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->bgscan);
2238         os_free(config->wowlan_triggers);
2239         os_free(config);
2240 }
2241
2242
2243 /**
2244  * wpa_config_foreach_network - Iterate over each configured network
2245  * @config: Configuration data from wpa_config_read()
2246  * @func: Callback function to process each network
2247  * @arg: Opaque argument to pass to callback function
2248  *
2249  * Iterate over the set of configured networks calling the specified
2250  * function for each item. We guard against callbacks removing the
2251  * supplied network.
2252  */
2253 void wpa_config_foreach_network(struct wpa_config *config,
2254                                 void (*func)(void *, struct wpa_ssid *),
2255                                 void *arg)
2256 {
2257         struct wpa_ssid *ssid, *next;
2258
2259         ssid = config->ssid;
2260         while (ssid) {
2261                 next = ssid->next;
2262                 func(arg, ssid);
2263                 ssid = next;
2264         }
2265 }
2266
2267
2268 /**
2269  * wpa_config_get_network - Get configured network based on id
2270  * @config: Configuration data from wpa_config_read()
2271  * @id: Unique network id to search for
2272  * Returns: Network configuration or %NULL if not found
2273  */
2274 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2275 {
2276         struct wpa_ssid *ssid;
2277
2278         ssid = config->ssid;
2279         while (ssid) {
2280                 if (id == ssid->id)
2281                         break;
2282                 ssid = ssid->next;
2283         }
2284
2285         return ssid;
2286 }
2287
2288
2289 /**
2290  * wpa_config_add_network - Add a new network with empty configuration
2291  * @config: Configuration data from wpa_config_read()
2292  * Returns: The new network configuration or %NULL if operation failed
2293  */
2294 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2295 {
2296         int id;
2297         struct wpa_ssid *ssid, *last = NULL;
2298
2299         id = -1;
2300         ssid = config->ssid;
2301         while (ssid) {
2302                 if (ssid->id > id)
2303                         id = ssid->id;
2304                 last = ssid;
2305                 ssid = ssid->next;
2306         }
2307         id++;
2308
2309         ssid = os_zalloc(sizeof(*ssid));
2310         if (ssid == NULL)
2311                 return NULL;
2312         ssid->id = id;
2313         dl_list_init(&ssid->psk_list);
2314         if (last)
2315                 last->next = ssid;
2316         else
2317                 config->ssid = ssid;
2318
2319         wpa_config_update_prio_list(config);
2320
2321         return ssid;
2322 }
2323
2324
2325 /**
2326  * wpa_config_remove_network - Remove a configured network based on id
2327  * @config: Configuration data from wpa_config_read()
2328  * @id: Unique network id to search for
2329  * Returns: 0 on success, or -1 if the network was not found
2330  */
2331 int wpa_config_remove_network(struct wpa_config *config, int id)
2332 {
2333         struct wpa_ssid *ssid, *prev = NULL;
2334
2335         ssid = config->ssid;
2336         while (ssid) {
2337                 if (id == ssid->id)
2338                         break;
2339                 prev = ssid;
2340                 ssid = ssid->next;
2341         }
2342
2343         if (ssid == NULL)
2344                 return -1;
2345
2346         if (prev)
2347                 prev->next = ssid->next;
2348         else
2349                 config->ssid = ssid->next;
2350
2351         wpa_config_update_prio_list(config);
2352         wpa_config_free_ssid(ssid);
2353         return 0;
2354 }
2355
2356
2357 /**
2358  * wpa_config_set_network_defaults - Set network default values
2359  * @ssid: Pointer to network configuration data
2360  */
2361 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2362 {
2363         ssid->proto = DEFAULT_PROTO;
2364         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2365         ssid->group_cipher = DEFAULT_GROUP;
2366         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2367         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2368 #ifdef IEEE8021X_EAPOL
2369         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2370         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2371         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2372         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2373 #endif /* IEEE8021X_EAPOL */
2374 #ifdef CONFIG_MESH
2375         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2376         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2377         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2378         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2379 #endif /* CONFIG_MESH */
2380 #ifdef CONFIG_HT_OVERRIDES
2381         ssid->disable_ht = DEFAULT_DISABLE_HT;
2382         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2383         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2384         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2385         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2386         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2387         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2388 #endif /* CONFIG_HT_OVERRIDES */
2389 #ifdef CONFIG_VHT_OVERRIDES
2390         ssid->vht_rx_mcs_nss_1 = -1;
2391         ssid->vht_rx_mcs_nss_2 = -1;
2392         ssid->vht_rx_mcs_nss_3 = -1;
2393         ssid->vht_rx_mcs_nss_4 = -1;
2394         ssid->vht_rx_mcs_nss_5 = -1;
2395         ssid->vht_rx_mcs_nss_6 = -1;
2396         ssid->vht_rx_mcs_nss_7 = -1;
2397         ssid->vht_rx_mcs_nss_8 = -1;
2398         ssid->vht_tx_mcs_nss_1 = -1;
2399         ssid->vht_tx_mcs_nss_2 = -1;
2400         ssid->vht_tx_mcs_nss_3 = -1;
2401         ssid->vht_tx_mcs_nss_4 = -1;
2402         ssid->vht_tx_mcs_nss_5 = -1;
2403         ssid->vht_tx_mcs_nss_6 = -1;
2404         ssid->vht_tx_mcs_nss_7 = -1;
2405         ssid->vht_tx_mcs_nss_8 = -1;
2406 #endif /* CONFIG_VHT_OVERRIDES */
2407         ssid->proactive_key_caching = -1;
2408 #ifdef CONFIG_IEEE80211W
2409         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2410 #endif /* CONFIG_IEEE80211W */
2411         ssid->mac_addr = -1;
2412 }
2413
2414
2415 /**
2416  * wpa_config_set - Set a variable in network configuration
2417  * @ssid: Pointer to network configuration data
2418  * @var: Variable name, e.g., "ssid"
2419  * @value: Variable value
2420  * @line: Line number in configuration file or 0 if not used
2421  * Returns: 0 on success, -1 on failure
2422  *
2423  * This function can be used to set network configuration variables based on
2424  * both the configuration file and management interface input. The value
2425  * parameter must be in the same format as the text-based configuration file is
2426  * using. For example, strings are using double quotation marks.
2427  */
2428 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2429                    int line)
2430 {
2431         size_t i;
2432         int ret = 0;
2433
2434         if (ssid == NULL || var == NULL || value == NULL)
2435                 return -1;
2436
2437         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2438                 const struct parse_data *field = &ssid_fields[i];
2439                 if (os_strcmp(var, field->name) != 0)
2440                         continue;
2441
2442                 if (field->parser(field, ssid, line, value)) {
2443                         if (line) {
2444                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2445                                            "parse %s '%s'.", line, var, value);
2446                         }
2447                         ret = -1;
2448                 }
2449                 break;
2450         }
2451         if (i == NUM_SSID_FIELDS) {
2452                 if (line) {
2453                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2454                                    "'%s'.", line, var);
2455                 }
2456                 ret = -1;
2457         }
2458
2459         return ret;
2460 }
2461
2462
2463 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2464                           const char *value)
2465 {
2466         size_t len;
2467         char *buf;
2468         int ret;
2469
2470         len = os_strlen(value);
2471         buf = os_malloc(len + 3);
2472         if (buf == NULL)
2473                 return -1;
2474         buf[0] = '"';
2475         os_memcpy(buf + 1, value, len);
2476         buf[len + 1] = '"';
2477         buf[len + 2] = '\0';
2478         ret = wpa_config_set(ssid, var, buf, 0);
2479         os_free(buf);
2480         return ret;
2481 }
2482
2483
2484 /**
2485  * wpa_config_get_all - Get all options from network configuration
2486  * @ssid: Pointer to network configuration data
2487  * @get_keys: Determines if keys/passwords will be included in returned list
2488  *      (if they may be exported)
2489  * Returns: %NULL terminated list of all set keys and their values in the form
2490  * of [key1, val1, key2, val2, ... , NULL]
2491  *
2492  * This function can be used to get list of all configured network properties.
2493  * The caller is responsible for freeing the returned list and all its
2494  * elements.
2495  */
2496 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2497 {
2498         const struct parse_data *field;
2499         char *key, *value;
2500         size_t i;
2501         char **props;
2502         int fields_num;
2503
2504         get_keys = get_keys && ssid->export_keys;
2505
2506         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2507         if (!props)
2508                 return NULL;
2509
2510         fields_num = 0;
2511         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2512                 field = &ssid_fields[i];
2513                 if (field->key_data && !get_keys)
2514                         continue;
2515                 value = field->writer(field, ssid);
2516                 if (value == NULL)
2517                         continue;
2518                 if (os_strlen(value) == 0) {
2519                         os_free(value);
2520                         continue;
2521                 }
2522
2523                 key = os_strdup(field->name);
2524                 if (key == NULL) {
2525                         os_free(value);
2526                         goto err;
2527                 }
2528
2529                 props[fields_num * 2] = key;
2530                 props[fields_num * 2 + 1] = value;
2531
2532                 fields_num++;
2533         }
2534
2535         return props;
2536
2537 err:
2538         value = *props;
2539         while (value)
2540                 os_free(value++);
2541         os_free(props);
2542         return NULL;
2543 }
2544
2545
2546 #ifndef NO_CONFIG_WRITE
2547 /**
2548  * wpa_config_get - Get a variable in network configuration
2549  * @ssid: Pointer to network configuration data
2550  * @var: Variable name, e.g., "ssid"
2551  * Returns: Value of the variable or %NULL on failure
2552  *
2553  * This function can be used to get network configuration variables. The
2554  * returned value is a copy of the configuration variable in text format, i.e,.
2555  * the same format that the text-based configuration file and wpa_config_set()
2556  * are using for the value. The caller is responsible for freeing the returned
2557  * value.
2558  */
2559 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2560 {
2561         size_t i;
2562
2563         if (ssid == NULL || var == NULL)
2564                 return NULL;
2565
2566         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2567                 const struct parse_data *field = &ssid_fields[i];
2568                 if (os_strcmp(var, field->name) == 0)
2569                         return field->writer(field, ssid);
2570         }
2571
2572         return NULL;
2573 }
2574
2575
2576 /**
2577  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2578  * @ssid: Pointer to network configuration data
2579  * @var: Variable name, e.g., "ssid"
2580  * Returns: Value of the variable or %NULL on failure
2581  *
2582  * This function can be used to get network configuration variable like
2583  * wpa_config_get(). The only difference is that this functions does not expose
2584  * key/password material from the configuration. In case a key/password field
2585  * is requested, the returned value is an empty string or %NULL if the variable
2586  * is not set or "*" if the variable is set (regardless of its value). The
2587  * returned value is a copy of the configuration variable in text format, i.e,.
2588  * the same format that the text-based configuration file and wpa_config_set()
2589  * are using for the value. The caller is responsible for freeing the returned
2590  * value.
2591  */
2592 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2593 {
2594         size_t i;
2595
2596         if (ssid == NULL || var == NULL)
2597                 return NULL;
2598
2599         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2600                 const struct parse_data *field = &ssid_fields[i];
2601                 if (os_strcmp(var, field->name) == 0) {
2602                         char *res = field->writer(field, ssid);
2603                         if (field->key_data) {
2604                                 if (res && res[0]) {
2605                                         wpa_printf(MSG_DEBUG, "Do not allow "
2606                                                    "key_data field to be "
2607                                                    "exposed");
2608                                         str_clear_free(res);
2609                                         return os_strdup("*");
2610                                 }
2611
2612                                 os_free(res);
2613                                 return NULL;
2614                         }
2615                         return res;
2616                 }
2617         }
2618
2619         return NULL;
2620 }
2621 #endif /* NO_CONFIG_WRITE */
2622
2623
2624 /**
2625  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2626  * @ssid: Pointer to network configuration data
2627  *
2628  * This function must be called to update WPA PSK when either SSID or the
2629  * passphrase has changed for the network configuration.
2630  */
2631 void wpa_config_update_psk(struct wpa_ssid *ssid)
2632 {
2633 #ifndef CONFIG_NO_PBKDF2
2634         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2635                     ssid->psk, PMK_LEN);
2636         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2637                         ssid->psk, PMK_LEN);
2638         ssid->psk_set = 1;
2639 #endif /* CONFIG_NO_PBKDF2 */
2640 }
2641
2642
2643 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2644                                               const char *value)
2645 {
2646         u8 *proto;
2647         int **port;
2648         int *ports, *nports;
2649         const char *pos;
2650         unsigned int num_ports;
2651
2652         proto = os_realloc_array(cred->req_conn_capab_proto,
2653                                  cred->num_req_conn_capab + 1, sizeof(u8));
2654         if (proto == NULL)
2655                 return -1;
2656         cred->req_conn_capab_proto = proto;
2657
2658         port = os_realloc_array(cred->req_conn_capab_port,
2659                                 cred->num_req_conn_capab + 1, sizeof(int *));
2660         if (port == NULL)
2661                 return -1;
2662         cred->req_conn_capab_port = port;
2663
2664         proto[cred->num_req_conn_capab] = atoi(value);
2665
2666         pos = os_strchr(value, ':');
2667         if (pos == NULL) {
2668                 port[cred->num_req_conn_capab] = NULL;
2669                 cred->num_req_conn_capab++;
2670                 return 0;
2671         }
2672         pos++;
2673
2674         ports = NULL;
2675         num_ports = 0;
2676
2677         while (*pos) {
2678                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2679                 if (nports == NULL) {
2680                         os_free(ports);
2681                         return -1;
2682                 }
2683                 ports = nports;
2684                 ports[num_ports++] = atoi(pos);
2685
2686                 pos = os_strchr(pos, ',');
2687                 if (pos == NULL)
2688                         break;
2689                 pos++;
2690         }
2691
2692         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2693         if (nports == NULL) {
2694                 os_free(ports);
2695                 return -1;
2696         }
2697         ports = nports;
2698         ports[num_ports] = -1;
2699
2700         port[cred->num_req_conn_capab] = ports;
2701         cred->num_req_conn_capab++;
2702         return 0;
2703 }
2704
2705
2706 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2707                         const char *value, int line)
2708 {
2709         char *val;
2710         size_t len;
2711
2712         if (os_strcmp(var, "temporary") == 0) {
2713                 cred->temporary = atoi(value);
2714                 return 0;
2715         }
2716
2717         if (os_strcmp(var, "priority") == 0) {
2718                 cred->priority = atoi(value);
2719                 return 0;
2720         }
2721
2722         if (os_strcmp(var, "sp_priority") == 0) {
2723                 int prio = atoi(value);
2724                 if (prio < 0 || prio > 255)
2725                         return -1;
2726                 cred->sp_priority = prio;
2727                 return 0;
2728         }
2729
2730         if (os_strcmp(var, "pcsc") == 0) {
2731                 cred->pcsc = atoi(value);
2732                 return 0;
2733         }
2734
2735         if (os_strcmp(var, "eap") == 0) {
2736                 struct eap_method_type method;
2737                 method.method = eap_peer_get_type(value, &method.vendor);
2738                 if (method.vendor == EAP_VENDOR_IETF &&
2739                     method.method == EAP_TYPE_NONE) {
2740                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2741                                    "for a credential", line, value);
2742                         return -1;
2743                 }
2744                 os_free(cred->eap_method);
2745                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2746                 if (cred->eap_method == NULL)
2747                         return -1;
2748                 os_memcpy(cred->eap_method, &method, sizeof(method));
2749                 return 0;
2750         }
2751
2752         if (os_strcmp(var, "password") == 0 &&
2753             os_strncmp(value, "ext:", 4) == 0) {
2754                 str_clear_free(cred->password);
2755                 cred->password = os_strdup(value);
2756                 cred->ext_password = 1;
2757                 return 0;
2758         }
2759
2760         if (os_strcmp(var, "update_identifier") == 0) {
2761                 cred->update_identifier = atoi(value);
2762                 return 0;
2763         }
2764
2765         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2766                 cred->min_dl_bandwidth_home = atoi(value);
2767                 return 0;
2768         }
2769
2770         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2771                 cred->min_ul_bandwidth_home = atoi(value);
2772                 return 0;
2773         }
2774
2775         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2776                 cred->min_dl_bandwidth_roaming = atoi(value);
2777                 return 0;
2778         }
2779
2780         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2781                 cred->min_ul_bandwidth_roaming = atoi(value);
2782                 return 0;
2783         }
2784
2785         if (os_strcmp(var, "max_bss_load") == 0) {
2786                 cred->max_bss_load = atoi(value);
2787                 return 0;
2788         }
2789
2790         if (os_strcmp(var, "req_conn_capab") == 0)
2791                 return wpa_config_set_cred_req_conn_capab(cred, value);
2792
2793         if (os_strcmp(var, "ocsp") == 0) {
2794                 cred->ocsp = atoi(value);
2795                 return 0;
2796         }
2797
2798         if (os_strcmp(var, "sim_num") == 0) {
2799                 cred->sim_num = atoi(value);
2800                 return 0;
2801         }
2802
2803         val = wpa_config_parse_string(value, &len);
2804         if (val == NULL) {
2805                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2806                            "value '%s'.", line, var, value);
2807                 return -1;
2808         }
2809
2810         if (os_strcmp(var, "realm") == 0) {
2811                 os_free(cred->realm);
2812                 cred->realm = val;
2813                 return 0;
2814         }
2815
2816         if (os_strcmp(var, "username") == 0) {
2817                 str_clear_free(cred->username);
2818                 cred->username = val;
2819                 return 0;
2820         }
2821
2822         if (os_strcmp(var, "password") == 0) {
2823                 str_clear_free(cred->password);
2824                 cred->password = val;
2825                 cred->ext_password = 0;
2826                 return 0;
2827         }
2828
2829         if (os_strcmp(var, "ca_cert") == 0) {
2830                 os_free(cred->ca_cert);
2831                 cred->ca_cert = val;
2832                 return 0;
2833         }
2834
2835         if (os_strcmp(var, "client_cert") == 0) {
2836                 os_free(cred->client_cert);
2837                 cred->client_cert = val;
2838                 return 0;
2839         }
2840
2841         if (os_strcmp(var, "private_key") == 0) {
2842                 os_free(cred->private_key);
2843                 cred->private_key = val;
2844                 return 0;
2845         }
2846
2847         if (os_strcmp(var, "private_key_passwd") == 0) {
2848                 str_clear_free(cred->private_key_passwd);
2849                 cred->private_key_passwd = val;
2850                 return 0;
2851         }
2852
2853         if (os_strcmp(var, "imsi") == 0) {
2854                 os_free(cred->imsi);
2855                 cred->imsi = val;
2856                 return 0;
2857         }
2858
2859         if (os_strcmp(var, "milenage") == 0) {
2860                 str_clear_free(cred->milenage);
2861                 cred->milenage = val;
2862                 return 0;
2863         }
2864
2865         if (os_strcmp(var, "domain_suffix_match") == 0) {
2866                 os_free(cred->domain_suffix_match);
2867                 cred->domain_suffix_match = val;
2868                 return 0;
2869         }
2870
2871         if (os_strcmp(var, "domain") == 0) {
2872                 char **new_domain;
2873                 new_domain = os_realloc_array(cred->domain,
2874                                               cred->num_domain + 1,
2875                                               sizeof(char *));
2876                 if (new_domain == NULL) {
2877                         os_free(val);
2878                         return -1;
2879                 }
2880                 new_domain[cred->num_domain++] = val;
2881                 cred->domain = new_domain;
2882                 return 0;
2883         }
2884
2885         if (os_strcmp(var, "phase1") == 0) {
2886                 os_free(cred->phase1);
2887                 cred->phase1 = val;
2888                 return 0;
2889         }
2890
2891         if (os_strcmp(var, "phase2") == 0) {
2892                 os_free(cred->phase2);
2893                 cred->phase2 = val;
2894                 return 0;
2895         }
2896
2897         if (os_strcmp(var, "roaming_consortium") == 0) {
2898                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2899                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2900                                    "roaming_consortium length %d (3..15 "
2901                                    "expected)", line, (int) len);
2902                         os_free(val);
2903                         return -1;
2904                 }
2905                 os_memcpy(cred->roaming_consortium, val, len);
2906                 cred->roaming_consortium_len = len;
2907                 os_free(val);
2908                 return 0;
2909         }
2910
2911         if (os_strcmp(var, "required_roaming_consortium") == 0) {
2912                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2913                 {
2914                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2915                                    "required_roaming_consortium length %d "
2916                                    "(3..15 expected)", line, (int) len);
2917                         os_free(val);
2918                         return -1;
2919                 }
2920                 os_memcpy(cred->required_roaming_consortium, val, len);
2921                 cred->required_roaming_consortium_len = len;
2922                 os_free(val);
2923                 return 0;
2924         }
2925
2926         if (os_strcmp(var, "excluded_ssid") == 0) {
2927                 struct excluded_ssid *e;
2928
2929                 if (len > MAX_SSID_LEN) {
2930                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2931                                    "excluded_ssid length %d", line, (int) len);
2932                         os_free(val);
2933                         return -1;
2934                 }
2935
2936                 e = os_realloc_array(cred->excluded_ssid,
2937                                      cred->num_excluded_ssid + 1,
2938                                      sizeof(struct excluded_ssid));
2939                 if (e == NULL) {
2940                         os_free(val);
2941                         return -1;
2942                 }
2943                 cred->excluded_ssid = e;
2944
2945                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2946                 os_memcpy(e->ssid, val, len);
2947                 e->ssid_len = len;
2948
2949                 os_free(val);
2950
2951                 return 0;
2952         }
2953
2954         if (os_strcmp(var, "roaming_partner") == 0) {
2955                 struct roaming_partner *p;
2956                 char *pos;
2957
2958                 p = os_realloc_array(cred->roaming_partner,
2959                                      cred->num_roaming_partner + 1,
2960                                      sizeof(struct roaming_partner));
2961                 if (p == NULL) {
2962                         os_free(val);
2963                         return -1;
2964                 }
2965                 cred->roaming_partner = p;
2966
2967                 p = &cred->roaming_partner[cred->num_roaming_partner];
2968
2969                 pos = os_strchr(val, ',');
2970                 if (pos == NULL) {
2971                         os_free(val);
2972                         return -1;
2973                 }
2974                 *pos++ = '\0';
2975                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
2976                         os_free(val);
2977                         return -1;
2978                 }
2979                 os_memcpy(p->fqdn, val, pos - val);
2980
2981                 p->exact_match = atoi(pos);
2982
2983                 pos = os_strchr(pos, ',');
2984                 if (pos == NULL) {
2985                         os_free(val);
2986                         return -1;
2987                 }
2988                 *pos++ = '\0';
2989
2990                 p->priority = atoi(pos);
2991
2992                 pos = os_strchr(pos, ',');
2993                 if (pos == NULL) {
2994                         os_free(val);
2995                         return -1;
2996                 }
2997                 *pos++ = '\0';
2998
2999                 if (os_strlen(pos) >= sizeof(p->country)) {
3000                         os_free(val);
3001                         return -1;
3002                 }
3003                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3004
3005                 cred->num_roaming_partner++;
3006                 os_free(val);
3007
3008                 return 0;
3009         }
3010
3011         if (os_strcmp(var, "provisioning_sp") == 0) {
3012                 os_free(cred->provisioning_sp);
3013                 cred->provisioning_sp = val;
3014                 return 0;
3015         }
3016
3017         if (line) {
3018                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3019                            line, var);
3020         }
3021
3022         os_free(val);
3023
3024         return -1;
3025 }
3026
3027
3028 static char * alloc_int_str(int val)
3029 {
3030         const unsigned int bufsize = 20;
3031         char *buf;
3032         int res;
3033
3034         buf = os_malloc(bufsize);
3035         if (buf == NULL)
3036                 return NULL;
3037         res = os_snprintf(buf, bufsize, "%d", val);
3038         if (os_snprintf_error(bufsize, res)) {
3039                 os_free(buf);
3040                 buf = NULL;
3041         }
3042         return buf;
3043 }
3044
3045
3046 static char * alloc_strdup(const char *str)
3047 {
3048         if (str == NULL)
3049                 return NULL;
3050         return os_strdup(str);
3051 }
3052
3053
3054 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3055 {
3056         if (os_strcmp(var, "temporary") == 0)
3057                 return alloc_int_str(cred->temporary);
3058
3059         if (os_strcmp(var, "priority") == 0)
3060                 return alloc_int_str(cred->priority);
3061
3062         if (os_strcmp(var, "sp_priority") == 0)
3063                 return alloc_int_str(cred->sp_priority);
3064
3065         if (os_strcmp(var, "pcsc") == 0)
3066                 return alloc_int_str(cred->pcsc);
3067
3068         if (os_strcmp(var, "eap") == 0) {
3069                 if (!cred->eap_method)
3070                         return NULL;
3071                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3072                                                  cred->eap_method[0].method));
3073         }
3074
3075         if (os_strcmp(var, "update_identifier") == 0)
3076                 return alloc_int_str(cred->update_identifier);
3077
3078         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3079                 return alloc_int_str(cred->min_dl_bandwidth_home);
3080
3081         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3082                 return alloc_int_str(cred->min_ul_bandwidth_home);
3083
3084         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3085                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3086
3087         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3088                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3089
3090         if (os_strcmp(var, "max_bss_load") == 0)
3091                 return alloc_int_str(cred->max_bss_load);
3092
3093         if (os_strcmp(var, "req_conn_capab") == 0) {
3094                 unsigned int i;
3095                 char *buf, *end, *pos;
3096                 int ret;
3097
3098                 if (!cred->num_req_conn_capab)
3099                         return NULL;
3100
3101                 buf = os_malloc(4000);
3102                 if (buf == NULL)
3103                         return NULL;
3104                 pos = buf;
3105                 end = pos + 4000;
3106                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3107                         int *ports;
3108
3109                         ret = os_snprintf(pos, end - pos, "%s%u",
3110                                           i > 0 ? "\n" : "",
3111                                           cred->req_conn_capab_proto[i]);
3112                         if (os_snprintf_error(end - pos, ret))
3113                                 return buf;
3114                         pos += ret;
3115
3116                         ports = cred->req_conn_capab_port[i];
3117                         if (ports) {
3118                                 int j;
3119                                 for (j = 0; ports[j] != -1; j++) {
3120                                         ret = os_snprintf(pos, end - pos,
3121                                                           "%s%d",
3122                                                           j > 0 ? "," : ":",
3123                                                           ports[j]);
3124                                         if (os_snprintf_error(end - pos, ret))
3125                                                 return buf;
3126                                         pos += ret;
3127                                 }
3128                         }
3129                 }
3130
3131                 return buf;
3132         }
3133
3134         if (os_strcmp(var, "ocsp") == 0)
3135                 return alloc_int_str(cred->ocsp);
3136
3137         if (os_strcmp(var, "realm") == 0)
3138                 return alloc_strdup(cred->realm);
3139
3140         if (os_strcmp(var, "username") == 0)
3141                 return alloc_strdup(cred->username);
3142
3143         if (os_strcmp(var, "password") == 0) {
3144                 if (!cred->password)
3145                         return NULL;
3146                 return alloc_strdup("*");
3147         }
3148
3149         if (os_strcmp(var, "ca_cert") == 0)
3150                 return alloc_strdup(cred->ca_cert);
3151
3152         if (os_strcmp(var, "client_cert") == 0)
3153                 return alloc_strdup(cred->client_cert);
3154
3155         if (os_strcmp(var, "private_key") == 0)
3156                 return alloc_strdup(cred->private_key);
3157
3158         if (os_strcmp(var, "private_key_passwd") == 0) {
3159                 if (!cred->private_key_passwd)
3160                         return NULL;
3161                 return alloc_strdup("*");
3162         }
3163
3164         if (os_strcmp(var, "imsi") == 0)
3165                 return alloc_strdup(cred->imsi);
3166
3167         if (os_strcmp(var, "milenage") == 0) {
3168                 if (!(cred->milenage))
3169                         return NULL;
3170                 return alloc_strdup("*");
3171         }
3172
3173         if (os_strcmp(var, "domain_suffix_match") == 0)
3174                 return alloc_strdup(cred->domain_suffix_match);
3175
3176         if (os_strcmp(var, "domain") == 0) {
3177                 unsigned int i;
3178                 char *buf, *end, *pos;
3179                 int ret;
3180
3181                 if (!cred->num_domain)
3182                         return NULL;
3183
3184                 buf = os_malloc(4000);
3185                 if (buf == NULL)
3186                         return NULL;
3187                 pos = buf;
3188                 end = pos + 4000;
3189
3190                 for (i = 0; i < cred->num_domain; i++) {
3191                         ret = os_snprintf(pos, end - pos, "%s%s",
3192                                           i > 0 ? "\n" : "", cred->domain[i]);
3193                         if (os_snprintf_error(end - pos, ret))
3194                                 return buf;
3195                         pos += ret;
3196                 }
3197
3198                 return buf;
3199         }
3200
3201         if (os_strcmp(var, "phase1") == 0)
3202                 return alloc_strdup(cred->phase1);
3203
3204         if (os_strcmp(var, "phase2") == 0)
3205                 return alloc_strdup(cred->phase2);
3206
3207         if (os_strcmp(var, "roaming_consortium") == 0) {
3208                 size_t buflen;
3209                 char *buf;
3210
3211                 if (!cred->roaming_consortium_len)
3212                         return NULL;
3213                 buflen = cred->roaming_consortium_len * 2 + 1;
3214                 buf = os_malloc(buflen);
3215                 if (buf == NULL)
3216                         return NULL;
3217                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3218                                  cred->roaming_consortium_len);
3219                 return buf;
3220         }
3221
3222         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3223                 size_t buflen;
3224                 char *buf;
3225
3226                 if (!cred->required_roaming_consortium_len)
3227                         return NULL;
3228                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3229                 buf = os_malloc(buflen);
3230                 if (buf == NULL)
3231                         return NULL;
3232                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3233                                  cred->required_roaming_consortium_len);
3234                 return buf;
3235         }
3236
3237         if (os_strcmp(var, "excluded_ssid") == 0) {
3238                 unsigned int i;
3239                 char *buf, *end, *pos;
3240
3241                 if (!cred->num_excluded_ssid)
3242                         return NULL;
3243
3244                 buf = os_malloc(4000);
3245                 if (buf == NULL)
3246                         return NULL;
3247                 pos = buf;
3248                 end = pos + 4000;
3249
3250                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3251                         struct excluded_ssid *e;
3252                         int ret;
3253
3254                         e = &cred->excluded_ssid[i];
3255                         ret = os_snprintf(pos, end - pos, "%s%s",
3256                                           i > 0 ? "\n" : "",
3257                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3258                         if (os_snprintf_error(end - pos, ret))
3259                                 return buf;
3260                         pos += ret;
3261                 }
3262
3263                 return buf;
3264         }
3265
3266         if (os_strcmp(var, "roaming_partner") == 0) {
3267                 unsigned int i;
3268                 char *buf, *end, *pos;
3269
3270                 if (!cred->num_roaming_partner)
3271                         return NULL;
3272
3273                 buf = os_malloc(4000);
3274                 if (buf == NULL)
3275                         return NULL;
3276                 pos = buf;
3277                 end = pos + 4000;
3278
3279                 for (i = 0; i < cred->num_roaming_partner; i++) {
3280                         struct roaming_partner *p;
3281                         int ret;
3282
3283                         p = &cred->roaming_partner[i];
3284                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3285                                           i > 0 ? "\n" : "",
3286                                           p->fqdn, p->exact_match, p->priority,
3287                                           p->country);
3288                         if (os_snprintf_error(end - pos, ret))
3289                                 return buf;
3290                         pos += ret;
3291                 }
3292
3293                 return buf;
3294         }
3295
3296         if (os_strcmp(var, "provisioning_sp") == 0)
3297                 return alloc_strdup(cred->provisioning_sp);
3298
3299         return NULL;
3300 }
3301
3302
3303 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3304 {
3305         struct wpa_cred *cred;
3306
3307         cred = config->cred;
3308         while (cred) {
3309                 if (id == cred->id)
3310                         break;
3311                 cred = cred->next;
3312         }
3313
3314         return cred;
3315 }
3316
3317
3318 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3319 {
3320         int id;
3321         struct wpa_cred *cred, *last = NULL;
3322
3323         id = -1;
3324         cred = config->cred;
3325         while (cred) {
3326                 if (cred->id > id)
3327                         id = cred->id;
3328                 last = cred;
3329                 cred = cred->next;
3330         }
3331         id++;
3332
3333         cred = os_zalloc(sizeof(*cred));
3334         if (cred == NULL)
3335                 return NULL;
3336         cred->id = id;
3337         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3338         if (last)
3339                 last->next = cred;
3340         else
3341                 config->cred = cred;
3342
3343         return cred;
3344 }
3345
3346
3347 int wpa_config_remove_cred(struct wpa_config *config, int id)
3348 {
3349         struct wpa_cred *cred, *prev = NULL;
3350
3351         cred = config->cred;
3352         while (cred) {
3353                 if (id == cred->id)
3354                         break;
3355                 prev = cred;
3356                 cred = cred->next;
3357         }
3358
3359         if (cred == NULL)
3360                 return -1;
3361
3362         if (prev)
3363                 prev->next = cred->next;
3364         else
3365                 config->cred = cred->next;
3366
3367         wpa_config_free_cred(cred);
3368         return 0;
3369 }
3370
3371
3372 #ifndef CONFIG_NO_CONFIG_BLOBS
3373 /**
3374  * wpa_config_get_blob - Get a named configuration blob
3375  * @config: Configuration data from wpa_config_read()
3376  * @name: Name of the blob
3377  * Returns: Pointer to blob data or %NULL if not found
3378  */
3379 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3380                                                    const char *name)
3381 {
3382         struct wpa_config_blob *blob = config->blobs;
3383
3384         while (blob) {
3385                 if (os_strcmp(blob->name, name) == 0)
3386                         return blob;
3387                 blob = blob->next;
3388         }
3389         return NULL;
3390 }
3391
3392
3393 /**
3394  * wpa_config_set_blob - Set or add a named configuration blob
3395  * @config: Configuration data from wpa_config_read()
3396  * @blob: New value for the blob
3397  *
3398  * Adds a new configuration blob or replaces the current value of an existing
3399  * blob.
3400  */
3401 void wpa_config_set_blob(struct wpa_config *config,
3402                          struct wpa_config_blob *blob)
3403 {
3404         wpa_config_remove_blob(config, blob->name);
3405         blob->next = config->blobs;
3406         config->blobs = blob;
3407 }
3408
3409
3410 /**
3411  * wpa_config_free_blob - Free blob data
3412  * @blob: Pointer to blob to be freed
3413  */
3414 void wpa_config_free_blob(struct wpa_config_blob *blob)
3415 {
3416         if (blob) {
3417                 os_free(blob->name);
3418                 bin_clear_free(blob->data, blob->len);
3419                 os_free(blob);
3420         }
3421 }
3422
3423
3424 /**
3425  * wpa_config_remove_blob - Remove a named configuration blob
3426  * @config: Configuration data from wpa_config_read()
3427  * @name: Name of the blob to remove
3428  * Returns: 0 if blob was removed or -1 if blob was not found
3429  */
3430 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3431 {
3432         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3433
3434         while (pos) {
3435                 if (os_strcmp(pos->name, name) == 0) {
3436                         if (prev)
3437                                 prev->next = pos->next;
3438                         else
3439                                 config->blobs = pos->next;
3440                         wpa_config_free_blob(pos);
3441                         return 0;
3442                 }
3443                 prev = pos;
3444                 pos = pos->next;
3445         }
3446
3447         return -1;
3448 }
3449 #endif /* CONFIG_NO_CONFIG_BLOBS */
3450
3451
3452 /**
3453  * wpa_config_alloc_empty - Allocate an empty configuration
3454  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3455  * socket
3456  * @driver_param: Driver parameters
3457  * Returns: Pointer to allocated configuration data or %NULL on failure
3458  */
3459 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3460                                            const char *driver_param)
3461 {
3462         struct wpa_config *config;
3463         const int aCWmin = 4, aCWmax = 10;
3464         const struct hostapd_wmm_ac_params ac_bk =
3465                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3466         const struct hostapd_wmm_ac_params ac_be =
3467                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3468         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3469                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3470         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3471                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3472
3473         config = os_zalloc(sizeof(*config));
3474         if (config == NULL)
3475                 return NULL;
3476         config->eapol_version = DEFAULT_EAPOL_VERSION;
3477         config->ap_scan = DEFAULT_AP_SCAN;
3478         config->user_mpm = DEFAULT_USER_MPM;
3479         config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
3480         config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
3481         config->fast_reauth = DEFAULT_FAST_REAUTH;
3482         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3483         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3484         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3485         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3486         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3487         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3488         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3489         config->max_num_sta = DEFAULT_MAX_NUM_STA;
3490         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3491         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3492         config->wmm_ac_params[0] = ac_be;
3493         config->wmm_ac_params[1] = ac_bk;
3494         config->wmm_ac_params[2] = ac_vi;
3495         config->wmm_ac_params[3] = ac_vo;
3496         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3497         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3498         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3499         config->cert_in_cb = DEFAULT_CERT_IN_CB;
3500
3501         if (ctrl_interface)
3502                 config->ctrl_interface = os_strdup(ctrl_interface);
3503         if (driver_param)
3504                 config->driver_param = os_strdup(driver_param);
3505
3506         return config;
3507 }
3508
3509
3510 #ifndef CONFIG_NO_STDOUT_DEBUG
3511 /**
3512  * wpa_config_debug_dump_networks - Debug dump of configured networks
3513  * @config: Configuration data from wpa_config_read()
3514  */
3515 void wpa_config_debug_dump_networks(struct wpa_config *config)
3516 {
3517         int prio;
3518         struct wpa_ssid *ssid;
3519
3520         for (prio = 0; prio < config->num_prio; prio++) {
3521                 ssid = config->pssid[prio];
3522                 wpa_printf(MSG_DEBUG, "Priority group %d",
3523                            ssid->priority);
3524                 while (ssid) {
3525                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3526                                    ssid->id,
3527                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3528                         ssid = ssid->pnext;
3529                 }
3530         }
3531 }
3532 #endif /* CONFIG_NO_STDOUT_DEBUG */
3533
3534
3535 struct global_parse_data {
3536         char *name;
3537         int (*parser)(const struct global_parse_data *data,
3538                       struct wpa_config *config, int line, const char *value);
3539         void *param1, *param2, *param3;
3540         unsigned int changed_flag;
3541 };
3542
3543
3544 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3545                                        struct wpa_config *config, int line,
3546                                        const char *pos)
3547 {
3548         int val, *dst;
3549         char *end;
3550
3551         dst = (int *) (((u8 *) config) + (long) data->param1);
3552         val = strtol(pos, &end, 0);
3553         if (*end) {
3554                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3555                            line, pos);
3556                 return -1;
3557         }
3558         *dst = val;
3559
3560         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3561
3562         if (data->param2 && *dst < (long) data->param2) {
3563                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3564                            "min_value=%ld)", line, data->name, *dst,
3565                            (long) data->param2);
3566                 *dst = (long) data->param2;
3567                 return -1;
3568         }
3569
3570         if (data->param3 && *dst > (long) data->param3) {
3571                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3572                            "max_value=%ld)", line, data->name, *dst,
3573                            (long) data->param3);
3574                 *dst = (long) data->param3;
3575                 return -1;
3576         }
3577
3578         return 0;
3579 }
3580
3581
3582 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3583                                        struct wpa_config *config, int line,
3584                                        const char *pos)
3585 {
3586         size_t len;
3587         char **dst, *tmp;
3588
3589         len = os_strlen(pos);
3590         if (data->param2 && len < (size_t) data->param2) {
3591                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3592                            "min_len=%ld)", line, data->name,
3593                            (unsigned long) len, (long) data->param2);
3594                 return -1;
3595         }
3596
3597         if (data->param3 && len > (size_t) data->param3) {
3598                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3599                            "max_len=%ld)", line, data->name,
3600                            (unsigned long) len, (long) data->param3);
3601                 return -1;
3602         }
3603
3604         tmp = os_strdup(pos);
3605         if (tmp == NULL)
3606                 return -1;
3607
3608         dst = (char **) (((u8 *) config) + (long) data->param1);
3609         os_free(*dst);
3610         *dst = tmp;
3611         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3612
3613         return 0;
3614 }
3615
3616
3617 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3618                                      struct wpa_config *config, int line,
3619                                      const char *pos)
3620 {
3621         size_t len;
3622         char *tmp;
3623         int res;
3624
3625         tmp = wpa_config_parse_string(pos, &len);
3626         if (tmp == NULL) {
3627                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3628                            line, data->name);
3629                 return -1;
3630         }
3631
3632         res = wpa_global_config_parse_str(data, config, line, tmp);
3633         os_free(tmp);
3634         return res;
3635 }
3636
3637
3638 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3639                                        struct wpa_config *config, int line,
3640                                        const char *pos)
3641 {
3642         size_t len;
3643         struct wpabuf **dst, *tmp;
3644
3645         len = os_strlen(pos);
3646         if (len & 0x01)
3647                 return -1;
3648
3649         tmp = wpabuf_alloc(len / 2);
3650         if (tmp == NULL)
3651                 return -1;
3652
3653         if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3654                 wpabuf_free(tmp);
3655                 return -1;
3656         }
3657
3658         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3659         wpabuf_free(*dst);
3660         *dst = tmp;
3661         wpa_printf(MSG_DEBUG, "%s", data->name);
3662
3663         return 0;
3664 }
3665
3666
3667 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3668                                         struct wpa_config *config, int line,
3669                                         const char *value)
3670 {
3671         int *freqs;
3672
3673         freqs = wpa_config_parse_int_array(value);
3674         if (freqs == NULL)
3675                 return -1;
3676         if (freqs[0] == 0) {
3677                 os_free(freqs);
3678                 freqs = NULL;
3679         }
3680         os_free(config->freq_list);
3681         config->freq_list = freqs;
3682         return 0;
3683 }
3684
3685
3686 #ifdef CONFIG_P2P
3687 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3688                                         struct wpa_config *config, int line,
3689                                         const char *pos)
3690 {
3691         u32 *dst;
3692         struct hostapd_ip_addr addr;
3693
3694         if (hostapd_parse_ip_addr(pos, &addr) < 0)
3695                 return -1;
3696         if (addr.af != AF_INET)
3697                 return -1;
3698
3699         dst = (u32 *) (((u8 *) config) + (long) data->param1);
3700         os_memcpy(dst, &addr.u.v4.s_addr, 4);
3701         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3702                    WPA_GET_BE32((u8 *) dst));
3703
3704         return 0;
3705 }
3706 #endif /* CONFIG_P2P */
3707
3708
3709 static int wpa_config_process_country(const struct global_parse_data *data,
3710                                       struct wpa_config *config, int line,
3711                                       const char *pos)
3712 {
3713         if (!pos[0] || !pos[1]) {
3714                 wpa_printf(MSG_DEBUG, "Invalid country set");
3715                 return -1;
3716         }
3717         config->country[0] = pos[0];
3718         config->country[1] = pos[1];
3719         wpa_printf(MSG_DEBUG, "country='%c%c'",
3720                    config->country[0], config->country[1]);
3721         return 0;
3722 }
3723
3724
3725 static int wpa_config_process_load_dynamic_eap(
3726         const struct global_parse_data *data, struct wpa_config *config,
3727         int line, const char *so)
3728 {
3729         int ret;
3730         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3731         ret = eap_peer_method_load(so);
3732         if (ret == -2) {
3733                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3734                            "reloading.");
3735         } else if (ret) {
3736                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3737                            "method '%s'.", line, so);
3738                 return -1;
3739         }
3740
3741         return 0;
3742 }
3743
3744
3745 #ifdef CONFIG_WPS
3746
3747 static int wpa_config_process_uuid(const struct global_parse_data *data,
3748                                    struct wpa_config *config, int line,
3749                                    const char *pos)
3750 {
3751         char buf[40];
3752         if (uuid_str2bin(pos, config->uuid)) {
3753                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3754                 return -1;
3755         }
3756         uuid_bin2str(config->uuid, buf, sizeof(buf));
3757         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3758         return 0;
3759 }
3760
3761
3762 static int wpa_config_process_device_type(
3763         const struct global_parse_data *data,
3764         struct wpa_config *config, int line, const char *pos)
3765 {
3766         return wps_dev_type_str2bin(pos, config->device_type);
3767 }
3768
3769
3770 static int wpa_config_process_os_version(const struct global_parse_data *data,
3771                                          struct wpa_config *config, int line,
3772                                          const char *pos)
3773 {
3774         if (hexstr2bin(pos, config->os_version, 4)) {
3775                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3776                 return -1;
3777         }
3778         wpa_printf(MSG_DEBUG, "os_version=%08x",
3779                    WPA_GET_BE32(config->os_version));
3780         return 0;
3781 }
3782
3783
3784 static int wpa_config_process_wps_vendor_ext_m1(
3785         const struct global_parse_data *data,
3786         struct wpa_config *config, int line, const char *pos)
3787 {
3788         struct wpabuf *tmp;
3789         int len = os_strlen(pos) / 2;
3790         u8 *p;
3791
3792         if (!len) {
3793                 wpa_printf(MSG_ERROR, "Line %d: "
3794                            "invalid wps_vendor_ext_m1", line);
3795                 return -1;
3796         }
3797
3798         tmp = wpabuf_alloc(len);
3799         if (tmp) {
3800                 p = wpabuf_put(tmp, len);
3801
3802                 if (hexstr2bin(pos, p, len)) {
3803                         wpa_printf(MSG_ERROR, "Line %d: "
3804                                    "invalid wps_vendor_ext_m1", line);
3805                         wpabuf_free(tmp);
3806                         return -1;
3807                 }
3808
3809                 wpabuf_free(config->wps_vendor_ext_m1);
3810                 config->wps_vendor_ext_m1 = tmp;
3811         } else {
3812                 wpa_printf(MSG_ERROR, "Can not allocate "
3813                            "memory for wps_vendor_ext_m1");
3814                 return -1;
3815         }
3816
3817         return 0;
3818 }
3819
3820 #endif /* CONFIG_WPS */
3821
3822 #ifdef CONFIG_P2P
3823 static int wpa_config_process_sec_device_type(
3824         const struct global_parse_data *data,
3825         struct wpa_config *config, int line, const char *pos)
3826 {
3827         int idx;
3828
3829         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3830                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3831                            "items", line);
3832                 return -1;
3833         }
3834
3835         idx = config->num_sec_device_types;
3836
3837         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3838                 return -1;
3839
3840         config->num_sec_device_types++;
3841         return 0;
3842 }
3843
3844
3845 static int wpa_config_process_p2p_pref_chan(
3846         const struct global_parse_data *data,
3847         struct wpa_config *config, int line, const char *pos)
3848 {
3849         struct p2p_channel *pref = NULL, *n;
3850         unsigned int num = 0;
3851         const char *pos2;
3852         u8 op_class, chan;
3853
3854         /* format: class:chan,class:chan,... */
3855
3856         while (*pos) {
3857                 op_class = atoi(pos);
3858                 pos2 = os_strchr(pos, ':');
3859                 if (pos2 == NULL)
3860                         goto fail;
3861                 pos2++;
3862                 chan = atoi(pos2);
3863
3864                 n = os_realloc_array(pref, num + 1,
3865                                      sizeof(struct p2p_channel));
3866                 if (n == NULL)
3867                         goto fail;
3868                 pref = n;
3869                 pref[num].op_class = op_class;
3870                 pref[num].chan = chan;
3871                 num++;
3872
3873                 pos = os_strchr(pos2, ',');
3874                 if (pos == NULL)
3875                         break;
3876                 pos++;
3877         }
3878
3879         os_free(config->p2p_pref_chan);
3880         config->p2p_pref_chan = pref;
3881         config->num_p2p_pref_chan = num;
3882         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3883                     (u8 *) config->p2p_pref_chan,
3884                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3885
3886         return 0;
3887
3888 fail:
3889         os_free(pref);
3890         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3891         return -1;
3892 }
3893
3894
3895 static int wpa_config_process_p2p_no_go_freq(
3896         const struct global_parse_data *data,
3897         struct wpa_config *config, int line, const char *pos)
3898 {
3899         int ret;
3900
3901         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3902         if (ret < 0) {
3903                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3904                 return -1;
3905         }
3906
3907         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3908                    config->p2p_no_go_freq.num);
3909
3910         return 0;
3911 }
3912
3913 #endif /* CONFIG_P2P */
3914
3915
3916 static int wpa_config_process_hessid(
3917         const struct global_parse_data *data,
3918         struct wpa_config *config, int line, const char *pos)
3919 {
3920         if (hwaddr_aton2(pos, config->hessid) < 0) {
3921                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3922                            line, pos);
3923                 return -1;
3924         }
3925
3926         return 0;
3927 }
3928
3929
3930 static int wpa_config_process_sae_groups(
3931         const struct global_parse_data *data,
3932         struct wpa_config *config, int line, const char *pos)
3933 {
3934         int *groups = wpa_config_parse_int_array(pos);
3935         if (groups == NULL) {
3936                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3937                            line, pos);
3938                 return -1;
3939         }
3940
3941         os_free(config->sae_groups);
3942         config->sae_groups = groups;
3943
3944         return 0;
3945 }
3946
3947
3948 static int wpa_config_process_ap_vendor_elements(
3949         const struct global_parse_data *data,
3950         struct wpa_config *config, int line, const char *pos)
3951 {
3952         struct wpabuf *tmp;
3953         int len = os_strlen(pos) / 2;
3954         u8 *p;
3955
3956         if (!len) {
3957                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3958                            line);
3959                 return -1;
3960         }
3961
3962         tmp = wpabuf_alloc(len);
3963         if (tmp) {
3964                 p = wpabuf_put(tmp, len);
3965
3966                 if (hexstr2bin(pos, p, len)) {
3967                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3968                                    "ap_vendor_elements", line);
3969                         wpabuf_free(tmp);
3970                         return -1;
3971                 }
3972
3973                 wpabuf_free(config->ap_vendor_elements);
3974                 config->ap_vendor_elements = tmp;
3975         } else {
3976                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
3977                            "ap_vendor_elements");
3978                 return -1;
3979         }
3980
3981         return 0;
3982 }
3983
3984
3985 #ifdef CONFIG_CTRL_IFACE
3986 static int wpa_config_process_no_ctrl_interface(
3987         const struct global_parse_data *data,
3988         struct wpa_config *config, int line, const char *pos)
3989 {
3990         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
3991         os_free(config->ctrl_interface);
3992         config->ctrl_interface = NULL;
3993         return 0;
3994 }
3995 #endif /* CONFIG_CTRL_IFACE */
3996
3997
3998 #ifdef OFFSET
3999 #undef OFFSET
4000 #endif /* OFFSET */
4001 /* OFFSET: Get offset of a variable within the wpa_config structure */
4002 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4003
4004 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
4005 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
4006 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
4007 #define INT(f) _INT(f), NULL, NULL
4008 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4009 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
4010 #define STR(f) _STR(f), NULL, NULL
4011 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4012 #define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
4013 #define IPV4(f) #f, wpa_global_config_parse_ipv4, OFFSET(f), NULL, NULL
4014
4015 static const struct global_parse_data global_fields[] = {
4016 #ifdef CONFIG_CTRL_IFACE
4017         { STR(ctrl_interface), 0 },
4018         { FUNC_NO_VAR(no_ctrl_interface), 0 },
4019         { STR(ctrl_interface_group), 0 } /* deprecated */,
4020 #endif /* CONFIG_CTRL_IFACE */
4021 #ifdef CONFIG_MACSEC
4022         { INT_RANGE(eapol_version, 1, 3), 0 },
4023 #else /* CONFIG_MACSEC */
4024         { INT_RANGE(eapol_version, 1, 2), 0 },
4025 #endif /* CONFIG_MACSEC */
4026         { INT(ap_scan), 0 },
4027         { FUNC(bgscan), 0 },
4028 #ifdef CONFIG_MESH
4029         { INT(user_mpm), 0 },
4030         { INT_RANGE(max_peer_links, 0, 255), 0 },
4031         { INT(mesh_max_inactivity), 0 },
4032 #endif /* CONFIG_MESH */
4033         { INT(disable_scan_offload), 0 },
4034         { INT(fast_reauth), 0 },
4035         { STR(opensc_engine_path), 0 },
4036         { STR(pkcs11_engine_path), 0 },
4037         { STR(pkcs11_module_path), 0 },
4038         { STR(openssl_ciphers), 0 },
4039         { STR(pcsc_reader), 0 },
4040         { STR(pcsc_pin), 0 },
4041         { INT(external_sim), 0 },
4042         { STR(driver_param), 0 },
4043         { INT(dot11RSNAConfigPMKLifetime), 0 },
4044         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4045         { INT(dot11RSNAConfigSATimeout), 0 },
4046 #ifndef CONFIG_NO_CONFIG_WRITE
4047         { INT(update_config), 0 },
4048 #endif /* CONFIG_NO_CONFIG_WRITE */
4049         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4050 #ifdef CONFIG_WPS
4051         { FUNC(uuid), CFG_CHANGED_UUID },
4052         { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
4053         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4054         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4055         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4056         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4057         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4058         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4059         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4060         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4061         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4062 #endif /* CONFIG_WPS */
4063 #ifdef CONFIG_P2P
4064         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4065         { INT(p2p_listen_reg_class), 0 },
4066         { INT(p2p_listen_channel), 0 },
4067         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4068         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4069         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4070         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4071         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4072         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4073         { INT(p2p_group_idle), 0 },
4074         { INT_RANGE(p2p_passphrase_len, 8, 63),
4075           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4076         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4077         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4078         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4079         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4080         { INT(p2p_go_ht40), 0 },
4081         { INT(p2p_go_vht), 0 },
4082         { INT(p2p_disabled), 0 },
4083         { INT(p2p_no_group_iface), 0 },
4084         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4085         { IPV4(ip_addr_go), 0 },
4086         { IPV4(ip_addr_mask), 0 },
4087         { IPV4(ip_addr_start), 0 },
4088         { IPV4(ip_addr_end), 0 },
4089 #endif /* CONFIG_P2P */
4090         { FUNC(country), CFG_CHANGED_COUNTRY },
4091         { INT(bss_max_count), 0 },
4092         { INT(bss_expiration_age), 0 },
4093         { INT(bss_expiration_scan_count), 0 },
4094         { INT_RANGE(filter_ssids, 0, 1), 0 },
4095         { INT_RANGE(filter_rssi, -100, 0), 0 },
4096         { INT(max_num_sta), 0 },
4097         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4098 #ifdef CONFIG_HS20
4099         { INT_RANGE(hs20, 0, 1), 0 },
4100 #endif /* CONFIG_HS20 */
4101         { INT_RANGE(interworking, 0, 1), 0 },
4102         { FUNC(hessid), 0 },
4103         { INT_RANGE(access_network_type, 0, 15), 0 },
4104         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4105         { STR(autoscan), 0 },
4106         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4107           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4108         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4109         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4110         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4111         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4112         { INT(p2p_go_max_inactivity), 0 },
4113         { INT_RANGE(auto_interworking, 0, 1), 0 },
4114         { INT(okc), 0 },
4115         { INT(pmf), 0 },
4116         { FUNC(sae_groups), 0 },
4117         { INT(dtim_period), 0 },
4118         { INT(beacon_int), 0 },
4119         { FUNC(ap_vendor_elements), 0 },
4120         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4121         { FUNC(freq_list), 0 },
4122         { INT(scan_cur_freq), 0 },
4123         { INT(sched_scan_interval), 0 },
4124         { INT(tdls_external_control), 0},
4125         { STR(osu_dir), 0 },
4126         { STR(wowlan_triggers), 0 },
4127         { INT(p2p_search_delay), 0},
4128         { INT(mac_addr), 0 },
4129         { INT(rand_addr_lifetime), 0 },
4130         { INT(preassoc_mac_addr), 0 },
4131         { INT(key_mgmt_offload), 0},
4132 };
4133
4134 #undef FUNC
4135 #undef _INT
4136 #undef INT
4137 #undef INT_RANGE
4138 #undef _STR
4139 #undef STR
4140 #undef STR_RANGE
4141 #undef BIN
4142 #undef IPV4
4143 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4144
4145
4146 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4147 {
4148         size_t i;
4149         int ret = 0;
4150
4151         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4152                 const struct global_parse_data *field = &global_fields[i];
4153                 size_t flen = os_strlen(field->name);
4154                 if (os_strncmp(pos, field->name, flen) != 0 ||
4155                     pos[flen] != '=')
4156                         continue;
4157
4158                 if (field->parser(field, config, line, pos + flen + 1)) {
4159                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4160                                    "parse '%s'.", line, pos);
4161                         ret = -1;
4162                 }
4163                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4164                         config->wps_nfc_pw_from_config = 1;
4165                 config->changed_parameters |= field->changed_flag;
4166                 break;
4167         }
4168         if (i == NUM_GLOBAL_FIELDS) {
4169 #ifdef CONFIG_AP
4170                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4171                         char *tmp = os_strchr(pos, '=');
4172                         if (tmp == NULL) {
4173                                 if (line < 0)
4174                                         return -1;
4175                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4176                                            "'%s'", line, pos);
4177                                 return -1;
4178                         }
4179                         *tmp++ = '\0';
4180                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4181                                                   tmp)) {
4182                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4183                                            "AC item", line);
4184                                 return -1;
4185                         }
4186                 }
4187 #endif /* CONFIG_AP */
4188                 if (line < 0)
4189                         return -1;
4190                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4191                            line, pos);
4192                 ret = -1;
4193         }
4194
4195         return ret;
4196 }