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, VHT_CHANWIDTH_USE_HT,
2244                     VHT_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 };
2411
2412 #undef OFFSET
2413 #undef _STR
2414 #undef STR
2415 #undef STR_KEY
2416 #undef _STR_LEN
2417 #undef STR_LEN
2418 #undef STR_LEN_KEY
2419 #undef _STR_RANGE
2420 #undef STR_RANGE
2421 #undef STR_RANGE_KEY
2422 #undef _INT
2423 #undef INT
2424 #undef INT_RANGE
2425 #undef _FUNC
2426 #undef FUNC
2427 #undef FUNC_KEY
2428 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
2429
2430
2431 /**
2432  * wpa_config_add_prio_network - Add a network to priority lists
2433  * @config: Configuration data from wpa_config_read()
2434  * @ssid: Pointer to the network configuration to be added to the list
2435  * Returns: 0 on success, -1 on failure
2436  *
2437  * This function is used to add a network block to the priority list of
2438  * networks. This must be called for each network when reading in the full
2439  * configuration. In addition, this can be used indirectly when updating
2440  * priorities by calling wpa_config_update_prio_list().
2441  */
2442 int wpa_config_add_prio_network(struct wpa_config *config,
2443                                 struct wpa_ssid *ssid)
2444 {
2445         int prio;
2446         struct wpa_ssid *prev, **nlist;
2447
2448         /*
2449          * Add to an existing priority list if one is available for the
2450          * configured priority level for this network.
2451          */
2452         for (prio = 0; prio < config->num_prio; prio++) {
2453                 prev = config->pssid[prio];
2454                 if (prev->priority == ssid->priority) {
2455                         while (prev->pnext)
2456                                 prev = prev->pnext;
2457                         prev->pnext = ssid;
2458                         return 0;
2459                 }
2460         }
2461
2462         /* First network for this priority - add a new priority list */
2463         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2464                                  sizeof(struct wpa_ssid *));
2465         if (nlist == NULL)
2466                 return -1;
2467
2468         for (prio = 0; prio < config->num_prio; prio++) {
2469                 if (nlist[prio]->priority < ssid->priority) {
2470                         os_memmove(&nlist[prio + 1], &nlist[prio],
2471                                    (config->num_prio - prio) *
2472                                    sizeof(struct wpa_ssid *));
2473                         break;
2474                 }
2475         }
2476
2477         nlist[prio] = ssid;
2478         config->num_prio++;
2479         config->pssid = nlist;
2480
2481         return 0;
2482 }
2483
2484
2485 /**
2486  * wpa_config_update_prio_list - Update network priority list
2487  * @config: Configuration data from wpa_config_read()
2488  * Returns: 0 on success, -1 on failure
2489  *
2490  * This function is called to update the priority list of networks in the
2491  * configuration when a network is being added or removed. This is also called
2492  * if a priority for a network is changed.
2493  */
2494 int wpa_config_update_prio_list(struct wpa_config *config)
2495 {
2496         struct wpa_ssid *ssid;
2497         int ret = 0;
2498
2499         os_free(config->pssid);
2500         config->pssid = NULL;
2501         config->num_prio = 0;
2502
2503         ssid = config->ssid;
2504         while (ssid) {
2505                 ssid->pnext = NULL;
2506                 if (wpa_config_add_prio_network(config, ssid) < 0)
2507                         ret = -1;
2508                 ssid = ssid->next;
2509         }
2510
2511         return ret;
2512 }
2513
2514
2515 #ifdef IEEE8021X_EAPOL
2516 static void eap_peer_config_free(struct eap_peer_config *eap)
2517 {
2518         os_free(eap->eap_methods);
2519         bin_clear_free(eap->identity, eap->identity_len);
2520         os_free(eap->anonymous_identity);
2521         os_free(eap->imsi_identity);
2522         bin_clear_free(eap->password, eap->password_len);
2523         os_free(eap->ca_cert);
2524         os_free(eap->ca_path);
2525         os_free(eap->client_cert);
2526         os_free(eap->private_key);
2527         str_clear_free(eap->private_key_passwd);
2528         os_free(eap->dh_file);
2529         os_free(eap->subject_match);
2530         os_free(eap->check_cert_subject);
2531         os_free(eap->altsubject_match);
2532         os_free(eap->domain_suffix_match);
2533         os_free(eap->domain_match);
2534         os_free(eap->ca_cert2);
2535         os_free(eap->ca_path2);
2536         os_free(eap->client_cert2);
2537         os_free(eap->private_key2);
2538         str_clear_free(eap->private_key2_passwd);
2539         os_free(eap->dh_file2);
2540         os_free(eap->subject_match2);
2541         os_free(eap->check_cert_subject2);
2542         os_free(eap->altsubject_match2);
2543         os_free(eap->domain_suffix_match2);
2544         os_free(eap->domain_match2);
2545         os_free(eap->phase1);
2546         os_free(eap->phase2);
2547         os_free(eap->pcsc);
2548         str_clear_free(eap->pin);
2549         os_free(eap->engine_id);
2550         os_free(eap->key_id);
2551         os_free(eap->cert_id);
2552         os_free(eap->ca_cert_id);
2553         os_free(eap->key2_id);
2554         os_free(eap->cert2_id);
2555         os_free(eap->ca_cert2_id);
2556         str_clear_free(eap->pin2);
2557         os_free(eap->engine2_id);
2558         os_free(eap->otp);
2559         os_free(eap->pending_req_otp);
2560         os_free(eap->pac_file);
2561         bin_clear_free(eap->new_password, eap->new_password_len);
2562         str_clear_free(eap->external_sim_resp);
2563         os_free(eap->openssl_ciphers);
2564 }
2565 #endif /* IEEE8021X_EAPOL */
2566
2567
2568 /**
2569  * wpa_config_free_ssid - Free network/ssid configuration data
2570  * @ssid: Configuration data for the network
2571  *
2572  * This function frees all resources allocated for the network configuration
2573  * data.
2574  */
2575 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2576 {
2577         struct psk_list_entry *psk;
2578
2579         os_free(ssid->ssid);
2580         str_clear_free(ssid->passphrase);
2581         os_free(ssid->ext_psk);
2582         str_clear_free(ssid->sae_password);
2583         os_free(ssid->sae_password_id);
2584 #ifdef IEEE8021X_EAPOL
2585         eap_peer_config_free(&ssid->eap);
2586 #endif /* IEEE8021X_EAPOL */
2587         os_free(ssid->id_str);
2588         os_free(ssid->scan_freq);
2589         os_free(ssid->freq_list);
2590         os_free(ssid->bgscan);
2591         os_free(ssid->p2p_client_list);
2592         os_free(ssid->bssid_blacklist);
2593         os_free(ssid->bssid_whitelist);
2594 #ifdef CONFIG_HT_OVERRIDES
2595         os_free(ssid->ht_mcs);
2596 #endif /* CONFIG_HT_OVERRIDES */
2597 #ifdef CONFIG_MESH
2598         os_free(ssid->mesh_basic_rates);
2599 #endif /* CONFIG_MESH */
2600 #ifdef CONFIG_HS20
2601         os_free(ssid->roaming_consortium_selection);
2602 #endif /* CONFIG_HS20 */
2603         os_free(ssid->dpp_connector);
2604         bin_clear_free(ssid->dpp_netaccesskey, ssid->dpp_netaccesskey_len);
2605         os_free(ssid->dpp_csign);
2606         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2607                                     list))) {
2608                 dl_list_del(&psk->list);
2609                 bin_clear_free(psk, sizeof(*psk));
2610         }
2611         bin_clear_free(ssid, sizeof(*ssid));
2612 }
2613
2614
2615 void wpa_config_free_cred(struct wpa_cred *cred)
2616 {
2617         size_t i;
2618
2619         os_free(cred->realm);
2620         str_clear_free(cred->username);
2621         str_clear_free(cred->password);
2622         os_free(cred->ca_cert);
2623         os_free(cred->client_cert);
2624         os_free(cred->private_key);
2625         str_clear_free(cred->private_key_passwd);
2626         os_free(cred->imsi);
2627         str_clear_free(cred->milenage);
2628         for (i = 0; i < cred->num_domain; i++)
2629                 os_free(cred->domain[i]);
2630         os_free(cred->domain);
2631         os_free(cred->domain_suffix_match);
2632         os_free(cred->eap_method);
2633         os_free(cred->phase1);
2634         os_free(cred->phase2);
2635         os_free(cred->excluded_ssid);
2636         os_free(cred->roaming_partner);
2637         os_free(cred->provisioning_sp);
2638         for (i = 0; i < cred->num_req_conn_capab; i++)
2639                 os_free(cred->req_conn_capab_port[i]);
2640         os_free(cred->req_conn_capab_port);
2641         os_free(cred->req_conn_capab_proto);
2642         os_free(cred);
2643 }
2644
2645
2646 void wpa_config_flush_blobs(struct wpa_config *config)
2647 {
2648 #ifndef CONFIG_NO_CONFIG_BLOBS
2649         struct wpa_config_blob *blob, *prev;
2650
2651         blob = config->blobs;
2652         config->blobs = NULL;
2653         while (blob) {
2654                 prev = blob;
2655                 blob = blob->next;
2656                 wpa_config_free_blob(prev);
2657         }
2658 #endif /* CONFIG_NO_CONFIG_BLOBS */
2659 }
2660
2661
2662 /**
2663  * wpa_config_free - Free configuration data
2664  * @config: Configuration data from wpa_config_read()
2665  *
2666  * This function frees all resources allocated for the configuration data by
2667  * wpa_config_read().
2668  */
2669 void wpa_config_free(struct wpa_config *config)
2670 {
2671         struct wpa_ssid *ssid, *prev = NULL;
2672         struct wpa_cred *cred, *cprev;
2673         int i;
2674
2675         ssid = config->ssid;
2676         while (ssid) {
2677                 prev = ssid;
2678                 ssid = ssid->next;
2679                 wpa_config_free_ssid(prev);
2680         }
2681
2682         cred = config->cred;
2683         while (cred) {
2684                 cprev = cred;
2685                 cred = cred->next;
2686                 wpa_config_free_cred(cprev);
2687         }
2688
2689         wpa_config_flush_blobs(config);
2690
2691         wpabuf_free(config->wps_vendor_ext_m1);
2692         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2693                 wpabuf_free(config->wps_vendor_ext[i]);
2694         os_free(config->ctrl_interface);
2695         os_free(config->ctrl_interface_group);
2696         os_free(config->opensc_engine_path);
2697         os_free(config->pkcs11_engine_path);
2698         os_free(config->pkcs11_module_path);
2699         os_free(config->openssl_ciphers);
2700         os_free(config->pcsc_reader);
2701         str_clear_free(config->pcsc_pin);
2702         os_free(config->driver_param);
2703         os_free(config->device_name);
2704         os_free(config->manufacturer);
2705         os_free(config->model_name);
2706         os_free(config->model_number);
2707         os_free(config->serial_number);
2708         os_free(config->config_methods);
2709         os_free(config->p2p_ssid_postfix);
2710         os_free(config->pssid);
2711         os_free(config->p2p_pref_chan);
2712         os_free(config->p2p_no_go_freq.range);
2713         os_free(config->autoscan);
2714         os_free(config->freq_list);
2715         wpabuf_free(config->wps_nfc_dh_pubkey);
2716         wpabuf_free(config->wps_nfc_dh_privkey);
2717         wpabuf_free(config->wps_nfc_dev_pw);
2718         os_free(config->ext_password_backend);
2719         os_free(config->sae_groups);
2720         wpabuf_free(config->ap_vendor_elements);
2721         os_free(config->osu_dir);
2722         os_free(config->bgscan);
2723         os_free(config->wowlan_triggers);
2724         os_free(config->fst_group_id);
2725         os_free(config->sched_scan_plans);
2726 #ifdef CONFIG_MBO
2727         os_free(config->non_pref_chan);
2728 #endif /* CONFIG_MBO */
2729
2730         os_free(config);
2731 }
2732
2733
2734 /**
2735  * wpa_config_foreach_network - Iterate over each configured network
2736  * @config: Configuration data from wpa_config_read()
2737  * @func: Callback function to process each network
2738  * @arg: Opaque argument to pass to callback function
2739  *
2740  * Iterate over the set of configured networks calling the specified
2741  * function for each item. We guard against callbacks removing the
2742  * supplied network.
2743  */
2744 void wpa_config_foreach_network(struct wpa_config *config,
2745                                 void (*func)(void *, struct wpa_ssid *),
2746                                 void *arg)
2747 {
2748         struct wpa_ssid *ssid, *next;
2749
2750         ssid = config->ssid;
2751         while (ssid) {
2752                 next = ssid->next;
2753                 func(arg, ssid);
2754                 ssid = next;
2755         }
2756 }
2757
2758
2759 /**
2760  * wpa_config_get_network - Get configured network based on id
2761  * @config: Configuration data from wpa_config_read()
2762  * @id: Unique network id to search for
2763  * Returns: Network configuration or %NULL if not found
2764  */
2765 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2766 {
2767         struct wpa_ssid *ssid;
2768
2769         ssid = config->ssid;
2770         while (ssid) {
2771                 if (id == ssid->id)
2772                         break;
2773                 ssid = ssid->next;
2774         }
2775
2776         return ssid;
2777 }
2778
2779
2780 /**
2781  * wpa_config_add_network - Add a new network with empty configuration
2782  * @config: Configuration data from wpa_config_read()
2783  * Returns: The new network configuration or %NULL if operation failed
2784  */
2785 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2786 {
2787         int id;
2788         struct wpa_ssid *ssid, *last = NULL;
2789
2790         id = -1;
2791         ssid = config->ssid;
2792         while (ssid) {
2793                 if (ssid->id > id)
2794                         id = ssid->id;
2795                 last = ssid;
2796                 ssid = ssid->next;
2797         }
2798         id++;
2799
2800         ssid = os_zalloc(sizeof(*ssid));
2801         if (ssid == NULL)
2802                 return NULL;
2803         ssid->id = id;
2804         dl_list_init(&ssid->psk_list);
2805         if (last)
2806                 last->next = ssid;
2807         else
2808                 config->ssid = ssid;
2809
2810         wpa_config_update_prio_list(config);
2811
2812         return ssid;
2813 }
2814
2815
2816 /**
2817  * wpa_config_remove_network - Remove a configured network based on id
2818  * @config: Configuration data from wpa_config_read()
2819  * @id: Unique network id to search for
2820  * Returns: 0 on success, or -1 if the network was not found
2821  */
2822 int wpa_config_remove_network(struct wpa_config *config, int id)
2823 {
2824         struct wpa_ssid *ssid, *prev = NULL;
2825
2826         ssid = config->ssid;
2827         while (ssid) {
2828                 if (id == ssid->id)
2829                         break;
2830                 prev = ssid;
2831                 ssid = ssid->next;
2832         }
2833
2834         if (ssid == NULL)
2835                 return -1;
2836
2837         if (prev)
2838                 prev->next = ssid->next;
2839         else
2840                 config->ssid = ssid->next;
2841
2842         wpa_config_update_prio_list(config);
2843         wpa_config_free_ssid(ssid);
2844         return 0;
2845 }
2846
2847
2848 /**
2849  * wpa_config_set_network_defaults - Set network default values
2850  * @ssid: Pointer to network configuration data
2851  */
2852 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2853 {
2854         ssid->proto = DEFAULT_PROTO;
2855         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2856         ssid->group_cipher = DEFAULT_GROUP;
2857         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2858         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2859         ssid->ht = 1;
2860 #ifdef IEEE8021X_EAPOL
2861         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2862         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2863         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2864         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2865 #endif /* IEEE8021X_EAPOL */
2866 #ifdef CONFIG_MESH
2867         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2868         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2869         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2870         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2871         ssid->mesh_rssi_threshold = DEFAULT_MESH_RSSI_THRESHOLD;
2872 #endif /* CONFIG_MESH */
2873 #ifdef CONFIG_HT_OVERRIDES
2874         ssid->disable_ht = DEFAULT_DISABLE_HT;
2875         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2876         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2877         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2878         ssid->tx_stbc = DEFAULT_TX_STBC;
2879         ssid->rx_stbc = DEFAULT_RX_STBC;
2880         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2881         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2882         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2883 #endif /* CONFIG_HT_OVERRIDES */
2884 #ifdef CONFIG_VHT_OVERRIDES
2885         ssid->vht_rx_mcs_nss_1 = -1;
2886         ssid->vht_rx_mcs_nss_2 = -1;
2887         ssid->vht_rx_mcs_nss_3 = -1;
2888         ssid->vht_rx_mcs_nss_4 = -1;
2889         ssid->vht_rx_mcs_nss_5 = -1;
2890         ssid->vht_rx_mcs_nss_6 = -1;
2891         ssid->vht_rx_mcs_nss_7 = -1;
2892         ssid->vht_rx_mcs_nss_8 = -1;
2893         ssid->vht_tx_mcs_nss_1 = -1;
2894         ssid->vht_tx_mcs_nss_2 = -1;
2895         ssid->vht_tx_mcs_nss_3 = -1;
2896         ssid->vht_tx_mcs_nss_4 = -1;
2897         ssid->vht_tx_mcs_nss_5 = -1;
2898         ssid->vht_tx_mcs_nss_6 = -1;
2899         ssid->vht_tx_mcs_nss_7 = -1;
2900         ssid->vht_tx_mcs_nss_8 = -1;
2901 #endif /* CONFIG_VHT_OVERRIDES */
2902         ssid->proactive_key_caching = -1;
2903 #ifdef CONFIG_IEEE80211W
2904         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2905 #endif /* CONFIG_IEEE80211W */
2906 #ifdef CONFIG_MACSEC
2907         ssid->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
2908 #endif /* CONFIG_MACSEC */
2909         ssid->mac_addr = -1;
2910         ssid->max_oper_chwidth = DEFAULT_MAX_OPER_CHWIDTH;
2911 }
2912
2913
2914 /**
2915  * wpa_config_set - Set a variable in network configuration
2916  * @ssid: Pointer to network configuration data
2917  * @var: Variable name, e.g., "ssid"
2918  * @value: Variable value
2919  * @line: Line number in configuration file or 0 if not used
2920  * Returns: 0 on success with possible change in the value, 1 on success with
2921  * no change to previously configured value, or -1 on failure
2922  *
2923  * This function can be used to set network configuration variables based on
2924  * both the configuration file and management interface input. The value
2925  * parameter must be in the same format as the text-based configuration file is
2926  * using. For example, strings are using double quotation marks.
2927  */
2928 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2929                    int line)
2930 {
2931         size_t i;
2932         int ret = 0;
2933
2934         if (ssid == NULL || var == NULL || value == NULL)
2935                 return -1;
2936
2937         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2938                 const struct parse_data *field = &ssid_fields[i];
2939                 if (os_strcmp(var, field->name) != 0)
2940                         continue;
2941
2942                 ret = field->parser(field, ssid, line, value);
2943                 if (ret < 0) {
2944                         if (line) {
2945                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2946                                            "parse %s '%s'.", line, var, value);
2947                         }
2948                         ret = -1;
2949                 }
2950                 break;
2951         }
2952         if (i == NUM_SSID_FIELDS) {
2953                 if (line) {
2954                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2955                                    "'%s'.", line, var);
2956                 }
2957                 ret = -1;
2958         }
2959
2960         return ret;
2961 }
2962
2963
2964 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2965                           const char *value)
2966 {
2967         size_t len;
2968         char *buf;
2969         int ret;
2970
2971         len = os_strlen(value);
2972         buf = os_malloc(len + 3);
2973         if (buf == NULL)
2974                 return -1;
2975         buf[0] = '"';
2976         os_memcpy(buf + 1, value, len);
2977         buf[len + 1] = '"';
2978         buf[len + 2] = '\0';
2979         ret = wpa_config_set(ssid, var, buf, 0);
2980         os_free(buf);
2981         return ret;
2982 }
2983
2984
2985 /**
2986  * wpa_config_get_all - Get all options from network configuration
2987  * @ssid: Pointer to network configuration data
2988  * @get_keys: Determines if keys/passwords will be included in returned list
2989  *      (if they may be exported)
2990  * Returns: %NULL terminated list of all set keys and their values in the form
2991  * of [key1, val1, key2, val2, ... , NULL]
2992  *
2993  * This function can be used to get list of all configured network properties.
2994  * The caller is responsible for freeing the returned list and all its
2995  * elements.
2996  */
2997 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2998 {
2999 #ifdef NO_CONFIG_WRITE
3000         return NULL;
3001 #else /* NO_CONFIG_WRITE */
3002         const struct parse_data *field;
3003         char *key, *value;
3004         size_t i;
3005         char **props;
3006         int fields_num;
3007
3008         get_keys = get_keys && ssid->export_keys;
3009
3010         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
3011         if (!props)
3012                 return NULL;
3013
3014         fields_num = 0;
3015         for (i = 0; i < NUM_SSID_FIELDS; i++) {
3016                 field = &ssid_fields[i];
3017                 if (field->key_data && !get_keys)
3018                         continue;
3019                 value = field->writer(field, ssid);
3020                 if (value == NULL)
3021                         continue;
3022                 if (os_strlen(value) == 0) {
3023                         os_free(value);
3024                         continue;
3025                 }
3026
3027                 key = os_strdup(field->name);
3028                 if (key == NULL) {
3029                         os_free(value);
3030                         goto err;
3031                 }
3032
3033                 props[fields_num * 2] = key;
3034                 props[fields_num * 2 + 1] = value;
3035
3036                 fields_num++;
3037         }
3038
3039         return props;
3040
3041 err:
3042         for (i = 0; props[i]; i++)
3043                 os_free(props[i]);
3044         os_free(props);
3045         return NULL;
3046 #endif /* NO_CONFIG_WRITE */
3047 }
3048
3049
3050 #ifndef NO_CONFIG_WRITE
3051 /**
3052  * wpa_config_get - Get a variable in network configuration
3053  * @ssid: Pointer to network configuration data
3054  * @var: Variable name, e.g., "ssid"
3055  * Returns: Value of the variable or %NULL on failure
3056  *
3057  * This function can be used to get network configuration variables. The
3058  * returned value is a copy of the configuration variable in text format, i.e,.
3059  * the same format that the text-based configuration file and wpa_config_set()
3060  * are using for the value. The caller is responsible for freeing the returned
3061  * value.
3062  */
3063 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
3064 {
3065         size_t i;
3066
3067         if (ssid == NULL || var == NULL)
3068                 return NULL;
3069
3070         for (i = 0; i < NUM_SSID_FIELDS; i++) {
3071                 const struct parse_data *field = &ssid_fields[i];
3072                 if (os_strcmp(var, field->name) == 0) {
3073                         char *ret = field->writer(field, ssid);
3074
3075                         if (ret && has_newline(ret)) {
3076                                 wpa_printf(MSG_ERROR,
3077                                            "Found newline in value for %s; not returning it",
3078                                            var);
3079                                 os_free(ret);
3080                                 ret = NULL;
3081                         }
3082
3083                         return ret;
3084                 }
3085         }
3086
3087         return NULL;
3088 }
3089
3090
3091 /**
3092  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
3093  * @ssid: Pointer to network configuration data
3094  * @var: Variable name, e.g., "ssid"
3095  * Returns: Value of the variable or %NULL on failure
3096  *
3097  * This function can be used to get network configuration variable like
3098  * wpa_config_get(). The only difference is that this functions does not expose
3099  * key/password material from the configuration. In case a key/password field
3100  * is requested, the returned value is an empty string or %NULL if the variable
3101  * is not set or "*" if the variable is set (regardless of its value). The
3102  * returned value is a copy of the configuration variable in text format, i.e,.
3103  * the same format that the text-based configuration file and wpa_config_set()
3104  * are using for the value. The caller is responsible for freeing the returned
3105  * value.
3106  */
3107 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
3108 {
3109         size_t i;
3110
3111         if (ssid == NULL || var == NULL)
3112                 return NULL;
3113
3114         for (i = 0; i < NUM_SSID_FIELDS; i++) {
3115                 const struct parse_data *field = &ssid_fields[i];
3116                 if (os_strcmp(var, field->name) == 0) {
3117                         char *res = field->writer(field, ssid);
3118                         if (field->key_data) {
3119                                 if (res && res[0]) {
3120                                         wpa_printf(MSG_DEBUG, "Do not allow "
3121                                                    "key_data field to be "
3122                                                    "exposed");
3123                                         str_clear_free(res);
3124                                         return os_strdup("*");
3125                                 }
3126
3127                                 os_free(res);
3128                                 return NULL;
3129                         }
3130                         return res;
3131                 }
3132         }
3133
3134         return NULL;
3135 }
3136 #endif /* NO_CONFIG_WRITE */
3137
3138
3139 /**
3140  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
3141  * @ssid: Pointer to network configuration data
3142  *
3143  * This function must be called to update WPA PSK when either SSID or the
3144  * passphrase has changed for the network configuration.
3145  */
3146 void wpa_config_update_psk(struct wpa_ssid *ssid)
3147 {
3148 #ifndef CONFIG_NO_PBKDF2
3149         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
3150                     ssid->psk, PMK_LEN);
3151         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
3152                         ssid->psk, PMK_LEN);
3153         ssid->psk_set = 1;
3154 #endif /* CONFIG_NO_PBKDF2 */
3155 }
3156
3157
3158 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
3159                                               const char *value)
3160 {
3161         u8 *proto;
3162         int **port;
3163         int *ports, *nports;
3164         const char *pos;
3165         unsigned int num_ports;
3166
3167         proto = os_realloc_array(cred->req_conn_capab_proto,
3168                                  cred->num_req_conn_capab + 1, sizeof(u8));
3169         if (proto == NULL)
3170                 return -1;
3171         cred->req_conn_capab_proto = proto;
3172
3173         port = os_realloc_array(cred->req_conn_capab_port,
3174                                 cred->num_req_conn_capab + 1, sizeof(int *));
3175         if (port == NULL)
3176                 return -1;
3177         cred->req_conn_capab_port = port;
3178
3179         proto[cred->num_req_conn_capab] = atoi(value);
3180
3181         pos = os_strchr(value, ':');
3182         if (pos == NULL) {
3183                 port[cred->num_req_conn_capab] = NULL;
3184                 cred->num_req_conn_capab++;
3185                 return 0;
3186         }
3187         pos++;
3188
3189         ports = NULL;
3190         num_ports = 0;
3191
3192         while (*pos) {
3193                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3194                 if (nports == NULL) {
3195                         os_free(ports);
3196                         return -1;
3197                 }
3198                 ports = nports;
3199                 ports[num_ports++] = atoi(pos);
3200
3201                 pos = os_strchr(pos, ',');
3202                 if (pos == NULL)
3203                         break;
3204                 pos++;
3205         }
3206
3207         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
3208         if (nports == NULL) {
3209                 os_free(ports);
3210                 return -1;
3211         }
3212         ports = nports;
3213         ports[num_ports] = -1;
3214
3215         port[cred->num_req_conn_capab] = ports;
3216         cred->num_req_conn_capab++;
3217         return 0;
3218 }
3219
3220
3221 static int wpa_config_set_cred_roaming_consortiums(struct wpa_cred *cred,
3222                                                    const char *value)
3223 {
3224         u8 roaming_consortiums[MAX_ROAMING_CONS][MAX_ROAMING_CONS_OI_LEN];
3225         size_t roaming_consortiums_len[MAX_ROAMING_CONS];
3226         unsigned int num_roaming_consortiums = 0;
3227         const char *pos, *end;
3228         size_t len;
3229
3230         os_memset(roaming_consortiums, 0, sizeof(roaming_consortiums));
3231         os_memset(roaming_consortiums_len, 0, sizeof(roaming_consortiums_len));
3232
3233         for (pos = value;;) {
3234                 end = os_strchr(pos, ',');
3235                 len = end ? (size_t) (end - pos) : os_strlen(pos);
3236                 if (!end && len == 0)
3237                         break;
3238                 if (len == 0 || (len & 1) != 0 ||
3239                     len / 2 > MAX_ROAMING_CONS_OI_LEN ||
3240                     hexstr2bin(pos,
3241                                roaming_consortiums[num_roaming_consortiums],
3242                                len / 2) < 0) {
3243                         wpa_printf(MSG_INFO,
3244                                    "Invalid roaming_consortiums entry: %s",
3245                                    pos);
3246                         return -1;
3247                 }
3248                 roaming_consortiums_len[num_roaming_consortiums] = len / 2;
3249                 num_roaming_consortiums++;
3250
3251                 if (!end)
3252                         break;
3253
3254                 if (num_roaming_consortiums >= MAX_ROAMING_CONS) {
3255                         wpa_printf(MSG_INFO,
3256                                    "Too many roaming_consortiums OIs");
3257                         return -1;
3258                 }
3259
3260                 pos = end + 1;
3261         }
3262
3263         os_memcpy(cred->roaming_consortiums, roaming_consortiums,
3264                   sizeof(roaming_consortiums));
3265         os_memcpy(cred->roaming_consortiums_len, roaming_consortiums_len,
3266                   sizeof(roaming_consortiums_len));
3267         cred->num_roaming_consortiums = num_roaming_consortiums;
3268
3269         return 0;
3270 }
3271
3272
3273 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
3274                         const char *value, int line)
3275 {
3276         char *val;
3277         size_t len;
3278         int res;
3279
3280         if (os_strcmp(var, "temporary") == 0) {
3281                 cred->temporary = atoi(value);
3282                 return 0;
3283         }
3284
3285         if (os_strcmp(var, "priority") == 0) {
3286                 cred->priority = atoi(value);
3287                 return 0;
3288         }
3289
3290         if (os_strcmp(var, "sp_priority") == 0) {
3291                 int prio = atoi(value);
3292                 if (prio < 0 || prio > 255)
3293                         return -1;
3294                 cred->sp_priority = prio;
3295                 return 0;
3296         }
3297
3298         if (os_strcmp(var, "pcsc") == 0) {
3299                 cred->pcsc = atoi(value);
3300                 return 0;
3301         }
3302
3303         if (os_strcmp(var, "eap") == 0) {
3304                 struct eap_method_type method;
3305                 method.method = eap_peer_get_type(value, &method.vendor);
3306                 if (method.vendor == EAP_VENDOR_IETF &&
3307                     method.method == EAP_TYPE_NONE) {
3308                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
3309                                    "for a credential", line, value);
3310                         return -1;
3311                 }
3312                 os_free(cred->eap_method);
3313                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
3314                 if (cred->eap_method == NULL)
3315                         return -1;
3316                 os_memcpy(cred->eap_method, &method, sizeof(method));
3317                 return 0;
3318         }
3319
3320         if (os_strcmp(var, "password") == 0 &&
3321             os_strncmp(value, "ext:", 4) == 0) {
3322                 if (has_newline(value))
3323                         return -1;
3324                 str_clear_free(cred->password);
3325                 cred->password = os_strdup(value);
3326                 cred->ext_password = 1;
3327                 return 0;
3328         }
3329
3330         if (os_strcmp(var, "update_identifier") == 0) {
3331                 cred->update_identifier = atoi(value);
3332                 return 0;
3333         }
3334
3335         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
3336                 cred->min_dl_bandwidth_home = atoi(value);
3337                 return 0;
3338         }
3339
3340         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
3341                 cred->min_ul_bandwidth_home = atoi(value);
3342                 return 0;
3343         }
3344
3345         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
3346                 cred->min_dl_bandwidth_roaming = atoi(value);
3347                 return 0;
3348         }
3349
3350         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
3351                 cred->min_ul_bandwidth_roaming = atoi(value);
3352                 return 0;
3353         }
3354
3355         if (os_strcmp(var, "max_bss_load") == 0) {
3356                 cred->max_bss_load = atoi(value);
3357                 return 0;
3358         }
3359
3360         if (os_strcmp(var, "req_conn_capab") == 0)
3361                 return wpa_config_set_cred_req_conn_capab(cred, value);
3362
3363         if (os_strcmp(var, "ocsp") == 0) {
3364                 cred->ocsp = atoi(value);
3365                 return 0;
3366         }
3367
3368         if (os_strcmp(var, "sim_num") == 0) {
3369                 cred->sim_num = atoi(value);
3370                 return 0;
3371         }
3372
3373         val = wpa_config_parse_string(value, &len);
3374         if (val == NULL ||
3375             (os_strcmp(var, "excluded_ssid") != 0 &&
3376              os_strcmp(var, "roaming_consortium") != 0 &&
3377              os_strcmp(var, "required_roaming_consortium") != 0 &&
3378              has_newline(val))) {
3379                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
3380                            "value '%s'.", line, var, value);
3381                 os_free(val);
3382                 return -1;
3383         }
3384
3385         if (os_strcmp(var, "realm") == 0) {
3386                 os_free(cred->realm);
3387                 cred->realm = val;
3388                 return 0;
3389         }
3390
3391         if (os_strcmp(var, "username") == 0) {
3392                 str_clear_free(cred->username);
3393                 cred->username = val;
3394                 return 0;
3395         }
3396
3397         if (os_strcmp(var, "password") == 0) {
3398                 str_clear_free(cred->password);
3399                 cred->password = val;
3400                 cred->ext_password = 0;
3401                 return 0;
3402         }
3403
3404         if (os_strcmp(var, "ca_cert") == 0) {
3405                 os_free(cred->ca_cert);
3406                 cred->ca_cert = val;
3407                 return 0;
3408         }
3409
3410         if (os_strcmp(var, "client_cert") == 0) {
3411                 os_free(cred->client_cert);
3412                 cred->client_cert = val;
3413                 return 0;
3414         }
3415
3416         if (os_strcmp(var, "private_key") == 0) {
3417                 os_free(cred->private_key);
3418                 cred->private_key = val;
3419                 return 0;
3420         }
3421
3422         if (os_strcmp(var, "private_key_passwd") == 0) {
3423                 str_clear_free(cred->private_key_passwd);
3424                 cred->private_key_passwd = val;
3425                 return 0;
3426         }
3427
3428         if (os_strcmp(var, "imsi") == 0) {
3429                 os_free(cred->imsi);
3430                 cred->imsi = val;
3431                 return 0;
3432         }
3433
3434         if (os_strcmp(var, "milenage") == 0) {
3435                 str_clear_free(cred->milenage);
3436                 cred->milenage = val;
3437                 return 0;
3438         }
3439
3440         if (os_strcmp(var, "domain_suffix_match") == 0) {
3441                 os_free(cred->domain_suffix_match);
3442                 cred->domain_suffix_match = val;
3443                 return 0;
3444         }
3445
3446         if (os_strcmp(var, "domain") == 0) {
3447                 char **new_domain;
3448                 new_domain = os_realloc_array(cred->domain,
3449                                               cred->num_domain + 1,
3450                                               sizeof(char *));
3451                 if (new_domain == NULL) {
3452                         os_free(val);
3453                         return -1;
3454                 }
3455                 new_domain[cred->num_domain++] = val;
3456                 cred->domain = new_domain;
3457                 return 0;
3458         }
3459
3460         if (os_strcmp(var, "phase1") == 0) {
3461                 os_free(cred->phase1);
3462                 cred->phase1 = val;
3463                 return 0;
3464         }
3465
3466         if (os_strcmp(var, "phase2") == 0) {
3467                 os_free(cred->phase2);
3468                 cred->phase2 = val;
3469                 return 0;
3470         }
3471
3472         if (os_strcmp(var, "roaming_consortium") == 0) {
3473                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
3474                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3475                                    "roaming_consortium length %d (3..15 "
3476                                    "expected)", line, (int) len);
3477                         os_free(val);
3478                         return -1;
3479                 }
3480                 os_memcpy(cred->roaming_consortium, val, len);
3481                 cred->roaming_consortium_len = len;
3482                 os_free(val);
3483                 return 0;
3484         }
3485
3486         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3487                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
3488                 {
3489                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3490                                    "required_roaming_consortium length %d "
3491                                    "(3..15 expected)", line, (int) len);
3492                         os_free(val);
3493                         return -1;
3494                 }
3495                 os_memcpy(cred->required_roaming_consortium, val, len);
3496                 cred->required_roaming_consortium_len = len;
3497                 os_free(val);
3498                 return 0;
3499         }
3500
3501         if (os_strcmp(var, "roaming_consortiums") == 0) {
3502                 res = wpa_config_set_cred_roaming_consortiums(cred, val);
3503                 if (res < 0)
3504                         wpa_printf(MSG_ERROR,
3505                                    "Line %d: invalid roaming_consortiums",
3506                                    line);
3507                 os_free(val);
3508                 return res;
3509         }
3510
3511         if (os_strcmp(var, "excluded_ssid") == 0) {
3512                 struct excluded_ssid *e;
3513
3514                 if (len > SSID_MAX_LEN) {
3515                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3516                                    "excluded_ssid length %d", line, (int) len);
3517                         os_free(val);
3518                         return -1;
3519                 }
3520
3521                 e = os_realloc_array(cred->excluded_ssid,
3522                                      cred->num_excluded_ssid + 1,
3523                                      sizeof(struct excluded_ssid));
3524                 if (e == NULL) {
3525                         os_free(val);
3526                         return -1;
3527                 }
3528                 cred->excluded_ssid = e;
3529
3530                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
3531                 os_memcpy(e->ssid, val, len);
3532                 e->ssid_len = len;
3533
3534                 os_free(val);
3535
3536                 return 0;
3537         }
3538
3539         if (os_strcmp(var, "roaming_partner") == 0) {
3540                 struct roaming_partner *p;
3541                 char *pos;
3542
3543                 p = os_realloc_array(cred->roaming_partner,
3544                                      cred->num_roaming_partner + 1,
3545                                      sizeof(struct roaming_partner));
3546                 if (p == NULL) {
3547                         os_free(val);
3548                         return -1;
3549                 }
3550                 cred->roaming_partner = p;
3551
3552                 p = &cred->roaming_partner[cred->num_roaming_partner];
3553
3554                 pos = os_strchr(val, ',');
3555                 if (pos == NULL) {
3556                         os_free(val);
3557                         return -1;
3558                 }
3559                 *pos++ = '\0';
3560                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3561                         os_free(val);
3562                         return -1;
3563                 }
3564                 os_memcpy(p->fqdn, val, pos - val);
3565
3566                 p->exact_match = atoi(pos);
3567
3568                 pos = os_strchr(pos, ',');
3569                 if (pos == NULL) {
3570                         os_free(val);
3571                         return -1;
3572                 }
3573                 *pos++ = '\0';
3574
3575                 p->priority = atoi(pos);
3576
3577                 pos = os_strchr(pos, ',');
3578                 if (pos == NULL) {
3579                         os_free(val);
3580                         return -1;
3581                 }
3582                 *pos++ = '\0';
3583
3584                 if (os_strlen(pos) >= sizeof(p->country)) {
3585                         os_free(val);
3586                         return -1;
3587                 }
3588                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3589
3590                 cred->num_roaming_partner++;
3591                 os_free(val);
3592
3593                 return 0;
3594         }
3595
3596         if (os_strcmp(var, "provisioning_sp") == 0) {
3597                 os_free(cred->provisioning_sp);
3598                 cred->provisioning_sp = val;
3599                 return 0;
3600         }
3601
3602         if (line) {
3603                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3604                            line, var);
3605         }
3606
3607         os_free(val);
3608
3609         return -1;
3610 }
3611
3612
3613 static char * alloc_int_str(int val)
3614 {
3615         const unsigned int bufsize = 20;
3616         char *buf;
3617         int res;
3618
3619         buf = os_malloc(bufsize);
3620         if (buf == NULL)
3621                 return NULL;
3622         res = os_snprintf(buf, bufsize, "%d", val);
3623         if (os_snprintf_error(bufsize, res)) {
3624                 os_free(buf);
3625                 buf = NULL;
3626         }
3627         return buf;
3628 }
3629
3630
3631 static char * alloc_strdup(const char *str)
3632 {
3633         if (str == NULL)
3634                 return NULL;
3635         return os_strdup(str);
3636 }
3637
3638
3639 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3640 {
3641         if (os_strcmp(var, "temporary") == 0)
3642                 return alloc_int_str(cred->temporary);
3643
3644         if (os_strcmp(var, "priority") == 0)
3645                 return alloc_int_str(cred->priority);
3646
3647         if (os_strcmp(var, "sp_priority") == 0)
3648                 return alloc_int_str(cred->sp_priority);
3649
3650         if (os_strcmp(var, "pcsc") == 0)
3651                 return alloc_int_str(cred->pcsc);
3652
3653         if (os_strcmp(var, "eap") == 0) {
3654                 if (!cred->eap_method)
3655                         return NULL;
3656                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3657                                                  cred->eap_method[0].method));
3658         }
3659
3660         if (os_strcmp(var, "update_identifier") == 0)
3661                 return alloc_int_str(cred->update_identifier);
3662
3663         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3664                 return alloc_int_str(cred->min_dl_bandwidth_home);
3665
3666         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3667                 return alloc_int_str(cred->min_ul_bandwidth_home);
3668
3669         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3670                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3671
3672         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3673                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3674
3675         if (os_strcmp(var, "max_bss_load") == 0)
3676                 return alloc_int_str(cred->max_bss_load);
3677
3678         if (os_strcmp(var, "req_conn_capab") == 0) {
3679                 unsigned int i;
3680                 char *buf, *end, *pos;
3681                 int ret;
3682
3683                 if (!cred->num_req_conn_capab)
3684                         return NULL;
3685
3686                 buf = os_malloc(4000);
3687                 if (buf == NULL)
3688                         return NULL;
3689                 pos = buf;
3690                 end = pos + 4000;
3691                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3692                         int *ports;
3693
3694                         ret = os_snprintf(pos, end - pos, "%s%u",
3695                                           i > 0 ? "\n" : "",
3696                                           cred->req_conn_capab_proto[i]);
3697                         if (os_snprintf_error(end - pos, ret))
3698                                 return buf;
3699                         pos += ret;
3700
3701                         ports = cred->req_conn_capab_port[i];
3702                         if (ports) {
3703                                 int j;
3704                                 for (j = 0; ports[j] != -1; j++) {
3705                                         ret = os_snprintf(pos, end - pos,
3706                                                           "%s%d",
3707                                                           j > 0 ? "," : ":",
3708                                                           ports[j]);
3709                                         if (os_snprintf_error(end - pos, ret))
3710                                                 return buf;
3711                                         pos += ret;
3712                                 }
3713                         }
3714                 }
3715
3716                 return buf;
3717         }
3718
3719         if (os_strcmp(var, "ocsp") == 0)
3720                 return alloc_int_str(cred->ocsp);
3721
3722         if (os_strcmp(var, "realm") == 0)
3723                 return alloc_strdup(cred->realm);
3724
3725         if (os_strcmp(var, "username") == 0)
3726                 return alloc_strdup(cred->username);
3727
3728         if (os_strcmp(var, "password") == 0) {
3729                 if (!cred->password)
3730                         return NULL;
3731                 return alloc_strdup("*");
3732         }
3733
3734         if (os_strcmp(var, "ca_cert") == 0)
3735                 return alloc_strdup(cred->ca_cert);
3736
3737         if (os_strcmp(var, "client_cert") == 0)
3738                 return alloc_strdup(cred->client_cert);
3739
3740         if (os_strcmp(var, "private_key") == 0)
3741                 return alloc_strdup(cred->private_key);
3742
3743         if (os_strcmp(var, "private_key_passwd") == 0) {
3744                 if (!cred->private_key_passwd)
3745                         return NULL;
3746                 return alloc_strdup("*");
3747         }
3748
3749         if (os_strcmp(var, "imsi") == 0)
3750                 return alloc_strdup(cred->imsi);
3751
3752         if (os_strcmp(var, "milenage") == 0) {
3753                 if (!(cred->milenage))
3754                         return NULL;
3755                 return alloc_strdup("*");
3756         }
3757
3758         if (os_strcmp(var, "domain_suffix_match") == 0)
3759                 return alloc_strdup(cred->domain_suffix_match);
3760
3761         if (os_strcmp(var, "domain") == 0) {
3762                 unsigned int i;
3763                 char *buf, *end, *pos;
3764                 int ret;
3765
3766                 if (!cred->num_domain)
3767                         return NULL;
3768
3769                 buf = os_malloc(4000);
3770                 if (buf == NULL)
3771                         return NULL;
3772                 pos = buf;
3773                 end = pos + 4000;
3774
3775                 for (i = 0; i < cred->num_domain; i++) {
3776                         ret = os_snprintf(pos, end - pos, "%s%s",
3777                                           i > 0 ? "\n" : "", cred->domain[i]);
3778                         if (os_snprintf_error(end - pos, ret))
3779                                 return buf;
3780                         pos += ret;
3781                 }
3782
3783                 return buf;
3784         }
3785
3786         if (os_strcmp(var, "phase1") == 0)
3787                 return alloc_strdup(cred->phase1);
3788
3789         if (os_strcmp(var, "phase2") == 0)
3790                 return alloc_strdup(cred->phase2);
3791
3792         if (os_strcmp(var, "roaming_consortium") == 0) {
3793                 size_t buflen;
3794                 char *buf;
3795
3796                 if (!cred->roaming_consortium_len)
3797                         return NULL;
3798                 buflen = cred->roaming_consortium_len * 2 + 1;
3799                 buf = os_malloc(buflen);
3800                 if (buf == NULL)
3801                         return NULL;
3802                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3803                                  cred->roaming_consortium_len);
3804                 return buf;
3805         }
3806
3807         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3808                 size_t buflen;
3809                 char *buf;
3810
3811                 if (!cred->required_roaming_consortium_len)
3812                         return NULL;
3813                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3814                 buf = os_malloc(buflen);
3815                 if (buf == NULL)
3816                         return NULL;
3817                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3818                                  cred->required_roaming_consortium_len);
3819                 return buf;
3820         }
3821
3822         if (os_strcmp(var, "roaming_consortiums") == 0) {
3823                 size_t buflen;
3824                 char *buf, *pos;
3825                 size_t i;
3826
3827                 if (!cred->num_roaming_consortiums)
3828                         return NULL;
3829                 buflen = cred->num_roaming_consortiums *
3830                         MAX_ROAMING_CONS_OI_LEN * 2 + 1;
3831                 buf = os_malloc(buflen);
3832                 if (!buf)
3833                         return NULL;
3834                 pos = buf;
3835                 for (i = 0; i < cred->num_roaming_consortiums; i++) {
3836                         if (i > 0)
3837                                 *pos++ = ',';
3838                         pos += wpa_snprintf_hex(
3839                                 pos, buf + buflen - pos,
3840                                 cred->roaming_consortiums[i],
3841                                 cred->roaming_consortiums_len[i]);
3842                 }
3843                 *pos = '\0';
3844                 return buf;
3845         }
3846
3847         if (os_strcmp(var, "excluded_ssid") == 0) {
3848                 unsigned int i;
3849                 char *buf, *end, *pos;
3850
3851                 if (!cred->num_excluded_ssid)
3852                         return NULL;
3853
3854                 buf = os_malloc(4000);
3855                 if (buf == NULL)
3856                         return NULL;
3857                 pos = buf;
3858                 end = pos + 4000;
3859
3860                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3861                         struct excluded_ssid *e;
3862                         int ret;
3863
3864                         e = &cred->excluded_ssid[i];
3865                         ret = os_snprintf(pos, end - pos, "%s%s",
3866                                           i > 0 ? "\n" : "",
3867                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3868                         if (os_snprintf_error(end - pos, ret))
3869                                 return buf;
3870                         pos += ret;
3871                 }
3872
3873                 return buf;
3874         }
3875
3876         if (os_strcmp(var, "roaming_partner") == 0) {
3877                 unsigned int i;
3878                 char *buf, *end, *pos;
3879
3880                 if (!cred->num_roaming_partner)
3881                         return NULL;
3882
3883                 buf = os_malloc(4000);
3884                 if (buf == NULL)
3885                         return NULL;
3886                 pos = buf;
3887                 end = pos + 4000;
3888
3889                 for (i = 0; i < cred->num_roaming_partner; i++) {
3890                         struct roaming_partner *p;
3891                         int ret;
3892
3893                         p = &cred->roaming_partner[i];
3894                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3895                                           i > 0 ? "\n" : "",
3896                                           p->fqdn, p->exact_match, p->priority,
3897                                           p->country);
3898                         if (os_snprintf_error(end - pos, ret))
3899                                 return buf;
3900                         pos += ret;
3901                 }
3902
3903                 return buf;
3904         }
3905
3906         if (os_strcmp(var, "provisioning_sp") == 0)
3907                 return alloc_strdup(cred->provisioning_sp);
3908
3909         return NULL;
3910 }
3911
3912
3913 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3914 {
3915         struct wpa_cred *cred;
3916
3917         cred = config->cred;
3918         while (cred) {
3919                 if (id == cred->id)
3920                         break;
3921                 cred = cred->next;
3922         }
3923
3924         return cred;
3925 }
3926
3927
3928 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3929 {
3930         int id;
3931         struct wpa_cred *cred, *last = NULL;
3932
3933         id = -1;
3934         cred = config->cred;
3935         while (cred) {
3936                 if (cred->id > id)
3937                         id = cred->id;
3938                 last = cred;
3939                 cred = cred->next;
3940         }
3941         id++;
3942
3943         cred = os_zalloc(sizeof(*cred));
3944         if (cred == NULL)
3945                 return NULL;
3946         cred->id = id;
3947         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3948         if (last)
3949                 last->next = cred;
3950         else
3951                 config->cred = cred;
3952
3953         return cred;
3954 }
3955
3956
3957 int wpa_config_remove_cred(struct wpa_config *config, int id)
3958 {
3959         struct wpa_cred *cred, *prev = NULL;
3960
3961         cred = config->cred;
3962         while (cred) {
3963                 if (id == cred->id)
3964                         break;
3965                 prev = cred;
3966                 cred = cred->next;
3967         }
3968
3969         if (cred == NULL)
3970                 return -1;
3971
3972         if (prev)
3973                 prev->next = cred->next;
3974         else
3975                 config->cred = cred->next;
3976
3977         wpa_config_free_cred(cred);
3978         return 0;
3979 }
3980
3981
3982 #ifndef CONFIG_NO_CONFIG_BLOBS
3983 /**
3984  * wpa_config_get_blob - Get a named configuration blob
3985  * @config: Configuration data from wpa_config_read()
3986  * @name: Name of the blob
3987  * Returns: Pointer to blob data or %NULL if not found
3988  */
3989 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3990                                                    const char *name)
3991 {
3992         struct wpa_config_blob *blob = config->blobs;
3993
3994         while (blob) {
3995                 if (os_strcmp(blob->name, name) == 0)
3996                         return blob;
3997                 blob = blob->next;
3998         }
3999         return NULL;
4000 }
4001
4002
4003 /**
4004  * wpa_config_set_blob - Set or add a named configuration blob
4005  * @config: Configuration data from wpa_config_read()
4006  * @blob: New value for the blob
4007  *
4008  * Adds a new configuration blob or replaces the current value of an existing
4009  * blob.
4010  */
4011 void wpa_config_set_blob(struct wpa_config *config,
4012                          struct wpa_config_blob *blob)
4013 {
4014         wpa_config_remove_blob(config, blob->name);
4015         blob->next = config->blobs;
4016         config->blobs = blob;
4017 }
4018
4019
4020 /**
4021  * wpa_config_free_blob - Free blob data
4022  * @blob: Pointer to blob to be freed
4023  */
4024 void wpa_config_free_blob(struct wpa_config_blob *blob)
4025 {
4026         if (blob) {
4027                 os_free(blob->name);
4028                 bin_clear_free(blob->data, blob->len);
4029                 os_free(blob);
4030         }
4031 }
4032
4033
4034 /**
4035  * wpa_config_remove_blob - Remove a named configuration blob
4036  * @config: Configuration data from wpa_config_read()
4037  * @name: Name of the blob to remove
4038  * Returns: 0 if blob was removed or -1 if blob was not found
4039  */
4040 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
4041 {
4042         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
4043
4044         while (pos) {
4045                 if (os_strcmp(pos->name, name) == 0) {
4046                         if (prev)
4047                                 prev->next = pos->next;
4048                         else
4049                                 config->blobs = pos->next;
4050                         wpa_config_free_blob(pos);
4051                         return 0;
4052                 }
4053                 prev = pos;
4054                 pos = pos->next;
4055         }
4056
4057         return -1;
4058 }
4059 #endif /* CONFIG_NO_CONFIG_BLOBS */
4060
4061
4062 /**
4063  * wpa_config_alloc_empty - Allocate an empty configuration
4064  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
4065  * socket
4066  * @driver_param: Driver parameters
4067  * Returns: Pointer to allocated configuration data or %NULL on failure
4068  */
4069 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
4070                                            const char *driver_param)
4071 {
4072         struct wpa_config *config;
4073         const int aCWmin = 4, aCWmax = 10;
4074         const struct hostapd_wmm_ac_params ac_bk =
4075                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
4076         const struct hostapd_wmm_ac_params ac_be =
4077                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
4078         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
4079                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
4080         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
4081                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
4082
4083         config = os_zalloc(sizeof(*config));
4084         if (config == NULL)
4085                 return NULL;
4086         config->eapol_version = DEFAULT_EAPOL_VERSION;
4087         config->ap_scan = DEFAULT_AP_SCAN;
4088         config->user_mpm = DEFAULT_USER_MPM;
4089         config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
4090         config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
4091         config->dot11RSNASAERetransPeriod =
4092                 DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD;
4093         config->fast_reauth = DEFAULT_FAST_REAUTH;
4094         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
4095         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
4096         config->p2p_go_freq_change_policy = DEFAULT_P2P_GO_FREQ_MOVE;
4097         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
4098         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
4099         config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
4100         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
4101         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
4102         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
4103         config->max_num_sta = DEFAULT_MAX_NUM_STA;
4104         config->ap_isolate = DEFAULT_AP_ISOLATE;
4105         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
4106         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
4107         config->wmm_ac_params[0] = ac_be;
4108         config->wmm_ac_params[1] = ac_bk;
4109         config->wmm_ac_params[2] = ac_vi;
4110         config->wmm_ac_params[3] = ac_vo;
4111         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
4112         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4113         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
4114         config->cert_in_cb = DEFAULT_CERT_IN_CB;
4115         config->wpa_rsc_relaxation = DEFAULT_WPA_RSC_RELAXATION;
4116
4117 #ifdef CONFIG_MBO
4118         config->mbo_cell_capa = DEFAULT_MBO_CELL_CAPA;
4119         config->disassoc_imminent_rssi_threshold =
4120                 DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD;
4121         config->oce = DEFAULT_OCE_SUPPORT;
4122 #endif /* CONFIG_MBO */
4123
4124         if (ctrl_interface)
4125                 config->ctrl_interface = os_strdup(ctrl_interface);
4126         if (driver_param)
4127                 config->driver_param = os_strdup(driver_param);
4128         config->gas_rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
4129
4130         return config;
4131 }
4132
4133
4134 #ifndef CONFIG_NO_STDOUT_DEBUG
4135 /**
4136  * wpa_config_debug_dump_networks - Debug dump of configured networks
4137  * @config: Configuration data from wpa_config_read()
4138  */
4139 void wpa_config_debug_dump_networks(struct wpa_config *config)
4140 {
4141         int prio;
4142         struct wpa_ssid *ssid;
4143
4144         for (prio = 0; prio < config->num_prio; prio++) {
4145                 ssid = config->pssid[prio];
4146                 wpa_printf(MSG_DEBUG, "Priority group %d",
4147                            ssid->priority);
4148                 while (ssid) {
4149                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
4150                                    ssid->id,
4151                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
4152                         ssid = ssid->pnext;
4153                 }
4154         }
4155 }
4156 #endif /* CONFIG_NO_STDOUT_DEBUG */
4157
4158
4159 struct global_parse_data {
4160         char *name;
4161         int (*parser)(const struct global_parse_data *data,
4162                       struct wpa_config *config, int line, const char *value);
4163         int (*get)(const char *name, struct wpa_config *config, long offset,
4164                    char *buf, size_t buflen, int pretty_print);
4165         void *param1, *param2, *param3;
4166         unsigned int changed_flag;
4167 };
4168
4169
4170 static int wpa_global_config_parse_int(const struct global_parse_data *data,
4171                                        struct wpa_config *config, int line,
4172                                        const char *pos)
4173 {
4174         int val, *dst;
4175         char *end;
4176
4177         dst = (int *) (((u8 *) config) + (long) data->param1);
4178         val = strtol(pos, &end, 0);
4179         if (*end) {
4180                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
4181                            line, pos);
4182                 return -1;
4183         }
4184         *dst = val;
4185
4186         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
4187
4188         if (data->param2 && *dst < (long) data->param2) {
4189                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
4190                            "min_value=%ld)", line, data->name, *dst,
4191                            (long) data->param2);
4192                 *dst = (long) data->param2;
4193                 return -1;
4194         }
4195
4196         if (data->param3 && *dst > (long) data->param3) {
4197                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
4198                            "max_value=%ld)", line, data->name, *dst,
4199                            (long) data->param3);
4200                 *dst = (long) data->param3;
4201                 return -1;
4202         }
4203
4204         return 0;
4205 }
4206
4207
4208 static int wpa_global_config_parse_str(const struct global_parse_data *data,
4209                                        struct wpa_config *config, int line,
4210                                        const char *pos)
4211 {
4212         size_t len;
4213         char **dst, *tmp;
4214
4215         len = os_strlen(pos);
4216         if (data->param2 && len < (size_t) data->param2) {
4217                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
4218                            "min_len=%ld)", line, data->name,
4219                            (unsigned long) len, (long) data->param2);
4220                 return -1;
4221         }
4222
4223         if (data->param3 && len > (size_t) data->param3) {
4224                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
4225                            "max_len=%ld)", line, data->name,
4226                            (unsigned long) len, (long) data->param3);
4227                 return -1;
4228         }
4229
4230         if (has_newline(pos)) {
4231                 wpa_printf(MSG_ERROR, "Line %d: invalid %s value with newline",
4232                            line, data->name);
4233                 return -1;
4234         }
4235
4236         tmp = os_strdup(pos);
4237         if (tmp == NULL)
4238                 return -1;
4239
4240         dst = (char **) (((u8 *) config) + (long) data->param1);
4241         os_free(*dst);
4242         *dst = tmp;
4243         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
4244
4245         return 0;
4246 }
4247
4248
4249 static int wpa_config_process_bgscan(const struct global_parse_data *data,
4250                                      struct wpa_config *config, int line,
4251                                      const char *pos)
4252 {
4253         size_t len;
4254         char *tmp;
4255         int res;
4256
4257         tmp = wpa_config_parse_string(pos, &len);
4258         if (tmp == NULL) {
4259                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
4260                            line, data->name);
4261                 return -1;
4262         }
4263
4264         res = wpa_global_config_parse_str(data, config, line, tmp);
4265         os_free(tmp);
4266         return res;
4267 }
4268
4269
4270 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
4271                                        struct wpa_config *config, int line,
4272                                        const char *pos)
4273 {
4274         struct wpabuf **dst, *tmp;
4275
4276         tmp = wpabuf_parse_bin(pos);
4277         if (!tmp)
4278                 return -1;
4279
4280         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
4281         wpabuf_free(*dst);
4282         *dst = tmp;
4283         wpa_printf(MSG_DEBUG, "%s", data->name);
4284
4285         return 0;
4286 }
4287
4288
4289 static int wpa_config_process_freq_list(const struct global_parse_data *data,
4290                                         struct wpa_config *config, int line,
4291                                         const char *value)
4292 {
4293         int *freqs;
4294
4295         freqs = wpa_config_parse_int_array(value);
4296         if (freqs == NULL)
4297                 return -1;
4298         if (freqs[0] == 0) {
4299                 os_free(freqs);
4300                 freqs = NULL;
4301         }
4302         os_free(config->freq_list);
4303         config->freq_list = freqs;
4304         return 0;
4305 }
4306
4307
4308 #ifdef CONFIG_P2P
4309 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
4310                                         struct wpa_config *config, int line,
4311                                         const char *pos)
4312 {
4313         u32 *dst;
4314         struct hostapd_ip_addr addr;
4315
4316         if (hostapd_parse_ip_addr(pos, &addr) < 0)
4317                 return -1;
4318         if (addr.af != AF_INET)
4319                 return -1;
4320
4321         dst = (u32 *) (((u8 *) config) + (long) data->param1);
4322         os_memcpy(dst, &addr.u.v4.s_addr, 4);
4323         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
4324                    WPA_GET_BE32((u8 *) dst));
4325
4326         return 0;
4327 }
4328 #endif /* CONFIG_P2P */
4329
4330
4331 static int wpa_config_process_country(const struct global_parse_data *data,
4332                                       struct wpa_config *config, int line,
4333                                       const char *pos)
4334 {
4335         if (!pos[0] || !pos[1]) {
4336                 wpa_printf(MSG_DEBUG, "Invalid country set");
4337                 return -1;
4338         }
4339         config->country[0] = pos[0];
4340         config->country[1] = pos[1];
4341         wpa_printf(MSG_DEBUG, "country='%c%c'",
4342                    config->country[0], config->country[1]);
4343         return 0;
4344 }
4345
4346
4347 static int wpa_config_process_load_dynamic_eap(
4348         const struct global_parse_data *data, struct wpa_config *config,
4349         int line, const char *so)
4350 {
4351         int ret;
4352         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
4353         ret = eap_peer_method_load(so);
4354         if (ret == -2) {
4355                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
4356                            "reloading.");
4357         } else if (ret) {
4358                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
4359                            "method '%s'.", line, so);
4360                 return -1;
4361         }
4362
4363         return 0;
4364 }
4365
4366
4367 #ifdef CONFIG_WPS
4368
4369 static int wpa_config_process_uuid(const struct global_parse_data *data,
4370                                    struct wpa_config *config, int line,
4371                                    const char *pos)
4372 {
4373         char buf[40];
4374         if (uuid_str2bin(pos, config->uuid)) {
4375                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
4376                 return -1;
4377         }
4378         uuid_bin2str(config->uuid, buf, sizeof(buf));
4379         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
4380         return 0;
4381 }
4382
4383
4384 static int wpa_config_process_device_type(
4385         const struct global_parse_data *data,
4386         struct wpa_config *config, int line, const char *pos)
4387 {
4388         return wps_dev_type_str2bin(pos, config->device_type);
4389 }
4390
4391
4392 static int wpa_config_process_os_version(const struct global_parse_data *data,
4393                                          struct wpa_config *config, int line,
4394                                          const char *pos)
4395 {
4396         if (hexstr2bin(pos, config->os_version, 4)) {
4397                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
4398                 return -1;
4399         }
4400         wpa_printf(MSG_DEBUG, "os_version=%08x",
4401                    WPA_GET_BE32(config->os_version));
4402         return 0;
4403 }
4404
4405
4406 static int wpa_config_process_wps_vendor_ext_m1(
4407         const struct global_parse_data *data,
4408         struct wpa_config *config, int line, const char *pos)
4409 {
4410         struct wpabuf *tmp;
4411         int len = os_strlen(pos) / 2;
4412         u8 *p;
4413
4414         if (!len) {
4415                 wpa_printf(MSG_ERROR, "Line %d: "
4416                            "invalid wps_vendor_ext_m1", line);
4417                 return -1;
4418         }
4419
4420         tmp = wpabuf_alloc(len);
4421         if (tmp) {
4422                 p = wpabuf_put(tmp, len);
4423
4424                 if (hexstr2bin(pos, p, len)) {
4425                         wpa_printf(MSG_ERROR, "Line %d: "
4426                                    "invalid wps_vendor_ext_m1", line);
4427                         wpabuf_free(tmp);
4428                         return -1;
4429                 }
4430
4431                 wpabuf_free(config->wps_vendor_ext_m1);
4432                 config->wps_vendor_ext_m1 = tmp;
4433         } else {
4434                 wpa_printf(MSG_ERROR, "Can not allocate "
4435                            "memory for wps_vendor_ext_m1");
4436                 return -1;
4437         }
4438
4439         return 0;
4440 }
4441
4442 #endif /* CONFIG_WPS */
4443
4444 #ifdef CONFIG_P2P
4445 static int wpa_config_process_sec_device_type(
4446         const struct global_parse_data *data,
4447         struct wpa_config *config, int line, const char *pos)
4448 {
4449         int idx;
4450
4451         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
4452                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
4453                            "items", line);
4454                 return -1;
4455         }
4456
4457         idx = config->num_sec_device_types;
4458
4459         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
4460                 return -1;
4461
4462         config->num_sec_device_types++;
4463         return 0;
4464 }
4465
4466
4467 static int wpa_config_process_p2p_pref_chan(
4468         const struct global_parse_data *data,
4469         struct wpa_config *config, int line, const char *pos)
4470 {
4471         struct p2p_channel *pref = NULL, *n;
4472         unsigned int num = 0;
4473         const char *pos2;
4474         u8 op_class, chan;
4475
4476         /* format: class:chan,class:chan,... */
4477
4478         while (*pos) {
4479                 op_class = atoi(pos);
4480                 pos2 = os_strchr(pos, ':');
4481                 if (pos2 == NULL)
4482                         goto fail;
4483                 pos2++;
4484                 chan = atoi(pos2);
4485
4486                 n = os_realloc_array(pref, num + 1,
4487                                      sizeof(struct p2p_channel));
4488                 if (n == NULL)
4489                         goto fail;
4490                 pref = n;
4491                 pref[num].op_class = op_class;
4492                 pref[num].chan = chan;
4493                 num++;
4494
4495                 pos = os_strchr(pos2, ',');
4496                 if (pos == NULL)
4497                         break;
4498                 pos++;
4499         }
4500
4501         os_free(config->p2p_pref_chan);
4502         config->p2p_pref_chan = pref;
4503         config->num_p2p_pref_chan = num;
4504         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
4505                     (u8 *) config->p2p_pref_chan,
4506                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
4507
4508         return 0;
4509
4510 fail:
4511         os_free(pref);
4512         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
4513         return -1;
4514 }
4515
4516
4517 static int wpa_config_process_p2p_no_go_freq(
4518         const struct global_parse_data *data,
4519         struct wpa_config *config, int line, const char *pos)
4520 {
4521         int ret;
4522
4523         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
4524         if (ret < 0) {
4525                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
4526                 return -1;
4527         }
4528
4529         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
4530                    config->p2p_no_go_freq.num);
4531
4532         return 0;
4533 }
4534
4535
4536 static int wpa_config_process_p2p_device_persistent_mac_addr(
4537         const struct global_parse_data *data,
4538         struct wpa_config *config, int line, const char *pos)
4539 {
4540         if (hwaddr_aton2(pos, config->p2p_device_persistent_mac_addr) < 0) {
4541                 wpa_printf(MSG_ERROR,
4542                            "Line %d: Invalid p2p_device_persistent_mac_addr '%s'",
4543                            line, pos);
4544                 return -1;
4545         }
4546
4547         return 0;
4548 }
4549
4550 #endif /* CONFIG_P2P */
4551
4552
4553 static int wpa_config_process_hessid(
4554         const struct global_parse_data *data,
4555         struct wpa_config *config, int line, const char *pos)
4556 {
4557         if (hwaddr_aton2(pos, config->hessid) < 0) {
4558                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
4559                            line, pos);
4560                 return -1;
4561         }
4562
4563         return 0;
4564 }
4565
4566
4567 static int wpa_config_process_sae_groups(
4568         const struct global_parse_data *data,
4569         struct wpa_config *config, int line, const char *pos)
4570 {
4571         int *groups = wpa_config_parse_int_array(pos);
4572         if (groups == NULL) {
4573                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
4574                            line, pos);
4575                 return -1;
4576         }
4577
4578         os_free(config->sae_groups);
4579         config->sae_groups = groups;
4580
4581         return 0;
4582 }
4583
4584
4585 static int wpa_config_process_ap_vendor_elements(
4586         const struct global_parse_data *data,
4587         struct wpa_config *config, int line, const char *pos)
4588 {
4589         struct wpabuf *tmp;
4590         int len = os_strlen(pos) / 2;
4591         u8 *p;
4592
4593         if (!len) {
4594                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
4595                            line);
4596                 return -1;
4597         }
4598
4599         tmp = wpabuf_alloc(len);
4600         if (tmp) {
4601                 p = wpabuf_put(tmp, len);
4602
4603                 if (hexstr2bin(pos, p, len)) {
4604                         wpa_printf(MSG_ERROR, "Line %d: invalid "
4605                                    "ap_vendor_elements", line);
4606                         wpabuf_free(tmp);
4607                         return -1;
4608                 }
4609
4610                 wpabuf_free(config->ap_vendor_elements);
4611                 config->ap_vendor_elements = tmp;
4612         } else {
4613                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4614                            "ap_vendor_elements");
4615                 return -1;
4616         }
4617
4618         return 0;
4619 }
4620
4621
4622 #ifdef CONFIG_CTRL_IFACE
4623 static int wpa_config_process_no_ctrl_interface(
4624         const struct global_parse_data *data,
4625         struct wpa_config *config, int line, const char *pos)
4626 {
4627         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4628         os_free(config->ctrl_interface);
4629         config->ctrl_interface = NULL;
4630         return 0;
4631 }
4632 #endif /* CONFIG_CTRL_IFACE */
4633
4634
4635 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4636                               long offset, char *buf, size_t buflen,
4637                               int pretty_print)
4638 {
4639         int *val = (int *) (((u8 *) config) + (long) offset);
4640
4641         if (pretty_print)
4642                 return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4643         return os_snprintf(buf, buflen, "%d", *val);
4644 }
4645
4646
4647 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4648                               long offset, char *buf, size_t buflen,
4649                               int pretty_print)
4650 {
4651         char **val = (char **) (((u8 *) config) + (long) offset);
4652         int res;
4653
4654         if (pretty_print)
4655                 res = os_snprintf(buf, buflen, "%s=%s\n", name,
4656                                   *val ? *val : "null");
4657         else if (!*val)
4658                 return -1;
4659         else
4660                 res = os_snprintf(buf, buflen, "%s", *val);
4661         if (os_snprintf_error(buflen, res))
4662                 res = -1;
4663
4664         return res;
4665 }
4666
4667
4668 #ifdef CONFIG_P2P
4669 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4670                                long offset, char *buf, size_t buflen,
4671                                int pretty_print)
4672 {
4673         void *val = ((u8 *) config) + (long) offset;
4674         int res;
4675         char addr[INET_ADDRSTRLEN];
4676
4677         if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4678                 return -1;
4679
4680         if (pretty_print)
4681                 res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4682         else
4683                 res = os_snprintf(buf, buflen, "%s", addr);
4684
4685         if (os_snprintf_error(buflen, res))
4686                 res = -1;
4687
4688         return res;
4689 }
4690 #endif /* CONFIG_P2P */
4691
4692
4693 #ifdef OFFSET
4694 #undef OFFSET
4695 #endif /* OFFSET */
4696 /* OFFSET: Get offset of a variable within the wpa_config structure */
4697 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4698
4699 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4700 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4701 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4702 #define INT(f) _INT(f), NULL, NULL
4703 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4704 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4705 #define STR(f) _STR(f), NULL, NULL
4706 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4707 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4708 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4,  \
4709         OFFSET(f), NULL, NULL
4710
4711 static const struct global_parse_data global_fields[] = {
4712 #ifdef CONFIG_CTRL_IFACE
4713         { STR(ctrl_interface), 0 },
4714         { FUNC_NO_VAR(no_ctrl_interface), 0 },
4715         { STR(ctrl_interface_group), 0 } /* deprecated */,
4716 #endif /* CONFIG_CTRL_IFACE */
4717 #ifdef CONFIG_MACSEC
4718         { INT_RANGE(eapol_version, 1, 3), 0 },
4719 #else /* CONFIG_MACSEC */
4720         { INT_RANGE(eapol_version, 1, 2), 0 },
4721 #endif /* CONFIG_MACSEC */
4722         { INT(ap_scan), 0 },
4723         { FUNC(bgscan), 0 },
4724 #ifdef CONFIG_MESH
4725         { INT(user_mpm), 0 },
4726         { INT_RANGE(max_peer_links, 0, 255), 0 },
4727         { INT(mesh_max_inactivity), 0 },
4728         { INT(dot11RSNASAERetransPeriod), 0 },
4729 #endif /* CONFIG_MESH */
4730         { INT(disable_scan_offload), 0 },
4731         { INT(fast_reauth), 0 },
4732         { STR(opensc_engine_path), 0 },
4733         { STR(pkcs11_engine_path), 0 },
4734         { STR(pkcs11_module_path), 0 },
4735         { STR(openssl_ciphers), 0 },
4736         { STR(pcsc_reader), 0 },
4737         { STR(pcsc_pin), 0 },
4738         { INT(external_sim), 0 },
4739         { STR(driver_param), 0 },
4740         { INT(dot11RSNAConfigPMKLifetime), 0 },
4741         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4742         { INT(dot11RSNAConfigSATimeout), 0 },
4743 #ifndef CONFIG_NO_CONFIG_WRITE
4744         { INT(update_config), 0 },
4745 #endif /* CONFIG_NO_CONFIG_WRITE */
4746         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4747 #ifdef CONFIG_WPS
4748         { FUNC(uuid), CFG_CHANGED_UUID },
4749         { INT_RANGE(auto_uuid, 0, 1), 0 },
4750         { STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4751           CFG_CHANGED_DEVICE_NAME },
4752         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4753         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4754         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4755         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4756         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4757         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4758         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4759         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4760         { INT_RANGE(wps_cred_add_sae, 0, 1), 0 },
4761         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4762 #endif /* CONFIG_WPS */
4763 #ifdef CONFIG_P2P
4764         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4765         { INT(p2p_listen_reg_class), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4766         { INT(p2p_listen_channel), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4767         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4768         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4769         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4770         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4771         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4772         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4773         { INT(p2p_group_idle), 0 },
4774         { INT_RANGE(p2p_go_freq_change_policy, 0, P2P_GO_FREQ_MOVE_MAX), 0 },
4775         { INT_RANGE(p2p_passphrase_len, 8, 63),
4776           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4777         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4778         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4779         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4780         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4781         { INT(p2p_go_ht40), 0 },
4782         { INT(p2p_go_vht), 0 },
4783         { INT(p2p_go_he), 0 },
4784         { INT(p2p_disabled), 0 },
4785         { INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4786         { INT(p2p_no_group_iface), 0 },
4787         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4788         { IPV4(ip_addr_go), 0 },
4789         { IPV4(ip_addr_mask), 0 },
4790         { IPV4(ip_addr_start), 0 },
4791         { IPV4(ip_addr_end), 0 },
4792         { INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4793         { INT(p2p_device_random_mac_addr), 0 },
4794         { FUNC(p2p_device_persistent_mac_addr), 0 },
4795         { INT(p2p_interface_random_mac_addr), 0 },
4796 #endif /* CONFIG_P2P */
4797         { FUNC(country), CFG_CHANGED_COUNTRY },
4798         { INT(bss_max_count), 0 },
4799         { INT(bss_expiration_age), 0 },
4800         { INT(bss_expiration_scan_count), 0 },
4801         { INT_RANGE(filter_ssids, 0, 1), 0 },
4802         { INT_RANGE(filter_rssi, -100, 0), 0 },
4803         { INT(max_num_sta), 0 },
4804         { INT_RANGE(ap_isolate, 0, 1), 0 },
4805         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4806 #ifdef CONFIG_HS20
4807         { INT_RANGE(hs20, 0, 1), 0 },
4808 #endif /* CONFIG_HS20 */
4809         { INT_RANGE(interworking, 0, 1), 0 },
4810         { FUNC(hessid), 0 },
4811         { INT_RANGE(access_network_type, 0, 15), 0 },
4812         { INT_RANGE(go_interworking, 0, 1), 0 },
4813         { INT_RANGE(go_access_network_type, 0, 15), 0 },
4814         { INT_RANGE(go_internet, 0, 1), 0 },
4815         { INT_RANGE(go_venue_group, 0, 255), 0 },
4816         { INT_RANGE(go_venue_type, 0, 255), 0 },
4817         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4818         { STR(autoscan), 0 },
4819         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4820           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4821         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4822         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4823         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4824         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4825         { INT(p2p_go_max_inactivity), 0 },
4826         { INT_RANGE(auto_interworking, 0, 1), 0 },
4827         { INT(okc), 0 },
4828         { INT(pmf), 0 },
4829         { FUNC(sae_groups), 0 },
4830         { INT(dtim_period), 0 },
4831         { INT(beacon_int), 0 },
4832         { FUNC(ap_vendor_elements), 0 },
4833         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4834         { FUNC(freq_list), 0 },
4835         { INT(scan_cur_freq), 0 },
4836         { INT(sched_scan_interval), 0 },
4837         { INT(sched_scan_start_delay), 0 },
4838         { INT(tdls_external_control), 0},
4839         { STR(osu_dir), 0 },
4840         { STR(wowlan_triggers), CFG_CHANGED_WOWLAN_TRIGGERS },
4841         { INT(p2p_search_delay), 0},
4842         { INT(mac_addr), 0 },
4843         { INT(rand_addr_lifetime), 0 },
4844         { INT(preassoc_mac_addr), 0 },
4845         { INT(key_mgmt_offload), 0},
4846         { INT(passive_scan), 0 },
4847         { INT(reassoc_same_bss_optim), 0 },
4848         { INT(wps_priority), 0},
4849 #ifdef CONFIG_FST
4850         { STR_RANGE(fst_group_id, 1, FST_MAX_GROUP_ID_LEN), 0 },
4851         { INT_RANGE(fst_priority, 1, FST_MAX_PRIO_VALUE), 0 },
4852         { INT_RANGE(fst_llt, 1, FST_MAX_LLT_MS), 0 },
4853 #endif /* CONFIG_FST */
4854         { INT_RANGE(cert_in_cb, 0, 1), 0 },
4855         { INT_RANGE(wpa_rsc_relaxation, 0, 1), 0 },
4856         { STR(sched_scan_plans), CFG_CHANGED_SCHED_SCAN_PLANS },
4857 #ifdef CONFIG_MBO
4858         { STR(non_pref_chan), 0 },
4859         { INT_RANGE(mbo_cell_capa, MBO_CELL_CAPA_AVAILABLE,
4860                     MBO_CELL_CAPA_NOT_SUPPORTED), 0 },
4861         { INT_RANGE(disassoc_imminent_rssi_threshold, -120, 0), 0 },
4862         { INT_RANGE(oce, 0, 3), 0 },
4863 #endif /* CONFIG_MBO */
4864         { INT(gas_address3), 0 },
4865         { INT_RANGE(ftm_responder, 0, 1), 0 },
4866         { INT_RANGE(ftm_initiator, 0, 1), 0 },
4867         { INT(gas_rand_addr_lifetime), 0 },
4868         { INT_RANGE(gas_rand_mac_addr, 0, 2), 0 },
4869         { INT_RANGE(dpp_config_processing, 0, 2), 0 },
4870         { INT_RANGE(coloc_intf_reporting, 0, 1), 0 },
4871 };
4872
4873 #undef FUNC
4874 #undef _INT
4875 #undef INT
4876 #undef INT_RANGE
4877 #undef _STR
4878 #undef STR
4879 #undef STR_RANGE
4880 #undef BIN
4881 #undef IPV4
4882 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4883
4884
4885 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4886 {
4887         int result = 0;
4888         size_t i;
4889
4890         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4891                 const struct global_parse_data *field = &global_fields[i];
4892                 int tmp;
4893
4894                 if (!field->get)
4895                         continue;
4896
4897                 tmp = field->get(field->name, config, (long) field->param1,
4898                                  buf, buflen, 1);
4899                 if (tmp < 0)
4900                         return -1;
4901                 buf += tmp;
4902                 buflen -= tmp;
4903                 result += tmp;
4904         }
4905         return result;
4906 }
4907
4908
4909 int wpa_config_get_value(const char *name, struct wpa_config *config,
4910                          char *buf, size_t buflen)
4911 {
4912         size_t i;
4913
4914         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4915                 const struct global_parse_data *field = &global_fields[i];
4916
4917                 if (os_strcmp(name, field->name) != 0)
4918                         continue;
4919                 if (!field->get)
4920                         break;
4921                 return field->get(name, config, (long) field->param1,
4922                                   buf, buflen, 0);
4923         }
4924
4925         return -1;
4926 }
4927
4928
4929 int wpa_config_get_num_global_field_names(void)
4930 {
4931         return NUM_GLOBAL_FIELDS;
4932 }
4933
4934
4935 const char * wpa_config_get_global_field_name(unsigned int i, int *no_var)
4936 {
4937         if (i >= NUM_GLOBAL_FIELDS)
4938                 return NULL;
4939
4940         if (no_var)
4941                 *no_var = !global_fields[i].param1;
4942         return global_fields[i].name;
4943 }
4944
4945
4946 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4947 {
4948         size_t i;
4949         int ret = 0;
4950
4951         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4952                 const struct global_parse_data *field = &global_fields[i];
4953                 size_t flen = os_strlen(field->name);
4954                 if (os_strncmp(pos, field->name, flen) != 0 ||
4955                     pos[flen] != '=')
4956                         continue;
4957
4958                 if (field->parser(field, config, line, pos + flen + 1)) {
4959                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4960                                    "parse '%s'.", line, pos);
4961                         ret = -1;
4962                 }
4963                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4964                         config->wps_nfc_pw_from_config = 1;
4965                 config->changed_parameters |= field->changed_flag;
4966                 break;
4967         }
4968         if (i == NUM_GLOBAL_FIELDS) {
4969 #ifdef CONFIG_AP
4970                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4971                         char *tmp = os_strchr(pos, '=');
4972                         if (tmp == NULL) {
4973                                 if (line < 0)
4974                                         return -1;
4975                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4976                                            "'%s'", line, pos);
4977                                 return -1;
4978                         }
4979                         *tmp++ = '\0';
4980                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4981                                                   tmp)) {
4982                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4983                                            "AC item", line);
4984                                 return -1;
4985                         }
4986                 }
4987 #endif /* CONFIG_AP */
4988                 if (line < 0)
4989                         return -1;
4990                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4991                            line, pos);
4992                 ret = -1;
4993         }
4994
4995         return ret;
4996 }