wpa_supplicant/config.c

   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 "utils/ip_addr.h"
  14 #include "crypto/sha1.h"
  15 #include "rsn_supp/wpa.h"
  16 #include "eap_peer/eap.h"
  17 #include "p2p/p2p.h"
  18 #include "config.h"
  19
  20
  21 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
  22 #define NO_CONFIG_WRITE
  23 #endif
  24
  25 /*
  26  * Structure for network configuration parsing. This data is used to implement
  27  * a generic parser for each network block variable. The table of configuration
  28  * variables is defined below in this file (ssid_fields[]).
  29  */
  30 struct parse_data {
  31         /* Configuration variable name */
  32         char *name;
  33
  34         /* Parser function for this variable */
  35         int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
  36                       int line, const char *value);
  37
  38 #ifndef NO_CONFIG_WRITE
  39         /* Writer function (i.e., to get the variable in text format from
  40          * internal presentation). */
  41         char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
  42 #endif /* NO_CONFIG_WRITE */
  43
  44         /* Variable specific parameters for the parser. */
  45         void *param1, *param2, *param3, *param4;
  46
  47         /* 0 = this variable can be included in debug output and ctrl_iface
  48          * 1 = this variable contains key/private data and it must not be
  49          *     included in debug output unless explicitly requested. In
  50          *     addition, this variable will not be readable through the
  51          *     ctrl_iface.
  52          */
  53         int key_data;
  54 };
  55
  56
  57 static int wpa_config_parse_str(const struct parse_data *data,
  58                                 struct wpa_ssid *ssid,
  59                                 int line, const char *value)
  60 {
  61         size_t res_len, *dst_len;
  62         char **dst, *tmp;
  63
  64         if (os_strcmp(value, "NULL") == 0) {
  65                 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
  66                            data->name);
  67                 tmp = NULL;
  68                 res_len = 0;
  69                 goto set;
  70         }
  71
  72         tmp = wpa_config_parse_string(value, &res_len);
  73         if (tmp == NULL) {
  74                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
  75                            line, data->name,
  76                            data->key_data ? "[KEY DATA REMOVED]" : value);
  77                 return -1;
  78         }
  79
  80         if (data->key_data) {
  81                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
  82                                       (u8 *) tmp, res_len);
  83         } else {
  84                 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
  85                                   (u8 *) tmp, res_len);
  86         }
  87
  88         if (data->param3 && res_len < (size_t) data->param3) {
  89                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
  90                            "min_len=%ld)", line, data->name,
  91                            (unsigned long) res_len, (long) data->param3);
  92                 os_free(tmp);
  93                 return -1;
  94         }
  95
  96         if (data->param4 && res_len > (size_t) data->param4) {
  97                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
  98                            "max_len=%ld)", line, data->name,
  99                            (unsigned long) res_len, (long) data->param4);
 100                 os_free(tmp);
 101                 return -1;
 102         }
 103
 104 set:
 105         dst = (char **) (((u8 *) ssid) + (long) data->param1);
 106         dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
 107         os_free(*dst);
 108         *dst = tmp;
 109         if (data->param2)
 110                 *dst_len = res_len;
 111
 112         return 0;
 113 }
 114
 115
 116 #ifndef NO_CONFIG_WRITE
 117 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
 118 {
 119         char *buf;
 120
 121         buf = os_malloc(len + 3);
 122         if (buf == NULL)
 123                 return NULL;
 124         buf[0] = '"';
 125         os_memcpy(buf + 1, value, len);
 126         buf[len + 1] = '"';
 127         buf[len + 2] = '\0';
 128
 129         return buf;
 130 }
 131
 132
 133 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
 134 {
 135         char *buf;
 136
 137         buf = os_zalloc(2 * len + 1);
 138         if (buf == NULL)
 139                 return NULL;
 140         wpa_snprintf_hex(buf, 2 * len + 1, value, len);
 141
 142         return buf;
 143 }
 144
 145
 146 static char * wpa_config_write_string(const u8 *value, size_t len)
 147 {
 148         if (value == NULL)
 149                 return NULL;
 150
 151         if (is_hex(value, len))
 152                 return wpa_config_write_string_hex(value, len);
 153         else
 154                 return wpa_config_write_string_ascii(value, len);
 155 }
 156
 157
 158 static char * wpa_config_write_str(const struct parse_data *data,
 159                                    struct wpa_ssid *ssid)
 160 {
 161         size_t len;
 162         char **src;
 163
 164         src = (char **) (((u8 *) ssid) + (long) data->param1);
 165         if (*src == NULL)
 166                 return NULL;
 167
 168         if (data->param2)
 169                 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
 170         else
 171                 len = os_strlen(*src);
 172
 173         return wpa_config_write_string((const u8 *) *src, len);
 174 }
 175 #endif /* NO_CONFIG_WRITE */
 176
 177
 178 static int wpa_config_parse_int(const struct parse_data *data,
 179                                 struct wpa_ssid *ssid,
 180                                 int line, const char *value)
 181 {
 182         int val, *dst;
 183         char *end;
 184
 185         dst = (int *) (((u8 *) ssid) + (long) data->param1);
 186         val = strtol(value, &end, 0);
 187         if (*end) {
 188                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
 189                            line, value);
 190                 return -1;
 191         }
 192         *dst = val;
 193         wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
 194
 195         if (data->param3 && *dst < (long) data->param3) {
 196                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
 197                            "min_value=%ld)", line, data->name, *dst,
 198                            (long) data->param3);
 199                 *dst = (long) data->param3;
 200                 return -1;
 201         }
 202
 203         if (data->param4 && *dst > (long) data->param4) {
 204                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
 205                            "max_value=%ld)", line, data->name, *dst,
 206                            (long) data->param4);
 207                 *dst = (long) data->param4;
 208                 return -1;
 209         }
 210
 211         return 0;
 212 }
 213
 214
 215 #ifndef NO_CONFIG_WRITE
 216 static char * wpa_config_write_int(const struct parse_data *data,
 217                                    struct wpa_ssid *ssid)
 218 {
 219         int *src, res;
 220         char *value;
 221
 222         src = (int *) (((u8 *) ssid) + (long) data->param1);
 223
 224         value = os_malloc(20);
 225         if (value == NULL)
 226                 return NULL;
 227         res = os_snprintf(value, 20, "%d", *src);
 228         if (os_snprintf_error(20, res)) {
 229                 os_free(value);
 230                 return NULL;
 231         }
 232         value[20 - 1] = '\0';
 233         return value;
 234 }
 235 #endif /* NO_CONFIG_WRITE */
 236
 237
 238 static int wpa_config_parse_addr_list(const struct parse_data *data,
 239                                       int line, const char *value,
 240                                       u8 **list, size_t *num, char *name,
 241                                       u8 abort_on_error, u8 masked)
 242 {
 243         const char *pos;
 244         u8 *buf, *n, addr[2 * ETH_ALEN];
 245         size_t count;
 246
 247         buf = NULL;
 248         count = 0;
 249
 250         pos = value;
 251         while (pos && *pos) {
 252                 while (*pos == ' ')
 253                         pos++;
 254
 255                 if (hwaddr_masked_aton(pos, addr, &addr[ETH_ALEN], masked)) {
 256                         if (abort_on_error || count == 0) {
 257                                 wpa_printf(MSG_ERROR,
 258                                            "Line %d: Invalid %s address '%s'",
 259                                            line, name, value);
 260                                 os_free(buf);
 261                                 return -1;
 262                         }
 263                         /* continue anyway since this could have been from a
 264                          * truncated configuration file line */
 265                         wpa_printf(MSG_INFO,
 266                                    "Line %d: Ignore likely truncated %s address '%s'",
 267                                    line, name, pos);
 268                 } else {
 269                         n = os_realloc_array(buf, count + 1, 2 * ETH_ALEN);
 270                         if (n == NULL) {
 271                                 os_free(buf);
 272                                 return -1;
 273                         }
 274                         buf = n;
 275                         os_memmove(buf + 2 * ETH_ALEN, buf,
 276                                    count * 2 * ETH_ALEN);
 277                         os_memcpy(buf, addr, 2 * ETH_ALEN);
 278                         count++;
 279                         wpa_printf(MSG_MSGDUMP,
 280                                    "%s: addr=" MACSTR " mask=" MACSTR,
 281                                    name, MAC2STR(addr),
 282                                    MAC2STR(&addr[ETH_ALEN]));
 283                 }
 284
 285                 pos = os_strchr(pos, ' ');
 286         }
 287
 288         os_free(*list);
 289         *list = buf;
 290         *num = count;
 291
 292         return 0;
 293 }
 294
 295
 296 #ifndef NO_CONFIG_WRITE
 297 static char * wpa_config_write_addr_list(const struct parse_data *data,
 298                                          const u8 *list, size_t num, char *name)
 299 {
 300         char *value, *end, *pos;
 301         int res;
 302         size_t i;
 303
 304         if (list == NULL || num == 0)
 305                 return NULL;
 306
 307         value = os_malloc(2 * 20 * num);
 308         if (value == NULL)
 309                 return NULL;
 310         pos = value;
 311         end = value + 2 * 20 * num;
 312
 313         for (i = num; i > 0; i--) {
 314                 const u8 *a = list + (i - 1) * 2 * ETH_ALEN;
 315                 const u8 *m = a + ETH_ALEN;
 316
 317                 if (i < num)
 318                         *pos++ = ' ';
 319                 res = hwaddr_mask_txt(pos, end - pos, a, m);
 320                 if (res < 0) {
 321                         os_free(value);
 322                         return NULL;
 323                 }
 324                 pos += res;
 325         }
 326
 327         return value;
 328 }
 329 #endif /* NO_CONFIG_WRITE */
 330
 331 static int wpa_config_parse_bssid(const struct parse_data *data,
 332                                   struct wpa_ssid *ssid, int line,
 333                                   const char *value)
 334 {
 335         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
 336             os_strcmp(value, "any") == 0) {
 337                 ssid->bssid_set = 0;
 338                 wpa_printf(MSG_MSGDUMP, "BSSID any");
 339                 return 0;
 340         }
 341         if (hwaddr_aton(value, ssid->bssid)) {
 342                 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
 343                            line, value);
 344                 return -1;
 345         }
 346         ssid->bssid_set = 1;
 347         wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
 348         return 0;
 349 }
 350
 351
 352 #ifndef NO_CONFIG_WRITE
 353 static char * wpa_config_write_bssid(const struct parse_data *data,
 354                                      struct wpa_ssid *ssid)
 355 {
 356         char *value;
 357         int res;
 358
 359         if (!ssid->bssid_set)
 360                 return NULL;
 361
 362         value = os_malloc(20);
 363         if (value == NULL)
 364                 return NULL;
 365         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
 366         if (os_snprintf_error(20, res)) {
 367                 os_free(value);
 368                 return NULL;
 369         }
 370         value[20 - 1] = '\0';
 371         return value;
 372 }
 373 #endif /* NO_CONFIG_WRITE */
 374
 375
 376 static int wpa_config_parse_bssid_blacklist(const struct parse_data *data,
 377                                             struct wpa_ssid *ssid, int line,
 378                                             const char *value)
 379 {
 380         return wpa_config_parse_addr_list(data, line, value,
 381                                           &ssid->bssid_blacklist,
 382                                           &ssid->num_bssid_blacklist,
 383                                           "bssid_blacklist", 1, 1);
 384 }
 385
 386
 387 #ifndef NO_CONFIG_WRITE
 388 static char * wpa_config_write_bssid_blacklist(const struct parse_data *data,
 389                                                struct wpa_ssid *ssid)
 390 {
 391         return wpa_config_write_addr_list(data, ssid->bssid_blacklist,
 392                                           ssid->num_bssid_blacklist,
 393                                           "bssid_blacklist");
 394 }
 395 #endif /* NO_CONFIG_WRITE */
 396
 397
 398 static int wpa_config_parse_bssid_whitelist(const struct parse_data *data,
 399                                             struct wpa_ssid *ssid, int line,
 400                                             const char *value)
 401 {
 402         return wpa_config_parse_addr_list(data, line, value,
 403                                           &ssid->bssid_whitelist,
 404                                           &ssid->num_bssid_whitelist,
 405                                           "bssid_whitelist", 1, 1);
 406 }
 407
 408
 409 #ifndef NO_CONFIG_WRITE
 410 static char * wpa_config_write_bssid_whitelist(const struct parse_data *data,
 411                                                struct wpa_ssid *ssid)
 412 {
 413         return wpa_config_write_addr_list(data, ssid->bssid_whitelist,
 414                                           ssid->num_bssid_whitelist,
 415                                           "bssid_whitelist");
 416 }
 417 #endif /* NO_CONFIG_WRITE */
 418
 419
 420 static int wpa_config_parse_psk(const struct parse_data *data,
 421                                 struct wpa_ssid *ssid, int line,
 422                                 const char *value)
 423 {
 424 #ifdef CONFIG_EXT_PASSWORD
 425         if (os_strncmp(value, "ext:", 4) == 0) {
 426                 str_clear_free(ssid->passphrase);
 427                 ssid->passphrase = NULL;
 428                 ssid->psk_set = 0;
 429                 os_free(ssid->ext_psk);
 430                 ssid->ext_psk = os_strdup(value + 4);
 431                 if (ssid->ext_psk == NULL)
 432                         return -1;
 433                 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
 434                            ssid->ext_psk);
 435                 return 0;
 436         }
 437 #endif /* CONFIG_EXT_PASSWORD */
 438
 439         if (*value == '"') {
 440 #ifndef CONFIG_NO_PBKDF2
 441                 const char *pos;
 442                 size_t len;
 443
 444                 value++;
 445                 pos = os_strrchr(value, '"');
 446                 if (pos)
 447                         len = pos - value;
 448                 else
 449                         len = os_strlen(value);
 450                 if (len < 8 || len > 63) {
 451                         wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
 452                                    "length %lu (expected: 8..63) '%s'.",
 453                                    line, (unsigned long) len, value);
 454                         return -1;
 455                 }
 456                 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
 457                                       (u8 *) value, len);
 458                 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
 459                     os_memcmp(ssid->passphrase, value, len) == 0)
 460                         return 0;
 461                 ssid->psk_set = 0;
 462                 str_clear_free(ssid->passphrase);
 463                 ssid->passphrase = dup_binstr(value, len);
 464                 if (ssid->passphrase == NULL)
 465                         return -1;
 466                 return 0;
 467 #else /* CONFIG_NO_PBKDF2 */
 468                 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
 469                            "supported.", line);
 470                 return -1;
 471 #endif /* CONFIG_NO_PBKDF2 */
 472         }
 473
 474         if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
 475             value[PMK_LEN * 2] != '\0') {
 476                 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
 477                            line, value);
 478                 return -1;
 479         }
 480
 481         str_clear_free(ssid->passphrase);
 482         ssid->passphrase = NULL;
 483
 484         ssid->psk_set = 1;
 485         wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
 486         return 0;
 487 }
 488
 489
 490 #ifndef NO_CONFIG_WRITE
 491 static char * wpa_config_write_psk(const struct parse_data *data,
 492                                    struct wpa_ssid *ssid)
 493 {
 494 #ifdef CONFIG_EXT_PASSWORD
 495         if (ssid->ext_psk) {
 496                 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
 497                 char *buf = os_malloc(len);
 498                 int res;
 499
 500                 if (buf == NULL)
 501                         return NULL;
 502                 res = os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
 503                 if (os_snprintf_error(len, res)) {
 504                         os_free(buf);
 505                         buf = NULL;
 506                 }
 507                 return buf;
 508         }
 509 #endif /* CONFIG_EXT_PASSWORD */
 510
 511         if (ssid->passphrase)
 512                 return wpa_config_write_string_ascii(
 513                         (const u8 *) ssid->passphrase,
 514                         os_strlen(ssid->passphrase));
 515
 516         if (ssid->psk_set)
 517                 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
 518
 519         return NULL;
 520 }
 521 #endif /* NO_CONFIG_WRITE */
 522
 523
 524 static int wpa_config_parse_proto(const struct parse_data *data,
 525                                   struct wpa_ssid *ssid, int line,
 526                                   const char *value)
 527 {
 528         int val = 0, last, errors = 0;
 529         char *start, *end, *buf;
 530
 531         buf = os_strdup(value);
 532         if (buf == NULL)
 533                 return -1;
 534         start = buf;
 535
 536         while (*start != '\0') {
 537                 while (*start == ' ' || *start == '\t')
 538                         start++;
 539                 if (*start == '\0')
 540                         break;
 541                 end = start;
 542                 while (*end != ' ' && *end != '\t' && *end != '\0')
 543                         end++;
 544                 last = *end == '\0';
 545                 *end = '\0';
 546                 if (os_strcmp(start, "WPA") == 0)
 547                         val |= WPA_PROTO_WPA;
 548                 else if (os_strcmp(start, "RSN") == 0 ||
 549                          os_strcmp(start, "WPA2") == 0)
 550                         val |= WPA_PROTO_RSN;
 551                 else if (os_strcmp(start, "OSEN") == 0)
 552                         val |= WPA_PROTO_OSEN;
 553                 else {
 554                         wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
 555                                    line, start);
 556                         errors++;
 557                 }
 558
 559                 if (last)
 560                         break;
 561                 start = end + 1;
 562         }
 563         os_free(buf);
 564
 565         if (val == 0) {
 566                 wpa_printf(MSG_ERROR,
 567                            "Line %d: no proto values configured.", line);
 568                 errors++;
 569         }
 570
 571         wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
 572         ssid->proto = val;
 573         return errors ? -1 : 0;
 574 }
 575
 576
 577 #ifndef NO_CONFIG_WRITE
 578 static char * wpa_config_write_proto(const struct parse_data *data,
 579                                      struct wpa_ssid *ssid)
 580 {
 581         int ret;
 582         char *buf, *pos, *end;
 583
 584         pos = buf = os_zalloc(20);
 585         if (buf == NULL)
 586                 return NULL;
 587         end = buf + 20;
 588
 589         if (ssid->proto & WPA_PROTO_WPA) {
 590                 ret = os_snprintf(pos, end - pos, "%sWPA",
 591                                   pos == buf ? "" : " ");
 592                 if (os_snprintf_error(end - pos, ret))
 593                         return buf;
 594                 pos += ret;
 595         }
 596
 597         if (ssid->proto & WPA_PROTO_RSN) {
 598                 ret = os_snprintf(pos, end - pos, "%sRSN",
 599                                   pos == buf ? "" : " ");
 600                 if (os_snprintf_error(end - pos, ret))
 601                         return buf;
 602                 pos += ret;
 603         }
 604
 605         if (ssid->proto & WPA_PROTO_OSEN) {
 606                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 607                                   pos == buf ? "" : " ");
 608                 if (os_snprintf_error(end - pos, ret))
 609                         return buf;
 610                 pos += ret;
 611         }
 612
 613         if (pos == buf) {
 614                 os_free(buf);
 615                 buf = NULL;
 616         }
 617
 618         return buf;
 619 }
 620 #endif /* NO_CONFIG_WRITE */
 621
 622
 623 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
 624                                      struct wpa_ssid *ssid, int line,
 625                                      const char *value)
 626 {
 627         int val = 0, last, errors = 0;
 628         char *start, *end, *buf;
 629
 630         buf = os_strdup(value);
 631         if (buf == NULL)
 632                 return -1;
 633         start = buf;
 634
 635         while (*start != '\0') {
 636                 while (*start == ' ' || *start == '\t')
 637                         start++;
 638                 if (*start == '\0')
 639                         break;
 640                 end = start;
 641                 while (*end != ' ' && *end != '\t' && *end != '\0')
 642                         end++;
 643                 last = *end == '\0';
 644                 *end = '\0';
 645                 if (os_strcmp(start, "WPA-PSK") == 0)
 646                         val |= WPA_KEY_MGMT_PSK;
 647                 else if (os_strcmp(start, "WPA-EAP") == 0)
 648                         val |= WPA_KEY_MGMT_IEEE8021X;
 649                 else if (os_strcmp(start, "IEEE8021X") == 0)
 650                         val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
 651                 else if (os_strcmp(start, "NONE") == 0)
 652                         val |= WPA_KEY_MGMT_NONE;
 653                 else if (os_strcmp(start, "WPA-NONE") == 0)
 654                         val |= WPA_KEY_MGMT_WPA_NONE;
 655 #ifdef CONFIG_IEEE80211R
 656                 else if (os_strcmp(start, "FT-PSK") == 0)
 657                         val |= WPA_KEY_MGMT_FT_PSK;
 658                 else if (os_strcmp(start, "FT-EAP") == 0)
 659                         val |= WPA_KEY_MGMT_FT_IEEE8021X;
 660 #endif /* CONFIG_IEEE80211R */
 661 #ifdef CONFIG_IEEE80211W
 662                 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
 663                         val |= WPA_KEY_MGMT_PSK_SHA256;
 664                 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
 665                         val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
 666 #endif /* CONFIG_IEEE80211W */
 667 #ifdef CONFIG_WPS
 668                 else if (os_strcmp(start, "WPS") == 0)
 669                         val |= WPA_KEY_MGMT_WPS;
 670 #endif /* CONFIG_WPS */
 671 #ifdef CONFIG_SAE
 672                 else if (os_strcmp(start, "SAE") == 0)
 673                         val |= WPA_KEY_MGMT_SAE;
 674                 else if (os_strcmp(start, "FT-SAE") == 0)
 675                         val |= WPA_KEY_MGMT_FT_SAE;
 676 #endif /* CONFIG_SAE */
 677 #ifdef CONFIG_HS20
 678                 else if (os_strcmp(start, "OSEN") == 0)
 679                         val |= WPA_KEY_MGMT_OSEN;
 680 #endif /* CONFIG_HS20 */
 681                 else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
 682                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
 683                 else {
 684                         wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
 685                                    line, start);
 686                         errors++;
 687                 }
 688
 689                 if (last)
 690                         break;
 691                 start = end + 1;
 692         }
 693         os_free(buf);
 694
 695         if (val == 0) {
 696                 wpa_printf(MSG_ERROR,
 697                            "Line %d: no key_mgmt values configured.", line);
 698                 errors++;
 699         }
 700
 701         wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
 702         ssid->key_mgmt = val;
 703         return errors ? -1 : 0;
 704 }
 705
 706
 707 #ifndef NO_CONFIG_WRITE
 708 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
 709                                         struct wpa_ssid *ssid)
 710 {
 711         char *buf, *pos, *end;
 712         int ret;
 713
 714         pos = buf = os_zalloc(100);
 715         if (buf == NULL)
 716                 return NULL;
 717         end = buf + 100;
 718
 719         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
 720                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
 721                                   pos == buf ? "" : " ");
 722                 if (os_snprintf_error(end - pos, ret)) {
 723                         end[-1] = '\0';
 724                         return buf;
 725                 }
 726                 pos += ret;
 727         }
 728
 729         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
 730                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
 731                                   pos == buf ? "" : " ");
 732                 if (os_snprintf_error(end - pos, ret)) {
 733                         end[-1] = '\0';
 734                         return buf;
 735                 }
 736                 pos += ret;
 737         }
 738
 739         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 740                 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
 741                                   pos == buf ? "" : " ");
 742                 if (os_snprintf_error(end - pos, ret)) {
 743                         end[-1] = '\0';
 744                         return buf;
 745                 }
 746                 pos += ret;
 747         }
 748
 749         if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
 750                 ret = os_snprintf(pos, end - pos, "%sNONE",
 751                                   pos == buf ? "" : " ");
 752                 if (os_snprintf_error(end - pos, ret)) {
 753                         end[-1] = '\0';
 754                         return buf;
 755                 }
 756                 pos += ret;
 757         }
 758
 759         if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
 760                 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
 761                                   pos == buf ? "" : " ");
 762                 if (os_snprintf_error(end - pos, ret)) {
 763                         end[-1] = '\0';
 764                         return buf;
 765                 }
 766                 pos += ret;
 767         }
 768
 769 #ifdef CONFIG_IEEE80211R
 770         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
 771                 ret = os_snprintf(pos, end - pos, "%sFT-PSK",
 772                                   pos == buf ? "" : " ");
 773                 if (os_snprintf_error(end - pos, ret)) {
 774                         end[-1] = '\0';
 775                         return buf;
 776                 }
 777                 pos += ret;
 778         }
 779
 780         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
 781                 ret = os_snprintf(pos, end - pos, "%sFT-EAP",
 782                                   pos == buf ? "" : " ");
 783                 if (os_snprintf_error(end - pos, ret)) {
 784                         end[-1] = '\0';
 785                         return buf;
 786                 }
 787                 pos += ret;
 788         }
 789 #endif /* CONFIG_IEEE80211R */
 790
 791 #ifdef CONFIG_IEEE80211W
 792         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
 793                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
 794                                   pos == buf ? "" : " ");
 795                 if (os_snprintf_error(end - pos, ret)) {
 796                         end[-1] = '\0';
 797                         return buf;
 798                 }
 799                 pos += ret;
 800         }
 801
 802         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
 803                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
 804                                   pos == buf ? "" : " ");
 805                 if (os_snprintf_error(end - pos, ret)) {
 806                         end[-1] = '\0';
 807                         return buf;
 808                 }
 809                 pos += ret;
 810         }
 811 #endif /* CONFIG_IEEE80211W */
 812
 813 #ifdef CONFIG_WPS
 814         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 815                 ret = os_snprintf(pos, end - pos, "%sWPS",
 816                                   pos == buf ? "" : " ");
 817                 if (os_snprintf_error(end - pos, ret)) {
 818                         end[-1] = '\0';
 819                         return buf;
 820                 }
 821                 pos += ret;
 822         }
 823 #endif /* CONFIG_WPS */
 824
 825 #ifdef CONFIG_SAE
 826         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 827                 ret = os_snprintf(pos, end - pos, "%sSAE",
 828                                   pos == buf ? "" : " ");
 829                 if (os_snprintf_error(end - pos, ret)) {
 830                         end[-1] = '\0';
 831                         return buf;
 832                 }
 833                 pos += ret;
 834         }
 835
 836         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
 837                 ret = os_snprintf(pos, end - pos, "%sFT-SAE",
 838                                   pos == buf ? "" : " ");
 839                 if (os_snprintf_error(end - pos, ret)) {
 840                         end[-1] = '\0';
 841                         return buf;
 842                 }
 843                 pos += ret;
 844         }
 845 #endif /* CONFIG_SAE */
 846
 847 #ifdef CONFIG_HS20
 848         if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
 849                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 850                                   pos == buf ? "" : " ");
 851                 if (os_snprintf_error(end - pos, ret)) {
 852                         end[-1] = '\0';
 853                         return buf;
 854                 }
 855                 pos += ret;
 856         }
 857 #endif /* CONFIG_HS20 */
 858
 859         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
 860                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
 861                                   pos == buf ? "" : " ");
 862                 if (os_snprintf_error(end - pos, ret)) {
 863                         end[-1] = '\0';
 864                         return buf;
 865                 }
 866                 pos += ret;
 867         }
 868
 869         if (pos == buf) {
 870                 os_free(buf);
 871                 buf = NULL;
 872         }
 873
 874         return buf;
 875 }
 876 #endif /* NO_CONFIG_WRITE */
 877
 878
 879 static int wpa_config_parse_cipher(int line, const char *value)
 880 {
 881         int val = wpa_parse_cipher(value);
 882         if (val < 0) {
 883                 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
 884                            line, value);
 885                 return -1;
 886         }
 887         if (val == 0) {
 888                 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
 889                            line);
 890                 return -1;
 891         }
 892         return val;
 893 }
 894
 895
 896 #ifndef NO_CONFIG_WRITE
 897 static char * wpa_config_write_cipher(int cipher)
 898 {
 899         char *buf = os_zalloc(50);
 900         if (buf == NULL)
 901                 return NULL;
 902
 903         if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
 904                 os_free(buf);
 905                 return NULL;
 906         }
 907
 908         return buf;
 909 }
 910 #endif /* NO_CONFIG_WRITE */
 911
 912
 913 static int wpa_config_parse_pairwise(const struct parse_data *data,
 914                                      struct wpa_ssid *ssid, int line,
 915                                      const char *value)
 916 {
 917         int val;
 918         val = wpa_config_parse_cipher(line, value);
 919         if (val == -1)
 920                 return -1;
 921         if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
 922                 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
 923                            "(0x%x).", line, val);
 924                 return -1;
 925         }
 926
 927         wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
 928         ssid->pairwise_cipher = val;
 929         return 0;
 930 }
 931
 932
 933 #ifndef NO_CONFIG_WRITE
 934 static char * wpa_config_write_pairwise(const struct parse_data *data,
 935                                         struct wpa_ssid *ssid)
 936 {
 937         return wpa_config_write_cipher(ssid->pairwise_cipher);
 938 }
 939 #endif /* NO_CONFIG_WRITE */
 940
 941
 942 static int wpa_config_parse_group(const struct parse_data *data,
 943                                   struct wpa_ssid *ssid, int line,
 944                                   const char *value)
 945 {
 946         int val;
 947         val = wpa_config_parse_cipher(line, value);
 948         if (val == -1)
 949                 return -1;
 950         if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
 951                 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
 952                            "(0x%x).", line, val);
 953                 return -1;
 954         }
 955
 956         wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
 957         ssid->group_cipher = val;
 958         return 0;
 959 }
 960
 961
 962 #ifndef NO_CONFIG_WRITE
 963 static char * wpa_config_write_group(const struct parse_data *data,
 964                                      struct wpa_ssid *ssid)
 965 {
 966         return wpa_config_write_cipher(ssid->group_cipher);
 967 }
 968 #endif /* NO_CONFIG_WRITE */
 969
 970
 971 static int wpa_config_parse_auth_alg(const struct parse_data *data,
 972                                      struct wpa_ssid *ssid, int line,
 973                                      const char *value)
 974 {
 975         int val = 0, last, errors = 0;
 976         char *start, *end, *buf;
 977
 978         buf = os_strdup(value);
 979         if (buf == NULL)
 980                 return -1;
 981         start = buf;
 982
 983         while (*start != '\0') {
 984                 while (*start == ' ' || *start == '\t')
 985                         start++;
 986                 if (*start == '\0')
 987                         break;
 988                 end = start;
 989                 while (*end != ' ' && *end != '\t' && *end != '\0')
 990                         end++;
 991                 last = *end == '\0';
 992                 *end = '\0';
 993                 if (os_strcmp(start, "OPEN") == 0)
 994                         val |= WPA_AUTH_ALG_OPEN;
 995                 else if (os_strcmp(start, "SHARED") == 0)
 996                         val |= WPA_AUTH_ALG_SHARED;
 997                 else if (os_strcmp(start, "LEAP") == 0)
 998                         val |= WPA_AUTH_ALG_LEAP;
 999                 else {
1000                         wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1001                                    line, start);
1002                         errors++;
1003                 }
1004
1005                 if (last)
1006                         break;
1007                 start = end + 1;
1008         }
1009         os_free(buf);
1010
1011         if (val == 0) {
1012                 wpa_printf(MSG_ERROR,
1013                            "Line %d: no auth_alg values configured.", line);
1014                 errors++;
1015         }
1016
1017         wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1018         ssid->auth_alg = val;
1019         return errors ? -1 : 0;
1020 }
1021
1022
1023 #ifndef NO_CONFIG_WRITE
1024 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1025                                         struct wpa_ssid *ssid)
1026 {
1027         char *buf, *pos, *end;
1028         int ret;
1029
1030         pos = buf = os_zalloc(30);
1031         if (buf == NULL)
1032                 return NULL;
1033         end = buf + 30;
1034
1035         if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1036                 ret = os_snprintf(pos, end - pos, "%sOPEN",
1037                                   pos == buf ? "" : " ");
1038                 if (os_snprintf_error(end - pos, ret)) {
1039                         end[-1] = '\0';
1040                         return buf;
1041                 }
1042                 pos += ret;
1043         }
1044
1045         if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1046                 ret = os_snprintf(pos, end - pos, "%sSHARED",
1047                                   pos == buf ? "" : " ");
1048                 if (os_snprintf_error(end - pos, ret)) {
1049                         end[-1] = '\0';
1050                         return buf;
1051                 }
1052                 pos += ret;
1053         }
1054
1055         if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1056                 ret = os_snprintf(pos, end - pos, "%sLEAP",
1057                                   pos == buf ? "" : " ");
1058                 if (os_snprintf_error(end - pos, ret)) {
1059                         end[-1] = '\0';
1060                         return buf;
1061                 }
1062                 pos += ret;
1063         }
1064
1065         if (pos == buf) {
1066                 os_free(buf);
1067                 buf = NULL;
1068         }
1069
1070         return buf;
1071 }
1072 #endif /* NO_CONFIG_WRITE */
1073
1074
1075 static int * wpa_config_parse_int_array(const char *value)
1076 {
1077         int *freqs;
1078         size_t used, len;
1079         const char *pos;
1080
1081         used = 0;
1082         len = 10;
1083         freqs = os_calloc(len + 1, sizeof(int));
1084         if (freqs == NULL)
1085                 return NULL;
1086
1087         pos = value;
1088         while (pos) {
1089                 while (*pos == ' ')
1090                         pos++;
1091                 if (used == len) {
1092                         int *n;
1093                         size_t i;
1094                         n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1095                         if (n == NULL) {
1096                                 os_free(freqs);
1097                                 return NULL;
1098                         }
1099                         for (i = len; i <= len * 2; i++)
1100                                 n[i] = 0;
1101                         freqs = n;
1102                         len *= 2;
1103                 }
1104
1105                 freqs[used] = atoi(pos);
1106                 if (freqs[used] == 0)
1107                         break;
1108                 used++;
1109                 pos = os_strchr(pos + 1, ' ');
1110         }
1111
1112         return freqs;
1113 }
1114
1115
1116 static int wpa_config_parse_scan_freq(const struct parse_data *data,
1117                                       struct wpa_ssid *ssid, int line,
1118                                       const char *value)
1119 {
1120         int *freqs;
1121
1122         freqs = wpa_config_parse_int_array(value);
1123         if (freqs == NULL)
1124                 return -1;
1125         if (freqs[0] == 0) {
1126                 os_free(freqs);
1127                 freqs = NULL;
1128         }
1129         os_free(ssid->scan_freq);
1130         ssid->scan_freq = freqs;
1131
1132         return 0;
1133 }
1134
1135
1136 static int wpa_config_parse_freq_list(const struct parse_data *data,
1137                                       struct wpa_ssid *ssid, int line,
1138                                       const char *value)
1139 {
1140         int *freqs;
1141
1142         freqs = wpa_config_parse_int_array(value);
1143         if (freqs == NULL)
1144                 return -1;
1145         if (freqs[0] == 0) {
1146                 os_free(freqs);
1147                 freqs = NULL;
1148         }
1149         os_free(ssid->freq_list);
1150         ssid->freq_list = freqs;
1151
1152         return 0;
1153 }
1154
1155
1156 #ifndef NO_CONFIG_WRITE
1157 static char * wpa_config_write_freqs(const struct parse_data *data,
1158                                      const int *freqs)
1159 {
1160         char *buf, *pos, *end;
1161         int i, ret;
1162         size_t count;
1163
1164         if (freqs == NULL)
1165                 return NULL;
1166
1167         count = 0;
1168         for (i = 0; freqs[i]; i++)
1169                 count++;
1170
1171         pos = buf = os_zalloc(10 * count + 1);
1172         if (buf == NULL)
1173                 return NULL;
1174         end = buf + 10 * count + 1;
1175
1176         for (i = 0; freqs[i]; i++) {
1177                 ret = os_snprintf(pos, end - pos, "%s%u",
1178                                   i == 0 ? "" : " ", freqs[i]);
1179                 if (os_snprintf_error(end - pos, ret)) {
1180                         end[-1] = '\0';
1181                         return buf;
1182                 }
1183                 pos += ret;
1184         }
1185
1186         return buf;
1187 }
1188
1189
1190 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1191                                          struct wpa_ssid *ssid)
1192 {
1193         return wpa_config_write_freqs(data, ssid->scan_freq);
1194 }
1195
1196
1197 static char * wpa_config_write_freq_list(const struct parse_data *data,
1198                                          struct wpa_ssid *ssid)
1199 {
1200         return wpa_config_write_freqs(data, ssid->freq_list);
1201 }
1202 #endif /* NO_CONFIG_WRITE */
1203
1204
1205 #ifdef IEEE8021X_EAPOL
1206 static int wpa_config_parse_eap(const struct parse_data *data,
1207                                 struct wpa_ssid *ssid, int line,
1208                                 const char *value)
1209 {
1210         int last, errors = 0;
1211         char *start, *end, *buf;
1212         struct eap_method_type *methods = NULL, *tmp;
1213         size_t num_methods = 0;
1214
1215         buf = os_strdup(value);
1216         if (buf == NULL)
1217                 return -1;
1218         start = buf;
1219
1220         while (*start != '\0') {
1221                 while (*start == ' ' || *start == '\t')
1222                         start++;
1223                 if (*start == '\0')
1224                         break;
1225                 end = start;
1226                 while (*end != ' ' && *end != '\t' && *end != '\0')
1227                         end++;
1228                 last = *end == '\0';
1229                 *end = '\0';
1230                 tmp = methods;
1231                 methods = os_realloc_array(methods, num_methods + 1,
1232                                            sizeof(*methods));
1233                 if (methods == NULL) {
1234                         os_free(tmp);
1235                         os_free(buf);
1236                         return -1;
1237                 }
1238                 methods[num_methods].method = eap_peer_get_type(
1239                         start, &methods[num_methods].vendor);
1240                 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1241                     methods[num_methods].method == EAP_TYPE_NONE) {
1242                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1243                                    "'%s'", line, start);
1244                         wpa_printf(MSG_ERROR, "You may need to add support for"
1245                                    " this EAP method during wpa_supplicant\n"
1246                                    "build time configuration.\n"
1247                                    "See README for more information.");
1248                         errors++;
1249                 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1250                            methods[num_methods].method == EAP_TYPE_LEAP)
1251                         ssid->leap++;
1252                 else
1253                         ssid->non_leap++;
1254                 num_methods++;
1255                 if (last)
1256                         break;
1257                 start = end + 1;
1258         }
1259         os_free(buf);
1260
1261         tmp = methods;
1262         methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1263         if (methods == NULL) {
1264                 os_free(tmp);
1265                 return -1;
1266         }
1267         methods[num_methods].vendor = EAP_VENDOR_IETF;
1268         methods[num_methods].method = EAP_TYPE_NONE;
1269         num_methods++;
1270
1271         wpa_hexdump(MSG_MSGDUMP, "eap methods",
1272                     (u8 *) methods, num_methods * sizeof(*methods));
1273         os_free(ssid->eap.eap_methods);
1274         ssid->eap.eap_methods = methods;
1275         return errors ? -1 : 0;
1276 }
1277
1278
1279 static char * wpa_config_write_eap(const struct parse_data *data,
1280                                    struct wpa_ssid *ssid)
1281 {
1282         int i, ret;
1283         char *buf, *pos, *end;
1284         const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1285         const char *name;
1286
1287         if (eap_methods == NULL)
1288                 return NULL;
1289
1290         pos = buf = os_zalloc(100);
1291         if (buf == NULL)
1292                 return NULL;
1293         end = buf + 100;
1294
1295         for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1296                      eap_methods[i].method != EAP_TYPE_NONE; i++) {
1297                 name = eap_get_name(eap_methods[i].vendor,
1298                                     eap_methods[i].method);
1299                 if (name) {
1300                         ret = os_snprintf(pos, end - pos, "%s%s",
1301                                           pos == buf ? "" : " ", name);
1302                         if (os_snprintf_error(end - pos, ret))
1303                                 break;
1304                         pos += ret;
1305                 }
1306         }
1307
1308         end[-1] = '\0';
1309
1310         return buf;
1311 }
1312
1313
1314 static int wpa_config_parse_password(const struct parse_data *data,
1315                                      struct wpa_ssid *ssid, int line,
1316                                      const char *value)
1317 {
1318         u8 *hash;
1319
1320         if (os_strcmp(value, "NULL") == 0) {
1321                 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1322                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1323                 ssid->eap.password = NULL;
1324                 ssid->eap.password_len = 0;
1325                 return 0;
1326         }
1327
1328 #ifdef CONFIG_EXT_PASSWORD
1329         if (os_strncmp(value, "ext:", 4) == 0) {
1330                 char *name = os_strdup(value + 4);
1331                 if (name == NULL)
1332                         return -1;
1333                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1334                 ssid->eap.password = (u8 *) name;
1335                 ssid->eap.password_len = os_strlen(name);
1336                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1337                 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1338                 return 0;
1339         }
1340 #endif /* CONFIG_EXT_PASSWORD */
1341
1342         if (os_strncmp(value, "hash:", 5) != 0) {
1343                 char *tmp;
1344                 size_t res_len;
1345
1346                 tmp = wpa_config_parse_string(value, &res_len);
1347                 if (tmp == NULL) {
1348                         wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1349                                    "password.", line);
1350                         return -1;
1351                 }
1352                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1353                                       (u8 *) tmp, res_len);
1354
1355                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1356                 ssid->eap.password = (u8 *) tmp;
1357                 ssid->eap.password_len = res_len;
1358                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1359                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1360
1361                 return 0;
1362         }
1363
1364
1365         /* NtPasswordHash: hash:<32 hex digits> */
1366         if (os_strlen(value + 5) != 2 * 16) {
1367                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1368                            "(expected 32 hex digits)", line);
1369                 return -1;
1370         }
1371
1372         hash = os_malloc(16);
1373         if (hash == NULL)
1374                 return -1;
1375
1376         if (hexstr2bin(value + 5, hash, 16)) {
1377                 os_free(hash);
1378                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1379                 return -1;
1380         }
1381
1382         wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1383
1384         bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1385         ssid->eap.password = hash;
1386         ssid->eap.password_len = 16;
1387         ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1388         ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1389
1390         return 0;
1391 }
1392
1393
1394 static char * wpa_config_write_password(const struct parse_data *data,
1395                                         struct wpa_ssid *ssid)
1396 {
1397         char *buf;
1398
1399         if (ssid->eap.password == NULL)
1400                 return NULL;
1401
1402 #ifdef CONFIG_EXT_PASSWORD
1403         if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1404                 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1405                 if (buf == NULL)
1406                         return NULL;
1407                 os_memcpy(buf, "ext:", 4);
1408                 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1409                 return buf;
1410         }
1411 #endif /* CONFIG_EXT_PASSWORD */
1412
1413         if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1414                 return wpa_config_write_string(
1415                         ssid->eap.password, ssid->eap.password_len);
1416         }
1417
1418         buf = os_malloc(5 + 32 + 1);
1419         if (buf == NULL)
1420                 return NULL;
1421
1422         os_memcpy(buf, "hash:", 5);
1423         wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1424
1425         return buf;
1426 }
1427 #endif /* IEEE8021X_EAPOL */
1428
1429
1430 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1431                                     const char *value, int idx)
1432 {
1433         char *buf, title[20];
1434         int res;
1435
1436         buf = wpa_config_parse_string(value, len);
1437         if (buf == NULL) {
1438                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1439                            line, idx, value);
1440                 return -1;
1441         }
1442         if (*len > MAX_WEP_KEY_LEN) {
1443                 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1444                            line, idx, value);
1445                 os_free(buf);
1446                 return -1;
1447         }
1448         if (*len && *len != 5 && *len != 13 && *len != 16) {
1449                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1450                            "this network block will be ignored",
1451                            line, (unsigned int) *len);
1452         }
1453         os_memcpy(key, buf, *len);
1454         str_clear_free(buf);
1455         res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1456         if (!os_snprintf_error(sizeof(title), res))
1457                 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1458         return 0;
1459 }
1460
1461
1462 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1463                                      struct wpa_ssid *ssid, int line,
1464                                      const char *value)
1465 {
1466         return wpa_config_parse_wep_key(ssid->wep_key[0],
1467                                         &ssid->wep_key_len[0], line,
1468                                         value, 0);
1469 }
1470
1471
1472 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1473                                      struct wpa_ssid *ssid, int line,
1474                                      const char *value)
1475 {
1476         return wpa_config_parse_wep_key(ssid->wep_key[1],
1477                                         &ssid->wep_key_len[1], line,
1478                                         value, 1);
1479 }
1480
1481
1482 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1483                                      struct wpa_ssid *ssid, int line,
1484                                      const char *value)
1485 {
1486         return wpa_config_parse_wep_key(ssid->wep_key[2],
1487                                         &ssid->wep_key_len[2], line,
1488                                         value, 2);
1489 }
1490
1491
1492 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1493                                      struct wpa_ssid *ssid, int line,
1494                                      const char *value)
1495 {
1496         return wpa_config_parse_wep_key(ssid->wep_key[3],
1497                                         &ssid->wep_key_len[3], line,
1498                                         value, 3);
1499 }
1500
1501
1502 #ifndef NO_CONFIG_WRITE
1503 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1504 {
1505         if (ssid->wep_key_len[idx] == 0)
1506                 return NULL;
1507         return wpa_config_write_string(ssid->wep_key[idx],
1508                                        ssid->wep_key_len[idx]);
1509 }
1510
1511
1512 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1513                                         struct wpa_ssid *ssid)
1514 {
1515         return wpa_config_write_wep_key(ssid, 0);
1516 }
1517
1518
1519 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1520                                         struct wpa_ssid *ssid)
1521 {
1522         return wpa_config_write_wep_key(ssid, 1);
1523 }
1524
1525
1526 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1527                                         struct wpa_ssid *ssid)
1528 {
1529         return wpa_config_write_wep_key(ssid, 2);
1530 }
1531
1532
1533 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1534                                         struct wpa_ssid *ssid)
1535 {
1536         return wpa_config_write_wep_key(ssid, 3);
1537 }
1538 #endif /* NO_CONFIG_WRITE */
1539
1540
1541 #ifdef CONFIG_P2P
1542
1543 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1544                                             struct wpa_ssid *ssid, int line,
1545                                             const char *value)
1546 {
1547         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1548             os_strcmp(value, "any") == 0) {
1549                 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1550                 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1551                 return 0;
1552         }
1553         if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1554                 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1555                            line, value);
1556                 return -1;
1557         }
1558         ssid->bssid_set = 1;
1559         wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1560                    MAC2STR(ssid->go_p2p_dev_addr));
1561         return 0;
1562 }
1563
1564
1565 #ifndef NO_CONFIG_WRITE
1566 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1567                                                struct wpa_ssid *ssid)
1568 {
1569         char *value;
1570         int res;
1571
1572         if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1573                 return NULL;
1574
1575         value = os_malloc(20);
1576         if (value == NULL)
1577                 return NULL;
1578         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1579         if (os_snprintf_error(20, res)) {
1580                 os_free(value);
1581                 return NULL;
1582         }
1583         value[20 - 1] = '\0';
1584         return value;
1585 }
1586 #endif /* NO_CONFIG_WRITE */
1587
1588
1589 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1590                                             struct wpa_ssid *ssid, int line,
1591                                             const char *value)
1592 {
1593         return wpa_config_parse_addr_list(data, line, value,
1594                                           &ssid->p2p_client_list,
1595                                           &ssid->num_p2p_clients,
1596                                           "p2p_client_list", 0, 0);
1597 }
1598
1599
1600 #ifndef NO_CONFIG_WRITE
1601 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1602                                                struct wpa_ssid *ssid)
1603 {
1604         return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1605                                           ssid->num_p2p_clients,
1606                                           "p2p_client_list");
1607 }
1608 #endif /* NO_CONFIG_WRITE */
1609
1610
1611 static int wpa_config_parse_psk_list(const struct parse_data *data,
1612                                      struct wpa_ssid *ssid, int line,
1613                                      const char *value)
1614 {
1615         struct psk_list_entry *p;
1616         const char *pos;
1617
1618         p = os_zalloc(sizeof(*p));
1619         if (p == NULL)
1620                 return -1;
1621
1622         pos = value;
1623         if (os_strncmp(pos, "P2P-", 4) == 0) {
1624                 p->p2p = 1;
1625                 pos += 4;
1626         }
1627
1628         if (hwaddr_aton(pos, p->addr)) {
1629                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1630                            line, pos);
1631                 os_free(p);
1632                 return -1;
1633         }
1634         pos += 17;
1635         if (*pos != '-') {
1636                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1637                            line, pos);
1638                 os_free(p);
1639                 return -1;
1640         }
1641         pos++;
1642
1643         if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1644                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1645                            line, pos);
1646                 os_free(p);
1647                 return -1;
1648         }
1649
1650         dl_list_add(&ssid->psk_list, &p->list);
1651
1652         return 0;
1653 }
1654
1655
1656 #ifndef NO_CONFIG_WRITE
1657 static char * wpa_config_write_psk_list(const struct parse_data *data,
1658                                         struct wpa_ssid *ssid)
1659 {
1660         return NULL;
1661 }
1662 #endif /* NO_CONFIG_WRITE */
1663
1664 #endif /* CONFIG_P2P */
1665
1666
1667 #ifdef CONFIG_MESH
1668
1669 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1670                                              struct wpa_ssid *ssid, int line,
1671                                              const char *value)
1672 {
1673         int *rates = wpa_config_parse_int_array(value);
1674
1675         if (rates == NULL) {
1676                 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1677                            line, value);
1678                 return -1;
1679         }
1680         if (rates[0] == 0) {
1681                 os_free(rates);
1682                 rates = NULL;
1683         }
1684
1685         os_free(ssid->mesh_basic_rates);
1686         ssid->mesh_basic_rates = rates;
1687
1688         return 0;
1689 }
1690
1691
1692 #ifndef NO_CONFIG_WRITE
1693
1694 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1695                                                 struct wpa_ssid *ssid)
1696 {
1697         return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1698 }
1699
1700 #endif /* NO_CONFIG_WRITE */
1701
1702 #endif /* CONFIG_MESH */
1703
1704
1705 /* Helper macros for network block parser */
1706
1707 #ifdef OFFSET
1708 #undef OFFSET
1709 #endif /* OFFSET */
1710 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1711 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1712
1713 /* STR: Define a string variable for an ASCII string; f = field name */
1714 #ifdef NO_CONFIG_WRITE
1715 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1716 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1717 #else /* NO_CONFIG_WRITE */
1718 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1719 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1720 #endif /* NO_CONFIG_WRITE */
1721 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1722 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1723 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1724 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1725
1726 /* STR_LEN: Define a string variable with a separate variable for storing the
1727  * data length. Unlike STR(), this can be used to store arbitrary binary data
1728  * (i.e., even nul termination character). */
1729 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1730 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1731 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1732 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1733 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1734
1735 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1736  * explicitly specified. */
1737 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1738 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1739 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1740
1741 #ifdef NO_CONFIG_WRITE
1742 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1743 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1744 #else /* NO_CONFIG_WRITE */
1745 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1746         OFFSET(f), (void *) 0
1747 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1748         OFFSET(eap.f), (void *) 0
1749 #endif /* NO_CONFIG_WRITE */
1750
1751 /* INT: Define an integer variable */
1752 #define INT(f) _INT(f), NULL, NULL, 0
1753 #define INTe(f) _INTe(f), NULL, NULL, 0
1754
1755 /* INT_RANGE: Define an integer variable with allowed value range */
1756 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1757
1758 /* FUNC: Define a configuration variable that uses a custom function for
1759  * parsing and writing the value. */
1760 #ifdef NO_CONFIG_WRITE
1761 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1762 #else /* NO_CONFIG_WRITE */
1763 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1764         NULL, NULL, NULL, NULL
1765 #endif /* NO_CONFIG_WRITE */
1766 #define FUNC(f) _FUNC(f), 0
1767 #define FUNC_KEY(f) _FUNC(f), 1
1768
1769 /*
1770  * Table of network configuration variables. This table is used to parse each
1771  * network configuration variable, e.g., each line in wpa_supplicant.conf file
1772  * that is inside a network block.
1773  *
1774  * This table is generated using the helper macros defined above and with
1775  * generous help from the C pre-processor. The field name is stored as a string
1776  * into .name and for STR and INT types, the offset of the target buffer within
1777  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1778  * offset to the field containing the length of the configuration variable.
1779  * .param3 and .param4 can be used to mark the allowed range (length for STR
1780  * and value for INT).
1781  *
1782  * For each configuration line in wpa_supplicant.conf, the parser goes through
1783  * this table and select the entry that matches with the field name. The parser
1784  * function (.parser) is then called to parse the actual value of the field.
1785  *
1786  * This kind of mechanism makes it easy to add new configuration parameters,
1787  * since only one line needs to be added into this table and into the
1788  * struct wpa_ssid definition if the new variable is either a string or
1789  * integer. More complex types will need to use their own parser and writer
1790  * functions.
1791  */
1792 static const struct parse_data ssid_fields[] = {
1793         { STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1794         { INT_RANGE(scan_ssid, 0, 1) },
1795         { FUNC(bssid) },
1796         { FUNC(bssid_blacklist) },
1797         { FUNC(bssid_whitelist) },
1798         { FUNC_KEY(psk) },
1799         { FUNC(proto) },
1800         { FUNC(key_mgmt) },
1801         { INT(bg_scan_period) },
1802         { FUNC(pairwise) },
1803         { FUNC(group) },
1804         { FUNC(auth_alg) },
1805         { FUNC(scan_freq) },
1806         { FUNC(freq_list) },
1807 #ifdef IEEE8021X_EAPOL
1808         { FUNC(eap) },
1809         { STR_LENe(identity) },
1810         { STR_LENe(anonymous_identity) },
1811         { FUNC_KEY(password) },
1812         { STRe(ca_cert) },
1813         { STRe(ca_path) },
1814         { STRe(client_cert) },
1815         { STRe(private_key) },
1816         { STR_KEYe(private_key_passwd) },
1817         { STRe(dh_file) },
1818         { STRe(subject_match) },
1819         { STRe(altsubject_match) },
1820         { STRe(domain_suffix_match) },
1821         { STRe(domain_match) },
1822         { STRe(ca_cert2) },
1823         { STRe(ca_path2) },
1824         { STRe(client_cert2) },
1825         { STRe(private_key2) },
1826         { STR_KEYe(private_key2_passwd) },
1827         { STRe(dh_file2) },
1828         { STRe(subject_match2) },
1829         { STRe(altsubject_match2) },
1830         { STRe(domain_suffix_match2) },
1831         { STRe(domain_match2) },
1832         { STRe(phase1) },
1833         { STRe(phase2) },
1834         { STRe(pcsc) },
1835         { STR_KEYe(pin) },
1836         { STRe(engine_id) },
1837         { STRe(key_id) },
1838         { STRe(cert_id) },
1839         { STRe(ca_cert_id) },
1840         { STR_KEYe(pin2) },
1841         { STRe(engine2_id) },
1842         { STRe(key2_id) },
1843         { STRe(cert2_id) },
1844         { STRe(ca_cert2_id) },
1845         { INTe(engine) },
1846         { INTe(engine2) },
1847         { INT(eapol_flags) },
1848         { INTe(sim_num) },
1849         { STRe(openssl_ciphers) },
1850         { INTe(erp) },
1851 #endif /* IEEE8021X_EAPOL */
1852         { FUNC_KEY(wep_key0) },
1853         { FUNC_KEY(wep_key1) },
1854         { FUNC_KEY(wep_key2) },
1855         { FUNC_KEY(wep_key3) },
1856         { INT(wep_tx_keyidx) },
1857         { INT(priority) },
1858 #ifdef IEEE8021X_EAPOL
1859         { INT(eap_workaround) },
1860         { STRe(pac_file) },
1861         { INTe(fragment_size) },
1862         { INTe(ocsp) },
1863 #endif /* IEEE8021X_EAPOL */
1864 #ifdef CONFIG_MESH
1865         { INT_RANGE(mode, 0, 5) },
1866         { INT_RANGE(no_auto_peer, 0, 1) },
1867 #else /* CONFIG_MESH */
1868         { INT_RANGE(mode, 0, 4) },
1869 #endif /* CONFIG_MESH */
1870         { INT_RANGE(proactive_key_caching, 0, 1) },
1871         { INT_RANGE(disabled, 0, 2) },
1872         { STR(id_str) },
1873 #ifdef CONFIG_IEEE80211W
1874         { INT_RANGE(ieee80211w, 0, 2) },
1875 #endif /* CONFIG_IEEE80211W */
1876         { INT_RANGE(peerkey, 0, 1) },
1877         { INT_RANGE(mixed_cell, 0, 1) },
1878         { INT_RANGE(frequency, 0, 65000) },
1879 #ifdef CONFIG_MESH
1880         { FUNC(mesh_basic_rates) },
1881         { INT(dot11MeshMaxRetries) },
1882         { INT(dot11MeshRetryTimeout) },
1883         { INT(dot11MeshConfirmTimeout) },
1884         { INT(dot11MeshHoldingTimeout) },
1885 #endif /* CONFIG_MESH */
1886         { INT(wpa_ptk_rekey) },
1887         { STR(bgscan) },
1888         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1889 #ifdef CONFIG_P2P
1890         { FUNC(go_p2p_dev_addr) },
1891         { FUNC(p2p_client_list) },
1892         { FUNC(psk_list) },
1893 #endif /* CONFIG_P2P */
1894 #ifdef CONFIG_HT_OVERRIDES
1895         { INT_RANGE(disable_ht, 0, 1) },
1896         { INT_RANGE(disable_ht40, -1, 1) },
1897         { INT_RANGE(disable_sgi, 0, 1) },
1898         { INT_RANGE(disable_ldpc, 0, 1) },
1899         { INT_RANGE(ht40_intolerant, 0, 1) },
1900         { INT_RANGE(disable_max_amsdu, -1, 1) },
1901         { INT_RANGE(ampdu_factor, -1, 3) },
1902         { INT_RANGE(ampdu_density, -1, 7) },
1903         { STR(ht_mcs) },
1904 #endif /* CONFIG_HT_OVERRIDES */
1905 #ifdef CONFIG_VHT_OVERRIDES
1906         { INT_RANGE(disable_vht, 0, 1) },
1907         { INT(vht_capa) },
1908         { INT(vht_capa_mask) },
1909         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1910         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1911         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1912         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1913         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1914         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1915         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1916         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1917         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1918         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1919         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1920         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1921         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1922         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1923         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1924         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1925 #endif /* CONFIG_VHT_OVERRIDES */
1926         { INT(ap_max_inactivity) },
1927         { INT(dtim_period) },
1928         { INT(beacon_int) },
1929 #ifdef CONFIG_MACSEC
1930         { INT_RANGE(macsec_policy, 0, 1) },
1931 #endif /* CONFIG_MACSEC */
1932 #ifdef CONFIG_HS20
1933         { INT(update_identifier) },
1934 #endif /* CONFIG_HS20 */
1935         { INT_RANGE(mac_addr, 0, 2) },
1936 };
1937
1938 #undef OFFSET
1939 #undef _STR
1940 #undef STR
1941 #undef STR_KEY
1942 #undef _STR_LEN
1943 #undef STR_LEN
1944 #undef STR_LEN_KEY
1945 #undef _STR_RANGE
1946 #undef STR_RANGE
1947 #undef STR_RANGE_KEY
1948 #undef _INT
1949 #undef INT
1950 #undef INT_RANGE
1951 #undef _FUNC
1952 #undef FUNC
1953 #undef FUNC_KEY
1954 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
1955
1956
1957 /**
1958  * wpa_config_add_prio_network - Add a network to priority lists
1959  * @config: Configuration data from wpa_config_read()
1960  * @ssid: Pointer to the network configuration to be added to the list
1961  * Returns: 0 on success, -1 on failure
1962  *
1963  * This function is used to add a network block to the priority list of
1964  * networks. This must be called for each network when reading in the full
1965  * configuration. In addition, this can be used indirectly when updating
1966  * priorities by calling wpa_config_update_prio_list().
1967  */
1968 int wpa_config_add_prio_network(struct wpa_config *config,
1969                                 struct wpa_ssid *ssid)
1970 {
1971         int prio;
1972         struct wpa_ssid *prev, **nlist;
1973
1974         /*
1975          * Add to an existing priority list if one is available for the
1976          * configured priority level for this network.
1977          */
1978         for (prio = 0; prio < config->num_prio; prio++) {
1979                 prev = config->pssid[prio];
1980                 if (prev->priority == ssid->priority) {
1981                         while (prev->pnext)
1982                                 prev = prev->pnext;
1983                         prev->pnext = ssid;
1984                         return 0;
1985                 }
1986         }
1987
1988         /* First network for this priority - add a new priority list */
1989         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
1990                                  sizeof(struct wpa_ssid *));
1991         if (nlist == NULL)
1992                 return -1;
1993
1994         for (prio = 0; prio < config->num_prio; prio++) {
1995                 if (nlist[prio]->priority < ssid->priority) {
1996                         os_memmove(&nlist[prio + 1], &nlist[prio],
1997                                    (config->num_prio - prio) *
1998                                    sizeof(struct wpa_ssid *));
1999                         break;
2000                 }
2001         }
2002
2003         nlist[prio] = ssid;
2004         config->num_prio++;
2005         config->pssid = nlist;
2006
2007         return 0;
2008 }
2009
2010
2011 /**
2012  * wpa_config_update_prio_list - Update network priority list
2013  * @config: Configuration data from wpa_config_read()
2014  * Returns: 0 on success, -1 on failure
2015  *
2016  * This function is called to update the priority list of networks in the
2017  * configuration when a network is being added or removed. This is also called
2018  * if a priority for a network is changed.
2019  */
2020 int wpa_config_update_prio_list(struct wpa_config *config)
2021 {
2022         struct wpa_ssid *ssid;
2023         int ret = 0;
2024
2025         os_free(config->pssid);
2026         config->pssid = NULL;
2027         config->num_prio = 0;
2028
2029         ssid = config->ssid;
2030         while (ssid) {
2031                 ssid->pnext = NULL;
2032                 if (wpa_config_add_prio_network(config, ssid) < 0)
2033                         ret = -1;
2034                 ssid = ssid->next;
2035         }
2036
2037         return ret;
2038 }
2039
2040
2041 #ifdef IEEE8021X_EAPOL
2042 static void eap_peer_config_free(struct eap_peer_config *eap)
2043 {
2044         os_free(eap->eap_methods);
2045         bin_clear_free(eap->identity, eap->identity_len);
2046         os_free(eap->anonymous_identity);
2047         bin_clear_free(eap->password, eap->password_len);
2048         os_free(eap->ca_cert);
2049         os_free(eap->ca_path);
2050         os_free(eap->client_cert);
2051         os_free(eap->private_key);
2052         str_clear_free(eap->private_key_passwd);
2053         os_free(eap->dh_file);
2054         os_free(eap->subject_match);
2055         os_free(eap->altsubject_match);
2056         os_free(eap->domain_suffix_match);
2057         os_free(eap->domain_match);
2058         os_free(eap->ca_cert2);
2059         os_free(eap->ca_path2);
2060         os_free(eap->client_cert2);
2061         os_free(eap->private_key2);
2062         str_clear_free(eap->private_key2_passwd);
2063         os_free(eap->dh_file2);
2064         os_free(eap->subject_match2);
2065         os_free(eap->altsubject_match2);
2066         os_free(eap->domain_suffix_match2);
2067         os_free(eap->domain_match2);
2068         os_free(eap->phase1);
2069         os_free(eap->phase2);
2070         os_free(eap->pcsc);
2071         str_clear_free(eap->pin);
2072         os_free(eap->engine_id);
2073         os_free(eap->key_id);
2074         os_free(eap->cert_id);
2075         os_free(eap->ca_cert_id);
2076         os_free(eap->key2_id);
2077         os_free(eap->cert2_id);
2078         os_free(eap->ca_cert2_id);
2079         str_clear_free(eap->pin2);
2080         os_free(eap->engine2_id);
2081         os_free(eap->otp);
2082         os_free(eap->pending_req_otp);
2083         os_free(eap->pac_file);
2084         bin_clear_free(eap->new_password, eap->new_password_len);
2085         str_clear_free(eap->external_sim_resp);
2086         os_free(eap->openssl_ciphers);
2087 }
2088 #endif /* IEEE8021X_EAPOL */
2089
2090
2091 /**
2092  * wpa_config_free_ssid - Free network/ssid configuration data
2093  * @ssid: Configuration data for the network
2094  *
2095  * This function frees all resources allocated for the network configuration
2096  * data.
2097  */
2098 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2099 {
2100         struct psk_list_entry *psk;
2101
2102         os_free(ssid->ssid);
2103         str_clear_free(ssid->passphrase);
2104         os_free(ssid->ext_psk);
2105 #ifdef IEEE8021X_EAPOL
2106         eap_peer_config_free(&ssid->eap);
2107 #endif /* IEEE8021X_EAPOL */
2108         os_free(ssid->id_str);
2109         os_free(ssid->scan_freq);
2110         os_free(ssid->freq_list);
2111         os_free(ssid->bgscan);
2112         os_free(ssid->p2p_client_list);
2113         os_free(ssid->bssid_blacklist);
2114         os_free(ssid->bssid_whitelist);
2115 #ifdef CONFIG_HT_OVERRIDES
2116         os_free(ssid->ht_mcs);
2117 #endif /* CONFIG_HT_OVERRIDES */
2118 #ifdef CONFIG_MESH
2119         os_free(ssid->mesh_basic_rates);
2120 #endif /* CONFIG_MESH */
2121         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2122                                     list))) {
2123                 dl_list_del(&psk->list);
2124                 bin_clear_free(psk, sizeof(*psk));
2125         }
2126         bin_clear_free(ssid, sizeof(*ssid));
2127 }
2128
2129
2130 void wpa_config_free_cred(struct wpa_cred *cred)
2131 {
2132         size_t i;
2133
2134         os_free(cred->realm);
2135         str_clear_free(cred->username);
2136         str_clear_free(cred->password);
2137         os_free(cred->ca_cert);
2138         os_free(cred->client_cert);
2139         os_free(cred->private_key);
2140         str_clear_free(cred->private_key_passwd);
2141         os_free(cred->imsi);
2142         str_clear_free(cred->milenage);
2143         for (i = 0; i < cred->num_domain; i++)
2144                 os_free(cred->domain[i]);
2145         os_free(cred->domain);
2146         os_free(cred->domain_suffix_match);
2147         os_free(cred->eap_method);
2148         os_free(cred->phase1);
2149         os_free(cred->phase2);
2150         os_free(cred->excluded_ssid);
2151         os_free(cred->roaming_partner);
2152         os_free(cred->provisioning_sp);
2153         for (i = 0; i < cred->num_req_conn_capab; i++)
2154                 os_free(cred->req_conn_capab_port[i]);
2155         os_free(cred->req_conn_capab_port);
2156         os_free(cred->req_conn_capab_proto);
2157         os_free(cred);
2158 }
2159
2160
2161 void wpa_config_flush_blobs(struct wpa_config *config)
2162 {
2163 #ifndef CONFIG_NO_CONFIG_BLOBS
2164         struct wpa_config_blob *blob, *prev;
2165
2166         blob = config->blobs;
2167         config->blobs = NULL;
2168         while (blob) {
2169                 prev = blob;
2170                 blob = blob->next;
2171                 wpa_config_free_blob(prev);
2172         }
2173 #endif /* CONFIG_NO_CONFIG_BLOBS */
2174 }
2175
2176
2177 /**
2178  * wpa_config_free - Free configuration data
2179  * @config: Configuration data from wpa_config_read()
2180  *
2181  * This function frees all resources allocated for the configuration data by
2182  * wpa_config_read().
2183  */
2184 void wpa_config_free(struct wpa_config *config)
2185 {
2186         struct wpa_ssid *ssid, *prev = NULL;
2187         struct wpa_cred *cred, *cprev;
2188         int i;
2189
2190         ssid = config->ssid;
2191         while (ssid) {
2192                 prev = ssid;
2193                 ssid = ssid->next;
2194                 wpa_config_free_ssid(prev);
2195         }
2196
2197         cred = config->cred;
2198         while (cred) {
2199                 cprev = cred;
2200                 cred = cred->next;
2201                 wpa_config_free_cred(cprev);
2202         }
2203
2204         wpa_config_flush_blobs(config);
2205
2206         wpabuf_free(config->wps_vendor_ext_m1);
2207         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2208                 wpabuf_free(config->wps_vendor_ext[i]);
2209         os_free(config->ctrl_interface);
2210         os_free(config->ctrl_interface_group);
2211         os_free(config->opensc_engine_path);
2212         os_free(config->pkcs11_engine_path);
2213         os_free(config->pkcs11_module_path);
2214         os_free(config->openssl_ciphers);
2215         os_free(config->pcsc_reader);
2216         str_clear_free(config->pcsc_pin);
2217         os_free(config->driver_param);
2218         os_free(config->device_name);
2219         os_free(config->manufacturer);
2220         os_free(config->model_name);
2221         os_free(config->model_number);
2222         os_free(config->serial_number);
2223         os_free(config->config_methods);
2224         os_free(config->p2p_ssid_postfix);
2225         os_free(config->pssid);
2226         os_free(config->p2p_pref_chan);
2227         os_free(config->p2p_no_go_freq.range);
2228         os_free(config->autoscan);
2229         os_free(config->freq_list);
2230         wpabuf_free(config->wps_nfc_dh_pubkey);
2231         wpabuf_free(config->wps_nfc_dh_privkey);
2232         wpabuf_free(config->wps_nfc_dev_pw);
2233         os_free(config->ext_password_backend);
2234         os_free(config->sae_groups);
2235         wpabuf_free(config->ap_vendor_elements);
2236         os_free(config->osu_dir);
2237         os_free(config->wowlan_triggers);
2238         os_free(config);
2239 }
2240
2241
2242 /**
2243  * wpa_config_foreach_network - Iterate over each configured network
2244  * @config: Configuration data from wpa_config_read()
2245  * @func: Callback function to process each network
2246  * @arg: Opaque argument to pass to callback function
2247  *
2248  * Iterate over the set of configured networks calling the specified
2249  * function for each item. We guard against callbacks removing the
2250  * supplied network.
2251  */
2252 void wpa_config_foreach_network(struct wpa_config *config,
2253                                 void (*func)(void *, struct wpa_ssid *),
2254                                 void *arg)
2255 {
2256         struct wpa_ssid *ssid, *next;
2257
2258         ssid = config->ssid;
2259         while (ssid) {
2260                 next = ssid->next;
2261                 func(arg, ssid);
2262                 ssid = next;
2263         }
2264 }
2265
2266
2267 /**
2268  * wpa_config_get_network - Get configured network based on id
2269  * @config: Configuration data from wpa_config_read()
2270  * @id: Unique network id to search for
2271  * Returns: Network configuration or %NULL if not found
2272  */
2273 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2274 {
2275         struct wpa_ssid *ssid;
2276
2277         ssid = config->ssid;
2278         while (ssid) {
2279                 if (id == ssid->id)
2280                         break;
2281                 ssid = ssid->next;
2282         }
2283
2284         return ssid;
2285 }
2286
2287
2288 /**
2289  * wpa_config_add_network - Add a new network with empty configuration
2290  * @config: Configuration data from wpa_config_read()
2291  * Returns: The new network configuration or %NULL if operation failed
2292  */
2293 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2294 {
2295         int id;
2296         struct wpa_ssid *ssid, *last = NULL;
2297
2298         id = -1;
2299         ssid = config->ssid;
2300         while (ssid) {
2301                 if (ssid->id > id)
2302                         id = ssid->id;
2303                 last = ssid;
2304                 ssid = ssid->next;
2305         }
2306         id++;
2307
2308         ssid = os_zalloc(sizeof(*ssid));
2309         if (ssid == NULL)
2310                 return NULL;
2311         ssid->id = id;
2312         dl_list_init(&ssid->psk_list);
2313         if (last)
2314                 last->next = ssid;
2315         else
2316                 config->ssid = ssid;
2317
2318         wpa_config_update_prio_list(config);
2319
2320         return ssid;
2321 }
2322
2323
2324 /**
2325  * wpa_config_remove_network - Remove a configured network based on id
2326  * @config: Configuration data from wpa_config_read()
2327  * @id: Unique network id to search for
2328  * Returns: 0 on success, or -1 if the network was not found
2329  */
2330 int wpa_config_remove_network(struct wpa_config *config, int id)
2331 {
2332         struct wpa_ssid *ssid, *prev = NULL;
2333
2334         ssid = config->ssid;
2335         while (ssid) {
2336                 if (id == ssid->id)
2337                         break;
2338                 prev = ssid;
2339                 ssid = ssid->next;
2340         }
2341
2342         if (ssid == NULL)
2343                 return -1;
2344
2345         if (prev)
2346                 prev->next = ssid->next;
2347         else
2348                 config->ssid = ssid->next;
2349
2350         wpa_config_update_prio_list(config);
2351         wpa_config_free_ssid(ssid);
2352         return 0;
2353 }
2354
2355
2356 /**
2357  * wpa_config_set_network_defaults - Set network default values
2358  * @ssid: Pointer to network configuration data
2359  */
2360 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2361 {
2362         ssid->proto = DEFAULT_PROTO;
2363         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2364         ssid->group_cipher = DEFAULT_GROUP;
2365         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2366         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2367 #ifdef IEEE8021X_EAPOL
2368         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2369         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2370         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2371         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2372 #endif /* IEEE8021X_EAPOL */
2373 #ifdef CONFIG_MESH
2374         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2375         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2376         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2377         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2378 #endif /* CONFIG_MESH */
2379 #ifdef CONFIG_HT_OVERRIDES
2380         ssid->disable_ht = DEFAULT_DISABLE_HT;
2381         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2382         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2383         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2384         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2385         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2386         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2387 #endif /* CONFIG_HT_OVERRIDES */
2388 #ifdef CONFIG_VHT_OVERRIDES
2389         ssid->vht_rx_mcs_nss_1 = -1;
2390         ssid->vht_rx_mcs_nss_2 = -1;
2391         ssid->vht_rx_mcs_nss_3 = -1;
2392         ssid->vht_rx_mcs_nss_4 = -1;
2393         ssid->vht_rx_mcs_nss_5 = -1;
2394         ssid->vht_rx_mcs_nss_6 = -1;
2395         ssid->vht_rx_mcs_nss_7 = -1;
2396         ssid->vht_rx_mcs_nss_8 = -1;
2397         ssid->vht_tx_mcs_nss_1 = -1;
2398         ssid->vht_tx_mcs_nss_2 = -1;
2399         ssid->vht_tx_mcs_nss_3 = -1;
2400         ssid->vht_tx_mcs_nss_4 = -1;
2401         ssid->vht_tx_mcs_nss_5 = -1;
2402         ssid->vht_tx_mcs_nss_6 = -1;
2403         ssid->vht_tx_mcs_nss_7 = -1;
2404         ssid->vht_tx_mcs_nss_8 = -1;
2405 #endif /* CONFIG_VHT_OVERRIDES */
2406         ssid->proactive_key_caching = -1;
2407 #ifdef CONFIG_IEEE80211W
2408         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2409 #endif /* CONFIG_IEEE80211W */
2410         ssid->mac_addr = -1;
2411 }
2412
2413
2414 /**
2415  * wpa_config_set - Set a variable in network configuration
2416  * @ssid: Pointer to network configuration data
2417  * @var: Variable name, e.g., "ssid"
2418  * @value: Variable value
2419  * @line: Line number in configuration file or 0 if not used
2420  * Returns: 0 on success, -1 on failure
2421  *
2422  * This function can be used to set network configuration variables based on
2423  * both the configuration file and management interface input. The value
2424  * parameter must be in the same format as the text-based configuration file is
2425  * using. For example, strings are using double quotation marks.
2426  */
2427 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2428                    int line)
2429 {
2430         size_t i;
2431         int ret = 0;
2432
2433         if (ssid == NULL || var == NULL || value == NULL)
2434                 return -1;
2435
2436         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2437                 const struct parse_data *field = &ssid_fields[i];
2438                 if (os_strcmp(var, field->name) != 0)
2439                         continue;
2440
2441                 if (field->parser(field, ssid, line, value)) {
2442                         if (line) {
2443                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2444                                            "parse %s '%s'.", line, var, value);
2445                         }
2446                         ret = -1;
2447                 }
2448                 break;
2449         }
2450         if (i == NUM_SSID_FIELDS) {
2451                 if (line) {
2452                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2453                                    "'%s'.", line, var);
2454                 }
2455                 ret = -1;
2456         }
2457
2458         return ret;
2459 }
2460
2461
2462 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2463                           const char *value)
2464 {
2465         size_t len;
2466         char *buf;
2467         int ret;
2468
2469         len = os_strlen(value);
2470         buf = os_malloc(len + 3);
2471         if (buf == NULL)
2472                 return -1;
2473         buf[0] = '"';
2474         os_memcpy(buf + 1, value, len);
2475         buf[len + 1] = '"';
2476         buf[len + 2] = '\0';
2477         ret = wpa_config_set(ssid, var, buf, 0);
2478         os_free(buf);
2479         return ret;
2480 }
2481
2482
2483 /**
2484  * wpa_config_get_all - Get all options from network configuration
2485  * @ssid: Pointer to network configuration data
2486  * @get_keys: Determines if keys/passwords will be included in returned list
2487  *      (if they may be exported)
2488  * Returns: %NULL terminated list of all set keys and their values in the form
2489  * of [key1, val1, key2, val2, ... , NULL]
2490  *
2491  * This function can be used to get list of all configured network properties.
2492  * The caller is responsible for freeing the returned list and all its
2493  * elements.
2494  */
2495 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2496 {
2497         const struct parse_data *field;
2498         char *key, *value;
2499         size_t i;
2500         char **props;
2501         int fields_num;
2502
2503         get_keys = get_keys && ssid->export_keys;
2504
2505         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2506         if (!props)
2507                 return NULL;
2508
2509         fields_num = 0;
2510         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2511                 field = &ssid_fields[i];
2512                 if (field->key_data && !get_keys)
2513                         continue;
2514                 value = field->writer(field, ssid);
2515                 if (value == NULL)
2516                         continue;
2517                 if (os_strlen(value) == 0) {
2518                         os_free(value);
2519                         continue;
2520                 }
2521
2522                 key = os_strdup(field->name);
2523                 if (key == NULL) {
2524                         os_free(value);
2525                         goto err;
2526                 }
2527
2528                 props[fields_num * 2] = key;
2529                 props[fields_num * 2 + 1] = value;
2530
2531                 fields_num++;
2532         }
2533
2534         return props;
2535
2536 err:
2537         value = *props;
2538         while (value)
2539                 os_free(value++);
2540         os_free(props);
2541         return NULL;
2542 }
2543
2544
2545 #ifndef NO_CONFIG_WRITE
2546 /**
2547  * wpa_config_get - Get a variable in network configuration
2548  * @ssid: Pointer to network configuration data
2549  * @var: Variable name, e.g., "ssid"
2550  * Returns: Value of the variable or %NULL on failure
2551  *
2552  * This function can be used to get network configuration variables. The
2553  * returned value is a copy of the configuration variable in text format, i.e,.
2554  * the same format that the text-based configuration file and wpa_config_set()
2555  * are using for the value. The caller is responsible for freeing the returned
2556  * value.
2557  */
2558 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2559 {
2560         size_t i;
2561
2562         if (ssid == NULL || var == NULL)
2563                 return NULL;
2564
2565         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2566                 const struct parse_data *field = &ssid_fields[i];
2567                 if (os_strcmp(var, field->name) == 0)
2568                         return field->writer(field, ssid);
2569         }
2570
2571         return NULL;
2572 }
2573
2574
2575 /**
2576  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2577  * @ssid: Pointer to network configuration data
2578  * @var: Variable name, e.g., "ssid"
2579  * Returns: Value of the variable or %NULL on failure
2580  *
2581  * This function can be used to get network configuration variable like
2582  * wpa_config_get(). The only difference is that this functions does not expose
2583  * key/password material from the configuration. In case a key/password field
2584  * is requested, the returned value is an empty string or %NULL if the variable
2585  * is not set or "*" if the variable is set (regardless of its value). The
2586  * returned value is a copy of the configuration variable in text format, i.e,.
2587  * the same format that the text-based configuration file and wpa_config_set()
2588  * are using for the value. The caller is responsible for freeing the returned
2589  * value.
2590  */
2591 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2592 {
2593         size_t i;
2594
2595         if (ssid == NULL || var == NULL)
2596                 return NULL;
2597
2598         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2599                 const struct parse_data *field = &ssid_fields[i];
2600                 if (os_strcmp(var, field->name) == 0) {
2601                         char *res = field->writer(field, ssid);
2602                         if (field->key_data) {
2603                                 if (res && res[0]) {
2604                                         wpa_printf(MSG_DEBUG, "Do not allow "
2605                                                    "key_data field to be "
2606                                                    "exposed");
2607                                         str_clear_free(res);
2608                                         return os_strdup("*");
2609                                 }
2610
2611                                 os_free(res);
2612                                 return NULL;
2613                         }
2614                         return res;
2615                 }
2616         }
2617
2618         return NULL;
2619 }
2620 #endif /* NO_CONFIG_WRITE */
2621
2622
2623 /**
2624  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2625  * @ssid: Pointer to network configuration data
2626  *
2627  * This function must be called to update WPA PSK when either SSID or the
2628  * passphrase has changed for the network configuration.
2629  */
2630 void wpa_config_update_psk(struct wpa_ssid *ssid)
2631 {
2632 #ifndef CONFIG_NO_PBKDF2
2633         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2634                     ssid->psk, PMK_LEN);
2635         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2636                         ssid->psk, PMK_LEN);
2637         ssid->psk_set = 1;
2638 #endif /* CONFIG_NO_PBKDF2 */
2639 }
2640
2641
2642 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2643                                               const char *value)
2644 {
2645         u8 *proto;
2646         int **port;
2647         int *ports, *nports;
2648         const char *pos;
2649         unsigned int num_ports;
2650
2651         proto = os_realloc_array(cred->req_conn_capab_proto,
2652                                  cred->num_req_conn_capab + 1, sizeof(u8));
2653         if (proto == NULL)
2654                 return -1;
2655         cred->req_conn_capab_proto = proto;
2656
2657         port = os_realloc_array(cred->req_conn_capab_port,
2658                                 cred->num_req_conn_capab + 1, sizeof(int *));
2659         if (port == NULL)
2660                 return -1;
2661         cred->req_conn_capab_port = port;
2662
2663         proto[cred->num_req_conn_capab] = atoi(value);
2664
2665         pos = os_strchr(value, ':');
2666         if (pos == NULL) {
2667                 port[cred->num_req_conn_capab] = NULL;
2668                 cred->num_req_conn_capab++;
2669                 return 0;
2670         }
2671         pos++;
2672
2673         ports = NULL;
2674         num_ports = 0;
2675
2676         while (*pos) {
2677                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2678                 if (nports == NULL) {
2679                         os_free(ports);
2680                         return -1;
2681                 }
2682                 ports = nports;
2683                 ports[num_ports++] = atoi(pos);
2684
2685                 pos = os_strchr(pos, ',');
2686                 if (pos == NULL)
2687                         break;
2688                 pos++;
2689         }
2690
2691         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2692         if (nports == NULL) {
2693                 os_free(ports);
2694                 return -1;
2695         }
2696         ports = nports;
2697         ports[num_ports] = -1;
2698
2699         port[cred->num_req_conn_capab] = ports;
2700         cred->num_req_conn_capab++;
2701         return 0;
2702 }
2703
2704
2705 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2706                         const char *value, int line)
2707 {
2708         char *val;
2709         size_t len;
2710
2711         if (os_strcmp(var, "temporary") == 0) {
2712                 cred->temporary = atoi(value);
2713                 return 0;
2714         }
2715
2716         if (os_strcmp(var, "priority") == 0) {
2717                 cred->priority = atoi(value);
2718                 return 0;
2719         }
2720
2721         if (os_strcmp(var, "sp_priority") == 0) {
2722                 int prio = atoi(value);
2723                 if (prio < 0 || prio > 255)
2724                         return -1;
2725                 cred->sp_priority = prio;
2726                 return 0;
2727         }
2728
2729         if (os_strcmp(var, "pcsc") == 0) {
2730                 cred->pcsc = atoi(value);
2731                 return 0;
2732         }
2733
2734         if (os_strcmp(var, "eap") == 0) {
2735                 struct eap_method_type method;
2736                 method.method = eap_peer_get_type(value, &method.vendor);
2737                 if (method.vendor == EAP_VENDOR_IETF &&
2738                     method.method == EAP_TYPE_NONE) {
2739                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2740                                    "for a credential", line, value);
2741                         return -1;
2742                 }
2743                 os_free(cred->eap_method);
2744                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2745                 if (cred->eap_method == NULL)
2746                         return -1;
2747                 os_memcpy(cred->eap_method, &method, sizeof(method));
2748                 return 0;
2749         }
2750
2751         if (os_strcmp(var, "password") == 0 &&
2752             os_strncmp(value, "ext:", 4) == 0) {
2753                 str_clear_free(cred->password);
2754                 cred->password = os_strdup(value);
2755                 cred->ext_password = 1;
2756                 return 0;
2757         }
2758
2759         if (os_strcmp(var, "update_identifier") == 0) {
2760                 cred->update_identifier = atoi(value);
2761                 return 0;
2762         }
2763
2764         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2765                 cred->min_dl_bandwidth_home = atoi(value);
2766                 return 0;
2767         }
2768
2769         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2770                 cred->min_ul_bandwidth_home = atoi(value);
2771                 return 0;
2772         }
2773
2774         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2775                 cred->min_dl_bandwidth_roaming = atoi(value);
2776                 return 0;
2777         }
2778
2779         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2780                 cred->min_ul_bandwidth_roaming = atoi(value);
2781                 return 0;
2782         }
2783
2784         if (os_strcmp(var, "max_bss_load") == 0) {
2785                 cred->max_bss_load = atoi(value);
2786                 return 0;
2787         }
2788
2789         if (os_strcmp(var, "req_conn_capab") == 0)
2790                 return wpa_config_set_cred_req_conn_capab(cred, value);
2791
2792         if (os_strcmp(var, "ocsp") == 0) {
2793                 cred->ocsp = atoi(value);
2794                 return 0;
2795         }
2796
2797         if (os_strcmp(var, "sim_num") == 0) {
2798                 cred->sim_num = atoi(value);
2799                 return 0;
2800         }
2801
2802         val = wpa_config_parse_string(value, &len);
2803         if (val == NULL) {
2804                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2805                            "value '%s'.", line, var, value);
2806                 return -1;
2807         }
2808
2809         if (os_strcmp(var, "realm") == 0) {
2810                 os_free(cred->realm);
2811                 cred->realm = val;
2812                 return 0;
2813         }
2814
2815         if (os_strcmp(var, "username") == 0) {
2816                 str_clear_free(cred->username);
2817                 cred->username = val;
2818                 return 0;
2819         }
2820
2821         if (os_strcmp(var, "password") == 0) {
2822                 str_clear_free(cred->password);
2823                 cred->password = val;
2824                 cred->ext_password = 0;
2825                 return 0;
2826         }
2827
2828         if (os_strcmp(var, "ca_cert") == 0) {
2829                 os_free(cred->ca_cert);
2830                 cred->ca_cert = val;
2831                 return 0;
2832         }
2833
2834         if (os_strcmp(var, "client_cert") == 0) {
2835                 os_free(cred->client_cert);
2836                 cred->client_cert = val;
2837                 return 0;
2838         }
2839
2840         if (os_strcmp(var, "private_key") == 0) {
2841                 os_free(cred->private_key);
2842                 cred->private_key = val;
2843                 return 0;
2844         }
2845
2846         if (os_strcmp(var, "private_key_passwd") == 0) {
2847                 str_clear_free(cred->private_key_passwd);
2848                 cred->private_key_passwd = val;
2849                 return 0;
2850         }
2851
2852         if (os_strcmp(var, "imsi") == 0) {
2853                 os_free(cred->imsi);
2854                 cred->imsi = val;
2855                 return 0;
2856         }
2857
2858         if (os_strcmp(var, "milenage") == 0) {
2859                 str_clear_free(cred->milenage);
2860                 cred->milenage = val;
2861                 return 0;
2862         }
2863
2864         if (os_strcmp(var, "domain_suffix_match") == 0) {
2865                 os_free(cred->domain_suffix_match);
2866                 cred->domain_suffix_match = val;
2867                 return 0;
2868         }
2869
2870         if (os_strcmp(var, "domain") == 0) {
2871                 char **new_domain;
2872                 new_domain = os_realloc_array(cred->domain,
2873                                               cred->num_domain + 1,
2874                                               sizeof(char *));
2875                 if (new_domain == NULL) {
2876                         os_free(val);
2877                         return -1;
2878                 }
2879                 new_domain[cred->num_domain++] = val;
2880                 cred->domain = new_domain;
2881                 return 0;
2882         }
2883
2884         if (os_strcmp(var, "phase1") == 0) {
2885                 os_free(cred->phase1);
2886                 cred->phase1 = val;
2887                 return 0;
2888         }
2889
2890         if (os_strcmp(var, "phase2") == 0) {
2891                 os_free(cred->phase2);
2892                 cred->phase2 = val;
2893                 return 0;
2894         }
2895
2896         if (os_strcmp(var, "roaming_consortium") == 0) {
2897                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2898                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2899                                    "roaming_consortium length %d (3..15 "
2900                                    "expected)", line, (int) len);
2901                         os_free(val);
2902                         return -1;
2903                 }
2904                 os_memcpy(cred->roaming_consortium, val, len);
2905                 cred->roaming_consortium_len = len;
2906                 os_free(val);
2907                 return 0;
2908         }
2909
2910         if (os_strcmp(var, "required_roaming_consortium") == 0) {
2911                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2912                 {
2913                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2914                                    "required_roaming_consortium length %d "
2915                                    "(3..15 expected)", line, (int) len);
2916                         os_free(val);
2917                         return -1;
2918                 }
2919                 os_memcpy(cred->required_roaming_consortium, val, len);
2920                 cred->required_roaming_consortium_len = len;
2921                 os_free(val);
2922                 return 0;
2923         }
2924
2925         if (os_strcmp(var, "excluded_ssid") == 0) {
2926                 struct excluded_ssid *e;
2927
2928                 if (len > MAX_SSID_LEN) {
2929                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2930                                    "excluded_ssid length %d", line, (int) len);
2931                         os_free(val);
2932                         return -1;
2933                 }
2934
2935                 e = os_realloc_array(cred->excluded_ssid,
2936                                      cred->num_excluded_ssid + 1,
2937                                      sizeof(struct excluded_ssid));
2938                 if (e == NULL) {
2939                         os_free(val);
2940                         return -1;
2941                 }
2942                 cred->excluded_ssid = e;
2943
2944                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2945                 os_memcpy(e->ssid, val, len);
2946                 e->ssid_len = len;
2947
2948                 os_free(val);
2949
2950                 return 0;
2951         }
2952
2953         if (os_strcmp(var, "roaming_partner") == 0) {
2954                 struct roaming_partner *p;
2955                 char *pos;
2956
2957                 p = os_realloc_array(cred->roaming_partner,
2958                                      cred->num_roaming_partner + 1,
2959                                      sizeof(struct roaming_partner));
2960                 if (p == NULL) {
2961                         os_free(val);
2962                         return -1;
2963                 }
2964                 cred->roaming_partner = p;
2965
2966                 p = &cred->roaming_partner[cred->num_roaming_partner];
2967
2968                 pos = os_strchr(val, ',');
2969                 if (pos == NULL) {
2970                         os_free(val);
2971                         return -1;
2972                 }
2973                 *pos++ = '\0';
2974                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
2975                         os_free(val);
2976                         return -1;
2977                 }
2978                 os_memcpy(p->fqdn, val, pos - val);
2979
2980                 p->exact_match = atoi(pos);
2981
2982                 pos = os_strchr(pos, ',');
2983                 if (pos == NULL) {
2984                         os_free(val);
2985                         return -1;
2986                 }
2987                 *pos++ = '\0';
2988
2989                 p->priority = atoi(pos);
2990
2991                 pos = os_strchr(pos, ',');
2992                 if (pos == NULL) {
2993                         os_free(val);
2994                         return -1;
2995                 }
2996                 *pos++ = '\0';
2997
2998                 if (os_strlen(pos) >= sizeof(p->country)) {
2999                         os_free(val);
3000                         return -1;
3001                 }
3002                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3003
3004                 cred->num_roaming_partner++;
3005                 os_free(val);
3006
3007                 return 0;
3008         }
3009
3010         if (os_strcmp(var, "provisioning_sp") == 0) {
3011                 os_free(cred->provisioning_sp);
3012                 cred->provisioning_sp = val;
3013                 return 0;
3014         }
3015
3016         if (line) {
3017                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3018                            line, var);
3019         }
3020
3021         os_free(val);
3022
3023         return -1;
3024 }
3025
3026
3027 static char * alloc_int_str(int val)
3028 {
3029         const unsigned int bufsize = 20;
3030         char *buf;
3031         int res;
3032
3033         buf = os_malloc(bufsize);
3034         if (buf == NULL)
3035                 return NULL;
3036         res = os_snprintf(buf, bufsize, "%d", val);
3037         if (os_snprintf_error(bufsize, res)) {
3038                 os_free(buf);
3039                 buf = NULL;
3040         }
3041         return buf;
3042 }
3043
3044
3045 static char * alloc_strdup(const char *str)
3046 {
3047         if (str == NULL)
3048                 return NULL;
3049         return os_strdup(str);
3050 }
3051
3052
3053 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3054 {
3055         if (os_strcmp(var, "temporary") == 0)
3056                 return alloc_int_str(cred->temporary);
3057
3058         if (os_strcmp(var, "priority") == 0)
3059                 return alloc_int_str(cred->priority);
3060
3061         if (os_strcmp(var, "sp_priority") == 0)
3062                 return alloc_int_str(cred->sp_priority);
3063
3064         if (os_strcmp(var, "pcsc") == 0)
3065                 return alloc_int_str(cred->pcsc);
3066
3067         if (os_strcmp(var, "eap") == 0) {
3068                 if (!cred->eap_method)
3069                         return NULL;
3070                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3071                                                  cred->eap_method[0].method));
3072         }
3073
3074         if (os_strcmp(var, "update_identifier") == 0)
3075                 return alloc_int_str(cred->update_identifier);
3076
3077         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3078                 return alloc_int_str(cred->min_dl_bandwidth_home);
3079
3080         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3081                 return alloc_int_str(cred->min_ul_bandwidth_home);
3082
3083         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3084                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3085
3086         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3087                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3088
3089         if (os_strcmp(var, "max_bss_load") == 0)
3090                 return alloc_int_str(cred->max_bss_load);
3091
3092         if (os_strcmp(var, "req_conn_capab") == 0) {
3093                 unsigned int i;
3094                 char *buf, *end, *pos;
3095                 int ret;
3096
3097                 if (!cred->num_req_conn_capab)
3098                         return NULL;
3099
3100                 buf = os_malloc(4000);
3101                 if (buf == NULL)
3102                         return NULL;
3103                 pos = buf;
3104                 end = pos + 4000;
3105                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3106                         int *ports;
3107
3108                         ret = os_snprintf(pos, end - pos, "%s%u",
3109                                           i > 0 ? "\n" : "",
3110                                           cred->req_conn_capab_proto[i]);
3111                         if (os_snprintf_error(end - pos, ret))
3112                                 return buf;
3113                         pos += ret;
3114
3115                         ports = cred->req_conn_capab_port[i];
3116                         if (ports) {
3117                                 int j;
3118                                 for (j = 0; ports[j] != -1; j++) {
3119                                         ret = os_snprintf(pos, end - pos,
3120                                                           "%s%d",
3121                                                           j > 0 ? "," : ":",
3122                                                           ports[j]);
3123                                         if (os_snprintf_error(end - pos, ret))
3124                                                 return buf;
3125                                         pos += ret;
3126                                 }
3127                         }
3128                 }
3129
3130                 return buf;
3131         }
3132
3133         if (os_strcmp(var, "ocsp") == 0)
3134                 return alloc_int_str(cred->ocsp);
3135
3136         if (os_strcmp(var, "realm") == 0)
3137                 return alloc_strdup(cred->realm);
3138
3139         if (os_strcmp(var, "username") == 0)
3140                 return alloc_strdup(cred->username);
3141
3142         if (os_strcmp(var, "password") == 0) {
3143                 if (!cred->password)
3144                         return NULL;
3145                 return alloc_strdup("*");
3146         }
3147
3148         if (os_strcmp(var, "ca_cert") == 0)
3149                 return alloc_strdup(cred->ca_cert);
3150
3151         if (os_strcmp(var, "client_cert") == 0)
3152                 return alloc_strdup(cred->client_cert);
3153
3154         if (os_strcmp(var, "private_key") == 0)
3155                 return alloc_strdup(cred->private_key);
3156
3157         if (os_strcmp(var, "private_key_passwd") == 0) {
3158                 if (!cred->private_key_passwd)
3159                         return NULL;
3160                 return alloc_strdup("*");
3161         }
3162
3163         if (os_strcmp(var, "imsi") == 0)
3164                 return alloc_strdup(cred->imsi);
3165
3166         if (os_strcmp(var, "milenage") == 0) {
3167                 if (!(cred->milenage))
3168                         return NULL;
3169                 return alloc_strdup("*");
3170         }
3171
3172         if (os_strcmp(var, "domain_suffix_match") == 0)
3173                 return alloc_strdup(cred->domain_suffix_match);
3174
3175         if (os_strcmp(var, "domain") == 0) {
3176                 unsigned int i;
3177                 char *buf, *end, *pos;
3178                 int ret;
3179
3180                 if (!cred->num_domain)
3181                         return NULL;
3182
3183                 buf = os_malloc(4000);
3184                 if (buf == NULL)
3185                         return NULL;
3186                 pos = buf;
3187                 end = pos + 4000;
3188
3189                 for (i = 0; i < cred->num_domain; i++) {
3190                         ret = os_snprintf(pos, end - pos, "%s%s",
3191                                           i > 0 ? "\n" : "", cred->domain[i]);
3192                         if (os_snprintf_error(end - pos, ret))
3193                                 return buf;
3194                         pos += ret;
3195                 }
3196
3197                 return buf;
3198         }
3199
3200         if (os_strcmp(var, "phase1") == 0)
3201                 return alloc_strdup(cred->phase1);
3202
3203         if (os_strcmp(var, "phase2") == 0)
3204                 return alloc_strdup(cred->phase2);
3205
3206         if (os_strcmp(var, "roaming_consortium") == 0) {
3207                 size_t buflen;
3208                 char *buf;
3209
3210                 if (!cred->roaming_consortium_len)
3211                         return NULL;
3212                 buflen = cred->roaming_consortium_len * 2 + 1;
3213                 buf = os_malloc(buflen);
3214                 if (buf == NULL)
3215                         return NULL;
3216                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3217                                  cred->roaming_consortium_len);
3218                 return buf;
3219         }
3220
3221         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3222                 size_t buflen;
3223                 char *buf;
3224
3225                 if (!cred->required_roaming_consortium_len)
3226                         return NULL;
3227                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3228                 buf = os_malloc(buflen);
3229                 if (buf == NULL)
3230                         return NULL;
3231                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3232                                  cred->required_roaming_consortium_len);
3233                 return buf;
3234         }
3235
3236         if (os_strcmp(var, "excluded_ssid") == 0) {
3237                 unsigned int i;
3238                 char *buf, *end, *pos;
3239
3240                 if (!cred->num_excluded_ssid)
3241                         return NULL;
3242
3243                 buf = os_malloc(4000);
3244                 if (buf == NULL)
3245                         return NULL;
3246                 pos = buf;
3247                 end = pos + 4000;
3248
3249                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3250                         struct excluded_ssid *e;
3251                         int ret;
3252
3253                         e = &cred->excluded_ssid[i];
3254                         ret = os_snprintf(pos, end - pos, "%s%s",
3255                                           i > 0 ? "\n" : "",
3256                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3257                         if (os_snprintf_error(end - pos, ret))
3258                                 return buf;
3259                         pos += ret;
3260                 }
3261
3262                 return buf;
3263         }
3264
3265         if (os_strcmp(var, "roaming_partner") == 0) {
3266                 unsigned int i;
3267                 char *buf, *end, *pos;
3268
3269                 if (!cred->num_roaming_partner)
3270                         return NULL;
3271
3272                 buf = os_malloc(4000);
3273                 if (buf == NULL)
3274                         return NULL;
3275                 pos = buf;
3276                 end = pos + 4000;
3277
3278                 for (i = 0; i < cred->num_roaming_partner; i++) {
3279                         struct roaming_partner *p;
3280                         int ret;
3281
3282                         p = &cred->roaming_partner[i];
3283                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3284                                           i > 0 ? "\n" : "",
3285                                           p->fqdn, p->exact_match, p->priority,
3286                                           p->country);
3287                         if (os_snprintf_error(end - pos, ret))
3288                                 return buf;
3289                         pos += ret;
3290                 }
3291
3292                 return buf;
3293         }
3294
3295         if (os_strcmp(var, "provisioning_sp") == 0)
3296                 return alloc_strdup(cred->provisioning_sp);
3297
3298         return NULL;
3299 }
3300
3301
3302 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3303 {
3304         struct wpa_cred *cred;
3305
3306         cred = config->cred;
3307         while (cred) {
3308                 if (id == cred->id)
3309                         break;
3310                 cred = cred->next;
3311         }
3312
3313         return cred;
3314 }
3315
3316
3317 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3318 {
3319         int id;
3320         struct wpa_cred *cred, *last = NULL;
3321
3322         id = -1;
3323         cred = config->cred;
3324         while (cred) {
3325                 if (cred->id > id)
3326                         id = cred->id;
3327                 last = cred;
3328                 cred = cred->next;
3329         }
3330         id++;
3331
3332         cred = os_zalloc(sizeof(*cred));
3333         if (cred == NULL)
3334                 return NULL;
3335         cred->id = id;
3336         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3337         if (last)
3338                 last->next = cred;
3339         else
3340                 config->cred = cred;
3341
3342         return cred;
3343 }
3344
3345
3346 int wpa_config_remove_cred(struct wpa_config *config, int id)
3347 {
3348         struct wpa_cred *cred, *prev = NULL;
3349
3350         cred = config->cred;
3351         while (cred) {
3352                 if (id == cred->id)
3353                         break;
3354                 prev = cred;
3355                 cred = cred->next;
3356         }
3357
3358         if (cred == NULL)
3359                 return -1;
3360
3361         if (prev)
3362                 prev->next = cred->next;
3363         else
3364                 config->cred = cred->next;
3365
3366         wpa_config_free_cred(cred);
3367         return 0;
3368 }
3369
3370
3371 #ifndef CONFIG_NO_CONFIG_BLOBS
3372 /**
3373  * wpa_config_get_blob - Get a named configuration blob
3374  * @config: Configuration data from wpa_config_read()
3375  * @name: Name of the blob
3376  * Returns: Pointer to blob data or %NULL if not found
3377  */
3378 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3379                                                    const char *name)
3380 {
3381         struct wpa_config_blob *blob = config->blobs;
3382
3383         while (blob) {
3384                 if (os_strcmp(blob->name, name) == 0)
3385                         return blob;
3386                 blob = blob->next;
3387         }
3388         return NULL;
3389 }
3390
3391
3392 /**
3393  * wpa_config_set_blob - Set or add a named configuration blob
3394  * @config: Configuration data from wpa_config_read()
3395  * @blob: New value for the blob
3396  *
3397  * Adds a new configuration blob or replaces the current value of an existing
3398  * blob.
3399  */
3400 void wpa_config_set_blob(struct wpa_config *config,
3401                          struct wpa_config_blob *blob)
3402 {
3403         wpa_config_remove_blob(config, blob->name);
3404         blob->next = config->blobs;
3405         config->blobs = blob;
3406 }
3407
3408
3409 /**
3410  * wpa_config_free_blob - Free blob data
3411  * @blob: Pointer to blob to be freed
3412  */
3413 void wpa_config_free_blob(struct wpa_config_blob *blob)
3414 {
3415         if (blob) {
3416                 os_free(blob->name);
3417                 bin_clear_free(blob->data, blob->len);
3418                 os_free(blob);
3419         }
3420 }
3421
3422
3423 /**
3424  * wpa_config_remove_blob - Remove a named configuration blob
3425  * @config: Configuration data from wpa_config_read()
3426  * @name: Name of the blob to remove
3427  * Returns: 0 if blob was removed or -1 if blob was not found
3428  */
3429 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3430 {
3431         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3432
3433         while (pos) {
3434                 if (os_strcmp(pos->name, name) == 0) {
3435                         if (prev)
3436                                 prev->next = pos->next;
3437                         else
3438                                 config->blobs = pos->next;
3439                         wpa_config_free_blob(pos);
3440                         return 0;
3441                 }
3442                 prev = pos;
3443                 pos = pos->next;
3444         }
3445
3446         return -1;
3447 }
3448 #endif /* CONFIG_NO_CONFIG_BLOBS */
3449
3450
3451 /**
3452  * wpa_config_alloc_empty - Allocate an empty configuration
3453  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3454  * socket
3455  * @driver_param: Driver parameters
3456  * Returns: Pointer to allocated configuration data or %NULL on failure
3457  */
3458 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3459                                            const char *driver_param)
3460 {
3461         struct wpa_config *config;
3462         const int aCWmin = 4, aCWmax = 10;
3463         const struct hostapd_wmm_ac_params ac_bk =
3464                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3465         const struct hostapd_wmm_ac_params ac_be =
3466                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3467         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3468                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3469         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3470                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3471
3472         config = os_zalloc(sizeof(*config));
3473         if (config == NULL)
3474                 return NULL;
3475         config->eapol_version = DEFAULT_EAPOL_VERSION;
3476         config->ap_scan = DEFAULT_AP_SCAN;
3477         config->user_mpm = DEFAULT_USER_MPM;
3478         config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
3479         config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
3480         config->fast_reauth = DEFAULT_FAST_REAUTH;
3481         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3482         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3483         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3484         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3485         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3486         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3487         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3488         config->max_num_sta = DEFAULT_MAX_NUM_STA;
3489         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3490         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3491         config->wmm_ac_params[0] = ac_be;
3492         config->wmm_ac_params[1] = ac_bk;
3493         config->wmm_ac_params[2] = ac_vi;
3494         config->wmm_ac_params[3] = ac_vo;
3495         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3496         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3497         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3498         config->cert_in_cb = DEFAULT_CERT_IN_CB;
3499
3500         if (ctrl_interface)
3501                 config->ctrl_interface = os_strdup(ctrl_interface);
3502         if (driver_param)
3503                 config->driver_param = os_strdup(driver_param);
3504
3505         return config;
3506 }
3507
3508
3509 #ifndef CONFIG_NO_STDOUT_DEBUG
3510 /**
3511  * wpa_config_debug_dump_networks - Debug dump of configured networks
3512  * @config: Configuration data from wpa_config_read()
3513  */
3514 void wpa_config_debug_dump_networks(struct wpa_config *config)
3515 {
3516         int prio;
3517         struct wpa_ssid *ssid;
3518
3519         for (prio = 0; prio < config->num_prio; prio++) {
3520                 ssid = config->pssid[prio];
3521                 wpa_printf(MSG_DEBUG, "Priority group %d",
3522                            ssid->priority);
3523                 while (ssid) {
3524                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3525                                    ssid->id,
3526                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3527                         ssid = ssid->pnext;
3528                 }
3529         }
3530 }
3531 #endif /* CONFIG_NO_STDOUT_DEBUG */
3532
3533
3534 struct global_parse_data {
3535         char *name;
3536         int (*parser)(const struct global_parse_data *data,
3537                       struct wpa_config *config, int line, const char *value);
3538         void *param1, *param2, *param3;
3539         unsigned int changed_flag;
3540 };
3541
3542
3543 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3544                                        struct wpa_config *config, int line,
3545                                        const char *pos)
3546 {
3547         int val, *dst;
3548         char *end;
3549
3550         dst = (int *) (((u8 *) config) + (long) data->param1);
3551         val = strtol(pos, &end, 0);
3552         if (*end) {
3553                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3554                            line, pos);
3555                 return -1;
3556         }
3557         *dst = val;
3558
3559         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3560
3561         if (data->param2 && *dst < (long) data->param2) {
3562                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3563                            "min_value=%ld)", line, data->name, *dst,
3564                            (long) data->param2);
3565                 *dst = (long) data->param2;
3566                 return -1;
3567         }
3568
3569         if (data->param3 && *dst > (long) data->param3) {
3570                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3571                            "max_value=%ld)", line, data->name, *dst,
3572                            (long) data->param3);
3573                 *dst = (long) data->param3;
3574                 return -1;
3575         }
3576
3577         return 0;
3578 }
3579
3580
3581 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3582                                        struct wpa_config *config, int line,
3583                                        const char *pos)
3584 {
3585         size_t len;
3586         char **dst, *tmp;
3587
3588         len = os_strlen(pos);
3589         if (data->param2 && len < (size_t) data->param2) {
3590                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3591                            "min_len=%ld)", line, data->name,
3592                            (unsigned long) len, (long) data->param2);
3593                 return -1;
3594         }
3595
3596         if (data->param3 && len > (size_t) data->param3) {
3597                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3598                            "max_len=%ld)", line, data->name,
3599                            (unsigned long) len, (long) data->param3);
3600                 return -1;
3601         }
3602
3603         tmp = os_strdup(pos);
3604         if (tmp == NULL)
3605                 return -1;
3606
3607         dst = (char **) (((u8 *) config) + (long) data->param1);
3608         os_free(*dst);
3609         *dst = tmp;
3610         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3611
3612         return 0;
3613 }
3614
3615
3616 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3617                                      struct wpa_config *config, int line,
3618                                      const char *pos)
3619 {
3620         size_t len;
3621         char *tmp;
3622         int res;
3623
3624         tmp = wpa_config_parse_string(pos, &len);
3625         if (tmp == NULL) {
3626                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3627                            line, data->name);
3628                 return -1;
3629         }
3630
3631         res = wpa_global_config_parse_str(data, config, line, tmp);
3632         os_free(tmp);
3633         return res;
3634 }
3635
3636
3637 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3638                                        struct wpa_config *config, int line,
3639                                        const char *pos)
3640 {
3641         size_t len;
3642         struct wpabuf **dst, *tmp;
3643
3644         len = os_strlen(pos);
3645         if (len & 0x01)
3646                 return -1;
3647
3648         tmp = wpabuf_alloc(len / 2);
3649         if (tmp == NULL)
3650                 return -1;
3651
3652         if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3653                 wpabuf_free(tmp);
3654                 return -1;
3655         }
3656
3657         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3658         wpabuf_free(*dst);
3659         *dst = tmp;
3660         wpa_printf(MSG_DEBUG, "%s", data->name);
3661
3662         return 0;
3663 }
3664
3665
3666 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3667                                         struct wpa_config *config, int line,
3668                                         const char *value)
3669 {
3670         int *freqs;
3671
3672         freqs = wpa_config_parse_int_array(value);
3673         if (freqs == NULL)
3674                 return -1;
3675         if (freqs[0] == 0) {
3676                 os_free(freqs);
3677                 freqs = NULL;
3678         }
3679         os_free(config->freq_list);
3680         config->freq_list = freqs;
3681         return 0;
3682 }
3683
3684
3685 #ifdef CONFIG_P2P
3686 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3687                                         struct wpa_config *config, int line,
3688                                         const char *pos)
3689 {
3690         u32 *dst;
3691         struct hostapd_ip_addr addr;
3692
3693         if (hostapd_parse_ip_addr(pos, &addr) < 0)
3694                 return -1;
3695         if (addr.af != AF_INET)
3696                 return -1;
3697
3698         dst = (u32 *) (((u8 *) config) + (long) data->param1);
3699         os_memcpy(dst, &addr.u.v4.s_addr, 4);
3700         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3701                    WPA_GET_BE32((u8 *) dst));
3702
3703         return 0;
3704 }
3705 #endif /* CONFIG_P2P */
3706
3707
3708 static int wpa_config_process_country(const struct global_parse_data *data,
3709                                       struct wpa_config *config, int line,
3710                                       const char *pos)
3711 {
3712         if (!pos[0] || !pos[1]) {
3713                 wpa_printf(MSG_DEBUG, "Invalid country set");
3714                 return -1;
3715         }
3716         config->country[0] = pos[0];
3717         config->country[1] = pos[1];
3718         wpa_printf(MSG_DEBUG, "country='%c%c'",
3719                    config->country[0], config->country[1]);
3720         return 0;
3721 }
3722
3723
3724 static int wpa_config_process_load_dynamic_eap(
3725         const struct global_parse_data *data, struct wpa_config *config,
3726         int line, const char *so)
3727 {
3728         int ret;
3729         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3730         ret = eap_peer_method_load(so);
3731         if (ret == -2) {
3732                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3733                            "reloading.");
3734         } else if (ret) {
3735                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3736                            "method '%s'.", line, so);
3737                 return -1;
3738         }
3739
3740         return 0;
3741 }
3742
3743
3744 #ifdef CONFIG_WPS
3745
3746 static int wpa_config_process_uuid(const struct global_parse_data *data,
3747                                    struct wpa_config *config, int line,
3748                                    const char *pos)
3749 {
3750         char buf[40];
3751         if (uuid_str2bin(pos, config->uuid)) {
3752                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3753                 return -1;
3754         }
3755         uuid_bin2str(config->uuid, buf, sizeof(buf));
3756         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3757         return 0;
3758 }
3759
3760
3761 static int wpa_config_process_device_type(
3762         const struct global_parse_data *data,
3763         struct wpa_config *config, int line, const char *pos)
3764 {
3765         return wps_dev_type_str2bin(pos, config->device_type);
3766 }
3767
3768
3769 static int wpa_config_process_os_version(const struct global_parse_data *data,
3770                                          struct wpa_config *config, int line,
3771                                          const char *pos)
3772 {
3773         if (hexstr2bin(pos, config->os_version, 4)) {
3774                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3775                 return -1;
3776         }
3777         wpa_printf(MSG_DEBUG, "os_version=%08x",
3778                    WPA_GET_BE32(config->os_version));
3779         return 0;
3780 }
3781
3782
3783 static int wpa_config_process_wps_vendor_ext_m1(
3784         const struct global_parse_data *data,
3785         struct wpa_config *config, int line, const char *pos)
3786 {
3787         struct wpabuf *tmp;
3788         int len = os_strlen(pos) / 2;
3789         u8 *p;
3790
3791         if (!len) {
3792                 wpa_printf(MSG_ERROR, "Line %d: "
3793                            "invalid wps_vendor_ext_m1", line);
3794                 return -1;
3795         }
3796
3797         tmp = wpabuf_alloc(len);
3798         if (tmp) {
3799                 p = wpabuf_put(tmp, len);
3800
3801                 if (hexstr2bin(pos, p, len)) {
3802                         wpa_printf(MSG_ERROR, "Line %d: "
3803                                    "invalid wps_vendor_ext_m1", line);
3804                         wpabuf_free(tmp);
3805                         return -1;
3806                 }
3807
3808                 wpabuf_free(config->wps_vendor_ext_m1);
3809                 config->wps_vendor_ext_m1 = tmp;
3810         } else {
3811                 wpa_printf(MSG_ERROR, "Can not allocate "
3812                            "memory for wps_vendor_ext_m1");
3813                 return -1;
3814         }
3815
3816         return 0;
3817 }
3818
3819 #endif /* CONFIG_WPS */
3820
3821 #ifdef CONFIG_P2P
3822 static int wpa_config_process_sec_device_type(
3823         const struct global_parse_data *data,
3824         struct wpa_config *config, int line, const char *pos)
3825 {
3826         int idx;
3827
3828         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3829                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3830                            "items", line);
3831                 return -1;
3832         }
3833
3834         idx = config->num_sec_device_types;
3835
3836         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3837                 return -1;
3838
3839         config->num_sec_device_types++;
3840         return 0;
3841 }
3842
3843
3844 static int wpa_config_process_p2p_pref_chan(
3845         const struct global_parse_data *data,
3846         struct wpa_config *config, int line, const char *pos)
3847 {
3848         struct p2p_channel *pref = NULL, *n;
3849         unsigned int num = 0;
3850         const char *pos2;
3851         u8 op_class, chan;
3852
3853         /* format: class:chan,class:chan,... */
3854
3855         while (*pos) {
3856                 op_class = atoi(pos);
3857                 pos2 = os_strchr(pos, ':');
3858                 if (pos2 == NULL)
3859                         goto fail;
3860                 pos2++;
3861                 chan = atoi(pos2);
3862
3863                 n = os_realloc_array(pref, num + 1,
3864                                      sizeof(struct p2p_channel));
3865                 if (n == NULL)
3866                         goto fail;
3867                 pref = n;
3868                 pref[num].op_class = op_class;
3869                 pref[num].chan = chan;
3870                 num++;
3871
3872                 pos = os_strchr(pos2, ',');
3873                 if (pos == NULL)
3874                         break;
3875                 pos++;
3876         }
3877
3878         os_free(config->p2p_pref_chan);
3879         config->p2p_pref_chan = pref;
3880         config->num_p2p_pref_chan = num;
3881         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3882                     (u8 *) config->p2p_pref_chan,
3883                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3884
3885         return 0;
3886
3887 fail:
3888         os_free(pref);
3889         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3890         return -1;
3891 }
3892
3893
3894 static int wpa_config_process_p2p_no_go_freq(
3895         const struct global_parse_data *data,
3896         struct wpa_config *config, int line, const char *pos)
3897 {
3898         int ret;
3899
3900         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3901         if (ret < 0) {
3902                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3903                 return -1;
3904         }
3905
3906         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3907                    config->p2p_no_go_freq.num);
3908
3909         return 0;
3910 }
3911
3912 #endif /* CONFIG_P2P */
3913
3914
3915 static int wpa_config_process_hessid(
3916         const struct global_parse_data *data,
3917         struct wpa_config *config, int line, const char *pos)
3918 {
3919         if (hwaddr_aton2(pos, config->hessid) < 0) {
3920                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3921                            line, pos);
3922                 return -1;
3923         }
3924
3925         return 0;
3926 }
3927
3928
3929 static int wpa_config_process_sae_groups(
3930         const struct global_parse_data *data,
3931         struct wpa_config *config, int line, const char *pos)
3932 {
3933         int *groups = wpa_config_parse_int_array(pos);
3934         if (groups == NULL) {
3935                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3936                            line, pos);
3937                 return -1;
3938         }
3939
3940         os_free(config->sae_groups);
3941         config->sae_groups = groups;
3942
3943         return 0;
3944 }
3945
3946
3947 static int wpa_config_process_ap_vendor_elements(
3948         const struct global_parse_data *data,
3949         struct wpa_config *config, int line, const char *pos)
3950 {
3951         struct wpabuf *tmp;
3952         int len = os_strlen(pos) / 2;
3953         u8 *p;
3954
3955         if (!len) {
3956                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3957                            line);
3958                 return -1;
3959         }
3960
3961         tmp = wpabuf_alloc(len);
3962         if (tmp) {
3963                 p = wpabuf_put(tmp, len);
3964
3965                 if (hexstr2bin(pos, p, len)) {
3966                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3967                                    "ap_vendor_elements", line);
3968                         wpabuf_free(tmp);
3969                         return -1;
3970                 }
3971
3972                 wpabuf_free(config->ap_vendor_elements);
3973                 config->ap_vendor_elements = tmp;
3974         } else {
3975                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
3976                            "ap_vendor_elements");
3977                 return -1;
3978         }
3979
3980         return 0;
3981 }
3982
3983
3984 #ifdef CONFIG_CTRL_IFACE
3985 static int wpa_config_process_no_ctrl_interface(
3986         const struct global_parse_data *data,
3987         struct wpa_config *config, int line, const char *pos)
3988 {
3989         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
3990         os_free(config->ctrl_interface);
3991         config->ctrl_interface = NULL;
3992         return 0;
3993 }
3994 #endif /* CONFIG_CTRL_IFACE */
3995
3996
3997 #ifdef OFFSET
3998 #undef OFFSET
3999 #endif /* OFFSET */
4000 /* OFFSET: Get offset of a variable within the wpa_config structure */
4001 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4002
4003 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
4004 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
4005 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
4006 #define INT(f) _INT(f), NULL, NULL
4007 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4008 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
4009 #define STR(f) _STR(f), NULL, NULL
4010 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4011 #define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
4012 #define IPV4(f) #f, wpa_global_config_parse_ipv4, OFFSET(f), NULL, NULL
4013
4014 static const struct global_parse_data global_fields[] = {
4015 #ifdef CONFIG_CTRL_IFACE
4016         { STR(ctrl_interface), 0 },
4017         { FUNC_NO_VAR(no_ctrl_interface), 0 },
4018         { STR(ctrl_interface_group), 0 } /* deprecated */,
4019 #endif /* CONFIG_CTRL_IFACE */
4020 #ifdef CONFIG_MACSEC
4021         { INT_RANGE(eapol_version, 1, 3), 0 },
4022 #else /* CONFIG_MACSEC */
4023         { INT_RANGE(eapol_version, 1, 2), 0 },
4024 #endif /* CONFIG_MACSEC */
4025         { INT(ap_scan), 0 },
4026         { FUNC(bgscan), 0 },
4027 #ifdef CONFIG_MESH
4028         { INT(user_mpm), 0 },
4029         { INT_RANGE(max_peer_links, 0, 255), 0 },
4030         { INT(mesh_max_inactivity), 0 },
4031 #endif /* CONFIG_MESH */
4032         { INT(disable_scan_offload), 0 },
4033         { INT(fast_reauth), 0 },
4034         { STR(opensc_engine_path), 0 },
4035         { STR(pkcs11_engine_path), 0 },
4036         { STR(pkcs11_module_path), 0 },
4037         { STR(openssl_ciphers), 0 },
4038         { STR(pcsc_reader), 0 },
4039         { STR(pcsc_pin), 0 },
4040         { INT(external_sim), 0 },
4041         { STR(driver_param), 0 },
4042         { INT(dot11RSNAConfigPMKLifetime), 0 },
4043         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4044         { INT(dot11RSNAConfigSATimeout), 0 },
4045 #ifndef CONFIG_NO_CONFIG_WRITE
4046         { INT(update_config), 0 },
4047 #endif /* CONFIG_NO_CONFIG_WRITE */
4048         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4049 #ifdef CONFIG_WPS
4050         { FUNC(uuid), CFG_CHANGED_UUID },
4051         { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
4052         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4053         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4054         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4055         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4056         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4057         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4058         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4059         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4060         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4061 #endif /* CONFIG_WPS */
4062 #ifdef CONFIG_P2P
4063         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4064         { INT(p2p_listen_reg_class), 0 },
4065         { INT(p2p_listen_channel), 0 },
4066         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4067         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4068         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4069         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4070         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4071         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4072         { INT(p2p_group_idle), 0 },
4073         { INT_RANGE(p2p_passphrase_len, 8, 63),
4074           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4075         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4076         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4077         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4078         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4079         { INT(p2p_go_ht40), 0 },
4080         { INT(p2p_go_vht), 0 },
4081         { INT(p2p_disabled), 0 },
4082         { INT(p2p_no_group_iface), 0 },
4083         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4084         { IPV4(ip_addr_go), 0 },
4085         { IPV4(ip_addr_mask), 0 },
4086         { IPV4(ip_addr_start), 0 },
4087         { IPV4(ip_addr_end), 0 },
4088 #endif /* CONFIG_P2P */
4089         { FUNC(country), CFG_CHANGED_COUNTRY },
4090         { INT(bss_max_count), 0 },
4091         { INT(bss_expiration_age), 0 },
4092         { INT(bss_expiration_scan_count), 0 },
4093         { INT_RANGE(filter_ssids, 0, 1), 0 },
4094         { INT_RANGE(filter_rssi, -100, 0), 0 },
4095         { INT(max_num_sta), 0 },
4096         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4097 #ifdef CONFIG_HS20
4098         { INT_RANGE(hs20, 0, 1), 0 },
4099 #endif /* CONFIG_HS20 */
4100         { INT_RANGE(interworking, 0, 1), 0 },
4101         { FUNC(hessid), 0 },
4102         { INT_RANGE(access_network_type, 0, 15), 0 },
4103         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4104         { STR(autoscan), 0 },
4105         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4106           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4107         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4108         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4109         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4110         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4111         { INT(p2p_go_max_inactivity), 0 },
4112         { INT_RANGE(auto_interworking, 0, 1), 0 },
4113         { INT(okc), 0 },
4114         { INT(pmf), 0 },
4115         { FUNC(sae_groups), 0 },
4116         { INT(dtim_period), 0 },
4117         { INT(beacon_int), 0 },
4118         { FUNC(ap_vendor_elements), 0 },
4119         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4120         { FUNC(freq_list), 0 },
4121         { INT(scan_cur_freq), 0 },
4122         { INT(sched_scan_interval), 0 },
4123         { INT(tdls_external_control), 0},
4124         { STR(osu_dir), 0 },
4125         { STR(wowlan_triggers), 0 },
4126         { INT(p2p_search_delay), 0},
4127         { INT(mac_addr), 0 },
4128         { INT(rand_addr_lifetime), 0 },
4129         { INT(preassoc_mac_addr), 0 },
4130         { INT(key_mgmt_offload), 0},
4131 };
4132
4133 #undef FUNC
4134 #undef _INT
4135 #undef INT
4136 #undef INT_RANGE
4137 #undef _STR
4138 #undef STR
4139 #undef STR_RANGE
4140 #undef BIN
4141 #undef IPV4
4142 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4143
4144
4145 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4146 {
4147         size_t i;
4148         int ret = 0;
4149
4150         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4151                 const struct global_parse_data *field = &global_fields[i];
4152                 size_t flen = os_strlen(field->name);
4153                 if (os_strncmp(pos, field->name, flen) != 0 ||
4154                     pos[flen] != '=')
4155                         continue;
4156
4157                 if (field->parser(field, config, line, pos + flen + 1)) {
4158                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4159                                    "parse '%s'.", line, pos);
4160                         ret = -1;
4161                 }
4162                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4163                         config->wps_nfc_pw_from_config = 1;
4164                 config->changed_parameters |= field->changed_flag;
4165                 break;
4166         }
4167         if (i == NUM_GLOBAL_FIELDS) {
4168 #ifdef CONFIG_AP
4169                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4170                         char *tmp = os_strchr(pos, '=');
4171                         if (tmp == NULL) {
4172                                 if (line < 0)
4173                                         return -1;
4174                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4175                                            "'%s'", line, pos);
4176                                 return -1;
4177                         }
4178                         *tmp++ = '\0';
4179                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4180                                                   tmp)) {
4181                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4182                                            "AC item", line);
4183                                 return -1;
4184                         }
4185                 }
4186 #endif /* CONFIG_AP */
4187                 if (line < 0)
4188                         return -1;
4189                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4190                            line, pos);
4191                 ret = -1;
4192         }
4193
4194         return ret;
4195 }