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'", 1402 line, pos); 1403 os_free(p); 1404 return -1; 1405 } 1406 pos++; 1407 1408 if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') { 1409 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'", 1410 line, pos); 1411 os_free(p); 1412 return -1; 1413 } 1414 1415 dl_list_add(&ssid->psk_list, &p->list); 1416 1417 return 0; 1418 } 1419 1420 1421 #ifndef NO_CONFIG_WRITE 1422 static char * wpa_config_write_psk_list(const struct parse_data *data, 1423 struct wpa_ssid *ssid) 1424 { 1425 return NULL; 1426 } 1427 #endif /* NO_CONFIG_WRITE */ 1428 1429 #endif /* CONFIG_P2P */ 1430 1431 /* Helper macros for network block parser */ 1432 1433 #ifdef OFFSET 1434 #undef OFFSET 1435 #endif /* OFFSET */ 1436 /* OFFSET: Get offset of a variable within the wpa_ssid structure */ 1437 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v) 1438 1439 /* STR: Define a string variable for an ASCII string; f = field name */ 1440 #ifdef NO_CONFIG_WRITE 1441 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f) 1442 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f) 1443 #else /* NO_CONFIG_WRITE */ 1444 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f) 1445 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f) 1446 #endif /* NO_CONFIG_WRITE */ 1447 #define STR(f) _STR(f), NULL, NULL, NULL, 0 1448 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0 1449 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1 1450 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1 1451 1452 /* STR_LEN: Define a string variable with a separate variable for storing the 1453 * data length. Unlike STR(), this can be used to store arbitrary binary data 1454 * (i.e., even nul termination character). */ 1455 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len) 1456 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len) 1457 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0 1458 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0 1459 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1 1460 1461 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length 1462 * explicitly specified. */ 1463 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max) 1464 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0 1465 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1 1466 1467 #ifdef NO_CONFIG_WRITE 1468 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0 1469 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0 1470 #else /* NO_CONFIG_WRITE */ 1471 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \ 1472 OFFSET(f), (void *) 0 1473 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \ 1474 OFFSET(eap.f), (void *) 0 1475 #endif /* NO_CONFIG_WRITE */ 1476 1477 /* INT: Define an integer variable */ 1478 #define INT(f) _INT(f), NULL, NULL, 0 1479 #define INTe(f) _INTe(f), NULL, NULL, 0 1480 1481 /* INT_RANGE: Define an integer variable with allowed value range */ 1482 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0 1483 1484 /* FUNC: Define a configuration variable that uses a custom function for 1485 * parsing and writing the value. */ 1486 #ifdef NO_CONFIG_WRITE 1487 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL 1488 #else /* NO_CONFIG_WRITE */ 1489 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \ 1490 NULL, NULL, NULL, NULL 1491 #endif /* NO_CONFIG_WRITE */ 1492 #define FUNC(f) _FUNC(f), 0 1493 #define FUNC_KEY(f) _FUNC(f), 1 1494 1495 /* 1496 * Table of network configuration variables. This table is used to parse each 1497 * network configuration variable, e.g., each line in wpa_supplicant.conf file 1498 * that is inside a network block. 1499 * 1500 * This table is generated using the helper macros defined above and with 1501 * generous help from the C pre-processor. The field name is stored as a string 1502 * into .name and for STR and INT types, the offset of the target buffer within 1503 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar 1504 * offset to the field containing the length of the configuration variable. 1505 * .param3 and .param4 can be used to mark the allowed range (length for STR 1506 * and value for INT). 1507 * 1508 * For each configuration line in wpa_supplicant.conf, the parser goes through 1509 * this table and select the entry that matches with the field name. The parser 1510 * function (.parser) is then called to parse the actual value of the field. 1511 * 1512 * This kind of mechanism makes it easy to add new configuration parameters, 1513 * since only one line needs to be added into this table and into the 1514 * struct wpa_ssid definition if the new variable is either a string or 1515 * integer. More complex types will need to use their own parser and writer 1516 * functions. 1517 */ 1518 static const struct parse_data ssid_fields[] = { 1519 { STR_RANGE(ssid, 0, MAX_SSID_LEN) }, 1520 { INT_RANGE(scan_ssid, 0, 1) }, 1521 { FUNC(bssid) }, 1522 { FUNC_KEY(psk) }, 1523 { FUNC(proto) }, 1524 { FUNC(key_mgmt) }, 1525 { INT(bg_scan_period) }, 1526 { FUNC(pairwise) }, 1527 { FUNC(group) }, 1528 { FUNC(auth_alg) }, 1529 { FUNC(scan_freq) }, 1530 { FUNC(freq_list) }, 1531 #ifdef IEEE8021X_EAPOL 1532 { FUNC(eap) }, 1533 { STR_LENe(identity) }, 1534 { STR_LENe(anonymous_identity) }, 1535 { FUNC_KEY(password) }, 1536 { STRe(ca_cert) }, 1537 { STRe(ca_path) }, 1538 { STRe(client_cert) }, 1539 { STRe(private_key) }, 1540 { STR_KEYe(private_key_passwd) }, 1541 { STRe(dh_file) }, 1542 { STRe(subject_match) }, 1543 { STRe(altsubject_match) }, 1544 { STRe(ca_cert2) }, 1545 { STRe(ca_path2) }, 1546 { STRe(client_cert2) }, 1547 { STRe(private_key2) }, 1548 { STR_KEYe(private_key2_passwd) }, 1549 { STRe(dh_file2) }, 1550 { STRe(subject_match2) }, 1551 { STRe(altsubject_match2) }, 1552 { STRe(phase1) }, 1553 { STRe(phase2) }, 1554 { STRe(pcsc) }, 1555 { STR_KEYe(pin) }, 1556 { STRe(engine_id) }, 1557 { STRe(key_id) }, 1558 { STRe(cert_id) }, 1559 { STRe(ca_cert_id) }, 1560 { STR_KEYe(pin2) }, 1561 { STRe(engine2_id) }, 1562 { STRe(key2_id) }, 1563 { STRe(cert2_id) }, 1564 { STRe(ca_cert2_id) }, 1565 { INTe(engine) }, 1566 { INTe(engine2) }, 1567 { INT(eapol_flags) }, 1568 #endif /* IEEE8021X_EAPOL */ 1569 { FUNC_KEY(wep_key0) }, 1570 { FUNC_KEY(wep_key1) }, 1571 { FUNC_KEY(wep_key2) }, 1572 { FUNC_KEY(wep_key3) }, 1573 { INT(wep_tx_keyidx) }, 1574 { INT(priority) }, 1575 #ifdef IEEE8021X_EAPOL 1576 { INT(eap_workaround) }, 1577 { STRe(pac_file) }, 1578 { INTe(fragment_size) }, 1579 { INTe(ocsp) }, 1580 #endif /* IEEE8021X_EAPOL */ 1581 { INT_RANGE(mode, 0, 4) }, 1582 { INT_RANGE(proactive_key_caching, 0, 1) }, 1583 { INT_RANGE(disabled, 0, 2) }, 1584 { STR(id_str) }, 1585 #ifdef CONFIG_IEEE80211W 1586 { INT_RANGE(ieee80211w, 0, 2) }, 1587 #endif /* CONFIG_IEEE80211W */ 1588 { INT_RANGE(peerkey, 0, 1) }, 1589 { INT_RANGE(mixed_cell, 0, 1) }, 1590 { INT_RANGE(frequency, 0, 65000) }, 1591 { INT(wpa_ptk_rekey) }, 1592 { STR(bgscan) }, 1593 { INT_RANGE(ignore_broadcast_ssid, 0, 2) }, 1594 #ifdef CONFIG_P2P 1595 { FUNC(p2p_client_list) }, 1596 { FUNC(psk_list) }, 1597 #endif /* CONFIG_P2P */ 1598 #ifdef CONFIG_HT_OVERRIDES 1599 { INT_RANGE(disable_ht, 0, 1) }, 1600 { INT_RANGE(disable_ht40, -1, 1) }, 1601 { INT_RANGE(disable_sgi, 0, 1) }, 1602 { INT_RANGE(disable_max_amsdu, -1, 1) }, 1603 { INT_RANGE(ampdu_factor, -1, 3) }, 1604 { INT_RANGE(ampdu_density, -1, 7) }, 1605 { STR(ht_mcs) }, 1606 #endif /* CONFIG_HT_OVERRIDES */ 1607 #ifdef CONFIG_VHT_OVERRIDES 1608 { INT_RANGE(disable_vht, 0, 1) }, 1609 { INT(vht_capa) }, 1610 { INT(vht_capa_mask) }, 1611 { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) }, 1612 { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) }, 1613 { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) }, 1614 { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) }, 1615 { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) }, 1616 { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) }, 1617 { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) }, 1618 { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) }, 1619 { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) }, 1620 { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) }, 1621 { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) }, 1622 { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) }, 1623 { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) }, 1624 { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) }, 1625 { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) }, 1626 { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) }, 1627 #endif /* CONFIG_VHT_OVERRIDES */ 1628 { INT(ap_max_inactivity) }, 1629 { INT(dtim_period) }, 1630 { INT(beacon_int) }, 1631 }; 1632 1633 #undef OFFSET 1634 #undef _STR 1635 #undef STR 1636 #undef STR_KEY 1637 #undef _STR_LEN 1638 #undef STR_LEN 1639 #undef STR_LEN_KEY 1640 #undef _STR_RANGE 1641 #undef STR_RANGE 1642 #undef STR_RANGE_KEY 1643 #undef _INT 1644 #undef INT 1645 #undef INT_RANGE 1646 #undef _FUNC 1647 #undef FUNC 1648 #undef FUNC_KEY 1649 #define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0])) 1650 1651 1652 /** 1653 * wpa_config_add_prio_network - Add a network to priority lists 1654 * @config: Configuration data from wpa_config_read() 1655 * @ssid: Pointer to the network configuration to be added to the list 1656 * Returns: 0 on success, -1 on failure 1657 * 1658 * This function is used to add a network block to the priority list of 1659 * networks. This must be called for each network when reading in the full 1660 * configuration. In addition, this can be used indirectly when updating 1661 * priorities by calling wpa_config_update_prio_list(). 1662 */ 1663 int wpa_config_add_prio_network(struct wpa_config *config, 1664 struct wpa_ssid *ssid) 1665 { 1666 int prio; 1667 struct wpa_ssid *prev, **nlist; 1668 1669 /* 1670 * Add to an existing priority list if one is available for the 1671 * configured priority level for this network. 1672 */ 1673 for (prio = 0; prio < config->num_prio; prio++) { 1674 prev = config->pssid[prio]; 1675 if (prev->priority == ssid->priority) { 1676 while (prev->pnext) 1677 prev = prev->pnext; 1678 prev->pnext = ssid; 1679 return 0; 1680 } 1681 } 1682 1683 /* First network for this priority - add a new priority list */ 1684 nlist = os_realloc_array(config->pssid, config->num_prio + 1, 1685 sizeof(struct wpa_ssid *)); 1686 if (nlist == NULL) 1687 return -1; 1688 1689 for (prio = 0; prio < config->num_prio; prio++) { 1690 if (nlist[prio]->priority < ssid->priority) { 1691 os_memmove(&nlist[prio + 1], &nlist[prio], 1692 (config->num_prio - prio) * 1693 sizeof(struct wpa_ssid *)); 1694 break; 1695 } 1696 } 1697 1698 nlist[prio] = ssid; 1699 config->num_prio++; 1700 config->pssid = nlist; 1701 1702 return 0; 1703 } 1704 1705 1706 /** 1707 * wpa_config_update_prio_list - Update network priority list 1708 * @config: Configuration data from wpa_config_read() 1709 * Returns: 0 on success, -1 on failure 1710 * 1711 * This function is called to update the priority list of networks in the 1712 * configuration when a network is being added or removed. This is also called 1713 * if a priority for a network is changed. 1714 */ 1715 int wpa_config_update_prio_list(struct wpa_config *config) 1716 { 1717 struct wpa_ssid *ssid; 1718 int ret = 0; 1719 1720 os_free(config->pssid); 1721 config->pssid = NULL; 1722 config->num_prio = 0; 1723 1724 ssid = config->ssid; 1725 while (ssid) { 1726 ssid->pnext = NULL; 1727 if (wpa_config_add_prio_network(config, ssid) < 0) 1728 ret = -1; 1729 ssid = ssid->next; 1730 } 1731 1732 return ret; 1733 } 1734 1735 1736 #ifdef IEEE8021X_EAPOL 1737 static void eap_peer_config_free(struct eap_peer_config *eap) 1738 { 1739 os_free(eap->eap_methods); 1740 os_free(eap->identity); 1741 os_free(eap->anonymous_identity); 1742 os_free(eap->password); 1743 os_free(eap->ca_cert); 1744 os_free(eap->ca_path); 1745 os_free(eap->client_cert); 1746 os_free(eap->private_key); 1747 os_free(eap->private_key_passwd); 1748 os_free(eap->dh_file); 1749 os_free(eap->subject_match); 1750 os_free(eap->altsubject_match); 1751 os_free(eap->ca_cert2); 1752 os_free(eap->ca_path2); 1753 os_free(eap->client_cert2); 1754 os_free(eap->private_key2); 1755 os_free(eap->private_key2_passwd); 1756 os_free(eap->dh_file2); 1757 os_free(eap->subject_match2); 1758 os_free(eap->altsubject_match2); 1759 os_free(eap->phase1); 1760 os_free(eap->phase2); 1761 os_free(eap->pcsc); 1762 os_free(eap->pin); 1763 os_free(eap->engine_id); 1764 os_free(eap->key_id); 1765 os_free(eap->cert_id); 1766 os_free(eap->ca_cert_id); 1767 os_free(eap->key2_id); 1768 os_free(eap->cert2_id); 1769 os_free(eap->ca_cert2_id); 1770 os_free(eap->pin2); 1771 os_free(eap->engine2_id); 1772 os_free(eap->otp); 1773 os_free(eap->pending_req_otp); 1774 os_free(eap->pac_file); 1775 os_free(eap->new_password); 1776 } 1777 #endif /* IEEE8021X_EAPOL */ 1778 1779 1780 /** 1781 * wpa_config_free_ssid - Free network/ssid configuration data 1782 * @ssid: Configuration data for the network 1783 * 1784 * This function frees all resources allocated for the network configuration 1785 * data. 1786 */ 1787 void wpa_config_free_ssid(struct wpa_ssid *ssid) 1788 { 1789 struct psk_list_entry *psk; 1790 1791 os_free(ssid->ssid); 1792 os_free(ssid->passphrase); 1793 os_free(ssid->ext_psk); 1794 #ifdef IEEE8021X_EAPOL 1795 eap_peer_config_free(&ssid->eap); 1796 #endif /* IEEE8021X_EAPOL */ 1797 os_free(ssid->id_str); 1798 os_free(ssid->scan_freq); 1799 os_free(ssid->freq_list); 1800 os_free(ssid->bgscan); 1801 os_free(ssid->p2p_client_list); 1802 #ifdef CONFIG_HT_OVERRIDES 1803 os_free(ssid->ht_mcs); 1804 #endif /* CONFIG_HT_OVERRIDES */ 1805 while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry, 1806 list))) { 1807 dl_list_del(&psk->list); 1808 os_free(psk); 1809 } 1810 os_free(ssid); 1811 } 1812 1813 1814 void wpa_config_free_cred(struct wpa_cred *cred) 1815 { 1816 os_free(cred->realm); 1817 os_free(cred->username); 1818 os_free(cred->password); 1819 os_free(cred->ca_cert); 1820 os_free(cred->client_cert); 1821 os_free(cred->private_key); 1822 os_free(cred->private_key_passwd); 1823 os_free(cred->imsi); 1824 os_free(cred->milenage); 1825 os_free(cred->domain); 1826 os_free(cred->eap_method); 1827 os_free(cred->phase1); 1828 os_free(cred->phase2); 1829 os_free(cred->excluded_ssid); 1830 os_free(cred); 1831 } 1832 1833 1834 /** 1835 * wpa_config_free - Free configuration data 1836 * @config: Configuration data from wpa_config_read() 1837 * 1838 * This function frees all resources allocated for the configuration data by 1839 * wpa_config_read(). 1840 */ 1841 void wpa_config_free(struct wpa_config *config) 1842 { 1843 #ifndef CONFIG_NO_CONFIG_BLOBS 1844 struct wpa_config_blob *blob, *prevblob; 1845 #endif /* CONFIG_NO_CONFIG_BLOBS */ 1846 struct wpa_ssid *ssid, *prev = NULL; 1847 struct wpa_cred *cred, *cprev; 1848 1849 ssid = config->ssid; 1850 while (ssid) { 1851 prev = ssid; 1852 ssid = ssid->next; 1853 wpa_config_free_ssid(prev); 1854 } 1855 1856 cred = config->cred; 1857 while (cred) { 1858 cprev = cred; 1859 cred = cred->next; 1860 wpa_config_free_cred(cprev); 1861 } 1862 1863 #ifndef CONFIG_NO_CONFIG_BLOBS 1864 blob = config->blobs; 1865 prevblob = NULL; 1866 while (blob) { 1867 prevblob = blob; 1868 blob = blob->next; 1869 wpa_config_free_blob(prevblob); 1870 } 1871 #endif /* CONFIG_NO_CONFIG_BLOBS */ 1872 1873 wpabuf_free(config->wps_vendor_ext_m1); 1874 os_free(config->ctrl_interface); 1875 os_free(config->ctrl_interface_group); 1876 os_free(config->opensc_engine_path); 1877 os_free(config->pkcs11_engine_path); 1878 os_free(config->pkcs11_module_path); 1879 os_free(config->pcsc_reader); 1880 os_free(config->pcsc_pin); 1881 os_free(config->driver_param); 1882 os_free(config->device_name); 1883 os_free(config->manufacturer); 1884 os_free(config->model_name); 1885 os_free(config->model_number); 1886 os_free(config->serial_number); 1887 os_free(config->config_methods); 1888 os_free(config->p2p_ssid_postfix); 1889 os_free(config->pssid); 1890 os_free(config->p2p_pref_chan); 1891 os_free(config->autoscan); 1892 os_free(config->freq_list); 1893 wpabuf_free(config->wps_nfc_dh_pubkey); 1894 wpabuf_free(config->wps_nfc_dh_privkey); 1895 wpabuf_free(config->wps_nfc_dev_pw); 1896 os_free(config->ext_password_backend); 1897 os_free(config->sae_groups); 1898 wpabuf_free(config->ap_vendor_elements); 1899 os_free(config); 1900 } 1901 1902 1903 /** 1904 * wpa_config_foreach_network - Iterate over each configured network 1905 * @config: Configuration data from wpa_config_read() 1906 * @func: Callback function to process each network 1907 * @arg: Opaque argument to pass to callback function 1908 * 1909 * Iterate over the set of configured networks calling the specified 1910 * function for each item. We guard against callbacks removing the 1911 * supplied network. 1912 */ 1913 void wpa_config_foreach_network(struct wpa_config *config, 1914 void (*func)(void *, struct wpa_ssid *), 1915 void *arg) 1916 { 1917 struct wpa_ssid *ssid, *next; 1918 1919 ssid = config->ssid; 1920 while (ssid) { 1921 next = ssid->next; 1922 func(arg, ssid); 1923 ssid = next; 1924 } 1925 } 1926 1927 1928 /** 1929 * wpa_config_get_network - Get configured network based on id 1930 * @config: Configuration data from wpa_config_read() 1931 * @id: Unique network id to search for 1932 * Returns: Network configuration or %NULL if not found 1933 */ 1934 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id) 1935 { 1936 struct wpa_ssid *ssid; 1937 1938 ssid = config->ssid; 1939 while (ssid) { 1940 if (id == ssid->id) 1941 break; 1942 ssid = ssid->next; 1943 } 1944 1945 return ssid; 1946 } 1947 1948 1949 /** 1950 * wpa_config_add_network - Add a new network with empty configuration 1951 * @config: Configuration data from wpa_config_read() 1952 * Returns: The new network configuration or %NULL if operation failed 1953 */ 1954 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config) 1955 { 1956 int id; 1957 struct wpa_ssid *ssid, *last = NULL; 1958 1959 id = -1; 1960 ssid = config->ssid; 1961 while (ssid) { 1962 if (ssid->id > id) 1963 id = ssid->id; 1964 last = ssid; 1965 ssid = ssid->next; 1966 } 1967 id++; 1968 1969 ssid = os_zalloc(sizeof(*ssid)); 1970 if (ssid == NULL) 1971 return NULL; 1972 ssid->id = id; 1973 dl_list_init(&ssid->psk_list); 1974 if (last) 1975 last->next = ssid; 1976 else 1977 config->ssid = ssid; 1978 1979 wpa_config_update_prio_list(config); 1980 1981 return ssid; 1982 } 1983 1984 1985 /** 1986 * wpa_config_remove_network - Remove a configured network based on id 1987 * @config: Configuration data from wpa_config_read() 1988 * @id: Unique network id to search for 1989 * Returns: 0 on success, or -1 if the network was not found 1990 */ 1991 int wpa_config_remove_network(struct wpa_config *config, int id) 1992 { 1993 struct wpa_ssid *ssid, *prev = NULL; 1994 1995 ssid = config->ssid; 1996 while (ssid) { 1997 if (id == ssid->id) 1998 break; 1999 prev = ssid; 2000 ssid = ssid->next; 2001 } 2002 2003 if (ssid == NULL) 2004 return -1; 2005 2006 if (prev) 2007 prev->next = ssid->next; 2008 else 2009 config->ssid = ssid->next; 2010 2011 wpa_config_update_prio_list(config); 2012 wpa_config_free_ssid(ssid); 2013 return 0; 2014 } 2015 2016 2017 /** 2018 * wpa_config_set_network_defaults - Set network default values 2019 * @ssid: Pointer to network configuration data 2020 */ 2021 void wpa_config_set_network_defaults(struct wpa_ssid *ssid) 2022 { 2023 ssid->proto = DEFAULT_PROTO; 2024 ssid->pairwise_cipher = DEFAULT_PAIRWISE; 2025 ssid->group_cipher = DEFAULT_GROUP; 2026 ssid->key_mgmt = DEFAULT_KEY_MGMT; 2027 ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; 2028 #ifdef IEEE8021X_EAPOL 2029 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS; 2030 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND; 2031 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE; 2032 #endif /* IEEE8021X_EAPOL */ 2033 #ifdef CONFIG_HT_OVERRIDES 2034 ssid->disable_ht = DEFAULT_DISABLE_HT; 2035 ssid->disable_ht40 = DEFAULT_DISABLE_HT40; 2036 ssid->disable_sgi = DEFAULT_DISABLE_SGI; 2037 ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU; 2038 ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR; 2039 ssid->ampdu_density = DEFAULT_AMPDU_DENSITY; 2040 #endif /* CONFIG_HT_OVERRIDES */ 2041 #ifdef CONFIG_VHT_OVERRIDES 2042 ssid->vht_rx_mcs_nss_1 = -1; 2043 ssid->vht_rx_mcs_nss_2 = -1; 2044 ssid->vht_rx_mcs_nss_3 = -1; 2045 ssid->vht_rx_mcs_nss_4 = -1; 2046 ssid->vht_rx_mcs_nss_5 = -1; 2047 ssid->vht_rx_mcs_nss_6 = -1; 2048 ssid->vht_rx_mcs_nss_7 = -1; 2049 ssid->vht_rx_mcs_nss_8 = -1; 2050 ssid->vht_tx_mcs_nss_1 = -1; 2051 ssid->vht_tx_mcs_nss_2 = -1; 2052 ssid->vht_tx_mcs_nss_3 = -1; 2053 ssid->vht_tx_mcs_nss_4 = -1; 2054 ssid->vht_tx_mcs_nss_5 = -1; 2055 ssid->vht_tx_mcs_nss_6 = -1; 2056 ssid->vht_tx_mcs_nss_7 = -1; 2057 ssid->vht_tx_mcs_nss_8 = -1; 2058 #endif /* CONFIG_VHT_OVERRIDES */ 2059 ssid->proactive_key_caching = -1; 2060 #ifdef CONFIG_IEEE80211W 2061 ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT; 2062 #endif /* CONFIG_IEEE80211W */ 2063 } 2064 2065 2066 /** 2067 * wpa_config_set - Set a variable in network configuration 2068 * @ssid: Pointer to network configuration data 2069 * @var: Variable name, e.g., "ssid" 2070 * @value: Variable value 2071 * @line: Line number in configuration file or 0 if not used 2072 * Returns: 0 on success, -1 on failure 2073 * 2074 * This function can be used to set network configuration variables based on 2075 * both the configuration file and management interface input. The value 2076 * parameter must be in the same format as the text-based configuration file is 2077 * using. For example, strings are using double quotation marks. 2078 */ 2079 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value, 2080 int line) 2081 { 2082 size_t i; 2083 int ret = 0; 2084 2085 if (ssid == NULL || var == NULL || value == NULL) 2086 return -1; 2087 2088 for (i = 0; i < NUM_SSID_FIELDS; i++) { 2089 const struct parse_data *field = &ssid_fields[i]; 2090 if (os_strcmp(var, field->name) != 0) 2091 continue; 2092 2093 if (field->parser(field, ssid, line, value)) { 2094 if (line) { 2095 wpa_printf(MSG_ERROR, "Line %d: failed to " 2096 "parse %s '%s'.", line, var, value); 2097 } 2098 ret = -1; 2099 } 2100 break; 2101 } 2102 if (i == NUM_SSID_FIELDS) { 2103 if (line) { 2104 wpa_printf(MSG_ERROR, "Line %d: unknown network field " 2105 "'%s'.", line, var); 2106 } 2107 ret = -1; 2108 } 2109 2110 return ret; 2111 } 2112 2113 2114 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var, 2115 const char *value) 2116 { 2117 size_t len; 2118 char *buf; 2119 int ret; 2120 2121 len = os_strlen(value); 2122 buf = os_malloc(len + 3); 2123 if (buf == NULL) 2124 return -1; 2125 buf[0] = '"'; 2126 os_memcpy(buf + 1, value, len); 2127 buf[len + 1] = '"'; 2128 buf[len + 2] = '\0'; 2129 ret = wpa_config_set(ssid, var, buf, 0); 2130 os_free(buf); 2131 return ret; 2132 } 2133 2134 2135 /** 2136 * wpa_config_get_all - Get all options from network configuration 2137 * @ssid: Pointer to network configuration data 2138 * @get_keys: Determines if keys/passwords will be included in returned list 2139 * (if they may be exported) 2140 * Returns: %NULL terminated list of all set keys and their values in the form 2141 * of [key1, val1, key2, val2, ... , NULL] 2142 * 2143 * This function can be used to get list of all configured network properties. 2144 * The caller is responsible for freeing the returned list and all its 2145 * elements. 2146 */ 2147 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys) 2148 { 2149 const struct parse_data *field; 2150 char *key, *value; 2151 size_t i; 2152 char **props; 2153 int fields_num; 2154 2155 get_keys = get_keys && ssid->export_keys; 2156 2157 props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *)); 2158 if (!props) 2159 return NULL; 2160 2161 fields_num = 0; 2162 for (i = 0; i < NUM_SSID_FIELDS; i++) { 2163 field = &ssid_fields[i]; 2164 if (field->key_data && !get_keys) 2165 continue; 2166 value = field->writer(field, ssid); 2167 if (value == NULL) 2168 continue; 2169 if (os_strlen(value) == 0) { 2170 os_free(value); 2171 continue; 2172 } 2173 2174 key = os_strdup(field->name); 2175 if (key == NULL) { 2176 os_free(value); 2177 goto err; 2178 } 2179 2180 props[fields_num * 2] = key; 2181 props[fields_num * 2 + 1] = value; 2182 2183 fields_num++; 2184 } 2185 2186 return props; 2187 2188 err: 2189 value = *props; 2190 while (value) 2191 os_free(value++); 2192 os_free(props); 2193 return NULL; 2194 } 2195 2196 2197 #ifndef NO_CONFIG_WRITE 2198 /** 2199 * wpa_config_get - Get a variable in network configuration 2200 * @ssid: Pointer to network configuration data 2201 * @var: Variable name, e.g., "ssid" 2202 * Returns: Value of the variable or %NULL on failure 2203 * 2204 * This function can be used to get network configuration variables. The 2205 * returned value is a copy of the configuration variable in text format, i.e,. 2206 * the same format that the text-based configuration file and wpa_config_set() 2207 * are using for the value. The caller is responsible for freeing the returned 2208 * value. 2209 */ 2210 char * wpa_config_get(struct wpa_ssid *ssid, const char *var) 2211 { 2212 size_t i; 2213 2214 if (ssid == NULL || var == NULL) 2215 return NULL; 2216 2217 for (i = 0; i < NUM_SSID_FIELDS; i++) { 2218 const struct parse_data *field = &ssid_fields[i]; 2219 if (os_strcmp(var, field->name) == 0) 2220 return field->writer(field, ssid); 2221 } 2222 2223 return NULL; 2224 } 2225 2226 2227 /** 2228 * wpa_config_get_no_key - Get a variable in network configuration (no keys) 2229 * @ssid: Pointer to network configuration data 2230 * @var: Variable name, e.g., "ssid" 2231 * Returns: Value of the variable or %NULL on failure 2232 * 2233 * This function can be used to get network configuration variable like 2234 * wpa_config_get(). The only difference is that this functions does not expose 2235 * key/password material from the configuration. In case a key/password field 2236 * is requested, the returned value is an empty string or %NULL if the variable 2237 * is not set or "*" if the variable is set (regardless of its value). The 2238 * returned value is a copy of the configuration variable in text format, i.e,. 2239 * the same format that the text-based configuration file and wpa_config_set() 2240 * are using for the value. The caller is responsible for freeing the returned 2241 * value. 2242 */ 2243 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var) 2244 { 2245 size_t i; 2246 2247 if (ssid == NULL || var == NULL) 2248 return NULL; 2249 2250 for (i = 0; i < NUM_SSID_FIELDS; i++) { 2251 const struct parse_data *field = &ssid_fields[i]; 2252 if (os_strcmp(var, field->name) == 0) { 2253 char *res = field->writer(field, ssid); 2254 if (field->key_data) { 2255 if (res && res[0]) { 2256 wpa_printf(MSG_DEBUG, "Do not allow " 2257 "key_data field to be " 2258 "exposed"); 2259 os_free(res); 2260 return os_strdup("*"); 2261 } 2262 2263 os_free(res); 2264 return NULL; 2265 } 2266 return res; 2267 } 2268 } 2269 2270 return NULL; 2271 } 2272 #endif /* NO_CONFIG_WRITE */ 2273 2274 2275 /** 2276 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID 2277 * @ssid: Pointer to network configuration data 2278 * 2279 * This function must be called to update WPA PSK when either SSID or the 2280 * passphrase has changed for the network configuration. 2281 */ 2282 void wpa_config_update_psk(struct wpa_ssid *ssid) 2283 { 2284 #ifndef CONFIG_NO_PBKDF2 2285 pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096, 2286 ssid->psk, PMK_LEN); 2287 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", 2288 ssid->psk, PMK_LEN); 2289 ssid->psk_set = 1; 2290 #endif /* CONFIG_NO_PBKDF2 */ 2291 } 2292 2293 2294 int wpa_config_set_cred(struct wpa_cred *cred, const char *var, 2295 const char *value, int line) 2296 { 2297 char *val; 2298 size_t len; 2299 2300 if (os_strcmp(var, "priority") == 0) { 2301 cred->priority = atoi(value); 2302 return 0; 2303 } 2304 2305 if (os_strcmp(var, "pcsc") == 0) { 2306 cred->pcsc = atoi(value); 2307 return 0; 2308 } 2309 2310 if (os_strcmp(var, "eap") == 0) { 2311 struct eap_method_type method; 2312 method.method = eap_peer_get_type(value, &method.vendor); 2313 if (method.vendor == EAP_VENDOR_IETF && 2314 method.method == EAP_TYPE_NONE) { 2315 wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' " 2316 "for a credential", line, value); 2317 return -1; 2318 } 2319 os_free(cred->eap_method); 2320 cred->eap_method = os_malloc(sizeof(*cred->eap_method)); 2321 if (cred->eap_method == NULL) 2322 return -1; 2323 os_memcpy(cred->eap_method, &method, sizeof(method)); 2324 return 0; 2325 } 2326 2327 if (os_strcmp(var, "password") == 0 && 2328 os_strncmp(value, "ext:", 4) == 0) { 2329 os_free(cred->password); 2330 cred->password = os_strdup(value); 2331 cred->ext_password = 1; 2332 return 0; 2333 } 2334 2335 val = wpa_config_parse_string(value, &len); 2336 if (val == NULL) { 2337 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string " 2338 "value '%s'.", line, var, value); 2339 return -1; 2340 } 2341 2342 if (os_strcmp(var, "realm") == 0) { 2343 os_free(cred->realm); 2344 cred->realm = val; 2345 return 0; 2346 } 2347 2348 if (os_strcmp(var, "username") == 0) { 2349 os_free(cred->username); 2350 cred->username = val; 2351 return 0; 2352 } 2353 2354 if (os_strcmp(var, "password") == 0) { 2355 os_free(cred->password); 2356 cred->password = val; 2357 cred->ext_password = 0; 2358 return 0; 2359 } 2360 2361 if (os_strcmp(var, "ca_cert") == 0) { 2362 os_free(cred->ca_cert); 2363 cred->ca_cert = val; 2364 return 0; 2365 } 2366 2367 if (os_strcmp(var, "client_cert") == 0) { 2368 os_free(cred->client_cert); 2369 cred->client_cert = val; 2370 return 0; 2371 } 2372 2373 if (os_strcmp(var, "private_key") == 0) { 2374 os_free(cred->private_key); 2375 cred->private_key = val; 2376 return 0; 2377 } 2378 2379 if (os_strcmp(var, "private_key_passwd") == 0) { 2380 os_free(cred->private_key_passwd); 2381 cred->private_key_passwd = val; 2382 return 0; 2383 } 2384 2385 if (os_strcmp(var, "imsi") == 0) { 2386 os_free(cred->imsi); 2387 cred->imsi = val; 2388 return 0; 2389 } 2390 2391 if (os_strcmp(var, "milenage") == 0) { 2392 os_free(cred->milenage); 2393 cred->milenage = val; 2394 return 0; 2395 } 2396 2397 if (os_strcmp(var, "domain") == 0) { 2398 os_free(cred->domain); 2399 cred->domain = val; 2400 return 0; 2401 } 2402 2403 if (os_strcmp(var, "phase1") == 0) { 2404 os_free(cred->phase1); 2405 cred->phase1 = val; 2406 return 0; 2407 } 2408 2409 if (os_strcmp(var, "phase2") == 0) { 2410 os_free(cred->phase2); 2411 cred->phase2 = val; 2412 return 0; 2413 } 2414 2415 if (os_strcmp(var, "roaming_consortium") == 0) { 2416 if (len < 3 || len > sizeof(cred->roaming_consortium)) { 2417 wpa_printf(MSG_ERROR, "Line %d: invalid " 2418 "roaming_consortium length %d (3..15 " 2419 "expected)", line, (int) len); 2420 os_free(val); 2421 return -1; 2422 } 2423 os_memcpy(cred->roaming_consortium, val, len); 2424 cred->roaming_consortium_len = len; 2425 os_free(val); 2426 return 0; 2427 } 2428 2429 if (os_strcmp(var, "excluded_ssid") == 0) { 2430 struct excluded_ssid *e; 2431 2432 if (len > MAX_SSID_LEN) { 2433 wpa_printf(MSG_ERROR, "Line %d: invalid " 2434 "excluded_ssid length %d", line, (int) len); 2435 os_free(val); 2436 return -1; 2437 } 2438 2439 e = os_realloc_array(cred->excluded_ssid, 2440 cred->num_excluded_ssid + 1, 2441 sizeof(struct excluded_ssid)); 2442 if (e == NULL) { 2443 os_free(val); 2444 return -1; 2445 } 2446 cred->excluded_ssid = e; 2447 2448 e = &cred->excluded_ssid[cred->num_excluded_ssid++]; 2449 os_memcpy(e->ssid, val, len); 2450 e->ssid_len = len; 2451 2452 os_free(val); 2453 2454 return 0; 2455 } 2456 2457 if (line) { 2458 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.", 2459 line, var); 2460 } 2461 2462 os_free(val); 2463 2464 return -1; 2465 } 2466 2467 2468 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id) 2469 { 2470 struct wpa_cred *cred; 2471 2472 cred = config->cred; 2473 while (cred) { 2474 if (id == cred->id) 2475 break; 2476 cred = cred->next; 2477 } 2478 2479 return cred; 2480 } 2481 2482 2483 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config) 2484 { 2485 int id; 2486 struct wpa_cred *cred, *last = NULL; 2487 2488 id = -1; 2489 cred = config->cred; 2490 while (cred) { 2491 if (cred->id > id) 2492 id = cred->id; 2493 last = cred; 2494 cred = cred->next; 2495 } 2496 id++; 2497 2498 cred = os_zalloc(sizeof(*cred)); 2499 if (cred == NULL) 2500 return NULL; 2501 cred->id = id; 2502 if (last) 2503 last->next = cred; 2504 else 2505 config->cred = cred; 2506 2507 return cred; 2508 } 2509 2510 2511 int wpa_config_remove_cred(struct wpa_config *config, int id) 2512 { 2513 struct wpa_cred *cred, *prev = NULL; 2514 2515 cred = config->cred; 2516 while (cred) { 2517 if (id == cred->id) 2518 break; 2519 prev = cred; 2520 cred = cred->next; 2521 } 2522 2523 if (cred == NULL) 2524 return -1; 2525 2526 if (prev) 2527 prev->next = cred->next; 2528 else 2529 config->cred = cred->next; 2530 2531 wpa_config_free_cred(cred); 2532 return 0; 2533 } 2534 2535 2536 #ifndef CONFIG_NO_CONFIG_BLOBS 2537 /** 2538 * wpa_config_get_blob - Get a named configuration blob 2539 * @config: Configuration data from wpa_config_read() 2540 * @name: Name of the blob 2541 * Returns: Pointer to blob data or %NULL if not found 2542 */ 2543 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config, 2544 const char *name) 2545 { 2546 struct wpa_config_blob *blob = config->blobs; 2547 2548 while (blob) { 2549 if (os_strcmp(blob->name, name) == 0) 2550 return blob; 2551 blob = blob->next; 2552 } 2553 return NULL; 2554 } 2555 2556 2557 /** 2558 * wpa_config_set_blob - Set or add a named configuration blob 2559 * @config: Configuration data from wpa_config_read() 2560 * @blob: New value for the blob 2561 * 2562 * Adds a new configuration blob or replaces the current value of an existing 2563 * blob. 2564 */ 2565 void wpa_config_set_blob(struct wpa_config *config, 2566 struct wpa_config_blob *blob) 2567 { 2568 wpa_config_remove_blob(config, blob->name); 2569 blob->next = config->blobs; 2570 config->blobs = blob; 2571 } 2572 2573 2574 /** 2575 * wpa_config_free_blob - Free blob data 2576 * @blob: Pointer to blob to be freed 2577 */ 2578 void wpa_config_free_blob(struct wpa_config_blob *blob) 2579 { 2580 if (blob) { 2581 os_free(blob->name); 2582 os_free(blob->data); 2583 os_free(blob); 2584 } 2585 } 2586 2587 2588 /** 2589 * wpa_config_remove_blob - Remove a named configuration blob 2590 * @config: Configuration data from wpa_config_read() 2591 * @name: Name of the blob to remove 2592 * Returns: 0 if blob was removed or -1 if blob was not found 2593 */ 2594 int wpa_config_remove_blob(struct wpa_config *config, const char *name) 2595 { 2596 struct wpa_config_blob *pos = config->blobs, *prev = NULL; 2597 2598 while (pos) { 2599 if (os_strcmp(pos->name, name) == 0) { 2600 if (prev) 2601 prev->next = pos->next; 2602 else 2603 config->blobs = pos->next; 2604 wpa_config_free_blob(pos); 2605 return 0; 2606 } 2607 prev = pos; 2608 pos = pos->next; 2609 } 2610 2611 return -1; 2612 } 2613 #endif /* CONFIG_NO_CONFIG_BLOBS */ 2614 2615 2616 /** 2617 * wpa_config_alloc_empty - Allocate an empty configuration 2618 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain 2619 * socket 2620 * @driver_param: Driver parameters 2621 * Returns: Pointer to allocated configuration data or %NULL on failure 2622 */ 2623 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface, 2624 const char *driver_param) 2625 { 2626 struct wpa_config *config; 2627 const int aCWmin = 4, aCWmax = 10; 2628 const struct hostapd_wmm_ac_params ac_bk = 2629 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */ 2630 const struct hostapd_wmm_ac_params ac_be = 2631 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */ 2632 const struct hostapd_wmm_ac_params ac_vi = /* video traffic */ 2633 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 }; 2634 const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */ 2635 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 }; 2636 2637 config = os_zalloc(sizeof(*config)); 2638 if (config == NULL) 2639 return NULL; 2640 config->eapol_version = DEFAULT_EAPOL_VERSION; 2641 config->ap_scan = DEFAULT_AP_SCAN; 2642 config->fast_reauth = DEFAULT_FAST_REAUTH; 2643 config->p2p_go_intent = DEFAULT_P2P_GO_INTENT; 2644 config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS; 2645 config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY; 2646 config->bss_max_count = DEFAULT_BSS_MAX_COUNT; 2647 config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE; 2648 config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT; 2649 config->max_num_sta = DEFAULT_MAX_NUM_STA; 2650 config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE; 2651 config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ; 2652 config->wmm_ac_params[0] = ac_be; 2653 config->wmm_ac_params[1] = ac_bk; 2654 config->wmm_ac_params[2] = ac_vi; 2655 config->wmm_ac_params[3] = ac_vo; 2656 2657 if (ctrl_interface) 2658 config->ctrl_interface = os_strdup(ctrl_interface); 2659 if (driver_param) 2660 config->driver_param = os_strdup(driver_param); 2661 2662 return config; 2663 } 2664 2665 2666 #ifndef CONFIG_NO_STDOUT_DEBUG 2667 /** 2668 * wpa_config_debug_dump_networks - Debug dump of configured networks 2669 * @config: Configuration data from wpa_config_read() 2670 */ 2671 void wpa_config_debug_dump_networks(struct wpa_config *config) 2672 { 2673 int prio; 2674 struct wpa_ssid *ssid; 2675 2676 for (prio = 0; prio < config->num_prio; prio++) { 2677 ssid = config->pssid[prio]; 2678 wpa_printf(MSG_DEBUG, "Priority group %d", 2679 ssid->priority); 2680 while (ssid) { 2681 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'", 2682 ssid->id, 2683 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 2684 ssid = ssid->pnext; 2685 } 2686 } 2687 } 2688 #endif /* CONFIG_NO_STDOUT_DEBUG */ 2689 2690 2691 struct global_parse_data { 2692 char *name; 2693 int (*parser)(const struct global_parse_data *data, 2694 struct wpa_config *config, int line, const char *value); 2695 void *param1, *param2, *param3; 2696 unsigned int changed_flag; 2697 }; 2698 2699 2700 static int wpa_global_config_parse_int(const struct global_parse_data *data, 2701 struct wpa_config *config, int line, 2702 const char *pos) 2703 { 2704 int val, *dst; 2705 char *end; 2706 2707 dst = (int *) (((u8 *) config) + (long) data->param1); 2708 val = strtol(pos, &end, 0); 2709 if (*end) { 2710 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"", 2711 line, pos); 2712 return -1; 2713 } 2714 *dst = val; 2715 2716 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst); 2717 2718 if (data->param2 && *dst < (long) data->param2) { 2719 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d " 2720 "min_value=%ld)", line, data->name, *dst, 2721 (long) data->param2); 2722 *dst = (long) data->param2; 2723 return -1; 2724 } 2725 2726 if (data->param3 && *dst > (long) data->param3) { 2727 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d " 2728 "max_value=%ld)", line, data->name, *dst, 2729 (long) data->param3); 2730 *dst = (long) data->param3; 2731 return -1; 2732 } 2733 2734 return 0; 2735 } 2736 2737 2738 static int wpa_global_config_parse_str(const struct global_parse_data *data, 2739 struct wpa_config *config, int line, 2740 const char *pos) 2741 { 2742 size_t len; 2743 char **dst, *tmp; 2744 2745 len = os_strlen(pos); 2746 if (data->param2 && len < (size_t) data->param2) { 2747 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu " 2748 "min_len=%ld)", line, data->name, 2749 (unsigned long) len, (long) data->param2); 2750 return -1; 2751 } 2752 2753 if (data->param3 && len > (size_t) data->param3) { 2754 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu " 2755 "max_len=%ld)", line, data->name, 2756 (unsigned long) len, (long) data->param3); 2757 return -1; 2758 } 2759 2760 tmp = os_strdup(pos); 2761 if (tmp == NULL) 2762 return -1; 2763 2764 dst = (char **) (((u8 *) config) + (long) data->param1); 2765 os_free(*dst); 2766 *dst = tmp; 2767 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst); 2768 2769 return 0; 2770 } 2771 2772 2773 static int wpa_global_config_parse_bin(const struct global_parse_data *data, 2774 struct wpa_config *config, int line, 2775 const char *pos) 2776 { 2777 size_t len; 2778 struct wpabuf **dst, *tmp; 2779 2780 len = os_strlen(pos); 2781 if (len & 0x01) 2782 return -1; 2783 2784 tmp = wpabuf_alloc(len / 2); 2785 if (tmp == NULL) 2786 return -1; 2787 2788 if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) { 2789 wpabuf_free(tmp); 2790 return -1; 2791 } 2792 2793 dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1); 2794 wpabuf_free(*dst); 2795 *dst = tmp; 2796 wpa_printf(MSG_DEBUG, "%s", data->name); 2797 2798 return 0; 2799 } 2800 2801 2802 static int wpa_config_process_freq_list(const struct global_parse_data *data, 2803 struct wpa_config *config, int line, 2804 const char *value) 2805 { 2806 int *freqs; 2807 2808 freqs = wpa_config_parse_int_array(value); 2809 if (freqs == NULL) 2810 return -1; 2811 os_free(config->freq_list); 2812 config->freq_list = freqs; 2813 return 0; 2814 } 2815 2816 2817 static int wpa_config_process_country(const struct global_parse_data *data, 2818 struct wpa_config *config, int line, 2819 const char *pos) 2820 { 2821 if (!pos[0] || !pos[1]) { 2822 wpa_printf(MSG_DEBUG, "Invalid country set"); 2823 return -1; 2824 } 2825 config->country[0] = pos[0]; 2826 config->country[1] = pos[1]; 2827 wpa_printf(MSG_DEBUG, "country='%c%c'", 2828 config->country[0], config->country[1]); 2829 return 0; 2830 } 2831 2832 2833 static int wpa_config_process_load_dynamic_eap( 2834 const struct global_parse_data *data, struct wpa_config *config, 2835 int line, const char *so) 2836 { 2837 int ret; 2838 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so); 2839 ret = eap_peer_method_load(so); 2840 if (ret == -2) { 2841 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not " 2842 "reloading."); 2843 } else if (ret) { 2844 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP " 2845 "method '%s'.", line, so); 2846 return -1; 2847 } 2848 2849 return 0; 2850 } 2851 2852 2853 #ifdef CONFIG_WPS 2854 2855 static int wpa_config_process_uuid(const struct global_parse_data *data, 2856 struct wpa_config *config, int line, 2857 const char *pos) 2858 { 2859 char buf[40]; 2860 if (uuid_str2bin(pos, config->uuid)) { 2861 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line); 2862 return -1; 2863 } 2864 uuid_bin2str(config->uuid, buf, sizeof(buf)); 2865 wpa_printf(MSG_DEBUG, "uuid=%s", buf); 2866 return 0; 2867 } 2868 2869 2870 static int wpa_config_process_device_type( 2871 const struct global_parse_data *data, 2872 struct wpa_config *config, int line, const char *pos) 2873 { 2874 return wps_dev_type_str2bin(pos, config->device_type); 2875 } 2876 2877 2878 static int wpa_config_process_os_version(const struct global_parse_data *data, 2879 struct wpa_config *config, int line, 2880 const char *pos) 2881 { 2882 if (hexstr2bin(pos, config->os_version, 4)) { 2883 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line); 2884 return -1; 2885 } 2886 wpa_printf(MSG_DEBUG, "os_version=%08x", 2887 WPA_GET_BE32(config->os_version)); 2888 return 0; 2889 } 2890 2891 2892 static int wpa_config_process_wps_vendor_ext_m1( 2893 const struct global_parse_data *data, 2894 struct wpa_config *config, int line, const char *pos) 2895 { 2896 struct wpabuf *tmp; 2897 int len = os_strlen(pos) / 2; 2898 u8 *p; 2899 2900 if (!len) { 2901 wpa_printf(MSG_ERROR, "Line %d: " 2902 "invalid wps_vendor_ext_m1", line); 2903 return -1; 2904 } 2905 2906 tmp = wpabuf_alloc(len); 2907 if (tmp) { 2908 p = wpabuf_put(tmp, len); 2909 2910 if (hexstr2bin(pos, p, len)) { 2911 wpa_printf(MSG_ERROR, "Line %d: " 2912 "invalid wps_vendor_ext_m1", line); 2913 wpabuf_free(tmp); 2914 return -1; 2915 } 2916 2917 wpabuf_free(config->wps_vendor_ext_m1); 2918 config->wps_vendor_ext_m1 = tmp; 2919 } else { 2920 wpa_printf(MSG_ERROR, "Can not allocate " 2921 "memory for wps_vendor_ext_m1"); 2922 return -1; 2923 } 2924 2925 return 0; 2926 } 2927 2928 #endif /* CONFIG_WPS */ 2929 2930 #ifdef CONFIG_P2P 2931 static int wpa_config_process_sec_device_type( 2932 const struct global_parse_data *data, 2933 struct wpa_config *config, int line, const char *pos) 2934 { 2935 int idx; 2936 2937 if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) { 2938 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type " 2939 "items", line); 2940 return -1; 2941 } 2942 2943 idx = config->num_sec_device_types; 2944 2945 if (wps_dev_type_str2bin(pos, config->sec_device_type[idx])) 2946 return -1; 2947 2948 config->num_sec_device_types++; 2949 return 0; 2950 } 2951 2952 2953 static int wpa_config_process_p2p_pref_chan( 2954 const struct global_parse_data *data, 2955 struct wpa_config *config, int line, const char *pos) 2956 { 2957 struct p2p_channel *pref = NULL, *n; 2958 unsigned int num = 0; 2959 const char *pos2; 2960 u8 op_class, chan; 2961 2962 /* format: class:chan,class:chan,... */ 2963 2964 while (*pos) { 2965 op_class = atoi(pos); 2966 pos2 = os_strchr(pos, ':'); 2967 if (pos2 == NULL) 2968 goto fail; 2969 pos2++; 2970 chan = atoi(pos2); 2971 2972 n = os_realloc_array(pref, num + 1, 2973 sizeof(struct p2p_channel)); 2974 if (n == NULL) 2975 goto fail; 2976 pref = n; 2977 pref[num].op_class = op_class; 2978 pref[num].chan = chan; 2979 num++; 2980 2981 pos = os_strchr(pos2, ','); 2982 if (pos == NULL) 2983 break; 2984 pos++; 2985 } 2986 2987 os_free(config->p2p_pref_chan); 2988 config->p2p_pref_chan = pref; 2989 config->num_p2p_pref_chan = num; 2990 wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs", 2991 (u8 *) config->p2p_pref_chan, 2992 config->num_p2p_pref_chan * sizeof(struct p2p_channel)); 2993 2994 return 0; 2995 2996 fail: 2997 os_free(pref); 2998 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line); 2999 return -1; 3000 } 3001 #endif /* CONFIG_P2P */ 3002 3003 3004 static int wpa_config_process_hessid( 3005 const struct global_parse_data *data, 3006 struct wpa_config *config, int line, const char *pos) 3007 { 3008 if (hwaddr_aton2(pos, config->hessid) < 0) { 3009 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'", 3010 line, pos); 3011 return -1; 3012 } 3013 3014 return 0; 3015 } 3016 3017 3018 static int wpa_config_process_sae_groups( 3019 const struct global_parse_data *data, 3020 struct wpa_config *config, int line, const char *pos) 3021 { 3022 int *groups = wpa_config_parse_int_array(pos); 3023 if (groups == NULL) { 3024 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'", 3025 line, pos); 3026 return -1; 3027 } 3028 3029 os_free(config->sae_groups); 3030 config->sae_groups = groups; 3031 3032 return 0; 3033 } 3034 3035 3036 static int wpa_config_process_ap_vendor_elements( 3037 const struct global_parse_data *data, 3038 struct wpa_config *config, int line, const char *pos) 3039 { 3040 struct wpabuf *tmp; 3041 int len = os_strlen(pos) / 2; 3042 u8 *p; 3043 3044 if (!len) { 3045 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements", 3046 line); 3047 return -1; 3048 } 3049 3050 tmp = wpabuf_alloc(len); 3051 if (tmp) { 3052 p = wpabuf_put(tmp, len); 3053 3054 if (hexstr2bin(pos, p, len)) { 3055 wpa_printf(MSG_ERROR, "Line %d: invalid " 3056 "ap_vendor_elements", line); 3057 wpabuf_free(tmp); 3058 return -1; 3059 } 3060 3061 wpabuf_free(config->ap_vendor_elements); 3062 config->ap_vendor_elements = tmp; 3063 } else { 3064 wpa_printf(MSG_ERROR, "Cannot allocate memory for " 3065 "ap_vendor_elements"); 3066 return -1; 3067 } 3068 3069 return 0; 3070 } 3071 3072 3073 #ifdef OFFSET 3074 #undef OFFSET 3075 #endif /* OFFSET */ 3076 /* OFFSET: Get offset of a variable within the wpa_config structure */ 3077 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v) 3078 3079 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL 3080 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL 3081 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f) 3082 #define INT(f) _INT(f), NULL, NULL 3083 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max 3084 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f) 3085 #define STR(f) _STR(f), NULL, NULL 3086 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max 3087 #define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL 3088 3089 static const struct global_parse_data global_fields[] = { 3090 #ifdef CONFIG_CTRL_IFACE 3091 { STR(ctrl_interface), 0 }, 3092 { STR(ctrl_interface_group), 0 } /* deprecated */, 3093 #endif /* CONFIG_CTRL_IFACE */ 3094 { INT_RANGE(eapol_version, 1, 2), 0 }, 3095 { INT(ap_scan), 0 }, 3096 { INT(disable_scan_offload), 0 }, 3097 { INT(fast_reauth), 0 }, 3098 { STR(opensc_engine_path), 0 }, 3099 { STR(pkcs11_engine_path), 0 }, 3100 { STR(pkcs11_module_path), 0 }, 3101 { STR(pcsc_reader), 0 }, 3102 { STR(pcsc_pin), 0 }, 3103 { STR(driver_param), 0 }, 3104 { INT(dot11RSNAConfigPMKLifetime), 0 }, 3105 { INT(dot11RSNAConfigPMKReauthThreshold), 0 }, 3106 { INT(dot11RSNAConfigSATimeout), 0 }, 3107 #ifndef CONFIG_NO_CONFIG_WRITE 3108 { INT(update_config), 0 }, 3109 #endif /* CONFIG_NO_CONFIG_WRITE */ 3110 { FUNC_NO_VAR(load_dynamic_eap), 0 }, 3111 #ifdef CONFIG_WPS 3112 { FUNC(uuid), CFG_CHANGED_UUID }, 3113 { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME }, 3114 { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING }, 3115 { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING }, 3116 { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING }, 3117 { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING }, 3118 { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE }, 3119 { FUNC(os_version), CFG_CHANGED_OS_VERSION }, 3120 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS }, 3121 { INT_RANGE(wps_cred_processing, 0, 2), 0 }, 3122 { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION }, 3123 #endif /* CONFIG_WPS */ 3124 #ifdef CONFIG_P2P 3125 { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE }, 3126 { INT(p2p_listen_reg_class), 0 }, 3127 { INT(p2p_listen_channel), 0 }, 3128 { INT(p2p_oper_reg_class), 0 }, 3129 { INT(p2p_oper_channel), 0 }, 3130 { INT_RANGE(p2p_go_intent, 0, 15), 0 }, 3131 { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX }, 3132 { INT_RANGE(persistent_reconnect, 0, 1), 0 }, 3133 { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS }, 3134 { INT(p2p_group_idle), 0 }, 3135 { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN }, 3136 { INT(p2p_go_ht40), 0 }, 3137 { INT(p2p_disabled), 0 }, 3138 { INT(p2p_no_group_iface), 0 }, 3139 { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 }, 3140 #endif /* CONFIG_P2P */ 3141 { FUNC(country), CFG_CHANGED_COUNTRY }, 3142 { INT(bss_max_count), 0 }, 3143 { INT(bss_expiration_age), 0 }, 3144 { INT(bss_expiration_scan_count), 0 }, 3145 { INT_RANGE(filter_ssids, 0, 1), 0 }, 3146 { INT_RANGE(filter_rssi, -100, 0), 0 }, 3147 { INT(max_num_sta), 0 }, 3148 { INT_RANGE(disassoc_low_ack, 0, 1), 0 }, 3149 #ifdef CONFIG_HS20 3150 { INT_RANGE(hs20, 0, 1), 0 }, 3151 #endif /* CONFIG_HS20 */ 3152 { INT_RANGE(interworking, 0, 1), 0 }, 3153 { FUNC(hessid), 0 }, 3154 { INT_RANGE(access_network_type, 0, 15), 0 }, 3155 { INT_RANGE(pbc_in_m1, 0, 1), 0 }, 3156 { STR(autoscan), 0 }, 3157 { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff), 3158 CFG_CHANGED_NFC_PASSWORD_TOKEN }, 3159 { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN }, 3160 { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN }, 3161 { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN }, 3162 { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND }, 3163 { INT(p2p_go_max_inactivity), 0 }, 3164 { INT_RANGE(auto_interworking, 0, 1), 0 }, 3165 { INT(okc), 0 }, 3166 { INT(pmf), 0 }, 3167 { FUNC(sae_groups), 0 }, 3168 { INT(dtim_period), 0 }, 3169 { INT(beacon_int), 0 }, 3170 { FUNC(ap_vendor_elements), 0 }, 3171 { INT_RANGE(ignore_old_scan_res, 0, 1), 0 }, 3172 { FUNC(freq_list), 0 }, 3173 { INT(scan_cur_freq), 0 }, 3174 { INT(sched_scan_interval), 0 }, 3175 { INT(tdls_external_control), 0}, 3176 }; 3177 3178 #undef FUNC 3179 #undef _INT 3180 #undef INT 3181 #undef INT_RANGE 3182 #undef _STR 3183 #undef STR 3184 #undef STR_RANGE 3185 #undef BIN 3186 #define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0])) 3187 3188 3189 int wpa_config_process_global(struct wpa_config *config, char *pos, int line) 3190 { 3191 size_t i; 3192 int ret = 0; 3193 3194 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) { 3195 const struct global_parse_data *field = &global_fields[i]; 3196 size_t flen = os_strlen(field->name); 3197 if (os_strncmp(pos, field->name, flen) != 0 || 3198 pos[flen] != '=') 3199 continue; 3200 3201 if (field->parser(field, config, line, pos + flen + 1)) { 3202 wpa_printf(MSG_ERROR, "Line %d: failed to " 3203 "parse '%s'.", line, pos); 3204 ret = -1; 3205 } 3206 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN) 3207 config->wps_nfc_pw_from_config = 1; 3208 config->changed_parameters |= field->changed_flag; 3209 break; 3210 } 3211 if (i == NUM_GLOBAL_FIELDS) { 3212 #ifdef CONFIG_AP 3213 if (os_strncmp(pos, "wmm_ac_", 7) == 0) { 3214 char *tmp = os_strchr(pos, '='); 3215 if (tmp == NULL) { 3216 if (line < 0) 3217 return -1; 3218 wpa_printf(MSG_ERROR, "Line %d: invalid line " 3219 "'%s'", line, pos); 3220 return -1; 3221 } 3222 *tmp++ = '\0'; 3223 if (hostapd_config_wmm_ac(config->wmm_ac_params, pos, 3224 tmp)) { 3225 wpa_printf(MSG_ERROR, "Line %d: invalid WMM " 3226 "AC item", line); 3227 return -1; 3228 } 3229 } 3230 #endif /* CONFIG_AP */ 3231 if (line < 0) 3232 return -1; 3233 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.", 3234 line, pos); 3235 ret = -1; 3236 } 3237 3238 return ret; 3239 } 3240
