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 #ifdef CONFIG_DPP
1047         if (ssid->key_mgmt & WPA_KEY_MGMT_DPP) {
1048                 ret = os_snprintf(pos, end - pos, "%sDPP",
1049                                   pos == buf ? "" : " ");
1050                 if (os_snprintf_error(end - pos, ret)) {
1051                         end[-1] = '\0';
1052                         return buf;
1053                 }
1054                 pos += ret;
1055         }
1056 #endif /* CONFIG_DPP */
1057
1058 #ifdef CONFIG_OWE
1059         if (ssid->key_mgmt & WPA_KEY_MGMT_OWE) {
1060                 ret = os_snprintf(pos, end - pos, "%sOWE",
1061                                   pos == buf ? "" : " ");
1062                 if (os_snprintf_error(end - pos, ret)) {
1063                         end[-1] = '\0';
1064                         return buf;
1065                 }
1066                 pos += ret;
1067         }
1068 #endif /* CONFIG_OWE */
1069
1070         if (pos == buf) {
1071                 os_free(buf);
1072                 buf = NULL;
1073         }
1074
1075         return buf;
1076 }
1077 #endif /* NO_CONFIG_WRITE */
1078
1079
1080 static int wpa_config_parse_cipher(int line, const char *value)
1081 {
1082 #ifdef CONFIG_NO_WPA
1083         return -1;
1084 #else /* CONFIG_NO_WPA */
1085         int val = wpa_parse_cipher(value);
1086         if (val < 0) {
1087                 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
1088                            line, value);
1089                 return -1;
1090         }
1091         if (val == 0) {
1092                 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
1093                            line);
1094                 return -1;
1095         }
1096         return val;
1097 #endif /* CONFIG_NO_WPA */
1098 }
1099
1100
1101 #ifndef NO_CONFIG_WRITE
1102 static char * wpa_config_write_cipher(int cipher)
1103 {
1104 #ifdef CONFIG_NO_WPA
1105         return NULL;
1106 #else /* CONFIG_NO_WPA */
1107         char *buf = os_zalloc(50);
1108         if (buf == NULL)
1109                 return NULL;
1110
1111         if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
1112                 os_free(buf);
1113                 return NULL;
1114         }
1115
1116         return buf;
1117 #endif /* CONFIG_NO_WPA */
1118 }
1119 #endif /* NO_CONFIG_WRITE */
1120
1121
1122 static int wpa_config_parse_pairwise(const struct parse_data *data,
1123                                      struct wpa_ssid *ssid, int line,
1124                                      const char *value)
1125 {
1126         int val;
1127         val = wpa_config_parse_cipher(line, value);
1128         if (val == -1)
1129                 return -1;
1130         if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
1131                 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
1132                            "(0x%x).", line, val);
1133                 return -1;
1134         }
1135
1136         if (ssid->pairwise_cipher == val)
1137                 return 1;
1138         wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
1139         ssid->pairwise_cipher = val;
1140         return 0;
1141 }
1142
1143
1144 #ifndef NO_CONFIG_WRITE
1145 static char * wpa_config_write_pairwise(const struct parse_data *data,
1146                                         struct wpa_ssid *ssid)
1147 {
1148         return wpa_config_write_cipher(ssid->pairwise_cipher);
1149 }
1150 #endif /* NO_CONFIG_WRITE */
1151
1152
1153 static int wpa_config_parse_group(const struct parse_data *data,
1154                                   struct wpa_ssid *ssid, int line,
1155                                   const char *value)
1156 {
1157         int val;
1158         val = wpa_config_parse_cipher(line, value);
1159         if (val == -1)
1160                 return -1;
1161
1162         /*
1163          * Backwards compatibility - filter out WEP ciphers that were previously
1164          * allowed.
1165          */
1166         val &= ~(WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40);
1167
1168         if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
1169                 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
1170                            "(0x%x).", line, val);
1171                 return -1;
1172         }
1173
1174         if (ssid->group_cipher == val)
1175                 return 1;
1176         wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
1177         ssid->group_cipher = val;
1178         return 0;
1179 }
1180
1181
1182 #ifndef NO_CONFIG_WRITE
1183 static char * wpa_config_write_group(const struct parse_data *data,
1184                                      struct wpa_ssid *ssid)
1185 {
1186         return wpa_config_write_cipher(ssid->group_cipher);
1187 }
1188 #endif /* NO_CONFIG_WRITE */
1189
1190
1191 static int wpa_config_parse_group_mgmt(const struct parse_data *data,
1192                                        struct wpa_ssid *ssid, int line,
1193                                        const char *value)
1194 {
1195         int val;
1196
1197         val = wpa_config_parse_cipher(line, value);
1198         if (val == -1)
1199                 return -1;
1200
1201         if (val & ~WPA_ALLOWED_GROUP_MGMT_CIPHERS) {
1202                 wpa_printf(MSG_ERROR,
1203                            "Line %d: not allowed group management cipher (0x%x).",
1204                            line, val);
1205                 return -1;
1206         }
1207
1208         if (ssid->group_mgmt_cipher == val)
1209                 return 1;
1210         wpa_printf(MSG_MSGDUMP, "group_mgmt: 0x%x", val);
1211         ssid->group_mgmt_cipher = val;
1212         return 0;
1213 }
1214
1215
1216 #ifndef NO_CONFIG_WRITE
1217 static char * wpa_config_write_group_mgmt(const struct parse_data *data,
1218                                           struct wpa_ssid *ssid)
1219 {
1220         return wpa_config_write_cipher(ssid->group_mgmt_cipher);
1221 }
1222 #endif /* NO_CONFIG_WRITE */
1223
1224
1225 static int wpa_config_parse_auth_alg(const struct parse_data *data,
1226                                      struct wpa_ssid *ssid, int line,
1227                                      const char *value)
1228 {
1229         int val = 0, last, errors = 0;
1230         char *start, *end, *buf;
1231
1232         buf = os_strdup(value);
1233         if (buf == NULL)
1234                 return -1;
1235         start = buf;
1236
1237         while (*start != '\0') {
1238                 while (*start == ' ' || *start == '\t')
1239                         start++;
1240                 if (*start == '\0')
1241                         break;
1242                 end = start;
1243                 while (*end != ' ' && *end != '\t' && *end != '\0')
1244                         end++;
1245                 last = *end == '\0';
1246                 *end = '\0';
1247                 if (os_strcmp(start, "OPEN") == 0)
1248                         val |= WPA_AUTH_ALG_OPEN;
1249                 else if (os_strcmp(start, "SHARED") == 0)
1250                         val |= WPA_AUTH_ALG_SHARED;
1251                 else if (os_strcmp(start, "LEAP") == 0)
1252                         val |= WPA_AUTH_ALG_LEAP;
1253                 else {
1254                         wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1255                                    line, start);
1256                         errors++;
1257                 }
1258
1259                 if (last)
1260                         break;
1261                 start = end + 1;
1262         }
1263         os_free(buf);
1264
1265         if (val == 0) {
1266                 wpa_printf(MSG_ERROR,
1267                            "Line %d: no auth_alg values configured.", line);
1268                 errors++;
1269         }
1270
1271         if (!errors && ssid->auth_alg == val)
1272                 return 1;
1273         wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1274         ssid->auth_alg = val;
1275         return errors ? -1 : 0;
1276 }
1277
1278
1279 #ifndef NO_CONFIG_WRITE
1280 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1281                                         struct wpa_ssid *ssid)
1282 {
1283         char *buf, *pos, *end;
1284         int ret;
1285
1286         pos = buf = os_zalloc(30);
1287         if (buf == NULL)
1288                 return NULL;
1289         end = buf + 30;
1290
1291         if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1292                 ret = os_snprintf(pos, end - pos, "%sOPEN",
1293                                   pos == buf ? "" : " ");
1294                 if (os_snprintf_error(end - pos, ret)) {
1295                         end[-1] = '\0';
1296                         return buf;
1297                 }
1298                 pos += ret;
1299         }
1300
1301         if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1302                 ret = os_snprintf(pos, end - pos, "%sSHARED",
1303                                   pos == buf ? "" : " ");
1304                 if (os_snprintf_error(end - pos, ret)) {
1305                         end[-1] = '\0';
1306                         return buf;
1307                 }
1308                 pos += ret;
1309         }
1310
1311         if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1312                 ret = os_snprintf(pos, end - pos, "%sLEAP",
1313                                   pos == buf ? "" : " ");
1314                 if (os_snprintf_error(end - pos, ret)) {
1315                         end[-1] = '\0';
1316                         return buf;
1317                 }
1318                 pos += ret;
1319         }
1320
1321         if (pos == buf) {
1322                 os_free(buf);
1323                 buf = NULL;
1324         }
1325
1326         return buf;
1327 }
1328 #endif /* NO_CONFIG_WRITE */
1329
1330
1331 static int * wpa_config_parse_int_array(const char *value)
1332 {
1333         int *freqs;
1334         size_t used, len;
1335         const char *pos;
1336
1337         used = 0;
1338         len = 10;
1339         freqs = os_calloc(len + 1, sizeof(int));
1340         if (freqs == NULL)
1341                 return NULL;
1342
1343         pos = value;
1344         while (pos) {
1345                 while (*pos == ' ')
1346                         pos++;
1347                 if (used == len) {
1348                         int *n;
1349                         size_t i;
1350                         n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1351                         if (n == NULL) {
1352                                 os_free(freqs);
1353                                 return NULL;
1354                         }
1355                         for (i = len; i <= len * 2; i++)
1356                                 n[i] = 0;
1357                         freqs = n;
1358                         len *= 2;
1359                 }
1360
1361                 freqs[used] = atoi(pos);
1362                 if (freqs[used] == 0)
1363                         break;
1364                 used++;
1365                 pos = os_strchr(pos + 1, ' ');
1366         }
1367
1368         return freqs;
1369 }
1370
1371
1372 static int wpa_config_parse_scan_freq(const struct parse_data *data,
1373                                       struct wpa_ssid *ssid, int line,
1374                                       const char *value)
1375 {
1376         int *freqs;
1377
1378         freqs = wpa_config_parse_int_array(value);
1379         if (freqs == NULL)
1380                 return -1;
1381         if (freqs[0] == 0) {
1382                 os_free(freqs);
1383                 freqs = NULL;
1384         }
1385         os_free(ssid->scan_freq);
1386         ssid->scan_freq = freqs;
1387
1388         return 0;
1389 }
1390
1391
1392 static int wpa_config_parse_freq_list(const struct parse_data *data,
1393                                       struct wpa_ssid *ssid, int line,
1394                                       const char *value)
1395 {
1396         int *freqs;
1397
1398         freqs = wpa_config_parse_int_array(value);
1399         if (freqs == NULL)
1400                 return -1;
1401         if (freqs[0] == 0) {
1402                 os_free(freqs);
1403                 freqs = NULL;
1404         }
1405         os_free(ssid->freq_list);
1406         ssid->freq_list = freqs;
1407
1408         return 0;
1409 }
1410
1411
1412 #ifndef NO_CONFIG_WRITE
1413 static char * wpa_config_write_freqs(const struct parse_data *data,
1414                                      const int *freqs)
1415 {
1416         char *buf, *pos, *end;
1417         int i, ret;
1418         size_t count;
1419
1420         if (freqs == NULL)
1421                 return NULL;
1422
1423         count = 0;
1424         for (i = 0; freqs[i]; i++)
1425                 count++;
1426
1427         pos = buf = os_zalloc(10 * count + 1);
1428         if (buf == NULL)
1429                 return NULL;
1430         end = buf + 10 * count + 1;
1431
1432         for (i = 0; freqs[i]; i++) {
1433                 ret = os_snprintf(pos, end - pos, "%s%u",
1434                                   i == 0 ? "" : " ", freqs[i]);
1435                 if (os_snprintf_error(end - pos, ret)) {
1436                         end[-1] = '\0';
1437                         return buf;
1438                 }
1439                 pos += ret;
1440         }
1441
1442         return buf;
1443 }
1444
1445
1446 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1447                                          struct wpa_ssid *ssid)
1448 {
1449         return wpa_config_write_freqs(data, ssid->scan_freq);
1450 }
1451
1452
1453 static char * wpa_config_write_freq_list(const struct parse_data *data,
1454                                          struct wpa_ssid *ssid)
1455 {
1456         return wpa_config_write_freqs(data, ssid->freq_list);
1457 }
1458 #endif /* NO_CONFIG_WRITE */
1459
1460
1461 #ifdef IEEE8021X_EAPOL
1462 static int wpa_config_parse_eap(const struct parse_data *data,
1463                                 struct wpa_ssid *ssid, int line,
1464                                 const char *value)
1465 {
1466         int last, errors = 0;
1467         char *start, *end, *buf;
1468         struct eap_method_type *methods = NULL, *tmp;
1469         size_t num_methods = 0;
1470
1471         buf = os_strdup(value);
1472         if (buf == NULL)
1473                 return -1;
1474         start = buf;
1475
1476         while (*start != '\0') {
1477                 while (*start == ' ' || *start == '\t')
1478                         start++;
1479                 if (*start == '\0')
1480                         break;
1481                 end = start;
1482                 while (*end != ' ' && *end != '\t' && *end != '\0')
1483                         end++;
1484                 last = *end == '\0';
1485                 *end = '\0';
1486                 tmp = methods;
1487                 methods = os_realloc_array(methods, num_methods + 1,
1488                                            sizeof(*methods));
1489                 if (methods == NULL) {
1490                         os_free(tmp);
1491                         os_free(buf);
1492                         return -1;
1493                 }
1494                 methods[num_methods].method = eap_peer_get_type(
1495                         start, &methods[num_methods].vendor);
1496                 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1497                     methods[num_methods].method == EAP_TYPE_NONE) {
1498                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1499                                    "'%s'", line, start);
1500                         wpa_printf(MSG_ERROR, "You may need to add support for"
1501                                    " this EAP method during wpa_supplicant\n"
1502                                    "build time configuration.\n"
1503                                    "See README for more information.");
1504                         errors++;
1505                 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1506                            methods[num_methods].method == EAP_TYPE_LEAP)
1507                         ssid->leap++;
1508                 else
1509                         ssid->non_leap++;
1510                 num_methods++;
1511                 if (last)
1512                         break;
1513                 start = end + 1;
1514         }
1515         os_free(buf);
1516
1517         tmp = methods;
1518         methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1519         if (methods == NULL) {
1520                 os_free(tmp);
1521                 return -1;
1522         }
1523         methods[num_methods].vendor = EAP_VENDOR_IETF;
1524         methods[num_methods].method = EAP_TYPE_NONE;
1525         num_methods++;
1526
1527         if (!errors && ssid->eap.eap_methods) {
1528                 struct eap_method_type *prev_m;
1529                 size_t i, j, prev_methods, match = 0;
1530
1531                 prev_m = ssid->eap.eap_methods;
1532                 for (i = 0; prev_m[i].vendor != EAP_VENDOR_IETF ||
1533                              prev_m[i].method != EAP_TYPE_NONE; i++) {
1534                         /* Count the methods */
1535                 }
1536                 prev_methods = i + 1;
1537
1538                 for (i = 0; prev_methods == num_methods && i < prev_methods;
1539                      i++) {
1540                         for (j = 0; j < num_methods; j++) {
1541                                 if (prev_m[i].vendor == methods[j].vendor &&
1542                                     prev_m[i].method == methods[j].method) {
1543                                         match++;
1544                                         break;
1545                                 }
1546                         }
1547                 }
1548                 if (match == num_methods) {
1549                         os_free(methods);
1550                         return 1;
1551                 }
1552         }
1553         wpa_hexdump(MSG_MSGDUMP, "eap methods",
1554                     (u8 *) methods, num_methods * sizeof(*methods));
1555         os_free(ssid->eap.eap_methods);
1556         ssid->eap.eap_methods = methods;
1557         return errors ? -1 : 0;
1558 }
1559
1560
1561 #ifndef NO_CONFIG_WRITE
1562 static char * wpa_config_write_eap(const struct parse_data *data,
1563                                    struct wpa_ssid *ssid)
1564 {
1565         int i, ret;
1566         char *buf, *pos, *end;
1567         const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1568         const char *name;
1569
1570         if (eap_methods == NULL)
1571                 return NULL;
1572
1573         pos = buf = os_zalloc(100);
1574         if (buf == NULL)
1575                 return NULL;
1576         end = buf + 100;
1577
1578         for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1579                      eap_methods[i].method != EAP_TYPE_NONE; i++) {
1580                 name = eap_get_name(eap_methods[i].vendor,
1581                                     eap_methods[i].method);
1582                 if (name) {
1583                         ret = os_snprintf(pos, end - pos, "%s%s",
1584                                           pos == buf ? "" : " ", name);
1585                         if (os_snprintf_error(end - pos, ret))
1586                                 break;
1587                         pos += ret;
1588                 }
1589         }
1590
1591         end[-1] = '\0';
1592
1593         return buf;
1594 }
1595 #endif /* NO_CONFIG_WRITE */
1596
1597
1598 static int wpa_config_parse_password(const struct parse_data *data,
1599                                      struct wpa_ssid *ssid, int line,
1600                                      const char *value)
1601 {
1602         u8 *hash;
1603
1604         if (os_strcmp(value, "NULL") == 0) {
1605                 if (!ssid->eap.password)
1606                         return 1; /* Already unset */
1607                 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1608                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1609                 ssid->eap.password = NULL;
1610                 ssid->eap.password_len = 0;
1611                 return 0;
1612         }
1613
1614 #ifdef CONFIG_EXT_PASSWORD
1615         if (os_strncmp(value, "ext:", 4) == 0) {
1616                 char *name = os_strdup(value + 4);
1617                 if (name == NULL)
1618                         return -1;
1619                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1620                 ssid->eap.password = (u8 *) name;
1621                 ssid->eap.password_len = os_strlen(name);
1622                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1623                 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1624                 return 0;
1625         }
1626 #endif /* CONFIG_EXT_PASSWORD */
1627
1628         if (os_strncmp(value, "hash:", 5) != 0) {
1629                 char *tmp;
1630                 size_t res_len;
1631
1632                 tmp = wpa_config_parse_string(value, &res_len);
1633                 if (tmp == NULL) {
1634                         wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1635                                    "password.", line);
1636                         return -1;
1637                 }
1638                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1639                                       (u8 *) tmp, res_len);
1640
1641                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1642                 ssid->eap.password = (u8 *) tmp;
1643                 ssid->eap.password_len = res_len;
1644                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1645                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1646
1647                 return 0;
1648         }
1649
1650
1651         /* NtPasswordHash: hash:<32 hex digits> */
1652         if (os_strlen(value + 5) != 2 * 16) {
1653                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1654                            "(expected 32 hex digits)", line);
1655                 return -1;
1656         }
1657
1658         hash = os_malloc(16);
1659         if (hash == NULL)
1660                 return -1;
1661
1662         if (hexstr2bin(value + 5, hash, 16)) {
1663                 os_free(hash);
1664                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1665                 return -1;
1666         }
1667
1668         wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1669
1670         if (ssid->eap.password && ssid->eap.password_len == 16 &&
1671             os_memcmp(ssid->eap.password, hash, 16) == 0 &&
1672             (ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1673                 bin_clear_free(hash, 16);
1674                 return 1;
1675         }
1676         bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1677         ssid->eap.password = hash;
1678         ssid->eap.password_len = 16;
1679         ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1680         ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1681
1682         return 0;
1683 }
1684
1685
1686 #ifndef NO_CONFIG_WRITE
1687 static char * wpa_config_write_password(const struct parse_data *data,
1688                                         struct wpa_ssid *ssid)
1689 {
1690         char *buf;
1691
1692         if (ssid->eap.password == NULL)
1693                 return NULL;
1694
1695 #ifdef CONFIG_EXT_PASSWORD
1696         if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1697                 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1698                 if (buf == NULL)
1699                         return NULL;
1700                 os_memcpy(buf, "ext:", 4);
1701                 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1702                 return buf;
1703         }
1704 #endif /* CONFIG_EXT_PASSWORD */
1705
1706         if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1707                 return wpa_config_write_string(
1708                         ssid->eap.password, ssid->eap.password_len);
1709         }
1710
1711         buf = os_malloc(5 + 32 + 1);
1712         if (buf == NULL)
1713                 return NULL;
1714
1715         os_memcpy(buf, "hash:", 5);
1716         wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1717
1718         return buf;
1719 }
1720 #endif /* NO_CONFIG_WRITE */
1721 #endif /* IEEE8021X_EAPOL */
1722
1723
1724 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1725                                     const char *value, int idx)
1726 {
1727         char *buf, title[20];
1728         int res;
1729
1730         buf = wpa_config_parse_string(value, len);
1731         if (buf == NULL) {
1732                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1733                            line, idx, value);
1734                 return -1;
1735         }
1736         if (*len > MAX_WEP_KEY_LEN) {
1737                 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1738                            line, idx, value);
1739                 os_free(buf);
1740                 return -1;
1741         }
1742         if (*len && *len != 5 && *len != 13 && *len != 16) {
1743                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1744                            "this network block will be ignored",
1745                            line, (unsigned int) *len);
1746         }
1747         os_memcpy(key, buf, *len);
1748         str_clear_free(buf);
1749         res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1750         if (!os_snprintf_error(sizeof(title), res))
1751                 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1752         return 0;
1753 }
1754
1755
1756 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1757                                      struct wpa_ssid *ssid, int line,
1758                                      const char *value)
1759 {
1760         return wpa_config_parse_wep_key(ssid->wep_key[0],
1761                                         &ssid->wep_key_len[0], line,
1762                                         value, 0);
1763 }
1764
1765
1766 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1767                                      struct wpa_ssid *ssid, int line,
1768                                      const char *value)
1769 {
1770         return wpa_config_parse_wep_key(ssid->wep_key[1],
1771                                         &ssid->wep_key_len[1], line,
1772                                         value, 1);
1773 }
1774
1775
1776 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1777                                      struct wpa_ssid *ssid, int line,
1778                                      const char *value)
1779 {
1780         return wpa_config_parse_wep_key(ssid->wep_key[2],
1781                                         &ssid->wep_key_len[2], line,
1782                                         value, 2);
1783 }
1784
1785
1786 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1787                                      struct wpa_ssid *ssid, int line,
1788                                      const char *value)
1789 {
1790         return wpa_config_parse_wep_key(ssid->wep_key[3],
1791                                         &ssid->wep_key_len[3], line,
1792                                         value, 3);
1793 }
1794
1795
1796 #ifndef NO_CONFIG_WRITE
1797 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1798 {
1799         if (ssid->wep_key_len[idx] == 0)
1800                 return NULL;
1801         return wpa_config_write_string(ssid->wep_key[idx],
1802                                        ssid->wep_key_len[idx]);
1803 }
1804
1805
1806 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1807                                         struct wpa_ssid *ssid)
1808 {
1809         return wpa_config_write_wep_key(ssid, 0);
1810 }
1811
1812
1813 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1814                                         struct wpa_ssid *ssid)
1815 {
1816         return wpa_config_write_wep_key(ssid, 1);
1817 }
1818
1819
1820 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1821                                         struct wpa_ssid *ssid)
1822 {
1823         return wpa_config_write_wep_key(ssid, 2);
1824 }
1825
1826
1827 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1828                                         struct wpa_ssid *ssid)
1829 {
1830         return wpa_config_write_wep_key(ssid, 3);
1831 }
1832 #endif /* NO_CONFIG_WRITE */
1833
1834
1835 #ifdef CONFIG_P2P
1836
1837 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1838                                             struct wpa_ssid *ssid, int line,
1839                                             const char *value)
1840 {
1841         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1842             os_strcmp(value, "any") == 0) {
1843                 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1844                 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1845                 return 0;
1846         }
1847         if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1848                 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1849                            line, value);
1850                 return -1;
1851         }
1852         ssid->bssid_set = 1;
1853         wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1854                    MAC2STR(ssid->go_p2p_dev_addr));
1855         return 0;
1856 }
1857
1858
1859 #ifndef NO_CONFIG_WRITE
1860 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1861                                                struct wpa_ssid *ssid)
1862 {
1863         char *value;
1864         int res;
1865
1866         if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1867                 return NULL;
1868
1869         value = os_malloc(20);
1870         if (value == NULL)
1871                 return NULL;
1872         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1873         if (os_snprintf_error(20, res)) {
1874                 os_free(value);
1875                 return NULL;
1876         }
1877         value[20 - 1] = '\0';
1878         return value;
1879 }
1880 #endif /* NO_CONFIG_WRITE */
1881
1882
1883 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1884                                             struct wpa_ssid *ssid, int line,
1885                                             const char *value)
1886 {
1887         return wpa_config_parse_addr_list(data, line, value,
1888                                           &ssid->p2p_client_list,
1889                                           &ssid->num_p2p_clients,
1890                                           "p2p_client_list", 0, 0);
1891 }
1892
1893
1894 #ifndef NO_CONFIG_WRITE
1895 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1896                                                struct wpa_ssid *ssid)
1897 {
1898         return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1899                                           ssid->num_p2p_clients,
1900                                           "p2p_client_list");
1901 }
1902 #endif /* NO_CONFIG_WRITE */
1903
1904
1905 static int wpa_config_parse_psk_list(const struct parse_data *data,
1906                                      struct wpa_ssid *ssid, int line,
1907                                      const char *value)
1908 {
1909         struct psk_list_entry *p;
1910         const char *pos;
1911
1912         p = os_zalloc(sizeof(*p));
1913         if (p == NULL)
1914                 return -1;
1915
1916         pos = value;
1917         if (os_strncmp(pos, "P2P-", 4) == 0) {
1918                 p->p2p = 1;
1919                 pos += 4;
1920         }
1921
1922         if (hwaddr_aton(pos, p->addr)) {
1923                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1924                            line, pos);
1925                 os_free(p);
1926                 return -1;
1927         }
1928         pos += 17;
1929         if (*pos != '-') {
1930                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1931                            line, pos);
1932                 os_free(p);
1933                 return -1;
1934         }
1935         pos++;
1936
1937         if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1938                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1939                            line, pos);
1940                 os_free(p);
1941                 return -1;
1942         }
1943
1944         dl_list_add(&ssid->psk_list, &p->list);
1945
1946         return 0;
1947 }
1948
1949
1950 #ifndef NO_CONFIG_WRITE
1951 static char * wpa_config_write_psk_list(const struct parse_data *data,
1952                                         struct wpa_ssid *ssid)
1953 {
1954         return NULL;
1955 }
1956 #endif /* NO_CONFIG_WRITE */
1957
1958 #endif /* CONFIG_P2P */
1959
1960
1961 #ifdef CONFIG_MESH
1962
1963 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1964                                              struct wpa_ssid *ssid, int line,
1965                                              const char *value)
1966 {
1967         int *rates = wpa_config_parse_int_array(value);
1968
1969         if (rates == NULL) {
1970                 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1971                            line, value);
1972                 return -1;
1973         }
1974         if (rates[0] == 0) {
1975                 os_free(rates);
1976                 rates = NULL;
1977         }
1978
1979         os_free(ssid->mesh_basic_rates);
1980         ssid->mesh_basic_rates = rates;
1981
1982         return 0;
1983 }
1984
1985
1986 #ifndef NO_CONFIG_WRITE
1987
1988 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1989                                                 struct wpa_ssid *ssid)
1990 {
1991         return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1992 }
1993
1994 #endif /* NO_CONFIG_WRITE */
1995
1996 #endif /* CONFIG_MESH */
1997
1998
1999 #ifdef CONFIG_MACSEC
2000
2001 static int wpa_config_parse_mka_cak(const struct parse_data *data,
2002                                     struct wpa_ssid *ssid, int line,
2003                                     const char *value)
2004 {
2005         size_t len;
2006
2007         len = os_strlen(value);
2008         if (len > 2 * MACSEC_CAK_MAX_LEN ||
2009             (len != 2 * 16 && len != 2 * 32) ||
2010             hexstr2bin(value, ssid->mka_cak, len / 2)) {
2011                 wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CAK '%s'.",
2012                            line, value);
2013                 return -1;
2014         }
2015         ssid->mka_cak_len = len / 2;
2016         ssid->mka_psk_set |= MKA_PSK_SET_CAK;
2017
2018         wpa_hexdump_key(MSG_MSGDUMP, "MKA-CAK", ssid->mka_cak,
2019                         ssid->mka_cak_len);
2020         return 0;
2021 }
2022
2023
2024 static int wpa_config_parse_mka_ckn(const struct parse_data *data,
2025                                     struct wpa_ssid *ssid, int line,
2026                                     const char *value)
2027 {
2028         size_t len;
2029
2030         len = os_strlen(value);
2031         if (len > 2 * MACSEC_CKN_MAX_LEN || /* too long */
2032             len < 2 || /* too short */
2033             len % 2 != 0 /* not an integral number of bytes */) {
2034                 wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CKN '%s'.",
2035                            line, value);
2036                 return -1;
2037         }
2038         ssid->mka_ckn_len = len / 2;
2039         if (hexstr2bin(value, ssid->mka_ckn, ssid->mka_ckn_len)) {
2040                 wpa_printf(MSG_ERROR, "Line %d: Invalid MKA-CKN '%s'.",
2041                            line, value);
2042                 return -1;
2043         }
2044
2045         ssid->mka_psk_set |= MKA_PSK_SET_CKN;
2046
2047         wpa_hexdump_key(MSG_MSGDUMP, "MKA-CKN", ssid->mka_ckn,
2048                         ssid->mka_ckn_len);
2049         return 0;
2050 }
2051
2052
2053 #ifndef NO_CONFIG_WRITE
2054
2055 static char * wpa_config_write_mka_cak(const struct parse_data *data,
2056                                        struct wpa_ssid *ssid)
2057 {
2058         if (!(ssid->mka_psk_set & MKA_PSK_SET_CAK))
2059                 return NULL;
2060
2061         return wpa_config_write_string_hex(ssid->mka_cak, ssid->mka_cak_len);
2062 }
2063
2064
2065 static char * wpa_config_write_mka_ckn(const struct parse_data *data,
2066                                        struct wpa_ssid *ssid)
2067 {
2068         if (!(ssid->mka_psk_set & MKA_PSK_SET_CKN))
2069                 return NULL;
2070         return wpa_config_write_string_hex(ssid->mka_ckn, ssid->mka_ckn_len);
2071 }
2072
2073 #endif /* NO_CONFIG_WRITE */
2074
2075 #endif /* CONFIG_MACSEC */
2076
2077
2078 #ifdef CONFIG_OCV
2079
2080 static int wpa_config_parse_ocv(const struct parse_data *data,
2081                                 struct wpa_ssid *ssid, int line,
2082                                 const char *value)
2083 {
2084         char *end;
2085
2086         ssid->ocv = strtol(value, &end, 0);
2087         if (*end || ssid->ocv < 0 || ssid->ocv > 1) {
2088                 wpa_printf(MSG_ERROR, "Line %d: Invalid ocv value '%s'.",
2089                            line, value);
2090                 return -1;
2091         }
2092         if (ssid->ocv && ssid->ieee80211w == NO_MGMT_FRAME_PROTECTION)
2093                 ssid->ieee80211w = MGMT_FRAME_PROTECTION_OPTIONAL;
2094         return 0;
2095 }
2096
2097
2098 #ifndef NO_CONFIG_WRITE
2099 static char * wpa_config_write_ocv(const struct parse_data *data,
2100                                    struct wpa_ssid *ssid)
2101 {
2102         char *value = os_malloc(20);
2103
2104         if (!value)
2105                 return NULL;
2106         os_snprintf(value, 20, "%d", ssid->ocv);
2107         value[20 - 1] = '\0';
2108         return value;
2109 }
2110 #endif /* NO_CONFIG_WRITE */
2111
2112 #endif /* CONFIG_OCV */
2113
2114
2115 static int wpa_config_parse_peerkey(const struct parse_data *data,
2116                                     struct wpa_ssid *ssid, int line,
2117                                     const char *value)
2118 {
2119         wpa_printf(MSG_INFO, "NOTE: Obsolete peerkey parameter ignored");
2120         return 0;
2121 }
2122
2123
2124 #ifndef NO_CONFIG_WRITE
2125 static char * wpa_config_write_peerkey(const struct parse_data *data,
2126                                        struct wpa_ssid *ssid)
2127 {
2128         return NULL;
2129 }
2130 #endif /* NO_CONFIG_WRITE */
2131
2132
2133 /* Helper macros for network block parser */
2134
2135 #ifdef OFFSET
2136 #undef OFFSET
2137 #endif /* OFFSET */
2138 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
2139 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
2140
2141 /* STR: Define a string variable for an ASCII string; f = field name */
2142 #ifdef NO_CONFIG_WRITE
2143 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
2144 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
2145 #else /* NO_CONFIG_WRITE */
2146 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
2147 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
2148 #endif /* NO_CONFIG_WRITE */
2149 #define STR(f) _STR(f), NULL, NULL, NULL, 0
2150 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
2151 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
2152 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
2153
2154 /* STR_LEN: Define a string variable with a separate variable for storing the
2155  * data length. Unlike STR(), this can be used to store arbitrary binary data
2156  * (i.e., even nul termination character). */
2157 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
2158 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
2159 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
2160 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
2161 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
2162
2163 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
2164  * explicitly specified. */
2165 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
2166 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
2167 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
2168
2169 #ifdef NO_CONFIG_WRITE
2170 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
2171 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
2172 #else /* NO_CONFIG_WRITE */
2173 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2174         OFFSET(f), (void *) 0
2175 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
2176         OFFSET(eap.f), (void *) 0
2177 #endif /* NO_CONFIG_WRITE */
2178
2179 /* INT: Define an integer variable */
2180 #define INT(f) _INT(f), NULL, NULL, 0
2181 #define INTe(f) _INTe(f), NULL, NULL, 0
2182
2183 /* INT_RANGE: Define an integer variable with allowed value range */
2184 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
2185
2186 /* FUNC: Define a configuration variable that uses a custom function for
2187  * parsing and writing the value. */
2188 #ifdef NO_CONFIG_WRITE
2189 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
2190 #else /* NO_CONFIG_WRITE */
2191 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
2192         NULL, NULL, NULL, NULL
2193 #endif /* NO_CONFIG_WRITE */
2194 #define FUNC(f) _FUNC(f), 0
2195 #define FUNC_KEY(f) _FUNC(f), 1
2196
2197 /*
2198  * Table of network configuration variables. This table is used to parse each
2199  * network configuration variable, e.g., each line in wpa_supplicant.conf file
2200  * that is inside a network block.
2201  *
2202  * This table is generated using the helper macros defined above and with
2203  * generous help from the C pre-processor. The field name is stored as a string
2204  * into .name and for STR and INT types, the offset of the target buffer within
2205  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
2206  * offset to the field containing the length of the configuration variable.
2207  * .param3 and .param4 can be used to mark the allowed range (length for STR
2208  * and value for INT).
2209  *
2210  * For each configuration line in wpa_supplicant.conf, the parser goes through
2211  * this table and select the entry that matches with the field name. The parser
2212  * function (.parser) is then called to parse the actual value of the field.
2213  *
2214  * This kind of mechanism makes it easy to add new configuration parameters,
2215  * since only one line needs to be added into this table and into the
2216  * struct wpa_ssid definition if the new variable is either a string or
2217  * integer. More complex types will need to use their own parser and writer
2218  * functions.
2219  */
2220 static const struct parse_data ssid_fields[] = {
2221         { STR_RANGE(ssid, 0, SSID_MAX_LEN) },
2222         { INT_RANGE(scan_ssid, 0, 1) },
2223         { FUNC(bssid) },
2224         { FUNC(bssid_hint) },
2225         { FUNC(bssid_blacklist) },
2226         { FUNC(bssid_whitelist) },
2227         { FUNC_KEY(psk) },
2228         { INT(mem_only_psk) },
2229         { STR_KEY(sae_password) },
2230         { STR(sae_password_id) },
2231         { FUNC(proto) },
2232         { FUNC(key_mgmt) },
2233         { INT(bg_scan_period) },
2234         { FUNC(pairwise) },
2235         { FUNC(group) },
2236         { FUNC(group_mgmt) },
2237         { FUNC(auth_alg) },
2238         { FUNC(scan_freq) },
2239         { FUNC(freq_list) },
2240         { INT_RANGE(ht, 0, 1) },
2241         { INT_RANGE(vht, 0, 1) },
2242         { INT_RANGE(ht40, -1, 1) },
2243         { INT_RANGE(max_oper_chwidth, CHANWIDTH_USE_HT,
2244                     CHANWIDTH_80P80MHZ) },
2245         { INT(vht_center_freq1) },
2246         { INT(vht_center_freq2) },
2247 #ifdef IEEE8021X_EAPOL
2248         { FUNC(eap) },
2249         { STR_LENe(identity) },
2250         { STR_LENe(anonymous_identity) },
2251         { STR_LENe(imsi_identity) },
2252         { FUNC_KEY(password) },
2253         { STRe(ca_cert) },
2254         { STRe(ca_path) },
2255         { STRe(client_cert) },
2256         { STRe(private_key) },
2257         { STR_KEYe(private_key_passwd) },
2258         { STRe(dh_file) },
2259         { STRe(subject_match) },
2260         { STRe(check_cert_subject) },
2261         { STRe(altsubject_match) },
2262         { STRe(domain_suffix_match) },
2263         { STRe(domain_match) },
2264         { STRe(ca_cert2) },
2265         { STRe(ca_path2) },
2266         { STRe(client_cert2) },
2267         { STRe(private_key2) },
2268         { STR_KEYe(private_key2_passwd) },
2269         { STRe(dh_file2) },
2270         { STRe(subject_match2) },
2271         { STRe(check_cert_subject2) },
2272         { STRe(altsubject_match2) },
2273         { STRe(domain_suffix_match2) },
2274         { STRe(domain_match2) },
2275         { STRe(phase1) },
2276         { STRe(phase2) },
2277         { STRe(pcsc) },
2278         { STR_KEYe(pin) },
2279         { STRe(engine_id) },
2280         { STRe(key_id) },
2281         { STRe(cert_id) },
2282         { STRe(ca_cert_id) },
2283         { STR_KEYe(pin2) },
2284         { STRe(engine2_id) },
2285         { STRe(key2_id) },
2286         { STRe(cert2_id) },
2287         { STRe(ca_cert2_id) },
2288         { INTe(engine) },
2289         { INTe(engine2) },
2290         { INT(eapol_flags) },
2291         { INTe(sim_num) },
2292         { STRe(openssl_ciphers) },
2293         { INTe(erp) },
2294 #endif /* IEEE8021X_EAPOL */
2295         { FUNC_KEY(wep_key0) },
2296         { FUNC_KEY(wep_key1) },
2297         { FUNC_KEY(wep_key2) },
2298         { FUNC_KEY(wep_key3) },
2299         { INT(wep_tx_keyidx) },
2300         { INT(priority) },
2301 #ifdef IEEE8021X_EAPOL
2302         { INT(eap_workaround) },
2303         { STRe(pac_file) },
2304         { INTe(fragment_size) },
2305         { INTe(ocsp) },
2306 #endif /* IEEE8021X_EAPOL */
2307 #ifdef CONFIG_MESH
2308         { INT_RANGE(mode, 0, 5) },
2309         { INT_RANGE(no_auto_peer, 0, 1) },
2310         { INT_RANGE(mesh_rssi_threshold, -255, 1) },
2311 #else /* CONFIG_MESH */
2312         { INT_RANGE(mode, 0, 4) },
2313 #endif /* CONFIG_MESH */
2314         { INT_RANGE(proactive_key_caching, 0, 1) },
2315         { INT_RANGE(disabled, 0, 2) },
2316         { STR(id_str) },
2317 #ifdef CONFIG_IEEE80211W
2318         { INT_RANGE(ieee80211w, 0, 2) },
2319 #endif /* CONFIG_IEEE80211W */
2320 #ifdef CONFIG_OCV
2321         { FUNC(ocv) },
2322 #endif /* CONFIG_OCV */
2323         { FUNC(peerkey) /* obsolete - removed */ },
2324         { INT_RANGE(mixed_cell, 0, 1) },
2325         { INT_RANGE(frequency, 0, 65000) },
2326         { INT_RANGE(fixed_freq, 0, 1) },
2327 #ifdef CONFIG_ACS
2328         { INT_RANGE(acs, 0, 1) },
2329 #endif /* CONFIG_ACS */
2330 #ifdef CONFIG_MESH
2331         { FUNC(mesh_basic_rates) },
2332         { INT(dot11MeshMaxRetries) },
2333         { INT(dot11MeshRetryTimeout) },
2334         { INT(dot11MeshConfirmTimeout) },
2335         { INT(dot11MeshHoldingTimeout) },
2336 #endif /* CONFIG_MESH */
2337         { INT(wpa_ptk_rekey) },
2338         { INT(group_rekey) },
2339         { STR(bgscan) },
2340         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
2341 #ifdef CONFIG_P2P
2342         { FUNC(go_p2p_dev_addr) },
2343         { FUNC(p2p_client_list) },
2344         { FUNC(psk_list) },
2345 #endif /* CONFIG_P2P */
2346 #ifdef CONFIG_HT_OVERRIDES
2347         { INT_RANGE(disable_ht, 0, 1) },
2348         { INT_RANGE(disable_ht40, -1, 1) },
2349         { INT_RANGE(disable_sgi, 0, 1) },
2350         { INT_RANGE(disable_ldpc, 0, 1) },
2351         { INT_RANGE(ht40_intolerant, 0, 1) },
2352         { INT_RANGE(tx_stbc, -1, 1) },
2353         { INT_RANGE(rx_stbc, -1, 3) },
2354         { INT_RANGE(disable_max_amsdu, -1, 1) },
2355         { INT_RANGE(ampdu_factor, -1, 3) },
2356         { INT_RANGE(ampdu_density, -1, 7) },
2357         { STR(ht_mcs) },
2358 #endif /* CONFIG_HT_OVERRIDES */
2359 #ifdef CONFIG_VHT_OVERRIDES
2360         { INT_RANGE(disable_vht, 0, 1) },
2361         { INT(vht_capa) },
2362         { INT(vht_capa_mask) },
2363         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
2364         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
2365         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
2366         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
2367         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
2368         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
2369         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
2370         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
2371         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
2372         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
2373         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
2374         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
2375         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
2376         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
2377         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
2378         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
2379 #endif /* CONFIG_VHT_OVERRIDES */
2380         { INT(ap_max_inactivity) },
2381         { INT(dtim_period) },
2382         { INT(beacon_int) },
2383 #ifdef CONFIG_MACSEC
2384         { INT_RANGE(macsec_policy, 0, 1) },
2385         { INT_RANGE(macsec_integ_only, 0, 1) },
2386         { INT_RANGE(macsec_replay_protect, 0, 1) },
2387         { INT(macsec_replay_window) },
2388         { INT_RANGE(macsec_port, 1, 65534) },
2389         { INT_RANGE(mka_priority, 0, 255) },
2390         { FUNC_KEY(mka_cak) },
2391         { FUNC_KEY(mka_ckn) },
2392 #endif /* CONFIG_MACSEC */
2393 #ifdef CONFIG_HS20
2394         { INT(update_identifier) },
2395         { STR_RANGE(roaming_consortium_selection, 0, MAX_ROAMING_CONS_OI_LEN) },
2396 #endif /* CONFIG_HS20 */
2397         { INT_RANGE(mac_addr, 0, 2) },
2398         { INT_RANGE(pbss, 0, 2) },
2399         { INT_RANGE(wps_disabled, 0, 1) },
2400         { INT_RANGE(fils_dh_group, 0, 65535) },
2401 #ifdef CONFIG_DPP
2402         { STR(dpp_connector) },
2403         { STR_LEN(dpp_netaccesskey) },
2404         { INT(dpp_netaccesskey_expiry) },
2405         { STR_LEN(dpp_csign) },
2406 #endif /* CONFIG_DPP */
2407         { INT_RANGE(owe_group, 0, 65535) },
2408         { INT_RANGE(owe_only, 0, 1) },
2409         { INT_RANGE(multi_ap_backhaul_sta, 0, 1) },
2410         { INT_RANGE(ft_eap_pmksa_caching, 0, 1) },
2411 };
2412
2413 #undef OFFSET
2414 #undef _STR
2415 #undef STR
2416 #undef STR_KEY
2417 #undef _STR_LEN
2418 #undef STR_LEN
2419 #undef STR_LEN_KEY
2420 #undef _STR_RANGE
2421 #undef STR_RANGE
2422 #undef STR_RANGE_KEY
2423 #undef _INT
2424 #undef INT
2425 #undef INT_RANGE
2426 #undef _FUNC
2427 #undef FUNC
2428 #undef FUNC_KEY
2429 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
2430
2431
2432 /**
2433  * wpa_config_add_prio_network - Add a network to priority lists
2434  * @config: Configuration data from wpa_config_read()
2435  * @ssid: Pointer to the network configuration to be added to the list
2436  * Returns: 0 on success, -1 on failure
2437  *
2438  * This function is used to add a network block to the priority list of
2439  * networks. This must be called for each network when reading in the full
2440  * configuration. In addition, this can be used indirectly when updating
2441  * priorities by calling wpa_config_update_prio_list().
2442  */
2443 int wpa_config_add_prio_network(struct wpa_config *config,
2444                                 struct wpa_ssid *ssid)
2445 {
2446         int prio;
2447         struct wpa_ssid *prev, **nlist;
2448
2449         /*
2450          * Add to an existing priority list if one is available for the
2451          * configured priority level for this network.
2452          */
2453         for (prio = 0; prio < config->num_prio; prio++) {
2454                 prev = config->pssid[prio];
2455                 if (prev->priority == ssid->priority) {
2456                         while (prev->pnext)
2457                                 prev = prev->pnext;
2458                         prev->pnext = ssid;
2459                         return 0;
2460                 }
2461         }
2462
2463         /* First network for this priority - add a new priority list */
2464         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2465                                  sizeof(struct wpa_ssid *));
2466         if (nlist == NULL)
2467                 return -1;
2468
2469         for (prio = 0; prio < config->num_prio; prio++) {
2470                 if (nlist[prio]->priority < ssid->priority) {
2471                         os_memmove(&nlist[prio + 1], &nlist[prio],
2472                                    (config->num_prio - prio) *
2473                                    sizeof(struct wpa_ssid *));
2474                         break;
2475                 }
2476         }
2477
2478         nlist[prio] = ssid;
2479         config->num_prio++;
2480         config->pssid = nlist;
2481
2482         return 0;
2483 }
2484
2485
2486 /**
2487  * wpa_config_update_prio_list - Update network priority list
2488  * @config: Configuration data from wpa_config_read()
2489  * Returns: 0 on success, -1 on failure
2490  *
2491  * This function is called to update the priority list of networks in the
2492  * configuration when a network is being added or removed. This is also called
2493  * if a priority for a network is changed.
2494  */
2495 int wpa_config_update_prio_list(struct wpa_config *config)
2496 {
2497         struct wpa_ssid *ssid;
2498         int ret = 0;
2499
2500         os_free(config->pssid);
2501         config->pssid = NULL;
2502         config->num_prio = 0;
2503
2504         ssid = config->ssid;
2505         while (ssid) {
2506                 ssid->pnext = NULL;
2507                 if (wpa_config_add_prio_network(config, ssid) < 0)
2508                         ret = -1;
2509                 ssid = ssid->next;
2510         }
2511
2512         return ret;
2513 }
2514
2515
2516 #ifdef IEEE8021X_EAPOL
2517 static void eap_peer_config_free(struct eap_peer_config *eap)
2518 {
2519         os_free(eap->eap_methods);
2520         bin_clear_free(eap->identity, eap->identity_len);
2521         os_free(eap->anonymous_identity);
2522         os_free(eap->imsi_identity);
2523         bin_clear_free(eap->password, eap->password_len);
2524         os_free(eap->ca_cert);
2525         os_free(eap->ca_path);
2526         os_free(eap->client_cert);
2527         os_free(eap->private_key);
2528         str_clear_free(eap->private_key_passwd);
2529         os_free(eap->dh_file);
2530         os_free(eap->subject_match);
2531         os_free(eap->check_cert_subject);
2532         os_free(eap->altsubject_match);
2533         os_free(eap->domain_suffix_match);
2534         os_free(eap->domain_match);
2535         os_free(eap->ca_cert2);
2536         os_free(eap->ca_path2);
2537         os_free(eap->client_cert2);
2538         os_free(eap->private_key2);
2539         str_clear_free(eap->private_key2_passwd);
2540         os_free(eap->dh_file2);
2541         os_free(eap->subject_match2);
2542         os_free(eap->check_cert_subject2);
2543         os_free(eap->altsubject_match2);
2544         os_free(eap->domain_suffix_match2);
2545         os_free(eap->domain_match2);
2546         os_free(eap->phase1);
2547         os_free(eap->phase2);
2548         os_free(eap->pcsc);
2549         str_clear_free(eap->pin);
2550         os_free(eap->engine_id);
2551         os_free(eap->key_id);
2552         os_free(eap->cert_id);
2553         os_free(eap->ca_cert_id);
2554         os_free(eap->key2_id);
2555         os_free(eap->cert2_id);
2556         os_free(eap->ca_cert2_id);
2557         str_clear_free(eap->pin2);
2558         os_free(eap->engine2_id);
2559         os_free(eap->otp);
2560         os_free(eap->pending_req_otp);
2561         os_free(eap->pac_file);
2562         bin_clear_free(eap->new_password, eap->new_password_len);
2563         str_clear_free(eap->external_sim_resp);
2564         os_free(eap->openssl_ciphers);
2565 }
2566 #endif /* IEEE8021X_EAPOL */
2567
2568
2569 /**
2570  * wpa_config_free_ssid - Free network/ssid configuration data
2571  * @ssid: Configuration data for the network
2572  *
2573  * This function frees all resources allocated for the network configuration
2574  * data.
2575  */
2576 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2577 {
2578         struct psk_list_entry *psk;
2579
2580         os_free(ssid->ssid);
2581         str_clear_free(ssid->passphrase);
2582         os_free(ssid->ext_psk);
2583         str_clear_free(ssid->sae_password);
2584         os_free(ssid->sae_password_id);
2585 #ifdef IEEE8021X_EAPOL
2586         eap_peer_config_free(&ssid->eap);
2587 #endif /* IEEE8021X_EAPOL */
2588         os_free(ssid->id_str);
2589         os_free(ssid->scan_freq);
2590         os_free(ssid->freq_list);
2591         os_free(ssid->bgscan);
2592         os_free(ssid->p2p_client_list);
2593         os_free(ssid->bssid_blacklist);
2594         os_free(ssid->bssid_whitelist);
2595 #ifdef CONFIG_HT_OVERRIDES
2596         os_free(ssid->ht_mcs);
2597 #endif /* CONFIG_HT_OVERRIDES */
2598 #ifdef CONFIG_MESH
2599         os_free(ssid->mesh_basic_rates);
2600 #endif /* CONFIG_MESH */
2601 #ifdef CONFIG_HS20
2602         os_free(ssid->roaming_consortium_selection);
2603 #endif /* CONFIG_HS20 */
2604         os_free(ssid->dpp_connector);
2605         bin_clear_free(ssid->dpp_netaccesskey, ssid->dpp_netaccesskey_len);
2606         os_free(ssid->dpp_csign);
2607         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2608                                     list))) {
2609                 dl_list_del(&psk->list);
2610                 bin_clear_free(psk, sizeof(*psk));
2611         }
2612         bin_clear_free(ssid, sizeof(*ssid));
2613 }
2614
2615
2616 void wpa_config_free_cred(struct wpa_cred *cred)
2617 {
2618         size_t i;
2619
2620         os_free(cred->realm);
2621         str_clear_free(cred->username);
2622         str_clear_free(cred->password);
2623         os_free(cred->ca_cert);
2624         os_free(cred->client_cert);
2625         os_free(cred->private_key);
2626         str_clear_free(cred->private_key_passwd);
2627         os_free(cred->imsi);
2628         str_clear_free(cred->milenage);
2629         for (i = 0; i < cred->num_domain; i++)
2630                 os_free(cred->domain[i]);
2631         os_free(cred->domain);
2632         os_free(cred->domain_suffix_match);
2633         os_free(cred->eap_method);
2634         os_free(cred->phase1);
2635         os_free(cred->phase2);
2636         os_free(cred->excluded_ssid);
2637         os_free(cred->roaming_partner);
2638         os_free(cred->provisioning_sp);
2639         for (i = 0; i < cred->num_req_conn_capab; i++)
2640                 os_free(cred->req_conn_capab_port[i]);
2641         os_free(cred->req_conn_capab_port);
2642         os_free(cred->req_conn_capab_proto);
2643         os_free(cred);
2644 }
2645
2646
2647 void wpa_config_flush_blobs(struct wpa_config *config)
2648 {
2649 #ifndef CONFIG_NO_CONFIG_BLOBS
2650         struct wpa_config_blob *blob, *prev;
2651
2652         blob = config->blobs;
2653         config->blobs = NULL;
2654         while (blob) {
2655                 prev = blob;
2656                 blob = blob->next;
2657                 wpa_config_free_blob(prev);
2658         }
2659 #endif /* CONFIG_NO_CONFIG_BLOBS */
2660 }
2661
2662
2663 /**
2664  * wpa_config_free - Free configuration data
2665  * @config: Configuration data from wpa_config_read()
2666  *
2667  * This function frees all resources allocated for the configuration data by
2668  * wpa_config_read().
2669  */
2670 void wpa_config_free(struct wpa_config *config)
2671 {
2672         struct wpa_ssid *ssid, *prev = NULL;
2673         struct wpa_cred *cred, *cprev;
2674         int i;
2675
2676         ssid = config->ssid;
2677         while (ssid) {
2678                 prev = ssid;
2679                 ssid = ssid->next;
2680                 wpa_config_free_ssid(prev);
2681         }
2682
2683         cred = config->cred;
2684         while (cred) {
2685                 cprev = cred;
2686                 cred = cred->next;
2687                 wpa_config_free_cred(cprev);
2688         }
2689
2690         wpa_config_flush_blobs(config);
2691
2692         wpabuf_free(config->wps_vendor_ext_m1);
2693         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2694                 wpabuf_free(config->wps_vendor_ext[i]);
2695         os_free(config->ctrl_interface);
2696         os_free(config->ctrl_interface_group);
2697         os_free(config->opensc_engine_path);
2698         os_free(config->pkcs11_engine_path);
2699         os_free(config->pkcs11_module_path);
2700         os_free(config->openssl_ciphers);
2701         os_free(config->pcsc_reader);
2702         str_clear_free(config->pcsc_pin);
2703         os_free(config->driver_param);
2704         os_free(config->device_name);
2705         os_free(config->manufacturer);
2706         os_free(config->model_name);
2707         os_free(config->model_number);
2708         os_free(config->serial_number);
2709         os_free(config->config_methods);
2710         os_free(config->p2p_ssid_postfix);
2711         os_free(config->pssid);
2712         os_free(config->p2p_pref_chan);
2713         os_free(config->p2p_no_go_freq.range);
2714         os_free(config->autoscan);
2715         os_free(config->freq_list);
2716         wpabuf_free(config->wps_nfc_dh_pubkey);
2717         wpabuf_free(config->wps_nfc_dh_privkey);
2718         wpabuf_free(config->wps_nfc_dev_pw);
2719         os_free(config->ext_password_backend);
2720         os_free(config->sae_groups);
2721         wpabuf_free(config->ap_vendor_elements);
2722         os_free(config->osu_dir);
2723         os_free(config->bgscan);
2724         os_free(config->wowlan_triggers);
2725         os_free(config->fst_group_id);
2726         os_free(config->sched_scan_plans);
2727 #ifdef CONFIG_MBO
2728         os_free(config->non_pref_chan);
2729 #endif /* CONFIG_MBO */
2730
2731         os_free(config);
2732 }
2733
2734
2735 /**
2736  * wpa_config_foreach_network - Iterate over each configured network
2737  * @config: Configuration data from wpa_config_read()
2738  * @func: Callback function to process each network
2739  * @arg: Opaque argument to pass to callback function
2740  *
2741  * Iterate over the set of configured networks calling the specified
2742  * function for each item. We guard against callbacks removing the
2743  * supplied network.
2744  */
2745 void wpa_config_foreach_network(struct wpa_config *config,
2746                                 void (*func)(void *, struct wpa_ssid *),
2747                                 void *arg)
2748 {
2749         struct wpa_ssid *ssid, *next;
2750
2751         ssid = config->ssid;
2752         while (ssid) {
2753                 next = ssid->next;
2754                 func(arg, ssid);
2755                 ssid = next;
2756         }
2757 }
2758
2759
2760 /**
2761  * wpa_config_get_network - Get configured network based on id
2762  * @config: Configuration data from wpa_config_read()
2763  * @id: Unique network id to search for
2764  * Returns: Network configuration or %NULL if not found
2765  */
2766 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2767 {
2768         struct wpa_ssid *ssid;
2769
2770         ssid = config->ssid;
2771         while (ssid) {
2772                 if (id == ssid->id)
2773                         break;
2774                 ssid = ssid->next;
2775         }
2776
2777         return ssid;
2778 }
2779
2780
2781 /**
2782  * wpa_config_add_network - Add a new network with empty configuration
2783  * @config: Configuration data from wpa_config_read()
2784  * Returns: The new network configuration or %NULL if operation failed
2785  */
2786 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2787 {
2788         int id;
2789         struct wpa_ssid *ssid, *last = NULL;
2790
2791         id = -1;
2792         ssid = config->ssid;
2793         while (ssid) {
2794                 if (ssid->id > id)
2795                         id = ssid->id;
2796                 last = ssid;
2797                 ssid = ssid->next;
2798         }
2799         id++;
2800
2801         ssid = os_zalloc(sizeof(*ssid));
2802         if (ssid == NULL)
2803                 return NULL;
2804         ssid->id = id;
2805         dl_list_init(&ssid->psk_list);
2806         if (last)
2807                 last->next = ssid;
2808         else
2809                 config->ssid = ssid;
2810
2811         wpa_config_update_prio_list(config);
2812
2813         return ssid;
2814 }
2815
2816
2817 /**
2818  * wpa_config_remove_network - Remove a configured network based on id
2819  * @config: Configuration data from wpa_config_read()
2820  * @id: Unique network id to search for
2821  * Returns: 0 on success, or -1 if the network was not found
2822  */
2823 int wpa_config_remove_network(struct wpa_config *config, int id)
2824 {
2825         struct wpa_ssid *ssid, *prev = NULL;
2826
2827         ssid = config->ssid;
2828         while (ssid) {
2829                 if (id == ssid->id)
2830                         break;
2831                 prev = ssid;
2832                 ssid = ssid->next;
2833         }
2834
2835         if (ssid == NULL)
2836                 return -1;
2837
2838         if (prev)
2839                 prev->next = ssid->next;
2840         else
2841                 config->ssid = ssid->next;
2842
2843         wpa_config_update_prio_list(config);
2844         wpa_config_free_ssid(ssid);
2845         return 0;
2846 }
2847
2848
2849 /**
2850  * wpa_config_set_network_defaults - Set network default values
2851  * @ssid: Pointer to network configuration data
2852  */
2853 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2854 {
2855         ssid->proto = DEFAULT_PROTO;
2856         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2857         ssid->group_cipher = DEFAULT_GROUP;
2858         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2859         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2860         ssid->ht = 1;
2861 #ifdef IEEE8021X_EAPOL
2862         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2863         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2864         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2865         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2866 #endif /* IEEE8021X_EAPOL */
2867 #ifdef CONFIG_MESH
2868         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2869         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2870         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2871         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2872         ssid->mesh_rssi_threshold = DEFAULT_MESH_RSSI_THRESHOLD;
2873 #endif /* CONFIG_MESH */
2874 #ifdef CONFIG_HT_OVERRIDES
2875         ssid->disable_ht = DEFAULT_DISABLE_HT;
2876         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2877         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2878         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2879         ssid->tx_stbc = DEFAULT_TX_STBC;
2880         ssid->rx_stbc = DEFAULT_RX_STBC;
2881         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2882         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2883         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2884 #endif /* CONFIG_HT_OVERRIDES */
2885 #ifdef CONFIG_VHT_OVERRIDES
2886         ssid->vht_rx_mcs_nss_1 = -1;
2887         ssid->vht_rx_mcs_nss_2 = -1;
2888         ssid->vht_rx_mcs_nss_3 = -1;
2889         ssid->vht_rx_mcs_nss_4 = -1;
2890         ssid->vht_rx_mcs_nss_5 = -1;
2891         ssid->vht_rx_mcs_nss_6 = -1;
2892         ssid->vht_rx_mcs_nss_7 = -1;
2893         ssid->vht_rx_mcs_nss_8 = -1;
2894         ssid->vht_tx_mcs_nss_1 = -1;
2895         ssid->vht_tx_mcs_nss_2 = -1;
2896         ssid->vht_tx_mcs_nss_3 = -1;
2897         ssid->vht_tx_mcs_nss_4 = -1;
2898         ssid->vht_tx_mcs_nss_5 = -1;
2899         ssid->vht_tx_mcs_nss_6 = -1;
2900         ssid->vht_tx_mcs_nss_7 = -1;
2901         ssid->vht_tx_mcs_nss_8 = -1;
2902 #endif /* CONFIG_VHT_OVERRIDES */
2903         ssid->proactive_key_caching = -1;
2904 #ifdef CONFIG_IEEE80211W
2905         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2906 #endif /* CONFIG_IEEE80211W */
2907 #ifdef CONFIG_MACSEC
2908         ssid->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
2909 #endif /* CONFIG_MACSEC */
2910         ssid->mac_addr = -1;
2911         ssid->max_oper_chwidth = DEFAULT_MAX_OPER_CHWIDTH;
2912 }
2913
2914
2915 /**
2916  * wpa_config_set - Set a variable in network configuration
2917  * @ssid: Pointer to network configuration data
2918  * @var: Variable name, e.g., "ssid"
2919  * @value: Variable value
2920  * @line: Line number in configuration file or 0 if not used
2921  * Returns: 0 on success with possible change in the value, 1 on success with
2922  * no change to previously configured value, or -1 on failure
2923  *
2924  * This function can be used to set network configuration variables based on
2925  * both the configuration file and management interface input. The value
2926  * parameter must be in the same format as the text-based configuration file is
2927  * using. For example, strings are using double quotation marks.
2928  */
2929 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2930                    int line)
2931 {
2932         size_t i;
2933         int ret = 0;
2934
2935         if (ssid == NULL || var == NULL || value == NULL)
2936                 return -1;
2937
2938         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2939                 const struct parse_data *field = &ssid_fields[i];
2940                 if (os_strcmp(var, field->name) != 0)
2941                         continue;
2942
2943                 ret = field->parser(field, ssid, line, value);
2944                 if (ret < 0) {
2945                         if (line) {
2946                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2947                                            "parse %s '%s'.", line, var, value);
2948                         }
2949                         ret = -1;
2950                 }
2951                 break;
2952         }
2953         if (i == NUM_SSID_FIELDS) {
2954                 if (line) {
2955                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2956                                    "'%s'.", line, var);
2957                 }
2958                 ret = -1;
2959         }
2960
2961         return ret;
2962 }
2963
2964
2965 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2966                           const char *value)
2967 {
2968         size_t len;
2969         char *buf;
2970         int ret;
2971
2972         len = os_strlen(value);
2973         buf = os_malloc(len + 3);
2974         if (buf == NULL)
2975                 return -1;
2976         buf[0] = '"';
2977         os_memcpy(buf + 1, value, len);
2978         buf[len + 1] = '"';
2979         buf[len + 2] = '\0';
2980         ret = wpa_config_set(ssid, var, buf, 0);
2981         os_free(buf);
2982         return ret;
2983 }
2984
2985
2986 /**
2987  * wpa_config_get_all - Get all options from network configuration
2988  * @ssid: Pointer to network configuration data
2989  * @get_keys: Determines if keys/passwords will be included in returned list
2990  *      (if they may be exported)
2991  * Returns: %NULL terminated list of all set keys and their values in the form
2992  * of [key1, val1, key2, val2, ... , NULL]
2993  *
2994  * This function can be used to get list of all configured network properties.
2995  * The caller is responsible for freeing the returned list and all its
2996  * elements.
2997  */
2998 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2999 {
3000 #ifdef NO_CONFIG_WRITE
3001         return NULL;
3002 #else /* NO_CONFIG_WRITE */
3003         const struct parse_data *field;
3004         char *key, *value;
3005         size_t i;
3006         char **props;
3007         int fields_num;
3008
3009         get_keys = get_keys && ssid->export_keys;
3010
3011         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
3012         if (!props)
3013                 return NULL;
3014
3015         fields_num = 0;
3016         for (i = 0; i < NUM_SSID_FIELDS; i++) {
3017                 field = &ssid_fields[i];
3018                 if (field->key_data && !get_keys)
3019                         continue;
3020                 value = field->writer(field, ssid);
3021                 if (value == NULL)
3022                         continue;
3023                 if (os_strlen(value) == 0) {
3024                         os_free(value);
3025                         continue;
3026                 }
3027
3028                 key = os_strdup(field->name);
3029                 if (key == NULL) {
3030                         os_free(value);
3031                         goto err;
3032                 }
3033
3034                 props[fields_num * 2] = key;
3035                 props[fields_num * 2 + 1] = value;
3036
3037                 fields_num++;
3038         }
3039
3040         return props;
3041
3042 err:
3043         for (i = 0; props[i]; i++)
3044                 os_free(props[i]);
3045         os_free(props);
3046         return NULL;
3047 #endif /* NO_CONFIG_WRITE */
3048 }
3049
3050
3051 #ifndef NO_CONFIG_WRITE
3052 /**
3053  * wpa_config_get - Get a variable in network configuration
3054  * @ssid: Pointer to network configuration data
3055  * @var: Variable name, e.g., "ssid"
3056  * Returns: Value of the variable or %NULL on failure
3057  *
3058  * This function can be used to get network configuration variables. The
3059  * returned value is a copy of the configuration variable in text format, i.e,.
3060  * the same format that the text-based configuration file and wpa_config_set()
3061  * are using for the value. The caller is responsible for freeing the returned
3062  * value.
3063  */
3064 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
3065 {
3066         size_t i;
3067
3068         if (ssid == NULL || var == NULL)
3069                 return NULL;
3070
3071         for (i = 0; i < NUM_SSID_FIELDS; i++) {
3072                 const struct parse_data *field = &ssid_fields[i];
3073                 if (os_strcmp(var, field->name) == 0) {
3074                         char *ret = field->writer(field, ssid);
3075
3076                         if (ret && has_newline(ret)) {
3077                                 wpa_printf(MSG_ERROR,
3078                                            "Found newline in value for %s; not returning it",
3079                                            var);
3080                                 os_free(ret);
3081                                 ret = NULL;
3082                         }
3083
3084                         return ret;
3085                 }
3086         }
3087
3088         return NULL;
3089 }
3090
3091
3092 /**
3093  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
3094  * @ssid: Pointer to network configuration data
3095  * @var: Variable name, e.g., "ssid"
3096  * Returns: Value of the variable or %NULL on failure
3097  *
3098  * This function can be used to get network configuration variable like
3099  * wpa_config_get(). The only difference is that this functions does not expose
3100  * key/password material from the configuration. In case a key/password field
3101  * is requested, the returned value is an empty string or %NULL if the variable
3102  * is not set or "*" if the variable is set (regardless of its value). The
3103  * returned value is a copy of the configuration variable in text format, i.e,.
3104  * the same format that the text-based configuration file and wpa_config_set()
3105  * are using for the value. The caller is responsible for freeing the returned
3106  * value.
3107  */
3108 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
3109 {
3110         size_t i;
3111
3112         if (ssid == NULL || var == NULL)
3113                 return NULL;
3114
3115         for (i = 0; i < NUM_SSID_FIELDS; i++) {
3116                 const struct parse_data *field = &ssid_fields[i];
3117                 if (os_strcmp(var, field->name) == 0) {
3118                         char *res = field->writer(field, ssid);
3119                         if (field->key_data) {
3120                                 if (res && res[0]) {
3121                                         wpa_printf(MSG_DEBUG, "Do not allow "
3122                                                    "key_data field to be "
3123                                                    "exposed");
3124                                         str_clear_free(res);
3125                                         return os_strdup("*");
3126                                 }
3127
3128                                 os_free(res);
3129                                 return NULL;
3130                         }
3131                         return res;
3132                 }
3133         }
3134
3135         return NULL;
3136 }
3137 #endif /* NO_CONFIG_WRITE */
3138
3139
3140 /**
3141  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
3142  * @ssid: Pointer to network configuration data
3143  *
3144  * This function must be called to update WPA PSK when either SSID or the
3145  * passphrase has changed for the network configuration.
3146  */
3147 void wpa_config_update_psk(struct wpa_ssid *ssid)
3148 {
3149 #ifndef CONFIG_NO_PBKDF2
3150         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
3151                     ssid->psk, PMK_LEN);
3152         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
3153                         ssid->psk, PMK_LEN);
3154         ssid->psk_set = 1;
3155 #endif /* CONFIG_NO_PBKDF2 */
3156 }
3157
3158
3159 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
3160                                               const char *value)
3161 {
3162         u8 *proto;
3163         int **port;
3164         int *ports, *nports;
3165         const char *pos;
3166         unsigned int num_ports;
3167
3168         proto = os_realloc_array(cred->req_conn_capab_proto,
3169                                  cred->num_req_conn_capab + 1, sizeof(u8));
3170         if (proto == NULL)
3171                 return -1;
3172         cred->req_conn_capab_proto = proto;
3173
3174         port = os_realloc_array(cred->req_conn_capab_port,
3175                                 cred->num_req_conn_capab + 1, sizeof(int *));
3176         if (port == NULL)
3177                 return -1;
3178         cred->req_conn_capab_port = port;
3179
3180         proto[cred->num_req_conn_capab] = atoi(value);
3181
3182         pos = os_strchr(value, ':');
3183         if (pos == NULL) {
3184                 port[cred->num_req_conn_capab] = NULL;
3185                 cred->num_req_conn_capab++;
3186                 return 0;
3187         }
3188         pos++;
3189
3190         ports = NULL;
3191         num_ports = 0;
3192
3193         while (*pos) {
3194                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3195                 if (nports == NULL) {
3196                         os_free(ports);
3197                         return -1;
3198                 }
3199                 ports = nports;
3200                 ports[num_ports++] = atoi(pos);
3201
3202                 pos = os_strchr(pos, ',');
3203                 if (pos == NULL)
3204                         break;
3205                 pos++;
3206         }
3207
3208         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3209         if (nports == NULL) {
3210                 os_free(ports);
3211                 return -1;
3212         }
3213         ports = nports;
3214         ports[num_ports] = -1;
3215
3216         port[cred->num_req_conn_capab] = ports;
3217         cred->num_req_conn_capab++;
3218         return 0;
3219 }
3220
3221
3222 static int wpa_config_set_cred_roaming_consortiums(struct wpa_cred *cred,
3223                                                    const char *value)
3224 {
3225         u8 roaming_consortiums[MAX_ROAMING_CONS][MAX_ROAMING_CONS_OI_LEN];
3226         size_t roaming_consortiums_len[MAX_ROAMING_CONS];
3227         unsigned int num_roaming_consortiums = 0;
3228         const char *pos, *end;
3229         size_t len;
3230
3231         os_memset(roaming_consortiums, 0, sizeof(roaming_consortiums));
3232         os_memset(roaming_consortiums_len, 0, sizeof(roaming_consortiums_len));
3233
3234         for (pos = value;;) {
3235                 end = os_strchr(pos, ',');
3236                 len = end ? (size_t) (end - pos) : os_strlen(pos);
3237                 if (!end && len == 0)
3238                         break;
3239                 if (len == 0 || (len & 1) != 0 ||
3240                     len / 2 > MAX_ROAMING_CONS_OI_LEN ||
3241                     hexstr2bin(pos,
3242                                roaming_consortiums[num_roaming_consortiums],
3243                                len / 2) < 0) {
3244                         wpa_printf(MSG_INFO,
3245                                    "Invalid roaming_consortiums entry: %s",
3246                                    pos);
3247                         return -1;
3248                 }
3249                 roaming_consortiums_len[num_roaming_consortiums] = len / 2;
3250                 num_roaming_consortiums++;
3251
3252                 if (!end)
3253                         break;
3254
3255                 if (num_roaming_consortiums >= MAX_ROAMING_CONS) {
3256                         wpa_printf(MSG_INFO,
3257                                    "Too many roaming_consortiums OIs");
3258                         return -1;
3259                 }
3260
3261                 pos = end + 1;
3262         }
3263
3264         os_memcpy(cred->roaming_consortiums, roaming_consortiums,
3265                   sizeof(roaming_consortiums));
3266         os_memcpy(cred->roaming_consortiums_len, roaming_consortiums_len,
3267                   sizeof(roaming_consortiums_len));
3268         cred->num_roaming_consortiums = num_roaming_consortiums;
3269
3270         return 0;
3271 }
3272
3273
3274 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
3275                         const char *value, int line)
3276 {
3277         char *val;
3278         size_t len;
3279         int res;
3280
3281         if (os_strcmp(var, "temporary") == 0) {
3282                 cred->temporary = atoi(value);
3283                 return 0;
3284         }
3285
3286         if (os_strcmp(var, "priority") == 0) {
3287                 cred->priority = atoi(value);
3288                 return 0;
3289         }
3290
3291         if (os_strcmp(var, "sp_priority") == 0) {
3292                 int prio = atoi(value);
3293                 if (prio < 0 || prio > 255)
3294                         return -1;
3295                 cred->sp_priority = prio;
3296                 return 0;
3297         }
3298
3299         if (os_strcmp(var, "pcsc") == 0) {
3300                 cred->pcsc = atoi(value);
3301                 return 0;
3302         }
3303
3304         if (os_strcmp(var, "eap") == 0) {
3305                 struct eap_method_type method;
3306                 method.method = eap_peer_get_type(value, &method.vendor);
3307                 if (method.vendor == EAP_VENDOR_IETF &&
3308                     method.method == EAP_TYPE_NONE) {
3309                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
3310                                    "for a credential", line, value);
3311                         return -1;
3312                 }
3313                 os_free(cred->eap_method);
3314                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
3315                 if (cred->eap_method == NULL)
3316                         return -1;
3317                 os_memcpy(cred->eap_method, &method, sizeof(method));
3318                 return 0;
3319         }
3320
3321         if (os_strcmp(var, "password") == 0 &&
3322             os_strncmp(value, "ext:", 4) == 0) {
3323                 if (has_newline(value))
3324                         return -1;
3325                 str_clear_free(cred->password);
3326                 cred->password = os_strdup(value);
3327                 cred->ext_password = 1;
3328                 return 0;
3329         }
3330
3331         if (os_strcmp(var, "update_identifier") == 0) {
3332                 cred->update_identifier = atoi(value);
3333                 return 0;
3334         }
3335
3336         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
3337                 cred->min_dl_bandwidth_home = atoi(value);
3338                 return 0;
3339         }
3340
3341         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
3342                 cred->min_ul_bandwidth_home = atoi(value);
3343                 return 0;
3344         }
3345
3346         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
3347                 cred->min_dl_bandwidth_roaming = atoi(value);
3348                 return 0;
3349         }
3350
3351         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
3352                 cred->min_ul_bandwidth_roaming = atoi(value);
3353                 return 0;
3354         }
3355
3356         if (os_strcmp(var, "max_bss_load") == 0) {
3357                 cred->max_bss_load = atoi(value);
3358                 return 0;
3359         }
3360
3361         if (os_strcmp(var, "req_conn_capab") == 0)
3362                 return wpa_config_set_cred_req_conn_capab(cred, value);
3363
3364         if (os_strcmp(var, "ocsp") == 0) {
3365                 cred->ocsp = atoi(value);
3366                 return 0;
3367         }
3368
3369         if (os_strcmp(var, "sim_num") == 0) {
3370                 cred->sim_num = atoi(value);
3371                 return 0;
3372         }
3373
3374         val = wpa_config_parse_string(value, &len);
3375         if (val == NULL ||
3376             (os_strcmp(var, "excluded_ssid") != 0 &&
3377              os_strcmp(var, "roaming_consortium") != 0 &&
3378              os_strcmp(var, "required_roaming_consortium") != 0 &&
3379              has_newline(val))) {
3380                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
3381                            "value '%s'.", line, var, value);
3382                 os_free(val);
3383                 return -1;
3384         }
3385
3386         if (os_strcmp(var, "realm") == 0) {
3387                 os_free(cred->realm);
3388                 cred->realm = val;
3389                 return 0;
3390         }
3391
3392         if (os_strcmp(var, "username") == 0) {
3393                 str_clear_free(cred->username);
3394                 cred->username = val;
3395                 return 0;
3396         }
3397
3398         if (os_strcmp(var, "password") == 0) {
3399                 str_clear_free(cred->password);
3400                 cred->password = val;
3401                 cred->ext_password = 0;
3402                 return 0;
3403         }
3404
3405         if (os_strcmp(var, "ca_cert") == 0) {
3406                 os_free(cred->ca_cert);
3407                 cred->ca_cert = val;
3408                 return 0;
3409         }
3410
3411         if (os_strcmp(var, "client_cert") == 0) {
3412                 os_free(cred->client_cert);
3413                 cred->client_cert = val;
3414                 return 0;
3415         }
3416
3417         if (os_strcmp(var, "private_key") == 0) {
3418                 os_free(cred->private_key);
3419                 cred->private_key = val;
3420                 return 0;
3421         }
3422
3423         if (os_strcmp(var, "private_key_passwd") == 0) {
3424                 str_clear_free(cred->private_key_passwd);
3425                 cred->private_key_passwd = val;
3426                 return 0;
3427         }
3428
3429         if (os_strcmp(var, "imsi") == 0) {
3430                 os_free(cred->imsi);
3431                 cred->imsi = val;
3432                 return 0;
3433         }
3434
3435         if (os_strcmp(var, "milenage") == 0) {
3436                 str_clear_free(cred->milenage);
3437                 cred->milenage = val;
3438                 return 0;
3439         }
3440
3441         if (os_strcmp(var, "domain_suffix_match") == 0) {
3442                 os_free(cred->domain_suffix_match);
3443                 cred->domain_suffix_match = val;
3444                 return 0;
3445         }
3446
3447         if (os_strcmp(var, "domain") == 0) {
3448                 char **new_domain;
3449                 new_domain = os_realloc_array(cred->domain,
3450                                               cred->num_domain + 1,
3451                                               sizeof(char *));
3452                 if (new_domain == NULL) {
3453                         os_free(val);
3454                         return -1;
3455                 }
3456                 new_domain[cred->num_domain++] = val;
3457                 cred->domain = new_domain;
3458                 return 0;
3459         }
3460
3461         if (os_strcmp(var, "phase1") == 0) {
3462                 os_free(cred->phase1);
3463                 cred->phase1 = val;
3464                 return 0;
3465         }
3466
3467         if (os_strcmp(var, "phase2") == 0) {
3468                 os_free(cred->phase2);
3469                 cred->phase2 = val;
3470                 return 0;
3471         }
3472
3473         if (os_strcmp(var, "roaming_consortium") == 0) {
3474                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
3475                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3476                                    "roaming_consortium length %d (3..15 "
3477                                    "expected)", line, (int) len);
3478                         os_free(val);
3479                         return -1;
3480                 }
3481                 os_memcpy(cred->roaming_consortium, val, len);
3482                 cred->roaming_consortium_len = len;
3483                 os_free(val);
3484                 return 0;
3485         }
3486
3487         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3488                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
3489                 {
3490                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3491                                    "required_roaming_consortium length %d "
3492                                    "(3..15 expected)", line, (int) len);
3493                         os_free(val);
3494                         return -1;
3495                 }
3496                 os_memcpy(cred->required_roaming_consortium, val, len);
3497                 cred->required_roaming_consortium_len = len;
3498                 os_free(val);
3499                 return 0;
3500         }
3501
3502         if (os_strcmp(var, "roaming_consortiums") == 0) {
3503                 res = wpa_config_set_cred_roaming_consortiums(cred, val);
3504                 if (res < 0)
3505                         wpa_printf(MSG_ERROR,
3506                                    "Line %d: invalid roaming_consortiums",
3507                                    line);
3508                 os_free(val);
3509                 return res;
3510         }
3511
3512         if (os_strcmp(var, "excluded_ssid") == 0) {
3513                 struct excluded_ssid *e;
3514
3515                 if (len > SSID_MAX_LEN) {
3516                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3517                                    "excluded_ssid length %d", line, (int) len);
3518                         os_free(val);
3519                         return -1;
3520                 }
3521
3522                 e = os_realloc_array(cred->excluded_ssid,
3523                                      cred->num_excluded_ssid + 1,
3524                                      sizeof(struct excluded_ssid));
3525                 if (e == NULL) {
3526                         os_free(val);
3527                         return -1;
3528                 }
3529                 cred->excluded_ssid = e;
3530
3531                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
3532                 os_memcpy(e->ssid, val, len);
3533                 e->ssid_len = len;
3534
3535                 os_free(val);
3536
3537                 return 0;
3538         }
3539
3540         if (os_strcmp(var, "roaming_partner") == 0) {
3541                 struct roaming_partner *p;
3542                 char *pos;
3543
3544                 p = os_realloc_array(cred->roaming_partner,
3545                                      cred->num_roaming_partner + 1,
3546                                      sizeof(struct roaming_partner));
3547                 if (p == NULL) {
3548                         os_free(val);
3549                         return -1;
3550                 }
3551                 cred->roaming_partner = p;
3552
3553                 p = &cred->roaming_partner[cred->num_roaming_partner];
3554
3555                 pos = os_strchr(val, ',');
3556                 if (pos == NULL) {
3557                         os_free(val);
3558                         return -1;
3559                 }
3560                 *pos++ = '\0';
3561                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3562                         os_free(val);
3563                         return -1;
3564                 }
3565                 os_memcpy(p->fqdn, val, pos - val);
3566
3567                 p->exact_match = atoi(pos);
3568
3569                 pos = os_strchr(pos, ',');
3570                 if (pos == NULL) {
3571                         os_free(val);
3572                         return -1;
3573                 }
3574                 *pos++ = '\0';
3575
3576                 p->priority = atoi(pos);
3577
3578                 pos = os_strchr(pos, ',');
3579                 if (pos == NULL) {
3580                         os_free(val);
3581                         return -1;
3582                 }
3583                 *pos++ = '\0';
3584
3585                 if (os_strlen(pos) >= sizeof(p->country)) {
3586                         os_free(val);
3587                         return -1;
3588                 }
3589                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3590
3591                 cred->num_roaming_partner++;
3592                 os_free(val);
3593
3594                 return 0;
3595         }
3596
3597         if (os_strcmp(var, "provisioning_sp") == 0) {
3598                 os_free(cred->provisioning_sp);
3599                 cred->provisioning_sp = val;
3600                 return 0;
3601         }
3602
3603         if (line) {
3604                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3605                            line, var);
3606         }
3607
3608         os_free(val);
3609
3610         return -1;
3611 }
3612
3613
3614 static char * alloc_int_str(int val)
3615 {
3616         const unsigned int bufsize = 20;
3617         char *buf;
3618         int res;
3619
3620         buf = os_malloc(bufsize);
3621         if (buf == NULL)
3622                 return NULL;
3623         res = os_snprintf(buf, bufsize, "%d", val);
3624         if (os_snprintf_error(bufsize, res)) {
3625                 os_free(buf);
3626                 buf = NULL;
3627         }
3628         return buf;
3629 }
3630
3631
3632 static char * alloc_strdup(const char *str)
3633 {
3634         if (str == NULL)
3635                 return NULL;
3636         return os_strdup(str);
3637 }
3638
3639
3640 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3641 {
3642         if (os_strcmp(var, "temporary") == 0)
3643                 return alloc_int_str(cred->temporary);
3644
3645         if (os_strcmp(var, "priority") == 0)
3646                 return alloc_int_str(cred->priority);
3647
3648         if (os_strcmp(var, "sp_priority") == 0)
3649                 return alloc_int_str(cred->sp_priority);
3650
3651         if (os_strcmp(var, "pcsc") == 0)
3652                 return alloc_int_str(cred->pcsc);
3653
3654         if (os_strcmp(var, "eap") == 0) {
3655                 if (!cred->eap_method)
3656                         return NULL;
3657                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3658                                                  cred->eap_method[0].method));
3659         }
3660
3661         if (os_strcmp(var, "update_identifier") == 0)
3662                 return alloc_int_str(cred->update_identifier);
3663
3664         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3665                 return alloc_int_str(cred->min_dl_bandwidth_home);
3666
3667         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3668                 return alloc_int_str(cred->min_ul_bandwidth_home);
3669
3670         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3671                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3672
3673         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3674                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3675
3676         if (os_strcmp(var, "max_bss_load") == 0)
3677                 return alloc_int_str(cred->max_bss_load);
3678
3679         if (os_strcmp(var, "req_conn_capab") == 0) {
3680                 unsigned int i;
3681                 char *buf, *end, *pos;
3682                 int ret;
3683
3684                 if (!cred->num_req_conn_capab)
3685                         return NULL;
3686
3687                 buf = os_malloc(4000);
3688                 if (buf == NULL)
3689                         return NULL;
3690                 pos = buf;
3691                 end = pos + 4000;
3692                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3693                         int *ports;
3694
3695                         ret = os_snprintf(pos, end - pos, "%s%u",
3696                                           i > 0 ? "\n" : "",
3697                                           cred->req_conn_capab_proto[i]);
3698                         if (os_snprintf_error(end - pos, ret))
3699                                 return buf;
3700                         pos += ret;
3701
3702                         ports = cred->req_conn_capab_port[i];
3703                         if (ports) {
3704                                 int j;
3705                                 for (j = 0; ports[j] != -1; j++) {
3706                                         ret = os_snprintf(pos, end - pos,
3707                                                           "%s%d",
3708                                                           j > 0 ? "," : ":",
3709                                                           ports[j]);
3710                                         if (os_snprintf_error(end - pos, ret))
3711                                                 return buf;
3712                                         pos += ret;
3713                                 }
3714                         }
3715                 }
3716
3717                 return buf;
3718         }
3719
3720         if (os_strcmp(var, "ocsp") == 0)
3721                 return alloc_int_str(cred->ocsp);
3722
3723         if (os_strcmp(var, "realm") == 0)
3724                 return alloc_strdup(cred->realm);
3725
3726         if (os_strcmp(var, "username") == 0)
3727                 return alloc_strdup(cred->username);
3728
3729         if (os_strcmp(var, "password") == 0) {
3730                 if (!cred->password)
3731                         return NULL;
3732                 return alloc_strdup("*");
3733         }
3734
3735         if (os_strcmp(var, "ca_cert") == 0)
3736                 return alloc_strdup(cred->ca_cert);
3737
3738         if (os_strcmp(var, "client_cert") == 0)
3739                 return alloc_strdup(cred->client_cert);
3740
3741         if (os_strcmp(var, "private_key") == 0)
3742                 return alloc_strdup(cred->private_key);
3743
3744         if (os_strcmp(var, "private_key_passwd") == 0) {
3745                 if (!cred->private_key_passwd)
3746                         return NULL;
3747                 return alloc_strdup("*");
3748         }
3749
3750         if (os_strcmp(var, "imsi") == 0)
3751                 return alloc_strdup(cred->imsi);
3752
3753         if (os_strcmp(var, "milenage") == 0) {
3754                 if (!(cred->milenage))
3755                         return NULL;
3756                 return alloc_strdup("*");
3757         }
3758
3759         if (os_strcmp(var, "domain_suffix_match") == 0)
3760                 return alloc_strdup(cred->domain_suffix_match);
3761
3762         if (os_strcmp(var, "domain") == 0) {
3763                 unsigned int i;
3764                 char *buf, *end, *pos;
3765                 int ret;
3766
3767                 if (!cred->num_domain)
3768                         return NULL;
3769
3770                 buf = os_malloc(4000);
3771                 if (buf == NULL)
3772                         return NULL;
3773                 pos = buf;
3774                 end = pos + 4000;
3775
3776                 for (i = 0; i < cred->num_domain; i++) {
3777                         ret = os_snprintf(pos, end - pos, "%s%s",
3778                                           i > 0 ? "\n" : "", cred->domain[i]);
3779                         if (os_snprintf_error(end - pos, ret))
3780                                 return buf;
3781                         pos += ret;
3782                 }
3783
3784                 return buf;
3785         }
3786
3787         if (os_strcmp(var, "phase1") == 0)
3788                 return alloc_strdup(cred->phase1);
3789
3790         if (os_strcmp(var, "phase2") == 0)
3791                 return alloc_strdup(cred->phase2);
3792
3793         if (os_strcmp(var, "roaming_consortium") == 0) {
3794                 size_t buflen;
3795                 char *buf;
3796
3797                 if (!cred->roaming_consortium_len)
3798                         return NULL;
3799                 buflen = cred->roaming_consortium_len * 2 + 1;
3800                 buf = os_malloc(buflen);
3801                 if (buf == NULL)
3802                         return NULL;
3803                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3804                                  cred->roaming_consortium_len);
3805                 return buf;
3806         }
3807
3808         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3809                 size_t buflen;
3810                 char *buf;
3811
3812                 if (!cred->required_roaming_consortium_len)
3813                         return NULL;
3814                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3815                 buf = os_malloc(buflen);
3816                 if (buf == NULL)
3817                         return NULL;
3818                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3819                                  cred->required_roaming_consortium_len);
3820                 return buf;
3821         }
3822
3823         if (os_strcmp(var, "roaming_consortiums") == 0) {
3824                 size_t buflen;
3825                 char *buf, *pos;
3826                 size_t i;
3827
3828                 if (!cred->num_roaming_consortiums)
3829                         return NULL;
3830                 buflen = cred->num_roaming_consortiums *
3831                         MAX_ROAMING_CONS_OI_LEN * 2 + 1;
3832                 buf = os_malloc(buflen);
3833                 if (!buf)
3834                         return NULL;
3835                 pos = buf;
3836                 for (i = 0; i < cred->num_roaming_consortiums; i++) {
3837                         if (i > 0)
3838                                 *pos++ = ',';
3839                         pos += wpa_snprintf_hex(
3840                                 pos, buf + buflen - pos,
3841                                 cred->roaming_consortiums[i],
3842                                 cred->roaming_consortiums_len[i]);
3843                 }
3844                 *pos = '\0';
3845                 return buf;
3846         }
3847
3848         if (os_strcmp(var, "excluded_ssid") == 0) {
3849                 unsigned int i;
3850                 char *buf, *end, *pos;
3851
3852                 if (!cred->num_excluded_ssid)
3853                         return NULL;
3854
3855                 buf = os_malloc(4000);
3856                 if (buf == NULL)
3857                         return NULL;
3858                 pos = buf;
3859                 end = pos + 4000;
3860
3861                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3862                         struct excluded_ssid *e;
3863                         int ret;
3864
3865                         e = &cred->excluded_ssid[i];
3866                         ret = os_snprintf(pos, end - pos, "%s%s",
3867                                           i > 0 ? "\n" : "",
3868                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3869                         if (os_snprintf_error(end - pos, ret))
3870                                 return buf;
3871                         pos += ret;
3872                 }
3873
3874                 return buf;
3875         }
3876
3877         if (os_strcmp(var, "roaming_partner") == 0) {
3878                 unsigned int i;
3879                 char *buf, *end, *pos;
3880
3881                 if (!cred->num_roaming_partner)
3882                         return NULL;
3883
3884                 buf = os_malloc(4000);
3885                 if (buf == NULL)
3886                         return NULL;
3887                 pos = buf;
3888                 end = pos + 4000;
3889
3890                 for (i = 0; i < cred->num_roaming_partner; i++) {
3891                         struct roaming_partner *p;
3892                         int ret;
3893
3894                         p = &cred->roaming_partner[i];
3895                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3896                                           i > 0 ? "\n" : "",
3897                                           p->fqdn, p->exact_match, p->priority,
3898                                           p->country);
3899                         if (os_snprintf_error(end - pos, ret))
3900                                 return buf;
3901                         pos += ret;
3902                 }
3903
3904                 return buf;
3905         }
3906
3907         if (os_strcmp(var, "provisioning_sp") == 0)
3908                 return alloc_strdup(cred->provisioning_sp);
3909
3910         return NULL;
3911 }
3912
3913
3914 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3915 {
3916         struct wpa_cred *cred;
3917
3918         cred = config->cred;
3919         while (cred) {
3920                 if (id == cred->id)
3921                         break;
3922                 cred = cred->next;
3923         }
3924
3925         return cred;
3926 }
3927
3928
3929 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3930 {
3931         int id;
3932         struct wpa_cred *cred, *last = NULL;
3933
3934         id = -1;
3935         cred = config->cred;
3936         while (cred) {
3937                 if (cred->id > id)
3938                         id = cred->id;
3939                 last = cred;
3940                 cred = cred->next;
3941         }
3942         id++;
3943
3944         cred = os_zalloc(sizeof(*cred));
3945         if (cred == NULL)
3946                 return NULL;
3947         cred->id = id;
3948         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3949         if (last)
3950                 last->next = cred;
3951         else
3952                 config->cred = cred;
3953
3954         return cred;
3955 }
3956
3957
3958 int wpa_config_remove_cred(struct wpa_config *config, int id)
3959 {
3960         struct wpa_cred *cred, *prev = NULL;
3961
3962         cred = config->cred;
3963         while (cred) {
3964                 if (id == cred->id)
3965                         break;
3966                 prev = cred;
3967                 cred = cred->next;
3968         }
3969
3970         if (cred == NULL)
3971                 return -1;
3972
3973         if (prev)
3974                 prev->next = cred->next;
3975         else
3976                 config->cred = cred->next;
3977
3978         wpa_config_free_cred(cred);
3979         return 0;
3980 }
3981
3982
3983 #ifndef CONFIG_NO_CONFIG_BLOBS
3984 /**
3985  * wpa_config_get_blob - Get a named configuration blob
3986  * @config: Configuration data from wpa_config_read()
3987  * @name: Name of the blob
3988  * Returns: Pointer to blob data or %NULL if not found
3989  */
3990 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3991                                                    const char *name)
3992 {
3993         struct wpa_config_blob *blob = config->blobs;
3994
3995         while (blob) {
3996                 if (os_strcmp(blob->name, name) == 0)
3997                         return blob;
3998                 blob = blob->next;
3999         }
4000         return NULL;
4001 }
4002
4003
4004 /**
4005  * wpa_config_set_blob - Set or add a named configuration blob
4006  * @config: Configuration data from wpa_config_read()
4007  * @blob: New value for the blob
4008  *
4009  * Adds a new configuration blob or replaces the current value of an existing
4010  * blob.
4011  */
4012 void wpa_config_set_blob(struct wpa_config *config,
4013                          struct wpa_config_blob *blob)
4014 {
4015         wpa_config_remove_blob(config, blob->name);
4016         blob->next = config->blobs;
4017         config->blobs = blob;
4018 }
4019
4020
4021 /**
4022  * wpa_config_free_blob - Free blob data
4023  * @blob: Pointer to blob to be freed
4024  */
4025 void wpa_config_free_blob(struct wpa_config_blob *blob)
4026 {
4027         if (blob) {
4028                 os_free(blob->name);
4029                 bin_clear_free(blob->data, blob->len);
4030                 os_free(blob);
4031         }
4032 }
4033
4034
4035 /**
4036  * wpa_config_remove_blob - Remove a named configuration blob
4037  * @config: Configuration data from wpa_config_read()
4038  * @name: Name of the blob to remove
4039  * Returns: 0 if blob was removed or -1 if blob was not found
4040  */
4041 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
4042 {
4043         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
4044
4045         while (pos) {
4046                 if (os_strcmp(pos->name, name) == 0) {
4047                         if (prev)
4048                                 prev->next = pos->next;
4049                         else
4050                                 config->blobs = pos->next;
4051                         wpa_config_free_blob(pos);
4052                         return 0;
4053                 }
4054                 prev = pos;
4055                 pos = pos->next;
4056         }
4057
4058         return -1;
4059 }
4060 #endif /* CONFIG_NO_CONFIG_BLOBS */
4061
4062
4063 /**
4064  * wpa_config_alloc_empty - Allocate an empty configuration
4065  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
4066  * socket
4067  * @driver_param: Driver parameters
4068  * Returns: Pointer to allocated configuration data or %NULL on failure
4069  */
4070 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
4071                                            const char *driver_param)
4072 {
4073         struct wpa_config *config;
4074         const int aCWmin = 4, aCWmax = 10;
4075         const struct hostapd_wmm_ac_params ac_bk =
4076                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
4077         const struct hostapd_wmm_ac_params ac_be =
4078                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
4079         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
4080                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
4081         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
4082                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
4083
4084         config = os_zalloc(sizeof(*config));
4085         if (config == NULL)
4086                 return NULL;
4087         config->eapol_version = DEFAULT_EAPOL_VERSION;
4088         config->ap_scan = DEFAULT_AP_SCAN;
4089         config->user_mpm = DEFAULT_USER_MPM;
4090         config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
4091         config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
4092         config->dot11RSNASAERetransPeriod =
4093                 DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD;
4094         config->fast_reauth = DEFAULT_FAST_REAUTH;
4095         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
4096         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
4097         config->p2p_go_freq_change_policy = DEFAULT_P2P_GO_FREQ_MOVE;
4098         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
4099         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
4100         config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
4101         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
4102         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
4103         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
4104         config->max_num_sta = DEFAULT_MAX_NUM_STA;
4105         config->ap_isolate = DEFAULT_AP_ISOLATE;
4106         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
4107         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
4108         config->wmm_ac_params[0] = ac_be;
4109         config->wmm_ac_params[1] = ac_bk;
4110         config->wmm_ac_params[2] = ac_vi;
4111         config->wmm_ac_params[3] = ac_vo;
4112         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
4113         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4114         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
4115         config->cert_in_cb = DEFAULT_CERT_IN_CB;
4116         config->wpa_rsc_relaxation = DEFAULT_WPA_RSC_RELAXATION;
4117
4118 #ifdef CONFIG_MBO
4119         config->mbo_cell_capa = DEFAULT_MBO_CELL_CAPA;
4120         config->disassoc_imminent_rssi_threshold =
4121                 DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD;
4122         config->oce = DEFAULT_OCE_SUPPORT;
4123 #endif /* CONFIG_MBO */
4124
4125         if (ctrl_interface)
4126                 config->ctrl_interface = os_strdup(ctrl_interface);
4127         if (driver_param)
4128                 config->driver_param = os_strdup(driver_param);
4129         config->gas_rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4130
4131         return config;
4132 }
4133
4134
4135 #ifndef CONFIG_NO_STDOUT_DEBUG
4136 /**
4137  * wpa_config_debug_dump_networks - Debug dump of configured networks
4138  * @config: Configuration data from wpa_config_read()
4139  */
4140 void wpa_config_debug_dump_networks(struct wpa_config *config)
4141 {
4142         int prio;
4143         struct wpa_ssid *ssid;
4144
4145         for (prio = 0; prio < config->num_prio; prio++) {
4146                 ssid = config->pssid[prio];
4147                 wpa_printf(MSG_DEBUG, "Priority group %d",
4148                            ssid->priority);
4149                 while (ssid) {
4150                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
4151                                    ssid->id,
4152                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
4153                         ssid = ssid->pnext;
4154                 }
4155         }
4156 }
4157 #endif /* CONFIG_NO_STDOUT_DEBUG */
4158
4159
4160 struct global_parse_data {
4161         char *name;
4162         int (*parser)(const struct global_parse_data *data,
4163                       struct wpa_config *config, int line, const char *value);
4164         int (*get)(const char *name, struct wpa_config *config, long offset,
4165                    char *buf, size_t buflen, int pretty_print);
4166         void *param1, *param2, *param3;
4167         unsigned int changed_flag;
4168 };
4169
4170
4171 static int wpa_global_config_parse_int(const struct global_parse_data *data,
4172                                        struct wpa_config *config, int line,
4173                                        const char *pos)
4174 {
4175         int val, *dst;
4176         char *end;
4177
4178         dst = (int *) (((u8 *) config) + (long) data->param1);
4179         val = strtol(pos, &end, 0);
4180         if (*end) {
4181                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
4182                            line, pos);
4183                 return -1;
4184         }
4185         *dst = val;
4186
4187         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
4188
4189         if (data->param2 && *dst < (long) data->param2) {
4190                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
4191                            "min_value=%ld)", line, data->name, *dst,
4192                            (long) data->param2);
4193                 *dst = (long) data->param2;
4194                 return -1;
4195         }
4196
4197         if (data->param3 && *dst > (long) data->param3) {
4198                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
4199                            "max_value=%ld)", line, data->name, *dst,
4200                            (long) data->param3);
4201                 *dst = (long) data->param3;
4202                 return -1;
4203         }
4204
4205         return 0;
4206 }
4207
4208
4209 static int wpa_global_config_parse_str(const struct global_parse_data *data,
4210                                        struct wpa_config *config, int line,
4211                                        const char *pos)
4212 {
4213         size_t len;
4214         char **dst, *tmp;
4215
4216         len = os_strlen(pos);
4217         if (data->param2 && len < (size_t) data->param2) {
4218                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
4219                            "min_len=%ld)", line, data->name,
4220                            (unsigned long) len, (long) data->param2);
4221                 return -1;
4222         }
4223
4224         if (data->param3 && len > (size_t) data->param3) {
4225                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
4226                            "max_len=%ld)", line, data->name,
4227                            (unsigned long) len, (long) data->param3);
4228                 return -1;
4229         }
4230
4231         if (has_newline(pos)) {
4232                 wpa_printf(MSG_ERROR, "Line %d: invalid %s value with newline",
4233                            line, data->name);
4234                 return -1;
4235         }
4236
4237         tmp = os_strdup(pos);
4238         if (tmp == NULL)
4239                 return -1;
4240
4241         dst = (char **) (((u8 *) config) + (long) data->param1);
4242         os_free(*dst);
4243         *dst = tmp;
4244         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
4245
4246         return 0;
4247 }
4248
4249
4250 static int wpa_config_process_bgscan(const struct global_parse_data *data,
4251                                      struct wpa_config *config, int line,
4252                                      const char *pos)
4253 {
4254         size_t len;
4255         char *tmp;
4256         int res;
4257
4258         tmp = wpa_config_parse_string(pos, &len);
4259         if (tmp == NULL) {
4260                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
4261                            line, data->name);
4262                 return -1;
4263         }
4264
4265         res = wpa_global_config_parse_str(data, config, line, tmp);
4266         os_free(tmp);
4267         return res;
4268 }
4269
4270
4271 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
4272                                        struct wpa_config *config, int line,
4273                                        const char *pos)
4274 {
4275         struct wpabuf **dst, *tmp;
4276
4277         tmp = wpabuf_parse_bin(pos);
4278         if (!tmp)
4279                 return -1;
4280
4281         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
4282         wpabuf_free(*dst);
4283         *dst = tmp;
4284         wpa_printf(MSG_DEBUG, "%s", data->name);
4285
4286         return 0;
4287 }
4288
4289
4290 static int wpa_config_process_freq_list(const struct global_parse_data *data,
4291                                         struct wpa_config *config, int line,
4292                                         const char *value)
4293 {
4294         int *freqs;
4295
4296         freqs = wpa_config_parse_int_array(value);
4297         if (freqs == NULL)
4298                 return -1;
4299         if (freqs[0] == 0) {
4300                 os_free(freqs);
4301                 freqs = NULL;
4302         }
4303         os_free(config->freq_list);
4304         config->freq_list = freqs;
4305         return 0;
4306 }
4307
4308
4309 #ifdef CONFIG_P2P
4310 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
4311                                         struct wpa_config *config, int line,
4312                                         const char *pos)
4313 {
4314         u32 *dst;
4315         struct hostapd_ip_addr addr;
4316
4317         if (hostapd_parse_ip_addr(pos, &addr) < 0)
4318                 return -1;
4319         if (addr.af != AF_INET)
4320                 return -1;
4321
4322         dst = (u32 *) (((u8 *) config) + (long) data->param1);
4323         os_memcpy(dst, &addr.u.v4.s_addr, 4);
4324         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
4325                    WPA_GET_BE32((u8 *) dst));
4326
4327         return 0;
4328 }
4329 #endif /* CONFIG_P2P */
4330
4331
4332 static int wpa_config_process_country(const struct global_parse_data *data,
4333                                       struct wpa_config *config, int line,
4334                                       const char *pos)
4335 {
4336         if (!pos[0] || !pos[1]) {
4337                 wpa_printf(MSG_DEBUG, "Invalid country set");
4338                 return -1;
4339         }
4340         config->country[0] = pos[0];
4341         config->country[1] = pos[1];
4342         wpa_printf(MSG_DEBUG, "country='%c%c'",
4343                    config->country[0], config->country[1]);
4344         return 0;
4345 }
4346
4347
4348 static int wpa_config_process_load_dynamic_eap(
4349         const struct global_parse_data *data, struct wpa_config *config,
4350         int line, const char *so)
4351 {
4352         int ret;
4353         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
4354         ret = eap_peer_method_load(so);
4355         if (ret == -2) {
4356                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
4357                            "reloading.");
4358         } else if (ret) {
4359                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
4360                            "method '%s'.", line, so);
4361                 return -1;
4362         }
4363
4364         return 0;
4365 }
4366
4367
4368 #ifdef CONFIG_WPS
4369
4370 static int wpa_config_process_uuid(const struct global_parse_data *data,
4371                                    struct wpa_config *config, int line,
4372                                    const char *pos)
4373 {
4374         char buf[40];
4375         if (uuid_str2bin(pos, config->uuid)) {
4376                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
4377                 return -1;
4378         }
4379         uuid_bin2str(config->uuid, buf, sizeof(buf));
4380         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
4381         return 0;
4382 }
4383
4384
4385 static int wpa_config_process_device_type(
4386         const struct global_parse_data *data,
4387         struct wpa_config *config, int line, const char *pos)
4388 {
4389         return wps_dev_type_str2bin(pos, config->device_type);
4390 }
4391
4392
4393 static int wpa_config_process_os_version(const struct global_parse_data *data,
4394                                          struct wpa_config *config, int line,
4395                                          const char *pos)
4396 {
4397         if (hexstr2bin(pos, config->os_version, 4)) {
4398                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
4399                 return -1;
4400         }
4401         wpa_printf(MSG_DEBUG, "os_version=%08x",
4402                    WPA_GET_BE32(config->os_version));
4403         return 0;
4404 }
4405
4406
4407 static int wpa_config_process_wps_vendor_ext_m1(
4408         const struct global_parse_data *data,
4409         struct wpa_config *config, int line, const char *pos)
4410 {
4411         struct wpabuf *tmp;
4412         int len = os_strlen(pos) / 2;
4413         u8 *p;
4414
4415         if (!len) {
4416                 wpa_printf(MSG_ERROR, "Line %d: "
4417                            "invalid wps_vendor_ext_m1", line);
4418                 return -1;
4419         }
4420
4421         tmp = wpabuf_alloc(len);
4422         if (tmp) {
4423                 p = wpabuf_put(tmp, len);
4424
4425                 if (hexstr2bin(pos, p, len)) {
4426                         wpa_printf(MSG_ERROR, "Line %d: "
4427                                    "invalid wps_vendor_ext_m1", line);
4428                         wpabuf_free(tmp);
4429                         return -1;
4430                 }
4431
4432                 wpabuf_free(config->wps_vendor_ext_m1);
4433                 config->wps_vendor_ext_m1 = tmp;
4434         } else {
4435                 wpa_printf(MSG_ERROR, "Can not allocate "
4436                            "memory for wps_vendor_ext_m1");
4437                 return -1;
4438         }
4439
4440         return 0;
4441 }
4442
4443 #endif /* CONFIG_WPS */
4444
4445 #ifdef CONFIG_P2P
4446 static int wpa_config_process_sec_device_type(
4447         const struct global_parse_data *data,
4448         struct wpa_config *config, int line, const char *pos)
4449 {
4450         int idx;
4451
4452         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
4453                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
4454                            "items", line);
4455                 return -1;
4456         }
4457
4458         idx = config->num_sec_device_types;
4459
4460         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
4461                 return -1;
4462
4463         config->num_sec_device_types++;
4464         return 0;
4465 }
4466
4467
4468 static int wpa_config_process_p2p_pref_chan(
4469         const struct global_parse_data *data,
4470         struct wpa_config *config, int line, const char *pos)
4471 {
4472         struct p2p_channel *pref = NULL, *n;
4473         unsigned int num = 0;
4474         const char *pos2;
4475         u8 op_class, chan;
4476
4477         /* format: class:chan,class:chan,... */
4478
4479         while (*pos) {
4480                 op_class = atoi(pos);
4481                 pos2 = os_strchr(pos, ':');
4482                 if (pos2 == NULL)
4483                         goto fail;
4484                 pos2++;
4485                 chan = atoi(pos2);
4486
4487                 n = os_realloc_array(pref, num + 1,
4488                                      sizeof(struct p2p_channel));
4489                 if (n == NULL)
4490                         goto fail;
4491                 pref = n;
4492                 pref[num].op_class = op_class;
4493                 pref[num].chan = chan;
4494                 num++;
4495
4496                 pos = os_strchr(pos2, ',');
4497                 if (pos == NULL)
4498                         break;
4499                 pos++;
4500         }
4501
4502         os_free(config->p2p_pref_chan);
4503         config->p2p_pref_chan = pref;
4504         config->num_p2p_pref_chan = num;
4505         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
4506                     (u8 *) config->p2p_pref_chan,
4507                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
4508
4509         return 0;
4510
4511 fail:
4512         os_free(pref);
4513         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
4514         return -1;
4515 }
4516
4517
4518 static int wpa_config_process_p2p_no_go_freq(
4519         const struct global_parse_data *data,
4520         struct wpa_config *config, int line, const char *pos)
4521 {
4522         int ret;
4523
4524         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
4525         if (ret < 0) {
4526                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
4527                 return -1;
4528         }
4529
4530         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
4531                    config->p2p_no_go_freq.num);
4532
4533         return 0;
4534 }
4535
4536
4537 static int wpa_config_process_p2p_device_persistent_mac_addr(
4538         const struct global_parse_data *data,
4539         struct wpa_config *config, int line, const char *pos)
4540 {
4541         if (hwaddr_aton2(pos, config->p2p_device_persistent_mac_addr) < 0) {
4542                 wpa_printf(MSG_ERROR,
4543                            "Line %d: Invalid p2p_device_persistent_mac_addr '%s'",
4544                            line, pos);
4545                 return -1;
4546         }
4547
4548         return 0;
4549 }
4550
4551 #endif /* CONFIG_P2P */
4552
4553
4554 static int wpa_config_process_hessid(
4555         const struct global_parse_data *data,
4556         struct wpa_config *config, int line, const char *pos)
4557 {
4558         if (hwaddr_aton2(pos, config->hessid) < 0) {
4559                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
4560                            line, pos);
4561                 return -1;
4562         }
4563
4564         return 0;
4565 }
4566
4567
4568 static int wpa_config_process_sae_groups(
4569         const struct global_parse_data *data,
4570         struct wpa_config *config, int line, const char *pos)
4571 {
4572         int *groups = wpa_config_parse_int_array(pos);
4573         if (groups == NULL) {
4574                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
4575                            line, pos);
4576                 return -1;
4577         }
4578
4579         os_free(config->sae_groups);
4580         config->sae_groups = groups;
4581
4582         return 0;
4583 }
4584
4585
4586 static int wpa_config_process_ap_vendor_elements(
4587         const struct global_parse_data *data,
4588         struct wpa_config *config, int line, const char *pos)
4589 {
4590         struct wpabuf *tmp;
4591         int len = os_strlen(pos) / 2;
4592         u8 *p;
4593
4594         if (!len) {
4595                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
4596                            line);
4597                 return -1;
4598         }
4599
4600         tmp = wpabuf_alloc(len);
4601         if (tmp) {
4602                 p = wpabuf_put(tmp, len);
4603
4604                 if (hexstr2bin(pos, p, len)) {
4605                         wpa_printf(MSG_ERROR, "Line %d: invalid "
4606                                    "ap_vendor_elements", line);
4607                         wpabuf_free(tmp);
4608                         return -1;
4609                 }
4610
4611                 wpabuf_free(config->ap_vendor_elements);
4612                 config->ap_vendor_elements = tmp;
4613         } else {
4614                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4615                            "ap_vendor_elements");
4616                 return -1;
4617         }
4618
4619         return 0;
4620 }
4621
4622
4623 #ifdef CONFIG_CTRL_IFACE
4624 static int wpa_config_process_no_ctrl_interface(
4625         const struct global_parse_data *data,
4626         struct wpa_config *config, int line, const char *pos)
4627 {
4628         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4629         os_free(config->ctrl_interface);
4630         config->ctrl_interface = NULL;
4631         return 0;
4632 }
4633 #endif /* CONFIG_CTRL_IFACE */
4634
4635
4636 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4637                               long offset, char *buf, size_t buflen,
4638                               int pretty_print)
4639 {
4640         int *val = (int *) (((u8 *) config) + (long) offset);
4641
4642         if (pretty_print)
4643                 return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4644         return os_snprintf(buf, buflen, "%d", *val);
4645 }
4646
4647
4648 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4649                               long offset, char *buf, size_t buflen,
4650                               int pretty_print)
4651 {
4652         char **val = (char **) (((u8 *) config) + (long) offset);
4653         int res;
4654
4655         if (pretty_print)
4656                 res = os_snprintf(buf, buflen, "%s=%s\n", name,
4657                                   *val ? *val : "null");
4658         else if (!*val)
4659                 return -1;
4660         else
4661                 res = os_snprintf(buf, buflen, "%s", *val);
4662         if (os_snprintf_error(buflen, res))
4663                 res = -1;
4664
4665         return res;
4666 }
4667
4668
4669 #ifdef CONFIG_P2P
4670 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4671                                long offset, char *buf, size_t buflen,
4672                                int pretty_print)
4673 {
4674         void *val = ((u8 *) config) + (long) offset;
4675         int res;
4676         char addr[INET_ADDRSTRLEN];
4677
4678         if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4679                 return -1;
4680
4681         if (pretty_print)
4682                 res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4683         else
4684                 res = os_snprintf(buf, buflen, "%s", addr);
4685
4686         if (os_snprintf_error(buflen, res))
4687                 res = -1;
4688
4689         return res;
4690 }
4691 #endif /* CONFIG_P2P */
4692
4693
4694 #ifdef OFFSET
4695 #undef OFFSET
4696 #endif /* OFFSET */
4697 /* OFFSET: Get offset of a variable within the wpa_config structure */
4698 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4699
4700 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4701 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4702 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4703 #define INT(f) _INT(f), NULL, NULL
4704 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4705 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4706 #define STR(f) _STR(f), NULL, NULL
4707 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4708 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4709 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4,  \
4710         OFFSET(f), NULL, NULL
4711
4712 static const struct global_parse_data global_fields[] = {
4713 #ifdef CONFIG_CTRL_IFACE
4714         { STR(ctrl_interface), 0 },
4715         { FUNC_NO_VAR(no_ctrl_interface), 0 },
4716         { STR(ctrl_interface_group), 0 } /* deprecated */,
4717 #endif /* CONFIG_CTRL_IFACE */
4718 #ifdef CONFIG_MACSEC
4719         { INT_RANGE(eapol_version, 1, 3), 0 },
4720 #else /* CONFIG_MACSEC */
4721         { INT_RANGE(eapol_version, 1, 2), 0 },
4722 #endif /* CONFIG_MACSEC */
4723         { INT(ap_scan), 0 },
4724         { FUNC(bgscan), 0 },
4725 #ifdef CONFIG_MESH
4726         { INT(user_mpm), 0 },
4727         { INT_RANGE(max_peer_links, 0, 255), 0 },
4728         { INT(mesh_max_inactivity), 0 },
4729         { INT(dot11RSNASAERetransPeriod), 0 },
4730 #endif /* CONFIG_MESH */
4731         { INT(disable_scan_offload), 0 },
4732         { INT(fast_reauth), 0 },
4733         { STR(opensc_engine_path), 0 },
4734         { STR(pkcs11_engine_path), 0 },
4735         { STR(pkcs11_module_path), 0 },
4736         { STR(openssl_ciphers), 0 },
4737         { STR(pcsc_reader), 0 },
4738         { STR(pcsc_pin), 0 },
4739         { INT(external_sim), 0 },
4740         { STR(driver_param), 0 },
4741         { INT(dot11RSNAConfigPMKLifetime), 0 },
4742         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4743         { INT(dot11RSNAConfigSATimeout), 0 },
4744 #ifndef CONFIG_NO_CONFIG_WRITE
4745         { INT(update_config), 0 },
4746 #endif /* CONFIG_NO_CONFIG_WRITE */
4747         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4748 #ifdef CONFIG_WPS
4749         { FUNC(uuid), CFG_CHANGED_UUID },
4750         { INT_RANGE(auto_uuid, 0, 1), 0 },
4751         { STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4752           CFG_CHANGED_DEVICE_NAME },
4753         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4754         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4755         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4756         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4757         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4758         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4759         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4760         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4761         { INT_RANGE(wps_cred_add_sae, 0, 1), 0 },
4762         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4763 #endif /* CONFIG_WPS */
4764 #ifdef CONFIG_P2P
4765         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4766         { INT(p2p_listen_reg_class), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4767         { INT(p2p_listen_channel), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4768         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4769         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4770         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4771         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4772         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4773         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4774         { INT(p2p_group_idle), 0 },
4775         { INT_RANGE(p2p_go_freq_change_policy, 0, P2P_GO_FREQ_MOVE_MAX), 0 },
4776         { INT_RANGE(p2p_passphrase_len, 8, 63),
4777           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4778         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4779         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4780         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4781         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4782         { INT(p2p_go_ht40), 0 },
4783         { INT(p2p_go_vht), 0 },
4784         { INT(p2p_go_he), 0 },
4785         { INT(p2p_disabled), 0 },
4786         { INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4787         { INT(p2p_no_group_iface), 0 },
4788         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4789         { IPV4(ip_addr_go), 0 },
4790         { IPV4(ip_addr_mask), 0 },
4791         { IPV4(ip_addr_start), 0 },
4792         { IPV4(ip_addr_end), 0 },
4793         { INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4794         { INT(p2p_device_random_mac_addr), 0 },
4795         { FUNC(p2p_device_persistent_mac_addr), 0 },
4796         { INT(p2p_interface_random_mac_addr), 0 },
4797 #endif /* CONFIG_P2P */
4798         { FUNC(country), CFG_CHANGED_COUNTRY },
4799         { INT(bss_max_count), 0 },
4800         { INT(bss_expiration_age), 0 },
4801         { INT(bss_expiration_scan_count), 0 },
4802         { INT_RANGE(filter_ssids, 0, 1), 0 },
4803         { INT_RANGE(filter_rssi, -100, 0), 0 },
4804         { INT(max_num_sta), 0 },
4805         { INT_RANGE(ap_isolate, 0, 1), 0 },
4806         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4807 #ifdef CONFIG_HS20
4808         { INT_RANGE(hs20, 0, 1), 0 },
4809 #endif /* CONFIG_HS20 */
4810         { INT_RANGE(interworking, 0, 1), 0 },
4811         { FUNC(hessid), 0 },
4812         { INT_RANGE(access_network_type, 0, 15), 0 },
4813         { INT_RANGE(go_interworking, 0, 1), 0 },
4814         { INT_RANGE(go_access_network_type, 0, 15), 0 },
4815         { INT_RANGE(go_internet, 0, 1), 0 },
4816         { INT_RANGE(go_venue_group, 0, 255), 0 },
4817         { INT_RANGE(go_venue_type, 0, 255), 0 },
4818         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4819         { STR(autoscan), 0 },
4820         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4821           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4822         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4823         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4824         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4825         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4826         { INT(p2p_go_max_inactivity), 0 },
4827         { INT_RANGE(auto_interworking, 0, 1), 0 },
4828         { INT(okc), 0 },
4829         { INT(pmf), 0 },
4830         { FUNC(sae_groups), 0 },
4831         { INT(dtim_period), 0 },
4832         { INT(beacon_int), 0 },
4833         { FUNC(ap_vendor_elements), 0 },
4834         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4835         { FUNC(freq_list), 0 },
4836         { INT(scan_cur_freq), 0 },
4837         { INT(sched_scan_interval), 0 },
4838         { INT(sched_scan_start_delay), 0 },
4839         { INT(tdls_external_control), 0},
4840         { STR(osu_dir), 0 },
4841         { STR(wowlan_triggers), CFG_CHANGED_WOWLAN_TRIGGERS },
4842         { INT(p2p_search_delay), 0},
4843         { INT(mac_addr), 0 },
4844         { INT(rand_addr_lifetime), 0 },
4845         { INT(preassoc_mac_addr), 0 },
4846         { INT(key_mgmt_offload), 0},
4847         { INT(passive_scan), 0 },
4848         { INT(reassoc_same_bss_optim), 0 },
4849         { INT(wps_priority), 0},
4850 #ifdef CONFIG_FST
4851         { STR_RANGE(fst_group_id, 1, FST_MAX_GROUP_ID_LEN), 0 },
4852         { INT_RANGE(fst_priority, 1, FST_MAX_PRIO_VALUE), 0 },
4853         { INT_RANGE(fst_llt, 1, FST_MAX_LLT_MS), 0 },
4854 #endif /* CONFIG_FST */
4855         { INT_RANGE(cert_in_cb, 0, 1), 0 },
4856         { INT_RANGE(wpa_rsc_relaxation, 0, 1), 0 },
4857         { STR(sched_scan_plans), CFG_CHANGED_SCHED_SCAN_PLANS },
4858 #ifdef CONFIG_MBO
4859         { STR(non_pref_chan), 0 },
4860         { INT_RANGE(mbo_cell_capa, MBO_CELL_CAPA_AVAILABLE,
4861                     MBO_CELL_CAPA_NOT_SUPPORTED), 0 },
4862         { INT_RANGE(disassoc_imminent_rssi_threshold, -120, 0), 0 },
4863         { INT_RANGE(oce, 0, 3), 0 },
4864 #endif /* CONFIG_MBO */
4865         { INT(gas_address3), 0 },
4866         { INT_RANGE(ftm_responder, 0, 1), 0 },
4867         { INT_RANGE(ftm_initiator, 0, 1), 0 },
4868         { INT(gas_rand_addr_lifetime), 0 },
4869         { INT_RANGE(gas_rand_mac_addr, 0, 2), 0 },
4870         { INT_RANGE(dpp_config_processing, 0, 2), 0 },
4871         { INT_RANGE(coloc_intf_reporting, 0, 1), 0 },
4872 #ifdef CONFIG_WNM
4873         { INT_RANGE(disable_btm, 0, 1), CFG_CHANGED_DISABLE_BTM },
4874 #endif /* CONFIG_WNM */
4875 };
4876
4877 #undef FUNC
4878 #undef _INT
4879 #undef INT
4880 #undef INT_RANGE
4881 #undef _STR
4882 #undef STR
4883 #undef STR_RANGE
4884 #undef BIN
4885 #undef IPV4
4886 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4887
4888
4889 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4890 {
4891         int result = 0;
4892         size_t i;
4893
4894         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4895                 const struct global_parse_data *field = &global_fields[i];
4896                 int tmp;
4897
4898                 if (!field->get)
4899                         continue;
4900
4901                 tmp = field->get(field->name, config, (long) field->param1,
4902                                  buf, buflen, 1);
4903                 if (tmp < 0)
4904                         return -1;
4905                 buf += tmp;
4906                 buflen -= tmp;
4907                 result += tmp;
4908         }
4909         return result;
4910 }
4911
4912
4913 int wpa_config_get_value(const char *name, struct wpa_config *config,
4914                          char *buf, size_t buflen)
4915 {
4916         size_t i;
4917
4918         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4919                 const struct global_parse_data *field = &global_fields[i];
4920
4921                 if (os_strcmp(name, field->name) != 0)
4922                         continue;
4923                 if (!field->get)
4924                         break;
4925                 return field->get(name, config, (long) field->param1,
4926                                   buf, buflen, 0);
4927         }
4928
4929         return -1;
4930 }
4931
4932
4933 int wpa_config_get_num_global_field_names(void)
4934 {
4935         return NUM_GLOBAL_FIELDS;
4936 }
4937
4938
4939 const char * wpa_config_get_global_field_name(unsigned int i, int *no_var)
4940 {
4941         if (i >= NUM_GLOBAL_FIELDS)
4942                 return NULL;
4943
4944         if (no_var)
4945                 *no_var = !global_fields[i].param1;
4946         return global_fields[i].name;
4947 }
4948
4949
4950 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4951 {
4952         size_t i;
4953         int ret = 0;
4954
4955         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4956                 const struct global_parse_data *field = &global_fields[i];
4957                 size_t flen = os_strlen(field->name);
4958                 if (os_strncmp(pos, field->name, flen) != 0 ||
4959                     pos[flen] != '=')
4960                         continue;
4961
4962                 if (field->parser(field, config, line, pos + flen + 1)) {
4963                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4964                                    "parse '%s'.", line, pos);
4965                         ret = -1;
4966                 }
4967                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4968                         config->wps_nfc_pw_from_config = 1;
4969                 config->changed_parameters |= field->changed_flag;
4970                 break;
4971         }
4972         if (i == NUM_GLOBAL_FIELDS) {
4973 #ifdef CONFIG_AP
4974                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4975                         char *tmp = os_strchr(pos, '=');
4976                         if (tmp == NULL) {
4977                                 if (line < 0)
4978                                         return -1;
4979                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4980                                            "'%s'", line, pos);
4981                                 return -1;
4982                         }
4983                         *tmp++ = '\0';
4984                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4985                                                   tmp)) {
4986                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4987                                            "AC item", line);
4988                                 return -1;
4989                         }
4990                 }
4991 #endif /* CONFIG_AP */
4992                 if (line < 0)
4993                         return -1;
4994                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4995                            line, pos);
4996                 ret = -1;
4997         }
4998
4999         return ret;
5000 }