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 "fst/fst.h"
  19 #include "config.h"
  20
  21
  22 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
  23 #define NO_CONFIG_WRITE
  24 #endif
  25
  26 /*
  27  * Structure for network configuration parsing. This data is used to implement
  28  * a generic parser for each network block variable. The table of configuration
  29  * variables is defined below in this file (ssid_fields[]).
  30  */
  31 struct parse_data {
  32         /* Configuration variable name */
  33         char *name;
  34
  35         /* Parser function for this variable. The parser functions return 0 or 1
  36          * to indicate success. Value 0 indicates that the parameter value may
  37          * have changed while value 1 means that the value did not change.
  38          * Error cases (failure to parse the string) are indicated by returning
  39          * -1. */
  40         int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
  41                       int line, const char *value);
  42
  43 #ifndef NO_CONFIG_WRITE
  44         /* Writer function (i.e., to get the variable in text format from
  45          * internal presentation). */
  46         char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
  47 #endif /* NO_CONFIG_WRITE */
  48
  49         /* Variable specific parameters for the parser. */
  50         void *param1, *param2, *param3, *param4;
  51
  52         /* 0 = this variable can be included in debug output and ctrl_iface
  53          * 1 = this variable contains key/private data and it must not be
  54          *     included in debug output unless explicitly requested. In
  55          *     addition, this variable will not be readable through the
  56          *     ctrl_iface.
  57          */
  58         int key_data;
  59 };
  60
  61
  62 static int wpa_config_parse_str(const struct parse_data *data,
  63                                 struct wpa_ssid *ssid,
  64                                 int line, const char *value)
  65 {
  66         size_t res_len, *dst_len, prev_len;
  67         char **dst, *tmp;
  68
  69         if (os_strcmp(value, "NULL") == 0) {
  70                 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
  71                            data->name);
  72                 tmp = NULL;
  73                 res_len = 0;
  74                 goto set;
  75         }
  76
  77         tmp = wpa_config_parse_string(value, &res_len);
  78         if (tmp == NULL) {
  79                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
  80                            line, data->name,
  81                            data->key_data ? "[KEY DATA REMOVED]" : value);
  82                 return -1;
  83         }
  84
  85         if (data->key_data) {
  86                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
  87                                       (u8 *) tmp, res_len);
  88         } else {
  89                 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
  90                                   (u8 *) tmp, res_len);
  91         }
  92
  93         if (data->param3 && res_len < (size_t) data->param3) {
  94                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
  95                            "min_len=%ld)", line, data->name,
  96                            (unsigned long) res_len, (long) data->param3);
  97                 os_free(tmp);
  98                 return -1;
  99         }
 100
 101         if (data->param4 && res_len > (size_t) data->param4) {
 102                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
 103                            "max_len=%ld)", line, data->name,
 104                            (unsigned long) res_len, (long) data->param4);
 105                 os_free(tmp);
 106                 return -1;
 107         }
 108
 109 set:
 110         dst = (char **) (((u8 *) ssid) + (long) data->param1);
 111         dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
 112
 113         if (data->param2)
 114                 prev_len = *dst_len;
 115         else if (*dst)
 116                 prev_len = os_strlen(*dst);
 117         else
 118                 prev_len = 0;
 119         if ((*dst == NULL && tmp == NULL) ||
 120             (*dst && tmp && prev_len == res_len &&
 121              os_memcmp(*dst, tmp, res_len) == 0)) {
 122                 /* No change to the previously configured value */
 123                 os_free(tmp);
 124                 return 1;
 125         }
 126
 127         os_free(*dst);
 128         *dst = tmp;
 129         if (data->param2)
 130                 *dst_len = res_len;
 131
 132         return 0;
 133 }
 134
 135
 136 #ifndef NO_CONFIG_WRITE
 137 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
 138 {
 139         char *buf;
 140
 141         buf = os_malloc(len + 3);
 142         if (buf == NULL)
 143                 return NULL;
 144         buf[0] = '"';
 145         os_memcpy(buf + 1, value, len);
 146         buf[len + 1] = '"';
 147         buf[len + 2] = '\0';
 148
 149         return buf;
 150 }
 151
 152
 153 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
 154 {
 155         char *buf;
 156
 157         buf = os_zalloc(2 * len + 1);
 158         if (buf == NULL)
 159                 return NULL;
 160         wpa_snprintf_hex(buf, 2 * len + 1, value, len);
 161
 162         return buf;
 163 }
 164
 165
 166 static char * wpa_config_write_string(const u8 *value, size_t len)
 167 {
 168         if (value == NULL)
 169                 return NULL;
 170
 171         if (is_hex(value, len))
 172                 return wpa_config_write_string_hex(value, len);
 173         else
 174                 return wpa_config_write_string_ascii(value, len);
 175 }
 176
 177
 178 static char * wpa_config_write_str(const struct parse_data *data,
 179                                    struct wpa_ssid *ssid)
 180 {
 181         size_t len;
 182         char **src;
 183
 184         src = (char **) (((u8 *) ssid) + (long) data->param1);
 185         if (*src == NULL)
 186                 return NULL;
 187
 188         if (data->param2)
 189                 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
 190         else
 191                 len = os_strlen(*src);
 192
 193         return wpa_config_write_string((const u8 *) *src, len);
 194 }
 195 #endif /* NO_CONFIG_WRITE */
 196
 197
 198 static int wpa_config_parse_int(const struct parse_data *data,
 199                                 struct wpa_ssid *ssid,
 200                                 int line, const char *value)
 201 {
 202         int val, *dst;
 203         char *end;
 204
 205         dst = (int *) (((u8 *) ssid) + (long) data->param1);
 206         val = strtol(value, &end, 0);
 207         if (*end) {
 208                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
 209                            line, value);
 210                 return -1;
 211         }
 212
 213         if (*dst == val)
 214                 return 1;
 215         *dst = val;
 216         wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
 217
 218         if (data->param3 && *dst < (long) data->param3) {
 219                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
 220                            "min_value=%ld)", line, data->name, *dst,
 221                            (long) data->param3);
 222                 *dst = (long) data->param3;
 223                 return -1;
 224         }
 225
 226         if (data->param4 && *dst > (long) data->param4) {
 227                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
 228                            "max_value=%ld)", line, data->name, *dst,
 229                            (long) data->param4);
 230                 *dst = (long) data->param4;
 231                 return -1;
 232         }
 233
 234         return 0;
 235 }
 236
 237
 238 #ifndef NO_CONFIG_WRITE
 239 static char * wpa_config_write_int(const struct parse_data *data,
 240                                    struct wpa_ssid *ssid)
 241 {
 242         int *src, res;
 243         char *value;
 244
 245         src = (int *) (((u8 *) ssid) + (long) data->param1);
 246
 247         value = os_malloc(20);
 248         if (value == NULL)
 249                 return NULL;
 250         res = os_snprintf(value, 20, "%d", *src);
 251         if (os_snprintf_error(20, res)) {
 252                 os_free(value);
 253                 return NULL;
 254         }
 255         value[20 - 1] = '\0';
 256         return value;
 257 }
 258 #endif /* NO_CONFIG_WRITE */
 259
 260
 261 static int wpa_config_parse_addr_list(const struct parse_data *data,
 262                                       int line, const char *value,
 263                                       u8 **list, size_t *num, char *name,
 264                                       u8 abort_on_error, u8 masked)
 265 {
 266         const char *pos;
 267         u8 *buf, *n, addr[2 * ETH_ALEN];
 268         size_t count;
 269
 270         buf = NULL;
 271         count = 0;
 272
 273         pos = value;
 274         while (pos && *pos) {
 275                 while (*pos == ' ')
 276                         pos++;
 277
 278                 if (hwaddr_masked_aton(pos, addr, &addr[ETH_ALEN], masked)) {
 279                         if (abort_on_error || count == 0) {
 280                                 wpa_printf(MSG_ERROR,
 281                                            "Line %d: Invalid %s address '%s'",
 282                                            line, name, value);
 283                                 os_free(buf);
 284                                 return -1;
 285                         }
 286                         /* continue anyway since this could have been from a
 287                          * truncated configuration file line */
 288                         wpa_printf(MSG_INFO,
 289                                    "Line %d: Ignore likely truncated %s address '%s'",
 290                                    line, name, pos);
 291                 } else {
 292                         n = os_realloc_array(buf, count + 1, 2 * ETH_ALEN);
 293                         if (n == NULL) {
 294                                 os_free(buf);
 295                                 return -1;
 296                         }
 297                         buf = n;
 298                         os_memmove(buf + 2 * ETH_ALEN, buf,
 299                                    count * 2 * ETH_ALEN);
 300                         os_memcpy(buf, addr, 2 * ETH_ALEN);
 301                         count++;
 302                         wpa_printf(MSG_MSGDUMP,
 303                                    "%s: addr=" MACSTR " mask=" MACSTR,
 304                                    name, MAC2STR(addr),
 305                                    MAC2STR(&addr[ETH_ALEN]));
 306                 }
 307
 308                 pos = os_strchr(pos, ' ');
 309         }
 310
 311         os_free(*list);
 312         *list = buf;
 313         *num = count;
 314
 315         return 0;
 316 }
 317
 318
 319 #ifndef NO_CONFIG_WRITE
 320 static char * wpa_config_write_addr_list(const struct parse_data *data,
 321                                          const u8 *list, size_t num, char *name)
 322 {
 323         char *value, *end, *pos;
 324         int res;
 325         size_t i;
 326
 327         if (list == NULL || num == 0)
 328                 return NULL;
 329
 330         value = os_malloc(2 * 20 * num);
 331         if (value == NULL)
 332                 return NULL;
 333         pos = value;
 334         end = value + 2 * 20 * num;
 335
 336         for (i = num; i > 0; i--) {
 337                 const u8 *a = list + (i - 1) * 2 * ETH_ALEN;
 338                 const u8 *m = a + ETH_ALEN;
 339
 340                 if (i < num)
 341                         *pos++ = ' ';
 342                 res = hwaddr_mask_txt(pos, end - pos, a, m);
 343                 if (res < 0) {
 344                         os_free(value);
 345                         return NULL;
 346                 }
 347                 pos += res;
 348         }
 349
 350         return value;
 351 }
 352 #endif /* NO_CONFIG_WRITE */
 353
 354 static int wpa_config_parse_bssid(const struct parse_data *data,
 355                                   struct wpa_ssid *ssid, int line,
 356                                   const char *value)
 357 {
 358         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
 359             os_strcmp(value, "any") == 0) {
 360                 ssid->bssid_set = 0;
 361                 wpa_printf(MSG_MSGDUMP, "BSSID any");
 362                 return 0;
 363         }
 364         if (hwaddr_aton(value, ssid->bssid)) {
 365                 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
 366                            line, value);
 367                 return -1;
 368         }
 369         ssid->bssid_set = 1;
 370         wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
 371         return 0;
 372 }
 373
 374
 375 #ifndef NO_CONFIG_WRITE
 376 static char * wpa_config_write_bssid(const struct parse_data *data,
 377                                      struct wpa_ssid *ssid)
 378 {
 379         char *value;
 380         int res;
 381
 382         if (!ssid->bssid_set)
 383                 return NULL;
 384
 385         value = os_malloc(20);
 386         if (value == NULL)
 387                 return NULL;
 388         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
 389         if (os_snprintf_error(20, res)) {
 390                 os_free(value);
 391                 return NULL;
 392         }
 393         value[20 - 1] = '\0';
 394         return value;
 395 }
 396 #endif /* NO_CONFIG_WRITE */
 397
 398
 399 static int wpa_config_parse_bssid_blacklist(const struct parse_data *data,
 400                                             struct wpa_ssid *ssid, int line,
 401                                             const char *value)
 402 {
 403         return wpa_config_parse_addr_list(data, line, value,
 404                                           &ssid->bssid_blacklist,
 405                                           &ssid->num_bssid_blacklist,
 406                                           "bssid_blacklist", 1, 1);
 407 }
 408
 409
 410 #ifndef NO_CONFIG_WRITE
 411 static char * wpa_config_write_bssid_blacklist(const struct parse_data *data,
 412                                                struct wpa_ssid *ssid)
 413 {
 414         return wpa_config_write_addr_list(data, ssid->bssid_blacklist,
 415                                           ssid->num_bssid_blacklist,
 416                                           "bssid_blacklist");
 417 }
 418 #endif /* NO_CONFIG_WRITE */
 419
 420
 421 static int wpa_config_parse_bssid_whitelist(const struct parse_data *data,
 422                                             struct wpa_ssid *ssid, int line,
 423                                             const char *value)
 424 {
 425         return wpa_config_parse_addr_list(data, line, value,
 426                                           &ssid->bssid_whitelist,
 427                                           &ssid->num_bssid_whitelist,
 428                                           "bssid_whitelist", 1, 1);
 429 }
 430
 431
 432 #ifndef NO_CONFIG_WRITE
 433 static char * wpa_config_write_bssid_whitelist(const struct parse_data *data,
 434                                                struct wpa_ssid *ssid)
 435 {
 436         return wpa_config_write_addr_list(data, ssid->bssid_whitelist,
 437                                           ssid->num_bssid_whitelist,
 438                                           "bssid_whitelist");
 439 }
 440 #endif /* NO_CONFIG_WRITE */
 441
 442
 443 static int wpa_config_parse_psk(const struct parse_data *data,
 444                                 struct wpa_ssid *ssid, int line,
 445                                 const char *value)
 446 {
 447 #ifdef CONFIG_EXT_PASSWORD
 448         if (os_strncmp(value, "ext:", 4) == 0) {
 449                 str_clear_free(ssid->passphrase);
 450                 ssid->passphrase = NULL;
 451                 ssid->psk_set = 0;
 452                 os_free(ssid->ext_psk);
 453                 ssid->ext_psk = os_strdup(value + 4);
 454                 if (ssid->ext_psk == NULL)
 455                         return -1;
 456                 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
 457                            ssid->ext_psk);
 458                 return 0;
 459         }
 460 #endif /* CONFIG_EXT_PASSWORD */
 461
 462         if (*value == '"') {
 463 #ifndef CONFIG_NO_PBKDF2
 464                 const char *pos;
 465                 size_t len;
 466
 467                 value++;
 468                 pos = os_strrchr(value, '"');
 469                 if (pos)
 470                         len = pos - value;
 471                 else
 472                         len = os_strlen(value);
 473                 if (len < 8 || len > 63) {
 474                         wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
 475                                    "length %lu (expected: 8..63) '%s'.",
 476                                    line, (unsigned long) len, value);
 477                         return -1;
 478                 }
 479                 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
 480                                       (u8 *) value, len);
 481                 if (has_ctrl_char((u8 *) value, len)) {
 482                         wpa_printf(MSG_ERROR,
 483                                    "Line %d: Invalid passphrase character",
 484                                    line);
 485                         return -1;
 486                 }
 487                 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
 488                     os_memcmp(ssid->passphrase, value, len) == 0) {
 489                         /* No change to the previously configured value */
 490                         return 1;
 491                 }
 492                 ssid->psk_set = 0;
 493                 str_clear_free(ssid->passphrase);
 494                 ssid->passphrase = dup_binstr(value, len);
 495                 if (ssid->passphrase == NULL)
 496                         return -1;
 497                 return 0;
 498 #else /* CONFIG_NO_PBKDF2 */
 499                 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
 500                            "supported.", line);
 501                 return -1;
 502 #endif /* CONFIG_NO_PBKDF2 */
 503         }
 504
 505         if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
 506             value[PMK_LEN * 2] != '\0') {
 507                 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
 508                            line, value);
 509                 return -1;
 510         }
 511
 512         str_clear_free(ssid->passphrase);
 513         ssid->passphrase = NULL;
 514
 515         ssid->psk_set = 1;
 516         wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
 517         return 0;
 518 }
 519
 520
 521 #ifndef NO_CONFIG_WRITE
 522 static char * wpa_config_write_psk(const struct parse_data *data,
 523                                    struct wpa_ssid *ssid)
 524 {
 525 #ifdef CONFIG_EXT_PASSWORD
 526         if (ssid->ext_psk) {
 527                 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
 528                 char *buf = os_malloc(len);
 529                 int res;
 530
 531                 if (buf == NULL)
 532                         return NULL;
 533                 res = os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
 534                 if (os_snprintf_error(len, res)) {
 535                         os_free(buf);
 536                         buf = NULL;
 537                 }
 538                 return buf;
 539         }
 540 #endif /* CONFIG_EXT_PASSWORD */
 541
 542         if (ssid->passphrase)
 543                 return wpa_config_write_string_ascii(
 544                         (const u8 *) ssid->passphrase,
 545                         os_strlen(ssid->passphrase));
 546
 547         if (ssid->psk_set)
 548                 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
 549
 550         return NULL;
 551 }
 552 #endif /* NO_CONFIG_WRITE */
 553
 554
 555 static int wpa_config_parse_proto(const struct parse_data *data,
 556                                   struct wpa_ssid *ssid, int line,
 557                                   const char *value)
 558 {
 559         int val = 0, last, errors = 0;
 560         char *start, *end, *buf;
 561
 562         buf = os_strdup(value);
 563         if (buf == NULL)
 564                 return -1;
 565         start = buf;
 566
 567         while (*start != '\0') {
 568                 while (*start == ' ' || *start == '\t')
 569                         start++;
 570                 if (*start == '\0')
 571                         break;
 572                 end = start;
 573                 while (*end != ' ' && *end != '\t' && *end != '\0')
 574                         end++;
 575                 last = *end == '\0';
 576                 *end = '\0';
 577                 if (os_strcmp(start, "WPA") == 0)
 578                         val |= WPA_PROTO_WPA;
 579                 else if (os_strcmp(start, "RSN") == 0 ||
 580                          os_strcmp(start, "WPA2") == 0)
 581                         val |= WPA_PROTO_RSN;
 582                 else if (os_strcmp(start, "OSEN") == 0)
 583                         val |= WPA_PROTO_OSEN;
 584                 else {
 585                         wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
 586                                    line, start);
 587                         errors++;
 588                 }
 589
 590                 if (last)
 591                         break;
 592                 start = end + 1;
 593         }
 594         os_free(buf);
 595
 596         if (val == 0) {
 597                 wpa_printf(MSG_ERROR,
 598                            "Line %d: no proto values configured.", line);
 599                 errors++;
 600         }
 601
 602         if (!errors && ssid->proto == val)
 603                 return 1;
 604         wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
 605         ssid->proto = val;
 606         return errors ? -1 : 0;
 607 }
 608
 609
 610 #ifndef NO_CONFIG_WRITE
 611 static char * wpa_config_write_proto(const struct parse_data *data,
 612                                      struct wpa_ssid *ssid)
 613 {
 614         int ret;
 615         char *buf, *pos, *end;
 616
 617         pos = buf = os_zalloc(20);
 618         if (buf == NULL)
 619                 return NULL;
 620         end = buf + 20;
 621
 622         if (ssid->proto & WPA_PROTO_WPA) {
 623                 ret = os_snprintf(pos, end - pos, "%sWPA",
 624                                   pos == buf ? "" : " ");
 625                 if (os_snprintf_error(end - pos, ret))
 626                         return buf;
 627                 pos += ret;
 628         }
 629
 630         if (ssid->proto & WPA_PROTO_RSN) {
 631                 ret = os_snprintf(pos, end - pos, "%sRSN",
 632                                   pos == buf ? "" : " ");
 633                 if (os_snprintf_error(end - pos, ret))
 634                         return buf;
 635                 pos += ret;
 636         }
 637
 638         if (ssid->proto & WPA_PROTO_OSEN) {
 639                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 640                                   pos == buf ? "" : " ");
 641                 if (os_snprintf_error(end - pos, ret))
 642                         return buf;
 643                 pos += ret;
 644         }
 645
 646         if (pos == buf) {
 647                 os_free(buf);
 648                 buf = NULL;
 649         }
 650
 651         return buf;
 652 }
 653 #endif /* NO_CONFIG_WRITE */
 654
 655
 656 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
 657                                      struct wpa_ssid *ssid, int line,
 658                                      const char *value)
 659 {
 660         int val = 0, last, errors = 0;
 661         char *start, *end, *buf;
 662
 663         buf = os_strdup(value);
 664         if (buf == NULL)
 665                 return -1;
 666         start = buf;
 667
 668         while (*start != '\0') {
 669                 while (*start == ' ' || *start == '\t')
 670                         start++;
 671                 if (*start == '\0')
 672                         break;
 673                 end = start;
 674                 while (*end != ' ' && *end != '\t' && *end != '\0')
 675                         end++;
 676                 last = *end == '\0';
 677                 *end = '\0';
 678                 if (os_strcmp(start, "WPA-PSK") == 0)
 679                         val |= WPA_KEY_MGMT_PSK;
 680                 else if (os_strcmp(start, "WPA-EAP") == 0)
 681                         val |= WPA_KEY_MGMT_IEEE8021X;
 682                 else if (os_strcmp(start, "IEEE8021X") == 0)
 683                         val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
 684                 else if (os_strcmp(start, "NONE") == 0)
 685                         val |= WPA_KEY_MGMT_NONE;
 686                 else if (os_strcmp(start, "WPA-NONE") == 0)
 687                         val |= WPA_KEY_MGMT_WPA_NONE;
 688 #ifdef CONFIG_IEEE80211R
 689                 else if (os_strcmp(start, "FT-PSK") == 0)
 690                         val |= WPA_KEY_MGMT_FT_PSK;
 691                 else if (os_strcmp(start, "FT-EAP") == 0)
 692                         val |= WPA_KEY_MGMT_FT_IEEE8021X;
 693 #endif /* CONFIG_IEEE80211R */
 694 #ifdef CONFIG_IEEE80211W
 695                 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
 696                         val |= WPA_KEY_MGMT_PSK_SHA256;
 697                 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
 698                         val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
 699 #endif /* CONFIG_IEEE80211W */
 700 #ifdef CONFIG_WPS
 701                 else if (os_strcmp(start, "WPS") == 0)
 702                         val |= WPA_KEY_MGMT_WPS;
 703 #endif /* CONFIG_WPS */
 704 #ifdef CONFIG_SAE
 705                 else if (os_strcmp(start, "SAE") == 0)
 706                         val |= WPA_KEY_MGMT_SAE;
 707                 else if (os_strcmp(start, "FT-SAE") == 0)
 708                         val |= WPA_KEY_MGMT_FT_SAE;
 709 #endif /* CONFIG_SAE */
 710 #ifdef CONFIG_HS20
 711                 else if (os_strcmp(start, "OSEN") == 0)
 712                         val |= WPA_KEY_MGMT_OSEN;
 713 #endif /* CONFIG_HS20 */
 714 #ifdef CONFIG_SUITEB
 715                 else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
 716                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
 717 #endif /* CONFIG_SUITEB */
 718 #ifdef CONFIG_SUITEB192
 719                 else if (os_strcmp(start, "WPA-EAP-SUITE-B-192") == 0)
 720                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
 721 #endif /* CONFIG_SUITEB192 */
 722                 else {
 723                         wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
 724                                    line, start);
 725                         errors++;
 726                 }
 727
 728                 if (last)
 729                         break;
 730                 start = end + 1;
 731         }
 732         os_free(buf);
 733
 734         if (val == 0) {
 735                 wpa_printf(MSG_ERROR,
 736                            "Line %d: no key_mgmt values configured.", line);
 737                 errors++;
 738         }
 739
 740         if (!errors && ssid->key_mgmt == val)
 741                 return 1;
 742         wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
 743         ssid->key_mgmt = val;
 744         return errors ? -1 : 0;
 745 }
 746
 747
 748 #ifndef NO_CONFIG_WRITE
 749 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
 750                                         struct wpa_ssid *ssid)
 751 {
 752         char *buf, *pos, *end;
 753         int ret;
 754
 755         pos = buf = os_zalloc(100);
 756         if (buf == NULL)
 757                 return NULL;
 758         end = buf + 100;
 759
 760         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
 761                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
 762                                   pos == buf ? "" : " ");
 763                 if (os_snprintf_error(end - pos, ret)) {
 764                         end[-1] = '\0';
 765                         return buf;
 766                 }
 767                 pos += ret;
 768         }
 769
 770         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
 771                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
 772                                   pos == buf ? "" : " ");
 773                 if (os_snprintf_error(end - pos, ret)) {
 774                         end[-1] = '\0';
 775                         return buf;
 776                 }
 777                 pos += ret;
 778         }
 779
 780         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 781                 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
 782                                   pos == buf ? "" : " ");
 783                 if (os_snprintf_error(end - pos, ret)) {
 784                         end[-1] = '\0';
 785                         return buf;
 786                 }
 787                 pos += ret;
 788         }
 789
 790         if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
 791                 ret = os_snprintf(pos, end - pos, "%sNONE",
 792                                   pos == buf ? "" : " ");
 793                 if (os_snprintf_error(end - pos, ret)) {
 794                         end[-1] = '\0';
 795                         return buf;
 796                 }
 797                 pos += ret;
 798         }
 799
 800         if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
 801                 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
 802                                   pos == buf ? "" : " ");
 803                 if (os_snprintf_error(end - pos, ret)) {
 804                         end[-1] = '\0';
 805                         return buf;
 806                 }
 807                 pos += ret;
 808         }
 809
 810 #ifdef CONFIG_IEEE80211R
 811         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
 812                 ret = os_snprintf(pos, end - pos, "%sFT-PSK",
 813                                   pos == buf ? "" : " ");
 814                 if (os_snprintf_error(end - pos, ret)) {
 815                         end[-1] = '\0';
 816                         return buf;
 817                 }
 818                 pos += ret;
 819         }
 820
 821         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
 822                 ret = os_snprintf(pos, end - pos, "%sFT-EAP",
 823                                   pos == buf ? "" : " ");
 824                 if (os_snprintf_error(end - pos, ret)) {
 825                         end[-1] = '\0';
 826                         return buf;
 827                 }
 828                 pos += ret;
 829         }
 830 #endif /* CONFIG_IEEE80211R */
 831
 832 #ifdef CONFIG_IEEE80211W
 833         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
 834                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
 835                                   pos == buf ? "" : " ");
 836                 if (os_snprintf_error(end - pos, ret)) {
 837                         end[-1] = '\0';
 838                         return buf;
 839                 }
 840                 pos += ret;
 841         }
 842
 843         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
 844                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
 845                                   pos == buf ? "" : " ");
 846                 if (os_snprintf_error(end - pos, ret)) {
 847                         end[-1] = '\0';
 848                         return buf;
 849                 }
 850                 pos += ret;
 851         }
 852 #endif /* CONFIG_IEEE80211W */
 853
 854 #ifdef CONFIG_WPS
 855         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 856                 ret = os_snprintf(pos, end - pos, "%sWPS",
 857                                   pos == buf ? "" : " ");
 858                 if (os_snprintf_error(end - pos, ret)) {
 859                         end[-1] = '\0';
 860                         return buf;
 861                 }
 862                 pos += ret;
 863         }
 864 #endif /* CONFIG_WPS */
 865
 866 #ifdef CONFIG_SAE
 867         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 868                 ret = os_snprintf(pos, end - pos, "%sSAE",
 869                                   pos == buf ? "" : " ");
 870                 if (os_snprintf_error(end - pos, ret)) {
 871                         end[-1] = '\0';
 872                         return buf;
 873                 }
 874                 pos += ret;
 875         }
 876
 877         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
 878                 ret = os_snprintf(pos, end - pos, "%sFT-SAE",
 879                                   pos == buf ? "" : " ");
 880                 if (os_snprintf_error(end - pos, ret)) {
 881                         end[-1] = '\0';
 882                         return buf;
 883                 }
 884                 pos += ret;
 885         }
 886 #endif /* CONFIG_SAE */
 887
 888 #ifdef CONFIG_HS20
 889         if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
 890                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 891                                   pos == buf ? "" : " ");
 892                 if (os_snprintf_error(end - pos, ret)) {
 893                         end[-1] = '\0';
 894                         return buf;
 895                 }
 896                 pos += ret;
 897         }
 898 #endif /* CONFIG_HS20 */
 899
 900 #ifdef CONFIG_SUITEB
 901         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
 902                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
 903                                   pos == buf ? "" : " ");
 904                 if (os_snprintf_error(end - pos, ret)) {
 905                         end[-1] = '\0';
 906                         return buf;
 907                 }
 908                 pos += ret;
 909         }
 910 #endif /* CONFIG_SUITEB */
 911
 912 #ifdef CONFIG_SUITEB192
 913         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
 914                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B-192",
 915                                   pos == buf ? "" : " ");
 916                 if (os_snprintf_error(end - pos, ret)) {
 917                         end[-1] = '\0';
 918                         return buf;
 919                 }
 920                 pos += ret;
 921         }
 922 #endif /* CONFIG_SUITEB192 */
 923
 924         if (pos == buf) {
 925                 os_free(buf);
 926                 buf = NULL;
 927         }
 928
 929         return buf;
 930 }
 931 #endif /* NO_CONFIG_WRITE */
 932
 933
 934 static int wpa_config_parse_cipher(int line, const char *value)
 935 {
 936 #ifdef CONFIG_NO_WPA
 937         return -1;
 938 #else /* CONFIG_NO_WPA */
 939         int val = wpa_parse_cipher(value);
 940         if (val < 0) {
 941                 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
 942                            line, value);
 943                 return -1;
 944         }
 945         if (val == 0) {
 946                 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
 947                            line);
 948                 return -1;
 949         }
 950         return val;
 951 #endif /* CONFIG_NO_WPA */
 952 }
 953
 954
 955 #ifndef NO_CONFIG_WRITE
 956 static char * wpa_config_write_cipher(int cipher)
 957 {
 958 #ifdef CONFIG_NO_WPA
 959         return NULL;
 960 #else /* CONFIG_NO_WPA */
 961         char *buf = os_zalloc(50);
 962         if (buf == NULL)
 963                 return NULL;
 964
 965         if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
 966                 os_free(buf);
 967                 return NULL;
 968         }
 969
 970         return buf;
 971 #endif /* CONFIG_NO_WPA */
 972 }
 973 #endif /* NO_CONFIG_WRITE */
 974
 975
 976 static int wpa_config_parse_pairwise(const struct parse_data *data,
 977                                      struct wpa_ssid *ssid, int line,
 978                                      const char *value)
 979 {
 980         int val;
 981         val = wpa_config_parse_cipher(line, value);
 982         if (val == -1)
 983                 return -1;
 984         if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
 985                 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
 986                            "(0x%x).", line, val);
 987                 return -1;
 988         }
 989
 990         if (ssid->pairwise_cipher == val)
 991                 return 1;
 992         wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
 993         ssid->pairwise_cipher = val;
 994         return 0;
 995 }
 996
 997
 998 #ifndef NO_CONFIG_WRITE
 999 static char * wpa_config_write_pairwise(const struct parse_data *data,
1000                                         struct wpa_ssid *ssid)
1001 {
1002         return wpa_config_write_cipher(ssid->pairwise_cipher);
1003 }
1004 #endif /* NO_CONFIG_WRITE */
1005
1006
1007 static int wpa_config_parse_group(const struct parse_data *data,
1008                                   struct wpa_ssid *ssid, int line,
1009                                   const char *value)
1010 {
1011         int val;
1012         val = wpa_config_parse_cipher(line, value);
1013         if (val == -1)
1014                 return -1;
1015
1016         /*
1017          * Backwards compatibility - filter out WEP ciphers that were previously
1018          * allowed.
1019          */
1020         val &= ~(WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40);
1021
1022         if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
1023                 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
1024                            "(0x%x).", line, val);
1025                 return -1;
1026         }
1027
1028         if (ssid->group_cipher == val)
1029                 return 1;
1030         wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
1031         ssid->group_cipher = val;
1032         return 0;
1033 }
1034
1035
1036 #ifndef NO_CONFIG_WRITE
1037 static char * wpa_config_write_group(const struct parse_data *data,
1038                                      struct wpa_ssid *ssid)
1039 {
1040         return wpa_config_write_cipher(ssid->group_cipher);
1041 }
1042 #endif /* NO_CONFIG_WRITE */
1043
1044
1045 static int wpa_config_parse_auth_alg(const struct parse_data *data,
1046                                      struct wpa_ssid *ssid, int line,
1047                                      const char *value)
1048 {
1049         int val = 0, last, errors = 0;
1050         char *start, *end, *buf;
1051
1052         buf = os_strdup(value);
1053         if (buf == NULL)
1054                 return -1;
1055         start = buf;
1056
1057         while (*start != '\0') {
1058                 while (*start == ' ' || *start == '\t')
1059                         start++;
1060                 if (*start == '\0')
1061                         break;
1062                 end = start;
1063                 while (*end != ' ' && *end != '\t' && *end != '\0')
1064                         end++;
1065                 last = *end == '\0';
1066                 *end = '\0';
1067                 if (os_strcmp(start, "OPEN") == 0)
1068                         val |= WPA_AUTH_ALG_OPEN;
1069                 else if (os_strcmp(start, "SHARED") == 0)
1070                         val |= WPA_AUTH_ALG_SHARED;
1071                 else if (os_strcmp(start, "LEAP") == 0)
1072                         val |= WPA_AUTH_ALG_LEAP;
1073                 else {
1074                         wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1075                                    line, start);
1076                         errors++;
1077                 }
1078
1079                 if (last)
1080                         break;
1081                 start = end + 1;
1082         }
1083         os_free(buf);
1084
1085         if (val == 0) {
1086                 wpa_printf(MSG_ERROR,
1087                            "Line %d: no auth_alg values configured.", line);
1088                 errors++;
1089         }
1090
1091         if (!errors && ssid->auth_alg == val)
1092                 return 1;
1093         wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1094         ssid->auth_alg = val;
1095         return errors ? -1 : 0;
1096 }
1097
1098
1099 #ifndef NO_CONFIG_WRITE
1100 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1101                                         struct wpa_ssid *ssid)
1102 {
1103         char *buf, *pos, *end;
1104         int ret;
1105
1106         pos = buf = os_zalloc(30);
1107         if (buf == NULL)
1108                 return NULL;
1109         end = buf + 30;
1110
1111         if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1112                 ret = os_snprintf(pos, end - pos, "%sOPEN",
1113                                   pos == buf ? "" : " ");
1114                 if (os_snprintf_error(end - pos, ret)) {
1115                         end[-1] = '\0';
1116                         return buf;
1117                 }
1118                 pos += ret;
1119         }
1120
1121         if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1122                 ret = os_snprintf(pos, end - pos, "%sSHARED",
1123                                   pos == buf ? "" : " ");
1124                 if (os_snprintf_error(end - pos, ret)) {
1125                         end[-1] = '\0';
1126                         return buf;
1127                 }
1128                 pos += ret;
1129         }
1130
1131         if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1132                 ret = os_snprintf(pos, end - pos, "%sLEAP",
1133                                   pos == buf ? "" : " ");
1134                 if (os_snprintf_error(end - pos, ret)) {
1135                         end[-1] = '\0';
1136                         return buf;
1137                 }
1138                 pos += ret;
1139         }
1140
1141         if (pos == buf) {
1142                 os_free(buf);
1143                 buf = NULL;
1144         }
1145
1146         return buf;
1147 }
1148 #endif /* NO_CONFIG_WRITE */
1149
1150
1151 static int * wpa_config_parse_int_array(const char *value)
1152 {
1153         int *freqs;
1154         size_t used, len;
1155         const char *pos;
1156
1157         used = 0;
1158         len = 10;
1159         freqs = os_calloc(len + 1, sizeof(int));
1160         if (freqs == NULL)
1161                 return NULL;
1162
1163         pos = value;
1164         while (pos) {
1165                 while (*pos == ' ')
1166                         pos++;
1167                 if (used == len) {
1168                         int *n;
1169                         size_t i;
1170                         n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1171                         if (n == NULL) {
1172                                 os_free(freqs);
1173                                 return NULL;
1174                         }
1175                         for (i = len; i <= len * 2; i++)
1176                                 n[i] = 0;
1177                         freqs = n;
1178                         len *= 2;
1179                 }
1180
1181                 freqs[used] = atoi(pos);
1182                 if (freqs[used] == 0)
1183                         break;
1184                 used++;
1185                 pos = os_strchr(pos + 1, ' ');
1186         }
1187
1188         return freqs;
1189 }
1190
1191
1192 static int wpa_config_parse_scan_freq(const struct parse_data *data,
1193                                       struct wpa_ssid *ssid, int line,
1194                                       const char *value)
1195 {
1196         int *freqs;
1197
1198         freqs = wpa_config_parse_int_array(value);
1199         if (freqs == NULL)
1200                 return -1;
1201         if (freqs[0] == 0) {
1202                 os_free(freqs);
1203                 freqs = NULL;
1204         }
1205         os_free(ssid->scan_freq);
1206         ssid->scan_freq = freqs;
1207
1208         return 0;
1209 }
1210
1211
1212 static int wpa_config_parse_freq_list(const struct parse_data *data,
1213                                       struct wpa_ssid *ssid, int line,
1214                                       const char *value)
1215 {
1216         int *freqs;
1217
1218         freqs = wpa_config_parse_int_array(value);
1219         if (freqs == NULL)
1220                 return -1;
1221         if (freqs[0] == 0) {
1222                 os_free(freqs);
1223                 freqs = NULL;
1224         }
1225         os_free(ssid->freq_list);
1226         ssid->freq_list = freqs;
1227
1228         return 0;
1229 }
1230
1231
1232 #ifndef NO_CONFIG_WRITE
1233 static char * wpa_config_write_freqs(const struct parse_data *data,
1234                                      const int *freqs)
1235 {
1236         char *buf, *pos, *end;
1237         int i, ret;
1238         size_t count;
1239
1240         if (freqs == NULL)
1241                 return NULL;
1242
1243         count = 0;
1244         for (i = 0; freqs[i]; i++)
1245                 count++;
1246
1247         pos = buf = os_zalloc(10 * count + 1);
1248         if (buf == NULL)
1249                 return NULL;
1250         end = buf + 10 * count + 1;
1251
1252         for (i = 0; freqs[i]; i++) {
1253                 ret = os_snprintf(pos, end - pos, "%s%u",
1254                                   i == 0 ? "" : " ", freqs[i]);
1255                 if (os_snprintf_error(end - pos, ret)) {
1256                         end[-1] = '\0';
1257                         return buf;
1258                 }
1259                 pos += ret;
1260         }
1261
1262         return buf;
1263 }
1264
1265
1266 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1267                                          struct wpa_ssid *ssid)
1268 {
1269         return wpa_config_write_freqs(data, ssid->scan_freq);
1270 }
1271
1272
1273 static char * wpa_config_write_freq_list(const struct parse_data *data,
1274                                          struct wpa_ssid *ssid)
1275 {
1276         return wpa_config_write_freqs(data, ssid->freq_list);
1277 }
1278 #endif /* NO_CONFIG_WRITE */
1279
1280
1281 #ifdef IEEE8021X_EAPOL
1282 static int wpa_config_parse_eap(const struct parse_data *data,
1283                                 struct wpa_ssid *ssid, int line,
1284                                 const char *value)
1285 {
1286         int last, errors = 0;
1287         char *start, *end, *buf;
1288         struct eap_method_type *methods = NULL, *tmp;
1289         size_t num_methods = 0;
1290
1291         buf = os_strdup(value);
1292         if (buf == NULL)
1293                 return -1;
1294         start = buf;
1295
1296         while (*start != '\0') {
1297                 while (*start == ' ' || *start == '\t')
1298                         start++;
1299                 if (*start == '\0')
1300                         break;
1301                 end = start;
1302                 while (*end != ' ' && *end != '\t' && *end != '\0')
1303                         end++;
1304                 last = *end == '\0';
1305                 *end = '\0';
1306                 tmp = methods;
1307                 methods = os_realloc_array(methods, num_methods + 1,
1308                                            sizeof(*methods));
1309                 if (methods == NULL) {
1310                         os_free(tmp);
1311                         os_free(buf);
1312                         return -1;
1313                 }
1314                 methods[num_methods].method = eap_peer_get_type(
1315                         start, &methods[num_methods].vendor);
1316                 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1317                     methods[num_methods].method == EAP_TYPE_NONE) {
1318                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1319                                    "'%s'", line, start);
1320                         wpa_printf(MSG_ERROR, "You may need to add support for"
1321                                    " this EAP method during wpa_supplicant\n"
1322                                    "build time configuration.\n"
1323                                    "See README for more information.");
1324                         errors++;
1325                 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1326                            methods[num_methods].method == EAP_TYPE_LEAP)
1327                         ssid->leap++;
1328                 else
1329                         ssid->non_leap++;
1330                 num_methods++;
1331                 if (last)
1332                         break;
1333                 start = end + 1;
1334         }
1335         os_free(buf);
1336
1337         tmp = methods;
1338         methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1339         if (methods == NULL) {
1340                 os_free(tmp);
1341                 return -1;
1342         }
1343         methods[num_methods].vendor = EAP_VENDOR_IETF;
1344         methods[num_methods].method = EAP_TYPE_NONE;
1345         num_methods++;
1346
1347         if (!errors && ssid->eap.eap_methods) {
1348                 struct eap_method_type *prev_m;
1349                 size_t i, j, prev_methods, match = 0;
1350
1351                 prev_m = ssid->eap.eap_methods;
1352                 for (i = 0; prev_m[i].vendor != EAP_VENDOR_IETF ||
1353                              prev_m[i].method != EAP_TYPE_NONE; i++) {
1354                         /* Count the methods */
1355                 }
1356                 prev_methods = i + 1;
1357
1358                 for (i = 0; prev_methods == num_methods && i < prev_methods;
1359                      i++) {
1360                         for (j = 0; j < num_methods; j++) {
1361                                 if (prev_m[i].vendor == methods[j].vendor &&
1362                                     prev_m[i].method == methods[j].method) {
1363                                         match++;
1364                                         break;
1365                                 }
1366                         }
1367                 }
1368                 if (match == num_methods) {
1369                         os_free(methods);
1370                         return 1;
1371                 }
1372         }
1373         wpa_hexdump(MSG_MSGDUMP, "eap methods",
1374                     (u8 *) methods, num_methods * sizeof(*methods));
1375         os_free(ssid->eap.eap_methods);
1376         ssid->eap.eap_methods = methods;
1377         return errors ? -1 : 0;
1378 }
1379
1380
1381 #ifndef NO_CONFIG_WRITE
1382 static char * wpa_config_write_eap(const struct parse_data *data,
1383                                    struct wpa_ssid *ssid)
1384 {
1385         int i, ret;
1386         char *buf, *pos, *end;
1387         const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1388         const char *name;
1389
1390         if (eap_methods == NULL)
1391                 return NULL;
1392
1393         pos = buf = os_zalloc(100);
1394         if (buf == NULL)
1395                 return NULL;
1396         end = buf + 100;
1397
1398         for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1399                      eap_methods[i].method != EAP_TYPE_NONE; i++) {
1400                 name = eap_get_name(eap_methods[i].vendor,
1401                                     eap_methods[i].method);
1402                 if (name) {
1403                         ret = os_snprintf(pos, end - pos, "%s%s",
1404                                           pos == buf ? "" : " ", name);
1405                         if (os_snprintf_error(end - pos, ret))
1406                                 break;
1407                         pos += ret;
1408                 }
1409         }
1410
1411         end[-1] = '\0';
1412
1413         return buf;
1414 }
1415 #endif /* NO_CONFIG_WRITE */
1416
1417
1418 static int wpa_config_parse_password(const struct parse_data *data,
1419                                      struct wpa_ssid *ssid, int line,
1420                                      const char *value)
1421 {
1422         u8 *hash;
1423
1424         if (os_strcmp(value, "NULL") == 0) {
1425                 if (!ssid->eap.password)
1426                         return 1; /* Already unset */
1427                 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1428                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1429                 ssid->eap.password = NULL;
1430                 ssid->eap.password_len = 0;
1431                 return 0;
1432         }
1433
1434 #ifdef CONFIG_EXT_PASSWORD
1435         if (os_strncmp(value, "ext:", 4) == 0) {
1436                 char *name = os_strdup(value + 4);
1437                 if (name == NULL)
1438                         return -1;
1439                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1440                 ssid->eap.password = (u8 *) name;
1441                 ssid->eap.password_len = os_strlen(name);
1442                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1443                 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1444                 return 0;
1445         }
1446 #endif /* CONFIG_EXT_PASSWORD */
1447
1448         if (os_strncmp(value, "hash:", 5) != 0) {
1449                 char *tmp;
1450                 size_t res_len;
1451
1452                 tmp = wpa_config_parse_string(value, &res_len);
1453                 if (tmp == NULL) {
1454                         wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1455                                    "password.", line);
1456                         return -1;
1457                 }
1458                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1459                                       (u8 *) tmp, res_len);
1460
1461                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1462                 ssid->eap.password = (u8 *) tmp;
1463                 ssid->eap.password_len = res_len;
1464                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1465                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1466
1467                 return 0;
1468         }
1469
1470
1471         /* NtPasswordHash: hash:<32 hex digits> */
1472         if (os_strlen(value + 5) != 2 * 16) {
1473                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1474                            "(expected 32 hex digits)", line);
1475                 return -1;
1476         }
1477
1478         hash = os_malloc(16);
1479         if (hash == NULL)
1480                 return -1;
1481
1482         if (hexstr2bin(value + 5, hash, 16)) {
1483                 os_free(hash);
1484                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1485                 return -1;
1486         }
1487
1488         wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1489
1490         if (ssid->eap.password && ssid->eap.password_len == 16 &&
1491             os_memcmp(ssid->eap.password, hash, 16) == 0 &&
1492             (ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1493                 bin_clear_free(hash, 16);
1494                 return 1;
1495         }
1496         bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1497         ssid->eap.password = hash;
1498         ssid->eap.password_len = 16;
1499         ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1500         ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1501
1502         return 0;
1503 }
1504
1505
1506 #ifndef NO_CONFIG_WRITE
1507 static char * wpa_config_write_password(const struct parse_data *data,
1508                                         struct wpa_ssid *ssid)
1509 {
1510         char *buf;
1511
1512         if (ssid->eap.password == NULL)
1513                 return NULL;
1514
1515 #ifdef CONFIG_EXT_PASSWORD
1516         if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1517                 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1518                 if (buf == NULL)
1519                         return NULL;
1520                 os_memcpy(buf, "ext:", 4);
1521                 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1522                 return buf;
1523         }
1524 #endif /* CONFIG_EXT_PASSWORD */
1525
1526         if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1527                 return wpa_config_write_string(
1528                         ssid->eap.password, ssid->eap.password_len);
1529         }
1530
1531         buf = os_malloc(5 + 32 + 1);
1532         if (buf == NULL)
1533                 return NULL;
1534
1535         os_memcpy(buf, "hash:", 5);
1536         wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1537
1538         return buf;
1539 }
1540 #endif /* NO_CONFIG_WRITE */
1541 #endif /* IEEE8021X_EAPOL */
1542
1543
1544 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1545                                     const char *value, int idx)
1546 {
1547         char *buf, title[20];
1548         int res;
1549
1550         buf = wpa_config_parse_string(value, len);
1551         if (buf == NULL) {
1552                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1553                            line, idx, value);
1554                 return -1;
1555         }
1556         if (*len > MAX_WEP_KEY_LEN) {
1557                 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1558                            line, idx, value);
1559                 os_free(buf);
1560                 return -1;
1561         }
1562         if (*len && *len != 5 && *len != 13 && *len != 16) {
1563                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1564                            "this network block will be ignored",
1565                            line, (unsigned int) *len);
1566         }
1567         os_memcpy(key, buf, *len);
1568         str_clear_free(buf);
1569         res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1570         if (!os_snprintf_error(sizeof(title), res))
1571                 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1572         return 0;
1573 }
1574
1575
1576 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1577                                      struct wpa_ssid *ssid, int line,
1578                                      const char *value)
1579 {
1580         return wpa_config_parse_wep_key(ssid->wep_key[0],
1581                                         &ssid->wep_key_len[0], line,
1582                                         value, 0);
1583 }
1584
1585
1586 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1587                                      struct wpa_ssid *ssid, int line,
1588                                      const char *value)
1589 {
1590         return wpa_config_parse_wep_key(ssid->wep_key[1],
1591                                         &ssid->wep_key_len[1], line,
1592                                         value, 1);
1593 }
1594
1595
1596 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1597                                      struct wpa_ssid *ssid, int line,
1598                                      const char *value)
1599 {
1600         return wpa_config_parse_wep_key(ssid->wep_key[2],
1601                                         &ssid->wep_key_len[2], line,
1602                                         value, 2);
1603 }
1604
1605
1606 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1607                                      struct wpa_ssid *ssid, int line,
1608                                      const char *value)
1609 {
1610         return wpa_config_parse_wep_key(ssid->wep_key[3],
1611                                         &ssid->wep_key_len[3], line,
1612                                         value, 3);
1613 }
1614
1615
1616 #ifndef NO_CONFIG_WRITE
1617 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1618 {
1619         if (ssid->wep_key_len[idx] == 0)
1620                 return NULL;
1621         return wpa_config_write_string(ssid->wep_key[idx],
1622                                        ssid->wep_key_len[idx]);
1623 }
1624
1625
1626 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1627                                         struct wpa_ssid *ssid)
1628 {
1629         return wpa_config_write_wep_key(ssid, 0);
1630 }
1631
1632
1633 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1634                                         struct wpa_ssid *ssid)
1635 {
1636         return wpa_config_write_wep_key(ssid, 1);
1637 }
1638
1639
1640 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1641                                         struct wpa_ssid *ssid)
1642 {
1643         return wpa_config_write_wep_key(ssid, 2);
1644 }
1645
1646
1647 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1648                                         struct wpa_ssid *ssid)
1649 {
1650         return wpa_config_write_wep_key(ssid, 3);
1651 }
1652 #endif /* NO_CONFIG_WRITE */
1653
1654
1655 #ifdef CONFIG_P2P
1656
1657 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1658                                             struct wpa_ssid *ssid, int line,
1659                                             const char *value)
1660 {
1661         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1662             os_strcmp(value, "any") == 0) {
1663                 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1664                 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1665                 return 0;
1666         }
1667         if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1668                 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1669                            line, value);
1670                 return -1;
1671         }
1672         ssid->bssid_set = 1;
1673         wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1674                    MAC2STR(ssid->go_p2p_dev_addr));
1675         return 0;
1676 }
1677
1678
1679 #ifndef NO_CONFIG_WRITE
1680 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1681                                                struct wpa_ssid *ssid)
1682 {
1683         char *value;
1684         int res;
1685
1686         if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1687                 return NULL;
1688
1689         value = os_malloc(20);
1690         if (value == NULL)
1691                 return NULL;
1692         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1693         if (os_snprintf_error(20, res)) {
1694                 os_free(value);
1695                 return NULL;
1696         }
1697         value[20 - 1] = '\0';
1698         return value;
1699 }
1700 #endif /* NO_CONFIG_WRITE */
1701
1702
1703 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1704                                             struct wpa_ssid *ssid, int line,
1705                                             const char *value)
1706 {
1707         return wpa_config_parse_addr_list(data, line, value,
1708                                           &ssid->p2p_client_list,
1709                                           &ssid->num_p2p_clients,
1710                                           "p2p_client_list", 0, 0);
1711 }
1712
1713
1714 #ifndef NO_CONFIG_WRITE
1715 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1716                                                struct wpa_ssid *ssid)
1717 {
1718         return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1719                                           ssid->num_p2p_clients,
1720                                           "p2p_client_list");
1721 }
1722 #endif /* NO_CONFIG_WRITE */
1723
1724
1725 static int wpa_config_parse_psk_list(const struct parse_data *data,
1726                                      struct wpa_ssid *ssid, int line,
1727                                      const char *value)
1728 {
1729         struct psk_list_entry *p;
1730         const char *pos;
1731
1732         p = os_zalloc(sizeof(*p));
1733         if (p == NULL)
1734                 return -1;
1735
1736         pos = value;
1737         if (os_strncmp(pos, "P2P-", 4) == 0) {
1738                 p->p2p = 1;
1739                 pos += 4;
1740         }
1741
1742         if (hwaddr_aton(pos, p->addr)) {
1743                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1744                            line, pos);
1745                 os_free(p);
1746                 return -1;
1747         }
1748         pos += 17;
1749         if (*pos != '-') {
1750                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1751                            line, pos);
1752                 os_free(p);
1753                 return -1;
1754         }
1755         pos++;
1756
1757         if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1758                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1759                            line, pos);
1760                 os_free(p);
1761                 return -1;
1762         }
1763
1764         dl_list_add(&ssid->psk_list, &p->list);
1765
1766         return 0;
1767 }
1768
1769
1770 #ifndef NO_CONFIG_WRITE
1771 static char * wpa_config_write_psk_list(const struct parse_data *data,
1772                                         struct wpa_ssid *ssid)
1773 {
1774         return NULL;
1775 }
1776 #endif /* NO_CONFIG_WRITE */
1777
1778 #endif /* CONFIG_P2P */
1779
1780
1781 #ifdef CONFIG_MESH
1782
1783 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1784                                              struct wpa_ssid *ssid, int line,
1785                                              const char *value)
1786 {
1787         int *rates = wpa_config_parse_int_array(value);
1788
1789         if (rates == NULL) {
1790                 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1791                            line, value);
1792                 return -1;
1793         }
1794         if (rates[0] == 0) {
1795                 os_free(rates);
1796                 rates = NULL;
1797         }
1798
1799         os_free(ssid->mesh_basic_rates);
1800         ssid->mesh_basic_rates = rates;
1801
1802         return 0;
1803 }
1804
1805
1806 #ifndef NO_CONFIG_WRITE
1807
1808 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1809                                                 struct wpa_ssid *ssid)
1810 {
1811         return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1812 }
1813
1814 #endif /* NO_CONFIG_WRITE */
1815
1816 #endif /* CONFIG_MESH */
1817
1818
1819 /* Helper macros for network block parser */
1820
1821 #ifdef OFFSET
1822 #undef OFFSET
1823 #endif /* OFFSET */
1824 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1825 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1826
1827 /* STR: Define a string variable for an ASCII string; f = field name */
1828 #ifdef NO_CONFIG_WRITE
1829 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1830 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1831 #else /* NO_CONFIG_WRITE */
1832 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1833 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1834 #endif /* NO_CONFIG_WRITE */
1835 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1836 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1837 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1838 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1839
1840 /* STR_LEN: Define a string variable with a separate variable for storing the
1841  * data length. Unlike STR(), this can be used to store arbitrary binary data
1842  * (i.e., even nul termination character). */
1843 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1844 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1845 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1846 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1847 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1848
1849 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1850  * explicitly specified. */
1851 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1852 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1853 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1854
1855 #ifdef NO_CONFIG_WRITE
1856 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1857 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1858 #else /* NO_CONFIG_WRITE */
1859 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1860         OFFSET(f), (void *) 0
1861 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1862         OFFSET(eap.f), (void *) 0
1863 #endif /* NO_CONFIG_WRITE */
1864
1865 /* INT: Define an integer variable */
1866 #define INT(f) _INT(f), NULL, NULL, 0
1867 #define INTe(f) _INTe(f), NULL, NULL, 0
1868
1869 /* INT_RANGE: Define an integer variable with allowed value range */
1870 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1871
1872 /* FUNC: Define a configuration variable that uses a custom function for
1873  * parsing and writing the value. */
1874 #ifdef NO_CONFIG_WRITE
1875 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1876 #else /* NO_CONFIG_WRITE */
1877 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1878         NULL, NULL, NULL, NULL
1879 #endif /* NO_CONFIG_WRITE */
1880 #define FUNC(f) _FUNC(f), 0
1881 #define FUNC_KEY(f) _FUNC(f), 1
1882
1883 /*
1884  * Table of network configuration variables. This table is used to parse each
1885  * network configuration variable, e.g., each line in wpa_supplicant.conf file
1886  * that is inside a network block.
1887  *
1888  * This table is generated using the helper macros defined above and with
1889  * generous help from the C pre-processor. The field name is stored as a string
1890  * into .name and for STR and INT types, the offset of the target buffer within
1891  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1892  * offset to the field containing the length of the configuration variable.
1893  * .param3 and .param4 can be used to mark the allowed range (length for STR
1894  * and value for INT).
1895  *
1896  * For each configuration line in wpa_supplicant.conf, the parser goes through
1897  * this table and select the entry that matches with the field name. The parser
1898  * function (.parser) is then called to parse the actual value of the field.
1899  *
1900  * This kind of mechanism makes it easy to add new configuration parameters,
1901  * since only one line needs to be added into this table and into the
1902  * struct wpa_ssid definition if the new variable is either a string or
1903  * integer. More complex types will need to use their own parser and writer
1904  * functions.
1905  */
1906 static const struct parse_data ssid_fields[] = {
1907         { STR_RANGE(ssid, 0, SSID_MAX_LEN) },
1908         { INT_RANGE(scan_ssid, 0, 1) },
1909         { FUNC(bssid) },
1910         { FUNC(bssid_blacklist) },
1911         { FUNC(bssid_whitelist) },
1912         { FUNC_KEY(psk) },
1913         { INT(mem_only_psk) },
1914         { FUNC(proto) },
1915         { FUNC(key_mgmt) },
1916         { INT(bg_scan_period) },
1917         { FUNC(pairwise) },
1918         { FUNC(group) },
1919         { FUNC(auth_alg) },
1920         { FUNC(scan_freq) },
1921         { FUNC(freq_list) },
1922         { INT_RANGE(max_oper_chwidth, VHT_CHANWIDTH_USE_HT,
1923                     VHT_CHANWIDTH_80P80MHZ) },
1924 #ifdef IEEE8021X_EAPOL
1925         { FUNC(eap) },
1926         { STR_LENe(identity) },
1927         { STR_LENe(anonymous_identity) },
1928         { FUNC_KEY(password) },
1929         { STRe(ca_cert) },
1930         { STRe(ca_path) },
1931         { STRe(client_cert) },
1932         { STRe(private_key) },
1933         { STR_KEYe(private_key_passwd) },
1934         { STRe(dh_file) },
1935         { STRe(subject_match) },
1936         { STRe(altsubject_match) },
1937         { STRe(domain_suffix_match) },
1938         { STRe(domain_match) },
1939         { STRe(ca_cert2) },
1940         { STRe(ca_path2) },
1941         { STRe(client_cert2) },
1942         { STRe(private_key2) },
1943         { STR_KEYe(private_key2_passwd) },
1944         { STRe(dh_file2) },
1945         { STRe(subject_match2) },
1946         { STRe(altsubject_match2) },
1947         { STRe(domain_suffix_match2) },
1948         { STRe(domain_match2) },
1949         { STRe(phase1) },
1950         { STRe(phase2) },
1951         { STRe(pcsc) },
1952         { STR_KEYe(pin) },
1953         { STRe(engine_id) },
1954         { STRe(key_id) },
1955         { STRe(cert_id) },
1956         { STRe(ca_cert_id) },
1957         { STR_KEYe(pin2) },
1958         { STRe(engine2_id) },
1959         { STRe(key2_id) },
1960         { STRe(cert2_id) },
1961         { STRe(ca_cert2_id) },
1962         { INTe(engine) },
1963         { INTe(engine2) },
1964         { INT(eapol_flags) },
1965         { INTe(sim_num) },
1966         { STRe(openssl_ciphers) },
1967         { INTe(erp) },
1968 #endif /* IEEE8021X_EAPOL */
1969         { FUNC_KEY(wep_key0) },
1970         { FUNC_KEY(wep_key1) },
1971         { FUNC_KEY(wep_key2) },
1972         { FUNC_KEY(wep_key3) },
1973         { INT(wep_tx_keyidx) },
1974         { INT(priority) },
1975 #ifdef IEEE8021X_EAPOL
1976         { INT(eap_workaround) },
1977         { STRe(pac_file) },
1978         { INTe(fragment_size) },
1979         { INTe(ocsp) },
1980 #endif /* IEEE8021X_EAPOL */
1981 #ifdef CONFIG_MESH
1982         { INT_RANGE(mode, 0, 5) },
1983         { INT_RANGE(no_auto_peer, 0, 1) },
1984 #else /* CONFIG_MESH */
1985         { INT_RANGE(mode, 0, 4) },
1986 #endif /* CONFIG_MESH */
1987         { INT_RANGE(proactive_key_caching, 0, 1) },
1988         { INT_RANGE(disabled, 0, 2) },
1989         { STR(id_str) },
1990 #ifdef CONFIG_IEEE80211W
1991         { INT_RANGE(ieee80211w, 0, 2) },
1992 #endif /* CONFIG_IEEE80211W */
1993         { INT_RANGE(peerkey, 0, 1) },
1994         { INT_RANGE(mixed_cell, 0, 1) },
1995         { INT_RANGE(frequency, 0, 65000) },
1996         { INT_RANGE(fixed_freq, 0, 1) },
1997 #ifdef CONFIG_ACS
1998         { INT_RANGE(acs, 0, 1) },
1999 #endif /* CONFIG_ACS */
2000 #ifdef CONFIG_MESH
2001         { FUNC(mesh_basic_rates) },
2002         { INT(dot11MeshMaxRetries) },
2003         { INT(dot11MeshRetryTimeout) },
2004         { INT(dot11MeshConfirmTimeout) },
2005         { INT(dot11MeshHoldingTimeout) },
2006 #endif /* CONFIG_MESH */
2007         { INT(wpa_ptk_rekey) },
2008         { STR(bgscan) },
2009         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
2010 #ifdef CONFIG_P2P
2011         { FUNC(go_p2p_dev_addr) },
2012         { FUNC(p2p_client_list) },
2013         { FUNC(psk_list) },
2014 #endif /* CONFIG_P2P */
2015 #ifdef CONFIG_HT_OVERRIDES
2016         { INT_RANGE(disable_ht, 0, 1) },
2017         { INT_RANGE(disable_ht40, -1, 1) },
2018         { INT_RANGE(disable_sgi, 0, 1) },
2019         { INT_RANGE(disable_ldpc, 0, 1) },
2020         { INT_RANGE(ht40_intolerant, 0, 1) },
2021         { INT_RANGE(disable_max_amsdu, -1, 1) },
2022         { INT_RANGE(ampdu_factor, -1, 3) },
2023         { INT_RANGE(ampdu_density, -1, 7) },
2024         { STR(ht_mcs) },
2025 #endif /* CONFIG_HT_OVERRIDES */
2026 #ifdef CONFIG_VHT_OVERRIDES
2027         { INT_RANGE(disable_vht, 0, 1) },
2028         { INT(vht_capa) },
2029         { INT(vht_capa_mask) },
2030         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
2031         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
2032         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
2033         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
2034         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
2035         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
2036         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
2037         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
2038         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
2039         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
2040         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
2041         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
2042         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
2043         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
2044         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
2045         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
2046 #endif /* CONFIG_VHT_OVERRIDES */
2047         { INT(ap_max_inactivity) },
2048         { INT(dtim_period) },
2049         { INT(beacon_int) },
2050 #ifdef CONFIG_MACSEC
2051         { INT_RANGE(macsec_policy, 0, 1) },
2052 #endif /* CONFIG_MACSEC */
2053 #ifdef CONFIG_HS20
2054         { INT(update_identifier) },
2055 #endif /* CONFIG_HS20 */
2056         { INT_RANGE(mac_addr, 0, 2) },
2057         { INT_RANGE(pbss, 0, 2) },
2058         { INT_RANGE(wps_disabled, 0, 1) },
2059 };
2060
2061 #undef OFFSET
2062 #undef _STR
2063 #undef STR
2064 #undef STR_KEY
2065 #undef _STR_LEN
2066 #undef STR_LEN
2067 #undef STR_LEN_KEY
2068 #undef _STR_RANGE
2069 #undef STR_RANGE
2070 #undef STR_RANGE_KEY
2071 #undef _INT
2072 #undef INT
2073 #undef INT_RANGE
2074 #undef _FUNC
2075 #undef FUNC
2076 #undef FUNC_KEY
2077 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
2078
2079
2080 /**
2081  * wpa_config_add_prio_network - Add a network to priority lists
2082  * @config: Configuration data from wpa_config_read()
2083  * @ssid: Pointer to the network configuration to be added to the list
2084  * Returns: 0 on success, -1 on failure
2085  *
2086  * This function is used to add a network block to the priority list of
2087  * networks. This must be called for each network when reading in the full
2088  * configuration. In addition, this can be used indirectly when updating
2089  * priorities by calling wpa_config_update_prio_list().
2090  */
2091 int wpa_config_add_prio_network(struct wpa_config *config,
2092                                 struct wpa_ssid *ssid)
2093 {
2094         int prio;
2095         struct wpa_ssid *prev, **nlist;
2096
2097         /*
2098          * Add to an existing priority list if one is available for the
2099          * configured priority level for this network.
2100          */
2101         for (prio = 0; prio < config->num_prio; prio++) {
2102                 prev = config->pssid[prio];
2103                 if (prev->priority == ssid->priority) {
2104                         while (prev->pnext)
2105                                 prev = prev->pnext;
2106                         prev->pnext = ssid;
2107                         return 0;
2108                 }
2109         }
2110
2111         /* First network for this priority - add a new priority list */
2112         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2113                                  sizeof(struct wpa_ssid *));
2114         if (nlist == NULL)
2115                 return -1;
2116
2117         for (prio = 0; prio < config->num_prio; prio++) {
2118                 if (nlist[prio]->priority < ssid->priority) {
2119                         os_memmove(&nlist[prio + 1], &nlist[prio],
2120                                    (config->num_prio - prio) *
2121                                    sizeof(struct wpa_ssid *));
2122                         break;
2123                 }
2124         }
2125
2126         nlist[prio] = ssid;
2127         config->num_prio++;
2128         config->pssid = nlist;
2129
2130         return 0;
2131 }
2132
2133
2134 /**
2135  * wpa_config_update_prio_list - Update network priority list
2136  * @config: Configuration data from wpa_config_read()
2137  * Returns: 0 on success, -1 on failure
2138  *
2139  * This function is called to update the priority list of networks in the
2140  * configuration when a network is being added or removed. This is also called
2141  * if a priority for a network is changed.
2142  */
2143 int wpa_config_update_prio_list(struct wpa_config *config)
2144 {
2145         struct wpa_ssid *ssid;
2146         int ret = 0;
2147
2148         os_free(config->pssid);
2149         config->pssid = NULL;
2150         config->num_prio = 0;
2151
2152         ssid = config->ssid;
2153         while (ssid) {
2154                 ssid->pnext = NULL;
2155                 if (wpa_config_add_prio_network(config, ssid) < 0)
2156                         ret = -1;
2157                 ssid = ssid->next;
2158         }
2159
2160         return ret;
2161 }
2162
2163
2164 #ifdef IEEE8021X_EAPOL
2165 static void eap_peer_config_free(struct eap_peer_config *eap)
2166 {
2167         os_free(eap->eap_methods);
2168         bin_clear_free(eap->identity, eap->identity_len);
2169         os_free(eap->anonymous_identity);
2170         bin_clear_free(eap->password, eap->password_len);
2171         os_free(eap->ca_cert);
2172         os_free(eap->ca_path);
2173         os_free(eap->client_cert);
2174         os_free(eap->private_key);
2175         str_clear_free(eap->private_key_passwd);
2176         os_free(eap->dh_file);
2177         os_free(eap->subject_match);
2178         os_free(eap->altsubject_match);
2179         os_free(eap->domain_suffix_match);
2180         os_free(eap->domain_match);
2181         os_free(eap->ca_cert2);
2182         os_free(eap->ca_path2);
2183         os_free(eap->client_cert2);
2184         os_free(eap->private_key2);
2185         str_clear_free(eap->private_key2_passwd);
2186         os_free(eap->dh_file2);
2187         os_free(eap->subject_match2);
2188         os_free(eap->altsubject_match2);
2189         os_free(eap->domain_suffix_match2);
2190         os_free(eap->domain_match2);
2191         os_free(eap->phase1);
2192         os_free(eap->phase2);
2193         os_free(eap->pcsc);
2194         str_clear_free(eap->pin);
2195         os_free(eap->engine_id);
2196         os_free(eap->key_id);
2197         os_free(eap->cert_id);
2198         os_free(eap->ca_cert_id);
2199         os_free(eap->key2_id);
2200         os_free(eap->cert2_id);
2201         os_free(eap->ca_cert2_id);
2202         str_clear_free(eap->pin2);
2203         os_free(eap->engine2_id);
2204         os_free(eap->otp);
2205         os_free(eap->pending_req_otp);
2206         os_free(eap->pac_file);
2207         bin_clear_free(eap->new_password, eap->new_password_len);
2208         str_clear_free(eap->external_sim_resp);
2209         os_free(eap->openssl_ciphers);
2210 }
2211 #endif /* IEEE8021X_EAPOL */
2212
2213
2214 /**
2215  * wpa_config_free_ssid - Free network/ssid configuration data
2216  * @ssid: Configuration data for the network
2217  *
2218  * This function frees all resources allocated for the network configuration
2219  * data.
2220  */
2221 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2222 {
2223         struct psk_list_entry *psk;
2224
2225         os_free(ssid->ssid);
2226         str_clear_free(ssid->passphrase);
2227         os_free(ssid->ext_psk);
2228 #ifdef IEEE8021X_EAPOL
2229         eap_peer_config_free(&ssid->eap);
2230 #endif /* IEEE8021X_EAPOL */
2231         os_free(ssid->id_str);
2232         os_free(ssid->scan_freq);
2233         os_free(ssid->freq_list);
2234         os_free(ssid->bgscan);
2235         os_free(ssid->p2p_client_list);
2236         os_free(ssid->bssid_blacklist);
2237         os_free(ssid->bssid_whitelist);
2238 #ifdef CONFIG_HT_OVERRIDES
2239         os_free(ssid->ht_mcs);
2240 #endif /* CONFIG_HT_OVERRIDES */
2241 #ifdef CONFIG_MESH
2242         os_free(ssid->mesh_basic_rates);
2243 #endif /* CONFIG_MESH */
2244         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2245                                     list))) {
2246                 dl_list_del(&psk->list);
2247                 bin_clear_free(psk, sizeof(*psk));
2248         }
2249         bin_clear_free(ssid, sizeof(*ssid));
2250 }
2251
2252
2253 void wpa_config_free_cred(struct wpa_cred *cred)
2254 {
2255         size_t i;
2256
2257         os_free(cred->realm);
2258         str_clear_free(cred->username);
2259         str_clear_free(cred->password);
2260         os_free(cred->ca_cert);
2261         os_free(cred->client_cert);
2262         os_free(cred->private_key);
2263         str_clear_free(cred->private_key_passwd);
2264         os_free(cred->imsi);
2265         str_clear_free(cred->milenage);
2266         for (i = 0; i < cred->num_domain; i++)
2267                 os_free(cred->domain[i]);
2268         os_free(cred->domain);
2269         os_free(cred->domain_suffix_match);
2270         os_free(cred->eap_method);
2271         os_free(cred->phase1);
2272         os_free(cred->phase2);
2273         os_free(cred->excluded_ssid);
2274         os_free(cred->roaming_partner);
2275         os_free(cred->provisioning_sp);
2276         for (i = 0; i < cred->num_req_conn_capab; i++)
2277                 os_free(cred->req_conn_capab_port[i]);
2278         os_free(cred->req_conn_capab_port);
2279         os_free(cred->req_conn_capab_proto);
2280         os_free(cred);
2281 }
2282
2283
2284 void wpa_config_flush_blobs(struct wpa_config *config)
2285 {
2286 #ifndef CONFIG_NO_CONFIG_BLOBS
2287         struct wpa_config_blob *blob, *prev;
2288
2289         blob = config->blobs;
2290         config->blobs = NULL;
2291         while (blob) {
2292                 prev = blob;
2293                 blob = blob->next;
2294                 wpa_config_free_blob(prev);
2295         }
2296 #endif /* CONFIG_NO_CONFIG_BLOBS */
2297 }
2298
2299
2300 /**
2301  * wpa_config_free - Free configuration data
2302  * @config: Configuration data from wpa_config_read()
2303  *
2304  * This function frees all resources allocated for the configuration data by
2305  * wpa_config_read().
2306  */
2307 void wpa_config_free(struct wpa_config *config)
2308 {
2309         struct wpa_ssid *ssid, *prev = NULL;
2310         struct wpa_cred *cred, *cprev;
2311         int i;
2312
2313         ssid = config->ssid;
2314         while (ssid) {
2315                 prev = ssid;
2316                 ssid = ssid->next;
2317                 wpa_config_free_ssid(prev);
2318         }
2319
2320         cred = config->cred;
2321         while (cred) {
2322                 cprev = cred;
2323                 cred = cred->next;
2324                 wpa_config_free_cred(cprev);
2325         }
2326
2327         wpa_config_flush_blobs(config);
2328
2329         wpabuf_free(config->wps_vendor_ext_m1);
2330         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2331                 wpabuf_free(config->wps_vendor_ext[i]);
2332         os_free(config->ctrl_interface);
2333         os_free(config->ctrl_interface_group);
2334         os_free(config->opensc_engine_path);
2335         os_free(config->pkcs11_engine_path);
2336         os_free(config->pkcs11_module_path);
2337         os_free(config->openssl_ciphers);
2338         os_free(config->pcsc_reader);
2339         str_clear_free(config->pcsc_pin);
2340         os_free(config->driver_param);
2341         os_free(config->device_name);
2342         os_free(config->manufacturer);
2343         os_free(config->model_name);
2344         os_free(config->model_number);
2345         os_free(config->serial_number);
2346         os_free(config->config_methods);
2347         os_free(config->p2p_ssid_postfix);
2348         os_free(config->pssid);
2349         os_free(config->p2p_pref_chan);
2350         os_free(config->p2p_no_go_freq.range);
2351         os_free(config->autoscan);
2352         os_free(config->freq_list);
2353         wpabuf_free(config->wps_nfc_dh_pubkey);
2354         wpabuf_free(config->wps_nfc_dh_privkey);
2355         wpabuf_free(config->wps_nfc_dev_pw);
2356         os_free(config->ext_password_backend);
2357         os_free(config->sae_groups);
2358         wpabuf_free(config->ap_vendor_elements);
2359         os_free(config->osu_dir);
2360         os_free(config->bgscan);
2361         os_free(config->wowlan_triggers);
2362         os_free(config->fst_group_id);
2363         os_free(config->sched_scan_plans);
2364 #ifdef CONFIG_MBO
2365         os_free(config->non_pref_chan);
2366 #endif /* CONFIG_MBO */
2367
2368         os_free(config);
2369 }
2370
2371
2372 /**
2373  * wpa_config_foreach_network - Iterate over each configured network
2374  * @config: Configuration data from wpa_config_read()
2375  * @func: Callback function to process each network
2376  * @arg: Opaque argument to pass to callback function
2377  *
2378  * Iterate over the set of configured networks calling the specified
2379  * function for each item. We guard against callbacks removing the
2380  * supplied network.
2381  */
2382 void wpa_config_foreach_network(struct wpa_config *config,
2383                                 void (*func)(void *, struct wpa_ssid *),
2384                                 void *arg)
2385 {
2386         struct wpa_ssid *ssid, *next;
2387
2388         ssid = config->ssid;
2389         while (ssid) {
2390                 next = ssid->next;
2391                 func(arg, ssid);
2392                 ssid = next;
2393         }
2394 }
2395
2396
2397 /**
2398  * wpa_config_get_network - Get configured network based on id
2399  * @config: Configuration data from wpa_config_read()
2400  * @id: Unique network id to search for
2401  * Returns: Network configuration or %NULL if not found
2402  */
2403 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2404 {
2405         struct wpa_ssid *ssid;
2406
2407         ssid = config->ssid;
2408         while (ssid) {
2409                 if (id == ssid->id)
2410                         break;
2411                 ssid = ssid->next;
2412         }
2413
2414         return ssid;
2415 }
2416
2417
2418 /**
2419  * wpa_config_add_network - Add a new network with empty configuration
2420  * @config: Configuration data from wpa_config_read()
2421  * Returns: The new network configuration or %NULL if operation failed
2422  */
2423 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2424 {
2425         int id;
2426         struct wpa_ssid *ssid, *last = NULL;
2427
2428         id = -1;
2429         ssid = config->ssid;
2430         while (ssid) {
2431                 if (ssid->id > id)
2432                         id = ssid->id;
2433                 last = ssid;
2434                 ssid = ssid->next;
2435         }
2436         id++;
2437
2438         ssid = os_zalloc(sizeof(*ssid));
2439         if (ssid == NULL)
2440                 return NULL;
2441         ssid->id = id;
2442         dl_list_init(&ssid->psk_list);
2443         if (last)
2444                 last->next = ssid;
2445         else
2446                 config->ssid = ssid;
2447
2448         wpa_config_update_prio_list(config);
2449
2450         return ssid;
2451 }
2452
2453
2454 /**
2455  * wpa_config_remove_network - Remove a configured network based on id
2456  * @config: Configuration data from wpa_config_read()
2457  * @id: Unique network id to search for
2458  * Returns: 0 on success, or -1 if the network was not found
2459  */
2460 int wpa_config_remove_network(struct wpa_config *config, int id)
2461 {
2462         struct wpa_ssid *ssid, *prev = NULL;
2463
2464         ssid = config->ssid;
2465         while (ssid) {
2466                 if (id == ssid->id)
2467                         break;
2468                 prev = ssid;
2469                 ssid = ssid->next;
2470         }
2471
2472         if (ssid == NULL)
2473                 return -1;
2474
2475         if (prev)
2476                 prev->next = ssid->next;
2477         else
2478                 config->ssid = ssid->next;
2479
2480         wpa_config_update_prio_list(config);
2481         wpa_config_free_ssid(ssid);
2482         return 0;
2483 }
2484
2485
2486 /**
2487  * wpa_config_set_network_defaults - Set network default values
2488  * @ssid: Pointer to network configuration data
2489  */
2490 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2491 {
2492         ssid->proto = DEFAULT_PROTO;
2493         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2494         ssid->group_cipher = DEFAULT_GROUP;
2495         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2496         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2497 #ifdef IEEE8021X_EAPOL
2498         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2499         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2500         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2501         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2502 #endif /* IEEE8021X_EAPOL */
2503 #ifdef CONFIG_MESH
2504         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2505         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2506         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2507         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2508 #endif /* CONFIG_MESH */
2509 #ifdef CONFIG_HT_OVERRIDES
2510         ssid->disable_ht = DEFAULT_DISABLE_HT;
2511         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2512         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2513         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2514         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2515         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2516         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2517 #endif /* CONFIG_HT_OVERRIDES */
2518 #ifdef CONFIG_VHT_OVERRIDES
2519         ssid->vht_rx_mcs_nss_1 = -1;
2520         ssid->vht_rx_mcs_nss_2 = -1;
2521         ssid->vht_rx_mcs_nss_3 = -1;
2522         ssid->vht_rx_mcs_nss_4 = -1;
2523         ssid->vht_rx_mcs_nss_5 = -1;
2524         ssid->vht_rx_mcs_nss_6 = -1;
2525         ssid->vht_rx_mcs_nss_7 = -1;
2526         ssid->vht_rx_mcs_nss_8 = -1;
2527         ssid->vht_tx_mcs_nss_1 = -1;
2528         ssid->vht_tx_mcs_nss_2 = -1;
2529         ssid->vht_tx_mcs_nss_3 = -1;
2530         ssid->vht_tx_mcs_nss_4 = -1;
2531         ssid->vht_tx_mcs_nss_5 = -1;
2532         ssid->vht_tx_mcs_nss_6 = -1;
2533         ssid->vht_tx_mcs_nss_7 = -1;
2534         ssid->vht_tx_mcs_nss_8 = -1;
2535 #endif /* CONFIG_VHT_OVERRIDES */
2536         ssid->proactive_key_caching = -1;
2537 #ifdef CONFIG_IEEE80211W
2538         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2539 #endif /* CONFIG_IEEE80211W */
2540         ssid->mac_addr = -1;
2541 }
2542
2543
2544 /**
2545  * wpa_config_set - Set a variable in network configuration
2546  * @ssid: Pointer to network configuration data
2547  * @var: Variable name, e.g., "ssid"
2548  * @value: Variable value
2549  * @line: Line number in configuration file or 0 if not used
2550  * Returns: 0 on success with possible change in the value, 1 on success with
2551  * no change to previously configured value, or -1 on failure
2552  *
2553  * This function can be used to set network configuration variables based on
2554  * both the configuration file and management interface input. The value
2555  * parameter must be in the same format as the text-based configuration file is
2556  * using. For example, strings are using double quotation marks.
2557  */
2558 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2559                    int line)
2560 {
2561         size_t i;
2562         int ret = 0;
2563
2564         if (ssid == NULL || var == NULL || value == NULL)
2565                 return -1;
2566
2567         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2568                 const struct parse_data *field = &ssid_fields[i];
2569                 if (os_strcmp(var, field->name) != 0)
2570                         continue;
2571
2572                 ret = field->parser(field, ssid, line, value);
2573                 if (ret < 0) {
2574                         if (line) {
2575                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2576                                            "parse %s '%s'.", line, var, value);
2577                         }
2578                         ret = -1;
2579                 }
2580                 break;
2581         }
2582         if (i == NUM_SSID_FIELDS) {
2583                 if (line) {
2584                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2585                                    "'%s'.", line, var);
2586                 }
2587                 ret = -1;
2588         }
2589
2590         return ret;
2591 }
2592
2593
2594 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2595                           const char *value)
2596 {
2597         size_t len;
2598         char *buf;
2599         int ret;
2600
2601         len = os_strlen(value);
2602         buf = os_malloc(len + 3);
2603         if (buf == NULL)
2604                 return -1;
2605         buf[0] = '"';
2606         os_memcpy(buf + 1, value, len);
2607         buf[len + 1] = '"';
2608         buf[len + 2] = '\0';
2609         ret = wpa_config_set(ssid, var, buf, 0);
2610         os_free(buf);
2611         return ret;
2612 }
2613
2614
2615 /**
2616  * wpa_config_get_all - Get all options from network configuration
2617  * @ssid: Pointer to network configuration data
2618  * @get_keys: Determines if keys/passwords will be included in returned list
2619  *      (if they may be exported)
2620  * Returns: %NULL terminated list of all set keys and their values in the form
2621  * of [key1, val1, key2, val2, ... , NULL]
2622  *
2623  * This function can be used to get list of all configured network properties.
2624  * The caller is responsible for freeing the returned list and all its
2625  * elements.
2626  */
2627 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2628 {
2629 #ifdef NO_CONFIG_WRITE
2630         return NULL;
2631 #else /* NO_CONFIG_WRITE */
2632         const struct parse_data *field;
2633         char *key, *value;
2634         size_t i;
2635         char **props;
2636         int fields_num;
2637
2638         get_keys = get_keys && ssid->export_keys;
2639
2640         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2641         if (!props)
2642                 return NULL;
2643
2644         fields_num = 0;
2645         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2646                 field = &ssid_fields[i];
2647                 if (field->key_data && !get_keys)
2648                         continue;
2649                 value = field->writer(field, ssid);
2650                 if (value == NULL)
2651                         continue;
2652                 if (os_strlen(value) == 0) {
2653                         os_free(value);
2654                         continue;
2655                 }
2656
2657                 key = os_strdup(field->name);
2658                 if (key == NULL) {
2659                         os_free(value);
2660                         goto err;
2661                 }
2662
2663                 props[fields_num * 2] = key;
2664                 props[fields_num * 2 + 1] = value;
2665
2666                 fields_num++;
2667         }
2668
2669         return props;
2670
2671 err:
2672         for (i = 0; props[i]; i++)
2673                 os_free(props[i]);
2674         os_free(props);
2675         return NULL;
2676 #endif /* NO_CONFIG_WRITE */
2677 }
2678
2679
2680 #ifndef NO_CONFIG_WRITE
2681 /**
2682  * wpa_config_get - Get a variable in network configuration
2683  * @ssid: Pointer to network configuration data
2684  * @var: Variable name, e.g., "ssid"
2685  * Returns: Value of the variable or %NULL on failure
2686  *
2687  * This function can be used to get network configuration variables. The
2688  * returned value is a copy of the configuration variable in text format, i.e,.
2689  * the same format that the text-based configuration file and wpa_config_set()
2690  * are using for the value. The caller is responsible for freeing the returned
2691  * value.
2692  */
2693 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2694 {
2695         size_t i;
2696
2697         if (ssid == NULL || var == NULL)
2698                 return NULL;
2699
2700         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2701                 const struct parse_data *field = &ssid_fields[i];
2702                 if (os_strcmp(var, field->name) == 0) {
2703                         char *ret = field->writer(field, ssid);
2704
2705                         if (ret && has_newline(ret)) {
2706                                 wpa_printf(MSG_ERROR,
2707                                            "Found newline in value for %s; not returning it",
2708                                            var);
2709                                 os_free(ret);
2710                                 ret = NULL;
2711                         }
2712
2713                         return ret;
2714                 }
2715         }
2716
2717         return NULL;
2718 }
2719
2720
2721 /**
2722  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2723  * @ssid: Pointer to network configuration data
2724  * @var: Variable name, e.g., "ssid"
2725  * Returns: Value of the variable or %NULL on failure
2726  *
2727  * This function can be used to get network configuration variable like
2728  * wpa_config_get(). The only difference is that this functions does not expose
2729  * key/password material from the configuration. In case a key/password field
2730  * is requested, the returned value is an empty string or %NULL if the variable
2731  * is not set or "*" if the variable is set (regardless of its value). The
2732  * returned value is a copy of the configuration variable in text format, i.e,.
2733  * the same format that the text-based configuration file and wpa_config_set()
2734  * are using for the value. The caller is responsible for freeing the returned
2735  * value.
2736  */
2737 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2738 {
2739         size_t i;
2740
2741         if (ssid == NULL || var == NULL)
2742                 return NULL;
2743
2744         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2745                 const struct parse_data *field = &ssid_fields[i];
2746                 if (os_strcmp(var, field->name) == 0) {
2747                         char *res = field->writer(field, ssid);
2748                         if (field->key_data) {
2749                                 if (res && res[0]) {
2750                                         wpa_printf(MSG_DEBUG, "Do not allow "
2751                                                    "key_data field to be "
2752                                                    "exposed");
2753                                         str_clear_free(res);
2754                                         return os_strdup("*");
2755                                 }
2756
2757                                 os_free(res);
2758                                 return NULL;
2759                         }
2760                         return res;
2761                 }
2762         }
2763
2764         return NULL;
2765 }
2766 #endif /* NO_CONFIG_WRITE */
2767
2768
2769 /**
2770  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2771  * @ssid: Pointer to network configuration data
2772  *
2773  * This function must be called to update WPA PSK when either SSID or the
2774  * passphrase has changed for the network configuration.
2775  */
2776 void wpa_config_update_psk(struct wpa_ssid *ssid)
2777 {
2778 #ifndef CONFIG_NO_PBKDF2
2779         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2780                     ssid->psk, PMK_LEN);
2781         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2782                         ssid->psk, PMK_LEN);
2783         ssid->psk_set = 1;
2784 #endif /* CONFIG_NO_PBKDF2 */
2785 }
2786
2787
2788 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2789                                               const char *value)
2790 {
2791         u8 *proto;
2792         int **port;
2793         int *ports, *nports;
2794         const char *pos;
2795         unsigned int num_ports;
2796
2797         proto = os_realloc_array(cred->req_conn_capab_proto,
2798                                  cred->num_req_conn_capab + 1, sizeof(u8));
2799         if (proto == NULL)
2800                 return -1;
2801         cred->req_conn_capab_proto = proto;
2802
2803         port = os_realloc_array(cred->req_conn_capab_port,
2804                                 cred->num_req_conn_capab + 1, sizeof(int *));
2805         if (port == NULL)
2806                 return -1;
2807         cred->req_conn_capab_port = port;
2808
2809         proto[cred->num_req_conn_capab] = atoi(value);
2810
2811         pos = os_strchr(value, ':');
2812         if (pos == NULL) {
2813                 port[cred->num_req_conn_capab] = NULL;
2814                 cred->num_req_conn_capab++;
2815                 return 0;
2816         }
2817         pos++;
2818
2819         ports = NULL;
2820         num_ports = 0;
2821
2822         while (*pos) {
2823                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2824                 if (nports == NULL) {
2825                         os_free(ports);
2826                         return -1;
2827                 }
2828                 ports = nports;
2829                 ports[num_ports++] = atoi(pos);
2830
2831                 pos = os_strchr(pos, ',');
2832                 if (pos == NULL)
2833                         break;
2834                 pos++;
2835         }
2836
2837         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2838         if (nports == NULL) {
2839                 os_free(ports);
2840                 return -1;
2841         }
2842         ports = nports;
2843         ports[num_ports] = -1;
2844
2845         port[cred->num_req_conn_capab] = ports;
2846         cred->num_req_conn_capab++;
2847         return 0;
2848 }
2849
2850
2851 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2852                         const char *value, int line)
2853 {
2854         char *val;
2855         size_t len;
2856
2857         if (os_strcmp(var, "temporary") == 0) {
2858                 cred->temporary = atoi(value);
2859                 return 0;
2860         }
2861
2862         if (os_strcmp(var, "priority") == 0) {
2863                 cred->priority = atoi(value);
2864                 return 0;
2865         }
2866
2867         if (os_strcmp(var, "sp_priority") == 0) {
2868                 int prio = atoi(value);
2869                 if (prio < 0 || prio > 255)
2870                         return -1;
2871                 cred->sp_priority = prio;
2872                 return 0;
2873         }
2874
2875         if (os_strcmp(var, "pcsc") == 0) {
2876                 cred->pcsc = atoi(value);
2877                 return 0;
2878         }
2879
2880         if (os_strcmp(var, "eap") == 0) {
2881                 struct eap_method_type method;
2882                 method.method = eap_peer_get_type(value, &method.vendor);
2883                 if (method.vendor == EAP_VENDOR_IETF &&
2884                     method.method == EAP_TYPE_NONE) {
2885                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2886                                    "for a credential", line, value);
2887                         return -1;
2888                 }
2889                 os_free(cred->eap_method);
2890                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2891                 if (cred->eap_method == NULL)
2892                         return -1;
2893                 os_memcpy(cred->eap_method, &method, sizeof(method));
2894                 return 0;
2895         }
2896
2897         if (os_strcmp(var, "password") == 0 &&
2898             os_strncmp(value, "ext:", 4) == 0) {
2899                 if (has_newline(value))
2900                         return -1;
2901                 str_clear_free(cred->password);
2902                 cred->password = os_strdup(value);
2903                 cred->ext_password = 1;
2904                 return 0;
2905         }
2906
2907         if (os_strcmp(var, "update_identifier") == 0) {
2908                 cred->update_identifier = atoi(value);
2909                 return 0;
2910         }
2911
2912         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2913                 cred->min_dl_bandwidth_home = atoi(value);
2914                 return 0;
2915         }
2916
2917         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2918                 cred->min_ul_bandwidth_home = atoi(value);
2919                 return 0;
2920         }
2921
2922         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2923                 cred->min_dl_bandwidth_roaming = atoi(value);
2924                 return 0;
2925         }
2926
2927         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2928                 cred->min_ul_bandwidth_roaming = atoi(value);
2929                 return 0;
2930         }
2931
2932         if (os_strcmp(var, "max_bss_load") == 0) {
2933                 cred->max_bss_load = atoi(value);
2934                 return 0;
2935         }
2936
2937         if (os_strcmp(var, "req_conn_capab") == 0)
2938                 return wpa_config_set_cred_req_conn_capab(cred, value);
2939
2940         if (os_strcmp(var, "ocsp") == 0) {
2941                 cred->ocsp = atoi(value);
2942                 return 0;
2943         }
2944
2945         if (os_strcmp(var, "sim_num") == 0) {
2946                 cred->sim_num = atoi(value);
2947                 return 0;
2948         }
2949
2950         val = wpa_config_parse_string(value, &len);
2951         if (val == NULL ||
2952             (os_strcmp(var, "excluded_ssid") != 0 &&
2953              os_strcmp(var, "roaming_consortium") != 0 &&
2954              os_strcmp(var, "required_roaming_consortium") != 0 &&
2955              has_newline(val))) {
2956                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2957                            "value '%s'.", line, var, value);
2958                 os_free(val);
2959                 return -1;
2960         }
2961
2962         if (os_strcmp(var, "realm") == 0) {
2963                 os_free(cred->realm);
2964                 cred->realm = val;
2965                 return 0;
2966         }
2967
2968         if (os_strcmp(var, "username") == 0) {
2969                 str_clear_free(cred->username);
2970                 cred->username = val;
2971                 return 0;
2972         }
2973
2974         if (os_strcmp(var, "password") == 0) {
2975                 str_clear_free(cred->password);
2976                 cred->password = val;
2977                 cred->ext_password = 0;
2978                 return 0;
2979         }
2980
2981         if (os_strcmp(var, "ca_cert") == 0) {
2982                 os_free(cred->ca_cert);
2983                 cred->ca_cert = val;
2984                 return 0;
2985         }
2986
2987         if (os_strcmp(var, "client_cert") == 0) {
2988                 os_free(cred->client_cert);
2989                 cred->client_cert = val;
2990                 return 0;
2991         }
2992
2993         if (os_strcmp(var, "private_key") == 0) {
2994                 os_free(cred->private_key);
2995                 cred->private_key = val;
2996                 return 0;
2997         }
2998
2999         if (os_strcmp(var, "private_key_passwd") == 0) {
3000                 str_clear_free(cred->private_key_passwd);
3001                 cred->private_key_passwd = val;
3002                 return 0;
3003         }
3004
3005         if (os_strcmp(var, "imsi") == 0) {
3006                 os_free(cred->imsi);
3007                 cred->imsi = val;
3008                 return 0;
3009         }
3010
3011         if (os_strcmp(var, "milenage") == 0) {
3012                 str_clear_free(cred->milenage);
3013                 cred->milenage = val;
3014                 return 0;
3015         }
3016
3017         if (os_strcmp(var, "domain_suffix_match") == 0) {
3018                 os_free(cred->domain_suffix_match);
3019                 cred->domain_suffix_match = val;
3020                 return 0;
3021         }
3022
3023         if (os_strcmp(var, "domain") == 0) {
3024                 char **new_domain;
3025                 new_domain = os_realloc_array(cred->domain,
3026                                               cred->num_domain + 1,
3027                                               sizeof(char *));
3028                 if (new_domain == NULL) {
3029                         os_free(val);
3030                         return -1;
3031                 }
3032                 new_domain[cred->num_domain++] = val;
3033                 cred->domain = new_domain;
3034                 return 0;
3035         }
3036
3037         if (os_strcmp(var, "phase1") == 0) {
3038                 os_free(cred->phase1);
3039                 cred->phase1 = val;
3040                 return 0;
3041         }
3042
3043         if (os_strcmp(var, "phase2") == 0) {
3044                 os_free(cred->phase2);
3045                 cred->phase2 = val;
3046                 return 0;
3047         }
3048
3049         if (os_strcmp(var, "roaming_consortium") == 0) {
3050                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
3051                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3052                                    "roaming_consortium length %d (3..15 "
3053                                    "expected)", line, (int) len);
3054                         os_free(val);
3055                         return -1;
3056                 }
3057                 os_memcpy(cred->roaming_consortium, val, len);
3058                 cred->roaming_consortium_len = len;
3059                 os_free(val);
3060                 return 0;
3061         }
3062
3063         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3064                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
3065                 {
3066                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3067                                    "required_roaming_consortium length %d "
3068                                    "(3..15 expected)", line, (int) len);
3069                         os_free(val);
3070                         return -1;
3071                 }
3072                 os_memcpy(cred->required_roaming_consortium, val, len);
3073                 cred->required_roaming_consortium_len = len;
3074                 os_free(val);
3075                 return 0;
3076         }
3077
3078         if (os_strcmp(var, "excluded_ssid") == 0) {
3079                 struct excluded_ssid *e;
3080
3081                 if (len > SSID_MAX_LEN) {
3082                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3083                                    "excluded_ssid length %d", line, (int) len);
3084                         os_free(val);
3085                         return -1;
3086                 }
3087
3088                 e = os_realloc_array(cred->excluded_ssid,
3089                                      cred->num_excluded_ssid + 1,
3090                                      sizeof(struct excluded_ssid));
3091                 if (e == NULL) {
3092                         os_free(val);
3093                         return -1;
3094                 }
3095                 cred->excluded_ssid = e;
3096
3097                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
3098                 os_memcpy(e->ssid, val, len);
3099                 e->ssid_len = len;
3100
3101                 os_free(val);
3102
3103                 return 0;
3104         }
3105
3106         if (os_strcmp(var, "roaming_partner") == 0) {
3107                 struct roaming_partner *p;
3108                 char *pos;
3109
3110                 p = os_realloc_array(cred->roaming_partner,
3111                                      cred->num_roaming_partner + 1,
3112                                      sizeof(struct roaming_partner));
3113                 if (p == NULL) {
3114                         os_free(val);
3115                         return -1;
3116                 }
3117                 cred->roaming_partner = p;
3118
3119                 p = &cred->roaming_partner[cred->num_roaming_partner];
3120
3121                 pos = os_strchr(val, ',');
3122                 if (pos == NULL) {
3123                         os_free(val);
3124                         return -1;
3125                 }
3126                 *pos++ = '\0';
3127                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3128                         os_free(val);
3129                         return -1;
3130                 }
3131                 os_memcpy(p->fqdn, val, pos - val);
3132
3133                 p->exact_match = atoi(pos);
3134
3135                 pos = os_strchr(pos, ',');
3136                 if (pos == NULL) {
3137                         os_free(val);
3138                         return -1;
3139                 }
3140                 *pos++ = '\0';
3141
3142                 p->priority = atoi(pos);
3143
3144                 pos = os_strchr(pos, ',');
3145                 if (pos == NULL) {
3146                         os_free(val);
3147                         return -1;
3148                 }
3149                 *pos++ = '\0';
3150
3151                 if (os_strlen(pos) >= sizeof(p->country)) {
3152                         os_free(val);
3153                         return -1;
3154                 }
3155                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3156
3157                 cred->num_roaming_partner++;
3158                 os_free(val);
3159
3160                 return 0;
3161         }
3162
3163         if (os_strcmp(var, "provisioning_sp") == 0) {
3164                 os_free(cred->provisioning_sp);
3165                 cred->provisioning_sp = val;
3166                 return 0;
3167         }
3168
3169         if (line) {
3170                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3171                            line, var);
3172         }
3173
3174         os_free(val);
3175
3176         return -1;
3177 }
3178
3179
3180 static char * alloc_int_str(int val)
3181 {
3182         const unsigned int bufsize = 20;
3183         char *buf;
3184         int res;
3185
3186         buf = os_malloc(bufsize);
3187         if (buf == NULL)
3188                 return NULL;
3189         res = os_snprintf(buf, bufsize, "%d", val);
3190         if (os_snprintf_error(bufsize, res)) {
3191                 os_free(buf);
3192                 buf = NULL;
3193         }
3194         return buf;
3195 }
3196
3197
3198 static char * alloc_strdup(const char *str)
3199 {
3200         if (str == NULL)
3201                 return NULL;
3202         return os_strdup(str);
3203 }
3204
3205
3206 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3207 {
3208         if (os_strcmp(var, "temporary") == 0)
3209                 return alloc_int_str(cred->temporary);
3210
3211         if (os_strcmp(var, "priority") == 0)
3212                 return alloc_int_str(cred->priority);
3213
3214         if (os_strcmp(var, "sp_priority") == 0)
3215                 return alloc_int_str(cred->sp_priority);
3216
3217         if (os_strcmp(var, "pcsc") == 0)
3218                 return alloc_int_str(cred->pcsc);
3219
3220         if (os_strcmp(var, "eap") == 0) {
3221                 if (!cred->eap_method)
3222                         return NULL;
3223                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3224                                                  cred->eap_method[0].method));
3225         }
3226
3227         if (os_strcmp(var, "update_identifier") == 0)
3228                 return alloc_int_str(cred->update_identifier);
3229
3230         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3231                 return alloc_int_str(cred->min_dl_bandwidth_home);
3232
3233         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3234                 return alloc_int_str(cred->min_ul_bandwidth_home);
3235
3236         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3237                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3238
3239         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3240                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3241
3242         if (os_strcmp(var, "max_bss_load") == 0)
3243                 return alloc_int_str(cred->max_bss_load);
3244
3245         if (os_strcmp(var, "req_conn_capab") == 0) {
3246                 unsigned int i;
3247                 char *buf, *end, *pos;
3248                 int ret;
3249
3250                 if (!cred->num_req_conn_capab)
3251                         return NULL;
3252
3253                 buf = os_malloc(4000);
3254                 if (buf == NULL)
3255                         return NULL;
3256                 pos = buf;
3257                 end = pos + 4000;
3258                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3259                         int *ports;
3260
3261                         ret = os_snprintf(pos, end - pos, "%s%u",
3262                                           i > 0 ? "\n" : "",
3263                                           cred->req_conn_capab_proto[i]);
3264                         if (os_snprintf_error(end - pos, ret))
3265                                 return buf;
3266                         pos += ret;
3267
3268                         ports = cred->req_conn_capab_port[i];
3269                         if (ports) {
3270                                 int j;
3271                                 for (j = 0; ports[j] != -1; j++) {
3272                                         ret = os_snprintf(pos, end - pos,
3273                                                           "%s%d",
3274                                                           j > 0 ? "," : ":",
3275                                                           ports[j]);
3276                                         if (os_snprintf_error(end - pos, ret))
3277                                                 return buf;
3278                                         pos += ret;
3279                                 }
3280                         }
3281                 }
3282
3283                 return buf;
3284         }
3285
3286         if (os_strcmp(var, "ocsp") == 0)
3287                 return alloc_int_str(cred->ocsp);
3288
3289         if (os_strcmp(var, "realm") == 0)
3290                 return alloc_strdup(cred->realm);
3291
3292         if (os_strcmp(var, "username") == 0)
3293                 return alloc_strdup(cred->username);
3294
3295         if (os_strcmp(var, "password") == 0) {
3296                 if (!cred->password)
3297                         return NULL;
3298                 return alloc_strdup("*");
3299         }
3300
3301         if (os_strcmp(var, "ca_cert") == 0)
3302                 return alloc_strdup(cred->ca_cert);
3303
3304         if (os_strcmp(var, "client_cert") == 0)
3305                 return alloc_strdup(cred->client_cert);
3306
3307         if (os_strcmp(var, "private_key") == 0)
3308                 return alloc_strdup(cred->private_key);
3309
3310         if (os_strcmp(var, "private_key_passwd") == 0) {
3311                 if (!cred->private_key_passwd)
3312                         return NULL;
3313                 return alloc_strdup("*");
3314         }
3315
3316         if (os_strcmp(var, "imsi") == 0)
3317                 return alloc_strdup(cred->imsi);
3318
3319         if (os_strcmp(var, "milenage") == 0) {
3320                 if (!(cred->milenage))
3321                         return NULL;
3322                 return alloc_strdup("*");
3323         }
3324
3325         if (os_strcmp(var, "domain_suffix_match") == 0)
3326                 return alloc_strdup(cred->domain_suffix_match);
3327
3328         if (os_strcmp(var, "domain") == 0) {
3329                 unsigned int i;
3330                 char *buf, *end, *pos;
3331                 int ret;
3332
3333                 if (!cred->num_domain)
3334                         return NULL;
3335
3336                 buf = os_malloc(4000);
3337                 if (buf == NULL)
3338                         return NULL;
3339                 pos = buf;
3340                 end = pos + 4000;
3341
3342                 for (i = 0; i < cred->num_domain; i++) {
3343                         ret = os_snprintf(pos, end - pos, "%s%s",
3344                                           i > 0 ? "\n" : "", cred->domain[i]);
3345                         if (os_snprintf_error(end - pos, ret))
3346                                 return buf;
3347                         pos += ret;
3348                 }
3349
3350                 return buf;
3351         }
3352
3353         if (os_strcmp(var, "phase1") == 0)
3354                 return alloc_strdup(cred->phase1);
3355
3356         if (os_strcmp(var, "phase2") == 0)
3357                 return alloc_strdup(cred->phase2);
3358
3359         if (os_strcmp(var, "roaming_consortium") == 0) {
3360                 size_t buflen;
3361                 char *buf;
3362
3363                 if (!cred->roaming_consortium_len)
3364                         return NULL;
3365                 buflen = cred->roaming_consortium_len * 2 + 1;
3366                 buf = os_malloc(buflen);
3367                 if (buf == NULL)
3368                         return NULL;
3369                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3370                                  cred->roaming_consortium_len);
3371                 return buf;
3372         }
3373
3374         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3375                 size_t buflen;
3376                 char *buf;
3377
3378                 if (!cred->required_roaming_consortium_len)
3379                         return NULL;
3380                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3381                 buf = os_malloc(buflen);
3382                 if (buf == NULL)
3383                         return NULL;
3384                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3385                                  cred->required_roaming_consortium_len);
3386                 return buf;
3387         }
3388
3389         if (os_strcmp(var, "excluded_ssid") == 0) {
3390                 unsigned int i;
3391                 char *buf, *end, *pos;
3392
3393                 if (!cred->num_excluded_ssid)
3394                         return NULL;
3395
3396                 buf = os_malloc(4000);
3397                 if (buf == NULL)
3398                         return NULL;
3399                 pos = buf;
3400                 end = pos + 4000;
3401
3402                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3403                         struct excluded_ssid *e;
3404                         int ret;
3405
3406                         e = &cred->excluded_ssid[i];
3407                         ret = os_snprintf(pos, end - pos, "%s%s",
3408                                           i > 0 ? "\n" : "",
3409                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3410                         if (os_snprintf_error(end - pos, ret))
3411                                 return buf;
3412                         pos += ret;
3413                 }
3414
3415                 return buf;
3416         }
3417
3418         if (os_strcmp(var, "roaming_partner") == 0) {
3419                 unsigned int i;
3420                 char *buf, *end, *pos;
3421
3422                 if (!cred->num_roaming_partner)
3423                         return NULL;
3424
3425                 buf = os_malloc(4000);
3426                 if (buf == NULL)
3427                         return NULL;
3428                 pos = buf;
3429                 end = pos + 4000;
3430
3431                 for (i = 0; i < cred->num_roaming_partner; i++) {
3432                         struct roaming_partner *p;
3433                         int ret;
3434
3435                         p = &cred->roaming_partner[i];
3436                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3437                                           i > 0 ? "\n" : "",
3438                                           p->fqdn, p->exact_match, p->priority,
3439                                           p->country);
3440                         if (os_snprintf_error(end - pos, ret))
3441                                 return buf;
3442                         pos += ret;
3443                 }
3444
3445                 return buf;
3446         }
3447
3448         if (os_strcmp(var, "provisioning_sp") == 0)
3449                 return alloc_strdup(cred->provisioning_sp);
3450
3451         return NULL;
3452 }
3453
3454
3455 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3456 {
3457         struct wpa_cred *cred;
3458
3459         cred = config->cred;
3460         while (cred) {
3461                 if (id == cred->id)
3462                         break;
3463                 cred = cred->next;
3464         }
3465
3466         return cred;
3467 }
3468
3469
3470 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3471 {
3472         int id;
3473         struct wpa_cred *cred, *last = NULL;
3474
3475         id = -1;
3476         cred = config->cred;
3477         while (cred) {
3478                 if (cred->id > id)
3479                         id = cred->id;
3480                 last = cred;
3481                 cred = cred->next;
3482         }
3483         id++;
3484
3485         cred = os_zalloc(sizeof(*cred));
3486         if (cred == NULL)
3487                 return NULL;
3488         cred->id = id;
3489         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3490         if (last)
3491                 last->next = cred;
3492         else
3493                 config->cred = cred;
3494
3495         return cred;
3496 }
3497
3498
3499 int wpa_config_remove_cred(struct wpa_config *config, int id)
3500 {
3501         struct wpa_cred *cred, *prev = NULL;
3502
3503         cred = config->cred;
3504         while (cred) {
3505                 if (id == cred->id)
3506                         break;
3507                 prev = cred;
3508                 cred = cred->next;
3509         }
3510
3511         if (cred == NULL)
3512                 return -1;
3513
3514         if (prev)
3515                 prev->next = cred->next;
3516         else
3517                 config->cred = cred->next;
3518
3519         wpa_config_free_cred(cred);
3520         return 0;
3521 }
3522
3523
3524 #ifndef CONFIG_NO_CONFIG_BLOBS
3525 /**
3526  * wpa_config_get_blob - Get a named configuration blob
3527  * @config: Configuration data from wpa_config_read()
3528  * @name: Name of the blob
3529  * Returns: Pointer to blob data or %NULL if not found
3530  */
3531 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3532                                                    const char *name)
3533 {
3534         struct wpa_config_blob *blob = config->blobs;
3535
3536         while (blob) {
3537                 if (os_strcmp(blob->name, name) == 0)
3538                         return blob;
3539                 blob = blob->next;
3540         }
3541         return NULL;
3542 }
3543
3544
3545 /**
3546  * wpa_config_set_blob - Set or add a named configuration blob
3547  * @config: Configuration data from wpa_config_read()
3548  * @blob: New value for the blob
3549  *
3550  * Adds a new configuration blob or replaces the current value of an existing
3551  * blob.
3552  */
3553 void wpa_config_set_blob(struct wpa_config *config,
3554                          struct wpa_config_blob *blob)
3555 {
3556         wpa_config_remove_blob(config, blob->name);
3557         blob->next = config->blobs;
3558         config->blobs = blob;
3559 }
3560
3561
3562 /**
3563  * wpa_config_free_blob - Free blob data
3564  * @blob: Pointer to blob to be freed
3565  */
3566 void wpa_config_free_blob(struct wpa_config_blob *blob)
3567 {
3568         if (blob) {
3569                 os_free(blob->name);
3570                 bin_clear_free(blob->data, blob->len);
3571                 os_free(blob);
3572         }
3573 }
3574
3575
3576 /**
3577  * wpa_config_remove_blob - Remove a named configuration blob
3578  * @config: Configuration data from wpa_config_read()
3579  * @name: Name of the blob to remove
3580  * Returns: 0 if blob was removed or -1 if blob was not found
3581  */
3582 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3583 {
3584         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3585
3586         while (pos) {
3587                 if (os_strcmp(pos->name, name) == 0) {
3588                         if (prev)
3589                                 prev->next = pos->next;
3590                         else
3591                                 config->blobs = pos->next;
3592                         wpa_config_free_blob(pos);
3593                         return 0;
3594                 }
3595                 prev = pos;
3596                 pos = pos->next;
3597         }
3598
3599         return -1;
3600 }
3601 #endif /* CONFIG_NO_CONFIG_BLOBS */
3602
3603
3604 /**
3605  * wpa_config_alloc_empty - Allocate an empty configuration
3606  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3607  * socket
3608  * @driver_param: Driver parameters
3609  * Returns: Pointer to allocated configuration data or %NULL on failure
3610  */
3611 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3612                                            const char *driver_param)
3613 {
3614         struct wpa_config *config;
3615         const int aCWmin = 4, aCWmax = 10;
3616         const struct hostapd_wmm_ac_params ac_bk =
3617                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3618         const struct hostapd_wmm_ac_params ac_be =
3619                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3620         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3621                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3622         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3623                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3624
3625         config = os_zalloc(sizeof(*config));
3626         if (config == NULL)
3627                 return NULL;
3628         config->eapol_version = DEFAULT_EAPOL_VERSION;
3629         config->ap_scan = DEFAULT_AP_SCAN;
3630         config->user_mpm = DEFAULT_USER_MPM;
3631         config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
3632         config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
3633         config->dot11RSNASAERetransPeriod =
3634                 DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD;
3635         config->fast_reauth = DEFAULT_FAST_REAUTH;
3636         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3637         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3638         config->p2p_go_freq_change_policy = DEFAULT_P2P_GO_FREQ_MOVE;
3639         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3640         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3641         config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
3642         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3643         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3644         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3645         config->max_num_sta = DEFAULT_MAX_NUM_STA;
3646         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3647         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3648         config->wmm_ac_params[0] = ac_be;
3649         config->wmm_ac_params[1] = ac_bk;
3650         config->wmm_ac_params[2] = ac_vi;
3651         config->wmm_ac_params[3] = ac_vo;
3652         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3653         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3654         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3655         config->cert_in_cb = DEFAULT_CERT_IN_CB;
3656         config->wpa_rsc_relaxation = DEFAULT_WPA_RSC_RELAXATION;
3657
3658 #ifdef CONFIG_MBO
3659         config->mbo_cell_capa = DEFAULT_MBO_CELL_CAPA;
3660 #endif /* CONFIG_MBO */
3661
3662         if (ctrl_interface)
3663                 config->ctrl_interface = os_strdup(ctrl_interface);
3664         if (driver_param)
3665                 config->driver_param = os_strdup(driver_param);
3666
3667         return config;
3668 }
3669
3670
3671 #ifndef CONFIG_NO_STDOUT_DEBUG
3672 /**
3673  * wpa_config_debug_dump_networks - Debug dump of configured networks
3674  * @config: Configuration data from wpa_config_read()
3675  */
3676 void wpa_config_debug_dump_networks(struct wpa_config *config)
3677 {
3678         int prio;
3679         struct wpa_ssid *ssid;
3680
3681         for (prio = 0; prio < config->num_prio; prio++) {
3682                 ssid = config->pssid[prio];
3683                 wpa_printf(MSG_DEBUG, "Priority group %d",
3684                            ssid->priority);
3685                 while (ssid) {
3686                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3687                                    ssid->id,
3688                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3689                         ssid = ssid->pnext;
3690                 }
3691         }
3692 }
3693 #endif /* CONFIG_NO_STDOUT_DEBUG */
3694
3695
3696 struct global_parse_data {
3697         char *name;
3698         int (*parser)(const struct global_parse_data *data,
3699                       struct wpa_config *config, int line, const char *value);
3700         int (*get)(const char *name, struct wpa_config *config, long offset,
3701                    char *buf, size_t buflen, int pretty_print);
3702         void *param1, *param2, *param3;
3703         unsigned int changed_flag;
3704 };
3705
3706
3707 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3708                                        struct wpa_config *config, int line,
3709                                        const char *pos)
3710 {
3711         int val, *dst;
3712         char *end;
3713
3714         dst = (int *) (((u8 *) config) + (long) data->param1);
3715         val = strtol(pos, &end, 0);
3716         if (*end) {
3717                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3718                            line, pos);
3719                 return -1;
3720         }
3721         *dst = val;
3722
3723         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3724
3725         if (data->param2 && *dst < (long) data->param2) {
3726                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3727                            "min_value=%ld)", line, data->name, *dst,
3728                            (long) data->param2);
3729                 *dst = (long) data->param2;
3730                 return -1;
3731         }
3732
3733         if (data->param3 && *dst > (long) data->param3) {
3734                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3735                            "max_value=%ld)", line, data->name, *dst,
3736                            (long) data->param3);
3737                 *dst = (long) data->param3;
3738                 return -1;
3739         }
3740
3741         return 0;
3742 }
3743
3744
3745 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3746                                        struct wpa_config *config, int line,
3747                                        const char *pos)
3748 {
3749         size_t len;
3750         char **dst, *tmp;
3751
3752         len = os_strlen(pos);
3753         if (data->param2 && len < (size_t) data->param2) {
3754                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3755                            "min_len=%ld)", line, data->name,
3756                            (unsigned long) len, (long) data->param2);
3757                 return -1;
3758         }
3759
3760         if (data->param3 && len > (size_t) data->param3) {
3761                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3762                            "max_len=%ld)", line, data->name,
3763                            (unsigned long) len, (long) data->param3);
3764                 return -1;
3765         }
3766
3767         if (has_newline(pos)) {
3768                 wpa_printf(MSG_ERROR, "Line %d: invalid %s value with newline",
3769                            line, data->name);
3770                 return -1;
3771         }
3772
3773         tmp = os_strdup(pos);
3774         if (tmp == NULL)
3775                 return -1;
3776
3777         dst = (char **) (((u8 *) config) + (long) data->param1);
3778         os_free(*dst);
3779         *dst = tmp;
3780         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3781
3782         return 0;
3783 }
3784
3785
3786 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3787                                      struct wpa_config *config, int line,
3788                                      const char *pos)
3789 {
3790         size_t len;
3791         char *tmp;
3792         int res;
3793
3794         tmp = wpa_config_parse_string(pos, &len);
3795         if (tmp == NULL) {
3796                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3797                            line, data->name);
3798                 return -1;
3799         }
3800
3801         res = wpa_global_config_parse_str(data, config, line, tmp);
3802         os_free(tmp);
3803         return res;
3804 }
3805
3806
3807 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3808                                        struct wpa_config *config, int line,
3809                                        const char *pos)
3810 {
3811         struct wpabuf **dst, *tmp;
3812
3813         tmp = wpabuf_parse_bin(pos);
3814         if (!tmp)
3815                 return -1;
3816
3817         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3818         wpabuf_free(*dst);
3819         *dst = tmp;
3820         wpa_printf(MSG_DEBUG, "%s", data->name);
3821
3822         return 0;
3823 }
3824
3825
3826 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3827                                         struct wpa_config *config, int line,
3828                                         const char *value)
3829 {
3830         int *freqs;
3831
3832         freqs = wpa_config_parse_int_array(value);
3833         if (freqs == NULL)
3834                 return -1;
3835         if (freqs[0] == 0) {
3836                 os_free(freqs);
3837                 freqs = NULL;
3838         }
3839         os_free(config->freq_list);
3840         config->freq_list = freqs;
3841         return 0;
3842 }
3843
3844
3845 #ifdef CONFIG_P2P
3846 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3847                                         struct wpa_config *config, int line,
3848                                         const char *pos)
3849 {
3850         u32 *dst;
3851         struct hostapd_ip_addr addr;
3852
3853         if (hostapd_parse_ip_addr(pos, &addr) < 0)
3854                 return -1;
3855         if (addr.af != AF_INET)
3856                 return -1;
3857
3858         dst = (u32 *) (((u8 *) config) + (long) data->param1);
3859         os_memcpy(dst, &addr.u.v4.s_addr, 4);
3860         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3861                    WPA_GET_BE32((u8 *) dst));
3862
3863         return 0;
3864 }
3865 #endif /* CONFIG_P2P */
3866
3867
3868 static int wpa_config_process_country(const struct global_parse_data *data,
3869                                       struct wpa_config *config, int line,
3870                                       const char *pos)
3871 {
3872         if (!pos[0] || !pos[1]) {
3873                 wpa_printf(MSG_DEBUG, "Invalid country set");
3874                 return -1;
3875         }
3876         config->country[0] = pos[0];
3877         config->country[1] = pos[1];
3878         wpa_printf(MSG_DEBUG, "country='%c%c'",
3879                    config->country[0], config->country[1]);
3880         return 0;
3881 }
3882
3883
3884 static int wpa_config_process_load_dynamic_eap(
3885         const struct global_parse_data *data, struct wpa_config *config,
3886         int line, const char *so)
3887 {
3888         int ret;
3889         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3890         ret = eap_peer_method_load(so);
3891         if (ret == -2) {
3892                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3893                            "reloading.");
3894         } else if (ret) {
3895                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3896                            "method '%s'.", line, so);
3897                 return -1;
3898         }
3899
3900         return 0;
3901 }
3902
3903
3904 #ifdef CONFIG_WPS
3905
3906 static int wpa_config_process_uuid(const struct global_parse_data *data,
3907                                    struct wpa_config *config, int line,
3908                                    const char *pos)
3909 {
3910         char buf[40];
3911         if (uuid_str2bin(pos, config->uuid)) {
3912                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3913                 return -1;
3914         }
3915         uuid_bin2str(config->uuid, buf, sizeof(buf));
3916         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3917         return 0;
3918 }
3919
3920
3921 static int wpa_config_process_device_type(
3922         const struct global_parse_data *data,
3923         struct wpa_config *config, int line, const char *pos)
3924 {
3925         return wps_dev_type_str2bin(pos, config->device_type);
3926 }
3927
3928
3929 static int wpa_config_process_os_version(const struct global_parse_data *data,
3930                                          struct wpa_config *config, int line,
3931                                          const char *pos)
3932 {
3933         if (hexstr2bin(pos, config->os_version, 4)) {
3934                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3935                 return -1;
3936         }
3937         wpa_printf(MSG_DEBUG, "os_version=%08x",
3938                    WPA_GET_BE32(config->os_version));
3939         return 0;
3940 }
3941
3942
3943 static int wpa_config_process_wps_vendor_ext_m1(
3944         const struct global_parse_data *data,
3945         struct wpa_config *config, int line, const char *pos)
3946 {
3947         struct wpabuf *tmp;
3948         int len = os_strlen(pos) / 2;
3949         u8 *p;
3950
3951         if (!len) {
3952                 wpa_printf(MSG_ERROR, "Line %d: "
3953                            "invalid wps_vendor_ext_m1", line);
3954                 return -1;
3955         }
3956
3957         tmp = wpabuf_alloc(len);
3958         if (tmp) {
3959                 p = wpabuf_put(tmp, len);
3960
3961                 if (hexstr2bin(pos, p, len)) {
3962                         wpa_printf(MSG_ERROR, "Line %d: "
3963                                    "invalid wps_vendor_ext_m1", line);
3964                         wpabuf_free(tmp);
3965                         return -1;
3966                 }
3967
3968                 wpabuf_free(config->wps_vendor_ext_m1);
3969                 config->wps_vendor_ext_m1 = tmp;
3970         } else {
3971                 wpa_printf(MSG_ERROR, "Can not allocate "
3972                            "memory for wps_vendor_ext_m1");
3973                 return -1;
3974         }
3975
3976         return 0;
3977 }
3978
3979 #endif /* CONFIG_WPS */
3980
3981 #ifdef CONFIG_P2P
3982 static int wpa_config_process_sec_device_type(
3983         const struct global_parse_data *data,
3984         struct wpa_config *config, int line, const char *pos)
3985 {
3986         int idx;
3987
3988         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3989                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3990                            "items", line);
3991                 return -1;
3992         }
3993
3994         idx = config->num_sec_device_types;
3995
3996         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3997                 return -1;
3998
3999         config->num_sec_device_types++;
4000         return 0;
4001 }
4002
4003
4004 static int wpa_config_process_p2p_pref_chan(
4005         const struct global_parse_data *data,
4006         struct wpa_config *config, int line, const char *pos)
4007 {
4008         struct p2p_channel *pref = NULL, *n;
4009         unsigned int num = 0;
4010         const char *pos2;
4011         u8 op_class, chan;
4012
4013         /* format: class:chan,class:chan,... */
4014
4015         while (*pos) {
4016                 op_class = atoi(pos);
4017                 pos2 = os_strchr(pos, ':');
4018                 if (pos2 == NULL)
4019                         goto fail;
4020                 pos2++;
4021                 chan = atoi(pos2);
4022
4023                 n = os_realloc_array(pref, num + 1,
4024                                      sizeof(struct p2p_channel));
4025                 if (n == NULL)
4026                         goto fail;
4027                 pref = n;
4028                 pref[num].op_class = op_class;
4029                 pref[num].chan = chan;
4030                 num++;
4031
4032                 pos = os_strchr(pos2, ',');
4033                 if (pos == NULL)
4034                         break;
4035                 pos++;
4036         }
4037
4038         os_free(config->p2p_pref_chan);
4039         config->p2p_pref_chan = pref;
4040         config->num_p2p_pref_chan = num;
4041         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
4042                     (u8 *) config->p2p_pref_chan,
4043                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
4044
4045         return 0;
4046
4047 fail:
4048         os_free(pref);
4049         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
4050         return -1;
4051 }
4052
4053
4054 static int wpa_config_process_p2p_no_go_freq(
4055         const struct global_parse_data *data,
4056         struct wpa_config *config, int line, const char *pos)
4057 {
4058         int ret;
4059
4060         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
4061         if (ret < 0) {
4062                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
4063                 return -1;
4064         }
4065
4066         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
4067                    config->p2p_no_go_freq.num);
4068
4069         return 0;
4070 }
4071
4072 #endif /* CONFIG_P2P */
4073
4074
4075 static int wpa_config_process_hessid(
4076         const struct global_parse_data *data,
4077         struct wpa_config *config, int line, const char *pos)
4078 {
4079         if (hwaddr_aton2(pos, config->hessid) < 0) {
4080                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
4081                            line, pos);
4082                 return -1;
4083         }
4084
4085         return 0;
4086 }
4087
4088
4089 static int wpa_config_process_sae_groups(
4090         const struct global_parse_data *data,
4091         struct wpa_config *config, int line, const char *pos)
4092 {
4093         int *groups = wpa_config_parse_int_array(pos);
4094         if (groups == NULL) {
4095                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
4096                            line, pos);
4097                 return -1;
4098         }
4099
4100         os_free(config->sae_groups);
4101         config->sae_groups = groups;
4102
4103         return 0;
4104 }
4105
4106
4107 static int wpa_config_process_ap_vendor_elements(
4108         const struct global_parse_data *data,
4109         struct wpa_config *config, int line, const char *pos)
4110 {
4111         struct wpabuf *tmp;
4112         int len = os_strlen(pos) / 2;
4113         u8 *p;
4114
4115         if (!len) {
4116                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
4117                            line);
4118                 return -1;
4119         }
4120
4121         tmp = wpabuf_alloc(len);
4122         if (tmp) {
4123                 p = wpabuf_put(tmp, len);
4124
4125                 if (hexstr2bin(pos, p, len)) {
4126                         wpa_printf(MSG_ERROR, "Line %d: invalid "
4127                                    "ap_vendor_elements", line);
4128                         wpabuf_free(tmp);
4129                         return -1;
4130                 }
4131
4132                 wpabuf_free(config->ap_vendor_elements);
4133                 config->ap_vendor_elements = tmp;
4134         } else {
4135                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4136                            "ap_vendor_elements");
4137                 return -1;
4138         }
4139
4140         return 0;
4141 }
4142
4143
4144 #ifdef CONFIG_CTRL_IFACE
4145 static int wpa_config_process_no_ctrl_interface(
4146         const struct global_parse_data *data,
4147         struct wpa_config *config, int line, const char *pos)
4148 {
4149         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4150         os_free(config->ctrl_interface);
4151         config->ctrl_interface = NULL;
4152         return 0;
4153 }
4154 #endif /* CONFIG_CTRL_IFACE */
4155
4156
4157 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4158                               long offset, char *buf, size_t buflen,
4159                               int pretty_print)
4160 {
4161         int *val = (int *) (((u8 *) config) + (long) offset);
4162
4163         if (pretty_print)
4164                 return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4165         return os_snprintf(buf, buflen, "%d", *val);
4166 }
4167
4168
4169 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4170                               long offset, char *buf, size_t buflen,
4171                               int pretty_print)
4172 {
4173         char **val = (char **) (((u8 *) config) + (long) offset);
4174         int res;
4175
4176         if (pretty_print)
4177                 res = os_snprintf(buf, buflen, "%s=%s\n", name,
4178                                   *val ? *val : "null");
4179         else if (!*val)
4180                 return -1;
4181         else
4182                 res = os_snprintf(buf, buflen, "%s", *val);
4183         if (os_snprintf_error(buflen, res))
4184                 res = -1;
4185
4186         return res;
4187 }
4188
4189
4190 #ifdef CONFIG_P2P
4191 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4192                                long offset, char *buf, size_t buflen,
4193                                int pretty_print)
4194 {
4195         void *val = ((u8 *) config) + (long) offset;
4196         int res;
4197         char addr[INET_ADDRSTRLEN];
4198
4199         if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4200                 return -1;
4201
4202         if (pretty_print)
4203                 res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4204         else
4205                 res = os_snprintf(buf, buflen, "%s", addr);
4206
4207         if (os_snprintf_error(buflen, res))
4208                 res = -1;
4209
4210         return res;
4211 }
4212 #endif /* CONFIG_P2P */
4213
4214
4215 #ifdef OFFSET
4216 #undef OFFSET
4217 #endif /* OFFSET */
4218 /* OFFSET: Get offset of a variable within the wpa_config structure */
4219 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4220
4221 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4222 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4223 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4224 #define INT(f) _INT(f), NULL, NULL
4225 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4226 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4227 #define STR(f) _STR(f), NULL, NULL
4228 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4229 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4230 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4,  \
4231         OFFSET(f), NULL, NULL
4232
4233 static const struct global_parse_data global_fields[] = {
4234 #ifdef CONFIG_CTRL_IFACE
4235         { STR(ctrl_interface), 0 },
4236         { FUNC_NO_VAR(no_ctrl_interface), 0 },
4237         { STR(ctrl_interface_group), 0 } /* deprecated */,
4238 #endif /* CONFIG_CTRL_IFACE */
4239 #ifdef CONFIG_MACSEC
4240         { INT_RANGE(eapol_version, 1, 3), 0 },
4241 #else /* CONFIG_MACSEC */
4242         { INT_RANGE(eapol_version, 1, 2), 0 },
4243 #endif /* CONFIG_MACSEC */
4244         { INT(ap_scan), 0 },
4245         { FUNC(bgscan), 0 },
4246 #ifdef CONFIG_MESH
4247         { INT(user_mpm), 0 },
4248         { INT_RANGE(max_peer_links, 0, 255), 0 },
4249         { INT(mesh_max_inactivity), 0 },
4250         { INT(dot11RSNASAERetransPeriod), 0 },
4251 #endif /* CONFIG_MESH */
4252         { INT(disable_scan_offload), 0 },
4253         { INT(fast_reauth), 0 },
4254         { STR(opensc_engine_path), 0 },
4255         { STR(pkcs11_engine_path), 0 },
4256         { STR(pkcs11_module_path), 0 },
4257         { STR(openssl_ciphers), 0 },
4258         { STR(pcsc_reader), 0 },
4259         { STR(pcsc_pin), 0 },
4260         { INT(external_sim), 0 },
4261         { STR(driver_param), 0 },
4262         { INT(dot11RSNAConfigPMKLifetime), 0 },
4263         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4264         { INT(dot11RSNAConfigSATimeout), 0 },
4265 #ifndef CONFIG_NO_CONFIG_WRITE
4266         { INT(update_config), 0 },
4267 #endif /* CONFIG_NO_CONFIG_WRITE */
4268         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4269 #ifdef CONFIG_WPS
4270         { FUNC(uuid), CFG_CHANGED_UUID },
4271         { STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4272           CFG_CHANGED_DEVICE_NAME },
4273         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4274         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4275         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4276         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4277         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4278         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4279         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4280         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4281         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4282 #endif /* CONFIG_WPS */
4283 #ifdef CONFIG_P2P
4284         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4285         { INT(p2p_listen_reg_class), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4286         { INT(p2p_listen_channel), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4287         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4288         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4289         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4290         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4291         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4292         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4293         { INT(p2p_group_idle), 0 },
4294         { INT_RANGE(p2p_go_freq_change_policy, 0, P2P_GO_FREQ_MOVE_MAX), 0 },
4295         { INT_RANGE(p2p_passphrase_len, 8, 63),
4296           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4297         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4298         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4299         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4300         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4301         { INT(p2p_go_ht40), 0 },
4302         { INT(p2p_go_vht), 0 },
4303         { INT(p2p_disabled), 0 },
4304         { INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4305         { INT(p2p_no_group_iface), 0 },
4306         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4307         { IPV4(ip_addr_go), 0 },
4308         { IPV4(ip_addr_mask), 0 },
4309         { IPV4(ip_addr_start), 0 },
4310         { IPV4(ip_addr_end), 0 },
4311         { INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4312 #endif /* CONFIG_P2P */
4313         { FUNC(country), CFG_CHANGED_COUNTRY },
4314         { INT(bss_max_count), 0 },
4315         { INT(bss_expiration_age), 0 },
4316         { INT(bss_expiration_scan_count), 0 },
4317         { INT_RANGE(filter_ssids, 0, 1), 0 },
4318         { INT_RANGE(filter_rssi, -100, 0), 0 },
4319         { INT(max_num_sta), 0 },
4320         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4321 #ifdef CONFIG_HS20
4322         { INT_RANGE(hs20, 0, 1), 0 },
4323 #endif /* CONFIG_HS20 */
4324         { INT_RANGE(interworking, 0, 1), 0 },
4325         { FUNC(hessid), 0 },
4326         { INT_RANGE(access_network_type, 0, 15), 0 },
4327         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4328         { STR(autoscan), 0 },
4329         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4330           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4331         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4332         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4333         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4334         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4335         { INT(p2p_go_max_inactivity), 0 },
4336         { INT_RANGE(auto_interworking, 0, 1), 0 },
4337         { INT(okc), 0 },
4338         { INT(pmf), 0 },
4339         { FUNC(sae_groups), 0 },
4340         { INT(dtim_period), 0 },
4341         { INT(beacon_int), 0 },
4342         { FUNC(ap_vendor_elements), 0 },
4343         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4344         { FUNC(freq_list), 0 },
4345         { INT(scan_cur_freq), 0 },
4346         { INT(sched_scan_interval), 0 },
4347         { INT(tdls_external_control), 0},
4348         { STR(osu_dir), 0 },
4349         { STR(wowlan_triggers), 0 },
4350         { INT(p2p_search_delay), 0},
4351         { INT(mac_addr), 0 },
4352         { INT(rand_addr_lifetime), 0 },
4353         { INT(preassoc_mac_addr), 0 },
4354         { INT(key_mgmt_offload), 0},
4355         { INT(passive_scan), 0 },
4356         { INT(reassoc_same_bss_optim), 0 },
4357         { INT(wps_priority), 0},
4358 #ifdef CONFIG_FST
4359         { STR_RANGE(fst_group_id, 1, FST_MAX_GROUP_ID_LEN), 0 },
4360         { INT_RANGE(fst_priority, 1, FST_MAX_PRIO_VALUE), 0 },
4361         { INT_RANGE(fst_llt, 1, FST_MAX_LLT_MS), 0 },
4362 #endif /* CONFIG_FST */
4363         { INT_RANGE(wpa_rsc_relaxation, 0, 1), 0 },
4364         { STR(sched_scan_plans), CFG_CHANGED_SCHED_SCAN_PLANS },
4365 #ifdef CONFIG_MBO
4366         { STR(non_pref_chan), 0 },
4367         { INT_RANGE(mbo_cell_capa, MBO_CELL_CAPA_AVAILABLE,
4368                     MBO_CELL_CAPA_NOT_SUPPORTED), 0 },
4369 #endif /*CONFIG_MBO */
4370         { INT(gas_address3), 0 },
4371 };
4372
4373 #undef FUNC
4374 #undef _INT
4375 #undef INT
4376 #undef INT_RANGE
4377 #undef _STR
4378 #undef STR
4379 #undef STR_RANGE
4380 #undef BIN
4381 #undef IPV4
4382 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4383
4384
4385 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4386 {
4387         int result = 0;
4388         size_t i;
4389
4390         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4391                 const struct global_parse_data *field = &global_fields[i];
4392                 int tmp;
4393
4394                 if (!field->get)
4395                         continue;
4396
4397                 tmp = field->get(field->name, config, (long) field->param1,
4398                                  buf, buflen, 1);
4399                 if (tmp < 0)
4400                         return -1;
4401                 buf += tmp;
4402                 buflen -= tmp;
4403                 result += tmp;
4404         }
4405         return result;
4406 }
4407
4408
4409 int wpa_config_get_value(const char *name, struct wpa_config *config,
4410                          char *buf, size_t buflen)
4411 {
4412         size_t i;
4413
4414         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4415                 const struct global_parse_data *field = &global_fields[i];
4416
4417                 if (os_strcmp(name, field->name) != 0)
4418                         continue;
4419                 if (!field->get)
4420                         break;
4421                 return field->get(name, config, (long) field->param1,
4422                                   buf, buflen, 0);
4423         }
4424
4425         return -1;
4426 }
4427
4428
4429 int wpa_config_get_num_global_field_names(void)
4430 {
4431         return NUM_GLOBAL_FIELDS;
4432 }
4433
4434
4435 const char * wpa_config_get_global_field_name(unsigned int i, int *no_var)
4436 {
4437         if (i >= NUM_GLOBAL_FIELDS)
4438                 return NULL;
4439
4440         if (no_var)
4441                 *no_var = !global_fields[i].param1;
4442         return global_fields[i].name;
4443 }
4444
4445
4446 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4447 {
4448         size_t i;
4449         int ret = 0;
4450
4451         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4452                 const struct global_parse_data *field = &global_fields[i];
4453                 size_t flen = os_strlen(field->name);
4454                 if (os_strncmp(pos, field->name, flen) != 0 ||
4455                     pos[flen] != '=')
4456                         continue;
4457
4458                 if (field->parser(field, config, line, pos + flen + 1)) {
4459                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4460                                    "parse '%s'.", line, pos);
4461                         ret = -1;
4462                 }
4463                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4464                         config->wps_nfc_pw_from_config = 1;
4465                 config->changed_parameters |= field->changed_flag;
4466                 break;
4467         }
4468         if (i == NUM_GLOBAL_FIELDS) {
4469 #ifdef CONFIG_AP
4470                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4471                         char *tmp = os_strchr(pos, '=');
4472                         if (tmp == NULL) {
4473                                 if (line < 0)
4474                                         return -1;
4475                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4476                                            "'%s'", line, pos);
4477                                 return -1;
4478                         }
4479                         *tmp++ = '\0';
4480                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4481                                                   tmp)) {
4482                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4483                                            "AC item", line);
4484                                 return -1;
4485                         }
4486                 }
4487 #endif /* CONFIG_AP */
4488                 if (line < 0)
4489                         return -1;
4490                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4491                            line, pos);
4492                 ret = -1;
4493         }
4494
4495         return ret;
4496 }