contrib/wpa/wpa_supplicant/config.c

   1 /*
   2  * WPA Supplicant / Configuration parser and common functions
   3  * Copyright (c) 2003-2018, 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 "common/ieee802_1x_defs.h"
  15 #include "crypto/sha1.h"
  16 #include "rsn_supp/wpa.h"
  17 #include "eap_peer/eap.h"
  18 #include "p2p/p2p.h"
  19 #include "fst/fst.h"
  20 #include "config.h"
  21
  22
  23 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
  24 #define NO_CONFIG_WRITE
  25 #endif
  26
  27 /*
  28  * Structure for network configuration parsing. This data is used to implement
  29  * a generic parser for each network block variable. The table of configuration
  30  * variables is defined below in this file (ssid_fields[]).
  31  */
  32 struct parse_data {
  33         /* Configuration variable name */
  34         char *name;
  35
  36         /* Parser function for this variable. The parser functions return 0 or 1
  37          * to indicate success. Value 0 indicates that the parameter value may
  38          * have changed while value 1 means that the value did not change.
  39          * Error cases (failure to parse the string) are indicated by returning
  40          * -1. */
  41         int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
  42                       int line, const char *value);
  43
  44 #ifndef NO_CONFIG_WRITE
  45         /* Writer function (i.e., to get the variable in text format from
  46          * internal presentation). */
  47         char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
  48 #endif /* NO_CONFIG_WRITE */
  49
  50         /* Variable specific parameters for the parser. */
  51         void *param1, *param2, *param3, *param4;
  52
  53         /* 0 = this variable can be included in debug output and ctrl_iface
  54          * 1 = this variable contains key/private data and it must not be
  55          *     included in debug output unless explicitly requested. In
  56          *     addition, this variable will not be readable through the
  57          *     ctrl_iface.
  58          */
  59         int key_data;
  60 };
  61
  62
  63 static int wpa_config_parse_str(const struct parse_data *data,
  64                                 struct wpa_ssid *ssid,
  65                                 int line, const char *value)
  66 {
  67         size_t res_len, *dst_len, prev_len;
  68         char **dst, *tmp;
  69
  70         if (os_strcmp(value, "NULL") == 0) {
  71                 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
  72                            data->name);
  73                 tmp = NULL;
  74                 res_len = 0;
  75                 goto set;
  76         }
  77
  78         tmp = wpa_config_parse_string(value, &res_len);
  79         if (tmp == NULL) {
  80                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
  81                            line, data->name,
  82                            data->key_data ? "[KEY DATA REMOVED]" : value);
  83                 return -1;
  84         }
  85
  86         if (data->key_data) {
  87                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
  88                                       (u8 *) tmp, res_len);
  89         } else {
  90                 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
  91                                   (u8 *) tmp, res_len);
  92         }
  93
  94         if (data->param3 && res_len < (size_t) data->param3) {
  95                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
  96                            "min_len=%ld)", line, data->name,
  97                            (unsigned long) res_len, (long) data->param3);
  98                 os_free(tmp);
  99                 return -1;
 100         }
 101
 102         if (data->param4 && res_len > (size_t) data->param4) {
 103                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
 104                            "max_len=%ld)", line, data->name,
 105                            (unsigned long) res_len, (long) data->param4);
 106                 os_free(tmp);
 107                 return -1;
 108         }
 109
 110 set:
 111         dst = (char **) (((u8 *) ssid) + (long) data->param1);
 112         dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
 113
 114         if (data->param2)
 115                 prev_len = *dst_len;
 116         else if (*dst)
 117                 prev_len = os_strlen(*dst);
 118         else
 119                 prev_len = 0;
 120         if ((*dst == NULL && tmp == NULL) ||
 121             (*dst && tmp && prev_len == res_len &&
 122              os_memcmp(*dst, tmp, res_len) == 0)) {
 123                 /* No change to the previously configured value */
 124                 os_free(tmp);
 125                 return 1;
 126         }
 127
 128         os_free(*dst);
 129         *dst = tmp;
 130         if (data->param2)
 131                 *dst_len = res_len;
 132
 133         return 0;
 134 }
 135
 136
 137 #ifndef NO_CONFIG_WRITE
 138 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
 139 {
 140         char *buf;
 141
 142         buf = os_malloc(len + 3);
 143         if (buf == NULL)
 144                 return NULL;
 145         buf[0] = '"';
 146         os_memcpy(buf + 1, value, len);
 147         buf[len + 1] = '"';
 148         buf[len + 2] = '\0';
 149
 150         return buf;
 151 }
 152
 153
 154 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
 155 {
 156         char *buf;
 157
 158         buf = os_zalloc(2 * len + 1);
 159         if (buf == NULL)
 160                 return NULL;
 161         wpa_snprintf_hex(buf, 2 * len + 1, value, len);
 162
 163         return buf;
 164 }
 165
 166
 167 static char * wpa_config_write_string(const u8 *value, size_t len)
 168 {
 169         if (value == NULL)
 170                 return NULL;
 171
 172         if (is_hex(value, len))
 173                 return wpa_config_write_string_hex(value, len);
 174         else
 175                 return wpa_config_write_string_ascii(value, len);
 176 }
 177
 178
 179 static char * wpa_config_write_str(const struct parse_data *data,
 180                                    struct wpa_ssid *ssid)
 181 {
 182         size_t len;
 183         char **src;
 184
 185         src = (char **) (((u8 *) ssid) + (long) data->param1);
 186         if (*src == NULL)
 187                 return NULL;
 188
 189         if (data->param2)
 190                 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
 191         else
 192                 len = os_strlen(*src);
 193
 194         return wpa_config_write_string((const u8 *) *src, len);
 195 }
 196 #endif /* NO_CONFIG_WRITE */
 197
 198
 199 static int wpa_config_parse_int(const struct parse_data *data,
 200                                 struct wpa_ssid *ssid,
 201                                 int line, const char *value)
 202 {
 203         int val, *dst;
 204         char *end;
 205
 206         dst = (int *) (((u8 *) ssid) + (long) data->param1);
 207         val = strtol(value, &end, 0);
 208         if (*end) {
 209                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
 210                            line, value);
 211                 return -1;
 212         }
 213
 214         if (*dst == val)
 215                 return 1;
 216         *dst = val;
 217         wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
 218
 219         if (data->param3 && *dst < (long) data->param3) {
 220                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
 221                            "min_value=%ld)", line, data->name, *dst,
 222                            (long) data->param3);
 223                 *dst = (long) data->param3;
 224                 return -1;
 225         }
 226
 227         if (data->param4 && *dst > (long) data->param4) {
 228                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
 229                            "max_value=%ld)", line, data->name, *dst,
 230                            (long) data->param4);
 231                 *dst = (long) data->param4;
 232                 return -1;
 233         }
 234
 235         return 0;
 236 }
 237
 238
 239 #ifndef NO_CONFIG_WRITE
 240 static char * wpa_config_write_int(const struct parse_data *data,
 241                                    struct wpa_ssid *ssid)
 242 {
 243         int *src, res;
 244         char *value;
 245
 246         src = (int *) (((u8 *) ssid) + (long) data->param1);
 247
 248         value = os_malloc(20);
 249         if (value == NULL)
 250                 return NULL;
 251         res = os_snprintf(value, 20, "%d", *src);
 252         if (os_snprintf_error(20, res)) {
 253                 os_free(value);
 254                 return NULL;
 255         }
 256         value[20 - 1] = '\0';
 257         return value;
 258 }
 259 #endif /* NO_CONFIG_WRITE */
 260
 261
 262 static int wpa_config_parse_addr_list(const struct parse_data *data,
 263                                       int line, const char *value,
 264                                       u8 **list, size_t *num, char *name,
 265                                       u8 abort_on_error, u8 masked)
 266 {
 267         const char *pos;
 268         u8 *buf, *n, addr[2 * ETH_ALEN];
 269         size_t count;
 270
 271         buf = NULL;
 272         count = 0;
 273
 274         pos = value;
 275         while (pos && *pos) {
 276                 while (*pos == ' ')
 277                         pos++;
 278
 279                 if (hwaddr_masked_aton(pos, addr, &addr[ETH_ALEN], masked)) {
 280                         if (abort_on_error || count == 0) {
 281                                 wpa_printf(MSG_ERROR,
 282                                            "Line %d: Invalid %s address '%s'",
 283                                            line, name, value);
 284                                 os_free(buf);
 285                                 return -1;
 286                         }
 287                         /* continue anyway since this could have been from a
 288                          * truncated configuration file line */
 289                         wpa_printf(MSG_INFO,
 290                                    "Line %d: Ignore likely truncated %s address '%s'",
 291                                    line, name, pos);
 292                 } else {
 293                         n = os_realloc_array(buf, count + 1, 2 * ETH_ALEN);
 294                         if (n == NULL) {
 295                                 os_free(buf);
 296                                 return -1;
 297                         }
 298                         buf = n;
 299                         os_memmove(buf + 2 * ETH_ALEN, buf,
 300                                    count * 2 * ETH_ALEN);
 301                         os_memcpy(buf, addr, 2 * ETH_ALEN);
 302                         count++;
 303                         wpa_printf(MSG_MSGDUMP,
 304                                    "%s: addr=" MACSTR " mask=" MACSTR,
 305                                    name, MAC2STR(addr),
 306                                    MAC2STR(&addr[ETH_ALEN]));
 307                 }
 308
 309                 pos = os_strchr(pos, ' ');
 310         }
 311
 312         os_free(*list);
 313         *list = buf;
 314         *num = count;
 315
 316         return 0;
 317 }
 318
 319
 320 #ifndef NO_CONFIG_WRITE
 321 static char * wpa_config_write_addr_list(const struct parse_data *data,
 322                                          const u8 *list, size_t num, char *name)
 323 {
 324         char *value, *end, *pos;
 325         int res;
 326         size_t i;
 327
 328         if (list == NULL || num == 0)
 329                 return NULL;
 330
 331         value = os_malloc(2 * 20 * num);
 332         if (value == NULL)
 333                 return NULL;
 334         pos = value;
 335         end = value + 2 * 20 * num;
 336
 337         for (i = num; i > 0; i--) {
 338                 const u8 *a = list + (i - 1) * 2 * ETH_ALEN;
 339                 const u8 *m = a + ETH_ALEN;
 340
 341                 if (i < num)
 342                         *pos++ = ' ';
 343                 res = hwaddr_mask_txt(pos, end - pos, a, m);
 344                 if (res < 0) {
 345                         os_free(value);
 346                         return NULL;
 347                 }
 348                 pos += res;
 349         }
 350
 351         return value;
 352 }
 353 #endif /* NO_CONFIG_WRITE */
 354
 355 static int wpa_config_parse_bssid(const struct parse_data *data,
 356                                   struct wpa_ssid *ssid, int line,
 357                                   const char *value)
 358 {
 359         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
 360             os_strcmp(value, "any") == 0) {
 361                 ssid->bssid_set = 0;
 362                 wpa_printf(MSG_MSGDUMP, "BSSID any");
 363                 return 0;
 364         }
 365         if (hwaddr_aton(value, ssid->bssid)) {
 366                 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
 367                            line, value);
 368                 return -1;
 369         }
 370         ssid->bssid_set = 1;
 371         wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
 372         return 0;
 373 }
 374
 375
 376 #ifndef NO_CONFIG_WRITE
 377 static char * wpa_config_write_bssid(const struct parse_data *data,
 378                                      struct wpa_ssid *ssid)
 379 {
 380         char *value;
 381         int res;
 382
 383         if (!ssid->bssid_set)
 384                 return NULL;
 385
 386         value = os_malloc(20);
 387         if (value == NULL)
 388                 return NULL;
 389         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
 390         if (os_snprintf_error(20, res)) {
 391                 os_free(value);
 392                 return NULL;
 393         }
 394         value[20 - 1] = '\0';
 395         return value;
 396 }
 397 #endif /* NO_CONFIG_WRITE */
 398
 399
 400 static int wpa_config_parse_bssid_hint(const struct parse_data *data,
 401                                        struct wpa_ssid *ssid, int line,
 402                                        const char *value)
 403 {
 404         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
 405             os_strcmp(value, "any") == 0) {
 406                 ssid->bssid_hint_set = 0;
 407                 wpa_printf(MSG_MSGDUMP, "BSSID hint any");
 408                 return 0;
 409         }
 410         if (hwaddr_aton(value, ssid->bssid_hint)) {
 411                 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID hint '%s'.",
 412                            line, value);
 413                 return -1;
 414         }
 415         ssid->bssid_hint_set = 1;
 416         wpa_hexdump(MSG_MSGDUMP, "BSSID hint", ssid->bssid_hint, ETH_ALEN);
 417         return 0;
 418 }
 419
 420
 421 #ifndef NO_CONFIG_WRITE
 422 static char * wpa_config_write_bssid_hint(const struct parse_data *data,
 423                                           struct wpa_ssid *ssid)
 424 {
 425         char *value;
 426         int res;
 427
 428         if (!ssid->bssid_hint_set)
 429                 return NULL;
 430
 431         value = os_malloc(20);
 432         if (!value)
 433                 return NULL;
 434         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid_hint));
 435         if (os_snprintf_error(20, res)) {
 436                 os_free(value);
 437                 return NULL;
 438         }
 439         return value;
 440 }
 441 #endif /* NO_CONFIG_WRITE */
 442
 443
 444 static int wpa_config_parse_bssid_blacklist(const struct parse_data *data,
 445                                             struct wpa_ssid *ssid, int line,
 446                                             const char *value)
 447 {
 448         return wpa_config_parse_addr_list(data, line, value,
 449                                           &ssid->bssid_blacklist,
 450                                           &ssid->num_bssid_blacklist,
 451                                           "bssid_blacklist", 1, 1);
 452 }
 453
 454
 455 #ifndef NO_CONFIG_WRITE
 456 static char * wpa_config_write_bssid_blacklist(const struct parse_data *data,
 457                                                struct wpa_ssid *ssid)
 458 {
 459         return wpa_config_write_addr_list(data, ssid->bssid_blacklist,
 460                                           ssid->num_bssid_blacklist,
 461                                           "bssid_blacklist");
 462 }
 463 #endif /* NO_CONFIG_WRITE */
 464
 465
 466 static int wpa_config_parse_bssid_whitelist(const struct parse_data *data,
 467                                             struct wpa_ssid *ssid, int line,
 468                                             const char *value)
 469 {
 470         return wpa_config_parse_addr_list(data, line, value,
 471                                           &ssid->bssid_whitelist,
 472                                           &ssid->num_bssid_whitelist,
 473                                           "bssid_whitelist", 1, 1);
 474 }
 475
 476
 477 #ifndef NO_CONFIG_WRITE
 478 static char * wpa_config_write_bssid_whitelist(const struct parse_data *data,
 479                                                struct wpa_ssid *ssid)
 480 {
 481         return wpa_config_write_addr_list(data, ssid->bssid_whitelist,
 482                                           ssid->num_bssid_whitelist,
 483                                           "bssid_whitelist");
 484 }
 485 #endif /* NO_CONFIG_WRITE */
 486
 487
 488 static int wpa_config_parse_psk(const struct parse_data *data,
 489                                 struct wpa_ssid *ssid, int line,
 490                                 const char *value)
 491 {
 492 #ifdef CONFIG_EXT_PASSWORD
 493         if (os_strncmp(value, "ext:", 4) == 0) {
 494                 str_clear_free(ssid->passphrase);
 495                 ssid->passphrase = NULL;
 496                 ssid->psk_set = 0;
 497                 os_free(ssid->ext_psk);
 498                 ssid->ext_psk = os_strdup(value + 4);
 499                 if (ssid->ext_psk == NULL)
 500                         return -1;
 501                 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
 502                            ssid->ext_psk);
 503                 return 0;
 504         }
 505 #endif /* CONFIG_EXT_PASSWORD */
 506
 507         if (*value == '"') {
 508 #ifndef CONFIG_NO_PBKDF2
 509                 const char *pos;
 510                 size_t len;
 511
 512                 value++;
 513                 pos = os_strrchr(value, '"');
 514                 if (pos)
 515                         len = pos - value;
 516                 else
 517                         len = os_strlen(value);
 518                 if (len < 8 || len > 63) {
 519                         wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
 520                                    "length %lu (expected: 8..63) '%s'.",
 521                                    line, (unsigned long) len, value);
 522                         return -1;
 523                 }
 524                 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
 525                                       (u8 *) value, len);
 526                 if (has_ctrl_char((u8 *) value, len)) {
 527                         wpa_printf(MSG_ERROR,
 528                                    "Line %d: Invalid passphrase character",
 529                                    line);
 530                         return -1;
 531                 }
 532                 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
 533                     os_memcmp(ssid->passphrase, value, len) == 0) {
 534                         /* No change to the previously configured value */
 535                         return 1;
 536                 }
 537                 ssid->psk_set = 0;
 538                 str_clear_free(ssid->passphrase);
 539                 ssid->passphrase = dup_binstr(value, len);
 540                 if (ssid->passphrase == NULL)
 541                         return -1;
 542                 return 0;
 543 #else /* CONFIG_NO_PBKDF2 */
 544                 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
 545                            "supported.", line);
 546                 return -1;
 547 #endif /* CONFIG_NO_PBKDF2 */
 548         }
 549
 550         if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
 551             value[PMK_LEN * 2] != '\0') {
 552                 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
 553                            line, value);
 554                 return -1;
 555         }
 556
 557         str_clear_free(ssid->passphrase);
 558         ssid->passphrase = NULL;
 559
 560         ssid->psk_set = 1;
 561         wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
 562         return 0;
 563 }
 564
 565
 566 #ifndef NO_CONFIG_WRITE
 567 static char * wpa_config_write_psk(const struct parse_data *data,
 568                                    struct wpa_ssid *ssid)
 569 {
 570 #ifdef CONFIG_EXT_PASSWORD
 571         if (ssid->ext_psk) {
 572                 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
 573                 char *buf = os_malloc(len);
 574                 int res;
 575
 576                 if (buf == NULL)
 577                         return NULL;
 578                 res = os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
 579                 if (os_snprintf_error(len, res)) {
 580                         os_free(buf);
 581                         buf = NULL;
 582                 }
 583                 return buf;
 584         }
 585 #endif /* CONFIG_EXT_PASSWORD */
 586
 587         if (ssid->passphrase)
 588                 return wpa_config_write_string_ascii(
 589                         (const u8 *) ssid->passphrase,
 590                         os_strlen(ssid->passphrase));
 591
 592         if (ssid->psk_set)
 593                 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
 594
 595         return NULL;
 596 }
 597 #endif /* NO_CONFIG_WRITE */
 598
 599
 600 static int wpa_config_parse_proto(const struct parse_data *data,
 601                                   struct wpa_ssid *ssid, int line,
 602                                   const char *value)
 603 {
 604         int val = 0, last, errors = 0;
 605         char *start, *end, *buf;
 606
 607         buf = os_strdup(value);
 608         if (buf == NULL)
 609                 return -1;
 610         start = buf;
 611
 612         while (*start != '\0') {
 613                 while (*start == ' ' || *start == '\t')
 614                         start++;
 615                 if (*start == '\0')
 616                         break;
 617                 end = start;
 618                 while (*end != ' ' && *end != '\t' && *end != '\0')
 619                         end++;
 620                 last = *end == '\0';
 621                 *end = '\0';
 622                 if (os_strcmp(start, "WPA") == 0)
 623                         val |= WPA_PROTO_WPA;
 624                 else if (os_strcmp(start, "RSN") == 0 ||
 625                          os_strcmp(start, "WPA2") == 0)
 626                         val |= WPA_PROTO_RSN;
 627                 else if (os_strcmp(start, "OSEN") == 0)
 628                         val |= WPA_PROTO_OSEN;
 629                 else {
 630                         wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
 631                                    line, start);
 632                         errors++;
 633                 }
 634
 635                 if (last)
 636                         break;
 637                 start = end + 1;
 638         }
 639         os_free(buf);
 640
 641         if (val == 0) {
 642                 wpa_printf(MSG_ERROR,
 643                            "Line %d: no proto values configured.", line);
 644                 errors++;
 645         }
 646
 647         if (!errors && ssid->proto == val)
 648                 return 1;
 649         wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
 650         ssid->proto = val;
 651         return errors ? -1 : 0;
 652 }
 653
 654
 655 #ifndef NO_CONFIG_WRITE
 656 static char * wpa_config_write_proto(const struct parse_data *data,
 657                                      struct wpa_ssid *ssid)
 658 {
 659         int ret;
 660         char *buf, *pos, *end;
 661
 662         pos = buf = os_zalloc(20);
 663         if (buf == NULL)
 664                 return NULL;
 665         end = buf + 20;
 666
 667         if (ssid->proto & WPA_PROTO_WPA) {
 668                 ret = os_snprintf(pos, end - pos, "%sWPA",
 669                                   pos == buf ? "" : " ");
 670                 if (os_snprintf_error(end - pos, ret))
 671                         return buf;
 672                 pos += ret;
 673         }
 674
 675         if (ssid->proto & WPA_PROTO_RSN) {
 676                 ret = os_snprintf(pos, end - pos, "%sRSN",
 677                                   pos == buf ? "" : " ");
 678                 if (os_snprintf_error(end - pos, ret))
 679                         return buf;
 680                 pos += ret;
 681         }
 682
 683         if (ssid->proto & WPA_PROTO_OSEN) {
 684                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 685                                   pos == buf ? "" : " ");
 686                 if (os_snprintf_error(end - pos, ret))
 687                         return buf;
 688                 pos += ret;
 689         }
 690
 691         if (pos == buf) {
 692                 os_free(buf);
 693                 buf = NULL;
 694         }
 695
 696         return buf;
 697 }
 698 #endif /* NO_CONFIG_WRITE */
 699
 700
 701 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
 702                                      struct wpa_ssid *ssid, int line,
 703                                      const char *value)
 704 {
 705         int val = 0, last, errors = 0;
 706         char *start, *end, *buf;
 707
 708         buf = os_strdup(value);
 709         if (buf == NULL)
 710                 return -1;
 711         start = buf;
 712
 713         while (*start != '\0') {
 714                 while (*start == ' ' || *start == '\t')
 715                         start++;
 716                 if (*start == '\0')
 717                         break;
 718                 end = start;
 719                 while (*end != ' ' && *end != '\t' && *end != '\0')
 720                         end++;
 721                 last = *end == '\0';
 722                 *end = '\0';
 723                 if (os_strcmp(start, "WPA-PSK") == 0)
 724                         val |= WPA_KEY_MGMT_PSK;
 725                 else if (os_strcmp(start, "WPA-EAP") == 0)
 726                         val |= WPA_KEY_MGMT_IEEE8021X;
 727                 else if (os_strcmp(start, "IEEE8021X") == 0)
 728                         val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
 729                 else if (os_strcmp(start, "NONE") == 0)
 730                         val |= WPA_KEY_MGMT_NONE;
 731                 else if (os_strcmp(start, "WPA-NONE") == 0)
 732                         val |= WPA_KEY_MGMT_WPA_NONE;
 733 #ifdef CONFIG_IEEE80211R
 734                 else if (os_strcmp(start, "FT-PSK") == 0)
 735                         val |= WPA_KEY_MGMT_FT_PSK;
 736                 else if (os_strcmp(start, "FT-EAP") == 0)
 737                         val |= WPA_KEY_MGMT_FT_IEEE8021X;
 738 #ifdef CONFIG_SHA384
 739                 else if (os_strcmp(start, "FT-EAP-SHA384") == 0)
 740                         val |= WPA_KEY_MGMT_FT_IEEE8021X_SHA384;
 741 #endif /* CONFIG_SHA384 */
 742 #endif /* CONFIG_IEEE80211R */
 743 #ifdef CONFIG_IEEE80211W
 744                 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
 745                         val |= WPA_KEY_MGMT_PSK_SHA256;
 746                 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
 747                         val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
 748 #endif /* CONFIG_IEEE80211W */
 749 #ifdef CONFIG_WPS
 750                 else if (os_strcmp(start, "WPS") == 0)
 751                         val |= WPA_KEY_MGMT_WPS;
 752 #endif /* CONFIG_WPS */
 753 #ifdef CONFIG_SAE
 754                 else if (os_strcmp(start, "SAE") == 0)
 755                         val |= WPA_KEY_MGMT_SAE;
 756                 else if (os_strcmp(start, "FT-SAE") == 0)
 757                         val |= WPA_KEY_MGMT_FT_SAE;
 758 #endif /* CONFIG_SAE */
 759 #ifdef CONFIG_HS20
 760                 else if (os_strcmp(start, "OSEN") == 0)
 761                         val |= WPA_KEY_MGMT_OSEN;
 762 #endif /* CONFIG_HS20 */
 763 #ifdef CONFIG_SUITEB
 764                 else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
 765                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
 766 #endif /* CONFIG_SUITEB */
 767 #ifdef CONFIG_SUITEB192
 768                 else if (os_strcmp(start, "WPA-EAP-SUITE-B-192") == 0)
 769                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
 770 #endif /* CONFIG_SUITEB192 */
 771 #ifdef CONFIG_FILS
 772                 else if (os_strcmp(start, "FILS-SHA256") == 0)
 773                         val |= WPA_KEY_MGMT_FILS_SHA256;
 774                 else if (os_strcmp(start, "FILS-SHA384") == 0)
 775                         val |= WPA_KEY_MGMT_FILS_SHA384;
 776 #ifdef CONFIG_IEEE80211R
 777                 else if (os_strcmp(start, "FT-FILS-SHA256") == 0)
 778                         val |= WPA_KEY_MGMT_FT_FILS_SHA256;
 779                 else if (os_strcmp(start, "FT-FILS-SHA384") == 0)
 780                         val |= WPA_KEY_MGMT_FT_FILS_SHA384;
 781 #endif /* CONFIG_IEEE80211R */
 782 #endif /* CONFIG_FILS */
 783 #ifdef CONFIG_OWE
 784                 else if (os_strcmp(start, "OWE") == 0)
 785                         val |= WPA_KEY_MGMT_OWE;
 786 #endif /* CONFIG_OWE */
 787 #ifdef CONFIG_DPP
 788                 else if (os_strcmp(start, "DPP") == 0)
 789                         val |= WPA_KEY_MGMT_DPP;
 790 #endif /* CONFIG_DPP */
 791                 else {
 792                         wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
 793                                    line, start);
 794                         errors++;
 795                 }
 796
 797                 if (last)
 798                         break;
 799                 start = end + 1;
 800         }
 801         os_free(buf);
 802
 803         if (val == 0) {
 804                 wpa_printf(MSG_ERROR,
 805                            "Line %d: no key_mgmt values configured.", line);
 806                 errors++;
 807         }
 808
 809         if (!errors && ssid->key_mgmt == val)
 810                 return 1;
 811         wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
 812         ssid->key_mgmt = val;
 813         return errors ? -1 : 0;
 814 }
 815
 816
 817 #ifndef NO_CONFIG_WRITE
 818 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
 819                                         struct wpa_ssid *ssid)
 820 {
 821         char *buf, *pos, *end;
 822         int ret;
 823
 824         pos = buf = os_zalloc(100);
 825         if (buf == NULL)
 826                 return NULL;
 827         end = buf + 100;
 828
 829         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
 830                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
 831                                   pos == buf ? "" : " ");
 832                 if (os_snprintf_error(end - pos, ret)) {
 833                         end[-1] = '\0';
 834                         return buf;
 835                 }
 836                 pos += ret;
 837         }
 838
 839         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
 840                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
 841                                   pos == buf ? "" : " ");
 842                 if (os_snprintf_error(end - pos, ret)) {
 843                         end[-1] = '\0';
 844                         return buf;
 845                 }
 846                 pos += ret;
 847         }
 848
 849         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 850                 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
 851                                   pos == buf ? "" : " ");
 852                 if (os_snprintf_error(end - pos, ret)) {
 853                         end[-1] = '\0';
 854                         return buf;
 855                 }
 856                 pos += ret;
 857         }
 858
 859         if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
 860                 ret = os_snprintf(pos, end - pos, "%sNONE",
 861                                   pos == buf ? "" : " ");
 862                 if (os_snprintf_error(end - pos, ret)) {
 863                         end[-1] = '\0';
 864                         return buf;
 865                 }
 866                 pos += ret;
 867         }
 868
 869         if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
 870                 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
 871                                   pos == buf ? "" : " ");
 872                 if (os_snprintf_error(end - pos, ret)) {
 873                         end[-1] = '\0';
 874                         return buf;
 875                 }
 876                 pos += ret;
 877         }
 878
 879 #ifdef CONFIG_IEEE80211R
 880         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
 881                 ret = os_snprintf(pos, end - pos, "%sFT-PSK",
 882                                   pos == buf ? "" : " ");
 883                 if (os_snprintf_error(end - pos, ret)) {
 884                         end[-1] = '\0';
 885                         return buf;
 886                 }
 887                 pos += ret;
 888         }
 889
 890         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
 891                 ret = os_snprintf(pos, end - pos, "%sFT-EAP",
 892                                   pos == buf ? "" : " ");
 893                 if (os_snprintf_error(end - pos, ret)) {
 894                         end[-1] = '\0';
 895                         return buf;
 896                 }
 897                 pos += ret;
 898         }
 899
 900 #ifdef CONFIG_SHA384
 901         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X_SHA384) {
 902                 ret = os_snprintf(pos, end - pos, "%sFT-EAP-SHA384",
 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_SHA384 */
 911 #endif /* CONFIG_IEEE80211R */
 912
 913 #ifdef CONFIG_IEEE80211W
 914         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
 915                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
 916                                   pos == buf ? "" : " ");
 917                 if (os_snprintf_error(end - pos, ret)) {
 918                         end[-1] = '\0';
 919                         return buf;
 920                 }
 921                 pos += ret;
 922         }
 923
 924         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
 925                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
 926                                   pos == buf ? "" : " ");
 927                 if (os_snprintf_error(end - pos, ret)) {
 928                         end[-1] = '\0';
 929                         return buf;
 930                 }
 931                 pos += ret;
 932         }
 933 #endif /* CONFIG_IEEE80211W */
 934
 935 #ifdef CONFIG_WPS
 936         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 937                 ret = os_snprintf(pos, end - pos, "%sWPS",
 938                                   pos == buf ? "" : " ");
 939                 if (os_snprintf_error(end - pos, ret)) {
 940                         end[-1] = '\0';
 941                         return buf;
 942                 }
 943                 pos += ret;
 944         }
 945 #endif /* CONFIG_WPS */
 946
 947 #ifdef CONFIG_SAE
 948         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 949                 ret = os_snprintf(pos, end - pos, "%sSAE",
 950                                   pos == buf ? "" : " ");
 951                 if (os_snprintf_error(end - pos, ret)) {
 952                         end[-1] = '\0';
 953                         return buf;
 954                 }
 955                 pos += ret;
 956         }
 957
 958         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
 959                 ret = os_snprintf(pos, end - pos, "%sFT-SAE",
 960                                   pos == buf ? "" : " ");
 961                 if (os_snprintf_error(end - pos, ret)) {
 962                         end[-1] = '\0';
 963                         return buf;
 964                 }
 965                 pos += ret;
 966         }
 967 #endif /* CONFIG_SAE */
 968
 969 #ifdef CONFIG_HS20
 970         if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
 971                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 972                                   pos == buf ? "" : " ");
 973                 if (os_snprintf_error(end - pos, ret)) {
 974                         end[-1] = '\0';
 975                         return buf;
 976                 }
 977                 pos += ret;
 978         }
 979 #endif /* CONFIG_HS20 */
 980
 981 #ifdef CONFIG_SUITEB
 982         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
 983                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
 984                                   pos == buf ? "" : " ");
 985                 if (os_snprintf_error(end - pos, ret)) {
 986                         end[-1] = '\0';
 987                         return buf;
 988                 }
 989                 pos += ret;
 990         }
 991 #endif /* CONFIG_SUITEB */
 992
 993 #ifdef CONFIG_SUITEB192
 994         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
 995                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B-192",
 996                                   pos == buf ? "" : " ");
 997                 if (os_snprintf_error(end - pos, ret)) {
 998                         end[-1] = '\0';
 999                         return buf;
1000                 }
1001                 pos += ret;
1002         }
1003 #endif /* CONFIG_SUITEB192 */
1004
1005 #ifdef CONFIG_FILS
1006         if (ssid->key_mgmt & WPA_KEY_MGMT_FILS_SHA256) {
1007                 ret = os_snprintf(pos, end - pos, "%sFILS-SHA256",
1008                                   pos == buf ? "" : " ");
1009                 if (os_snprintf_error(end - pos, ret)) {
1010                         end[-1] = '\0';
1011                         return buf;
1012                 }
1013                 pos += ret;
1014         }
1015         if (ssid->key_mgmt & WPA_KEY_MGMT_FILS_SHA384) {
1016                 ret = os_snprintf(pos, end - pos, "%sFILS-SHA384",
1017                                   pos == buf ? "" : " ");
1018                 if (os_snprintf_error(end - pos, ret)) {
1019                         end[-1] = '\0';
1020                         return buf;
1021                 }
1022                 pos += ret;
1023         }
1024 #ifdef CONFIG_IEEE80211R
1025         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA256) {
1026                 ret = os_snprintf(pos, end - pos, "%sFT-FILS-SHA256",
1027                                   pos == buf ? "" : " ");
1028                 if (os_snprintf_error(end - pos, ret)) {
1029                         end[-1] = '\0';
1030                         return buf;
1031                 }
1032                 pos += ret;
1033         }
1034         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_FILS_SHA384) {
1035                 ret = os_snprintf(pos, end - pos, "%sFT-FILS-SHA384",
1036                                   pos == buf ? "" : " ");
1037                 if (os_snprintf_error(end - pos, ret)) {
1038                         end[-1] = '\0';
1039                         return buf;
1040                 }
1041                 pos += ret;
1042         }
1043 #endif /* CONFIG_IEEE80211R */
1044 #endif /* CONFIG_FILS */
1045
1046         if (pos == buf) {
1047                 os_free(buf);
1048                 buf = NULL;
1049         }
1050
1051         return buf;
1052 }
1053 #endif /* NO_CONFIG_WRITE */
1054
1055
1056 static int wpa_config_parse_cipher(int line, const char *value)
1057 {
1058 #ifdef CONFIG_NO_WPA
1059         return -1;
1060 #else /* CONFIG_NO_WPA */
1061         int val = wpa_parse_cipher(value);
1062         if (val < 0) {
1063                 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
1064                            line, value);
1065                 return -1;
1066         }
1067         if (val == 0) {
1068                 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
1069                            line);
1070                 return -1;
1071         }
1072         return val;
1073 #endif /* CONFIG_NO_WPA */
1074 }
1075
1076
1077 #ifndef NO_CONFIG_WRITE
1078 static char * wpa_config_write_cipher(int cipher)
1079 {
1080 #ifdef CONFIG_NO_WPA
1081         return NULL;
1082 #else /* CONFIG_NO_WPA */
1083         char *buf = os_zalloc(50);
1084         if (buf == NULL)
1085                 return NULL;
1086
1087         if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
1088                 os_free(buf);
1089                 return NULL;
1090         }
1091
1092         return buf;
1093 #endif /* CONFIG_NO_WPA */
1094 }
1095 #endif /* NO_CONFIG_WRITE */
1096
1097
1098 static int wpa_config_parse_pairwise(const struct parse_data *data,
1099                                      struct wpa_ssid *ssid, int line,
1100                                      const char *value)
1101 {
1102         int val;
1103         val = wpa_config_parse_cipher(line, value);
1104         if (val == -1)
1105                 return -1;
1106         if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
1107                 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
1108                            "(0x%x).", line, val);
1109                 return -1;
1110         }
1111
1112         if (ssid->pairwise_cipher == val)
1113                 return 1;
1114         wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
1115         ssid->pairwise_cipher = val;
1116         return 0;
1117 }
1118
1119
1120 #ifndef NO_CONFIG_WRITE
1121 static char * wpa_config_write_pairwise(const struct parse_data *data,
1122                                         struct wpa_ssid *ssid)
1123 {
1124         return wpa_config_write_cipher(ssid->pairwise_cipher);
1125 }
1126 #endif /* NO_CONFIG_WRITE */
1127
1128
1129 static int wpa_config_parse_group(const struct parse_data *data,
1130                                   struct wpa_ssid *ssid, int line,
1131                                   const char *value)
1132 {
1133         int val;
1134         val = wpa_config_parse_cipher(line, value);
1135         if (val == -1)
1136                 return -1;
1137
1138         /*
1139          * Backwards compatibility - filter out WEP ciphers that were previously
1140          * allowed.
1141          */
1142         val &= ~(WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40);
1143
1144         if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
1145                 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
1146                            "(0x%x).", line, val);
1147                 return -1;
1148         }
1149
1150         if (ssid->group_cipher == val)
1151                 return 1;
1152         wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
1153         ssid->group_cipher = val;
1154         return 0;
1155 }
1156
1157
1158 #ifndef NO_CONFIG_WRITE
1159 static char * wpa_config_write_group(const struct parse_data *data,
1160                                      struct wpa_ssid *ssid)
1161 {
1162         return wpa_config_write_cipher(ssid->group_cipher);
1163 }
1164 #endif /* NO_CONFIG_WRITE */
1165
1166
1167 static int wpa_config_parse_group_mgmt(const struct parse_data *data,
1168                                        struct wpa_ssid *ssid, int line,
1169                                        const char *value)
1170 {
1171         int val;
1172
1173         val = wpa_config_parse_cipher(line, value);
1174         if (val == -1)
1175                 return -1;
1176
1177         if (val & ~WPA_ALLOWED_GROUP_MGMT_CIPHERS) {
1178                 wpa_printf(MSG_ERROR,
1179                            "Line %d: not allowed group management cipher (0x%x).",
1180                            line, val);
1181                 return -1;
1182         }
1183
1184         if (ssid->group_mgmt_cipher == val)
1185                 return 1;
1186         wpa_printf(MSG_MSGDUMP, "group_mgmt: 0x%x", val);
1187         ssid->group_mgmt_cipher = val;
1188         return 0;
1189 }
1190
1191
1192 #ifndef NO_CONFIG_WRITE
1193 static char * wpa_config_write_group_mgmt(const struct parse_data *data,
1194                                           struct wpa_ssid *ssid)
1195 {
1196         return wpa_config_write_cipher(ssid->group_mgmt_cipher);
1197 }
1198 #endif /* NO_CONFIG_WRITE */
1199
1200
1201 static int wpa_config_parse_auth_alg(const struct parse_data *data,
1202                                      struct wpa_ssid *ssid, int line,
1203                                      const char *value)
1204 {
1205         int val = 0, last, errors = 0;
1206         char *start, *end, *buf;
1207
1208         buf = os_strdup(value);
1209         if (buf == NULL)
1210                 return -1;
1211         start = buf;
1212
1213         while (*start != '\0') {
1214                 while (*start == ' ' || *start == '\t')
1215                         start++;
1216                 if (*start == '\0')
1217                         break;
1218                 end = start;
1219                 while (*end != ' ' && *end != '\t' && *end != '\0')
1220                         end++;
1221                 last = *end == '\0';
1222                 *end = '\0';
1223                 if (os_strcmp(start, "OPEN") == 0)
1224                         val |= WPA_AUTH_ALG_OPEN;
1225                 else if (os_strcmp(start, "SHARED") == 0)
1226                         val |= WPA_AUTH_ALG_SHARED;
1227                 else if (os_strcmp(start, "LEAP") == 0)
1228                         val |= WPA_AUTH_ALG_LEAP;
1229                 else {
1230                         wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1231                                    line, start);
1232                         errors++;
1233                 }
1234
1235                 if (last)
1236                         break;
1237                 start = end + 1;
1238         }
1239         os_free(buf);
1240
1241         if (val == 0) {
1242                 wpa_printf(MSG_ERROR,
1243                            "Line %d: no auth_alg values configured.", line);
1244                 errors++;
1245         }
1246
1247         if (!errors && ssid->auth_alg == val)
1248                 return 1;
1249         wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1250         ssid->auth_alg = val;
1251         return errors ? -1 : 0;
1252 }
1253
1254
1255 #ifndef NO_CONFIG_WRITE
1256 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1257                                         struct wpa_ssid *ssid)
1258 {
1259         char *buf, *pos, *end;
1260         int ret;
1261
1262         pos = buf = os_zalloc(30);
1263         if (buf == NULL)
1264                 return NULL;
1265         end = buf + 30;
1266
1267         if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1268                 ret = os_snprintf(pos, end - pos, "%sOPEN",
1269                                   pos == buf ? "" : " ");
1270                 if (os_snprintf_error(end - pos, ret)) {
1271                         end[-1] = '\0';
1272                         return buf;
1273                 }
1274                 pos += ret;
1275         }
1276
1277         if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1278                 ret = os_snprintf(pos, end - pos, "%sSHARED",
1279                                   pos == buf ? "" : " ");
1280                 if (os_snprintf_error(end - pos, ret)) {
1281                         end[-1] = '\0';
1282                         return buf;
1283                 }
1284                 pos += ret;
1285         }
1286
1287         if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1288                 ret = os_snprintf(pos, end - pos, "%sLEAP",
1289                                   pos == buf ? "" : " ");
1290                 if (os_snprintf_error(end - pos, ret)) {
1291                         end[-1] = '\0';
1292                         return buf;
1293                 }
1294                 pos += ret;
1295         }
1296
1297         if (pos == buf) {
1298                 os_free(buf);
1299                 buf = NULL;
1300         }
1301
1302         return buf;
1303 }
1304 #endif /* NO_CONFIG_WRITE */
1305
1306
1307 static int * wpa_config_parse_int_array(const char *value)
1308 {
1309         int *freqs;
1310         size_t used, len;
1311         const char *pos;
1312
1313         used = 0;
1314         len = 10;
1315         freqs = os_calloc(len + 1, sizeof(int));
1316         if (freqs == NULL)
1317                 return NULL;
1318
1319         pos = value;
1320         while (pos) {
1321                 while (*pos == ' ')
1322                         pos++;
1323                 if (used == len) {
1324                         int *n;
1325                         size_t i;
1326                         n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1327                         if (n == NULL) {
1328                                 os_free(freqs);
1329                                 return NULL;
1330                         }
1331                         for (i = len; i <= len * 2; i++)
1332                                 n[i] = 0;
1333                         freqs = n;
1334                         len *= 2;
1335                 }
1336
1337                 freqs[used] = atoi(pos);
1338                 if (freqs[used] == 0)
1339                         break;
1340                 used++;
1341                 pos = os_strchr(pos + 1, ' ');
1342         }
1343
1344         return freqs;
1345 }
1346
1347
1348 static int wpa_config_parse_scan_freq(const struct parse_data *data,
1349                                       struct wpa_ssid *ssid, int line,
1350                                       const char *value)
1351 {
1352         int *freqs;
1353
1354         freqs = wpa_config_parse_int_array(value);
1355         if (freqs == NULL)
1356                 return -1;
1357         if (freqs[0] == 0) {
1358                 os_free(freqs);
1359                 freqs = NULL;
1360         }
1361         os_free(ssid->scan_freq);
1362         ssid->scan_freq = freqs;
1363
1364         return 0;
1365 }
1366
1367
1368 static int wpa_config_parse_freq_list(const struct parse_data *data,
1369                                       struct wpa_ssid *ssid, int line,
1370                                       const char *value)
1371 {
1372         int *freqs;
1373
1374         freqs = wpa_config_parse_int_array(value);
1375         if (freqs == NULL)
1376                 return -1;
1377         if (freqs[0] == 0) {
1378                 os_free(freqs);
1379                 freqs = NULL;
1380         }
1381         os_free(ssid->freq_list);
1382         ssid->freq_list = freqs;
1383
1384         return 0;
1385 }
1386
1387
1388 #ifndef NO_CONFIG_WRITE
1389 static char * wpa_config_write_freqs(const struct parse_data *data,
1390                                      const int *freqs)
1391 {
1392         char *buf, *pos, *end;
1393         int i, ret;
1394         size_t count;
1395
1396         if (freqs == NULL)
1397                 return NULL;
1398
1399         count = 0;
1400         for (i = 0; freqs[i]; i++)
1401                 count++;
1402
1403         pos = buf = os_zalloc(10 * count + 1);
1404         if (buf == NULL)
1405                 return NULL;
1406         end = buf + 10 * count + 1;
1407
1408         for (i = 0; freqs[i]; i++) {
1409                 ret = os_snprintf(pos, end - pos, "%s%u",
1410                                   i == 0 ? "" : " ", freqs[i]);
1411                 if (os_snprintf_error(end - pos, ret)) {
1412                         end[-1] = '\0';
1413                         return buf;
1414                 }
1415                 pos += ret;
1416         }
1417
1418         return buf;
1419 }
1420
1421
1422 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1423                                          struct wpa_ssid *ssid)
1424 {
1425         return wpa_config_write_freqs(data, ssid->scan_freq);
1426 }
1427
1428
1429 static char * wpa_config_write_freq_list(const struct parse_data *data,
1430                                          struct wpa_ssid *ssid)
1431 {
1432         return wpa_config_write_freqs(data, ssid->freq_list);
1433 }
1434 #endif /* NO_CONFIG_WRITE */
1435
1436
1437 #ifdef IEEE8021X_EAPOL
1438 static int wpa_config_parse_eap(const struct parse_data *data,
1439                                 struct wpa_ssid *ssid, int line,
1440                                 const char *value)
1441 {
1442         int last, errors = 0;
1443         char *start, *end, *buf;
1444         struct eap_method_type *methods = NULL, *tmp;
1445         size_t num_methods = 0;
1446
1447         buf = os_strdup(value);
1448         if (buf == NULL)
1449                 return -1;
1450         start = buf;
1451
1452         while (*start != '\0') {
1453                 while (*start == ' ' || *start == '\t')
1454                         start++;
1455                 if (*start == '\0')
1456                         break;
1457                 end = start;
1458                 while (*end != ' ' && *end != '\t' && *end != '\0')
1459                         end++;
1460                 last = *end == '\0';
1461                 *end = '\0';
1462                 tmp = methods;
1463                 methods = os_realloc_array(methods, num_methods + 1,
1464                                            sizeof(*methods));
1465                 if (methods == NULL) {
1466                         os_free(tmp);
1467                         os_free(buf);
1468                         return -1;
1469                 }
1470                 methods[num_methods].method = eap_peer_get_type(
1471                         start, &methods[num_methods].vendor);
1472                 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1473                     methods[num_methods].method == EAP_TYPE_NONE) {
1474                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1475                                    "'%s'", line, start);
1476                         wpa_printf(MSG_ERROR, "You may need to add support for"
1477                                    " this EAP method during wpa_supplicant\n"
1478                                    "build time configuration.\n"
1479                                    "See README for more information.");
1480                         errors++;
1481                 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1482                            methods[num_methods].method == EAP_TYPE_LEAP)
1483                         ssid->leap++;
1484                 else
1485                         ssid->non_leap++;
1486                 num_methods++;
1487                 if (last)
1488                         break;
1489                 start = end + 1;
1490         }
1491         os_free(buf);
1492
1493         tmp = methods;
1494         methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1495         if (methods == NULL) {
1496                 os_free(tmp);
1497                 return -1;
1498         }
1499         methods[num_methods].vendor = EAP_VENDOR_IETF;
1500         methods[num_methods].method = EAP_TYPE_NONE;
1501         num_methods++;
1502
1503         if (!errors && ssid->eap.eap_methods) {
1504                 struct eap_method_type *prev_m;
1505                 size_t i, j, prev_methods, match = 0;
1506
1507                 prev_m = ssid->eap.eap_methods;
1508                 for (i = 0; prev_m[i].vendor != EAP_VENDOR_IETF ||
1509                              prev_m[i].method != EAP_TYPE_NONE; i++) {
1510                         /* Count the methods */
1511                 }
1512                 prev_methods = i + 1;
1513
1514                 for (i = 0; prev_methods == num_methods && i < prev_methods;
1515                      i++) {
1516                         for (j = 0; j < num_methods; j++) {
1517                                 if (prev_m[i].vendor == methods[j].vendor &&
1518                                     prev_m[i].method == methods[j].method) {
1519                                         match++;
1520                                         break;
1521                                 }
1522                         }
1523                 }
1524                 if (match == num_methods) {
1525                         os_free(methods);
1526                         return 1;
1527                 }
1528         }
1529         wpa_hexdump(MSG_MSGDUMP, "eap methods",
1530                     (u8 *) methods, num_methods * sizeof(*methods));
1531         os_free(ssid->eap.eap_methods);
1532         ssid->eap.eap_methods = methods;
1533         return errors ? -1 : 0;
1534 }
1535
1536
1537 #ifndef NO_CONFIG_WRITE
1538 static char * wpa_config_write_eap(const struct parse_data *data,
1539                                    struct wpa_ssid *ssid)
1540 {
1541         int i, ret;
1542         char *buf, *pos, *end;
1543         const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1544         const char *name;
1545
1546         if (eap_methods == NULL)
1547                 return NULL;
1548
1549         pos = buf = os_zalloc(100);
1550         if (buf == NULL)
1551                 return NULL;
1552         end = buf + 100;
1553
1554         for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1555                      eap_methods[i].method != EAP_TYPE_NONE; i++) {
1556                 name = eap_get_name(eap_methods[i].vendor,
1557                                     eap_methods[i].method);
1558                 if (name) {
1559                         ret = os_snprintf(pos, end - pos, "%s%s",
1560                                           pos == buf ? "" : " ", name);
1561                         if (os_snprintf_error(end - pos, ret))
1562                                 break;
1563                         pos += ret;
1564                 }
1565         }
1566
1567         end[-1] = '\0';
1568
1569         return buf;
1570 }
1571 #endif /* NO_CONFIG_WRITE */
1572
1573
1574 static int wpa_config_parse_password(const struct parse_data *data,
1575                                      struct wpa_ssid *ssid, int line,
1576                                      const char *value)
1577 {
1578         u8 *hash;
1579
1580         if (os_strcmp(value, "NULL") == 0) {
1581                 if (!ssid->eap.password)
1582                         return 1; /* Already unset */
1583                 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1584                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1585                 ssid->eap.password = NULL;
1586                 ssid->eap.password_len = 0;
1587                 return 0;
1588         }
1589
1590 #ifdef CONFIG_EXT_PASSWORD
1591         if (os_strncmp(value, "ext:", 4) == 0) {
1592                 char *name = os_strdup(value + 4);
1593                 if (name == NULL)
1594                         return -1;
1595                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1596                 ssid->eap.password = (u8 *) name;
1597                 ssid->eap.password_len = os_strlen(name);
1598                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1599                 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1600                 return 0;
1601         }
1602 #endif /* CONFIG_EXT_PASSWORD */
1603
1604         if (os_strncmp(value, "hash:", 5) != 0) {
1605                 char *tmp;
1606                 size_t res_len;
1607
1608                 tmp = wpa_config_parse_string(value, &res_len);
1609                 if (tmp == NULL) {
1610                         wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1611                                    "password.", line);
1612                         return -1;
1613                 }
1614                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1615                                       (u8 *) tmp, res_len);
1616
1617                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1618                 ssid->eap.password = (u8 *) tmp;
1619                 ssid->eap.password_len = res_len;
1620                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1621                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1622
1623                 return 0;
1624         }
1625
1626
1627         /* NtPasswordHash: hash:<32 hex digits> */
1628         if (os_strlen(value + 5) != 2 * 16) {
1629                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1630                            "(expected 32 hex digits)", line);
1631                 return -1;
1632         }
1633
1634         hash = os_malloc(16);
1635         if (hash == NULL)
1636                 return -1;
1637
1638         if (hexstr2bin(value + 5, hash, 16)) {
1639                 os_free(hash);
1640                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1641                 return -1;
1642         }
1643
1644         wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1645
1646         if (ssid->eap.password && ssid->eap.password_len == 16 &&
1647             os_memcmp(ssid->eap.password, hash, 16) == 0 &&
1648             (ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1649                 bin_clear_free(hash, 16);
1650                 return 1;
1651         }
1652         bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1653         ssid->eap.password = hash;
1654         ssid->eap.password_len = 16;
1655         ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1656         ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1657
1658         return 0;
1659 }
1660
1661
1662 #ifndef NO_CONFIG_WRITE
1663 static char * wpa_config_write_password(const struct parse_data *data,
1664                                         struct wpa_ssid *ssid)
1665 {
1666         char *buf;
1667
1668         if (ssid->eap.password == NULL)
1669                 return NULL;
1670
1671 #ifdef CONFIG_EXT_PASSWORD
1672         if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1673                 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1674                 if (buf == NULL)
1675                         return NULL;
1676                 os_memcpy(buf, "ext:", 4);
1677                 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1678                 return buf;
1679         }
1680 #endif /* CONFIG_EXT_PASSWORD */
1681
1682         if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1683                 return wpa_config_write_string(
1684                         ssid->eap.password, ssid->eap.password_len);
1685         }
1686
1687         buf = os_malloc(5 + 32 + 1);
1688         if (buf == NULL)
1689                 return NULL;
1690
1691         os_memcpy(buf, "hash:", 5);
1692         wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1693
1694         return buf;
1695 }
1696 #endif /* NO_CONFIG_WRITE */
1697 #endif /* IEEE8021X_EAPOL */
1698
1699
1700 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1701                                     const char *value, int idx)
1702 {
1703         char *buf, title[20];
1704         int res;
1705
1706         buf = wpa_config_parse_string(value, len);
1707         if (buf == NULL) {
1708                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1709                            line, idx, value);
1710                 return -1;
1711         }
1712         if (*len > MAX_WEP_KEY_LEN) {
1713                 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1714                            line, idx, value);
1715                 os_free(buf);
1716                 return -1;
1717         }
1718         if (*len && *len != 5 && *len != 13 && *len != 16) {
1719                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1720                            "this network block will be ignored",
1721                            line, (unsigned int) *len);
1722         }
1723         os_memcpy(key, buf, *len);
1724         str_clear_free(buf);
1725         res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1726         if (!os_snprintf_error(sizeof(title), res))
1727                 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1728         return 0;
1729 }
1730
1731
1732 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1733                                      struct wpa_ssid *ssid, int line,
1734                                      const char *value)
1735 {
1736         return wpa_config_parse_wep_key(ssid->wep_key[0],
1737                                         &ssid->wep_key_len[0], line,
1738                                         value, 0);
1739 }
1740
1741
1742 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1743                                      struct wpa_ssid *ssid, int line,
1744                                      const char *value)
1745 {
1746         return wpa_config_parse_wep_key(ssid->wep_key[1],
1747                                         &ssid->wep_key_len[1], line,
1748                                         value, 1);
1749 }
1750
1751
1752 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1753                                      struct wpa_ssid *ssid, int line,
1754                                      const char *value)
1755 {
1756         return wpa_config_parse_wep_key(ssid->wep_key[2],
1757                                         &ssid->wep_key_len[2], line,
1758                                         value, 2);
1759 }
1760
1761
1762 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1763                                      struct wpa_ssid *ssid, int line,
1764                                      const char *value)
1765 {
1766         return wpa_config_parse_wep_key(ssid->wep_key[3],
1767                                         &ssid->wep_key_len[3], line,
1768                                         value, 3);
1769 }
1770
1771
1772 #ifndef NO_CONFIG_WRITE
1773 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1774 {
1775         if (ssid->wep_key_len[idx] == 0)
1776                 return NULL;
1777         return wpa_config_write_string(ssid->wep_key[idx],
1778                                        ssid->wep_key_len[idx]);
1779 }
1780
1781
1782 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1783                                         struct wpa_ssid *ssid)
1784 {
1785         return wpa_config_write_wep_key(ssid, 0);
1786 }
1787
1788
1789 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1790                                         struct wpa_ssid *ssid)
1791 {
1792         return wpa_config_write_wep_key(ssid, 1);
1793 }
1794
1795
1796 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1797                                         struct wpa_ssid *ssid)
1798 {
1799         return wpa_config_write_wep_key(ssid, 2);
1800 }
1801
1802
1803 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1804                                         struct wpa_ssid *ssid)
1805 {
1806         return wpa_config_write_wep_key(ssid, 3);
1807 }
1808 #endif /* NO_CONFIG_WRITE */
1809
1810
1811 #ifdef CONFIG_P2P
1812
1813 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1814                                             struct wpa_ssid *ssid, int line,
1815                                             const char *value)
1816 {
1817         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1818             os_strcmp(value, "any") == 0) {
1819                 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1820                 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1821                 return 0;
1822         }
1823         if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1824                 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1825                            line, value);
1826                 return -1;
1827         }
1828         ssid->bssid_set = 1;
1829         wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1830                    MAC2STR(ssid->go_p2p_dev_addr));
1831         return 0;
1832 }
1833
1834
1835 #ifndef NO_CONFIG_WRITE
1836 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1837                                                struct wpa_ssid *ssid)
1838 {
1839         char *value;
1840         int res;
1841
1842         if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1843                 return NULL;
1844
1845         value = os_malloc(20);
1846         if (value == NULL)
1847                 return NULL;
1848         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1849         if (os_snprintf_error(20, res)) {
1850                 os_free(value);
1851                 return NULL;
1852         }
1853         value[20 - 1] = '\0';
1854         return value;
1855 }
1856 #endif /* NO_CONFIG_WRITE */
1857
1858
1859 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1860                                             struct wpa_ssid *ssid, int line,
1861                                             const char *value)
1862 {
1863         return wpa_config_parse_addr_list(data, line, value,
1864                                           &ssid->p2p_client_list,
1865                                           &ssid->num_p2p_clients,
1866                                           "p2p_client_list", 0, 0);
1867 }
1868
1869
1870 #ifndef NO_CONFIG_WRITE
1871 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1872                                                struct wpa_ssid *ssid)
1873 {
1874         return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1875                                           ssid->num_p2p_clients,
1876                                           "p2p_client_list");
1877 }
1878 #endif /* NO_CONFIG_WRITE */
1879
1880
1881 static int wpa_config_parse_psk_list(const struct parse_data *data,
1882                                      struct wpa_ssid *ssid, int line,
1883                                      const char *value)
1884 {
1885         struct psk_list_entry *p;
1886         const char *pos;
1887
1888         p = os_zalloc(sizeof(*p));
1889         if (p == NULL)
1890                 return -1;
1891
1892         pos = value;
1893         if (os_strncmp(pos, "P2P-", 4) == 0) {
1894                 p->p2p = 1;
1895                 pos += 4;
1896         }
1897
1898         if (hwaddr_aton(pos, p->addr)) {
1899                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1900                            line, pos);
1901                 os_free(p);
1902                 return -1;
1903         }
1904         pos += 17;
1905         if (*pos != '-') {
1906                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1907                            line, pos);
1908                 os_free(p);
1909                 return -1;
1910         }
1911         pos++;
1912
1913         if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1914                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1915                            line, pos);
1916                 os_free(p);
1917                 return -1;
1918         }
1919
1920         dl_list_add(&ssid->psk_list, &p->list);
1921
1922         return 0;
1923 }
1924
1925
1926 #ifndef NO_CONFIG_WRITE
1927 static char * wpa_config_write_psk_list(const struct parse_data *data,
1928                                         struct wpa_ssid *ssid)
1929 {
1930         return NULL;
1931 }
1932 #endif /* NO_CONFIG_WRITE */
1933
1934 #endif /* CONFIG_P2P */
1935
1936
1937 #ifdef CONFIG_MESH
1938
1939 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1940                                              struct wpa_ssid *ssid, int line,
1941                                              const char *value)
1942 {
1943         int *rates = wpa_config_parse_int_array(value);
1944
1945         if (rates == NULL) {
1946                 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1947                            line, value);
1948                 return -1;
1949         }
1950         if (rates[0] == 0) {
1951                 os_free(rates);
1952                 rates = NULL;
1953         }
1954
1955         os_free(ssid->mesh_basic_rates);
1956         ssid->mesh_basic_rates = rates;
1957
1958         return 0;
1959 }
1960
1961
1962 #ifndef NO_CONFIG_WRITE
1963
1964 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1965                                                 struct wpa_ssid *ssid)
1966 {
1967         return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1968 }
1969
1970 #endif /* NO_CONFIG_WRITE */
1971
1972 #endif /* CONFIG_MESH */
1973
1974
1975 #ifdef CONFIG_MACSEC
1976
1977 static int wpa_config_parse_mka_cak(const struct parse_data *data,
1978                                     struct wpa_ssid *ssid, int line,
1979                                     const char *value)
1980 {
1981         if (hexstr2bin(value, ssid->mka_cak, MACSEC_CAK_LEN) ||
1982             value[MACSEC_CAK_LEN * 2] != '\0') {
1983                 wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CAK '%s'.",
1984                            line, value);
1985                 return -1;
1986         }
1987
1988         ssid->mka_psk_set |= MKA_PSK_SET_CAK;
1989
1990         wpa_hexdump_key(MSG_MSGDUMP, "MKA-CAK", ssid->mka_cak, MACSEC_CAK_LEN);
1991         return 0;
1992 }
1993
1994
1995 static int wpa_config_parse_mka_ckn(const struct parse_data *data,
1996                                     struct wpa_ssid *ssid, int line,
1997                                     const char *value)
1998 {
1999         if (hexstr2bin(value, ssid->mka_ckn, MACSEC_CKN_LEN) ||
2000             value[MACSEC_CKN_LEN * 2] != '\0') {
2001                 wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CKN '%s'.",
2002                            line, value);
2003                 return -1;
2004         }
2005
2006         ssid->mka_psk_set |= MKA_PSK_SET_CKN;
2007
2008         wpa_hexdump_key(MSG_MSGDUMP, "MKA-CKN", ssid->mka_ckn, MACSEC_CKN_LEN);
2009         return 0;
2010 }
2011
2012
2013 #ifndef NO_CONFIG_WRITE
2014
2015 static char * wpa_config_write_mka_cak(const struct parse_data *data,
2016                                        struct wpa_ssid *ssid)
2017 {
2018         if (!(ssid->mka_psk_set & MKA_PSK_SET_CAK))
2019                 return NULL;
2020
2021         return wpa_config_write_string_hex(ssid->mka_cak, MACSEC_CAK_LEN);
2022 }
2023
2024
2025 static char * wpa_config_write_mka_ckn(const struct parse_data *data,
2026                                        struct wpa_ssid *ssid)
2027 {
2028         if (!(ssid->mka_psk_set & MKA_PSK_SET_CKN))
2029                 return NULL;
2030         return wpa_config_write_string_hex(ssid->mka_ckn, MACSEC_CKN_LEN);
2031 }
2032
2033 #endif /* NO_CONFIG_WRITE */
2034
2035 #endif /* CONFIG_MACSEC */
2036
2037
2038 static int wpa_config_parse_peerkey(const struct parse_data *data,
2039                                     struct wpa_ssid *ssid, int line,
2040                                     const char *value)
2041 {
2042         wpa_printf(MSG_INFO, "NOTE: Obsolete peerkey parameter ignored");
2043         return 0;
2044 }
2045
2046
2047 #ifndef NO_CONFIG_WRITE
2048 static char * wpa_config_write_peerkey(const struct parse_data *data,
2049                                        struct wpa_ssid *ssid)
2050 {
2051         return NULL;
2052 }
2053 #endif /* NO_CONFIG_WRITE */
2054
2055
2056 /* Helper macros for network block parser */
2057
2058 #ifdef OFFSET
2059 #undef OFFSET
2060 #endif /* OFFSET */
2061 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
2062 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
2063
2064 /* STR: Define a string variable for an ASCII string; f = field name */
2065 #ifdef NO_CONFIG_WRITE
2066 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
2067 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
2068 #else /* NO_CONFIG_WRITE */
2069 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
2070 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
2071 #endif /* NO_CONFIG_WRITE */
2072 #define STR(f) _STR(f), NULL, NULL, NULL, 0
2073 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
2074 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
2075 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
2076
2077 /* STR_LEN: Define a string variable with a separate variable for storing the
2078  * data length. Unlike STR(), this can be used to store arbitrary binary data
2079  * (i.e., even nul termination character). */
2080 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
2081 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
2082 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
2083 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
2084 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
2085
2086 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
2087  * explicitly specified. */
2088 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
2089 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
2090 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
2091
2092 #ifdef NO_CONFIG_WRITE
2093 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
2094 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
2095 #else /* NO_CONFIG_WRITE */
2096 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2097         OFFSET(f), (void *) 0
2098 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2099         OFFSET(eap.f), (void *) 0
2100 #endif /* NO_CONFIG_WRITE */
2101
2102 /* INT: Define an integer variable */
2103 #define INT(f) _INT(f), NULL, NULL, 0
2104 #define INTe(f) _INTe(f), NULL, NULL, 0
2105
2106 /* INT_RANGE: Define an integer variable with allowed value range */
2107 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
2108
2109 /* FUNC: Define a configuration variable that uses a custom function for
2110  * parsing and writing the value. */
2111 #ifdef NO_CONFIG_WRITE
2112 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
2113 #else /* NO_CONFIG_WRITE */
2114 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
2115         NULL, NULL, NULL, NULL
2116 #endif /* NO_CONFIG_WRITE */
2117 #define FUNC(f) _FUNC(f), 0
2118 #define FUNC_KEY(f) _FUNC(f), 1
2119
2120 /*
2121  * Table of network configuration variables. This table is used to parse each
2122  * network configuration variable, e.g., each line in wpa_supplicant.conf file
2123  * that is inside a network block.
2124  *
2125  * This table is generated using the helper macros defined above and with
2126  * generous help from the C pre-processor. The field name is stored as a string
2127  * into .name and for STR and INT types, the offset of the target buffer within
2128  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
2129  * offset to the field containing the length of the configuration variable.
2130  * .param3 and .param4 can be used to mark the allowed range (length for STR
2131  * and value for INT).
2132  *
2133  * For each configuration line in wpa_supplicant.conf, the parser goes through
2134  * this table and select the entry that matches with the field name. The parser
2135  * function (.parser) is then called to parse the actual value of the field.
2136  *
2137  * This kind of mechanism makes it easy to add new configuration parameters,
2138  * since only one line needs to be added into this table and into the
2139  * struct wpa_ssid definition if the new variable is either a string or
2140  * integer. More complex types will need to use their own parser and writer
2141  * functions.
2142  */
2143 static const struct parse_data ssid_fields[] = {
2144         { STR_RANGE(ssid, 0, SSID_MAX_LEN) },
2145         { INT_RANGE(scan_ssid, 0, 1) },
2146         { FUNC(bssid) },
2147         { FUNC(bssid_hint) },
2148         { FUNC(bssid_blacklist) },
2149         { FUNC(bssid_whitelist) },
2150         { FUNC_KEY(psk) },
2151         { INT(mem_only_psk) },
2152         { STR_KEY(sae_password) },
2153         { STR(sae_password_id) },
2154         { FUNC(proto) },
2155         { FUNC(key_mgmt) },
2156         { INT(bg_scan_period) },
2157         { FUNC(pairwise) },
2158         { FUNC(group) },
2159         { FUNC(group_mgmt) },
2160         { FUNC(auth_alg) },
2161         { FUNC(scan_freq) },
2162         { FUNC(freq_list) },
2163         { INT_RANGE(ht, 0, 1) },
2164         { INT_RANGE(vht, 0, 1) },
2165         { INT_RANGE(ht40, -1, 1) },
2166         { INT_RANGE(max_oper_chwidth, VHT_CHANWIDTH_USE_HT,
2167                     VHT_CHANWIDTH_80P80MHZ) },
2168         { INT(vht_center_freq1) },
2169         { INT(vht_center_freq2) },
2170 #ifdef IEEE8021X_EAPOL
2171         { FUNC(eap) },
2172         { STR_LENe(identity) },
2173         { STR_LENe(anonymous_identity) },
2174         { STR_LENe(imsi_identity) },
2175         { FUNC_KEY(password) },
2176         { STRe(ca_cert) },
2177         { STRe(ca_path) },
2178         { STRe(client_cert) },
2179         { STRe(private_key) },
2180         { STR_KEYe(private_key_passwd) },
2181         { STRe(dh_file) },
2182         { STRe(subject_match) },
2183         { STRe(altsubject_match) },
2184         { STRe(domain_suffix_match) },
2185         { STRe(domain_match) },
2186         { STRe(ca_cert2) },
2187         { STRe(ca_path2) },
2188         { STRe(client_cert2) },
2189         { STRe(private_key2) },
2190         { STR_KEYe(private_key2_passwd) },
2191         { STRe(dh_file2) },
2192         { STRe(subject_match2) },
2193         { STRe(altsubject_match2) },
2194         { STRe(domain_suffix_match2) },
2195         { STRe(domain_match2) },
2196         { STRe(phase1) },
2197         { STRe(phase2) },
2198         { STRe(pcsc) },
2199         { STR_KEYe(pin) },
2200         { STRe(engine_id) },
2201         { STRe(key_id) },
2202         { STRe(cert_id) },
2203         { STRe(ca_cert_id) },
2204         { STR_KEYe(pin2) },
2205         { STRe(engine2_id) },
2206         { STRe(key2_id) },
2207         { STRe(cert2_id) },
2208         { STRe(ca_cert2_id) },
2209         { INTe(engine) },
2210         { INTe(engine2) },
2211         { INT(eapol_flags) },
2212         { INTe(sim_num) },
2213         { STRe(openssl_ciphers) },
2214         { INTe(erp) },
2215 #endif /* IEEE8021X_EAPOL */
2216         { FUNC_KEY(wep_key0) },
2217         { FUNC_KEY(wep_key1) },
2218         { FUNC_KEY(wep_key2) },
2219         { FUNC_KEY(wep_key3) },
2220         { INT(wep_tx_keyidx) },
2221         { INT(priority) },
2222 #ifdef IEEE8021X_EAPOL
2223         { INT(eap_workaround) },
2224         { STRe(pac_file) },
2225         { INTe(fragment_size) },
2226         { INTe(ocsp) },
2227 #endif /* IEEE8021X_EAPOL */
2228 #ifdef CONFIG_MESH
2229         { INT_RANGE(mode, 0, 5) },
2230         { INT_RANGE(no_auto_peer, 0, 1) },
2231         { INT_RANGE(mesh_rssi_threshold, -255, 1) },
2232 #else /* CONFIG_MESH */
2233         { INT_RANGE(mode, 0, 4) },
2234 #endif /* CONFIG_MESH */
2235         { INT_RANGE(proactive_key_caching, 0, 1) },
2236         { INT_RANGE(disabled, 0, 2) },
2237         { STR(id_str) },
2238 #ifdef CONFIG_IEEE80211W
2239         { INT_RANGE(ieee80211w, 0, 2) },
2240 #endif /* CONFIG_IEEE80211W */
2241         { FUNC(peerkey) /* obsolete - removed */ },
2242         { INT_RANGE(mixed_cell, 0, 1) },
2243         { INT_RANGE(frequency, 0, 65000) },
2244         { INT_RANGE(fixed_freq, 0, 1) },
2245 #ifdef CONFIG_ACS
2246         { INT_RANGE(acs, 0, 1) },
2247 #endif /* CONFIG_ACS */
2248 #ifdef CONFIG_MESH
2249         { FUNC(mesh_basic_rates) },
2250         { INT(dot11MeshMaxRetries) },
2251         { INT(dot11MeshRetryTimeout) },
2252         { INT(dot11MeshConfirmTimeout) },
2253         { INT(dot11MeshHoldingTimeout) },
2254 #endif /* CONFIG_MESH */
2255         { INT(wpa_ptk_rekey) },
2256         { INT(group_rekey) },
2257         { STR(bgscan) },
2258         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
2259 #ifdef CONFIG_P2P
2260         { FUNC(go_p2p_dev_addr) },
2261         { FUNC(p2p_client_list) },
2262         { FUNC(psk_list) },
2263 #endif /* CONFIG_P2P */
2264 #ifdef CONFIG_HT_OVERRIDES
2265         { INT_RANGE(disable_ht, 0, 1) },
2266         { INT_RANGE(disable_ht40, -1, 1) },
2267         { INT_RANGE(disable_sgi, 0, 1) },
2268         { INT_RANGE(disable_ldpc, 0, 1) },
2269         { INT_RANGE(ht40_intolerant, 0, 1) },
2270         { INT_RANGE(disable_max_amsdu, -1, 1) },
2271         { INT_RANGE(ampdu_factor, -1, 3) },
2272         { INT_RANGE(ampdu_density, -1, 7) },
2273         { STR(ht_mcs) },
2274 #endif /* CONFIG_HT_OVERRIDES */
2275 #ifdef CONFIG_VHT_OVERRIDES
2276         { INT_RANGE(disable_vht, 0, 1) },
2277         { INT(vht_capa) },
2278         { INT(vht_capa_mask) },
2279         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
2280         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
2281         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
2282         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
2283         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
2284         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
2285         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
2286         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
2287         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
2288         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
2289         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
2290         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
2291         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
2292         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
2293         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
2294         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
2295 #endif /* CONFIG_VHT_OVERRIDES */
2296         { INT(ap_max_inactivity) },
2297         { INT(dtim_period) },
2298         { INT(beacon_int) },
2299 #ifdef CONFIG_MACSEC
2300         { INT_RANGE(macsec_policy, 0, 1) },
2301         { INT_RANGE(macsec_integ_only, 0, 1) },
2302         { INT_RANGE(macsec_port, 1, 65534) },
2303         { INT_RANGE(mka_priority, 0, 255) },
2304         { FUNC_KEY(mka_cak) },
2305         { FUNC_KEY(mka_ckn) },
2306 #endif /* CONFIG_MACSEC */
2307 #ifdef CONFIG_HS20
2308         { INT(update_identifier) },
2309         { STR_RANGE(roaming_consortium_selection, 0, MAX_ROAMING_CONS_OI_LEN) },
2310 #endif /* CONFIG_HS20 */
2311         { INT_RANGE(mac_addr, 0, 2) },
2312         { INT_RANGE(pbss, 0, 2) },
2313         { INT_RANGE(wps_disabled, 0, 1) },
2314         { INT_RANGE(fils_dh_group, 0, 65535) },
2315 #ifdef CONFIG_DPP
2316         { STR(dpp_connector) },
2317         { STR_LEN(dpp_netaccesskey) },
2318         { INT(dpp_netaccesskey_expiry) },
2319         { STR_LEN(dpp_csign) },
2320 #endif /* CONFIG_DPP */
2321         { INT_RANGE(owe_group, 0, 65535) },
2322         { INT_RANGE(owe_only, 0, 1) },
2323 };
2324
2325 #undef OFFSET
2326 #undef _STR
2327 #undef STR
2328 #undef STR_KEY
2329 #undef _STR_LEN
2330 #undef STR_LEN
2331 #undef STR_LEN_KEY
2332 #undef _STR_RANGE
2333 #undef STR_RANGE
2334 #undef STR_RANGE_KEY
2335 #undef _INT
2336 #undef INT
2337 #undef INT_RANGE
2338 #undef _FUNC
2339 #undef FUNC
2340 #undef FUNC_KEY
2341 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
2342
2343
2344 /**
2345  * wpa_config_add_prio_network - Add a network to priority lists
2346  * @config: Configuration data from wpa_config_read()
2347  * @ssid: Pointer to the network configuration to be added to the list
2348  * Returns: 0 on success, -1 on failure
2349  *
2350  * This function is used to add a network block to the priority list of
2351  * networks. This must be called for each network when reading in the full
2352  * configuration. In addition, this can be used indirectly when updating
2353  * priorities by calling wpa_config_update_prio_list().
2354  */
2355 int wpa_config_add_prio_network(struct wpa_config *config,
2356                                 struct wpa_ssid *ssid)
2357 {
2358         int prio;
2359         struct wpa_ssid *prev, **nlist;
2360
2361         /*
2362          * Add to an existing priority list if one is available for the
2363          * configured priority level for this network.
2364          */
2365         for (prio = 0; prio < config->num_prio; prio++) {
2366                 prev = config->pssid[prio];
2367                 if (prev->priority == ssid->priority) {
2368                         while (prev->pnext)
2369                                 prev = prev->pnext;
2370                         prev->pnext = ssid;
2371                         return 0;
2372                 }
2373         }
2374
2375         /* First network for this priority - add a new priority list */
2376         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2377                                  sizeof(struct wpa_ssid *));
2378         if (nlist == NULL)
2379                 return -1;
2380
2381         for (prio = 0; prio < config->num_prio; prio++) {
2382                 if (nlist[prio]->priority < ssid->priority) {
2383                         os_memmove(&nlist[prio + 1], &nlist[prio],
2384                                    (config->num_prio - prio) *
2385                                    sizeof(struct wpa_ssid *));
2386                         break;
2387                 }
2388         }
2389
2390         nlist[prio] = ssid;
2391         config->num_prio++;
2392         config->pssid = nlist;
2393
2394         return 0;
2395 }
2396
2397
2398 /**
2399  * wpa_config_update_prio_list - Update network priority list
2400  * @config: Configuration data from wpa_config_read()
2401  * Returns: 0 on success, -1 on failure
2402  *
2403  * This function is called to update the priority list of networks in the
2404  * configuration when a network is being added or removed. This is also called
2405  * if a priority for a network is changed.
2406  */
2407 int wpa_config_update_prio_list(struct wpa_config *config)
2408 {
2409         struct wpa_ssid *ssid;
2410         int ret = 0;
2411
2412         os_free(config->pssid);
2413         config->pssid = NULL;
2414         config->num_prio = 0;
2415
2416         ssid = config->ssid;
2417         while (ssid) {
2418                 ssid->pnext = NULL;
2419                 if (wpa_config_add_prio_network(config, ssid) < 0)
2420                         ret = -1;
2421                 ssid = ssid->next;
2422         }
2423
2424         return ret;
2425 }
2426
2427
2428 #ifdef IEEE8021X_EAPOL
2429 static void eap_peer_config_free(struct eap_peer_config *eap)
2430 {
2431         os_free(eap->eap_methods);
2432         bin_clear_free(eap->identity, eap->identity_len);
2433         os_free(eap->anonymous_identity);
2434         os_free(eap->imsi_identity);
2435         bin_clear_free(eap->password, eap->password_len);
2436         os_free(eap->ca_cert);
2437         os_free(eap->ca_path);
2438         os_free(eap->client_cert);
2439         os_free(eap->private_key);
2440         str_clear_free(eap->private_key_passwd);
2441         os_free(eap->dh_file);
2442         os_free(eap->subject_match);
2443         os_free(eap->altsubject_match);
2444         os_free(eap->domain_suffix_match);
2445         os_free(eap->domain_match);
2446         os_free(eap->ca_cert2);
2447         os_free(eap->ca_path2);
2448         os_free(eap->client_cert2);
2449         os_free(eap->private_key2);
2450         str_clear_free(eap->private_key2_passwd);
2451         os_free(eap->dh_file2);
2452         os_free(eap->subject_match2);
2453         os_free(eap->altsubject_match2);
2454         os_free(eap->domain_suffix_match2);
2455         os_free(eap->domain_match2);
2456         os_free(eap->phase1);
2457         os_free(eap->phase2);
2458         os_free(eap->pcsc);
2459         str_clear_free(eap->pin);
2460         os_free(eap->engine_id);
2461         os_free(eap->key_id);
2462         os_free(eap->cert_id);
2463         os_free(eap->ca_cert_id);
2464         os_free(eap->key2_id);
2465         os_free(eap->cert2_id);
2466         os_free(eap->ca_cert2_id);
2467         str_clear_free(eap->pin2);
2468         os_free(eap->engine2_id);
2469         os_free(eap->otp);
2470         os_free(eap->pending_req_otp);
2471         os_free(eap->pac_file);
2472         bin_clear_free(eap->new_password, eap->new_password_len);
2473         str_clear_free(eap->external_sim_resp);
2474         os_free(eap->openssl_ciphers);
2475 }
2476 #endif /* IEEE8021X_EAPOL */
2477
2478
2479 /**
2480  * wpa_config_free_ssid - Free network/ssid configuration data
2481  * @ssid: Configuration data for the network
2482  *
2483  * This function frees all resources allocated for the network configuration
2484  * data.
2485  */
2486 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2487 {
2488         struct psk_list_entry *psk;
2489
2490         os_free(ssid->ssid);
2491         str_clear_free(ssid->passphrase);
2492         os_free(ssid->ext_psk);
2493         str_clear_free(ssid->sae_password);
2494         os_free(ssid->sae_password_id);
2495 #ifdef IEEE8021X_EAPOL
2496         eap_peer_config_free(&ssid->eap);
2497 #endif /* IEEE8021X_EAPOL */
2498         os_free(ssid->id_str);
2499         os_free(ssid->scan_freq);
2500         os_free(ssid->freq_list);
2501         os_free(ssid->bgscan);
2502         os_free(ssid->p2p_client_list);
2503         os_free(ssid->bssid_blacklist);
2504         os_free(ssid->bssid_whitelist);
2505 #ifdef CONFIG_HT_OVERRIDES
2506         os_free(ssid->ht_mcs);
2507 #endif /* CONFIG_HT_OVERRIDES */
2508 #ifdef CONFIG_MESH
2509         os_free(ssid->mesh_basic_rates);
2510 #endif /* CONFIG_MESH */
2511 #ifdef CONFIG_HS20
2512         os_free(ssid->roaming_consortium_selection);
2513 #endif /* CONFIG_HS20 */
2514         os_free(ssid->dpp_connector);
2515         bin_clear_free(ssid->dpp_netaccesskey, ssid->dpp_netaccesskey_len);
2516         os_free(ssid->dpp_csign);
2517         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2518                                     list))) {
2519                 dl_list_del(&psk->list);
2520                 bin_clear_free(psk, sizeof(*psk));
2521         }
2522         bin_clear_free(ssid, sizeof(*ssid));
2523 }
2524
2525
2526 void wpa_config_free_cred(struct wpa_cred *cred)
2527 {
2528         size_t i;
2529
2530         os_free(cred->realm);
2531         str_clear_free(cred->username);
2532         str_clear_free(cred->password);
2533         os_free(cred->ca_cert);
2534         os_free(cred->client_cert);
2535         os_free(cred->private_key);
2536         str_clear_free(cred->private_key_passwd);
2537         os_free(cred->imsi);
2538         str_clear_free(cred->milenage);
2539         for (i = 0; i < cred->num_domain; i++)
2540                 os_free(cred->domain[i]);
2541         os_free(cred->domain);
2542         os_free(cred->domain_suffix_match);
2543         os_free(cred->eap_method);
2544         os_free(cred->phase1);
2545         os_free(cred->phase2);
2546         os_free(cred->excluded_ssid);
2547         os_free(cred->roaming_partner);
2548         os_free(cred->provisioning_sp);
2549         for (i = 0; i < cred->num_req_conn_capab; i++)
2550                 os_free(cred->req_conn_capab_port[i]);
2551         os_free(cred->req_conn_capab_port);
2552         os_free(cred->req_conn_capab_proto);
2553         os_free(cred);
2554 }
2555
2556
2557 void wpa_config_flush_blobs(struct wpa_config *config)
2558 {
2559 #ifndef CONFIG_NO_CONFIG_BLOBS
2560         struct wpa_config_blob *blob, *prev;
2561
2562         blob = config->blobs;
2563         config->blobs = NULL;
2564         while (blob) {
2565                 prev = blob;
2566                 blob = blob->next;
2567                 wpa_config_free_blob(prev);
2568         }
2569 #endif /* CONFIG_NO_CONFIG_BLOBS */
2570 }
2571
2572
2573 /**
2574  * wpa_config_free - Free configuration data
2575  * @config: Configuration data from wpa_config_read()
2576  *
2577  * This function frees all resources allocated for the configuration data by
2578  * wpa_config_read().
2579  */
2580 void wpa_config_free(struct wpa_config *config)
2581 {
2582         struct wpa_ssid *ssid, *prev = NULL;
2583         struct wpa_cred *cred, *cprev;
2584         int i;
2585
2586         ssid = config->ssid;
2587         while (ssid) {
2588                 prev = ssid;
2589                 ssid = ssid->next;
2590                 wpa_config_free_ssid(prev);
2591         }
2592
2593         cred = config->cred;
2594         while (cred) {
2595                 cprev = cred;
2596                 cred = cred->next;
2597                 wpa_config_free_cred(cprev);
2598         }
2599
2600         wpa_config_flush_blobs(config);
2601
2602         wpabuf_free(config->wps_vendor_ext_m1);
2603         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2604                 wpabuf_free(config->wps_vendor_ext[i]);
2605         os_free(config->ctrl_interface);
2606         os_free(config->ctrl_interface_group);
2607         os_free(config->opensc_engine_path);
2608         os_free(config->pkcs11_engine_path);
2609         os_free(config->pkcs11_module_path);
2610         os_free(config->openssl_ciphers);
2611         os_free(config->pcsc_reader);
2612         str_clear_free(config->pcsc_pin);
2613         os_free(config->driver_param);
2614         os_free(config->device_name);
2615         os_free(config->manufacturer);
2616         os_free(config->model_name);
2617         os_free(config->model_number);
2618         os_free(config->serial_number);
2619         os_free(config->config_methods);
2620         os_free(config->p2p_ssid_postfix);
2621         os_free(config->pssid);
2622         os_free(config->p2p_pref_chan);
2623         os_free(config->p2p_no_go_freq.range);
2624         os_free(config->autoscan);
2625         os_free(config->freq_list);
2626         wpabuf_free(config->wps_nfc_dh_pubkey);
2627         wpabuf_free(config->wps_nfc_dh_privkey);
2628         wpabuf_free(config->wps_nfc_dev_pw);
2629         os_free(config->ext_password_backend);
2630         os_free(config->sae_groups);
2631         wpabuf_free(config->ap_vendor_elements);
2632         os_free(config->osu_dir);
2633         os_free(config->bgscan);
2634         os_free(config->wowlan_triggers);
2635         os_free(config->fst_group_id);
2636         os_free(config->sched_scan_plans);
2637 #ifdef CONFIG_MBO
2638         os_free(config->non_pref_chan);
2639 #endif /* CONFIG_MBO */
2640
2641         os_free(config);
2642 }
2643
2644
2645 /**
2646  * wpa_config_foreach_network - Iterate over each configured network
2647  * @config: Configuration data from wpa_config_read()
2648  * @func: Callback function to process each network
2649  * @arg: Opaque argument to pass to callback function
2650  *
2651  * Iterate over the set of configured networks calling the specified
2652  * function for each item. We guard against callbacks removing the
2653  * supplied network.
2654  */
2655 void wpa_config_foreach_network(struct wpa_config *config,
2656                                 void (*func)(void *, struct wpa_ssid *),
2657                                 void *arg)
2658 {
2659         struct wpa_ssid *ssid, *next;
2660
2661         ssid = config->ssid;
2662         while (ssid) {
2663                 next = ssid->next;
2664                 func(arg, ssid);
2665                 ssid = next;
2666         }
2667 }
2668
2669
2670 /**
2671  * wpa_config_get_network - Get configured network based on id
2672  * @config: Configuration data from wpa_config_read()
2673  * @id: Unique network id to search for
2674  * Returns: Network configuration or %NULL if not found
2675  */
2676 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2677 {
2678         struct wpa_ssid *ssid;
2679
2680         ssid = config->ssid;
2681         while (ssid) {
2682                 if (id == ssid->id)
2683                         break;
2684                 ssid = ssid->next;
2685         }
2686
2687         return ssid;
2688 }
2689
2690
2691 /**
2692  * wpa_config_add_network - Add a new network with empty configuration
2693  * @config: Configuration data from wpa_config_read()
2694  * Returns: The new network configuration or %NULL if operation failed
2695  */
2696 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2697 {
2698         int id;
2699         struct wpa_ssid *ssid, *last = NULL;
2700
2701         id = -1;
2702         ssid = config->ssid;
2703         while (ssid) {
2704                 if (ssid->id > id)
2705                         id = ssid->id;
2706                 last = ssid;
2707                 ssid = ssid->next;
2708         }
2709         id++;
2710
2711         ssid = os_zalloc(sizeof(*ssid));
2712         if (ssid == NULL)
2713                 return NULL;
2714         ssid->id = id;
2715         dl_list_init(&ssid->psk_list);
2716         if (last)
2717                 last->next = ssid;
2718         else
2719                 config->ssid = ssid;
2720
2721         wpa_config_update_prio_list(config);
2722
2723         return ssid;
2724 }
2725
2726
2727 /**
2728  * wpa_config_remove_network - Remove a configured network based on id
2729  * @config: Configuration data from wpa_config_read()
2730  * @id: Unique network id to search for
2731  * Returns: 0 on success, or -1 if the network was not found
2732  */
2733 int wpa_config_remove_network(struct wpa_config *config, int id)
2734 {
2735         struct wpa_ssid *ssid, *prev = NULL;
2736
2737         ssid = config->ssid;
2738         while (ssid) {
2739                 if (id == ssid->id)
2740                         break;
2741                 prev = ssid;
2742                 ssid = ssid->next;
2743         }
2744
2745         if (ssid == NULL)
2746                 return -1;
2747
2748         if (prev)
2749                 prev->next = ssid->next;
2750         else
2751                 config->ssid = ssid->next;
2752
2753         wpa_config_update_prio_list(config);
2754         wpa_config_free_ssid(ssid);
2755         return 0;
2756 }
2757
2758
2759 /**
2760  * wpa_config_set_network_defaults - Set network default values
2761  * @ssid: Pointer to network configuration data
2762  */
2763 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2764 {
2765         ssid->proto = DEFAULT_PROTO;
2766         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2767         ssid->group_cipher = DEFAULT_GROUP;
2768         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2769         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2770         ssid->ht = 1;
2771 #ifdef IEEE8021X_EAPOL
2772         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2773         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2774         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2775         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2776 #endif /* IEEE8021X_EAPOL */
2777 #ifdef CONFIG_MESH
2778         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2779         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2780         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2781         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2782         ssid->mesh_rssi_threshold = DEFAULT_MESH_RSSI_THRESHOLD;
2783 #endif /* CONFIG_MESH */
2784 #ifdef CONFIG_HT_OVERRIDES
2785         ssid->disable_ht = DEFAULT_DISABLE_HT;
2786         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2787         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2788         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2789         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2790         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2791         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2792 #endif /* CONFIG_HT_OVERRIDES */
2793 #ifdef CONFIG_VHT_OVERRIDES
2794         ssid->vht_rx_mcs_nss_1 = -1;
2795         ssid->vht_rx_mcs_nss_2 = -1;
2796         ssid->vht_rx_mcs_nss_3 = -1;
2797         ssid->vht_rx_mcs_nss_4 = -1;
2798         ssid->vht_rx_mcs_nss_5 = -1;
2799         ssid->vht_rx_mcs_nss_6 = -1;
2800         ssid->vht_rx_mcs_nss_7 = -1;
2801         ssid->vht_rx_mcs_nss_8 = -1;
2802         ssid->vht_tx_mcs_nss_1 = -1;
2803         ssid->vht_tx_mcs_nss_2 = -1;
2804         ssid->vht_tx_mcs_nss_3 = -1;
2805         ssid->vht_tx_mcs_nss_4 = -1;
2806         ssid->vht_tx_mcs_nss_5 = -1;
2807         ssid->vht_tx_mcs_nss_6 = -1;
2808         ssid->vht_tx_mcs_nss_7 = -1;
2809         ssid->vht_tx_mcs_nss_8 = -1;
2810 #endif /* CONFIG_VHT_OVERRIDES */
2811         ssid->proactive_key_caching = -1;
2812 #ifdef CONFIG_IEEE80211W
2813         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2814 #endif /* CONFIG_IEEE80211W */
2815 #ifdef CONFIG_MACSEC
2816         ssid->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
2817 #endif /* CONFIG_MACSEC */
2818         ssid->mac_addr = -1;
2819 }
2820
2821
2822 /**
2823  * wpa_config_set - Set a variable in network configuration
2824  * @ssid: Pointer to network configuration data
2825  * @var: Variable name, e.g., "ssid"
2826  * @value: Variable value
2827  * @line: Line number in configuration file or 0 if not used
2828  * Returns: 0 on success with possible change in the value, 1 on success with
2829  * no change to previously configured value, or -1 on failure
2830  *
2831  * This function can be used to set network configuration variables based on
2832  * both the configuration file and management interface input. The value
2833  * parameter must be in the same format as the text-based configuration file is
2834  * using. For example, strings are using double quotation marks.
2835  */
2836 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2837                    int line)
2838 {
2839         size_t i;
2840         int ret = 0;
2841
2842         if (ssid == NULL || var == NULL || value == NULL)
2843                 return -1;
2844
2845         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2846                 const struct parse_data *field = &ssid_fields[i];
2847                 if (os_strcmp(var, field->name) != 0)
2848                         continue;
2849
2850                 ret = field->parser(field, ssid, line, value);
2851                 if (ret < 0) {
2852                         if (line) {
2853                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2854                                            "parse %s '%s'.", line, var, value);
2855                         }
2856                         ret = -1;
2857                 }
2858                 break;
2859         }
2860         if (i == NUM_SSID_FIELDS) {
2861                 if (line) {
2862                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2863                                    "'%s'.", line, var);
2864                 }
2865                 ret = -1;
2866         }
2867
2868         return ret;
2869 }
2870
2871
2872 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2873                           const char *value)
2874 {
2875         size_t len;
2876         char *buf;
2877         int ret;
2878
2879         len = os_strlen(value);
2880         buf = os_malloc(len + 3);
2881         if (buf == NULL)
2882                 return -1;
2883         buf[0] = '"';
2884         os_memcpy(buf + 1, value, len);
2885         buf[len + 1] = '"';
2886         buf[len + 2] = '\0';
2887         ret = wpa_config_set(ssid, var, buf, 0);
2888         os_free(buf);
2889         return ret;
2890 }
2891
2892
2893 /**
2894  * wpa_config_get_all - Get all options from network configuration
2895  * @ssid: Pointer to network configuration data
2896  * @get_keys: Determines if keys/passwords will be included in returned list
2897  *      (if they may be exported)
2898  * Returns: %NULL terminated list of all set keys and their values in the form
2899  * of [key1, val1, key2, val2, ... , NULL]
2900  *
2901  * This function can be used to get list of all configured network properties.
2902  * The caller is responsible for freeing the returned list and all its
2903  * elements.
2904  */
2905 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2906 {
2907 #ifdef NO_CONFIG_WRITE
2908         return NULL;
2909 #else /* NO_CONFIG_WRITE */
2910         const struct parse_data *field;
2911         char *key, *value;
2912         size_t i;
2913         char **props;
2914         int fields_num;
2915
2916         get_keys = get_keys && ssid->export_keys;
2917
2918         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2919         if (!props)
2920                 return NULL;
2921
2922         fields_num = 0;
2923         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2924                 field = &ssid_fields[i];
2925                 if (field->key_data && !get_keys)
2926                         continue;
2927                 value = field->writer(field, ssid);
2928                 if (value == NULL)
2929                         continue;
2930                 if (os_strlen(value) == 0) {
2931                         os_free(value);
2932                         continue;
2933                 }
2934
2935                 key = os_strdup(field->name);
2936                 if (key == NULL) {
2937                         os_free(value);
2938                         goto err;
2939                 }
2940
2941                 props[fields_num * 2] = key;
2942                 props[fields_num * 2 + 1] = value;
2943
2944                 fields_num++;
2945         }
2946
2947         return props;
2948
2949 err:
2950         for (i = 0; props[i]; i++)
2951                 os_free(props[i]);
2952         os_free(props);
2953         return NULL;
2954 #endif /* NO_CONFIG_WRITE */
2955 }
2956
2957
2958 #ifndef NO_CONFIG_WRITE
2959 /**
2960  * wpa_config_get - Get a variable in network configuration
2961  * @ssid: Pointer to network configuration data
2962  * @var: Variable name, e.g., "ssid"
2963  * Returns: Value of the variable or %NULL on failure
2964  *
2965  * This function can be used to get network configuration variables. The
2966  * returned value is a copy of the configuration variable in text format, i.e,.
2967  * the same format that the text-based configuration file and wpa_config_set()
2968  * are using for the value. The caller is responsible for freeing the returned
2969  * value.
2970  */
2971 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2972 {
2973         size_t i;
2974
2975         if (ssid == NULL || var == NULL)
2976                 return NULL;
2977
2978         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2979                 const struct parse_data *field = &ssid_fields[i];
2980                 if (os_strcmp(var, field->name) == 0) {
2981                         char *ret = field->writer(field, ssid);
2982
2983                         if (ret && has_newline(ret)) {
2984                                 wpa_printf(MSG_ERROR,
2985                                            "Found newline in value for %s; not returning it",
2986                                            var);
2987                                 os_free(ret);
2988                                 ret = NULL;
2989                         }
2990
2991                         return ret;
2992                 }
2993         }
2994
2995         return NULL;
2996 }
2997
2998
2999 /**
3000  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
3001  * @ssid: Pointer to network configuration data
3002  * @var: Variable name, e.g., "ssid"
3003  * Returns: Value of the variable or %NULL on failure
3004  *
3005  * This function can be used to get network configuration variable like
3006  * wpa_config_get(). The only difference is that this functions does not expose
3007  * key/password material from the configuration. In case a key/password field
3008  * is requested, the returned value is an empty string or %NULL if the variable
3009  * is not set or "*" if the variable is set (regardless of its value). The
3010  * returned value is a copy of the configuration variable in text format, i.e,.
3011  * the same format that the text-based configuration file and wpa_config_set()
3012  * are using for the value. The caller is responsible for freeing the returned
3013  * value.
3014  */
3015 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
3016 {
3017         size_t i;
3018
3019         if (ssid == NULL || var == NULL)
3020                 return NULL;
3021
3022         for (i = 0; i < NUM_SSID_FIELDS; i++) {
3023                 const struct parse_data *field = &ssid_fields[i];
3024                 if (os_strcmp(var, field->name) == 0) {
3025                         char *res = field->writer(field, ssid);
3026                         if (field->key_data) {
3027                                 if (res && res[0]) {
3028                                         wpa_printf(MSG_DEBUG, "Do not allow "
3029                                                    "key_data field to be "
3030                                                    "exposed");
3031                                         str_clear_free(res);
3032                                         return os_strdup("*");
3033                                 }
3034
3035                                 os_free(res);
3036                                 return NULL;
3037                         }
3038                         return res;
3039                 }
3040         }
3041
3042         return NULL;
3043 }
3044 #endif /* NO_CONFIG_WRITE */
3045
3046
3047 /**
3048  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
3049  * @ssid: Pointer to network configuration data
3050  *
3051  * This function must be called to update WPA PSK when either SSID or the
3052  * passphrase has changed for the network configuration.
3053  */
3054 void wpa_config_update_psk(struct wpa_ssid *ssid)
3055 {
3056 #ifndef CONFIG_NO_PBKDF2
3057         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
3058                     ssid->psk, PMK_LEN);
3059         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
3060                         ssid->psk, PMK_LEN);
3061         ssid->psk_set = 1;
3062 #endif /* CONFIG_NO_PBKDF2 */
3063 }
3064
3065
3066 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
3067                                               const char *value)
3068 {
3069         u8 *proto;
3070         int **port;
3071         int *ports, *nports;
3072         const char *pos;
3073         unsigned int num_ports;
3074
3075         proto = os_realloc_array(cred->req_conn_capab_proto,
3076                                  cred->num_req_conn_capab + 1, sizeof(u8));
3077         if (proto == NULL)
3078                 return -1;
3079         cred->req_conn_capab_proto = proto;
3080
3081         port = os_realloc_array(cred->req_conn_capab_port,
3082                                 cred->num_req_conn_capab + 1, sizeof(int *));
3083         if (port == NULL)
3084                 return -1;
3085         cred->req_conn_capab_port = port;
3086
3087         proto[cred->num_req_conn_capab] = atoi(value);
3088
3089         pos = os_strchr(value, ':');
3090         if (pos == NULL) {
3091                 port[cred->num_req_conn_capab] = NULL;
3092                 cred->num_req_conn_capab++;
3093                 return 0;
3094         }
3095         pos++;
3096
3097         ports = NULL;
3098         num_ports = 0;
3099
3100         while (*pos) {
3101                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3102                 if (nports == NULL) {
3103                         os_free(ports);
3104                         return -1;
3105                 }
3106                 ports = nports;
3107                 ports[num_ports++] = atoi(pos);
3108
3109                 pos = os_strchr(pos, ',');
3110                 if (pos == NULL)
3111                         break;
3112                 pos++;
3113         }
3114
3115         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3116         if (nports == NULL) {
3117                 os_free(ports);
3118                 return -1;
3119         }
3120         ports = nports;
3121         ports[num_ports] = -1;
3122
3123         port[cred->num_req_conn_capab] = ports;
3124         cred->num_req_conn_capab++;
3125         return 0;
3126 }
3127
3128
3129 static int wpa_config_set_cred_roaming_consortiums(struct wpa_cred *cred,
3130                                                    const char *value)
3131 {
3132         u8 roaming_consortiums[MAX_ROAMING_CONS][MAX_ROAMING_CONS_OI_LEN];
3133         size_t roaming_consortiums_len[MAX_ROAMING_CONS];
3134         unsigned int num_roaming_consortiums = 0;
3135         const char *pos, *end;
3136         size_t len;
3137
3138         os_memset(roaming_consortiums, 0, sizeof(roaming_consortiums));
3139         os_memset(roaming_consortiums_len, 0, sizeof(roaming_consortiums_len));
3140
3141         for (pos = value;;) {
3142                 end = os_strchr(pos, ',');
3143                 len = end ? (size_t) (end - pos) : os_strlen(pos);
3144                 if (!end && len == 0)
3145                         break;
3146                 if (len == 0 || (len & 1) != 0 ||
3147                     len / 2 > MAX_ROAMING_CONS_OI_LEN ||
3148                     hexstr2bin(pos,
3149                                roaming_consortiums[num_roaming_consortiums],
3150                                len / 2) < 0) {
3151                         wpa_printf(MSG_INFO,
3152                                    "Invalid roaming_consortiums entry: %s",
3153                                    pos);
3154                         return -1;
3155                 }
3156                 roaming_consortiums_len[num_roaming_consortiums] = len / 2;
3157                 num_roaming_consortiums++;
3158
3159                 if (!end)
3160                         break;
3161
3162                 if (num_roaming_consortiums >= MAX_ROAMING_CONS) {
3163                         wpa_printf(MSG_INFO,
3164                                    "Too many roaming_consortiums OIs");
3165                         return -1;
3166                 }
3167
3168                 pos = end + 1;
3169         }
3170
3171         os_memcpy(cred->roaming_consortiums, roaming_consortiums,
3172                   sizeof(roaming_consortiums));
3173         os_memcpy(cred->roaming_consortiums_len, roaming_consortiums_len,
3174                   sizeof(roaming_consortiums_len));
3175         cred->num_roaming_consortiums = num_roaming_consortiums;
3176
3177         return 0;
3178 }
3179
3180
3181 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
3182                         const char *value, int line)
3183 {
3184         char *val;
3185         size_t len;
3186         int res;
3187
3188         if (os_strcmp(var, "temporary") == 0) {
3189                 cred->temporary = atoi(value);
3190                 return 0;
3191         }
3192
3193         if (os_strcmp(var, "priority") == 0) {
3194                 cred->priority = atoi(value);
3195                 return 0;
3196         }
3197
3198         if (os_strcmp(var, "sp_priority") == 0) {
3199                 int prio = atoi(value);
3200                 if (prio < 0 || prio > 255)
3201                         return -1;
3202                 cred->sp_priority = prio;
3203                 return 0;
3204         }
3205
3206         if (os_strcmp(var, "pcsc") == 0) {
3207                 cred->pcsc = atoi(value);
3208                 return 0;
3209         }
3210
3211         if (os_strcmp(var, "eap") == 0) {
3212                 struct eap_method_type method;
3213                 method.method = eap_peer_get_type(value, &method.vendor);
3214                 if (method.vendor == EAP_VENDOR_IETF &&
3215                     method.method == EAP_TYPE_NONE) {
3216                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
3217                                    "for a credential", line, value);
3218                         return -1;
3219                 }
3220                 os_free(cred->eap_method);
3221                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
3222                 if (cred->eap_method == NULL)
3223                         return -1;
3224                 os_memcpy(cred->eap_method, &method, sizeof(method));
3225                 return 0;
3226         }
3227
3228         if (os_strcmp(var, "password") == 0 &&
3229             os_strncmp(value, "ext:", 4) == 0) {
3230                 if (has_newline(value))
3231                         return -1;
3232                 str_clear_free(cred->password);
3233                 cred->password = os_strdup(value);
3234                 cred->ext_password = 1;
3235                 return 0;
3236         }
3237
3238         if (os_strcmp(var, "update_identifier") == 0) {
3239                 cred->update_identifier = atoi(value);
3240                 return 0;
3241         }
3242
3243         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
3244                 cred->min_dl_bandwidth_home = atoi(value);
3245                 return 0;
3246         }
3247
3248         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
3249                 cred->min_ul_bandwidth_home = atoi(value);
3250                 return 0;
3251         }
3252
3253         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
3254                 cred->min_dl_bandwidth_roaming = atoi(value);
3255                 return 0;
3256         }
3257
3258         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
3259                 cred->min_ul_bandwidth_roaming = atoi(value);
3260                 return 0;
3261         }
3262
3263         if (os_strcmp(var, "max_bss_load") == 0) {
3264                 cred->max_bss_load = atoi(value);
3265                 return 0;
3266         }
3267
3268         if (os_strcmp(var, "req_conn_capab") == 0)
3269                 return wpa_config_set_cred_req_conn_capab(cred, value);
3270
3271         if (os_strcmp(var, "ocsp") == 0) {
3272                 cred->ocsp = atoi(value);
3273                 return 0;
3274         }
3275
3276         if (os_strcmp(var, "sim_num") == 0) {
3277                 cred->sim_num = atoi(value);
3278                 return 0;
3279         }
3280
3281         val = wpa_config_parse_string(value, &len);
3282         if (val == NULL ||
3283             (os_strcmp(var, "excluded_ssid") != 0 &&
3284              os_strcmp(var, "roaming_consortium") != 0 &&
3285              os_strcmp(var, "required_roaming_consortium") != 0 &&
3286              has_newline(val))) {
3287                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
3288                            "value '%s'.", line, var, value);
3289                 os_free(val);
3290                 return -1;
3291         }
3292
3293         if (os_strcmp(var, "realm") == 0) {
3294                 os_free(cred->realm);
3295                 cred->realm = val;
3296                 return 0;
3297         }
3298
3299         if (os_strcmp(var, "username") == 0) {
3300                 str_clear_free(cred->username);
3301                 cred->username = val;
3302                 return 0;
3303         }
3304
3305         if (os_strcmp(var, "password") == 0) {
3306                 str_clear_free(cred->password);
3307                 cred->password = val;
3308                 cred->ext_password = 0;
3309                 return 0;
3310         }
3311
3312         if (os_strcmp(var, "ca_cert") == 0) {
3313                 os_free(cred->ca_cert);
3314                 cred->ca_cert = val;
3315                 return 0;
3316         }
3317
3318         if (os_strcmp(var, "client_cert") == 0) {
3319                 os_free(cred->client_cert);
3320                 cred->client_cert = val;
3321                 return 0;
3322         }
3323
3324         if (os_strcmp(var, "private_key") == 0) {
3325                 os_free(cred->private_key);
3326                 cred->private_key = val;
3327                 return 0;
3328         }
3329
3330         if (os_strcmp(var, "private_key_passwd") == 0) {
3331                 str_clear_free(cred->private_key_passwd);
3332                 cred->private_key_passwd = val;
3333                 return 0;
3334         }
3335
3336         if (os_strcmp(var, "imsi") == 0) {
3337                 os_free(cred->imsi);
3338                 cred->imsi = val;
3339                 return 0;
3340         }
3341
3342         if (os_strcmp(var, "milenage") == 0) {
3343                 str_clear_free(cred->milenage);
3344                 cred->milenage = val;
3345                 return 0;
3346         }
3347
3348         if (os_strcmp(var, "domain_suffix_match") == 0) {
3349                 os_free(cred->domain_suffix_match);
3350                 cred->domain_suffix_match = val;
3351                 return 0;
3352         }
3353
3354         if (os_strcmp(var, "domain") == 0) {
3355                 char **new_domain;
3356                 new_domain = os_realloc_array(cred->domain,
3357                                               cred->num_domain + 1,
3358                                               sizeof(char *));
3359                 if (new_domain == NULL) {
3360                         os_free(val);
3361                         return -1;
3362                 }
3363                 new_domain[cred->num_domain++] = val;
3364                 cred->domain = new_domain;
3365                 return 0;
3366         }
3367
3368         if (os_strcmp(var, "phase1") == 0) {
3369                 os_free(cred->phase1);
3370                 cred->phase1 = val;
3371                 return 0;
3372         }
3373
3374         if (os_strcmp(var, "phase2") == 0) {
3375                 os_free(cred->phase2);
3376                 cred->phase2 = val;
3377                 return 0;
3378         }
3379
3380         if (os_strcmp(var, "roaming_consortium") == 0) {
3381                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
3382                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3383                                    "roaming_consortium length %d (3..15 "
3384                                    "expected)", line, (int) len);
3385                         os_free(val);
3386                         return -1;
3387                 }
3388                 os_memcpy(cred->roaming_consortium, val, len);
3389                 cred->roaming_consortium_len = len;
3390                 os_free(val);
3391                 return 0;
3392         }
3393
3394         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3395                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
3396                 {
3397                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3398                                    "required_roaming_consortium length %d "
3399                                    "(3..15 expected)", line, (int) len);
3400                         os_free(val);
3401                         return -1;
3402                 }
3403                 os_memcpy(cred->required_roaming_consortium, val, len);
3404                 cred->required_roaming_consortium_len = len;
3405                 os_free(val);
3406                 return 0;
3407         }
3408
3409         if (os_strcmp(var, "roaming_consortiums") == 0) {
3410                 res = wpa_config_set_cred_roaming_consortiums(cred, val);
3411                 if (res < 0)
3412                         wpa_printf(MSG_ERROR,
3413                                    "Line %d: invalid roaming_consortiums",
3414                                    line);
3415                 os_free(val);
3416                 return res;
3417         }
3418
3419         if (os_strcmp(var, "excluded_ssid") == 0) {
3420                 struct excluded_ssid *e;
3421
3422                 if (len > SSID_MAX_LEN) {
3423                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3424                                    "excluded_ssid length %d", line, (int) len);
3425                         os_free(val);
3426                         return -1;
3427                 }
3428
3429                 e = os_realloc_array(cred->excluded_ssid,
3430                                      cred->num_excluded_ssid + 1,
3431                                      sizeof(struct excluded_ssid));
3432                 if (e == NULL) {
3433                         os_free(val);
3434                         return -1;
3435                 }
3436                 cred->excluded_ssid = e;
3437
3438                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
3439                 os_memcpy(e->ssid, val, len);
3440                 e->ssid_len = len;
3441
3442                 os_free(val);
3443
3444                 return 0;
3445         }
3446
3447         if (os_strcmp(var, "roaming_partner") == 0) {
3448                 struct roaming_partner *p;
3449                 char *pos;
3450
3451                 p = os_realloc_array(cred->roaming_partner,
3452                                      cred->num_roaming_partner + 1,
3453                                      sizeof(struct roaming_partner));
3454                 if (p == NULL) {
3455                         os_free(val);
3456                         return -1;
3457                 }
3458                 cred->roaming_partner = p;
3459
3460                 p = &cred->roaming_partner[cred->num_roaming_partner];
3461
3462                 pos = os_strchr(val, ',');
3463                 if (pos == NULL) {
3464                         os_free(val);
3465                         return -1;
3466                 }
3467                 *pos++ = '\0';
3468                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3469                         os_free(val);
3470                         return -1;
3471                 }
3472                 os_memcpy(p->fqdn, val, pos - val);
3473
3474                 p->exact_match = atoi(pos);
3475
3476                 pos = os_strchr(pos, ',');
3477                 if (pos == NULL) {
3478                         os_free(val);
3479                         return -1;
3480                 }
3481                 *pos++ = '\0';
3482
3483                 p->priority = atoi(pos);
3484
3485                 pos = os_strchr(pos, ',');
3486                 if (pos == NULL) {
3487                         os_free(val);
3488                         return -1;
3489                 }
3490                 *pos++ = '\0';
3491
3492                 if (os_strlen(pos) >= sizeof(p->country)) {
3493                         os_free(val);
3494                         return -1;
3495                 }
3496                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3497
3498                 cred->num_roaming_partner++;
3499                 os_free(val);
3500
3501                 return 0;
3502         }
3503
3504         if (os_strcmp(var, "provisioning_sp") == 0) {
3505                 os_free(cred->provisioning_sp);
3506                 cred->provisioning_sp = val;
3507                 return 0;
3508         }
3509
3510         if (line) {
3511                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3512                            line, var);
3513         }
3514
3515         os_free(val);
3516
3517         return -1;
3518 }
3519
3520
3521 static char * alloc_int_str(int val)
3522 {
3523         const unsigned int bufsize = 20;
3524         char *buf;
3525         int res;
3526
3527         buf = os_malloc(bufsize);
3528         if (buf == NULL)
3529                 return NULL;
3530         res = os_snprintf(buf, bufsize, "%d", val);
3531         if (os_snprintf_error(bufsize, res)) {
3532                 os_free(buf);
3533                 buf = NULL;
3534         }
3535         return buf;
3536 }
3537
3538
3539 static char * alloc_strdup(const char *str)
3540 {
3541         if (str == NULL)
3542                 return NULL;
3543         return os_strdup(str);
3544 }
3545
3546
3547 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3548 {
3549         if (os_strcmp(var, "temporary") == 0)
3550                 return alloc_int_str(cred->temporary);
3551
3552         if (os_strcmp(var, "priority") == 0)
3553                 return alloc_int_str(cred->priority);
3554
3555         if (os_strcmp(var, "sp_priority") == 0)
3556                 return alloc_int_str(cred->sp_priority);
3557
3558         if (os_strcmp(var, "pcsc") == 0)
3559                 return alloc_int_str(cred->pcsc);
3560
3561         if (os_strcmp(var, "eap") == 0) {
3562                 if (!cred->eap_method)
3563                         return NULL;
3564                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3565                                                  cred->eap_method[0].method));
3566         }
3567
3568         if (os_strcmp(var, "update_identifier") == 0)
3569                 return alloc_int_str(cred->update_identifier);
3570
3571         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3572                 return alloc_int_str(cred->min_dl_bandwidth_home);
3573
3574         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3575                 return alloc_int_str(cred->min_ul_bandwidth_home);
3576
3577         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3578                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3579
3580         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3581                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3582
3583         if (os_strcmp(var, "max_bss_load") == 0)
3584                 return alloc_int_str(cred->max_bss_load);
3585
3586         if (os_strcmp(var, "req_conn_capab") == 0) {
3587                 unsigned int i;
3588                 char *buf, *end, *pos;
3589                 int ret;
3590
3591                 if (!cred->num_req_conn_capab)
3592                         return NULL;
3593
3594                 buf = os_malloc(4000);
3595                 if (buf == NULL)
3596                         return NULL;
3597                 pos = buf;
3598                 end = pos + 4000;
3599                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3600                         int *ports;
3601
3602                         ret = os_snprintf(pos, end - pos, "%s%u",
3603                                           i > 0 ? "\n" : "",
3604                                           cred->req_conn_capab_proto[i]);
3605                         if (os_snprintf_error(end - pos, ret))
3606                                 return buf;
3607                         pos += ret;
3608
3609                         ports = cred->req_conn_capab_port[i];
3610                         if (ports) {
3611                                 int j;
3612                                 for (j = 0; ports[j] != -1; j++) {
3613                                         ret = os_snprintf(pos, end - pos,
3614                                                           "%s%d",
3615                                                           j > 0 ? "," : ":",
3616                                                           ports[j]);
3617                                         if (os_snprintf_error(end - pos, ret))
3618                                                 return buf;
3619                                         pos += ret;
3620                                 }
3621                         }
3622                 }
3623
3624                 return buf;
3625         }
3626
3627         if (os_strcmp(var, "ocsp") == 0)
3628                 return alloc_int_str(cred->ocsp);
3629
3630         if (os_strcmp(var, "realm") == 0)
3631                 return alloc_strdup(cred->realm);
3632
3633         if (os_strcmp(var, "username") == 0)
3634                 return alloc_strdup(cred->username);
3635
3636         if (os_strcmp(var, "password") == 0) {
3637                 if (!cred->password)
3638                         return NULL;
3639                 return alloc_strdup("*");
3640         }
3641
3642         if (os_strcmp(var, "ca_cert") == 0)
3643                 return alloc_strdup(cred->ca_cert);
3644
3645         if (os_strcmp(var, "client_cert") == 0)
3646                 return alloc_strdup(cred->client_cert);
3647
3648         if (os_strcmp(var, "private_key") == 0)
3649                 return alloc_strdup(cred->private_key);
3650
3651         if (os_strcmp(var, "private_key_passwd") == 0) {
3652                 if (!cred->private_key_passwd)
3653                         return NULL;
3654                 return alloc_strdup("*");
3655         }
3656
3657         if (os_strcmp(var, "imsi") == 0)
3658                 return alloc_strdup(cred->imsi);
3659
3660         if (os_strcmp(var, "milenage") == 0) {
3661                 if (!(cred->milenage))
3662                         return NULL;
3663                 return alloc_strdup("*");
3664         }
3665
3666         if (os_strcmp(var, "domain_suffix_match") == 0)
3667                 return alloc_strdup(cred->domain_suffix_match);
3668
3669         if (os_strcmp(var, "domain") == 0) {
3670                 unsigned int i;
3671                 char *buf, *end, *pos;
3672                 int ret;
3673
3674                 if (!cred->num_domain)
3675                         return NULL;
3676
3677                 buf = os_malloc(4000);
3678                 if (buf == NULL)
3679                         return NULL;
3680                 pos = buf;
3681                 end = pos + 4000;
3682
3683                 for (i = 0; i < cred->num_domain; i++) {
3684                         ret = os_snprintf(pos, end - pos, "%s%s",
3685                                           i > 0 ? "\n" : "", cred->domain[i]);
3686                         if (os_snprintf_error(end - pos, ret))
3687                                 return buf;
3688                         pos += ret;
3689                 }
3690
3691                 return buf;
3692         }
3693
3694         if (os_strcmp(var, "phase1") == 0)
3695                 return alloc_strdup(cred->phase1);
3696
3697         if (os_strcmp(var, "phase2") == 0)
3698                 return alloc_strdup(cred->phase2);
3699
3700         if (os_strcmp(var, "roaming_consortium") == 0) {
3701                 size_t buflen;
3702                 char *buf;
3703
3704                 if (!cred->roaming_consortium_len)
3705                         return NULL;
3706                 buflen = cred->roaming_consortium_len * 2 + 1;
3707                 buf = os_malloc(buflen);
3708                 if (buf == NULL)
3709                         return NULL;
3710                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3711                                  cred->roaming_consortium_len);
3712                 return buf;
3713         }
3714
3715         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3716                 size_t buflen;
3717                 char *buf;
3718
3719                 if (!cred->required_roaming_consortium_len)
3720                         return NULL;
3721                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3722                 buf = os_malloc(buflen);
3723                 if (buf == NULL)
3724                         return NULL;
3725                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3726                                  cred->required_roaming_consortium_len);
3727                 return buf;
3728         }
3729
3730         if (os_strcmp(var, "roaming_consortiums") == 0) {
3731                 size_t buflen;
3732                 char *buf, *pos;
3733                 size_t i;
3734
3735                 if (!cred->num_roaming_consortiums)
3736                         return NULL;
3737                 buflen = cred->num_roaming_consortiums *
3738                         MAX_ROAMING_CONS_OI_LEN * 2 + 1;
3739                 buf = os_malloc(buflen);
3740                 if (!buf)
3741                         return NULL;
3742                 pos = buf;
3743                 for (i = 0; i < cred->num_roaming_consortiums; i++) {
3744                         if (i > 0)
3745                                 *pos++ = ',';
3746                         pos += wpa_snprintf_hex(
3747                                 pos, buf + buflen - pos,
3748                                 cred->roaming_consortiums[i],
3749                                 cred->roaming_consortiums_len[i]);
3750                 }
3751                 *pos = '\0';
3752                 return buf;
3753         }
3754
3755         if (os_strcmp(var, "excluded_ssid") == 0) {
3756                 unsigned int i;
3757                 char *buf, *end, *pos;
3758
3759                 if (!cred->num_excluded_ssid)
3760                         return NULL;
3761
3762                 buf = os_malloc(4000);
3763                 if (buf == NULL)
3764                         return NULL;
3765                 pos = buf;
3766                 end = pos + 4000;
3767
3768                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3769                         struct excluded_ssid *e;
3770                         int ret;
3771
3772                         e = &cred->excluded_ssid[i];
3773                         ret = os_snprintf(pos, end - pos, "%s%s",
3774                                           i > 0 ? "\n" : "",
3775                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3776                         if (os_snprintf_error(end - pos, ret))
3777                                 return buf;
3778                         pos += ret;
3779                 }
3780
3781                 return buf;
3782         }
3783
3784         if (os_strcmp(var, "roaming_partner") == 0) {
3785                 unsigned int i;
3786                 char *buf, *end, *pos;
3787
3788                 if (!cred->num_roaming_partner)
3789                         return NULL;
3790
3791                 buf = os_malloc(4000);
3792                 if (buf == NULL)
3793                         return NULL;
3794                 pos = buf;
3795                 end = pos + 4000;
3796
3797                 for (i = 0; i < cred->num_roaming_partner; i++) {
3798                         struct roaming_partner *p;
3799                         int ret;
3800
3801                         p = &cred->roaming_partner[i];
3802                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3803                                           i > 0 ? "\n" : "",
3804                                           p->fqdn, p->exact_match, p->priority,
3805                                           p->country);
3806                         if (os_snprintf_error(end - pos, ret))
3807                                 return buf;
3808                         pos += ret;
3809                 }
3810
3811                 return buf;
3812         }
3813
3814         if (os_strcmp(var, "provisioning_sp") == 0)
3815                 return alloc_strdup(cred->provisioning_sp);
3816
3817         return NULL;
3818 }
3819
3820
3821 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3822 {
3823         struct wpa_cred *cred;
3824
3825         cred = config->cred;
3826         while (cred) {
3827                 if (id == cred->id)
3828                         break;
3829                 cred = cred->next;
3830         }
3831
3832         return cred;
3833 }
3834
3835
3836 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3837 {
3838         int id;
3839         struct wpa_cred *cred, *last = NULL;
3840
3841         id = -1;
3842         cred = config->cred;
3843         while (cred) {
3844                 if (cred->id > id)
3845                         id = cred->id;
3846                 last = cred;
3847                 cred = cred->next;
3848         }
3849         id++;
3850
3851         cred = os_zalloc(sizeof(*cred));
3852         if (cred == NULL)
3853                 return NULL;
3854         cred->id = id;
3855         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3856         if (last)
3857                 last->next = cred;
3858         else
3859                 config->cred = cred;
3860
3861         return cred;
3862 }
3863
3864
3865 int wpa_config_remove_cred(struct wpa_config *config, int id)
3866 {
3867         struct wpa_cred *cred, *prev = NULL;
3868
3869         cred = config->cred;
3870         while (cred) {
3871                 if (id == cred->id)
3872                         break;
3873                 prev = cred;
3874                 cred = cred->next;
3875         }
3876
3877         if (cred == NULL)
3878                 return -1;
3879
3880         if (prev)
3881                 prev->next = cred->next;
3882         else
3883                 config->cred = cred->next;
3884
3885         wpa_config_free_cred(cred);
3886         return 0;
3887 }
3888
3889
3890 #ifndef CONFIG_NO_CONFIG_BLOBS
3891 /**
3892  * wpa_config_get_blob - Get a named configuration blob
3893  * @config: Configuration data from wpa_config_read()
3894  * @name: Name of the blob
3895  * Returns: Pointer to blob data or %NULL if not found
3896  */
3897 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3898                                                    const char *name)
3899 {
3900         struct wpa_config_blob *blob = config->blobs;
3901
3902         while (blob) {
3903                 if (os_strcmp(blob->name, name) == 0)
3904                         return blob;
3905                 blob = blob->next;
3906         }
3907         return NULL;
3908 }
3909
3910
3911 /**
3912  * wpa_config_set_blob - Set or add a named configuration blob
3913  * @config: Configuration data from wpa_config_read()
3914  * @blob: New value for the blob
3915  *
3916  * Adds a new configuration blob or replaces the current value of an existing
3917  * blob.
3918  */
3919 void wpa_config_set_blob(struct wpa_config *config,
3920                          struct wpa_config_blob *blob)
3921 {
3922         wpa_config_remove_blob(config, blob->name);
3923         blob->next = config->blobs;
3924         config->blobs = blob;
3925 }
3926
3927
3928 /**
3929  * wpa_config_free_blob - Free blob data
3930  * @blob: Pointer to blob to be freed
3931  */
3932 void wpa_config_free_blob(struct wpa_config_blob *blob)
3933 {
3934         if (blob) {
3935                 os_free(blob->name);
3936                 bin_clear_free(blob->data, blob->len);
3937                 os_free(blob);
3938         }
3939 }
3940
3941
3942 /**
3943  * wpa_config_remove_blob - Remove a named configuration blob
3944  * @config: Configuration data from wpa_config_read()
3945  * @name: Name of the blob to remove
3946  * Returns: 0 if blob was removed or -1 if blob was not found
3947  */
3948 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3949 {
3950         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3951
3952         while (pos) {
3953                 if (os_strcmp(pos->name, name) == 0) {
3954                         if (prev)
3955                                 prev->next = pos->next;
3956                         else
3957                                 config->blobs = pos->next;
3958                         wpa_config_free_blob(pos);
3959                         return 0;
3960                 }
3961                 prev = pos;
3962                 pos = pos->next;
3963         }
3964
3965         return -1;
3966 }
3967 #endif /* CONFIG_NO_CONFIG_BLOBS */
3968
3969
3970 /**
3971  * wpa_config_alloc_empty - Allocate an empty configuration
3972  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3973  * socket
3974  * @driver_param: Driver parameters
3975  * Returns: Pointer to allocated configuration data or %NULL on failure
3976  */
3977 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3978                                            const char *driver_param)
3979 {
3980         struct wpa_config *config;
3981         const int aCWmin = 4, aCWmax = 10;
3982         const struct hostapd_wmm_ac_params ac_bk =
3983                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3984         const struct hostapd_wmm_ac_params ac_be =
3985                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3986         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3987                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3988         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3989                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3990
3991         config = os_zalloc(sizeof(*config));
3992         if (config == NULL)
3993                 return NULL;
3994         config->eapol_version = DEFAULT_EAPOL_VERSION;
3995         config->ap_scan = DEFAULT_AP_SCAN;
3996         config->user_mpm = DEFAULT_USER_MPM;
3997         config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
3998         config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
3999         config->dot11RSNASAERetransPeriod =
4000                 DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD;
4001         config->fast_reauth = DEFAULT_FAST_REAUTH;
4002         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
4003         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
4004         config->p2p_go_freq_change_policy = DEFAULT_P2P_GO_FREQ_MOVE;
4005         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
4006         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
4007         config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
4008         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
4009         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
4010         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
4011         config->max_num_sta = DEFAULT_MAX_NUM_STA;
4012         config->ap_isolate = DEFAULT_AP_ISOLATE;
4013         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
4014         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
4015         config->wmm_ac_params[0] = ac_be;
4016         config->wmm_ac_params[1] = ac_bk;
4017         config->wmm_ac_params[2] = ac_vi;
4018         config->wmm_ac_params[3] = ac_vo;
4019         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
4020         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4021         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
4022         config->cert_in_cb = DEFAULT_CERT_IN_CB;
4023         config->wpa_rsc_relaxation = DEFAULT_WPA_RSC_RELAXATION;
4024
4025 #ifdef CONFIG_MBO
4026         config->mbo_cell_capa = DEFAULT_MBO_CELL_CAPA;
4027         config->disassoc_imminent_rssi_threshold =
4028                 DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD;
4029         config->oce = DEFAULT_OCE_SUPPORT;
4030 #endif /* CONFIG_MBO */
4031
4032         if (ctrl_interface)
4033                 config->ctrl_interface = os_strdup(ctrl_interface);
4034         if (driver_param)
4035                 config->driver_param = os_strdup(driver_param);
4036         config->gas_rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4037
4038         return config;
4039 }
4040
4041
4042 #ifndef CONFIG_NO_STDOUT_DEBUG
4043 /**
4044  * wpa_config_debug_dump_networks - Debug dump of configured networks
4045  * @config: Configuration data from wpa_config_read()
4046  */
4047 void wpa_config_debug_dump_networks(struct wpa_config *config)
4048 {
4049         int prio;
4050         struct wpa_ssid *ssid;
4051
4052         for (prio = 0; prio < config->num_prio; prio++) {
4053                 ssid = config->pssid[prio];
4054                 wpa_printf(MSG_DEBUG, "Priority group %d",
4055                            ssid->priority);
4056                 while (ssid) {
4057                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
4058                                    ssid->id,
4059                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
4060                         ssid = ssid->pnext;
4061                 }
4062         }
4063 }
4064 #endif /* CONFIG_NO_STDOUT_DEBUG */
4065
4066
4067 struct global_parse_data {
4068         char *name;
4069         int (*parser)(const struct global_parse_data *data,
4070                       struct wpa_config *config, int line, const char *value);
4071         int (*get)(const char *name, struct wpa_config *config, long offset,
4072                    char *buf, size_t buflen, int pretty_print);
4073         void *param1, *param2, *param3;
4074         unsigned int changed_flag;
4075 };
4076
4077
4078 static int wpa_global_config_parse_int(const struct global_parse_data *data,
4079                                        struct wpa_config *config, int line,
4080                                        const char *pos)
4081 {
4082         int val, *dst;
4083         char *end;
4084
4085         dst = (int *) (((u8 *) config) + (long) data->param1);
4086         val = strtol(pos, &end, 0);
4087         if (*end) {
4088                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
4089                            line, pos);
4090                 return -1;
4091         }
4092         *dst = val;
4093
4094         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
4095
4096         if (data->param2 && *dst < (long) data->param2) {
4097                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
4098                            "min_value=%ld)", line, data->name, *dst,
4099                            (long) data->param2);
4100                 *dst = (long) data->param2;
4101                 return -1;
4102         }
4103
4104         if (data->param3 && *dst > (long) data->param3) {
4105                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
4106                            "max_value=%ld)", line, data->name, *dst,
4107                            (long) data->param3);
4108                 *dst = (long) data->param3;
4109                 return -1;
4110         }
4111
4112         return 0;
4113 }
4114
4115
4116 static int wpa_global_config_parse_str(const struct global_parse_data *data,
4117                                        struct wpa_config *config, int line,
4118                                        const char *pos)
4119 {
4120         size_t len;
4121         char **dst, *tmp;
4122
4123         len = os_strlen(pos);
4124         if (data->param2 && len < (size_t) data->param2) {
4125                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
4126                            "min_len=%ld)", line, data->name,
4127                            (unsigned long) len, (long) data->param2);
4128                 return -1;
4129         }
4130
4131         if (data->param3 && len > (size_t) data->param3) {
4132                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
4133                            "max_len=%ld)", line, data->name,
4134                            (unsigned long) len, (long) data->param3);
4135                 return -1;
4136         }
4137
4138         if (has_newline(pos)) {
4139                 wpa_printf(MSG_ERROR, "Line %d: invalid %s value with newline",
4140                            line, data->name);
4141                 return -1;
4142         }
4143
4144         tmp = os_strdup(pos);
4145         if (tmp == NULL)
4146                 return -1;
4147
4148         dst = (char **) (((u8 *) config) + (long) data->param1);
4149         os_free(*dst);
4150         *dst = tmp;
4151         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
4152
4153         return 0;
4154 }
4155
4156
4157 static int wpa_config_process_bgscan(const struct global_parse_data *data,
4158                                      struct wpa_config *config, int line,
4159                                      const char *pos)
4160 {
4161         size_t len;
4162         char *tmp;
4163         int res;
4164
4165         tmp = wpa_config_parse_string(pos, &len);
4166         if (tmp == NULL) {
4167                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
4168                            line, data->name);
4169                 return -1;
4170         }
4171
4172         res = wpa_global_config_parse_str(data, config, line, tmp);
4173         os_free(tmp);
4174         return res;
4175 }
4176
4177
4178 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
4179                                        struct wpa_config *config, int line,
4180                                        const char *pos)
4181 {
4182         struct wpabuf **dst, *tmp;
4183
4184         tmp = wpabuf_parse_bin(pos);
4185         if (!tmp)
4186                 return -1;
4187
4188         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
4189         wpabuf_free(*dst);
4190         *dst = tmp;
4191         wpa_printf(MSG_DEBUG, "%s", data->name);
4192
4193         return 0;
4194 }
4195
4196
4197 static int wpa_config_process_freq_list(const struct global_parse_data *data,
4198                                         struct wpa_config *config, int line,
4199                                         const char *value)
4200 {
4201         int *freqs;
4202
4203         freqs = wpa_config_parse_int_array(value);
4204         if (freqs == NULL)
4205                 return -1;
4206         if (freqs[0] == 0) {
4207                 os_free(freqs);
4208                 freqs = NULL;
4209         }
4210         os_free(config->freq_list);
4211         config->freq_list = freqs;
4212         return 0;
4213 }
4214
4215
4216 #ifdef CONFIG_P2P
4217 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
4218                                         struct wpa_config *config, int line,
4219                                         const char *pos)
4220 {
4221         u32 *dst;
4222         struct hostapd_ip_addr addr;
4223
4224         if (hostapd_parse_ip_addr(pos, &addr) < 0)
4225                 return -1;
4226         if (addr.af != AF_INET)
4227                 return -1;
4228
4229         dst = (u32 *) (((u8 *) config) + (long) data->param1);
4230         os_memcpy(dst, &addr.u.v4.s_addr, 4);
4231         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
4232                    WPA_GET_BE32((u8 *) dst));
4233
4234         return 0;
4235 }
4236 #endif /* CONFIG_P2P */
4237
4238
4239 static int wpa_config_process_country(const struct global_parse_data *data,
4240                                       struct wpa_config *config, int line,
4241                                       const char *pos)
4242 {
4243         if (!pos[0] || !pos[1]) {
4244                 wpa_printf(MSG_DEBUG, "Invalid country set");
4245                 return -1;
4246         }
4247         config->country[0] = pos[0];
4248         config->country[1] = pos[1];
4249         wpa_printf(MSG_DEBUG, "country='%c%c'",
4250                    config->country[0], config->country[1]);
4251         return 0;
4252 }
4253
4254
4255 static int wpa_config_process_load_dynamic_eap(
4256         const struct global_parse_data *data, struct wpa_config *config,
4257         int line, const char *so)
4258 {
4259         int ret;
4260         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
4261         ret = eap_peer_method_load(so);
4262         if (ret == -2) {
4263                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
4264                            "reloading.");
4265         } else if (ret) {
4266                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
4267                            "method '%s'.", line, so);
4268                 return -1;
4269         }
4270
4271         return 0;
4272 }
4273
4274
4275 #ifdef CONFIG_WPS
4276
4277 static int wpa_config_process_uuid(const struct global_parse_data *data,
4278                                    struct wpa_config *config, int line,
4279                                    const char *pos)
4280 {
4281         char buf[40];
4282         if (uuid_str2bin(pos, config->uuid)) {
4283                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
4284                 return -1;
4285         }
4286         uuid_bin2str(config->uuid, buf, sizeof(buf));
4287         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
4288         return 0;
4289 }
4290
4291
4292 static int wpa_config_process_device_type(
4293         const struct global_parse_data *data,
4294         struct wpa_config *config, int line, const char *pos)
4295 {
4296         return wps_dev_type_str2bin(pos, config->device_type);
4297 }
4298
4299
4300 static int wpa_config_process_os_version(const struct global_parse_data *data,
4301                                          struct wpa_config *config, int line,
4302                                          const char *pos)
4303 {
4304         if (hexstr2bin(pos, config->os_version, 4)) {
4305                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
4306                 return -1;
4307         }
4308         wpa_printf(MSG_DEBUG, "os_version=%08x",
4309                    WPA_GET_BE32(config->os_version));
4310         return 0;
4311 }
4312
4313
4314 static int wpa_config_process_wps_vendor_ext_m1(
4315         const struct global_parse_data *data,
4316         struct wpa_config *config, int line, const char *pos)
4317 {
4318         struct wpabuf *tmp;
4319         int len = os_strlen(pos) / 2;
4320         u8 *p;
4321
4322         if (!len) {
4323                 wpa_printf(MSG_ERROR, "Line %d: "
4324                            "invalid wps_vendor_ext_m1", line);
4325                 return -1;
4326         }
4327
4328         tmp = wpabuf_alloc(len);
4329         if (tmp) {
4330                 p = wpabuf_put(tmp, len);
4331
4332                 if (hexstr2bin(pos, p, len)) {
4333                         wpa_printf(MSG_ERROR, "Line %d: "
4334                                    "invalid wps_vendor_ext_m1", line);
4335                         wpabuf_free(tmp);
4336                         return -1;
4337                 }
4338
4339                 wpabuf_free(config->wps_vendor_ext_m1);
4340                 config->wps_vendor_ext_m1 = tmp;
4341         } else {
4342                 wpa_printf(MSG_ERROR, "Can not allocate "
4343                            "memory for wps_vendor_ext_m1");
4344                 return -1;
4345         }
4346
4347         return 0;
4348 }
4349
4350 #endif /* CONFIG_WPS */
4351
4352 #ifdef CONFIG_P2P
4353 static int wpa_config_process_sec_device_type(
4354         const struct global_parse_data *data,
4355         struct wpa_config *config, int line, const char *pos)
4356 {
4357         int idx;
4358
4359         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
4360                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
4361                            "items", line);
4362                 return -1;
4363         }
4364
4365         idx = config->num_sec_device_types;
4366
4367         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
4368                 return -1;
4369
4370         config->num_sec_device_types++;
4371         return 0;
4372 }
4373
4374
4375 static int wpa_config_process_p2p_pref_chan(
4376         const struct global_parse_data *data,
4377         struct wpa_config *config, int line, const char *pos)
4378 {
4379         struct p2p_channel *pref = NULL, *n;
4380         unsigned int num = 0;
4381         const char *pos2;
4382         u8 op_class, chan;
4383
4384         /* format: class:chan,class:chan,... */
4385
4386         while (*pos) {
4387                 op_class = atoi(pos);
4388                 pos2 = os_strchr(pos, ':');
4389                 if (pos2 == NULL)
4390                         goto fail;
4391                 pos2++;
4392                 chan = atoi(pos2);
4393
4394                 n = os_realloc_array(pref, num + 1,
4395                                      sizeof(struct p2p_channel));
4396                 if (n == NULL)
4397                         goto fail;
4398                 pref = n;
4399                 pref[num].op_class = op_class;
4400                 pref[num].chan = chan;
4401                 num++;
4402
4403                 pos = os_strchr(pos2, ',');
4404                 if (pos == NULL)
4405                         break;
4406                 pos++;
4407         }
4408
4409         os_free(config->p2p_pref_chan);
4410         config->p2p_pref_chan = pref;
4411         config->num_p2p_pref_chan = num;
4412         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
4413                     (u8 *) config->p2p_pref_chan,
4414                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
4415
4416         return 0;
4417
4418 fail:
4419         os_free(pref);
4420         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
4421         return -1;
4422 }
4423
4424
4425 static int wpa_config_process_p2p_no_go_freq(
4426         const struct global_parse_data *data,
4427         struct wpa_config *config, int line, const char *pos)
4428 {
4429         int ret;
4430
4431         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
4432         if (ret < 0) {
4433                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
4434                 return -1;
4435         }
4436
4437         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
4438                    config->p2p_no_go_freq.num);
4439
4440         return 0;
4441 }
4442
4443 #endif /* CONFIG_P2P */
4444
4445
4446 static int wpa_config_process_hessid(
4447         const struct global_parse_data *data,
4448         struct wpa_config *config, int line, const char *pos)
4449 {
4450         if (hwaddr_aton2(pos, config->hessid) < 0) {
4451                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
4452                            line, pos);
4453                 return -1;
4454         }
4455
4456         return 0;
4457 }
4458
4459
4460 static int wpa_config_process_sae_groups(
4461         const struct global_parse_data *data,
4462         struct wpa_config *config, int line, const char *pos)
4463 {
4464         int *groups = wpa_config_parse_int_array(pos);
4465         if (groups == NULL) {
4466                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
4467                            line, pos);
4468                 return -1;
4469         }
4470
4471         os_free(config->sae_groups);
4472         config->sae_groups = groups;
4473
4474         return 0;
4475 }
4476
4477
4478 static int wpa_config_process_ap_vendor_elements(
4479         const struct global_parse_data *data,
4480         struct wpa_config *config, int line, const char *pos)
4481 {
4482         struct wpabuf *tmp;
4483         int len = os_strlen(pos) / 2;
4484         u8 *p;
4485
4486         if (!len) {
4487                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
4488                            line);
4489                 return -1;
4490         }
4491
4492         tmp = wpabuf_alloc(len);
4493         if (tmp) {
4494                 p = wpabuf_put(tmp, len);
4495
4496                 if (hexstr2bin(pos, p, len)) {
4497                         wpa_printf(MSG_ERROR, "Line %d: invalid "
4498                                    "ap_vendor_elements", line);
4499                         wpabuf_free(tmp);
4500                         return -1;
4501                 }
4502
4503                 wpabuf_free(config->ap_vendor_elements);
4504                 config->ap_vendor_elements = tmp;
4505         } else {
4506                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4507                            "ap_vendor_elements");
4508                 return -1;
4509         }
4510
4511         return 0;
4512 }
4513
4514
4515 #ifdef CONFIG_CTRL_IFACE
4516 static int wpa_config_process_no_ctrl_interface(
4517         const struct global_parse_data *data,
4518         struct wpa_config *config, int line, const char *pos)
4519 {
4520         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4521         os_free(config->ctrl_interface);
4522         config->ctrl_interface = NULL;
4523         return 0;
4524 }
4525 #endif /* CONFIG_CTRL_IFACE */
4526
4527
4528 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4529                               long offset, char *buf, size_t buflen,
4530                               int pretty_print)
4531 {
4532         int *val = (int *) (((u8 *) config) + (long) offset);
4533
4534         if (pretty_print)
4535                 return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4536         return os_snprintf(buf, buflen, "%d", *val);
4537 }
4538
4539
4540 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4541                               long offset, char *buf, size_t buflen,
4542                               int pretty_print)
4543 {
4544         char **val = (char **) (((u8 *) config) + (long) offset);
4545         int res;
4546
4547         if (pretty_print)
4548                 res = os_snprintf(buf, buflen, "%s=%s\n", name,
4549                                   *val ? *val : "null");
4550         else if (!*val)
4551                 return -1;
4552         else
4553                 res = os_snprintf(buf, buflen, "%s", *val);
4554         if (os_snprintf_error(buflen, res))
4555                 res = -1;
4556
4557         return res;
4558 }
4559
4560
4561 #ifdef CONFIG_P2P
4562 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4563                                long offset, char *buf, size_t buflen,
4564                                int pretty_print)
4565 {
4566         void *val = ((u8 *) config) + (long) offset;
4567         int res;
4568         char addr[INET_ADDRSTRLEN];
4569
4570         if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4571                 return -1;
4572
4573         if (pretty_print)
4574                 res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4575         else
4576                 res = os_snprintf(buf, buflen, "%s", addr);
4577
4578         if (os_snprintf_error(buflen, res))
4579                 res = -1;
4580
4581         return res;
4582 }
4583 #endif /* CONFIG_P2P */
4584
4585
4586 #ifdef OFFSET
4587 #undef OFFSET
4588 #endif /* OFFSET */
4589 /* OFFSET: Get offset of a variable within the wpa_config structure */
4590 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4591
4592 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4593 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4594 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4595 #define INT(f) _INT(f), NULL, NULL
4596 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4597 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4598 #define STR(f) _STR(f), NULL, NULL
4599 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4600 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4601 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4,  \
4602         OFFSET(f), NULL, NULL
4603
4604 static const struct global_parse_data global_fields[] = {
4605 #ifdef CONFIG_CTRL_IFACE
4606         { STR(ctrl_interface), 0 },
4607         { FUNC_NO_VAR(no_ctrl_interface), 0 },
4608         { STR(ctrl_interface_group), 0 } /* deprecated */,
4609 #endif /* CONFIG_CTRL_IFACE */
4610 #ifdef CONFIG_MACSEC
4611         { INT_RANGE(eapol_version, 1, 3), 0 },
4612 #else /* CONFIG_MACSEC */
4613         { INT_RANGE(eapol_version, 1, 2), 0 },
4614 #endif /* CONFIG_MACSEC */
4615         { INT(ap_scan), 0 },
4616         { FUNC(bgscan), 0 },
4617 #ifdef CONFIG_MESH
4618         { INT(user_mpm), 0 },
4619         { INT_RANGE(max_peer_links, 0, 255), 0 },
4620         { INT(mesh_max_inactivity), 0 },
4621         { INT(dot11RSNASAERetransPeriod), 0 },
4622 #endif /* CONFIG_MESH */
4623         { INT(disable_scan_offload), 0 },
4624         { INT(fast_reauth), 0 },
4625         { STR(opensc_engine_path), 0 },
4626         { STR(pkcs11_engine_path), 0 },
4627         { STR(pkcs11_module_path), 0 },
4628         { STR(openssl_ciphers), 0 },
4629         { STR(pcsc_reader), 0 },
4630         { STR(pcsc_pin), 0 },
4631         { INT(external_sim), 0 },
4632         { STR(driver_param), 0 },
4633         { INT(dot11RSNAConfigPMKLifetime), 0 },
4634         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4635         { INT(dot11RSNAConfigSATimeout), 0 },
4636 #ifndef CONFIG_NO_CONFIG_WRITE
4637         { INT(update_config), 0 },
4638 #endif /* CONFIG_NO_CONFIG_WRITE */
4639         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4640 #ifdef CONFIG_WPS
4641         { FUNC(uuid), CFG_CHANGED_UUID },
4642         { INT_RANGE(auto_uuid, 0, 1), 0 },
4643         { STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4644           CFG_CHANGED_DEVICE_NAME },
4645         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4646         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4647         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4648         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4649         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4650         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4651         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4652         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4653         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4654 #endif /* CONFIG_WPS */
4655 #ifdef CONFIG_P2P
4656         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4657         { INT(p2p_listen_reg_class), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4658         { INT(p2p_listen_channel), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4659         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4660         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4661         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4662         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4663         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4664         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4665         { INT(p2p_group_idle), 0 },
4666         { INT_RANGE(p2p_go_freq_change_policy, 0, P2P_GO_FREQ_MOVE_MAX), 0 },
4667         { INT_RANGE(p2p_passphrase_len, 8, 63),
4668           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4669         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4670         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4671         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4672         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4673         { INT(p2p_go_ht40), 0 },
4674         { INT(p2p_go_vht), 0 },
4675         { INT(p2p_disabled), 0 },
4676         { INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4677         { INT(p2p_no_group_iface), 0 },
4678         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4679         { IPV4(ip_addr_go), 0 },
4680         { IPV4(ip_addr_mask), 0 },
4681         { IPV4(ip_addr_start), 0 },
4682         { IPV4(ip_addr_end), 0 },
4683         { INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4684 #endif /* CONFIG_P2P */
4685         { FUNC(country), CFG_CHANGED_COUNTRY },
4686         { INT(bss_max_count), 0 },
4687         { INT(bss_expiration_age), 0 },
4688         { INT(bss_expiration_scan_count), 0 },
4689         { INT_RANGE(filter_ssids, 0, 1), 0 },
4690         { INT_RANGE(filter_rssi, -100, 0), 0 },
4691         { INT(max_num_sta), 0 },
4692         { INT_RANGE(ap_isolate, 0, 1), 0 },
4693         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4694 #ifdef CONFIG_HS20
4695         { INT_RANGE(hs20, 0, 1), 0 },
4696 #endif /* CONFIG_HS20 */
4697         { INT_RANGE(interworking, 0, 1), 0 },
4698         { FUNC(hessid), 0 },
4699         { INT_RANGE(access_network_type, 0, 15), 0 },
4700         { INT_RANGE(go_interworking, 0, 1), 0 },
4701         { INT_RANGE(go_access_network_type, 0, 15), 0 },
4702         { INT_RANGE(go_internet, 0, 1), 0 },
4703         { INT_RANGE(go_venue_group, 0, 255), 0 },
4704         { INT_RANGE(go_venue_type, 0, 255), 0 },
4705         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4706         { STR(autoscan), 0 },
4707         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4708           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4709         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4710         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4711         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4712         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4713         { INT(p2p_go_max_inactivity), 0 },
4714         { INT_RANGE(auto_interworking, 0, 1), 0 },
4715         { INT(okc), 0 },
4716         { INT(pmf), 0 },
4717         { FUNC(sae_groups), 0 },
4718         { INT(dtim_period), 0 },
4719         { INT(beacon_int), 0 },
4720         { FUNC(ap_vendor_elements), 0 },
4721         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4722         { FUNC(freq_list), 0 },
4723         { INT(scan_cur_freq), 0 },
4724         { INT(sched_scan_interval), 0 },
4725         { INT(sched_scan_start_delay), 0 },
4726         { INT(tdls_external_control), 0},
4727         { STR(osu_dir), 0 },
4728         { STR(wowlan_triggers), CFG_CHANGED_WOWLAN_TRIGGERS },
4729         { INT(p2p_search_delay), 0},
4730         { INT(mac_addr), 0 },
4731         { INT(rand_addr_lifetime), 0 },
4732         { INT(preassoc_mac_addr), 0 },
4733         { INT(key_mgmt_offload), 0},
4734         { INT(passive_scan), 0 },
4735         { INT(reassoc_same_bss_optim), 0 },
4736         { INT(wps_priority), 0},
4737 #ifdef CONFIG_FST
4738         { STR_RANGE(fst_group_id, 1, FST_MAX_GROUP_ID_LEN), 0 },
4739         { INT_RANGE(fst_priority, 1, FST_MAX_PRIO_VALUE), 0 },
4740         { INT_RANGE(fst_llt, 1, FST_MAX_LLT_MS), 0 },
4741 #endif /* CONFIG_FST */
4742         { INT_RANGE(cert_in_cb, 0, 1), 0 },
4743         { INT_RANGE(wpa_rsc_relaxation, 0, 1), 0 },
4744         { STR(sched_scan_plans), CFG_CHANGED_SCHED_SCAN_PLANS },
4745 #ifdef CONFIG_MBO
4746         { STR(non_pref_chan), 0 },
4747         { INT_RANGE(mbo_cell_capa, MBO_CELL_CAPA_AVAILABLE,
4748                     MBO_CELL_CAPA_NOT_SUPPORTED), 0 },
4749         { INT_RANGE(disassoc_imminent_rssi_threshold, -120, 0), 0 },
4750         { INT_RANGE(oce, 0, 3), 0 },
4751 #endif /* CONFIG_MBO */
4752         { INT(gas_address3), 0 },
4753         { INT_RANGE(ftm_responder, 0, 1), 0 },
4754         { INT_RANGE(ftm_initiator, 0, 1), 0 },
4755         { INT(gas_rand_addr_lifetime), 0 },
4756         { INT_RANGE(gas_rand_mac_addr, 0, 2), 0 },
4757         { INT_RANGE(dpp_config_processing, 0, 2), 0 },
4758         { INT_RANGE(coloc_intf_reporting, 0, 1), 0 },
4759 };
4760
4761 #undef FUNC
4762 #undef _INT
4763 #undef INT
4764 #undef INT_RANGE
4765 #undef _STR
4766 #undef STR
4767 #undef STR_RANGE
4768 #undef BIN
4769 #undef IPV4
4770 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4771
4772
4773 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4774 {
4775         int result = 0;
4776         size_t i;
4777
4778         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4779                 const struct global_parse_data *field = &global_fields[i];
4780                 int tmp;
4781
4782                 if (!field->get)
4783                         continue;
4784
4785                 tmp = field->get(field->name, config, (long) field->param1,
4786                                  buf, buflen, 1);
4787                 if (tmp < 0)
4788                         return -1;
4789                 buf += tmp;
4790                 buflen -= tmp;
4791                 result += tmp;
4792         }
4793         return result;
4794 }
4795
4796
4797 int wpa_config_get_value(const char *name, struct wpa_config *config,
4798                          char *buf, size_t buflen)
4799 {
4800         size_t i;
4801
4802         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4803                 const struct global_parse_data *field = &global_fields[i];
4804
4805                 if (os_strcmp(name, field->name) != 0)
4806                         continue;
4807                 if (!field->get)
4808                         break;
4809                 return field->get(name, config, (long) field->param1,
4810                                   buf, buflen, 0);
4811         }
4812
4813         return -1;
4814 }
4815
4816
4817 int wpa_config_get_num_global_field_names(void)
4818 {
4819         return NUM_GLOBAL_FIELDS;
4820 }
4821
4822
4823 const char * wpa_config_get_global_field_name(unsigned int i, int *no_var)
4824 {
4825         if (i >= NUM_GLOBAL_FIELDS)
4826                 return NULL;
4827
4828         if (no_var)
4829                 *no_var = !global_fields[i].param1;
4830         return global_fields[i].name;
4831 }
4832
4833
4834 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4835 {
4836         size_t i;
4837         int ret = 0;
4838
4839         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4840                 const struct global_parse_data *field = &global_fields[i];
4841                 size_t flen = os_strlen(field->name);
4842                 if (os_strncmp(pos, field->name, flen) != 0 ||
4843                     pos[flen] != '=')
4844                         continue;
4845
4846                 if (field->parser(field, config, line, pos + flen + 1)) {
4847                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4848                                    "parse '%s'.", line, pos);
4849                         ret = -1;
4850                 }
4851                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4852                         config->wps_nfc_pw_from_config = 1;
4853                 config->changed_parameters |= field->changed_flag;
4854                 break;
4855         }
4856         if (i == NUM_GLOBAL_FIELDS) {
4857 #ifdef CONFIG_AP
4858                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4859                         char *tmp = os_strchr(pos, '=');
4860                         if (tmp == NULL) {
4861                                 if (line < 0)
4862                                         return -1;
4863                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4864                                            "'%s'", line, pos);
4865                                 return -1;
4866                         }
4867                         *tmp++ = '\0';
4868                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4869                                                   tmp)) {
4870                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4871                                            "AC item", line);
4872                                 return -1;
4873                         }
4874                 }
4875 #endif /* CONFIG_AP */
4876                 if (line < 0)
4877                         return -1;
4878                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4879                            line, pos);
4880                 ret = -1;
4881         }
4882
4883         return ret;
4884 }