config.c revision 34af306c42b7ccf956508e7cd23f0ba90606e360
1/* 2 * WPA Supplicant / Configuration parser and common functions 3 * Copyright (c) 2003-2012, Jouni Malinen <j@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 */ 29struct 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 56static 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 103set: 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 116static 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 132static 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 145static 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 157static 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 177static 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 215static 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 237static 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 259static 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 282static 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 353static 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 380static 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 432static 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 464static 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 543static 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 635static 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 653static 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 669static 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 690static 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 698static 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 719static 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 727static 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 780static 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 826static 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 867static 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 883static 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 900static 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 933static 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 940static 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 949static 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 1022static 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 1057static 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 1137static 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 1173static 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 1205static 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 1215static 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 1225static 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 1235static 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 1246static 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 1255static 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 1262static 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 1269static 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 1276static 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 1286static 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 1341static 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#endif /* CONFIG_P2P */ 1376 1377/* Helper macros for network block parser */ 1378 1379#ifdef OFFSET 1380#undef OFFSET 1381#endif /* OFFSET */ 1382/* OFFSET: Get offset of a variable within the wpa_ssid structure */ 1383#define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v) 1384 1385/* STR: Define a string variable for an ASCII string; f = field name */ 1386#ifdef NO_CONFIG_WRITE 1387#define _STR(f) #f, wpa_config_parse_str, OFFSET(f) 1388#define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f) 1389#else /* NO_CONFIG_WRITE */ 1390#define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f) 1391#define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f) 1392#endif /* NO_CONFIG_WRITE */ 1393#define STR(f) _STR(f), NULL, NULL, NULL, 0 1394#define STRe(f) _STRe(f), NULL, NULL, NULL, 0 1395#define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1 1396#define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1 1397 1398/* STR_LEN: Define a string variable with a separate variable for storing the 1399 * data length. Unlike STR(), this can be used to store arbitrary binary data 1400 * (i.e., even nul termination character). */ 1401#define _STR_LEN(f) _STR(f), OFFSET(f ## _len) 1402#define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len) 1403#define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0 1404#define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0 1405#define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1 1406 1407/* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length 1408 * explicitly specified. */ 1409#define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max) 1410#define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0 1411#define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1 1412 1413#ifdef NO_CONFIG_WRITE 1414#define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0 1415#define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0 1416#else /* NO_CONFIG_WRITE */ 1417#define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \ 1418 OFFSET(f), (void *) 0 1419#define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \ 1420 OFFSET(eap.f), (void *) 0 1421#endif /* NO_CONFIG_WRITE */ 1422 1423/* INT: Define an integer variable */ 1424#define INT(f) _INT(f), NULL, NULL, 0 1425#define INTe(f) _INTe(f), NULL, NULL, 0 1426 1427/* INT_RANGE: Define an integer variable with allowed value range */ 1428#define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0 1429 1430/* FUNC: Define a configuration variable that uses a custom function for 1431 * parsing and writing the value. */ 1432#ifdef NO_CONFIG_WRITE 1433#define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL 1434#else /* NO_CONFIG_WRITE */ 1435#define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \ 1436 NULL, NULL, NULL, NULL 1437#endif /* NO_CONFIG_WRITE */ 1438#define FUNC(f) _FUNC(f), 0 1439#define FUNC_KEY(f) _FUNC(f), 1 1440 1441/* 1442 * Table of network configuration variables. This table is used to parse each 1443 * network configuration variable, e.g., each line in wpa_supplicant.conf file 1444 * that is inside a network block. 1445 * 1446 * This table is generated using the helper macros defined above and with 1447 * generous help from the C pre-processor. The field name is stored as a string 1448 * into .name and for STR and INT types, the offset of the target buffer within 1449 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar 1450 * offset to the field containing the length of the configuration variable. 1451 * .param3 and .param4 can be used to mark the allowed range (length for STR 1452 * and value for INT). 1453 * 1454 * For each configuration line in wpa_supplicant.conf, the parser goes through 1455 * this table and select the entry that matches with the field name. The parser 1456 * function (.parser) is then called to parse the actual value of the field. 1457 * 1458 * This kind of mechanism makes it easy to add new configuration parameters, 1459 * since only one line needs to be added into this table and into the 1460 * struct wpa_ssid definition if the new variable is either a string or 1461 * integer. More complex types will need to use their own parser and writer 1462 * functions. 1463 */ 1464static const struct parse_data ssid_fields[] = { 1465 { STR_RANGE(ssid, 0, MAX_SSID_LEN) }, 1466 { INT_RANGE(scan_ssid, 0, 1) }, 1467 { FUNC(bssid) }, 1468 { FUNC_KEY(psk) }, 1469 { FUNC(proto) }, 1470 { FUNC(key_mgmt) }, 1471 { INT(bg_scan_period) }, 1472 { FUNC(pairwise) }, 1473 { FUNC(group) }, 1474 { FUNC(auth_alg) }, 1475 { FUNC(scan_freq) }, 1476 { FUNC(freq_list) }, 1477#ifdef IEEE8021X_EAPOL 1478 { FUNC(eap) }, 1479 { STR_LENe(identity) }, 1480 { STR_LENe(anonymous_identity) }, 1481 { FUNC_KEY(password) }, 1482 { STRe(ca_cert) }, 1483 { STRe(ca_path) }, 1484 { STRe(client_cert) }, 1485 { STRe(private_key) }, 1486 { STR_KEYe(private_key_passwd) }, 1487 { STRe(dh_file) }, 1488 { STRe(subject_match) }, 1489 { STRe(altsubject_match) }, 1490 { STRe(ca_cert2) }, 1491 { STRe(ca_path2) }, 1492 { STRe(client_cert2) }, 1493 { STRe(private_key2) }, 1494 { STR_KEYe(private_key2_passwd) }, 1495 { STRe(dh_file2) }, 1496 { STRe(subject_match2) }, 1497 { STRe(altsubject_match2) }, 1498 { STRe(phase1) }, 1499 { STRe(phase2) }, 1500 { STRe(pcsc) }, 1501 { STR_KEYe(pin) }, 1502 { STRe(engine_id) }, 1503 { STRe(key_id) }, 1504 { STRe(cert_id) }, 1505 { STRe(ca_cert_id) }, 1506 { STR_KEYe(pin2) }, 1507 { STRe(engine2_id) }, 1508 { STRe(key2_id) }, 1509 { STRe(cert2_id) }, 1510 { STRe(ca_cert2_id) }, 1511 { INTe(engine) }, 1512 { INTe(engine2) }, 1513 { INT(eapol_flags) }, 1514#endif /* IEEE8021X_EAPOL */ 1515 { FUNC_KEY(wep_key0) }, 1516 { FUNC_KEY(wep_key1) }, 1517 { FUNC_KEY(wep_key2) }, 1518 { FUNC_KEY(wep_key3) }, 1519 { INT(wep_tx_keyidx) }, 1520 { INT(priority) }, 1521#ifdef IEEE8021X_EAPOL 1522 { INT(eap_workaround) }, 1523 { STRe(pac_file) }, 1524 { INTe(fragment_size) }, 1525 { INTe(ocsp) }, 1526#endif /* IEEE8021X_EAPOL */ 1527 { INT_RANGE(mode, 0, 4) }, 1528 { INT_RANGE(proactive_key_caching, 0, 1) }, 1529 { INT_RANGE(disabled, 0, 2) }, 1530 { STR(id_str) }, 1531#ifdef CONFIG_IEEE80211W 1532 { INT_RANGE(ieee80211w, 0, 2) }, 1533#endif /* CONFIG_IEEE80211W */ 1534 { INT_RANGE(peerkey, 0, 1) }, 1535 { INT_RANGE(mixed_cell, 0, 1) }, 1536 { INT_RANGE(frequency, 0, 65000) }, 1537 { INT(wpa_ptk_rekey) }, 1538 { STR(bgscan) }, 1539 { INT_RANGE(ignore_broadcast_ssid, 0, 2) }, 1540#ifdef CONFIG_P2P 1541 { FUNC(p2p_client_list) }, 1542#endif /* CONFIG_P2P */ 1543#ifdef CONFIG_HT_OVERRIDES 1544 { INT_RANGE(disable_ht, 0, 1) }, 1545 { INT_RANGE(disable_ht40, -1, 1) }, 1546 { INT_RANGE(disable_sgi, 0, 1) }, 1547 { INT_RANGE(disable_max_amsdu, -1, 1) }, 1548 { INT_RANGE(ampdu_factor, -1, 3) }, 1549 { INT_RANGE(ampdu_density, -1, 7) }, 1550 { STR(ht_mcs) }, 1551#endif /* CONFIG_HT_OVERRIDES */ 1552#ifdef CONFIG_VHT_OVERRIDES 1553 { INT_RANGE(disable_vht, 0, 1) }, 1554 { INT(vht_capa) }, 1555 { INT(vht_capa_mask) }, 1556 { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) }, 1557 { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) }, 1558 { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) }, 1559 { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) }, 1560 { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) }, 1561 { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) }, 1562 { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) }, 1563 { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) }, 1564 { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) }, 1565 { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) }, 1566 { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) }, 1567 { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) }, 1568 { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) }, 1569 { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) }, 1570 { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) }, 1571 { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) }, 1572#endif /* CONFIG_VHT_OVERRIDES */ 1573 { INT(ap_max_inactivity) }, 1574 { INT(dtim_period) }, 1575 { INT(beacon_int) }, 1576}; 1577 1578#undef OFFSET 1579#undef _STR 1580#undef STR 1581#undef STR_KEY 1582#undef _STR_LEN 1583#undef STR_LEN 1584#undef STR_LEN_KEY 1585#undef _STR_RANGE 1586#undef STR_RANGE 1587#undef STR_RANGE_KEY 1588#undef _INT 1589#undef INT 1590#undef INT_RANGE 1591#undef _FUNC 1592#undef FUNC 1593#undef FUNC_KEY 1594#define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0])) 1595 1596 1597/** 1598 * wpa_config_add_prio_network - Add a network to priority lists 1599 * @config: Configuration data from wpa_config_read() 1600 * @ssid: Pointer to the network configuration to be added to the list 1601 * Returns: 0 on success, -1 on failure 1602 * 1603 * This function is used to add a network block to the priority list of 1604 * networks. This must be called for each network when reading in the full 1605 * configuration. In addition, this can be used indirectly when updating 1606 * priorities by calling wpa_config_update_prio_list(). 1607 */ 1608int wpa_config_add_prio_network(struct wpa_config *config, 1609 struct wpa_ssid *ssid) 1610{ 1611 int prio; 1612 struct wpa_ssid *prev, **nlist; 1613 1614 /* 1615 * Add to an existing priority list if one is available for the 1616 * configured priority level for this network. 1617 */ 1618 for (prio = 0; prio < config->num_prio; prio++) { 1619 prev = config->pssid[prio]; 1620 if (prev->priority == ssid->priority) { 1621 while (prev->pnext) 1622 prev = prev->pnext; 1623 prev->pnext = ssid; 1624 return 0; 1625 } 1626 } 1627 1628 /* First network for this priority - add a new priority list */ 1629 nlist = os_realloc_array(config->pssid, config->num_prio + 1, 1630 sizeof(struct wpa_ssid *)); 1631 if (nlist == NULL) 1632 return -1; 1633 1634 for (prio = 0; prio < config->num_prio; prio++) { 1635 if (nlist[prio]->priority < ssid->priority) { 1636 os_memmove(&nlist[prio + 1], &nlist[prio], 1637 (config->num_prio - prio) * 1638 sizeof(struct wpa_ssid *)); 1639 break; 1640 } 1641 } 1642 1643 nlist[prio] = ssid; 1644 config->num_prio++; 1645 config->pssid = nlist; 1646 1647 return 0; 1648} 1649 1650 1651/** 1652 * wpa_config_update_prio_list - Update network priority list 1653 * @config: Configuration data from wpa_config_read() 1654 * Returns: 0 on success, -1 on failure 1655 * 1656 * This function is called to update the priority list of networks in the 1657 * configuration when a network is being added or removed. This is also called 1658 * if a priority for a network is changed. 1659 */ 1660int wpa_config_update_prio_list(struct wpa_config *config) 1661{ 1662 struct wpa_ssid *ssid; 1663 int ret = 0; 1664 1665 os_free(config->pssid); 1666 config->pssid = NULL; 1667 config->num_prio = 0; 1668 1669 ssid = config->ssid; 1670 while (ssid) { 1671 ssid->pnext = NULL; 1672 if (wpa_config_add_prio_network(config, ssid) < 0) 1673 ret = -1; 1674 ssid = ssid->next; 1675 } 1676 1677 return ret; 1678} 1679 1680 1681#ifdef IEEE8021X_EAPOL 1682static void eap_peer_config_free(struct eap_peer_config *eap) 1683{ 1684 os_free(eap->eap_methods); 1685 os_free(eap->identity); 1686 os_free(eap->anonymous_identity); 1687 os_free(eap->password); 1688 os_free(eap->ca_cert); 1689 os_free(eap->ca_path); 1690 os_free(eap->client_cert); 1691 os_free(eap->private_key); 1692 os_free(eap->private_key_passwd); 1693 os_free(eap->dh_file); 1694 os_free(eap->subject_match); 1695 os_free(eap->altsubject_match); 1696 os_free(eap->ca_cert2); 1697 os_free(eap->ca_path2); 1698 os_free(eap->client_cert2); 1699 os_free(eap->private_key2); 1700 os_free(eap->private_key2_passwd); 1701 os_free(eap->dh_file2); 1702 os_free(eap->subject_match2); 1703 os_free(eap->altsubject_match2); 1704 os_free(eap->phase1); 1705 os_free(eap->phase2); 1706 os_free(eap->pcsc); 1707 os_free(eap->pin); 1708 os_free(eap->engine_id); 1709 os_free(eap->key_id); 1710 os_free(eap->cert_id); 1711 os_free(eap->ca_cert_id); 1712 os_free(eap->key2_id); 1713 os_free(eap->cert2_id); 1714 os_free(eap->ca_cert2_id); 1715 os_free(eap->pin2); 1716 os_free(eap->engine2_id); 1717 os_free(eap->otp); 1718 os_free(eap->pending_req_otp); 1719 os_free(eap->pac_file); 1720 os_free(eap->new_password); 1721} 1722#endif /* IEEE8021X_EAPOL */ 1723 1724 1725/** 1726 * wpa_config_free_ssid - Free network/ssid configuration data 1727 * @ssid: Configuration data for the network 1728 * 1729 * This function frees all resources allocated for the network configuration 1730 * data. 1731 */ 1732void wpa_config_free_ssid(struct wpa_ssid *ssid) 1733{ 1734 os_free(ssid->ssid); 1735 os_free(ssid->passphrase); 1736 os_free(ssid->ext_psk); 1737#ifdef IEEE8021X_EAPOL 1738 eap_peer_config_free(&ssid->eap); 1739#endif /* IEEE8021X_EAPOL */ 1740 os_free(ssid->id_str); 1741 os_free(ssid->scan_freq); 1742 os_free(ssid->freq_list); 1743 os_free(ssid->bgscan); 1744 os_free(ssid->p2p_client_list); 1745#ifdef CONFIG_HT_OVERRIDES 1746 os_free(ssid->ht_mcs); 1747#endif /* CONFIG_HT_OVERRIDES */ 1748 os_free(ssid); 1749} 1750 1751 1752void wpa_config_free_cred(struct wpa_cred *cred) 1753{ 1754 os_free(cred->realm); 1755 os_free(cred->username); 1756 os_free(cred->password); 1757 os_free(cred->ca_cert); 1758 os_free(cred->client_cert); 1759 os_free(cred->private_key); 1760 os_free(cred->private_key_passwd); 1761 os_free(cred->imsi); 1762 os_free(cred->milenage); 1763 os_free(cred->domain); 1764 os_free(cred->eap_method); 1765 os_free(cred->phase1); 1766 os_free(cred->phase2); 1767 os_free(cred->excluded_ssid); 1768 os_free(cred); 1769} 1770 1771 1772/** 1773 * wpa_config_free - Free configuration data 1774 * @config: Configuration data from wpa_config_read() 1775 * 1776 * This function frees all resources allocated for the configuration data by 1777 * wpa_config_read(). 1778 */ 1779void wpa_config_free(struct wpa_config *config) 1780{ 1781#ifndef CONFIG_NO_CONFIG_BLOBS 1782 struct wpa_config_blob *blob, *prevblob; 1783#endif /* CONFIG_NO_CONFIG_BLOBS */ 1784 struct wpa_ssid *ssid, *prev = NULL; 1785 struct wpa_cred *cred, *cprev; 1786 1787 ssid = config->ssid; 1788 while (ssid) { 1789 prev = ssid; 1790 ssid = ssid->next; 1791 wpa_config_free_ssid(prev); 1792 } 1793 1794 cred = config->cred; 1795 while (cred) { 1796 cprev = cred; 1797 cred = cred->next; 1798 wpa_config_free_cred(cprev); 1799 } 1800 1801#ifndef CONFIG_NO_CONFIG_BLOBS 1802 blob = config->blobs; 1803 prevblob = NULL; 1804 while (blob) { 1805 prevblob = blob; 1806 blob = blob->next; 1807 wpa_config_free_blob(prevblob); 1808 } 1809#endif /* CONFIG_NO_CONFIG_BLOBS */ 1810 1811 wpabuf_free(config->wps_vendor_ext_m1); 1812 os_free(config->ctrl_interface); 1813 os_free(config->ctrl_interface_group); 1814 os_free(config->opensc_engine_path); 1815 os_free(config->pkcs11_engine_path); 1816 os_free(config->pkcs11_module_path); 1817 os_free(config->pcsc_reader); 1818 os_free(config->pcsc_pin); 1819 os_free(config->driver_param); 1820 os_free(config->device_name); 1821 os_free(config->manufacturer); 1822 os_free(config->model_name); 1823 os_free(config->model_number); 1824 os_free(config->serial_number); 1825 os_free(config->config_methods); 1826 os_free(config->p2p_ssid_postfix); 1827 os_free(config->pssid); 1828 os_free(config->p2p_pref_chan); 1829 os_free(config->autoscan); 1830 os_free(config->freq_list); 1831 wpabuf_free(config->wps_nfc_dh_pubkey); 1832 wpabuf_free(config->wps_nfc_dh_privkey); 1833 wpabuf_free(config->wps_nfc_dev_pw); 1834 os_free(config->ext_password_backend); 1835 os_free(config->sae_groups); 1836 wpabuf_free(config->ap_vendor_elements); 1837 os_free(config); 1838} 1839 1840 1841/** 1842 * wpa_config_foreach_network - Iterate over each configured network 1843 * @config: Configuration data from wpa_config_read() 1844 * @func: Callback function to process each network 1845 * @arg: Opaque argument to pass to callback function 1846 * 1847 * Iterate over the set of configured networks calling the specified 1848 * function for each item. We guard against callbacks removing the 1849 * supplied network. 1850 */ 1851void wpa_config_foreach_network(struct wpa_config *config, 1852 void (*func)(void *, struct wpa_ssid *), 1853 void *arg) 1854{ 1855 struct wpa_ssid *ssid, *next; 1856 1857 ssid = config->ssid; 1858 while (ssid) { 1859 next = ssid->next; 1860 func(arg, ssid); 1861 ssid = next; 1862 } 1863} 1864 1865 1866/** 1867 * wpa_config_get_network - Get configured network based on id 1868 * @config: Configuration data from wpa_config_read() 1869 * @id: Unique network id to search for 1870 * Returns: Network configuration or %NULL if not found 1871 */ 1872struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id) 1873{ 1874 struct wpa_ssid *ssid; 1875 1876 ssid = config->ssid; 1877 while (ssid) { 1878 if (id == ssid->id) 1879 break; 1880 ssid = ssid->next; 1881 } 1882 1883 return ssid; 1884} 1885 1886 1887/** 1888 * wpa_config_add_network - Add a new network with empty configuration 1889 * @config: Configuration data from wpa_config_read() 1890 * Returns: The new network configuration or %NULL if operation failed 1891 */ 1892struct wpa_ssid * wpa_config_add_network(struct wpa_config *config) 1893{ 1894 int id; 1895 struct wpa_ssid *ssid, *last = NULL; 1896 1897 id = -1; 1898 ssid = config->ssid; 1899 while (ssid) { 1900 if (ssid->id > id) 1901 id = ssid->id; 1902 last = ssid; 1903 ssid = ssid->next; 1904 } 1905 id++; 1906 1907 ssid = os_zalloc(sizeof(*ssid)); 1908 if (ssid == NULL) 1909 return NULL; 1910 ssid->id = id; 1911 if (last) 1912 last->next = ssid; 1913 else 1914 config->ssid = ssid; 1915 1916 wpa_config_update_prio_list(config); 1917 1918 return ssid; 1919} 1920 1921 1922/** 1923 * wpa_config_remove_network - Remove a configured network based on id 1924 * @config: Configuration data from wpa_config_read() 1925 * @id: Unique network id to search for 1926 * Returns: 0 on success, or -1 if the network was not found 1927 */ 1928int wpa_config_remove_network(struct wpa_config *config, int id) 1929{ 1930 struct wpa_ssid *ssid, *prev = NULL; 1931 1932 ssid = config->ssid; 1933 while (ssid) { 1934 if (id == ssid->id) 1935 break; 1936 prev = ssid; 1937 ssid = ssid->next; 1938 } 1939 1940 if (ssid == NULL) 1941 return -1; 1942 1943 if (prev) 1944 prev->next = ssid->next; 1945 else 1946 config->ssid = ssid->next; 1947 1948 wpa_config_update_prio_list(config); 1949 wpa_config_free_ssid(ssid); 1950 return 0; 1951} 1952 1953 1954/** 1955 * wpa_config_set_network_defaults - Set network default values 1956 * @ssid: Pointer to network configuration data 1957 */ 1958void wpa_config_set_network_defaults(struct wpa_ssid *ssid) 1959{ 1960 ssid->proto = DEFAULT_PROTO; 1961 ssid->pairwise_cipher = DEFAULT_PAIRWISE; 1962 ssid->group_cipher = DEFAULT_GROUP; 1963 ssid->key_mgmt = DEFAULT_KEY_MGMT; 1964 ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; 1965#ifdef IEEE8021X_EAPOL 1966 ssid->eapol_flags = DEFAULT_EAPOL_FLAGS; 1967 ssid->eap_workaround = DEFAULT_EAP_WORKAROUND; 1968 ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE; 1969#endif /* IEEE8021X_EAPOL */ 1970#ifdef CONFIG_HT_OVERRIDES 1971 ssid->disable_ht = DEFAULT_DISABLE_HT; 1972 ssid->disable_ht40 = DEFAULT_DISABLE_HT40; 1973 ssid->disable_sgi = DEFAULT_DISABLE_SGI; 1974 ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU; 1975 ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR; 1976 ssid->ampdu_density = DEFAULT_AMPDU_DENSITY; 1977#endif /* CONFIG_HT_OVERRIDES */ 1978#ifdef CONFIG_VHT_OVERRIDES 1979 ssid->vht_rx_mcs_nss_1 = -1; 1980 ssid->vht_rx_mcs_nss_2 = -1; 1981 ssid->vht_rx_mcs_nss_3 = -1; 1982 ssid->vht_rx_mcs_nss_4 = -1; 1983 ssid->vht_rx_mcs_nss_5 = -1; 1984 ssid->vht_rx_mcs_nss_6 = -1; 1985 ssid->vht_rx_mcs_nss_7 = -1; 1986 ssid->vht_rx_mcs_nss_8 = -1; 1987 ssid->vht_tx_mcs_nss_1 = -1; 1988 ssid->vht_tx_mcs_nss_2 = -1; 1989 ssid->vht_tx_mcs_nss_3 = -1; 1990 ssid->vht_tx_mcs_nss_4 = -1; 1991 ssid->vht_tx_mcs_nss_5 = -1; 1992 ssid->vht_tx_mcs_nss_6 = -1; 1993 ssid->vht_tx_mcs_nss_7 = -1; 1994 ssid->vht_tx_mcs_nss_8 = -1; 1995#endif /* CONFIG_VHT_OVERRIDES */ 1996 ssid->proactive_key_caching = -1; 1997#ifdef CONFIG_IEEE80211W 1998 ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT; 1999#endif /* CONFIG_IEEE80211W */ 2000} 2001 2002 2003/** 2004 * wpa_config_set - Set a variable in network configuration 2005 * @ssid: Pointer to network configuration data 2006 * @var: Variable name, e.g., "ssid" 2007 * @value: Variable value 2008 * @line: Line number in configuration file or 0 if not used 2009 * Returns: 0 on success, -1 on failure 2010 * 2011 * This function can be used to set network configuration variables based on 2012 * both the configuration file and management interface input. The value 2013 * parameter must be in the same format as the text-based configuration file is 2014 * using. For example, strings are using double quotation marks. 2015 */ 2016int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value, 2017 int line) 2018{ 2019 size_t i; 2020 int ret = 0; 2021 2022 if (ssid == NULL || var == NULL || value == NULL) 2023 return -1; 2024 2025 for (i = 0; i < NUM_SSID_FIELDS; i++) { 2026 const struct parse_data *field = &ssid_fields[i]; 2027 if (os_strcmp(var, field->name) != 0) 2028 continue; 2029 2030 if (field->parser(field, ssid, line, value)) { 2031 if (line) { 2032 wpa_printf(MSG_ERROR, "Line %d: failed to " 2033 "parse %s '%s'.", line, var, value); 2034 } 2035 ret = -1; 2036 } 2037 break; 2038 } 2039 if (i == NUM_SSID_FIELDS) { 2040 if (line) { 2041 wpa_printf(MSG_ERROR, "Line %d: unknown network field " 2042 "'%s'.", line, var); 2043 } 2044 ret = -1; 2045 } 2046 2047 return ret; 2048} 2049 2050 2051int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var, 2052 const char *value) 2053{ 2054 size_t len; 2055 char *buf; 2056 int ret; 2057 2058 len = os_strlen(value); 2059 buf = os_malloc(len + 3); 2060 if (buf == NULL) 2061 return -1; 2062 buf[0] = '"'; 2063 os_memcpy(buf + 1, value, len); 2064 buf[len + 1] = '"'; 2065 buf[len + 2] = '\0'; 2066 ret = wpa_config_set(ssid, var, buf, 0); 2067 os_free(buf); 2068 return ret; 2069} 2070 2071 2072/** 2073 * wpa_config_get_all - Get all options from network configuration 2074 * @ssid: Pointer to network configuration data 2075 * @get_keys: Determines if keys/passwords will be included in returned list 2076 * (if they may be exported) 2077 * Returns: %NULL terminated list of all set keys and their values in the form 2078 * of [key1, val1, key2, val2, ... , NULL] 2079 * 2080 * This function can be used to get list of all configured network properties. 2081 * The caller is responsible for freeing the returned list and all its 2082 * elements. 2083 */ 2084char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys) 2085{ 2086 const struct parse_data *field; 2087 char *key, *value; 2088 size_t i; 2089 char **props; 2090 int fields_num; 2091 2092 get_keys = get_keys && ssid->export_keys; 2093 2094 props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *)); 2095 if (!props) 2096 return NULL; 2097 2098 fields_num = 0; 2099 for (i = 0; i < NUM_SSID_FIELDS; i++) { 2100 field = &ssid_fields[i]; 2101 if (field->key_data && !get_keys) 2102 continue; 2103 value = field->writer(field, ssid); 2104 if (value == NULL) 2105 continue; 2106 if (os_strlen(value) == 0) { 2107 os_free(value); 2108 continue; 2109 } 2110 2111 key = os_strdup(field->name); 2112 if (key == NULL) { 2113 os_free(value); 2114 goto err; 2115 } 2116 2117 props[fields_num * 2] = key; 2118 props[fields_num * 2 + 1] = value; 2119 2120 fields_num++; 2121 } 2122 2123 return props; 2124 2125err: 2126 value = *props; 2127 while (value) 2128 os_free(value++); 2129 os_free(props); 2130 return NULL; 2131} 2132 2133 2134#ifndef NO_CONFIG_WRITE 2135/** 2136 * wpa_config_get - Get a variable in network configuration 2137 * @ssid: Pointer to network configuration data 2138 * @var: Variable name, e.g., "ssid" 2139 * Returns: Value of the variable or %NULL on failure 2140 * 2141 * This function can be used to get network configuration variables. The 2142 * returned value is a copy of the configuration variable in text format, i.e,. 2143 * the same format that the text-based configuration file and wpa_config_set() 2144 * are using for the value. The caller is responsible for freeing the returned 2145 * value. 2146 */ 2147char * wpa_config_get(struct wpa_ssid *ssid, const char *var) 2148{ 2149 size_t i; 2150 2151 if (ssid == NULL || var == NULL) 2152 return NULL; 2153 2154 for (i = 0; i < NUM_SSID_FIELDS; i++) { 2155 const struct parse_data *field = &ssid_fields[i]; 2156 if (os_strcmp(var, field->name) == 0) 2157 return field->writer(field, ssid); 2158 } 2159 2160 return NULL; 2161} 2162 2163 2164/** 2165 * wpa_config_get_no_key - Get a variable in network configuration (no keys) 2166 * @ssid: Pointer to network configuration data 2167 * @var: Variable name, e.g., "ssid" 2168 * Returns: Value of the variable or %NULL on failure 2169 * 2170 * This function can be used to get network configuration variable like 2171 * wpa_config_get(). The only difference is that this functions does not expose 2172 * key/password material from the configuration. In case a key/password field 2173 * is requested, the returned value is an empty string or %NULL if the variable 2174 * is not set or "*" if the variable is set (regardless of its value). The 2175 * returned value is a copy of the configuration variable in text format, i.e,. 2176 * the same format that the text-based configuration file and wpa_config_set() 2177 * are using for the value. The caller is responsible for freeing the returned 2178 * value. 2179 */ 2180char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var) 2181{ 2182 size_t i; 2183 2184 if (ssid == NULL || var == NULL) 2185 return NULL; 2186 2187 for (i = 0; i < NUM_SSID_FIELDS; i++) { 2188 const struct parse_data *field = &ssid_fields[i]; 2189 if (os_strcmp(var, field->name) == 0) { 2190 char *res = field->writer(field, ssid); 2191 if (field->key_data) { 2192 if (res && res[0]) { 2193 wpa_printf(MSG_DEBUG, "Do not allow " 2194 "key_data field to be " 2195 "exposed"); 2196 os_free(res); 2197 return os_strdup("*"); 2198 } 2199 2200 os_free(res); 2201 return NULL; 2202 } 2203 return res; 2204 } 2205 } 2206 2207 return NULL; 2208} 2209#endif /* NO_CONFIG_WRITE */ 2210 2211 2212/** 2213 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID 2214 * @ssid: Pointer to network configuration data 2215 * 2216 * This function must be called to update WPA PSK when either SSID or the 2217 * passphrase has changed for the network configuration. 2218 */ 2219void wpa_config_update_psk(struct wpa_ssid *ssid) 2220{ 2221#ifndef CONFIG_NO_PBKDF2 2222 pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096, 2223 ssid->psk, PMK_LEN); 2224 wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)", 2225 ssid->psk, PMK_LEN); 2226 ssid->psk_set = 1; 2227#endif /* CONFIG_NO_PBKDF2 */ 2228} 2229 2230 2231int wpa_config_set_cred(struct wpa_cred *cred, const char *var, 2232 const char *value, int line) 2233{ 2234 char *val; 2235 size_t len; 2236 2237 if (os_strcmp(var, "priority") == 0) { 2238 cred->priority = atoi(value); 2239 return 0; 2240 } 2241 2242 if (os_strcmp(var, "pcsc") == 0) { 2243 cred->pcsc = atoi(value); 2244 return 0; 2245 } 2246 2247 if (os_strcmp(var, "eap") == 0) { 2248 struct eap_method_type method; 2249 method.method = eap_peer_get_type(value, &method.vendor); 2250 if (method.vendor == EAP_VENDOR_IETF && 2251 method.method == EAP_TYPE_NONE) { 2252 wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' " 2253 "for a credential", line, value); 2254 return -1; 2255 } 2256 os_free(cred->eap_method); 2257 cred->eap_method = os_malloc(sizeof(*cred->eap_method)); 2258 if (cred->eap_method == NULL) 2259 return -1; 2260 os_memcpy(cred->eap_method, &method, sizeof(method)); 2261 return 0; 2262 } 2263 2264 if (os_strcmp(var, "password") == 0 && 2265 os_strncmp(value, "ext:", 4) == 0) { 2266 os_free(cred->password); 2267 cred->password = os_strdup(value); 2268 cred->ext_password = 1; 2269 return 0; 2270 } 2271 2272 val = wpa_config_parse_string(value, &len); 2273 if (val == NULL) { 2274 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string " 2275 "value '%s'.", line, var, value); 2276 return -1; 2277 } 2278 2279 if (os_strcmp(var, "realm") == 0) { 2280 os_free(cred->realm); 2281 cred->realm = val; 2282 return 0; 2283 } 2284 2285 if (os_strcmp(var, "username") == 0) { 2286 os_free(cred->username); 2287 cred->username = val; 2288 return 0; 2289 } 2290 2291 if (os_strcmp(var, "password") == 0) { 2292 os_free(cred->password); 2293 cred->password = val; 2294 cred->ext_password = 0; 2295 return 0; 2296 } 2297 2298 if (os_strcmp(var, "ca_cert") == 0) { 2299 os_free(cred->ca_cert); 2300 cred->ca_cert = val; 2301 return 0; 2302 } 2303 2304 if (os_strcmp(var, "client_cert") == 0) { 2305 os_free(cred->client_cert); 2306 cred->client_cert = val; 2307 return 0; 2308 } 2309 2310 if (os_strcmp(var, "private_key") == 0) { 2311 os_free(cred->private_key); 2312 cred->private_key = val; 2313 return 0; 2314 } 2315 2316 if (os_strcmp(var, "private_key_passwd") == 0) { 2317 os_free(cred->private_key_passwd); 2318 cred->private_key_passwd = val; 2319 return 0; 2320 } 2321 2322 if (os_strcmp(var, "imsi") == 0) { 2323 os_free(cred->imsi); 2324 cred->imsi = val; 2325 return 0; 2326 } 2327 2328 if (os_strcmp(var, "milenage") == 0) { 2329 os_free(cred->milenage); 2330 cred->milenage = val; 2331 return 0; 2332 } 2333 2334 if (os_strcmp(var, "domain") == 0) { 2335 os_free(cred->domain); 2336 cred->domain = val; 2337 return 0; 2338 } 2339 2340 if (os_strcmp(var, "phase1") == 0) { 2341 os_free(cred->phase1); 2342 cred->phase1 = val; 2343 return 0; 2344 } 2345 2346 if (os_strcmp(var, "phase2") == 0) { 2347 os_free(cred->phase2); 2348 cred->phase2 = val; 2349 return 0; 2350 } 2351 2352 if (os_strcmp(var, "roaming_consortium") == 0) { 2353 if (len < 3 || len > sizeof(cred->roaming_consortium)) { 2354 wpa_printf(MSG_ERROR, "Line %d: invalid " 2355 "roaming_consortium length %d (3..15 " 2356 "expected)", line, (int) len); 2357 os_free(val); 2358 return -1; 2359 } 2360 os_memcpy(cred->roaming_consortium, val, len); 2361 cred->roaming_consortium_len = len; 2362 os_free(val); 2363 return 0; 2364 } 2365 2366 if (os_strcmp(var, "excluded_ssid") == 0) { 2367 struct excluded_ssid *e; 2368 2369 if (len > MAX_SSID_LEN) { 2370 wpa_printf(MSG_ERROR, "Line %d: invalid " 2371 "excluded_ssid length %d", line, (int) len); 2372 os_free(val); 2373 return -1; 2374 } 2375 2376 e = os_realloc_array(cred->excluded_ssid, 2377 cred->num_excluded_ssid + 1, 2378 sizeof(struct excluded_ssid)); 2379 if (e == NULL) { 2380 os_free(val); 2381 return -1; 2382 } 2383 cred->excluded_ssid = e; 2384 2385 e = &cred->excluded_ssid[cred->num_excluded_ssid++]; 2386 os_memcpy(e->ssid, val, len); 2387 e->ssid_len = len; 2388 2389 os_free(val); 2390 2391 return 0; 2392 } 2393 2394 if (line) { 2395 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.", 2396 line, var); 2397 } 2398 2399 os_free(val); 2400 2401 return -1; 2402} 2403 2404 2405struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id) 2406{ 2407 struct wpa_cred *cred; 2408 2409 cred = config->cred; 2410 while (cred) { 2411 if (id == cred->id) 2412 break; 2413 cred = cred->next; 2414 } 2415 2416 return cred; 2417} 2418 2419 2420struct wpa_cred * wpa_config_add_cred(struct wpa_config *config) 2421{ 2422 int id; 2423 struct wpa_cred *cred, *last = NULL; 2424 2425 id = -1; 2426 cred = config->cred; 2427 while (cred) { 2428 if (cred->id > id) 2429 id = cred->id; 2430 last = cred; 2431 cred = cred->next; 2432 } 2433 id++; 2434 2435 cred = os_zalloc(sizeof(*cred)); 2436 if (cred == NULL) 2437 return NULL; 2438 cred->id = id; 2439 if (last) 2440 last->next = cred; 2441 else 2442 config->cred = cred; 2443 2444 return cred; 2445} 2446 2447 2448int wpa_config_remove_cred(struct wpa_config *config, int id) 2449{ 2450 struct wpa_cred *cred, *prev = NULL; 2451 2452 cred = config->cred; 2453 while (cred) { 2454 if (id == cred->id) 2455 break; 2456 prev = cred; 2457 cred = cred->next; 2458 } 2459 2460 if (cred == NULL) 2461 return -1; 2462 2463 if (prev) 2464 prev->next = cred->next; 2465 else 2466 config->cred = cred->next; 2467 2468 wpa_config_free_cred(cred); 2469 return 0; 2470} 2471 2472 2473#ifndef CONFIG_NO_CONFIG_BLOBS 2474/** 2475 * wpa_config_get_blob - Get a named configuration blob 2476 * @config: Configuration data from wpa_config_read() 2477 * @name: Name of the blob 2478 * Returns: Pointer to blob data or %NULL if not found 2479 */ 2480const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config, 2481 const char *name) 2482{ 2483 struct wpa_config_blob *blob = config->blobs; 2484 2485 while (blob) { 2486 if (os_strcmp(blob->name, name) == 0) 2487 return blob; 2488 blob = blob->next; 2489 } 2490 return NULL; 2491} 2492 2493 2494/** 2495 * wpa_config_set_blob - Set or add a named configuration blob 2496 * @config: Configuration data from wpa_config_read() 2497 * @blob: New value for the blob 2498 * 2499 * Adds a new configuration blob or replaces the current value of an existing 2500 * blob. 2501 */ 2502void wpa_config_set_blob(struct wpa_config *config, 2503 struct wpa_config_blob *blob) 2504{ 2505 wpa_config_remove_blob(config, blob->name); 2506 blob->next = config->blobs; 2507 config->blobs = blob; 2508} 2509 2510 2511/** 2512 * wpa_config_free_blob - Free blob data 2513 * @blob: Pointer to blob to be freed 2514 */ 2515void wpa_config_free_blob(struct wpa_config_blob *blob) 2516{ 2517 if (blob) { 2518 os_free(blob->name); 2519 os_free(blob->data); 2520 os_free(blob); 2521 } 2522} 2523 2524 2525/** 2526 * wpa_config_remove_blob - Remove a named configuration blob 2527 * @config: Configuration data from wpa_config_read() 2528 * @name: Name of the blob to remove 2529 * Returns: 0 if blob was removed or -1 if blob was not found 2530 */ 2531int wpa_config_remove_blob(struct wpa_config *config, const char *name) 2532{ 2533 struct wpa_config_blob *pos = config->blobs, *prev = NULL; 2534 2535 while (pos) { 2536 if (os_strcmp(pos->name, name) == 0) { 2537 if (prev) 2538 prev->next = pos->next; 2539 else 2540 config->blobs = pos->next; 2541 wpa_config_free_blob(pos); 2542 return 0; 2543 } 2544 prev = pos; 2545 pos = pos->next; 2546 } 2547 2548 return -1; 2549} 2550#endif /* CONFIG_NO_CONFIG_BLOBS */ 2551 2552 2553/** 2554 * wpa_config_alloc_empty - Allocate an empty configuration 2555 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain 2556 * socket 2557 * @driver_param: Driver parameters 2558 * Returns: Pointer to allocated configuration data or %NULL on failure 2559 */ 2560struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface, 2561 const char *driver_param) 2562{ 2563 struct wpa_config *config; 2564 const int aCWmin = 4, aCWmax = 10; 2565 const struct hostapd_wmm_ac_params ac_bk = 2566 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */ 2567 const struct hostapd_wmm_ac_params ac_be = 2568 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */ 2569 const struct hostapd_wmm_ac_params ac_vi = /* video traffic */ 2570 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 }; 2571 const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */ 2572 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 }; 2573 2574 config = os_zalloc(sizeof(*config)); 2575 if (config == NULL) 2576 return NULL; 2577 config->eapol_version = DEFAULT_EAPOL_VERSION; 2578 config->ap_scan = DEFAULT_AP_SCAN; 2579 config->fast_reauth = DEFAULT_FAST_REAUTH; 2580 config->p2p_go_intent = DEFAULT_P2P_GO_INTENT; 2581 config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS; 2582 config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY; 2583 config->bss_max_count = DEFAULT_BSS_MAX_COUNT; 2584 config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE; 2585 config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT; 2586 config->max_num_sta = DEFAULT_MAX_NUM_STA; 2587 config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE; 2588 config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ; 2589 config->wmm_ac_params[0] = ac_be; 2590 config->wmm_ac_params[1] = ac_bk; 2591 config->wmm_ac_params[2] = ac_vi; 2592 config->wmm_ac_params[3] = ac_vo; 2593 2594 if (ctrl_interface) 2595 config->ctrl_interface = os_strdup(ctrl_interface); 2596 if (driver_param) 2597 config->driver_param = os_strdup(driver_param); 2598 2599 return config; 2600} 2601 2602 2603#ifndef CONFIG_NO_STDOUT_DEBUG 2604/** 2605 * wpa_config_debug_dump_networks - Debug dump of configured networks 2606 * @config: Configuration data from wpa_config_read() 2607 */ 2608void wpa_config_debug_dump_networks(struct wpa_config *config) 2609{ 2610 int prio; 2611 struct wpa_ssid *ssid; 2612 2613 for (prio = 0; prio < config->num_prio; prio++) { 2614 ssid = config->pssid[prio]; 2615 wpa_printf(MSG_DEBUG, "Priority group %d", 2616 ssid->priority); 2617 while (ssid) { 2618 wpa_printf(MSG_DEBUG, " id=%d ssid='%s'", 2619 ssid->id, 2620 wpa_ssid_txt(ssid->ssid, ssid->ssid_len)); 2621 ssid = ssid->pnext; 2622 } 2623 } 2624} 2625#endif /* CONFIG_NO_STDOUT_DEBUG */ 2626 2627 2628struct global_parse_data { 2629 char *name; 2630 int (*parser)(const struct global_parse_data *data, 2631 struct wpa_config *config, int line, const char *value); 2632 void *param1, *param2, *param3; 2633 unsigned int changed_flag; 2634}; 2635 2636 2637static int wpa_global_config_parse_int(const struct global_parse_data *data, 2638 struct wpa_config *config, int line, 2639 const char *pos) 2640{ 2641 int val, *dst; 2642 char *end; 2643 2644 dst = (int *) (((u8 *) config) + (long) data->param1); 2645 val = strtol(pos, &end, 0); 2646 if (*end) { 2647 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"", 2648 line, pos); 2649 return -1; 2650 } 2651 *dst = val; 2652 2653 wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst); 2654 2655 if (data->param2 && *dst < (long) data->param2) { 2656 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d " 2657 "min_value=%ld)", line, data->name, *dst, 2658 (long) data->param2); 2659 *dst = (long) data->param2; 2660 return -1; 2661 } 2662 2663 if (data->param3 && *dst > (long) data->param3) { 2664 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d " 2665 "max_value=%ld)", line, data->name, *dst, 2666 (long) data->param3); 2667 *dst = (long) data->param3; 2668 return -1; 2669 } 2670 2671 return 0; 2672} 2673 2674 2675static int wpa_global_config_parse_str(const struct global_parse_data *data, 2676 struct wpa_config *config, int line, 2677 const char *pos) 2678{ 2679 size_t len; 2680 char **dst, *tmp; 2681 2682 len = os_strlen(pos); 2683 if (data->param2 && len < (size_t) data->param2) { 2684 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu " 2685 "min_len=%ld)", line, data->name, 2686 (unsigned long) len, (long) data->param2); 2687 return -1; 2688 } 2689 2690 if (data->param3 && len > (size_t) data->param3) { 2691 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu " 2692 "max_len=%ld)", line, data->name, 2693 (unsigned long) len, (long) data->param3); 2694 return -1; 2695 } 2696 2697 tmp = os_strdup(pos); 2698 if (tmp == NULL) 2699 return -1; 2700 2701 dst = (char **) (((u8 *) config) + (long) data->param1); 2702 os_free(*dst); 2703 *dst = tmp; 2704 wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst); 2705 2706 return 0; 2707} 2708 2709 2710static int wpa_global_config_parse_bin(const struct global_parse_data *data, 2711 struct wpa_config *config, int line, 2712 const char *pos) 2713{ 2714 size_t len; 2715 struct wpabuf **dst, *tmp; 2716 2717 len = os_strlen(pos); 2718 if (len & 0x01) 2719 return -1; 2720 2721 tmp = wpabuf_alloc(len / 2); 2722 if (tmp == NULL) 2723 return -1; 2724 2725 if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) { 2726 wpabuf_free(tmp); 2727 return -1; 2728 } 2729 2730 dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1); 2731 wpabuf_free(*dst); 2732 *dst = tmp; 2733 wpa_printf(MSG_DEBUG, "%s", data->name); 2734 2735 return 0; 2736} 2737 2738 2739static int wpa_config_process_freq_list(const struct global_parse_data *data, 2740 struct wpa_config *config, int line, 2741 const char *value) 2742{ 2743 int *freqs; 2744 2745 freqs = wpa_config_parse_int_array(value); 2746 if (freqs == NULL) 2747 return -1; 2748 os_free(config->freq_list); 2749 config->freq_list = freqs; 2750 return 0; 2751} 2752 2753 2754static int wpa_config_process_country(const struct global_parse_data *data, 2755 struct wpa_config *config, int line, 2756 const char *pos) 2757{ 2758 if (!pos[0] || !pos[1]) { 2759 wpa_printf(MSG_DEBUG, "Invalid country set"); 2760 return -1; 2761 } 2762 config->country[0] = pos[0]; 2763 config->country[1] = pos[1]; 2764 wpa_printf(MSG_DEBUG, "country='%c%c'", 2765 config->country[0], config->country[1]); 2766 return 0; 2767} 2768 2769 2770static int wpa_config_process_load_dynamic_eap( 2771 const struct global_parse_data *data, struct wpa_config *config, 2772 int line, const char *so) 2773{ 2774 int ret; 2775 wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so); 2776 ret = eap_peer_method_load(so); 2777 if (ret == -2) { 2778 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not " 2779 "reloading."); 2780 } else if (ret) { 2781 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP " 2782 "method '%s'.", line, so); 2783 return -1; 2784 } 2785 2786 return 0; 2787} 2788 2789 2790#ifdef CONFIG_WPS 2791 2792static int wpa_config_process_uuid(const struct global_parse_data *data, 2793 struct wpa_config *config, int line, 2794 const char *pos) 2795{ 2796 char buf[40]; 2797 if (uuid_str2bin(pos, config->uuid)) { 2798 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line); 2799 return -1; 2800 } 2801 uuid_bin2str(config->uuid, buf, sizeof(buf)); 2802 wpa_printf(MSG_DEBUG, "uuid=%s", buf); 2803 return 0; 2804} 2805 2806 2807static int wpa_config_process_device_type( 2808 const struct global_parse_data *data, 2809 struct wpa_config *config, int line, const char *pos) 2810{ 2811 return wps_dev_type_str2bin(pos, config->device_type); 2812} 2813 2814 2815static int wpa_config_process_os_version(const struct global_parse_data *data, 2816 struct wpa_config *config, int line, 2817 const char *pos) 2818{ 2819 if (hexstr2bin(pos, config->os_version, 4)) { 2820 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line); 2821 return -1; 2822 } 2823 wpa_printf(MSG_DEBUG, "os_version=%08x", 2824 WPA_GET_BE32(config->os_version)); 2825 return 0; 2826} 2827 2828 2829static int wpa_config_process_wps_vendor_ext_m1( 2830 const struct global_parse_data *data, 2831 struct wpa_config *config, int line, const char *pos) 2832{ 2833 struct wpabuf *tmp; 2834 int len = os_strlen(pos) / 2; 2835 u8 *p; 2836 2837 if (!len) { 2838 wpa_printf(MSG_ERROR, "Line %d: " 2839 "invalid wps_vendor_ext_m1", line); 2840 return -1; 2841 } 2842 2843 tmp = wpabuf_alloc(len); 2844 if (tmp) { 2845 p = wpabuf_put(tmp, len); 2846 2847 if (hexstr2bin(pos, p, len)) { 2848 wpa_printf(MSG_ERROR, "Line %d: " 2849 "invalid wps_vendor_ext_m1", line); 2850 wpabuf_free(tmp); 2851 return -1; 2852 } 2853 2854 wpabuf_free(config->wps_vendor_ext_m1); 2855 config->wps_vendor_ext_m1 = tmp; 2856 } else { 2857 wpa_printf(MSG_ERROR, "Can not allocate " 2858 "memory for wps_vendor_ext_m1"); 2859 return -1; 2860 } 2861 2862 return 0; 2863} 2864 2865#endif /* CONFIG_WPS */ 2866 2867#ifdef CONFIG_P2P 2868static int wpa_config_process_sec_device_type( 2869 const struct global_parse_data *data, 2870 struct wpa_config *config, int line, const char *pos) 2871{ 2872 int idx; 2873 2874 if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) { 2875 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type " 2876 "items", line); 2877 return -1; 2878 } 2879 2880 idx = config->num_sec_device_types; 2881 2882 if (wps_dev_type_str2bin(pos, config->sec_device_type[idx])) 2883 return -1; 2884 2885 config->num_sec_device_types++; 2886 return 0; 2887} 2888 2889 2890static int wpa_config_process_p2p_pref_chan( 2891 const struct global_parse_data *data, 2892 struct wpa_config *config, int line, const char *pos) 2893{ 2894 struct p2p_channel *pref = NULL, *n; 2895 unsigned int num = 0; 2896 const char *pos2; 2897 u8 op_class, chan; 2898 2899 /* format: class:chan,class:chan,... */ 2900 2901 while (*pos) { 2902 op_class = atoi(pos); 2903 pos2 = os_strchr(pos, ':'); 2904 if (pos2 == NULL) 2905 goto fail; 2906 pos2++; 2907 chan = atoi(pos2); 2908 2909 n = os_realloc_array(pref, num + 1, 2910 sizeof(struct p2p_channel)); 2911 if (n == NULL) 2912 goto fail; 2913 pref = n; 2914 pref[num].op_class = op_class; 2915 pref[num].chan = chan; 2916 num++; 2917 2918 pos = os_strchr(pos2, ','); 2919 if (pos == NULL) 2920 break; 2921 pos++; 2922 } 2923 2924 os_free(config->p2p_pref_chan); 2925 config->p2p_pref_chan = pref; 2926 config->num_p2p_pref_chan = num; 2927 wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs", 2928 (u8 *) config->p2p_pref_chan, 2929 config->num_p2p_pref_chan * sizeof(struct p2p_channel)); 2930 2931 return 0; 2932 2933fail: 2934 os_free(pref); 2935 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line); 2936 return -1; 2937} 2938#endif /* CONFIG_P2P */ 2939 2940 2941static int wpa_config_process_hessid( 2942 const struct global_parse_data *data, 2943 struct wpa_config *config, int line, const char *pos) 2944{ 2945 if (hwaddr_aton2(pos, config->hessid) < 0) { 2946 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'", 2947 line, pos); 2948 return -1; 2949 } 2950 2951 return 0; 2952} 2953 2954 2955static int wpa_config_process_sae_groups( 2956 const struct global_parse_data *data, 2957 struct wpa_config *config, int line, const char *pos) 2958{ 2959 int *groups = wpa_config_parse_int_array(pos); 2960 if (groups == NULL) { 2961 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'", 2962 line, pos); 2963 return -1; 2964 } 2965 2966 os_free(config->sae_groups); 2967 config->sae_groups = groups; 2968 2969 return 0; 2970} 2971 2972 2973static int wpa_config_process_ap_vendor_elements( 2974 const struct global_parse_data *data, 2975 struct wpa_config *config, int line, const char *pos) 2976{ 2977 struct wpabuf *tmp; 2978 int len = os_strlen(pos) / 2; 2979 u8 *p; 2980 2981 if (!len) { 2982 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements", 2983 line); 2984 return -1; 2985 } 2986 2987 tmp = wpabuf_alloc(len); 2988 if (tmp) { 2989 p = wpabuf_put(tmp, len); 2990 2991 if (hexstr2bin(pos, p, len)) { 2992 wpa_printf(MSG_ERROR, "Line %d: invalid " 2993 "ap_vendor_elements", line); 2994 wpabuf_free(tmp); 2995 return -1; 2996 } 2997 2998 wpabuf_free(config->ap_vendor_elements); 2999 config->ap_vendor_elements = tmp; 3000 } else { 3001 wpa_printf(MSG_ERROR, "Cannot allocate memory for " 3002 "ap_vendor_elements"); 3003 return -1; 3004 } 3005 3006 return 0; 3007} 3008 3009 3010#ifdef OFFSET 3011#undef OFFSET 3012#endif /* OFFSET */ 3013/* OFFSET: Get offset of a variable within the wpa_config structure */ 3014#define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v) 3015 3016#define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL 3017#define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL 3018#define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f) 3019#define INT(f) _INT(f), NULL, NULL 3020#define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max 3021#define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f) 3022#define STR(f) _STR(f), NULL, NULL 3023#define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max 3024#define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL 3025 3026static const struct global_parse_data global_fields[] = { 3027#ifdef CONFIG_CTRL_IFACE 3028 { STR(ctrl_interface), 0 }, 3029 { STR(ctrl_interface_group), 0 } /* deprecated */, 3030#endif /* CONFIG_CTRL_IFACE */ 3031 { INT_RANGE(eapol_version, 1, 2), 0 }, 3032 { INT(ap_scan), 0 }, 3033 { INT(disable_scan_offload), 0 }, 3034 { INT(fast_reauth), 0 }, 3035 { STR(opensc_engine_path), 0 }, 3036 { STR(pkcs11_engine_path), 0 }, 3037 { STR(pkcs11_module_path), 0 }, 3038 { STR(pcsc_reader), 0 }, 3039 { STR(pcsc_pin), 0 }, 3040 { STR(driver_param), 0 }, 3041 { INT(dot11RSNAConfigPMKLifetime), 0 }, 3042 { INT(dot11RSNAConfigPMKReauthThreshold), 0 }, 3043 { INT(dot11RSNAConfigSATimeout), 0 }, 3044#ifndef CONFIG_NO_CONFIG_WRITE 3045 { INT(update_config), 0 }, 3046#endif /* CONFIG_NO_CONFIG_WRITE */ 3047 { FUNC_NO_VAR(load_dynamic_eap), 0 }, 3048#ifdef CONFIG_WPS 3049 { FUNC(uuid), CFG_CHANGED_UUID }, 3050 { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME }, 3051 { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING }, 3052 { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING }, 3053 { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING }, 3054 { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING }, 3055 { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE }, 3056 { FUNC(os_version), CFG_CHANGED_OS_VERSION }, 3057 { STR(config_methods), CFG_CHANGED_CONFIG_METHODS }, 3058 { INT_RANGE(wps_cred_processing, 0, 2), 0 }, 3059 { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION }, 3060#endif /* CONFIG_WPS */ 3061#ifdef CONFIG_P2P 3062 { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE }, 3063 { INT(p2p_listen_reg_class), 0 }, 3064 { INT(p2p_listen_channel), 0 }, 3065 { INT(p2p_oper_reg_class), 0 }, 3066 { INT(p2p_oper_channel), 0 }, 3067 { INT_RANGE(p2p_go_intent, 0, 15), 0 }, 3068 { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX }, 3069 { INT_RANGE(persistent_reconnect, 0, 1), 0 }, 3070 { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS }, 3071 { INT(p2p_group_idle), 0 }, 3072 { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN }, 3073 { INT(p2p_go_ht40), 0 }, 3074 { INT(p2p_disabled), 0 }, 3075 { INT(p2p_no_group_iface), 0 }, 3076 { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 }, 3077#endif /* CONFIG_P2P */ 3078 { FUNC(country), CFG_CHANGED_COUNTRY }, 3079 { INT(bss_max_count), 0 }, 3080 { INT(bss_expiration_age), 0 }, 3081 { INT(bss_expiration_scan_count), 0 }, 3082 { INT_RANGE(filter_ssids, 0, 1), 0 }, 3083 { INT_RANGE(filter_rssi, -100, 0), 0 }, 3084 { INT(max_num_sta), 0 }, 3085 { INT_RANGE(disassoc_low_ack, 0, 1), 0 }, 3086#ifdef CONFIG_HS20 3087 { INT_RANGE(hs20, 0, 1), 0 }, 3088#endif /* CONFIG_HS20 */ 3089 { INT_RANGE(interworking, 0, 1), 0 }, 3090 { FUNC(hessid), 0 }, 3091 { INT_RANGE(access_network_type, 0, 15), 0 }, 3092 { INT_RANGE(pbc_in_m1, 0, 1), 0 }, 3093 { STR(autoscan), 0 }, 3094 { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff), 3095 CFG_CHANGED_NFC_PASSWORD_TOKEN }, 3096 { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN }, 3097 { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN }, 3098 { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN }, 3099 { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND }, 3100 { INT(p2p_go_max_inactivity), 0 }, 3101 { INT_RANGE(auto_interworking, 0, 1), 0 }, 3102 { INT(okc), 0 }, 3103 { INT(pmf), 0 }, 3104 { FUNC(sae_groups), 0 }, 3105 { INT(dtim_period), 0 }, 3106 { INT(beacon_int), 0 }, 3107 { FUNC(ap_vendor_elements), 0 }, 3108 { INT_RANGE(ignore_old_scan_res, 0, 1), 0 }, 3109 { FUNC(freq_list), 0 }, 3110 { INT(scan_cur_freq), 0 }, 3111 { INT(sched_scan_interval), 0 }, 3112}; 3113 3114#undef FUNC 3115#undef _INT 3116#undef INT 3117#undef INT_RANGE 3118#undef _STR 3119#undef STR 3120#undef STR_RANGE 3121#undef BIN 3122#define NUM_GLOBAL_FIELDS (sizeof(global_fields) / sizeof(global_fields[0])) 3123 3124 3125int wpa_config_process_global(struct wpa_config *config, char *pos, int line) 3126{ 3127 size_t i; 3128 int ret = 0; 3129 3130 for (i = 0; i < NUM_GLOBAL_FIELDS; i++) { 3131 const struct global_parse_data *field = &global_fields[i]; 3132 size_t flen = os_strlen(field->name); 3133 if (os_strncmp(pos, field->name, flen) != 0 || 3134 pos[flen] != '=') 3135 continue; 3136 3137 if (field->parser(field, config, line, pos + flen + 1)) { 3138 wpa_printf(MSG_ERROR, "Line %d: failed to " 3139 "parse '%s'.", line, pos); 3140 ret = -1; 3141 } 3142 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN) 3143 config->wps_nfc_pw_from_config = 1; 3144 config->changed_parameters |= field->changed_flag; 3145 break; 3146 } 3147 if (i == NUM_GLOBAL_FIELDS) { 3148#ifdef CONFIG_AP 3149 if (os_strncmp(pos, "wmm_ac_", 7) == 0) { 3150 char *tmp = os_strchr(pos, '='); 3151 if (tmp == NULL) { 3152 if (line < 0) 3153 return -1; 3154 wpa_printf(MSG_ERROR, "Line %d: invalid line " 3155 "'%s'", line, pos); 3156 return -1; 3157 } 3158 *tmp++ = '\0'; 3159 if (hostapd_config_wmm_ac(config->wmm_ac_params, pos, 3160 tmp)) { 3161 wpa_printf(MSG_ERROR, "Line %d: invalid WMM " 3162 "AC item", line); 3163 return -1; 3164 } 3165 } 3166#endif /* CONFIG_AP */ 3167 if (line < 0) 3168 return -1; 3169 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.", 3170 line, pos); 3171 ret = -1; 3172 } 3173 3174 return ret; 3175} 3176