wpa_supplicant/config.c

   1 /*
   2  * WPA Supplicant / Configuration parser and common functions
   3  * Copyright (c) 2003-2015, 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 #ifdef CONFIG_SUITEB
 682                 else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
 683                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
 684 #endif /* CONFIG_SUITEB */
 685 #ifdef CONFIG_SUITEB192
 686                 else if (os_strcmp(start, "WPA-EAP-SUITE-B-192") == 0)
 687                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
 688 #endif /* CONFIG_SUITEB192 */
 689                 else {
 690                         wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
 691                                    line, start);
 692                         errors++;
 693                 }
 694
 695                 if (last)
 696                         break;
 697                 start = end + 1;
 698         }
 699         os_free(buf);
 700
 701         if (val == 0) {
 702                 wpa_printf(MSG_ERROR,
 703                            "Line %d: no key_mgmt values configured.", line);
 704                 errors++;
 705         }
 706
 707         wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
 708         ssid->key_mgmt = val;
 709         return errors ? -1 : 0;
 710 }
 711
 712
 713 #ifndef NO_CONFIG_WRITE
 714 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
 715                                         struct wpa_ssid *ssid)
 716 {
 717         char *buf, *pos, *end;
 718         int ret;
 719
 720         pos = buf = os_zalloc(100);
 721         if (buf == NULL)
 722                 return NULL;
 723         end = buf + 100;
 724
 725         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
 726                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
 727                                   pos == buf ? "" : " ");
 728                 if (os_snprintf_error(end - pos, ret)) {
 729                         end[-1] = '\0';
 730                         return buf;
 731                 }
 732                 pos += ret;
 733         }
 734
 735         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
 736                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
 737                                   pos == buf ? "" : " ");
 738                 if (os_snprintf_error(end - pos, ret)) {
 739                         end[-1] = '\0';
 740                         return buf;
 741                 }
 742                 pos += ret;
 743         }
 744
 745         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 746                 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
 747                                   pos == buf ? "" : " ");
 748                 if (os_snprintf_error(end - pos, ret)) {
 749                         end[-1] = '\0';
 750                         return buf;
 751                 }
 752                 pos += ret;
 753         }
 754
 755         if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
 756                 ret = os_snprintf(pos, end - pos, "%sNONE",
 757                                   pos == buf ? "" : " ");
 758                 if (os_snprintf_error(end - pos, ret)) {
 759                         end[-1] = '\0';
 760                         return buf;
 761                 }
 762                 pos += ret;
 763         }
 764
 765         if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
 766                 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
 767                                   pos == buf ? "" : " ");
 768                 if (os_snprintf_error(end - pos, ret)) {
 769                         end[-1] = '\0';
 770                         return buf;
 771                 }
 772                 pos += ret;
 773         }
 774
 775 #ifdef CONFIG_IEEE80211R
 776         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
 777                 ret = os_snprintf(pos, end - pos, "%sFT-PSK",
 778                                   pos == buf ? "" : " ");
 779                 if (os_snprintf_error(end - pos, ret)) {
 780                         end[-1] = '\0';
 781                         return buf;
 782                 }
 783                 pos += ret;
 784         }
 785
 786         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
 787                 ret = os_snprintf(pos, end - pos, "%sFT-EAP",
 788                                   pos == buf ? "" : " ");
 789                 if (os_snprintf_error(end - pos, ret)) {
 790                         end[-1] = '\0';
 791                         return buf;
 792                 }
 793                 pos += ret;
 794         }
 795 #endif /* CONFIG_IEEE80211R */
 796
 797 #ifdef CONFIG_IEEE80211W
 798         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
 799                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
 800                                   pos == buf ? "" : " ");
 801                 if (os_snprintf_error(end - pos, ret)) {
 802                         end[-1] = '\0';
 803                         return buf;
 804                 }
 805                 pos += ret;
 806         }
 807
 808         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
 809                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
 810                                   pos == buf ? "" : " ");
 811                 if (os_snprintf_error(end - pos, ret)) {
 812                         end[-1] = '\0';
 813                         return buf;
 814                 }
 815                 pos += ret;
 816         }
 817 #endif /* CONFIG_IEEE80211W */
 818
 819 #ifdef CONFIG_WPS
 820         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 821                 ret = os_snprintf(pos, end - pos, "%sWPS",
 822                                   pos == buf ? "" : " ");
 823                 if (os_snprintf_error(end - pos, ret)) {
 824                         end[-1] = '\0';
 825                         return buf;
 826                 }
 827                 pos += ret;
 828         }
 829 #endif /* CONFIG_WPS */
 830
 831 #ifdef CONFIG_SAE
 832         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 833                 ret = os_snprintf(pos, end - pos, "%sSAE",
 834                                   pos == buf ? "" : " ");
 835                 if (os_snprintf_error(end - pos, ret)) {
 836                         end[-1] = '\0';
 837                         return buf;
 838                 }
 839                 pos += ret;
 840         }
 841
 842         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
 843                 ret = os_snprintf(pos, end - pos, "%sFT-SAE",
 844                                   pos == buf ? "" : " ");
 845                 if (os_snprintf_error(end - pos, ret)) {
 846                         end[-1] = '\0';
 847                         return buf;
 848                 }
 849                 pos += ret;
 850         }
 851 #endif /* CONFIG_SAE */
 852
 853 #ifdef CONFIG_HS20
 854         if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
 855                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 856                                   pos == buf ? "" : " ");
 857                 if (os_snprintf_error(end - pos, ret)) {
 858                         end[-1] = '\0';
 859                         return buf;
 860                 }
 861                 pos += ret;
 862         }
 863 #endif /* CONFIG_HS20 */
 864
 865 #ifdef CONFIG_SUITEB
 866         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
 867                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
 868                                   pos == buf ? "" : " ");
 869                 if (os_snprintf_error(end - pos, ret)) {
 870                         end[-1] = '\0';
 871                         return buf;
 872                 }
 873                 pos += ret;
 874         }
 875 #endif /* CONFIG_SUITEB */
 876
 877 #ifdef CONFIG_SUITEB192
 878         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
 879                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B-192",
 880                                   pos == buf ? "" : " ");
 881                 if (os_snprintf_error(end - pos, ret)) {
 882                         end[-1] = '\0';
 883                         return buf;
 884                 }
 885                 pos += ret;
 886         }
 887 #endif /* CONFIG_SUITEB192 */
 888
 889         if (pos == buf) {
 890                 os_free(buf);
 891                 buf = NULL;
 892         }
 893
 894         return buf;
 895 }
 896 #endif /* NO_CONFIG_WRITE */
 897
 898
 899 static int wpa_config_parse_cipher(int line, const char *value)
 900 {
 901         int val = wpa_parse_cipher(value);
 902         if (val < 0) {
 903                 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
 904                            line, value);
 905                 return -1;
 906         }
 907         if (val == 0) {
 908                 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
 909                            line);
 910                 return -1;
 911         }
 912         return val;
 913 }
 914
 915
 916 #ifndef NO_CONFIG_WRITE
 917 static char * wpa_config_write_cipher(int cipher)
 918 {
 919         char *buf = os_zalloc(50);
 920         if (buf == NULL)
 921                 return NULL;
 922
 923         if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
 924                 os_free(buf);
 925                 return NULL;
 926         }
 927
 928         return buf;
 929 }
 930 #endif /* NO_CONFIG_WRITE */
 931
 932
 933 static int wpa_config_parse_pairwise(const struct parse_data *data,
 934                                      struct wpa_ssid *ssid, int line,
 935                                      const char *value)
 936 {
 937         int val;
 938         val = wpa_config_parse_cipher(line, value);
 939         if (val == -1)
 940                 return -1;
 941         if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
 942                 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
 943                            "(0x%x).", line, val);
 944                 return -1;
 945         }
 946
 947         wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
 948         ssid->pairwise_cipher = val;
 949         return 0;
 950 }
 951
 952
 953 #ifndef NO_CONFIG_WRITE
 954 static char * wpa_config_write_pairwise(const struct parse_data *data,
 955                                         struct wpa_ssid *ssid)
 956 {
 957         return wpa_config_write_cipher(ssid->pairwise_cipher);
 958 }
 959 #endif /* NO_CONFIG_WRITE */
 960
 961
 962 static int wpa_config_parse_group(const struct parse_data *data,
 963                                   struct wpa_ssid *ssid, int line,
 964                                   const char *value)
 965 {
 966         int val;
 967         val = wpa_config_parse_cipher(line, value);
 968         if (val == -1)
 969                 return -1;
 970         if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
 971                 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
 972                            "(0x%x).", line, val);
 973                 return -1;
 974         }
 975
 976         wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
 977         ssid->group_cipher = val;
 978         return 0;
 979 }
 980
 981
 982 #ifndef NO_CONFIG_WRITE
 983 static char * wpa_config_write_group(const struct parse_data *data,
 984                                      struct wpa_ssid *ssid)
 985 {
 986         return wpa_config_write_cipher(ssid->group_cipher);
 987 }
 988 #endif /* NO_CONFIG_WRITE */
 989
 990
 991 static int wpa_config_parse_auth_alg(const struct parse_data *data,
 992                                      struct wpa_ssid *ssid, int line,
 993                                      const char *value)
 994 {
 995         int val = 0, last, errors = 0;
 996         char *start, *end, *buf;
 997
 998         buf = os_strdup(value);
 999         if (buf == NULL)
1000                 return -1;
1001         start = buf;
1002
1003         while (*start != '\0') {
1004                 while (*start == ' ' || *start == '\t')
1005                         start++;
1006                 if (*start == '\0')
1007                         break;
1008                 end = start;
1009                 while (*end != ' ' && *end != '\t' && *end != '\0')
1010                         end++;
1011                 last = *end == '\0';
1012                 *end = '\0';
1013                 if (os_strcmp(start, "OPEN") == 0)
1014                         val |= WPA_AUTH_ALG_OPEN;
1015                 else if (os_strcmp(start, "SHARED") == 0)
1016                         val |= WPA_AUTH_ALG_SHARED;
1017                 else if (os_strcmp(start, "LEAP") == 0)
1018                         val |= WPA_AUTH_ALG_LEAP;
1019                 else {
1020                         wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1021                                    line, start);
1022                         errors++;
1023                 }
1024
1025                 if (last)
1026                         break;
1027                 start = end + 1;
1028         }
1029         os_free(buf);
1030
1031         if (val == 0) {
1032                 wpa_printf(MSG_ERROR,
1033                            "Line %d: no auth_alg values configured.", line);
1034                 errors++;
1035         }
1036
1037         wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1038         ssid->auth_alg = val;
1039         return errors ? -1 : 0;
1040 }
1041
1042
1043 #ifndef NO_CONFIG_WRITE
1044 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1045                                         struct wpa_ssid *ssid)
1046 {
1047         char *buf, *pos, *end;
1048         int ret;
1049
1050         pos = buf = os_zalloc(30);
1051         if (buf == NULL)
1052                 return NULL;
1053         end = buf + 30;
1054
1055         if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1056                 ret = os_snprintf(pos, end - pos, "%sOPEN",
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 (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1066                 ret = os_snprintf(pos, end - pos, "%sSHARED",
1067                                   pos == buf ? "" : " ");
1068                 if (os_snprintf_error(end - pos, ret)) {
1069                         end[-1] = '\0';
1070                         return buf;
1071                 }
1072                 pos += ret;
1073         }
1074
1075         if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1076                 ret = os_snprintf(pos, end - pos, "%sLEAP",
1077                                   pos == buf ? "" : " ");
1078                 if (os_snprintf_error(end - pos, ret)) {
1079                         end[-1] = '\0';
1080                         return buf;
1081                 }
1082                 pos += ret;
1083         }
1084
1085         if (pos == buf) {
1086                 os_free(buf);
1087                 buf = NULL;
1088         }
1089
1090         return buf;
1091 }
1092 #endif /* NO_CONFIG_WRITE */
1093
1094
1095 static int * wpa_config_parse_int_array(const char *value)
1096 {
1097         int *freqs;
1098         size_t used, len;
1099         const char *pos;
1100
1101         used = 0;
1102         len = 10;
1103         freqs = os_calloc(len + 1, sizeof(int));
1104         if (freqs == NULL)
1105                 return NULL;
1106
1107         pos = value;
1108         while (pos) {
1109                 while (*pos == ' ')
1110                         pos++;
1111                 if (used == len) {
1112                         int *n;
1113                         size_t i;
1114                         n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1115                         if (n == NULL) {
1116                                 os_free(freqs);
1117                                 return NULL;
1118                         }
1119                         for (i = len; i <= len * 2; i++)
1120                                 n[i] = 0;
1121                         freqs = n;
1122                         len *= 2;
1123                 }
1124
1125                 freqs[used] = atoi(pos);
1126                 if (freqs[used] == 0)
1127                         break;
1128                 used++;
1129                 pos = os_strchr(pos + 1, ' ');
1130         }
1131
1132         return freqs;
1133 }
1134
1135
1136 static int wpa_config_parse_scan_freq(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->scan_freq);
1150         ssid->scan_freq = freqs;
1151
1152         return 0;
1153 }
1154
1155
1156 static int wpa_config_parse_freq_list(const struct parse_data *data,
1157                                       struct wpa_ssid *ssid, int line,
1158                                       const char *value)
1159 {
1160         int *freqs;
1161
1162         freqs = wpa_config_parse_int_array(value);
1163         if (freqs == NULL)
1164                 return -1;
1165         if (freqs[0] == 0) {
1166                 os_free(freqs);
1167                 freqs = NULL;
1168         }
1169         os_free(ssid->freq_list);
1170         ssid->freq_list = freqs;
1171
1172         return 0;
1173 }
1174
1175
1176 #ifndef NO_CONFIG_WRITE
1177 static char * wpa_config_write_freqs(const struct parse_data *data,
1178                                      const int *freqs)
1179 {
1180         char *buf, *pos, *end;
1181         int i, ret;
1182         size_t count;
1183
1184         if (freqs == NULL)
1185                 return NULL;
1186
1187         count = 0;
1188         for (i = 0; freqs[i]; i++)
1189                 count++;
1190
1191         pos = buf = os_zalloc(10 * count + 1);
1192         if (buf == NULL)
1193                 return NULL;
1194         end = buf + 10 * count + 1;
1195
1196         for (i = 0; freqs[i]; i++) {
1197                 ret = os_snprintf(pos, end - pos, "%s%u",
1198                                   i == 0 ? "" : " ", freqs[i]);
1199                 if (os_snprintf_error(end - pos, ret)) {
1200                         end[-1] = '\0';
1201                         return buf;
1202                 }
1203                 pos += ret;
1204         }
1205
1206         return buf;
1207 }
1208
1209
1210 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1211                                          struct wpa_ssid *ssid)
1212 {
1213         return wpa_config_write_freqs(data, ssid->scan_freq);
1214 }
1215
1216
1217 static char * wpa_config_write_freq_list(const struct parse_data *data,
1218                                          struct wpa_ssid *ssid)
1219 {
1220         return wpa_config_write_freqs(data, ssid->freq_list);
1221 }
1222 #endif /* NO_CONFIG_WRITE */
1223
1224
1225 #ifdef IEEE8021X_EAPOL
1226 static int wpa_config_parse_eap(const struct parse_data *data,
1227                                 struct wpa_ssid *ssid, int line,
1228                                 const char *value)
1229 {
1230         int last, errors = 0;
1231         char *start, *end, *buf;
1232         struct eap_method_type *methods = NULL, *tmp;
1233         size_t num_methods = 0;
1234
1235         buf = os_strdup(value);
1236         if (buf == NULL)
1237                 return -1;
1238         start = buf;
1239
1240         while (*start != '\0') {
1241                 while (*start == ' ' || *start == '\t')
1242                         start++;
1243                 if (*start == '\0')
1244                         break;
1245                 end = start;
1246                 while (*end != ' ' && *end != '\t' && *end != '\0')
1247                         end++;
1248                 last = *end == '\0';
1249                 *end = '\0';
1250                 tmp = methods;
1251                 methods = os_realloc_array(methods, num_methods + 1,
1252                                            sizeof(*methods));
1253                 if (methods == NULL) {
1254                         os_free(tmp);
1255                         os_free(buf);
1256                         return -1;
1257                 }
1258                 methods[num_methods].method = eap_peer_get_type(
1259                         start, &methods[num_methods].vendor);
1260                 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1261                     methods[num_methods].method == EAP_TYPE_NONE) {
1262                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1263                                    "'%s'", line, start);
1264                         wpa_printf(MSG_ERROR, "You may need to add support for"
1265                                    " this EAP method during wpa_supplicant\n"
1266                                    "build time configuration.\n"
1267                                    "See README for more information.");
1268                         errors++;
1269                 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1270                            methods[num_methods].method == EAP_TYPE_LEAP)
1271                         ssid->leap++;
1272                 else
1273                         ssid->non_leap++;
1274                 num_methods++;
1275                 if (last)
1276                         break;
1277                 start = end + 1;
1278         }
1279         os_free(buf);
1280
1281         tmp = methods;
1282         methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1283         if (methods == NULL) {
1284                 os_free(tmp);
1285                 return -1;
1286         }
1287         methods[num_methods].vendor = EAP_VENDOR_IETF;
1288         methods[num_methods].method = EAP_TYPE_NONE;
1289         num_methods++;
1290
1291         wpa_hexdump(MSG_MSGDUMP, "eap methods",
1292                     (u8 *) methods, num_methods * sizeof(*methods));
1293         os_free(ssid->eap.eap_methods);
1294         ssid->eap.eap_methods = methods;
1295         return errors ? -1 : 0;
1296 }
1297
1298
1299 #ifndef NO_CONFIG_WRITE
1300 static char * wpa_config_write_eap(const struct parse_data *data,
1301                                    struct wpa_ssid *ssid)
1302 {
1303         int i, ret;
1304         char *buf, *pos, *end;
1305         const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1306         const char *name;
1307
1308         if (eap_methods == NULL)
1309                 return NULL;
1310
1311         pos = buf = os_zalloc(100);
1312         if (buf == NULL)
1313                 return NULL;
1314         end = buf + 100;
1315
1316         for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1317                      eap_methods[i].method != EAP_TYPE_NONE; i++) {
1318                 name = eap_get_name(eap_methods[i].vendor,
1319                                     eap_methods[i].method);
1320                 if (name) {
1321                         ret = os_snprintf(pos, end - pos, "%s%s",
1322                                           pos == buf ? "" : " ", name);
1323                         if (os_snprintf_error(end - pos, ret))
1324                                 break;
1325                         pos += ret;
1326                 }
1327         }
1328
1329         end[-1] = '\0';
1330
1331         return buf;
1332 }
1333 #endif /* NO_CONFIG_WRITE */
1334
1335
1336 static int wpa_config_parse_password(const struct parse_data *data,
1337                                      struct wpa_ssid *ssid, int line,
1338                                      const char *value)
1339 {
1340         u8 *hash;
1341
1342         if (os_strcmp(value, "NULL") == 0) {
1343                 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1344                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1345                 ssid->eap.password = NULL;
1346                 ssid->eap.password_len = 0;
1347                 return 0;
1348         }
1349
1350 #ifdef CONFIG_EXT_PASSWORD
1351         if (os_strncmp(value, "ext:", 4) == 0) {
1352                 char *name = os_strdup(value + 4);
1353                 if (name == NULL)
1354                         return -1;
1355                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1356                 ssid->eap.password = (u8 *) name;
1357                 ssid->eap.password_len = os_strlen(name);
1358                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1359                 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1360                 return 0;
1361         }
1362 #endif /* CONFIG_EXT_PASSWORD */
1363
1364         if (os_strncmp(value, "hash:", 5) != 0) {
1365                 char *tmp;
1366                 size_t res_len;
1367
1368                 tmp = wpa_config_parse_string(value, &res_len);
1369                 if (tmp == NULL) {
1370                         wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1371                                    "password.", line);
1372                         return -1;
1373                 }
1374                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1375                                       (u8 *) tmp, res_len);
1376
1377                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1378                 ssid->eap.password = (u8 *) tmp;
1379                 ssid->eap.password_len = res_len;
1380                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1381                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1382
1383                 return 0;
1384         }
1385
1386
1387         /* NtPasswordHash: hash:<32 hex digits> */
1388         if (os_strlen(value + 5) != 2 * 16) {
1389                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1390                            "(expected 32 hex digits)", line);
1391                 return -1;
1392         }
1393
1394         hash = os_malloc(16);
1395         if (hash == NULL)
1396                 return -1;
1397
1398         if (hexstr2bin(value + 5, hash, 16)) {
1399                 os_free(hash);
1400                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1401                 return -1;
1402         }
1403
1404         wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1405
1406         bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1407         ssid->eap.password = hash;
1408         ssid->eap.password_len = 16;
1409         ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1410         ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1411
1412         return 0;
1413 }
1414
1415
1416 #ifndef NO_CONFIG_WRITE
1417 static char * wpa_config_write_password(const struct parse_data *data,
1418                                         struct wpa_ssid *ssid)
1419 {
1420         char *buf;
1421
1422         if (ssid->eap.password == NULL)
1423                 return NULL;
1424
1425 #ifdef CONFIG_EXT_PASSWORD
1426         if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1427                 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1428                 if (buf == NULL)
1429                         return NULL;
1430                 os_memcpy(buf, "ext:", 4);
1431                 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1432                 return buf;
1433         }
1434 #endif /* CONFIG_EXT_PASSWORD */
1435
1436         if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1437                 return wpa_config_write_string(
1438                         ssid->eap.password, ssid->eap.password_len);
1439         }
1440
1441         buf = os_malloc(5 + 32 + 1);
1442         if (buf == NULL)
1443                 return NULL;
1444
1445         os_memcpy(buf, "hash:", 5);
1446         wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1447
1448         return buf;
1449 }
1450 #endif /* NO_CONFIG_WRITE */
1451 #endif /* IEEE8021X_EAPOL */
1452
1453
1454 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1455                                     const char *value, int idx)
1456 {
1457         char *buf, title[20];
1458         int res;
1459
1460         buf = wpa_config_parse_string(value, len);
1461         if (buf == NULL) {
1462                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1463                            line, idx, value);
1464                 return -1;
1465         }
1466         if (*len > MAX_WEP_KEY_LEN) {
1467                 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1468                            line, idx, value);
1469                 os_free(buf);
1470                 return -1;
1471         }
1472         if (*len && *len != 5 && *len != 13 && *len != 16) {
1473                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1474                            "this network block will be ignored",
1475                            line, (unsigned int) *len);
1476         }
1477         os_memcpy(key, buf, *len);
1478         str_clear_free(buf);
1479         res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1480         if (!os_snprintf_error(sizeof(title), res))
1481                 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1482         return 0;
1483 }
1484
1485
1486 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1487                                      struct wpa_ssid *ssid, int line,
1488                                      const char *value)
1489 {
1490         return wpa_config_parse_wep_key(ssid->wep_key[0],
1491                                         &ssid->wep_key_len[0], line,
1492                                         value, 0);
1493 }
1494
1495
1496 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1497                                      struct wpa_ssid *ssid, int line,
1498                                      const char *value)
1499 {
1500         return wpa_config_parse_wep_key(ssid->wep_key[1],
1501                                         &ssid->wep_key_len[1], line,
1502                                         value, 1);
1503 }
1504
1505
1506 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1507                                      struct wpa_ssid *ssid, int line,
1508                                      const char *value)
1509 {
1510         return wpa_config_parse_wep_key(ssid->wep_key[2],
1511                                         &ssid->wep_key_len[2], line,
1512                                         value, 2);
1513 }
1514
1515
1516 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1517                                      struct wpa_ssid *ssid, int line,
1518                                      const char *value)
1519 {
1520         return wpa_config_parse_wep_key(ssid->wep_key[3],
1521                                         &ssid->wep_key_len[3], line,
1522                                         value, 3);
1523 }
1524
1525
1526 #ifndef NO_CONFIG_WRITE
1527 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1528 {
1529         if (ssid->wep_key_len[idx] == 0)
1530                 return NULL;
1531         return wpa_config_write_string(ssid->wep_key[idx],
1532                                        ssid->wep_key_len[idx]);
1533 }
1534
1535
1536 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1537                                         struct wpa_ssid *ssid)
1538 {
1539         return wpa_config_write_wep_key(ssid, 0);
1540 }
1541
1542
1543 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1544                                         struct wpa_ssid *ssid)
1545 {
1546         return wpa_config_write_wep_key(ssid, 1);
1547 }
1548
1549
1550 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1551                                         struct wpa_ssid *ssid)
1552 {
1553         return wpa_config_write_wep_key(ssid, 2);
1554 }
1555
1556
1557 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1558                                         struct wpa_ssid *ssid)
1559 {
1560         return wpa_config_write_wep_key(ssid, 3);
1561 }
1562 #endif /* NO_CONFIG_WRITE */
1563
1564
1565 #ifdef CONFIG_P2P
1566
1567 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1568                                             struct wpa_ssid *ssid, int line,
1569                                             const char *value)
1570 {
1571         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1572             os_strcmp(value, "any") == 0) {
1573                 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1574                 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1575                 return 0;
1576         }
1577         if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1578                 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1579                            line, value);
1580                 return -1;
1581         }
1582         ssid->bssid_set = 1;
1583         wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1584                    MAC2STR(ssid->go_p2p_dev_addr));
1585         return 0;
1586 }
1587
1588
1589 #ifndef NO_CONFIG_WRITE
1590 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1591                                                struct wpa_ssid *ssid)
1592 {
1593         char *value;
1594         int res;
1595
1596         if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1597                 return NULL;
1598
1599         value = os_malloc(20);
1600         if (value == NULL)
1601                 return NULL;
1602         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1603         if (os_snprintf_error(20, res)) {
1604                 os_free(value);
1605                 return NULL;
1606         }
1607         value[20 - 1] = '\0';
1608         return value;
1609 }
1610 #endif /* NO_CONFIG_WRITE */
1611
1612
1613 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1614                                             struct wpa_ssid *ssid, int line,
1615                                             const char *value)
1616 {
1617         return wpa_config_parse_addr_list(data, line, value,
1618                                           &ssid->p2p_client_list,
1619                                           &ssid->num_p2p_clients,
1620                                           "p2p_client_list", 0, 0);
1621 }
1622
1623
1624 #ifndef NO_CONFIG_WRITE
1625 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1626                                                struct wpa_ssid *ssid)
1627 {
1628         return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1629                                           ssid->num_p2p_clients,
1630                                           "p2p_client_list");
1631 }
1632 #endif /* NO_CONFIG_WRITE */
1633
1634
1635 static int wpa_config_parse_psk_list(const struct parse_data *data,
1636                                      struct wpa_ssid *ssid, int line,
1637                                      const char *value)
1638 {
1639         struct psk_list_entry *p;
1640         const char *pos;
1641
1642         p = os_zalloc(sizeof(*p));
1643         if (p == NULL)
1644                 return -1;
1645
1646         pos = value;
1647         if (os_strncmp(pos, "P2P-", 4) == 0) {
1648                 p->p2p = 1;
1649                 pos += 4;
1650         }
1651
1652         if (hwaddr_aton(pos, p->addr)) {
1653                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1654                            line, pos);
1655                 os_free(p);
1656                 return -1;
1657         }
1658         pos += 17;
1659         if (*pos != '-') {
1660                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1661                            line, pos);
1662                 os_free(p);
1663                 return -1;
1664         }
1665         pos++;
1666
1667         if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1668                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1669                            line, pos);
1670                 os_free(p);
1671                 return -1;
1672         }
1673
1674         dl_list_add(&ssid->psk_list, &p->list);
1675
1676         return 0;
1677 }
1678
1679
1680 #ifndef NO_CONFIG_WRITE
1681 static char * wpa_config_write_psk_list(const struct parse_data *data,
1682                                         struct wpa_ssid *ssid)
1683 {
1684         return NULL;
1685 }
1686 #endif /* NO_CONFIG_WRITE */
1687
1688 #endif /* CONFIG_P2P */
1689
1690
1691 #ifdef CONFIG_MESH
1692
1693 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1694                                              struct wpa_ssid *ssid, int line,
1695                                              const char *value)
1696 {
1697         int *rates = wpa_config_parse_int_array(value);
1698
1699         if (rates == NULL) {
1700                 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1701                            line, value);
1702                 return -1;
1703         }
1704         if (rates[0] == 0) {
1705                 os_free(rates);
1706                 rates = NULL;
1707         }
1708
1709         os_free(ssid->mesh_basic_rates);
1710         ssid->mesh_basic_rates = rates;
1711
1712         return 0;
1713 }
1714
1715
1716 #ifndef NO_CONFIG_WRITE
1717
1718 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1719                                                 struct wpa_ssid *ssid)
1720 {
1721         return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1722 }
1723
1724 #endif /* NO_CONFIG_WRITE */
1725
1726 #endif /* CONFIG_MESH */
1727
1728
1729 /* Helper macros for network block parser */
1730
1731 #ifdef OFFSET
1732 #undef OFFSET
1733 #endif /* OFFSET */
1734 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1735 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1736
1737 /* STR: Define a string variable for an ASCII string; f = field name */
1738 #ifdef NO_CONFIG_WRITE
1739 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1740 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1741 #else /* NO_CONFIG_WRITE */
1742 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1743 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1744 #endif /* NO_CONFIG_WRITE */
1745 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1746 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1747 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1748 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1749
1750 /* STR_LEN: Define a string variable with a separate variable for storing the
1751  * data length. Unlike STR(), this can be used to store arbitrary binary data
1752  * (i.e., even nul termination character). */
1753 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1754 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1755 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1756 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1757 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1758
1759 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1760  * explicitly specified. */
1761 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1762 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1763 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1764
1765 #ifdef NO_CONFIG_WRITE
1766 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1767 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1768 #else /* NO_CONFIG_WRITE */
1769 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1770         OFFSET(f), (void *) 0
1771 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1772         OFFSET(eap.f), (void *) 0
1773 #endif /* NO_CONFIG_WRITE */
1774
1775 /* INT: Define an integer variable */
1776 #define INT(f) _INT(f), NULL, NULL, 0
1777 #define INTe(f) _INTe(f), NULL, NULL, 0
1778
1779 /* INT_RANGE: Define an integer variable with allowed value range */
1780 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1781
1782 /* FUNC: Define a configuration variable that uses a custom function for
1783  * parsing and writing the value. */
1784 #ifdef NO_CONFIG_WRITE
1785 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1786 #else /* NO_CONFIG_WRITE */
1787 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1788         NULL, NULL, NULL, NULL
1789 #endif /* NO_CONFIG_WRITE */
1790 #define FUNC(f) _FUNC(f), 0
1791 #define FUNC_KEY(f) _FUNC(f), 1
1792
1793 /*
1794  * Table of network configuration variables. This table is used to parse each
1795  * network configuration variable, e.g., each line in wpa_supplicant.conf file
1796  * that is inside a network block.
1797  *
1798  * This table is generated using the helper macros defined above and with
1799  * generous help from the C pre-processor. The field name is stored as a string
1800  * into .name and for STR and INT types, the offset of the target buffer within
1801  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1802  * offset to the field containing the length of the configuration variable.
1803  * .param3 and .param4 can be used to mark the allowed range (length for STR
1804  * and value for INT).
1805  *
1806  * For each configuration line in wpa_supplicant.conf, the parser goes through
1807  * this table and select the entry that matches with the field name. The parser
1808  * function (.parser) is then called to parse the actual value of the field.
1809  *
1810  * This kind of mechanism makes it easy to add new configuration parameters,
1811  * since only one line needs to be added into this table and into the
1812  * struct wpa_ssid definition if the new variable is either a string or
1813  * integer. More complex types will need to use their own parser and writer
1814  * functions.
1815  */
1816 static const struct parse_data ssid_fields[] = {
1817         { STR_RANGE(ssid, 0, SSID_MAX_LEN) },
1818         { INT_RANGE(scan_ssid, 0, 1) },
1819         { FUNC(bssid) },
1820         { FUNC(bssid_blacklist) },
1821         { FUNC(bssid_whitelist) },
1822         { FUNC_KEY(psk) },
1823         { INT(mem_only_psk) },
1824         { FUNC(proto) },
1825         { FUNC(key_mgmt) },
1826         { INT(bg_scan_period) },
1827         { FUNC(pairwise) },
1828         { FUNC(group) },
1829         { FUNC(auth_alg) },
1830         { FUNC(scan_freq) },
1831         { FUNC(freq_list) },
1832 #ifdef IEEE8021X_EAPOL
1833         { FUNC(eap) },
1834         { STR_LENe(identity) },
1835         { STR_LENe(anonymous_identity) },
1836         { FUNC_KEY(password) },
1837         { STRe(ca_cert) },
1838         { STRe(ca_path) },
1839         { STRe(client_cert) },
1840         { STRe(private_key) },
1841         { STR_KEYe(private_key_passwd) },
1842         { STRe(dh_file) },
1843         { STRe(subject_match) },
1844         { STRe(altsubject_match) },
1845         { STRe(domain_suffix_match) },
1846         { STRe(domain_match) },
1847         { STRe(ca_cert2) },
1848         { STRe(ca_path2) },
1849         { STRe(client_cert2) },
1850         { STRe(private_key2) },
1851         { STR_KEYe(private_key2_passwd) },
1852         { STRe(dh_file2) },
1853         { STRe(subject_match2) },
1854         { STRe(altsubject_match2) },
1855         { STRe(domain_suffix_match2) },
1856         { STRe(domain_match2) },
1857         { STRe(phase1) },
1858         { STRe(phase2) },
1859         { STRe(pcsc) },
1860         { STR_KEYe(pin) },
1861         { STRe(engine_id) },
1862         { STRe(key_id) },
1863         { STRe(cert_id) },
1864         { STRe(ca_cert_id) },
1865         { STR_KEYe(pin2) },
1866         { STRe(engine2_id) },
1867         { STRe(key2_id) },
1868         { STRe(cert2_id) },
1869         { STRe(ca_cert2_id) },
1870         { INTe(engine) },
1871         { INTe(engine2) },
1872         { INT(eapol_flags) },
1873         { INTe(sim_num) },
1874         { STRe(openssl_ciphers) },
1875         { INTe(erp) },
1876 #endif /* IEEE8021X_EAPOL */
1877         { FUNC_KEY(wep_key0) },
1878         { FUNC_KEY(wep_key1) },
1879         { FUNC_KEY(wep_key2) },
1880         { FUNC_KEY(wep_key3) },
1881         { INT(wep_tx_keyidx) },
1882         { INT(priority) },
1883 #ifdef IEEE8021X_EAPOL
1884         { INT(eap_workaround) },
1885         { STRe(pac_file) },
1886         { INTe(fragment_size) },
1887         { INTe(ocsp) },
1888 #endif /* IEEE8021X_EAPOL */
1889 #ifdef CONFIG_MESH
1890         { INT_RANGE(mode, 0, 5) },
1891         { INT_RANGE(no_auto_peer, 0, 1) },
1892 #else /* CONFIG_MESH */
1893         { INT_RANGE(mode, 0, 4) },
1894 #endif /* CONFIG_MESH */
1895         { INT_RANGE(proactive_key_caching, 0, 1) },
1896         { INT_RANGE(disabled, 0, 2) },
1897         { STR(id_str) },
1898 #ifdef CONFIG_IEEE80211W
1899         { INT_RANGE(ieee80211w, 0, 2) },
1900 #endif /* CONFIG_IEEE80211W */
1901         { INT_RANGE(peerkey, 0, 1) },
1902         { INT_RANGE(mixed_cell, 0, 1) },
1903         { INT_RANGE(frequency, 0, 65000) },
1904         { INT_RANGE(fixed_freq, 0, 1) },
1905 #ifdef CONFIG_MESH
1906         { FUNC(mesh_basic_rates) },
1907         { INT(dot11MeshMaxRetries) },
1908         { INT(dot11MeshRetryTimeout) },
1909         { INT(dot11MeshConfirmTimeout) },
1910         { INT(dot11MeshHoldingTimeout) },
1911 #endif /* CONFIG_MESH */
1912         { INT(wpa_ptk_rekey) },
1913         { STR(bgscan) },
1914         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1915 #ifdef CONFIG_P2P
1916         { FUNC(go_p2p_dev_addr) },
1917         { FUNC(p2p_client_list) },
1918         { FUNC(psk_list) },
1919 #endif /* CONFIG_P2P */
1920 #ifdef CONFIG_HT_OVERRIDES
1921         { INT_RANGE(disable_ht, 0, 1) },
1922         { INT_RANGE(disable_ht40, -1, 1) },
1923         { INT_RANGE(disable_sgi, 0, 1) },
1924         { INT_RANGE(disable_ldpc, 0, 1) },
1925         { INT_RANGE(ht40_intolerant, 0, 1) },
1926         { INT_RANGE(disable_max_amsdu, -1, 1) },
1927         { INT_RANGE(ampdu_factor, -1, 3) },
1928         { INT_RANGE(ampdu_density, -1, 7) },
1929         { STR(ht_mcs) },
1930 #endif /* CONFIG_HT_OVERRIDES */
1931 #ifdef CONFIG_VHT_OVERRIDES
1932         { INT_RANGE(disable_vht, 0, 1) },
1933         { INT(vht_capa) },
1934         { INT(vht_capa_mask) },
1935         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1936         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1937         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1938         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1939         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1940         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1941         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1942         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1943         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1944         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1945         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1946         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1947         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1948         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1949         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1950         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1951 #endif /* CONFIG_VHT_OVERRIDES */
1952         { INT(ap_max_inactivity) },
1953         { INT(dtim_period) },
1954         { INT(beacon_int) },
1955 #ifdef CONFIG_MACSEC
1956         { INT_RANGE(macsec_policy, 0, 1) },
1957 #endif /* CONFIG_MACSEC */
1958 #ifdef CONFIG_HS20
1959         { INT(update_identifier) },
1960 #endif /* CONFIG_HS20 */
1961         { INT_RANGE(mac_addr, 0, 2) },
1962 };
1963
1964 #undef OFFSET
1965 #undef _STR
1966 #undef STR
1967 #undef STR_KEY
1968 #undef _STR_LEN
1969 #undef STR_LEN
1970 #undef STR_LEN_KEY
1971 #undef _STR_RANGE
1972 #undef STR_RANGE
1973 #undef STR_RANGE_KEY
1974 #undef _INT
1975 #undef INT
1976 #undef INT_RANGE
1977 #undef _FUNC
1978 #undef FUNC
1979 #undef FUNC_KEY
1980 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
1981
1982
1983 /**
1984  * wpa_config_add_prio_network - Add a network to priority lists
1985  * @config: Configuration data from wpa_config_read()
1986  * @ssid: Pointer to the network configuration to be added to the list
1987  * Returns: 0 on success, -1 on failure
1988  *
1989  * This function is used to add a network block to the priority list of
1990  * networks. This must be called for each network when reading in the full
1991  * configuration. In addition, this can be used indirectly when updating
1992  * priorities by calling wpa_config_update_prio_list().
1993  */
1994 int wpa_config_add_prio_network(struct wpa_config *config,
1995                                 struct wpa_ssid *ssid)
1996 {
1997         int prio;
1998         struct wpa_ssid *prev, **nlist;
1999
2000         /*
2001          * Add to an existing priority list if one is available for the
2002          * configured priority level for this network.
2003          */
2004         for (prio = 0; prio < config->num_prio; prio++) {
2005                 prev = config->pssid[prio];
2006                 if (prev->priority == ssid->priority) {
2007                         while (prev->pnext)
2008                                 prev = prev->pnext;
2009                         prev->pnext = ssid;
2010                         return 0;
2011                 }
2012         }
2013
2014         /* First network for this priority - add a new priority list */
2015         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2016                                  sizeof(struct wpa_ssid *));
2017         if (nlist == NULL)
2018                 return -1;
2019
2020         for (prio = 0; prio < config->num_prio; prio++) {
2021                 if (nlist[prio]->priority < ssid->priority) {
2022                         os_memmove(&nlist[prio + 1], &nlist[prio],
2023                                    (config->num_prio - prio) *
2024                                    sizeof(struct wpa_ssid *));
2025                         break;
2026                 }
2027         }
2028
2029         nlist[prio] = ssid;
2030         config->num_prio++;
2031         config->pssid = nlist;
2032
2033         return 0;
2034 }
2035
2036
2037 /**
2038  * wpa_config_update_prio_list - Update network priority list
2039  * @config: Configuration data from wpa_config_read()
2040  * Returns: 0 on success, -1 on failure
2041  *
2042  * This function is called to update the priority list of networks in the
2043  * configuration when a network is being added or removed. This is also called
2044  * if a priority for a network is changed.
2045  */
2046 int wpa_config_update_prio_list(struct wpa_config *config)
2047 {
2048         struct wpa_ssid *ssid;
2049         int ret = 0;
2050
2051         os_free(config->pssid);
2052         config->pssid = NULL;
2053         config->num_prio = 0;
2054
2055         ssid = config->ssid;
2056         while (ssid) {
2057                 ssid->pnext = NULL;
2058                 if (wpa_config_add_prio_network(config, ssid) < 0)
2059                         ret = -1;
2060                 ssid = ssid->next;
2061         }
2062
2063         return ret;
2064 }
2065
2066
2067 #ifdef IEEE8021X_EAPOL
2068 static void eap_peer_config_free(struct eap_peer_config *eap)
2069 {
2070         os_free(eap->eap_methods);
2071         bin_clear_free(eap->identity, eap->identity_len);
2072         os_free(eap->anonymous_identity);
2073         bin_clear_free(eap->password, eap->password_len);
2074         os_free(eap->ca_cert);
2075         os_free(eap->ca_path);
2076         os_free(eap->client_cert);
2077         os_free(eap->private_key);
2078         str_clear_free(eap->private_key_passwd);
2079         os_free(eap->dh_file);
2080         os_free(eap->subject_match);
2081         os_free(eap->altsubject_match);
2082         os_free(eap->domain_suffix_match);
2083         os_free(eap->domain_match);
2084         os_free(eap->ca_cert2);
2085         os_free(eap->ca_path2);
2086         os_free(eap->client_cert2);
2087         os_free(eap->private_key2);
2088         str_clear_free(eap->private_key2_passwd);
2089         os_free(eap->dh_file2);
2090         os_free(eap->subject_match2);
2091         os_free(eap->altsubject_match2);
2092         os_free(eap->domain_suffix_match2);
2093         os_free(eap->domain_match2);
2094         os_free(eap->phase1);
2095         os_free(eap->phase2);
2096         os_free(eap->pcsc);
2097         str_clear_free(eap->pin);
2098         os_free(eap->engine_id);
2099         os_free(eap->key_id);
2100         os_free(eap->cert_id);
2101         os_free(eap->ca_cert_id);
2102         os_free(eap->key2_id);
2103         os_free(eap->cert2_id);
2104         os_free(eap->ca_cert2_id);
2105         str_clear_free(eap->pin2);
2106         os_free(eap->engine2_id);
2107         os_free(eap->otp);
2108         os_free(eap->pending_req_otp);
2109         os_free(eap->pac_file);
2110         bin_clear_free(eap->new_password, eap->new_password_len);
2111         str_clear_free(eap->external_sim_resp);
2112         os_free(eap->openssl_ciphers);
2113 }
2114 #endif /* IEEE8021X_EAPOL */
2115
2116
2117 /**
2118  * wpa_config_free_ssid - Free network/ssid configuration data
2119  * @ssid: Configuration data for the network
2120  *
2121  * This function frees all resources allocated for the network configuration
2122  * data.
2123  */
2124 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2125 {
2126         struct psk_list_entry *psk;
2127
2128         os_free(ssid->ssid);
2129         str_clear_free(ssid->passphrase);
2130         os_free(ssid->ext_psk);
2131 #ifdef IEEE8021X_EAPOL
2132         eap_peer_config_free(&ssid->eap);
2133 #endif /* IEEE8021X_EAPOL */
2134         os_free(ssid->id_str);
2135         os_free(ssid->scan_freq);
2136         os_free(ssid->freq_list);
2137         os_free(ssid->bgscan);
2138         os_free(ssid->p2p_client_list);
2139         os_free(ssid->bssid_blacklist);
2140         os_free(ssid->bssid_whitelist);
2141 #ifdef CONFIG_HT_OVERRIDES
2142         os_free(ssid->ht_mcs);
2143 #endif /* CONFIG_HT_OVERRIDES */
2144 #ifdef CONFIG_MESH
2145         os_free(ssid->mesh_basic_rates);
2146 #endif /* CONFIG_MESH */
2147         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2148                                     list))) {
2149                 dl_list_del(&psk->list);
2150                 bin_clear_free(psk, sizeof(*psk));
2151         }
2152         bin_clear_free(ssid, sizeof(*ssid));
2153 }
2154
2155
2156 void wpa_config_free_cred(struct wpa_cred *cred)
2157 {
2158         size_t i;
2159
2160         os_free(cred->realm);
2161         str_clear_free(cred->username);
2162         str_clear_free(cred->password);
2163         os_free(cred->ca_cert);
2164         os_free(cred->client_cert);
2165         os_free(cred->private_key);
2166         str_clear_free(cred->private_key_passwd);
2167         os_free(cred->imsi);
2168         str_clear_free(cred->milenage);
2169         for (i = 0; i < cred->num_domain; i++)
2170                 os_free(cred->domain[i]);
2171         os_free(cred->domain);
2172         os_free(cred->domain_suffix_match);
2173         os_free(cred->eap_method);
2174         os_free(cred->phase1);
2175         os_free(cred->phase2);
2176         os_free(cred->excluded_ssid);
2177         os_free(cred->roaming_partner);
2178         os_free(cred->provisioning_sp);
2179         for (i = 0; i < cred->num_req_conn_capab; i++)
2180                 os_free(cred->req_conn_capab_port[i]);
2181         os_free(cred->req_conn_capab_port);
2182         os_free(cred->req_conn_capab_proto);
2183         os_free(cred);
2184 }
2185
2186
2187 void wpa_config_flush_blobs(struct wpa_config *config)
2188 {
2189 #ifndef CONFIG_NO_CONFIG_BLOBS
2190         struct wpa_config_blob *blob, *prev;
2191
2192         blob = config->blobs;
2193         config->blobs = NULL;
2194         while (blob) {
2195                 prev = blob;
2196                 blob = blob->next;
2197                 wpa_config_free_blob(prev);
2198         }
2199 #endif /* CONFIG_NO_CONFIG_BLOBS */
2200 }
2201
2202
2203 /**
2204  * wpa_config_free - Free configuration data
2205  * @config: Configuration data from wpa_config_read()
2206  *
2207  * This function frees all resources allocated for the configuration data by
2208  * wpa_config_read().
2209  */
2210 void wpa_config_free(struct wpa_config *config)
2211 {
2212         struct wpa_ssid *ssid, *prev = NULL;
2213         struct wpa_cred *cred, *cprev;
2214         int i;
2215
2216         ssid = config->ssid;
2217         while (ssid) {
2218                 prev = ssid;
2219                 ssid = ssid->next;
2220                 wpa_config_free_ssid(prev);
2221         }
2222
2223         cred = config->cred;
2224         while (cred) {
2225                 cprev = cred;
2226                 cred = cred->next;
2227                 wpa_config_free_cred(cprev);
2228         }
2229
2230         wpa_config_flush_blobs(config);
2231
2232         wpabuf_free(config->wps_vendor_ext_m1);
2233         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2234                 wpabuf_free(config->wps_vendor_ext[i]);
2235         os_free(config->ctrl_interface);
2236         os_free(config->ctrl_interface_group);
2237         os_free(config->opensc_engine_path);
2238         os_free(config->pkcs11_engine_path);
2239         os_free(config->pkcs11_module_path);
2240         os_free(config->openssl_ciphers);
2241         os_free(config->pcsc_reader);
2242         str_clear_free(config->pcsc_pin);
2243         os_free(config->driver_param);
2244         os_free(config->device_name);
2245         os_free(config->manufacturer);
2246         os_free(config->model_name);
2247         os_free(config->model_number);
2248         os_free(config->serial_number);
2249         os_free(config->config_methods);
2250         os_free(config->p2p_ssid_postfix);
2251         os_free(config->pssid);
2252         os_free(config->p2p_pref_chan);
2253         os_free(config->p2p_no_go_freq.range);
2254         os_free(config->autoscan);
2255         os_free(config->freq_list);
2256         wpabuf_free(config->wps_nfc_dh_pubkey);
2257         wpabuf_free(config->wps_nfc_dh_privkey);
2258         wpabuf_free(config->wps_nfc_dev_pw);
2259         os_free(config->ext_password_backend);
2260         os_free(config->sae_groups);
2261         wpabuf_free(config->ap_vendor_elements);
2262         os_free(config->osu_dir);
2263         os_free(config->bgscan);
2264         os_free(config->wowlan_triggers);
2265         os_free(config);
2266 }
2267
2268
2269 /**
2270  * wpa_config_foreach_network - Iterate over each configured network
2271  * @config: Configuration data from wpa_config_read()
2272  * @func: Callback function to process each network
2273  * @arg: Opaque argument to pass to callback function
2274  *
2275  * Iterate over the set of configured networks calling the specified
2276  * function for each item. We guard against callbacks removing the
2277  * supplied network.
2278  */
2279 void wpa_config_foreach_network(struct wpa_config *config,
2280                                 void (*func)(void *, struct wpa_ssid *),
2281                                 void *arg)
2282 {
2283         struct wpa_ssid *ssid, *next;
2284
2285         ssid = config->ssid;
2286         while (ssid) {
2287                 next = ssid->next;
2288                 func(arg, ssid);
2289                 ssid = next;
2290         }
2291 }
2292
2293
2294 /**
2295  * wpa_config_get_network - Get configured network based on id
2296  * @config: Configuration data from wpa_config_read()
2297  * @id: Unique network id to search for
2298  * Returns: Network configuration or %NULL if not found
2299  */
2300 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2301 {
2302         struct wpa_ssid *ssid;
2303
2304         ssid = config->ssid;
2305         while (ssid) {
2306                 if (id == ssid->id)
2307                         break;
2308                 ssid = ssid->next;
2309         }
2310
2311         return ssid;
2312 }
2313
2314
2315 /**
2316  * wpa_config_add_network - Add a new network with empty configuration
2317  * @config: Configuration data from wpa_config_read()
2318  * Returns: The new network configuration or %NULL if operation failed
2319  */
2320 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2321 {
2322         int id;
2323         struct wpa_ssid *ssid, *last = NULL;
2324
2325         id = -1;
2326         ssid = config->ssid;
2327         while (ssid) {
2328                 if (ssid->id > id)
2329                         id = ssid->id;
2330                 last = ssid;
2331                 ssid = ssid->next;
2332         }
2333         id++;
2334
2335         ssid = os_zalloc(sizeof(*ssid));
2336         if (ssid == NULL)
2337                 return NULL;
2338         ssid->id = id;
2339         dl_list_init(&ssid->psk_list);
2340         if (last)
2341                 last->next = ssid;
2342         else
2343                 config->ssid = ssid;
2344
2345         wpa_config_update_prio_list(config);
2346
2347         return ssid;
2348 }
2349
2350
2351 /**
2352  * wpa_config_remove_network - Remove a configured network based on id
2353  * @config: Configuration data from wpa_config_read()
2354  * @id: Unique network id to search for
2355  * Returns: 0 on success, or -1 if the network was not found
2356  */
2357 int wpa_config_remove_network(struct wpa_config *config, int id)
2358 {
2359         struct wpa_ssid *ssid, *prev = NULL;
2360
2361         ssid = config->ssid;
2362         while (ssid) {
2363                 if (id == ssid->id)
2364                         break;
2365                 prev = ssid;
2366                 ssid = ssid->next;
2367         }
2368
2369         if (ssid == NULL)
2370                 return -1;
2371
2372         if (prev)
2373                 prev->next = ssid->next;
2374         else
2375                 config->ssid = ssid->next;
2376
2377         wpa_config_update_prio_list(config);
2378         wpa_config_free_ssid(ssid);
2379         return 0;
2380 }
2381
2382
2383 /**
2384  * wpa_config_set_network_defaults - Set network default values
2385  * @ssid: Pointer to network configuration data
2386  */
2387 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2388 {
2389         ssid->proto = DEFAULT_PROTO;
2390         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2391         ssid->group_cipher = DEFAULT_GROUP;
2392         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2393         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2394 #ifdef IEEE8021X_EAPOL
2395         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2396         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2397         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2398         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2399 #endif /* IEEE8021X_EAPOL */
2400 #ifdef CONFIG_MESH
2401         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2402         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2403         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2404         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2405 #endif /* CONFIG_MESH */
2406 #ifdef CONFIG_HT_OVERRIDES
2407         ssid->disable_ht = DEFAULT_DISABLE_HT;
2408         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2409         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2410         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2411         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2412         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2413         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2414 #endif /* CONFIG_HT_OVERRIDES */
2415 #ifdef CONFIG_VHT_OVERRIDES
2416         ssid->vht_rx_mcs_nss_1 = -1;
2417         ssid->vht_rx_mcs_nss_2 = -1;
2418         ssid->vht_rx_mcs_nss_3 = -1;
2419         ssid->vht_rx_mcs_nss_4 = -1;
2420         ssid->vht_rx_mcs_nss_5 = -1;
2421         ssid->vht_rx_mcs_nss_6 = -1;
2422         ssid->vht_rx_mcs_nss_7 = -1;
2423         ssid->vht_rx_mcs_nss_8 = -1;
2424         ssid->vht_tx_mcs_nss_1 = -1;
2425         ssid->vht_tx_mcs_nss_2 = -1;
2426         ssid->vht_tx_mcs_nss_3 = -1;
2427         ssid->vht_tx_mcs_nss_4 = -1;
2428         ssid->vht_tx_mcs_nss_5 = -1;
2429         ssid->vht_tx_mcs_nss_6 = -1;
2430         ssid->vht_tx_mcs_nss_7 = -1;
2431         ssid->vht_tx_mcs_nss_8 = -1;
2432 #endif /* CONFIG_VHT_OVERRIDES */
2433         ssid->proactive_key_caching = -1;
2434 #ifdef CONFIG_IEEE80211W
2435         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2436 #endif /* CONFIG_IEEE80211W */
2437         ssid->mac_addr = -1;
2438 }
2439
2440
2441 /**
2442  * wpa_config_set - Set a variable in network configuration
2443  * @ssid: Pointer to network configuration data
2444  * @var: Variable name, e.g., "ssid"
2445  * @value: Variable value
2446  * @line: Line number in configuration file or 0 if not used
2447  * Returns: 0 on success, -1 on failure
2448  *
2449  * This function can be used to set network configuration variables based on
2450  * both the configuration file and management interface input. The value
2451  * parameter must be in the same format as the text-based configuration file is
2452  * using. For example, strings are using double quotation marks.
2453  */
2454 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2455                    int line)
2456 {
2457         size_t i;
2458         int ret = 0;
2459
2460         if (ssid == NULL || var == NULL || value == NULL)
2461                 return -1;
2462
2463         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2464                 const struct parse_data *field = &ssid_fields[i];
2465                 if (os_strcmp(var, field->name) != 0)
2466                         continue;
2467
2468                 if (field->parser(field, ssid, line, value)) {
2469                         if (line) {
2470                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2471                                            "parse %s '%s'.", line, var, value);
2472                         }
2473                         ret = -1;
2474                 }
2475                 break;
2476         }
2477         if (i == NUM_SSID_FIELDS) {
2478                 if (line) {
2479                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2480                                    "'%s'.", line, var);
2481                 }
2482                 ret = -1;
2483         }
2484
2485         return ret;
2486 }
2487
2488
2489 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2490                           const char *value)
2491 {
2492         size_t len;
2493         char *buf;
2494         int ret;
2495
2496         len = os_strlen(value);
2497         buf = os_malloc(len + 3);
2498         if (buf == NULL)
2499                 return -1;
2500         buf[0] = '"';
2501         os_memcpy(buf + 1, value, len);
2502         buf[len + 1] = '"';
2503         buf[len + 2] = '\0';
2504         ret = wpa_config_set(ssid, var, buf, 0);
2505         os_free(buf);
2506         return ret;
2507 }
2508
2509
2510 /**
2511  * wpa_config_get_all - Get all options from network configuration
2512  * @ssid: Pointer to network configuration data
2513  * @get_keys: Determines if keys/passwords will be included in returned list
2514  *      (if they may be exported)
2515  * Returns: %NULL terminated list of all set keys and their values in the form
2516  * of [key1, val1, key2, val2, ... , NULL]
2517  *
2518  * This function can be used to get list of all configured network properties.
2519  * The caller is responsible for freeing the returned list and all its
2520  * elements.
2521  */
2522 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2523 {
2524 #ifdef NO_CONFIG_WRITE
2525         return NULL;
2526 #else /* NO_CONFIG_WRITE */
2527         const struct parse_data *field;
2528         char *key, *value;
2529         size_t i;
2530         char **props;
2531         int fields_num;
2532
2533         get_keys = get_keys && ssid->export_keys;
2534
2535         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2536         if (!props)
2537                 return NULL;
2538
2539         fields_num = 0;
2540         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2541                 field = &ssid_fields[i];
2542                 if (field->key_data && !get_keys)
2543                         continue;
2544                 value = field->writer(field, ssid);
2545                 if (value == NULL)
2546                         continue;
2547                 if (os_strlen(value) == 0) {
2548                         os_free(value);
2549                         continue;
2550                 }
2551
2552                 key = os_strdup(field->name);
2553                 if (key == NULL) {
2554                         os_free(value);
2555                         goto err;
2556                 }
2557
2558                 props[fields_num * 2] = key;
2559                 props[fields_num * 2 + 1] = value;
2560
2561                 fields_num++;
2562         }
2563
2564         return props;
2565
2566 err:
2567         value = *props;
2568         while (value)
2569                 os_free(value++);
2570         os_free(props);
2571         return NULL;
2572 #endif /* NO_CONFIG_WRITE */
2573 }
2574
2575
2576 #ifndef NO_CONFIG_WRITE
2577 /**
2578  * wpa_config_get - Get a variable in network configuration
2579  * @ssid: Pointer to network configuration data
2580  * @var: Variable name, e.g., "ssid"
2581  * Returns: Value of the variable or %NULL on failure
2582  *
2583  * This function can be used to get network configuration variables. The
2584  * returned value is a copy of the configuration variable in text format, i.e,.
2585  * the same format that the text-based configuration file and wpa_config_set()
2586  * are using for the value. The caller is responsible for freeing the returned
2587  * value.
2588  */
2589 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2590 {
2591         size_t i;
2592
2593         if (ssid == NULL || var == NULL)
2594                 return NULL;
2595
2596         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2597                 const struct parse_data *field = &ssid_fields[i];
2598                 if (os_strcmp(var, field->name) == 0)
2599                         return field->writer(field, ssid);
2600         }
2601
2602         return NULL;
2603 }
2604
2605
2606 /**
2607  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2608  * @ssid: Pointer to network configuration data
2609  * @var: Variable name, e.g., "ssid"
2610  * Returns: Value of the variable or %NULL on failure
2611  *
2612  * This function can be used to get network configuration variable like
2613  * wpa_config_get(). The only difference is that this functions does not expose
2614  * key/password material from the configuration. In case a key/password field
2615  * is requested, the returned value is an empty string or %NULL if the variable
2616  * is not set or "*" if the variable is set (regardless of its value). The
2617  * returned value is a copy of the configuration variable in text format, i.e,.
2618  * the same format that the text-based configuration file and wpa_config_set()
2619  * are using for the value. The caller is responsible for freeing the returned
2620  * value.
2621  */
2622 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2623 {
2624         size_t i;
2625
2626         if (ssid == NULL || var == NULL)
2627                 return NULL;
2628
2629         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2630                 const struct parse_data *field = &ssid_fields[i];
2631                 if (os_strcmp(var, field->name) == 0) {
2632                         char *res = field->writer(field, ssid);
2633                         if (field->key_data) {
2634                                 if (res && res[0]) {
2635                                         wpa_printf(MSG_DEBUG, "Do not allow "
2636                                                    "key_data field to be "
2637                                                    "exposed");
2638                                         str_clear_free(res);
2639                                         return os_strdup("*");
2640                                 }
2641
2642                                 os_free(res);
2643                                 return NULL;
2644                         }
2645                         return res;
2646                 }
2647         }
2648
2649         return NULL;
2650 }
2651 #endif /* NO_CONFIG_WRITE */
2652
2653
2654 /**
2655  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2656  * @ssid: Pointer to network configuration data
2657  *
2658  * This function must be called to update WPA PSK when either SSID or the
2659  * passphrase has changed for the network configuration.
2660  */
2661 void wpa_config_update_psk(struct wpa_ssid *ssid)
2662 {
2663 #ifndef CONFIG_NO_PBKDF2
2664         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2665                     ssid->psk, PMK_LEN);
2666         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2667                         ssid->psk, PMK_LEN);
2668         ssid->psk_set = 1;
2669 #endif /* CONFIG_NO_PBKDF2 */
2670 }
2671
2672
2673 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2674                                               const char *value)
2675 {
2676         u8 *proto;
2677         int **port;
2678         int *ports, *nports;
2679         const char *pos;
2680         unsigned int num_ports;
2681
2682         proto = os_realloc_array(cred->req_conn_capab_proto,
2683                                  cred->num_req_conn_capab + 1, sizeof(u8));
2684         if (proto == NULL)
2685                 return -1;
2686         cred->req_conn_capab_proto = proto;
2687
2688         port = os_realloc_array(cred->req_conn_capab_port,
2689                                 cred->num_req_conn_capab + 1, sizeof(int *));
2690         if (port == NULL)
2691                 return -1;
2692         cred->req_conn_capab_port = port;
2693
2694         proto[cred->num_req_conn_capab] = atoi(value);
2695
2696         pos = os_strchr(value, ':');
2697         if (pos == NULL) {
2698                 port[cred->num_req_conn_capab] = NULL;
2699                 cred->num_req_conn_capab++;
2700                 return 0;
2701         }
2702         pos++;
2703
2704         ports = NULL;
2705         num_ports = 0;
2706
2707         while (*pos) {
2708                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2709                 if (nports == NULL) {
2710                         os_free(ports);
2711                         return -1;
2712                 }
2713                 ports = nports;
2714                 ports[num_ports++] = atoi(pos);
2715
2716                 pos = os_strchr(pos, ',');
2717                 if (pos == NULL)
2718                         break;
2719                 pos++;
2720         }
2721
2722         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2723         if (nports == NULL) {
2724                 os_free(ports);
2725                 return -1;
2726         }
2727         ports = nports;
2728         ports[num_ports] = -1;
2729
2730         port[cred->num_req_conn_capab] = ports;
2731         cred->num_req_conn_capab++;
2732         return 0;
2733 }
2734
2735
2736 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2737                         const char *value, int line)
2738 {
2739         char *val;
2740         size_t len;
2741
2742         if (os_strcmp(var, "temporary") == 0) {
2743                 cred->temporary = atoi(value);
2744                 return 0;
2745         }
2746
2747         if (os_strcmp(var, "priority") == 0) {
2748                 cred->priority = atoi(value);
2749                 return 0;
2750         }
2751
2752         if (os_strcmp(var, "sp_priority") == 0) {
2753                 int prio = atoi(value);
2754                 if (prio < 0 || prio > 255)
2755                         return -1;
2756                 cred->sp_priority = prio;
2757                 return 0;
2758         }
2759
2760         if (os_strcmp(var, "pcsc") == 0) {
2761                 cred->pcsc = atoi(value);
2762                 return 0;
2763         }
2764
2765         if (os_strcmp(var, "eap") == 0) {
2766                 struct eap_method_type method;
2767                 method.method = eap_peer_get_type(value, &method.vendor);
2768                 if (method.vendor == EAP_VENDOR_IETF &&
2769                     method.method == EAP_TYPE_NONE) {
2770                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2771                                    "for a credential", line, value);
2772                         return -1;
2773                 }
2774                 os_free(cred->eap_method);
2775                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2776                 if (cred->eap_method == NULL)
2777                         return -1;
2778                 os_memcpy(cred->eap_method, &method, sizeof(method));
2779                 return 0;
2780         }
2781
2782         if (os_strcmp(var, "password") == 0 &&
2783             os_strncmp(value, "ext:", 4) == 0) {
2784                 str_clear_free(cred->password);
2785                 cred->password = os_strdup(value);
2786                 cred->ext_password = 1;
2787                 return 0;
2788         }
2789
2790         if (os_strcmp(var, "update_identifier") == 0) {
2791                 cred->update_identifier = atoi(value);
2792                 return 0;
2793         }
2794
2795         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2796                 cred->min_dl_bandwidth_home = atoi(value);
2797                 return 0;
2798         }
2799
2800         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2801                 cred->min_ul_bandwidth_home = atoi(value);
2802                 return 0;
2803         }
2804
2805         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2806                 cred->min_dl_bandwidth_roaming = atoi(value);
2807                 return 0;
2808         }
2809
2810         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2811                 cred->min_ul_bandwidth_roaming = atoi(value);
2812                 return 0;
2813         }
2814
2815         if (os_strcmp(var, "max_bss_load") == 0) {
2816                 cred->max_bss_load = atoi(value);
2817                 return 0;
2818         }
2819
2820         if (os_strcmp(var, "req_conn_capab") == 0)
2821                 return wpa_config_set_cred_req_conn_capab(cred, value);
2822
2823         if (os_strcmp(var, "ocsp") == 0) {
2824                 cred->ocsp = atoi(value);
2825                 return 0;
2826         }
2827
2828         if (os_strcmp(var, "sim_num") == 0) {
2829                 cred->sim_num = atoi(value);
2830                 return 0;
2831         }
2832
2833         val = wpa_config_parse_string(value, &len);
2834         if (val == NULL) {
2835                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2836                            "value '%s'.", line, var, value);
2837                 return -1;
2838         }
2839
2840         if (os_strcmp(var, "realm") == 0) {
2841                 os_free(cred->realm);
2842                 cred->realm = val;
2843                 return 0;
2844         }
2845
2846         if (os_strcmp(var, "username") == 0) {
2847                 str_clear_free(cred->username);
2848                 cred->username = val;
2849                 return 0;
2850         }
2851
2852         if (os_strcmp(var, "password") == 0) {
2853                 str_clear_free(cred->password);
2854                 cred->password = val;
2855                 cred->ext_password = 0;
2856                 return 0;
2857         }
2858
2859         if (os_strcmp(var, "ca_cert") == 0) {
2860                 os_free(cred->ca_cert);
2861                 cred->ca_cert = val;
2862                 return 0;
2863         }
2864
2865         if (os_strcmp(var, "client_cert") == 0) {
2866                 os_free(cred->client_cert);
2867                 cred->client_cert = val;
2868                 return 0;
2869         }
2870
2871         if (os_strcmp(var, "private_key") == 0) {
2872                 os_free(cred->private_key);
2873                 cred->private_key = val;
2874                 return 0;
2875         }
2876
2877         if (os_strcmp(var, "private_key_passwd") == 0) {
2878                 str_clear_free(cred->private_key_passwd);
2879                 cred->private_key_passwd = val;
2880                 return 0;
2881         }
2882
2883         if (os_strcmp(var, "imsi") == 0) {
2884                 os_free(cred->imsi);
2885                 cred->imsi = val;
2886                 return 0;
2887         }
2888
2889         if (os_strcmp(var, "milenage") == 0) {
2890                 str_clear_free(cred->milenage);
2891                 cred->milenage = val;
2892                 return 0;
2893         }
2894
2895         if (os_strcmp(var, "domain_suffix_match") == 0) {
2896                 os_free(cred->domain_suffix_match);
2897                 cred->domain_suffix_match = val;
2898                 return 0;
2899         }
2900
2901         if (os_strcmp(var, "domain") == 0) {
2902                 char **new_domain;
2903                 new_domain = os_realloc_array(cred->domain,
2904                                               cred->num_domain + 1,
2905                                               sizeof(char *));
2906                 if (new_domain == NULL) {
2907                         os_free(val);
2908                         return -1;
2909                 }
2910                 new_domain[cred->num_domain++] = val;
2911                 cred->domain = new_domain;
2912                 return 0;
2913         }
2914
2915         if (os_strcmp(var, "phase1") == 0) {
2916                 os_free(cred->phase1);
2917                 cred->phase1 = val;
2918                 return 0;
2919         }
2920
2921         if (os_strcmp(var, "phase2") == 0) {
2922                 os_free(cred->phase2);
2923                 cred->phase2 = val;
2924                 return 0;
2925         }
2926
2927         if (os_strcmp(var, "roaming_consortium") == 0) {
2928                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2929                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2930                                    "roaming_consortium length %d (3..15 "
2931                                    "expected)", line, (int) len);
2932                         os_free(val);
2933                         return -1;
2934                 }
2935                 os_memcpy(cred->roaming_consortium, val, len);
2936                 cred->roaming_consortium_len = len;
2937                 os_free(val);
2938                 return 0;
2939         }
2940
2941         if (os_strcmp(var, "required_roaming_consortium") == 0) {
2942                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2943                 {
2944                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2945                                    "required_roaming_consortium length %d "
2946                                    "(3..15 expected)", line, (int) len);
2947                         os_free(val);
2948                         return -1;
2949                 }
2950                 os_memcpy(cred->required_roaming_consortium, val, len);
2951                 cred->required_roaming_consortium_len = len;
2952                 os_free(val);
2953                 return 0;
2954         }
2955
2956         if (os_strcmp(var, "excluded_ssid") == 0) {
2957                 struct excluded_ssid *e;
2958
2959                 if (len > SSID_MAX_LEN) {
2960                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2961                                    "excluded_ssid length %d", line, (int) len);
2962                         os_free(val);
2963                         return -1;
2964                 }
2965
2966                 e = os_realloc_array(cred->excluded_ssid,
2967                                      cred->num_excluded_ssid + 1,
2968                                      sizeof(struct excluded_ssid));
2969                 if (e == NULL) {
2970                         os_free(val);
2971                         return -1;
2972                 }
2973                 cred->excluded_ssid = e;
2974
2975                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2976                 os_memcpy(e->ssid, val, len);
2977                 e->ssid_len = len;
2978
2979                 os_free(val);
2980
2981                 return 0;
2982         }
2983
2984         if (os_strcmp(var, "roaming_partner") == 0) {
2985                 struct roaming_partner *p;
2986                 char *pos;
2987
2988                 p = os_realloc_array(cred->roaming_partner,
2989                                      cred->num_roaming_partner + 1,
2990                                      sizeof(struct roaming_partner));
2991                 if (p == NULL) {
2992                         os_free(val);
2993                         return -1;
2994                 }
2995                 cred->roaming_partner = p;
2996
2997                 p = &cred->roaming_partner[cred->num_roaming_partner];
2998
2999                 pos = os_strchr(val, ',');
3000                 if (pos == NULL) {
3001                         os_free(val);
3002                         return -1;
3003                 }
3004                 *pos++ = '\0';
3005                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3006                         os_free(val);
3007                         return -1;
3008                 }
3009                 os_memcpy(p->fqdn, val, pos - val);
3010
3011                 p->exact_match = atoi(pos);
3012
3013                 pos = os_strchr(pos, ',');
3014                 if (pos == NULL) {
3015                         os_free(val);
3016                         return -1;
3017                 }
3018                 *pos++ = '\0';
3019
3020                 p->priority = atoi(pos);
3021
3022                 pos = os_strchr(pos, ',');
3023                 if (pos == NULL) {
3024                         os_free(val);
3025                         return -1;
3026                 }
3027                 *pos++ = '\0';
3028
3029                 if (os_strlen(pos) >= sizeof(p->country)) {
3030                         os_free(val);
3031                         return -1;
3032                 }
3033                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3034
3035                 cred->num_roaming_partner++;
3036                 os_free(val);
3037
3038                 return 0;
3039         }
3040
3041         if (os_strcmp(var, "provisioning_sp") == 0) {
3042                 os_free(cred->provisioning_sp);
3043                 cred->provisioning_sp = val;
3044                 return 0;
3045         }
3046
3047         if (line) {
3048                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3049                            line, var);
3050         }
3051
3052         os_free(val);
3053
3054         return -1;
3055 }
3056
3057
3058 static char * alloc_int_str(int val)
3059 {
3060         const unsigned int bufsize = 20;
3061         char *buf;
3062         int res;
3063
3064         buf = os_malloc(bufsize);
3065         if (buf == NULL)
3066                 return NULL;
3067         res = os_snprintf(buf, bufsize, "%d", val);
3068         if (os_snprintf_error(bufsize, res)) {
3069                 os_free(buf);
3070                 buf = NULL;
3071         }
3072         return buf;
3073 }
3074
3075
3076 static char * alloc_strdup(const char *str)
3077 {
3078         if (str == NULL)
3079                 return NULL;
3080         return os_strdup(str);
3081 }
3082
3083
3084 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3085 {
3086         if (os_strcmp(var, "temporary") == 0)
3087                 return alloc_int_str(cred->temporary);
3088
3089         if (os_strcmp(var, "priority") == 0)
3090                 return alloc_int_str(cred->priority);
3091
3092         if (os_strcmp(var, "sp_priority") == 0)
3093                 return alloc_int_str(cred->sp_priority);
3094
3095         if (os_strcmp(var, "pcsc") == 0)
3096                 return alloc_int_str(cred->pcsc);
3097
3098         if (os_strcmp(var, "eap") == 0) {
3099                 if (!cred->eap_method)
3100                         return NULL;
3101                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3102                                                  cred->eap_method[0].method));
3103         }
3104
3105         if (os_strcmp(var, "update_identifier") == 0)
3106                 return alloc_int_str(cred->update_identifier);
3107
3108         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3109                 return alloc_int_str(cred->min_dl_bandwidth_home);
3110
3111         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3112                 return alloc_int_str(cred->min_ul_bandwidth_home);
3113
3114         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3115                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3116
3117         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3118                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3119
3120         if (os_strcmp(var, "max_bss_load") == 0)
3121                 return alloc_int_str(cred->max_bss_load);
3122
3123         if (os_strcmp(var, "req_conn_capab") == 0) {
3124                 unsigned int i;
3125                 char *buf, *end, *pos;
3126                 int ret;
3127
3128                 if (!cred->num_req_conn_capab)
3129                         return NULL;
3130
3131                 buf = os_malloc(4000);
3132                 if (buf == NULL)
3133                         return NULL;
3134                 pos = buf;
3135                 end = pos + 4000;
3136                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3137                         int *ports;
3138
3139                         ret = os_snprintf(pos, end - pos, "%s%u",
3140                                           i > 0 ? "\n" : "",
3141                                           cred->req_conn_capab_proto[i]);
3142                         if (os_snprintf_error(end - pos, ret))
3143                                 return buf;
3144                         pos += ret;
3145
3146                         ports = cred->req_conn_capab_port[i];
3147                         if (ports) {
3148                                 int j;
3149                                 for (j = 0; ports[j] != -1; j++) {
3150                                         ret = os_snprintf(pos, end - pos,
3151                                                           "%s%d",
3152                                                           j > 0 ? "," : ":",
3153                                                           ports[j]);
3154                                         if (os_snprintf_error(end - pos, ret))
3155                                                 return buf;
3156                                         pos += ret;
3157                                 }
3158                         }
3159                 }
3160
3161                 return buf;
3162         }
3163
3164         if (os_strcmp(var, "ocsp") == 0)
3165                 return alloc_int_str(cred->ocsp);
3166
3167         if (os_strcmp(var, "realm") == 0)
3168                 return alloc_strdup(cred->realm);
3169
3170         if (os_strcmp(var, "username") == 0)
3171                 return alloc_strdup(cred->username);
3172
3173         if (os_strcmp(var, "password") == 0) {
3174                 if (!cred->password)
3175                         return NULL;
3176                 return alloc_strdup("*");
3177         }
3178
3179         if (os_strcmp(var, "ca_cert") == 0)
3180                 return alloc_strdup(cred->ca_cert);
3181
3182         if (os_strcmp(var, "client_cert") == 0)
3183                 return alloc_strdup(cred->client_cert);
3184
3185         if (os_strcmp(var, "private_key") == 0)
3186                 return alloc_strdup(cred->private_key);
3187
3188         if (os_strcmp(var, "private_key_passwd") == 0) {
3189                 if (!cred->private_key_passwd)
3190                         return NULL;
3191                 return alloc_strdup("*");
3192         }
3193
3194         if (os_strcmp(var, "imsi") == 0)
3195                 return alloc_strdup(cred->imsi);
3196
3197         if (os_strcmp(var, "milenage") == 0) {
3198                 if (!(cred->milenage))
3199                         return NULL;
3200                 return alloc_strdup("*");
3201         }
3202
3203         if (os_strcmp(var, "domain_suffix_match") == 0)
3204                 return alloc_strdup(cred->domain_suffix_match);
3205
3206         if (os_strcmp(var, "domain") == 0) {
3207                 unsigned int i;
3208                 char *buf, *end, *pos;
3209                 int ret;
3210
3211                 if (!cred->num_domain)
3212                         return NULL;
3213
3214                 buf = os_malloc(4000);
3215                 if (buf == NULL)
3216                         return NULL;
3217                 pos = buf;
3218                 end = pos + 4000;
3219
3220                 for (i = 0; i < cred->num_domain; i++) {
3221                         ret = os_snprintf(pos, end - pos, "%s%s",
3222                                           i > 0 ? "\n" : "", cred->domain[i]);
3223                         if (os_snprintf_error(end - pos, ret))
3224                                 return buf;
3225                         pos += ret;
3226                 }
3227
3228                 return buf;
3229         }
3230
3231         if (os_strcmp(var, "phase1") == 0)
3232                 return alloc_strdup(cred->phase1);
3233
3234         if (os_strcmp(var, "phase2") == 0)
3235                 return alloc_strdup(cred->phase2);
3236
3237         if (os_strcmp(var, "roaming_consortium") == 0) {
3238                 size_t buflen;
3239                 char *buf;
3240
3241                 if (!cred->roaming_consortium_len)
3242                         return NULL;
3243                 buflen = cred->roaming_consortium_len * 2 + 1;
3244                 buf = os_malloc(buflen);
3245                 if (buf == NULL)
3246                         return NULL;
3247                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3248                                  cred->roaming_consortium_len);
3249                 return buf;
3250         }
3251
3252         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3253                 size_t buflen;
3254                 char *buf;
3255
3256                 if (!cred->required_roaming_consortium_len)
3257                         return NULL;
3258                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3259                 buf = os_malloc(buflen);
3260                 if (buf == NULL)
3261                         return NULL;
3262                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3263                                  cred->required_roaming_consortium_len);
3264                 return buf;
3265         }
3266
3267         if (os_strcmp(var, "excluded_ssid") == 0) {
3268                 unsigned int i;
3269                 char *buf, *end, *pos;
3270
3271                 if (!cred->num_excluded_ssid)
3272                         return NULL;
3273
3274                 buf = os_malloc(4000);
3275                 if (buf == NULL)
3276                         return NULL;
3277                 pos = buf;
3278                 end = pos + 4000;
3279
3280                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3281                         struct excluded_ssid *e;
3282                         int ret;
3283
3284                         e = &cred->excluded_ssid[i];
3285                         ret = os_snprintf(pos, end - pos, "%s%s",
3286                                           i > 0 ? "\n" : "",
3287                                           wpa_ssid_txt(e->ssid, e->ssid_len));
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, "roaming_partner") == 0) {
3297                 unsigned int i;
3298                 char *buf, *end, *pos;
3299
3300                 if (!cred->num_roaming_partner)
3301                         return NULL;
3302
3303                 buf = os_malloc(4000);
3304                 if (buf == NULL)
3305                         return NULL;
3306                 pos = buf;
3307                 end = pos + 4000;
3308
3309                 for (i = 0; i < cred->num_roaming_partner; i++) {
3310                         struct roaming_partner *p;
3311                         int ret;
3312
3313                         p = &cred->roaming_partner[i];
3314                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3315                                           i > 0 ? "\n" : "",
3316                                           p->fqdn, p->exact_match, p->priority,
3317                                           p->country);
3318                         if (os_snprintf_error(end - pos, ret))
3319                                 return buf;
3320                         pos += ret;
3321                 }
3322
3323                 return buf;
3324         }
3325
3326         if (os_strcmp(var, "provisioning_sp") == 0)
3327                 return alloc_strdup(cred->provisioning_sp);
3328
3329         return NULL;
3330 }
3331
3332
3333 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3334 {
3335         struct wpa_cred *cred;
3336
3337         cred = config->cred;
3338         while (cred) {
3339                 if (id == cred->id)
3340                         break;
3341                 cred = cred->next;
3342         }
3343
3344         return cred;
3345 }
3346
3347
3348 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3349 {
3350         int id;
3351         struct wpa_cred *cred, *last = NULL;
3352
3353         id = -1;
3354         cred = config->cred;
3355         while (cred) {
3356                 if (cred->id > id)
3357                         id = cred->id;
3358                 last = cred;
3359                 cred = cred->next;
3360         }
3361         id++;
3362
3363         cred = os_zalloc(sizeof(*cred));
3364         if (cred == NULL)
3365                 return NULL;
3366         cred->id = id;
3367         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3368         if (last)
3369                 last->next = cred;
3370         else
3371                 config->cred = cred;
3372
3373         return cred;
3374 }
3375
3376
3377 int wpa_config_remove_cred(struct wpa_config *config, int id)
3378 {
3379         struct wpa_cred *cred, *prev = NULL;
3380
3381         cred = config->cred;
3382         while (cred) {
3383                 if (id == cred->id)
3384                         break;
3385                 prev = cred;
3386                 cred = cred->next;
3387         }
3388
3389         if (cred == NULL)
3390                 return -1;
3391
3392         if (prev)
3393                 prev->next = cred->next;
3394         else
3395                 config->cred = cred->next;
3396
3397         wpa_config_free_cred(cred);
3398         return 0;
3399 }
3400
3401
3402 #ifndef CONFIG_NO_CONFIG_BLOBS
3403 /**
3404  * wpa_config_get_blob - Get a named configuration blob
3405  * @config: Configuration data from wpa_config_read()
3406  * @name: Name of the blob
3407  * Returns: Pointer to blob data or %NULL if not found
3408  */
3409 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3410                                                    const char *name)
3411 {
3412         struct wpa_config_blob *blob = config->blobs;
3413
3414         while (blob) {
3415                 if (os_strcmp(blob->name, name) == 0)
3416                         return blob;
3417                 blob = blob->next;
3418         }
3419         return NULL;
3420 }
3421
3422
3423 /**
3424  * wpa_config_set_blob - Set or add a named configuration blob
3425  * @config: Configuration data from wpa_config_read()
3426  * @blob: New value for the blob
3427  *
3428  * Adds a new configuration blob or replaces the current value of an existing
3429  * blob.
3430  */
3431 void wpa_config_set_blob(struct wpa_config *config,
3432                          struct wpa_config_blob *blob)
3433 {
3434         wpa_config_remove_blob(config, blob->name);
3435         blob->next = config->blobs;
3436         config->blobs = blob;
3437 }
3438
3439
3440 /**
3441  * wpa_config_free_blob - Free blob data
3442  * @blob: Pointer to blob to be freed
3443  */
3444 void wpa_config_free_blob(struct wpa_config_blob *blob)
3445 {
3446         if (blob) {
3447                 os_free(blob->name);
3448                 bin_clear_free(blob->data, blob->len);
3449                 os_free(blob);
3450         }
3451 }
3452
3453
3454 /**
3455  * wpa_config_remove_blob - Remove a named configuration blob
3456  * @config: Configuration data from wpa_config_read()
3457  * @name: Name of the blob to remove
3458  * Returns: 0 if blob was removed or -1 if blob was not found
3459  */
3460 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3461 {
3462         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3463
3464         while (pos) {
3465                 if (os_strcmp(pos->name, name) == 0) {
3466                         if (prev)
3467                                 prev->next = pos->next;
3468                         else
3469                                 config->blobs = pos->next;
3470                         wpa_config_free_blob(pos);
3471                         return 0;
3472                 }
3473                 prev = pos;
3474                 pos = pos->next;
3475         }
3476
3477         return -1;
3478 }
3479 #endif /* CONFIG_NO_CONFIG_BLOBS */
3480
3481
3482 /**
3483  * wpa_config_alloc_empty - Allocate an empty configuration
3484  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3485  * socket
3486  * @driver_param: Driver parameters
3487  * Returns: Pointer to allocated configuration data or %NULL on failure
3488  */
3489 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3490                                            const char *driver_param)
3491 {
3492         struct wpa_config *config;
3493         const int aCWmin = 4, aCWmax = 10;
3494         const struct hostapd_wmm_ac_params ac_bk =
3495                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3496         const struct hostapd_wmm_ac_params ac_be =
3497                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3498         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3499                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3500         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3501                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3502
3503         config = os_zalloc(sizeof(*config));
3504         if (config == NULL)
3505                 return NULL;
3506         config->eapol_version = DEFAULT_EAPOL_VERSION;
3507         config->ap_scan = DEFAULT_AP_SCAN;
3508         config->user_mpm = DEFAULT_USER_MPM;
3509         config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
3510         config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
3511         config->fast_reauth = DEFAULT_FAST_REAUTH;
3512         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3513         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3514         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3515         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3516         config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
3517         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3518         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3519         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3520         config->max_num_sta = DEFAULT_MAX_NUM_STA;
3521         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3522         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3523         config->wmm_ac_params[0] = ac_be;
3524         config->wmm_ac_params[1] = ac_bk;
3525         config->wmm_ac_params[2] = ac_vi;
3526         config->wmm_ac_params[3] = ac_vo;
3527         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3528         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3529         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3530         config->cert_in_cb = DEFAULT_CERT_IN_CB;
3531
3532         if (ctrl_interface)
3533                 config->ctrl_interface = os_strdup(ctrl_interface);
3534         if (driver_param)
3535                 config->driver_param = os_strdup(driver_param);
3536
3537         return config;
3538 }
3539
3540
3541 #ifndef CONFIG_NO_STDOUT_DEBUG
3542 /**
3543  * wpa_config_debug_dump_networks - Debug dump of configured networks
3544  * @config: Configuration data from wpa_config_read()
3545  */
3546 void wpa_config_debug_dump_networks(struct wpa_config *config)
3547 {
3548         int prio;
3549         struct wpa_ssid *ssid;
3550
3551         for (prio = 0; prio < config->num_prio; prio++) {
3552                 ssid = config->pssid[prio];
3553                 wpa_printf(MSG_DEBUG, "Priority group %d",
3554                            ssid->priority);
3555                 while (ssid) {
3556                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3557                                    ssid->id,
3558                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3559                         ssid = ssid->pnext;
3560                 }
3561         }
3562 }
3563 #endif /* CONFIG_NO_STDOUT_DEBUG */
3564
3565
3566 struct global_parse_data {
3567         char *name;
3568         int (*parser)(const struct global_parse_data *data,
3569                       struct wpa_config *config, int line, const char *value);
3570         int (*get)(const char *name, struct wpa_config *config, long offset,
3571                    char *buf, size_t buflen, int pretty_print);
3572         void *param1, *param2, *param3;
3573         unsigned int changed_flag;
3574 };
3575
3576
3577 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3578                                        struct wpa_config *config, int line,
3579                                        const char *pos)
3580 {
3581         int val, *dst;
3582         char *end;
3583
3584         dst = (int *) (((u8 *) config) + (long) data->param1);
3585         val = strtol(pos, &end, 0);
3586         if (*end) {
3587                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3588                            line, pos);
3589                 return -1;
3590         }
3591         *dst = val;
3592
3593         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3594
3595         if (data->param2 && *dst < (long) data->param2) {
3596                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3597                            "min_value=%ld)", line, data->name, *dst,
3598                            (long) data->param2);
3599                 *dst = (long) data->param2;
3600                 return -1;
3601         }
3602
3603         if (data->param3 && *dst > (long) data->param3) {
3604                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3605                            "max_value=%ld)", line, data->name, *dst,
3606                            (long) data->param3);
3607                 *dst = (long) data->param3;
3608                 return -1;
3609         }
3610
3611         return 0;
3612 }
3613
3614
3615 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3616                                        struct wpa_config *config, int line,
3617                                        const char *pos)
3618 {
3619         size_t len;
3620         char **dst, *tmp;
3621
3622         len = os_strlen(pos);
3623         if (data->param2 && len < (size_t) data->param2) {
3624                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3625                            "min_len=%ld)", line, data->name,
3626                            (unsigned long) len, (long) data->param2);
3627                 return -1;
3628         }
3629
3630         if (data->param3 && len > (size_t) data->param3) {
3631                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3632                            "max_len=%ld)", line, data->name,
3633                            (unsigned long) len, (long) data->param3);
3634                 return -1;
3635         }
3636
3637         tmp = os_strdup(pos);
3638         if (tmp == NULL)
3639                 return -1;
3640
3641         dst = (char **) (((u8 *) config) + (long) data->param1);
3642         os_free(*dst);
3643         *dst = tmp;
3644         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3645
3646         return 0;
3647 }
3648
3649
3650 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3651                                      struct wpa_config *config, int line,
3652                                      const char *pos)
3653 {
3654         size_t len;
3655         char *tmp;
3656         int res;
3657
3658         tmp = wpa_config_parse_string(pos, &len);
3659         if (tmp == NULL) {
3660                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3661                            line, data->name);
3662                 return -1;
3663         }
3664
3665         res = wpa_global_config_parse_str(data, config, line, tmp);
3666         os_free(tmp);
3667         return res;
3668 }
3669
3670
3671 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3672                                        struct wpa_config *config, int line,
3673                                        const char *pos)
3674 {
3675         size_t len;
3676         struct wpabuf **dst, *tmp;
3677
3678         len = os_strlen(pos);
3679         if (len & 0x01)
3680                 return -1;
3681
3682         tmp = wpabuf_alloc(len / 2);
3683         if (tmp == NULL)
3684                 return -1;
3685
3686         if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3687                 wpabuf_free(tmp);
3688                 return -1;
3689         }
3690
3691         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3692         wpabuf_free(*dst);
3693         *dst = tmp;
3694         wpa_printf(MSG_DEBUG, "%s", data->name);
3695
3696         return 0;
3697 }
3698
3699
3700 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3701                                         struct wpa_config *config, int line,
3702                                         const char *value)
3703 {
3704         int *freqs;
3705
3706         freqs = wpa_config_parse_int_array(value);
3707         if (freqs == NULL)
3708                 return -1;
3709         if (freqs[0] == 0) {
3710                 os_free(freqs);
3711                 freqs = NULL;
3712         }
3713         os_free(config->freq_list);
3714         config->freq_list = freqs;
3715         return 0;
3716 }
3717
3718
3719 #ifdef CONFIG_P2P
3720 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3721                                         struct wpa_config *config, int line,
3722                                         const char *pos)
3723 {
3724         u32 *dst;
3725         struct hostapd_ip_addr addr;
3726
3727         if (hostapd_parse_ip_addr(pos, &addr) < 0)
3728                 return -1;
3729         if (addr.af != AF_INET)
3730                 return -1;
3731
3732         dst = (u32 *) (((u8 *) config) + (long) data->param1);
3733         os_memcpy(dst, &addr.u.v4.s_addr, 4);
3734         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3735                    WPA_GET_BE32((u8 *) dst));
3736
3737         return 0;
3738 }
3739 #endif /* CONFIG_P2P */
3740
3741
3742 static int wpa_config_process_country(const struct global_parse_data *data,
3743                                       struct wpa_config *config, int line,
3744                                       const char *pos)
3745 {
3746         if (!pos[0] || !pos[1]) {
3747                 wpa_printf(MSG_DEBUG, "Invalid country set");
3748                 return -1;
3749         }
3750         config->country[0] = pos[0];
3751         config->country[1] = pos[1];
3752         wpa_printf(MSG_DEBUG, "country='%c%c'",
3753                    config->country[0], config->country[1]);
3754         return 0;
3755 }
3756
3757
3758 static int wpa_config_process_load_dynamic_eap(
3759         const struct global_parse_data *data, struct wpa_config *config,
3760         int line, const char *so)
3761 {
3762         int ret;
3763         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3764         ret = eap_peer_method_load(so);
3765         if (ret == -2) {
3766                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3767                            "reloading.");
3768         } else if (ret) {
3769                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3770                            "method '%s'.", line, so);
3771                 return -1;
3772         }
3773
3774         return 0;
3775 }
3776
3777
3778 #ifdef CONFIG_WPS
3779
3780 static int wpa_config_process_uuid(const struct global_parse_data *data,
3781                                    struct wpa_config *config, int line,
3782                                    const char *pos)
3783 {
3784         char buf[40];
3785         if (uuid_str2bin(pos, config->uuid)) {
3786                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3787                 return -1;
3788         }
3789         uuid_bin2str(config->uuid, buf, sizeof(buf));
3790         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3791         return 0;
3792 }
3793
3794
3795 static int wpa_config_process_device_type(
3796         const struct global_parse_data *data,
3797         struct wpa_config *config, int line, const char *pos)
3798 {
3799         return wps_dev_type_str2bin(pos, config->device_type);
3800 }
3801
3802
3803 static int wpa_config_process_os_version(const struct global_parse_data *data,
3804                                          struct wpa_config *config, int line,
3805                                          const char *pos)
3806 {
3807         if (hexstr2bin(pos, config->os_version, 4)) {
3808                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3809                 return -1;
3810         }
3811         wpa_printf(MSG_DEBUG, "os_version=%08x",
3812                    WPA_GET_BE32(config->os_version));
3813         return 0;
3814 }
3815
3816
3817 static int wpa_config_process_wps_vendor_ext_m1(
3818         const struct global_parse_data *data,
3819         struct wpa_config *config, int line, const char *pos)
3820 {
3821         struct wpabuf *tmp;
3822         int len = os_strlen(pos) / 2;
3823         u8 *p;
3824
3825         if (!len) {
3826                 wpa_printf(MSG_ERROR, "Line %d: "
3827                            "invalid wps_vendor_ext_m1", line);
3828                 return -1;
3829         }
3830
3831         tmp = wpabuf_alloc(len);
3832         if (tmp) {
3833                 p = wpabuf_put(tmp, len);
3834
3835                 if (hexstr2bin(pos, p, len)) {
3836                         wpa_printf(MSG_ERROR, "Line %d: "
3837                                    "invalid wps_vendor_ext_m1", line);
3838                         wpabuf_free(tmp);
3839                         return -1;
3840                 }
3841
3842                 wpabuf_free(config->wps_vendor_ext_m1);
3843                 config->wps_vendor_ext_m1 = tmp;
3844         } else {
3845                 wpa_printf(MSG_ERROR, "Can not allocate "
3846                            "memory for wps_vendor_ext_m1");
3847                 return -1;
3848         }
3849
3850         return 0;
3851 }
3852
3853 #endif /* CONFIG_WPS */
3854
3855 #ifdef CONFIG_P2P
3856 static int wpa_config_process_sec_device_type(
3857         const struct global_parse_data *data,
3858         struct wpa_config *config, int line, const char *pos)
3859 {
3860         int idx;
3861
3862         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3863                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3864                            "items", line);
3865                 return -1;
3866         }
3867
3868         idx = config->num_sec_device_types;
3869
3870         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3871                 return -1;
3872
3873         config->num_sec_device_types++;
3874         return 0;
3875 }
3876
3877
3878 static int wpa_config_process_p2p_pref_chan(
3879         const struct global_parse_data *data,
3880         struct wpa_config *config, int line, const char *pos)
3881 {
3882         struct p2p_channel *pref = NULL, *n;
3883         unsigned int num = 0;
3884         const char *pos2;
3885         u8 op_class, chan;
3886
3887         /* format: class:chan,class:chan,... */
3888
3889         while (*pos) {
3890                 op_class = atoi(pos);
3891                 pos2 = os_strchr(pos, ':');
3892                 if (pos2 == NULL)
3893                         goto fail;
3894                 pos2++;
3895                 chan = atoi(pos2);
3896
3897                 n = os_realloc_array(pref, num + 1,
3898                                      sizeof(struct p2p_channel));
3899                 if (n == NULL)
3900                         goto fail;
3901                 pref = n;
3902                 pref[num].op_class = op_class;
3903                 pref[num].chan = chan;
3904                 num++;
3905
3906                 pos = os_strchr(pos2, ',');
3907                 if (pos == NULL)
3908                         break;
3909                 pos++;
3910         }
3911
3912         os_free(config->p2p_pref_chan);
3913         config->p2p_pref_chan = pref;
3914         config->num_p2p_pref_chan = num;
3915         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3916                     (u8 *) config->p2p_pref_chan,
3917                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3918
3919         return 0;
3920
3921 fail:
3922         os_free(pref);
3923         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3924         return -1;
3925 }
3926
3927
3928 static int wpa_config_process_p2p_no_go_freq(
3929         const struct global_parse_data *data,
3930         struct wpa_config *config, int line, const char *pos)
3931 {
3932         int ret;
3933
3934         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3935         if (ret < 0) {
3936                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3937                 return -1;
3938         }
3939
3940         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3941                    config->p2p_no_go_freq.num);
3942
3943         return 0;
3944 }
3945
3946 #endif /* CONFIG_P2P */
3947
3948
3949 static int wpa_config_process_hessid(
3950         const struct global_parse_data *data,
3951         struct wpa_config *config, int line, const char *pos)
3952 {
3953         if (hwaddr_aton2(pos, config->hessid) < 0) {
3954                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3955                            line, pos);
3956                 return -1;
3957         }
3958
3959         return 0;
3960 }
3961
3962
3963 static int wpa_config_process_sae_groups(
3964         const struct global_parse_data *data,
3965         struct wpa_config *config, int line, const char *pos)
3966 {
3967         int *groups = wpa_config_parse_int_array(pos);
3968         if (groups == NULL) {
3969                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3970                            line, pos);
3971                 return -1;
3972         }
3973
3974         os_free(config->sae_groups);
3975         config->sae_groups = groups;
3976
3977         return 0;
3978 }
3979
3980
3981 static int wpa_config_process_ap_vendor_elements(
3982         const struct global_parse_data *data,
3983         struct wpa_config *config, int line, const char *pos)
3984 {
3985         struct wpabuf *tmp;
3986         int len = os_strlen(pos) / 2;
3987         u8 *p;
3988
3989         if (!len) {
3990                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3991                            line);
3992                 return -1;
3993         }
3994
3995         tmp = wpabuf_alloc(len);
3996         if (tmp) {
3997                 p = wpabuf_put(tmp, len);
3998
3999                 if (hexstr2bin(pos, p, len)) {
4000                         wpa_printf(MSG_ERROR, "Line %d: invalid "
4001                                    "ap_vendor_elements", line);
4002                         wpabuf_free(tmp);
4003                         return -1;
4004                 }
4005
4006                 wpabuf_free(config->ap_vendor_elements);
4007                 config->ap_vendor_elements = tmp;
4008         } else {
4009                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4010                            "ap_vendor_elements");
4011                 return -1;
4012         }
4013
4014         return 0;
4015 }
4016
4017
4018 #ifdef CONFIG_CTRL_IFACE
4019 static int wpa_config_process_no_ctrl_interface(
4020         const struct global_parse_data *data,
4021         struct wpa_config *config, int line, const char *pos)
4022 {
4023         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4024         os_free(config->ctrl_interface);
4025         config->ctrl_interface = NULL;
4026         return 0;
4027 }
4028 #endif /* CONFIG_CTRL_IFACE */
4029
4030
4031 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4032                               long offset, char *buf, size_t buflen,
4033                               int pretty_print)
4034 {
4035         int *val = (int *) (((u8 *) config) + (long) offset);
4036
4037         if (pretty_print)
4038                 return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4039         return os_snprintf(buf, buflen, "%d", *val);
4040 }
4041
4042
4043 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4044                               long offset, char *buf, size_t buflen,
4045                               int pretty_print)
4046 {
4047         char **val = (char **) (((u8 *) config) + (long) offset);
4048         int res;
4049
4050         if (pretty_print)
4051                 res = os_snprintf(buf, buflen, "%s=%s\n", name,
4052                                   *val ? *val : "null");
4053         else if (!*val)
4054                 return -1;
4055         else
4056                 res = os_snprintf(buf, buflen, "%s", *val);
4057         if (os_snprintf_error(buflen, res))
4058                 res = -1;
4059
4060         return res;
4061 }
4062
4063
4064 #ifdef CONFIG_P2P
4065 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4066                                long offset, char *buf, size_t buflen,
4067                                int pretty_print)
4068 {
4069         void *val = ((u8 *) config) + (long) offset;
4070         int res;
4071         char addr[INET_ADDRSTRLEN];
4072
4073         if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4074                 return -1;
4075
4076         if (pretty_print)
4077                 res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4078         else
4079                 res = os_snprintf(buf, buflen, "%s", addr);
4080
4081         if (os_snprintf_error(buflen, res))
4082                 res = -1;
4083
4084         return res;
4085 }
4086 #endif /* CONFIG_P2P */
4087
4088
4089 #ifdef OFFSET
4090 #undef OFFSET
4091 #endif /* OFFSET */
4092 /* OFFSET: Get offset of a variable within the wpa_config structure */
4093 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4094
4095 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4096 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4097 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4098 #define INT(f) _INT(f), NULL, NULL
4099 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4100 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4101 #define STR(f) _STR(f), NULL, NULL
4102 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4103 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4104 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4,  \
4105         OFFSET(f), NULL, NULL
4106
4107 static const struct global_parse_data global_fields[] = {
4108 #ifdef CONFIG_CTRL_IFACE
4109         { STR(ctrl_interface), 0 },
4110         { FUNC_NO_VAR(no_ctrl_interface), 0 },
4111         { STR(ctrl_interface_group), 0 } /* deprecated */,
4112 #endif /* CONFIG_CTRL_IFACE */
4113 #ifdef CONFIG_MACSEC
4114         { INT_RANGE(eapol_version, 1, 3), 0 },
4115 #else /* CONFIG_MACSEC */
4116         { INT_RANGE(eapol_version, 1, 2), 0 },
4117 #endif /* CONFIG_MACSEC */
4118         { INT(ap_scan), 0 },
4119         { FUNC(bgscan), 0 },
4120 #ifdef CONFIG_MESH
4121         { INT(user_mpm), 0 },
4122         { INT_RANGE(max_peer_links, 0, 255), 0 },
4123         { INT(mesh_max_inactivity), 0 },
4124 #endif /* CONFIG_MESH */
4125         { INT(disable_scan_offload), 0 },
4126         { INT(fast_reauth), 0 },
4127         { STR(opensc_engine_path), 0 },
4128         { STR(pkcs11_engine_path), 0 },
4129         { STR(pkcs11_module_path), 0 },
4130         { STR(openssl_ciphers), 0 },
4131         { STR(pcsc_reader), 0 },
4132         { STR(pcsc_pin), 0 },
4133         { INT(external_sim), 0 },
4134         { STR(driver_param), 0 },
4135         { INT(dot11RSNAConfigPMKLifetime), 0 },
4136         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4137         { INT(dot11RSNAConfigSATimeout), 0 },
4138 #ifndef CONFIG_NO_CONFIG_WRITE
4139         { INT(update_config), 0 },
4140 #endif /* CONFIG_NO_CONFIG_WRITE */
4141         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4142 #ifdef CONFIG_WPS
4143         { FUNC(uuid), CFG_CHANGED_UUID },
4144         { STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4145           CFG_CHANGED_DEVICE_NAME },
4146         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4147         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4148         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4149         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4150         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4151         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4152         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4153         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4154         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4155 #endif /* CONFIG_WPS */
4156 #ifdef CONFIG_P2P
4157         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4158         { INT(p2p_listen_reg_class), 0 },
4159         { INT(p2p_listen_channel), 0 },
4160         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4161         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4162         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4163         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4164         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4165         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4166         { INT(p2p_group_idle), 0 },
4167         { INT_RANGE(p2p_passphrase_len, 8, 63),
4168           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4169         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4170         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4171         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4172         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4173         { INT(p2p_go_ht40), 0 },
4174         { INT(p2p_go_vht), 0 },
4175         { INT(p2p_disabled), 0 },
4176         { INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4177         { INT(p2p_no_group_iface), 0 },
4178         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4179         { IPV4(ip_addr_go), 0 },
4180         { IPV4(ip_addr_mask), 0 },
4181         { IPV4(ip_addr_start), 0 },
4182         { IPV4(ip_addr_end), 0 },
4183         { INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4184 #endif /* CONFIG_P2P */
4185         { FUNC(country), CFG_CHANGED_COUNTRY },
4186         { INT(bss_max_count), 0 },
4187         { INT(bss_expiration_age), 0 },
4188         { INT(bss_expiration_scan_count), 0 },
4189         { INT_RANGE(filter_ssids, 0, 1), 0 },
4190         { INT_RANGE(filter_rssi, -100, 0), 0 },
4191         { INT(max_num_sta), 0 },
4192         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4193 #ifdef CONFIG_HS20
4194         { INT_RANGE(hs20, 0, 1), 0 },
4195 #endif /* CONFIG_HS20 */
4196         { INT_RANGE(interworking, 0, 1), 0 },
4197         { FUNC(hessid), 0 },
4198         { INT_RANGE(access_network_type, 0, 15), 0 },
4199         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4200         { STR(autoscan), 0 },
4201         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4202           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4203         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4204         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4205         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4206         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4207         { INT(p2p_go_max_inactivity), 0 },
4208         { INT_RANGE(auto_interworking, 0, 1), 0 },
4209         { INT(okc), 0 },
4210         { INT(pmf), 0 },
4211         { FUNC(sae_groups), 0 },
4212         { INT(dtim_period), 0 },
4213         { INT(beacon_int), 0 },
4214         { FUNC(ap_vendor_elements), 0 },
4215         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4216         { FUNC(freq_list), 0 },
4217         { INT(scan_cur_freq), 0 },
4218         { INT(sched_scan_interval), 0 },
4219         { INT(tdls_external_control), 0},
4220         { STR(osu_dir), 0 },
4221         { STR(wowlan_triggers), 0 },
4222         { INT(p2p_search_delay), 0},
4223         { INT(mac_addr), 0 },
4224         { INT(rand_addr_lifetime), 0 },
4225         { INT(preassoc_mac_addr), 0 },
4226         { INT(key_mgmt_offload), 0},
4227         { INT(passive_scan), 0 },
4228         { INT(reassoc_same_bss_optim), 0 },
4229         { INT(wps_priority), 0},
4230 };
4231
4232 #undef FUNC
4233 #undef _INT
4234 #undef INT
4235 #undef INT_RANGE
4236 #undef _STR
4237 #undef STR
4238 #undef STR_RANGE
4239 #undef BIN
4240 #undef IPV4
4241 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4242
4243
4244 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4245 {
4246         int result = 0;
4247         size_t i;
4248
4249         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4250                 const struct global_parse_data *field = &global_fields[i];
4251                 int tmp;
4252
4253                 if (!field->get)
4254                         continue;
4255
4256                 tmp = field->get(field->name, config, (long) field->param1,
4257                                  buf, buflen, 1);
4258                 if (tmp < 0)
4259                         return -1;
4260                 buf += tmp;
4261                 buflen -= tmp;
4262                 result += tmp;
4263         }
4264         return result;
4265 }
4266
4267
4268 int wpa_config_get_value(const char *name, struct wpa_config *config,
4269                          char *buf, size_t buflen)
4270 {
4271         size_t i;
4272
4273         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4274                 const struct global_parse_data *field = &global_fields[i];
4275
4276                 if (os_strcmp(name, field->name) != 0)
4277                         continue;
4278                 if (!field->get)
4279                         break;
4280                 return field->get(name, config, (long) field->param1,
4281                                   buf, buflen, 0);
4282         }
4283
4284         return -1;
4285 }
4286
4287
4288 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4289 {
4290         size_t i;
4291         int ret = 0;
4292
4293         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4294                 const struct global_parse_data *field = &global_fields[i];
4295                 size_t flen = os_strlen(field->name);
4296                 if (os_strncmp(pos, field->name, flen) != 0 ||
4297                     pos[flen] != '=')
4298                         continue;
4299
4300                 if (field->parser(field, config, line, pos + flen + 1)) {
4301                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4302                                    "parse '%s'.", line, pos);
4303                         ret = -1;
4304                 }
4305                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4306                         config->wps_nfc_pw_from_config = 1;
4307                 config->changed_parameters |= field->changed_flag;
4308                 break;
4309         }
4310         if (i == NUM_GLOBAL_FIELDS) {
4311 #ifdef CONFIG_AP
4312                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4313                         char *tmp = os_strchr(pos, '=');
4314                         if (tmp == NULL) {
4315                                 if (line < 0)
4316                                         return -1;
4317                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4318                                            "'%s'", line, pos);
4319                                 return -1;
4320                         }
4321                         *tmp++ = '\0';
4322                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4323                                                   tmp)) {
4324                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4325                                            "AC item", line);
4326                                 return -1;
4327                         }
4328                 }
4329 #endif /* CONFIG_AP */
4330                 if (line < 0)
4331                         return -1;
4332                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4333                            line, pos);
4334                 ret = -1;
4335         }
4336
4337         return ret;
4338 }