wpa_supplicant/config.c

   1 /*
   2  * WPA Supplicant / Configuration parser and common functions
   3  * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "utils/uuid.h"
  13 #include "utils/ip_addr.h"
  14 #include "crypto/sha1.h"
  15 #include "rsn_supp/wpa.h"
  16 #include "eap_peer/eap.h"
  17 #include "p2p/p2p.h"
  18 #include "fst/fst.h"
  19 #include "config.h"
  20
  21
  22 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
  23 #define NO_CONFIG_WRITE
  24 #endif
  25
  26 /*
  27  * Structure for network configuration parsing. This data is used to implement
  28  * a generic parser for each network block variable. The table of configuration
  29  * variables is defined below in this file (ssid_fields[]).
  30  */
  31 struct parse_data {
  32         /* Configuration variable name */
  33         char *name;
  34
  35         /* Parser function for this variable. The parser functions return 0 or 1
  36          * to indicate success. Value 0 indicates that the parameter value may
  37          * have changed while value 1 means that the value did not change.
  38          * Error cases (failure to parse the string) are indicated by returning
  39          * -1. */
  40         int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
  41                       int line, const char *value);
  42
  43 #ifndef NO_CONFIG_WRITE
  44         /* Writer function (i.e., to get the variable in text format from
  45          * internal presentation). */
  46         char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
  47 #endif /* NO_CONFIG_WRITE */
  48
  49         /* Variable specific parameters for the parser. */
  50         void *param1, *param2, *param3, *param4;
  51
  52         /* 0 = this variable can be included in debug output and ctrl_iface
  53          * 1 = this variable contains key/private data and it must not be
  54          *     included in debug output unless explicitly requested. In
  55          *     addition, this variable will not be readable through the
  56          *     ctrl_iface.
  57          */
  58         int key_data;
  59 };
  60
  61
  62 static int wpa_config_parse_str(const struct parse_data *data,
  63                                 struct wpa_ssid *ssid,
  64                                 int line, const char *value)
  65 {
  66         size_t res_len, *dst_len, prev_len;
  67         char **dst, *tmp;
  68
  69         if (os_strcmp(value, "NULL") == 0) {
  70                 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
  71                            data->name);
  72                 tmp = NULL;
  73                 res_len = 0;
  74                 goto set;
  75         }
  76
  77         tmp = wpa_config_parse_string(value, &res_len);
  78         if (tmp == NULL) {
  79                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
  80                            line, data->name,
  81                            data->key_data ? "[KEY DATA REMOVED]" : value);
  82                 return -1;
  83         }
  84
  85         if (data->key_data) {
  86                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
  87                                       (u8 *) tmp, res_len);
  88         } else {
  89                 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
  90                                   (u8 *) tmp, res_len);
  91         }
  92
  93         if (data->param3 && res_len < (size_t) data->param3) {
  94                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
  95                            "min_len=%ld)", line, data->name,
  96                            (unsigned long) res_len, (long) data->param3);
  97                 os_free(tmp);
  98                 return -1;
  99         }
 100
 101         if (data->param4 && res_len > (size_t) data->param4) {
 102                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
 103                            "max_len=%ld)", line, data->name,
 104                            (unsigned long) res_len, (long) data->param4);
 105                 os_free(tmp);
 106                 return -1;
 107         }
 108
 109 set:
 110         dst = (char **) (((u8 *) ssid) + (long) data->param1);
 111         dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
 112
 113         if (data->param2)
 114                 prev_len = *dst_len;
 115         else if (*dst)
 116                 prev_len = os_strlen(*dst);
 117         else
 118                 prev_len = 0;
 119         if ((*dst == NULL && tmp == NULL) ||
 120             (*dst && tmp && prev_len == res_len &&
 121              os_memcmp(*dst, tmp, res_len) == 0)) {
 122                 /* No change to the previously configured value */
 123                 os_free(tmp);
 124                 return 1;
 125         }
 126
 127         os_free(*dst);
 128         *dst = tmp;
 129         if (data->param2)
 130                 *dst_len = res_len;
 131
 132         return 0;
 133 }
 134
 135
 136 #ifndef NO_CONFIG_WRITE
 137 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
 138 {
 139         char *buf;
 140
 141         buf = os_malloc(len + 3);
 142         if (buf == NULL)
 143                 return NULL;
 144         buf[0] = '"';
 145         os_memcpy(buf + 1, value, len);
 146         buf[len + 1] = '"';
 147         buf[len + 2] = '\0';
 148
 149         return buf;
 150 }
 151
 152
 153 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
 154 {
 155         char *buf;
 156
 157         buf = os_zalloc(2 * len + 1);
 158         if (buf == NULL)
 159                 return NULL;
 160         wpa_snprintf_hex(buf, 2 * len + 1, value, len);
 161
 162         return buf;
 163 }
 164
 165
 166 static char * wpa_config_write_string(const u8 *value, size_t len)
 167 {
 168         if (value == NULL)
 169                 return NULL;
 170
 171         if (is_hex(value, len))
 172                 return wpa_config_write_string_hex(value, len);
 173         else
 174                 return wpa_config_write_string_ascii(value, len);
 175 }
 176
 177
 178 static char * wpa_config_write_str(const struct parse_data *data,
 179                                    struct wpa_ssid *ssid)
 180 {
 181         size_t len;
 182         char **src;
 183
 184         src = (char **) (((u8 *) ssid) + (long) data->param1);
 185         if (*src == NULL)
 186                 return NULL;
 187
 188         if (data->param2)
 189                 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
 190         else
 191                 len = os_strlen(*src);
 192
 193         return wpa_config_write_string((const u8 *) *src, len);
 194 }
 195 #endif /* NO_CONFIG_WRITE */
 196
 197
 198 static int wpa_config_parse_int(const struct parse_data *data,
 199                                 struct wpa_ssid *ssid,
 200                                 int line, const char *value)
 201 {
 202         int val, *dst;
 203         char *end;
 204
 205         dst = (int *) (((u8 *) ssid) + (long) data->param1);
 206         val = strtol(value, &end, 0);
 207         if (*end) {
 208                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
 209                            line, value);
 210                 return -1;
 211         }
 212
 213         if (*dst == val)
 214                 return 1;
 215         *dst = val;
 216         wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
 217
 218         if (data->param3 && *dst < (long) data->param3) {
 219                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
 220                            "min_value=%ld)", line, data->name, *dst,
 221                            (long) data->param3);
 222                 *dst = (long) data->param3;
 223                 return -1;
 224         }
 225
 226         if (data->param4 && *dst > (long) data->param4) {
 227                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
 228                            "max_value=%ld)", line, data->name, *dst,
 229                            (long) data->param4);
 230                 *dst = (long) data->param4;
 231                 return -1;
 232         }
 233
 234         return 0;
 235 }
 236
 237
 238 #ifndef NO_CONFIG_WRITE
 239 static char * wpa_config_write_int(const struct parse_data *data,
 240                                    struct wpa_ssid *ssid)
 241 {
 242         int *src, res;
 243         char *value;
 244
 245         src = (int *) (((u8 *) ssid) + (long) data->param1);
 246
 247         value = os_malloc(20);
 248         if (value == NULL)
 249                 return NULL;
 250         res = os_snprintf(value, 20, "%d", *src);
 251         if (os_snprintf_error(20, res)) {
 252                 os_free(value);
 253                 return NULL;
 254         }
 255         value[20 - 1] = '\0';
 256         return value;
 257 }
 258 #endif /* NO_CONFIG_WRITE */
 259
 260
 261 static int wpa_config_parse_addr_list(const struct parse_data *data,
 262                                       int line, const char *value,
 263                                       u8 **list, size_t *num, char *name,
 264                                       u8 abort_on_error, u8 masked)
 265 {
 266         const char *pos;
 267         u8 *buf, *n, addr[2 * ETH_ALEN];
 268         size_t count;
 269
 270         buf = NULL;
 271         count = 0;
 272
 273         pos = value;
 274         while (pos && *pos) {
 275                 while (*pos == ' ')
 276                         pos++;
 277
 278                 if (hwaddr_masked_aton(pos, addr, &addr[ETH_ALEN], masked)) {
 279                         if (abort_on_error || count == 0) {
 280                                 wpa_printf(MSG_ERROR,
 281                                            "Line %d: Invalid %s address '%s'",
 282                                            line, name, value);
 283                                 os_free(buf);
 284                                 return -1;
 285                         }
 286                         /* continue anyway since this could have been from a
 287                          * truncated configuration file line */
 288                         wpa_printf(MSG_INFO,
 289                                    "Line %d: Ignore likely truncated %s address '%s'",
 290                                    line, name, pos);
 291                 } else {
 292                         n = os_realloc_array(buf, count + 1, 2 * ETH_ALEN);
 293                         if (n == NULL) {
 294                                 os_free(buf);
 295                                 return -1;
 296                         }
 297                         buf = n;
 298                         os_memmove(buf + 2 * ETH_ALEN, buf,
 299                                    count * 2 * ETH_ALEN);
 300                         os_memcpy(buf, addr, 2 * ETH_ALEN);
 301                         count++;
 302                         wpa_printf(MSG_MSGDUMP,
 303                                    "%s: addr=" MACSTR " mask=" MACSTR,
 304                                    name, MAC2STR(addr),
 305                                    MAC2STR(&addr[ETH_ALEN]));
 306                 }
 307
 308                 pos = os_strchr(pos, ' ');
 309         }
 310
 311         os_free(*list);
 312         *list = buf;
 313         *num = count;
 314
 315         return 0;
 316 }
 317
 318
 319 #ifndef NO_CONFIG_WRITE
 320 static char * wpa_config_write_addr_list(const struct parse_data *data,
 321                                          const u8 *list, size_t num, char *name)
 322 {
 323         char *value, *end, *pos;
 324         int res;
 325         size_t i;
 326
 327         if (list == NULL || num == 0)
 328                 return NULL;
 329
 330         value = os_malloc(2 * 20 * num);
 331         if (value == NULL)
 332                 return NULL;
 333         pos = value;
 334         end = value + 2 * 20 * num;
 335
 336         for (i = num; i > 0; i--) {
 337                 const u8 *a = list + (i - 1) * 2 * ETH_ALEN;
 338                 const u8 *m = a + ETH_ALEN;
 339
 340                 if (i < num)
 341                         *pos++ = ' ';
 342                 res = hwaddr_mask_txt(pos, end - pos, a, m);
 343                 if (res < 0) {
 344                         os_free(value);
 345                         return NULL;
 346                 }
 347                 pos += res;
 348         }
 349
 350         return value;
 351 }
 352 #endif /* NO_CONFIG_WRITE */
 353
 354 static int wpa_config_parse_bssid(const struct parse_data *data,
 355                                   struct wpa_ssid *ssid, int line,
 356                                   const char *value)
 357 {
 358         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
 359             os_strcmp(value, "any") == 0) {
 360                 ssid->bssid_set = 0;
 361                 wpa_printf(MSG_MSGDUMP, "BSSID any");
 362                 return 0;
 363         }
 364         if (hwaddr_aton(value, ssid->bssid)) {
 365                 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
 366                            line, value);
 367                 return -1;
 368         }
 369         ssid->bssid_set = 1;
 370         wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
 371         return 0;
 372 }
 373
 374
 375 #ifndef NO_CONFIG_WRITE
 376 static char * wpa_config_write_bssid(const struct parse_data *data,
 377                                      struct wpa_ssid *ssid)
 378 {
 379         char *value;
 380         int res;
 381
 382         if (!ssid->bssid_set)
 383                 return NULL;
 384
 385         value = os_malloc(20);
 386         if (value == NULL)
 387                 return NULL;
 388         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
 389         if (os_snprintf_error(20, res)) {
 390                 os_free(value);
 391                 return NULL;
 392         }
 393         value[20 - 1] = '\0';
 394         return value;
 395 }
 396 #endif /* NO_CONFIG_WRITE */
 397
 398
 399 static int wpa_config_parse_bssid_blacklist(const struct parse_data *data,
 400                                             struct wpa_ssid *ssid, int line,
 401                                             const char *value)
 402 {
 403         return wpa_config_parse_addr_list(data, line, value,
 404                                           &ssid->bssid_blacklist,
 405                                           &ssid->num_bssid_blacklist,
 406                                           "bssid_blacklist", 1, 1);
 407 }
 408
 409
 410 #ifndef NO_CONFIG_WRITE
 411 static char * wpa_config_write_bssid_blacklist(const struct parse_data *data,
 412                                                struct wpa_ssid *ssid)
 413 {
 414         return wpa_config_write_addr_list(data, ssid->bssid_blacklist,
 415                                           ssid->num_bssid_blacklist,
 416                                           "bssid_blacklist");
 417 }
 418 #endif /* NO_CONFIG_WRITE */
 419
 420
 421 static int wpa_config_parse_bssid_whitelist(const struct parse_data *data,
 422                                             struct wpa_ssid *ssid, int line,
 423                                             const char *value)
 424 {
 425         return wpa_config_parse_addr_list(data, line, value,
 426                                           &ssid->bssid_whitelist,
 427                                           &ssid->num_bssid_whitelist,
 428                                           "bssid_whitelist", 1, 1);
 429 }
 430
 431
 432 #ifndef NO_CONFIG_WRITE
 433 static char * wpa_config_write_bssid_whitelist(const struct parse_data *data,
 434                                                struct wpa_ssid *ssid)
 435 {
 436         return wpa_config_write_addr_list(data, ssid->bssid_whitelist,
 437                                           ssid->num_bssid_whitelist,
 438                                           "bssid_whitelist");
 439 }
 440 #endif /* NO_CONFIG_WRITE */
 441
 442
 443 static int wpa_config_parse_psk(const struct parse_data *data,
 444                                 struct wpa_ssid *ssid, int line,
 445                                 const char *value)
 446 {
 447 #ifdef CONFIG_EXT_PASSWORD
 448         if (os_strncmp(value, "ext:", 4) == 0) {
 449                 str_clear_free(ssid->passphrase);
 450                 ssid->passphrase = NULL;
 451                 ssid->psk_set = 0;
 452                 os_free(ssid->ext_psk);
 453                 ssid->ext_psk = os_strdup(value + 4);
 454                 if (ssid->ext_psk == NULL)
 455                         return -1;
 456                 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
 457                            ssid->ext_psk);
 458                 return 0;
 459         }
 460 #endif /* CONFIG_EXT_PASSWORD */
 461
 462         if (*value == '"') {
 463 #ifndef CONFIG_NO_PBKDF2
 464                 const char *pos;
 465                 size_t len;
 466
 467                 value++;
 468                 pos = os_strrchr(value, '"');
 469                 if (pos)
 470                         len = pos - value;
 471                 else
 472                         len = os_strlen(value);
 473                 if (len < 8 || len > 63) {
 474                         wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
 475                                    "length %lu (expected: 8..63) '%s'.",
 476                                    line, (unsigned long) len, value);
 477                         return -1;
 478                 }
 479                 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
 480                                       (u8 *) value, len);
 481                 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
 482                     os_memcmp(ssid->passphrase, value, len) == 0) {
 483                         /* No change to the previously configured value */
 484                         return 1;
 485                 }
 486                 ssid->psk_set = 0;
 487                 str_clear_free(ssid->passphrase);
 488                 ssid->passphrase = dup_binstr(value, len);
 489                 if (ssid->passphrase == NULL)
 490                         return -1;
 491                 return 0;
 492 #else /* CONFIG_NO_PBKDF2 */
 493                 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
 494                            "supported.", line);
 495                 return -1;
 496 #endif /* CONFIG_NO_PBKDF2 */
 497         }
 498
 499         if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
 500             value[PMK_LEN * 2] != '\0') {
 501                 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
 502                            line, value);
 503                 return -1;
 504         }
 505
 506         str_clear_free(ssid->passphrase);
 507         ssid->passphrase = NULL;
 508
 509         ssid->psk_set = 1;
 510         wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
 511         return 0;
 512 }
 513
 514
 515 #ifndef NO_CONFIG_WRITE
 516 static char * wpa_config_write_psk(const struct parse_data *data,
 517                                    struct wpa_ssid *ssid)
 518 {
 519 #ifdef CONFIG_EXT_PASSWORD
 520         if (ssid->ext_psk) {
 521                 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
 522                 char *buf = os_malloc(len);
 523                 int res;
 524
 525                 if (buf == NULL)
 526                         return NULL;
 527                 res = os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
 528                 if (os_snprintf_error(len, res)) {
 529                         os_free(buf);
 530                         buf = NULL;
 531                 }
 532                 return buf;
 533         }
 534 #endif /* CONFIG_EXT_PASSWORD */
 535
 536         if (ssid->passphrase)
 537                 return wpa_config_write_string_ascii(
 538                         (const u8 *) ssid->passphrase,
 539                         os_strlen(ssid->passphrase));
 540
 541         if (ssid->psk_set)
 542                 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
 543
 544         return NULL;
 545 }
 546 #endif /* NO_CONFIG_WRITE */
 547
 548
 549 static int wpa_config_parse_proto(const struct parse_data *data,
 550                                   struct wpa_ssid *ssid, int line,
 551                                   const char *value)
 552 {
 553         int val = 0, last, errors = 0;
 554         char *start, *end, *buf;
 555
 556         buf = os_strdup(value);
 557         if (buf == NULL)
 558                 return -1;
 559         start = buf;
 560
 561         while (*start != '\0') {
 562                 while (*start == ' ' || *start == '\t')
 563                         start++;
 564                 if (*start == '\0')
 565                         break;
 566                 end = start;
 567                 while (*end != ' ' && *end != '\t' && *end != '\0')
 568                         end++;
 569                 last = *end == '\0';
 570                 *end = '\0';
 571                 if (os_strcmp(start, "WPA") == 0)
 572                         val |= WPA_PROTO_WPA;
 573                 else if (os_strcmp(start, "RSN") == 0 ||
 574                          os_strcmp(start, "WPA2") == 0)
 575                         val |= WPA_PROTO_RSN;
 576                 else if (os_strcmp(start, "OSEN") == 0)
 577                         val |= WPA_PROTO_OSEN;
 578                 else {
 579                         wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
 580                                    line, start);
 581                         errors++;
 582                 }
 583
 584                 if (last)
 585                         break;
 586                 start = end + 1;
 587         }
 588         os_free(buf);
 589
 590         if (val == 0) {
 591                 wpa_printf(MSG_ERROR,
 592                            "Line %d: no proto values configured.", line);
 593                 errors++;
 594         }
 595
 596         if (!errors && ssid->proto == val)
 597                 return 1;
 598         wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
 599         ssid->proto = val;
 600         return errors ? -1 : 0;
 601 }
 602
 603
 604 #ifndef NO_CONFIG_WRITE
 605 static char * wpa_config_write_proto(const struct parse_data *data,
 606                                      struct wpa_ssid *ssid)
 607 {
 608         int ret;
 609         char *buf, *pos, *end;
 610
 611         pos = buf = os_zalloc(20);
 612         if (buf == NULL)
 613                 return NULL;
 614         end = buf + 20;
 615
 616         if (ssid->proto & WPA_PROTO_WPA) {
 617                 ret = os_snprintf(pos, end - pos, "%sWPA",
 618                                   pos == buf ? "" : " ");
 619                 if (os_snprintf_error(end - pos, ret))
 620                         return buf;
 621                 pos += ret;
 622         }
 623
 624         if (ssid->proto & WPA_PROTO_RSN) {
 625                 ret = os_snprintf(pos, end - pos, "%sRSN",
 626                                   pos == buf ? "" : " ");
 627                 if (os_snprintf_error(end - pos, ret))
 628                         return buf;
 629                 pos += ret;
 630         }
 631
 632         if (ssid->proto & WPA_PROTO_OSEN) {
 633                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 634                                   pos == buf ? "" : " ");
 635                 if (os_snprintf_error(end - pos, ret))
 636                         return buf;
 637                 pos += ret;
 638         }
 639
 640         if (pos == buf) {
 641                 os_free(buf);
 642                 buf = NULL;
 643         }
 644
 645         return buf;
 646 }
 647 #endif /* NO_CONFIG_WRITE */
 648
 649
 650 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
 651                                      struct wpa_ssid *ssid, int line,
 652                                      const char *value)
 653 {
 654         int val = 0, last, errors = 0;
 655         char *start, *end, *buf;
 656
 657         buf = os_strdup(value);
 658         if (buf == NULL)
 659                 return -1;
 660         start = buf;
 661
 662         while (*start != '\0') {
 663                 while (*start == ' ' || *start == '\t')
 664                         start++;
 665                 if (*start == '\0')
 666                         break;
 667                 end = start;
 668                 while (*end != ' ' && *end != '\t' && *end != '\0')
 669                         end++;
 670                 last = *end == '\0';
 671                 *end = '\0';
 672                 if (os_strcmp(start, "WPA-PSK") == 0)
 673                         val |= WPA_KEY_MGMT_PSK;
 674                 else if (os_strcmp(start, "WPA-EAP") == 0)
 675                         val |= WPA_KEY_MGMT_IEEE8021X;
 676                 else if (os_strcmp(start, "IEEE8021X") == 0)
 677                         val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
 678                 else if (os_strcmp(start, "NONE") == 0)
 679                         val |= WPA_KEY_MGMT_NONE;
 680                 else if (os_strcmp(start, "WPA-NONE") == 0)
 681                         val |= WPA_KEY_MGMT_WPA_NONE;
 682 #ifdef CONFIG_IEEE80211R
 683                 else if (os_strcmp(start, "FT-PSK") == 0)
 684                         val |= WPA_KEY_MGMT_FT_PSK;
 685                 else if (os_strcmp(start, "FT-EAP") == 0)
 686                         val |= WPA_KEY_MGMT_FT_IEEE8021X;
 687 #endif /* CONFIG_IEEE80211R */
 688 #ifdef CONFIG_IEEE80211W
 689                 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
 690                         val |= WPA_KEY_MGMT_PSK_SHA256;
 691                 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
 692                         val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
 693 #endif /* CONFIG_IEEE80211W */
 694 #ifdef CONFIG_WPS
 695                 else if (os_strcmp(start, "WPS") == 0)
 696                         val |= WPA_KEY_MGMT_WPS;
 697 #endif /* CONFIG_WPS */
 698 #ifdef CONFIG_SAE
 699                 else if (os_strcmp(start, "SAE") == 0)
 700                         val |= WPA_KEY_MGMT_SAE;
 701                 else if (os_strcmp(start, "FT-SAE") == 0)
 702                         val |= WPA_KEY_MGMT_FT_SAE;
 703 #endif /* CONFIG_SAE */
 704 #ifdef CONFIG_HS20
 705                 else if (os_strcmp(start, "OSEN") == 0)
 706                         val |= WPA_KEY_MGMT_OSEN;
 707 #endif /* CONFIG_HS20 */
 708 #ifdef CONFIG_SUITEB
 709                 else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
 710                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
 711 #endif /* CONFIG_SUITEB */
 712 #ifdef CONFIG_SUITEB192
 713                 else if (os_strcmp(start, "WPA-EAP-SUITE-B-192") == 0)
 714                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B_192;
 715 #endif /* CONFIG_SUITEB192 */
 716                 else {
 717                         wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
 718                                    line, start);
 719                         errors++;
 720                 }
 721
 722                 if (last)
 723                         break;
 724                 start = end + 1;
 725         }
 726         os_free(buf);
 727
 728         if (val == 0) {
 729                 wpa_printf(MSG_ERROR,
 730                            "Line %d: no key_mgmt values configured.", line);
 731                 errors++;
 732         }
 733
 734         if (!errors && ssid->key_mgmt == val)
 735                 return 1;
 736         wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
 737         ssid->key_mgmt = val;
 738         return errors ? -1 : 0;
 739 }
 740
 741
 742 #ifndef NO_CONFIG_WRITE
 743 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
 744                                         struct wpa_ssid *ssid)
 745 {
 746         char *buf, *pos, *end;
 747         int ret;
 748
 749         pos = buf = os_zalloc(100);
 750         if (buf == NULL)
 751                 return NULL;
 752         end = buf + 100;
 753
 754         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
 755                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
 756                                   pos == buf ? "" : " ");
 757                 if (os_snprintf_error(end - pos, ret)) {
 758                         end[-1] = '\0';
 759                         return buf;
 760                 }
 761                 pos += ret;
 762         }
 763
 764         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
 765                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
 766                                   pos == buf ? "" : " ");
 767                 if (os_snprintf_error(end - pos, ret)) {
 768                         end[-1] = '\0';
 769                         return buf;
 770                 }
 771                 pos += ret;
 772         }
 773
 774         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 775                 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
 776                                   pos == buf ? "" : " ");
 777                 if (os_snprintf_error(end - pos, ret)) {
 778                         end[-1] = '\0';
 779                         return buf;
 780                 }
 781                 pos += ret;
 782         }
 783
 784         if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
 785                 ret = os_snprintf(pos, end - pos, "%sNONE",
 786                                   pos == buf ? "" : " ");
 787                 if (os_snprintf_error(end - pos, ret)) {
 788                         end[-1] = '\0';
 789                         return buf;
 790                 }
 791                 pos += ret;
 792         }
 793
 794         if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
 795                 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
 796                                   pos == buf ? "" : " ");
 797                 if (os_snprintf_error(end - pos, ret)) {
 798                         end[-1] = '\0';
 799                         return buf;
 800                 }
 801                 pos += ret;
 802         }
 803
 804 #ifdef CONFIG_IEEE80211R
 805         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
 806                 ret = os_snprintf(pos, end - pos, "%sFT-PSK",
 807                                   pos == buf ? "" : " ");
 808                 if (os_snprintf_error(end - pos, ret)) {
 809                         end[-1] = '\0';
 810                         return buf;
 811                 }
 812                 pos += ret;
 813         }
 814
 815         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
 816                 ret = os_snprintf(pos, end - pos, "%sFT-EAP",
 817                                   pos == buf ? "" : " ");
 818                 if (os_snprintf_error(end - pos, ret)) {
 819                         end[-1] = '\0';
 820                         return buf;
 821                 }
 822                 pos += ret;
 823         }
 824 #endif /* CONFIG_IEEE80211R */
 825
 826 #ifdef CONFIG_IEEE80211W
 827         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
 828                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
 829                                   pos == buf ? "" : " ");
 830                 if (os_snprintf_error(end - pos, ret)) {
 831                         end[-1] = '\0';
 832                         return buf;
 833                 }
 834                 pos += ret;
 835         }
 836
 837         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
 838                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
 839                                   pos == buf ? "" : " ");
 840                 if (os_snprintf_error(end - pos, ret)) {
 841                         end[-1] = '\0';
 842                         return buf;
 843                 }
 844                 pos += ret;
 845         }
 846 #endif /* CONFIG_IEEE80211W */
 847
 848 #ifdef CONFIG_WPS
 849         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 850                 ret = os_snprintf(pos, end - pos, "%sWPS",
 851                                   pos == buf ? "" : " ");
 852                 if (os_snprintf_error(end - pos, ret)) {
 853                         end[-1] = '\0';
 854                         return buf;
 855                 }
 856                 pos += ret;
 857         }
 858 #endif /* CONFIG_WPS */
 859
 860 #ifdef CONFIG_SAE
 861         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 862                 ret = os_snprintf(pos, end - pos, "%sSAE",
 863                                   pos == buf ? "" : " ");
 864                 if (os_snprintf_error(end - pos, ret)) {
 865                         end[-1] = '\0';
 866                         return buf;
 867                 }
 868                 pos += ret;
 869         }
 870
 871         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
 872                 ret = os_snprintf(pos, end - pos, "%sFT-SAE",
 873                                   pos == buf ? "" : " ");
 874                 if (os_snprintf_error(end - pos, ret)) {
 875                         end[-1] = '\0';
 876                         return buf;
 877                 }
 878                 pos += ret;
 879         }
 880 #endif /* CONFIG_SAE */
 881
 882 #ifdef CONFIG_HS20
 883         if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
 884                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 885                                   pos == buf ? "" : " ");
 886                 if (os_snprintf_error(end - pos, ret)) {
 887                         end[-1] = '\0';
 888                         return buf;
 889                 }
 890                 pos += ret;
 891         }
 892 #endif /* CONFIG_HS20 */
 893
 894 #ifdef CONFIG_SUITEB
 895         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
 896                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
 897                                   pos == buf ? "" : " ");
 898                 if (os_snprintf_error(end - pos, ret)) {
 899                         end[-1] = '\0';
 900                         return buf;
 901                 }
 902                 pos += ret;
 903         }
 904 #endif /* CONFIG_SUITEB */
 905
 906 #ifdef CONFIG_SUITEB192
 907         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B_192) {
 908                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B-192",
 909                                   pos == buf ? "" : " ");
 910                 if (os_snprintf_error(end - pos, ret)) {
 911                         end[-1] = '\0';
 912                         return buf;
 913                 }
 914                 pos += ret;
 915         }
 916 #endif /* CONFIG_SUITEB192 */
 917
 918         if (pos == buf) {
 919                 os_free(buf);
 920                 buf = NULL;
 921         }
 922
 923         return buf;
 924 }
 925 #endif /* NO_CONFIG_WRITE */
 926
 927
 928 static int wpa_config_parse_cipher(int line, const char *value)
 929 {
 930 #ifdef CONFIG_NO_WPA
 931         return -1;
 932 #else /* CONFIG_NO_WPA */
 933         int val = wpa_parse_cipher(value);
 934         if (val < 0) {
 935                 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
 936                            line, value);
 937                 return -1;
 938         }
 939         if (val == 0) {
 940                 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
 941                            line);
 942                 return -1;
 943         }
 944         return val;
 945 #endif /* CONFIG_NO_WPA */
 946 }
 947
 948
 949 #ifndef NO_CONFIG_WRITE
 950 static char * wpa_config_write_cipher(int cipher)
 951 {
 952 #ifdef CONFIG_NO_WPA
 953         return NULL;
 954 #else /* CONFIG_NO_WPA */
 955         char *buf = os_zalloc(50);
 956         if (buf == NULL)
 957                 return NULL;
 958
 959         if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
 960                 os_free(buf);
 961                 return NULL;
 962         }
 963
 964         return buf;
 965 #endif /* CONFIG_NO_WPA */
 966 }
 967 #endif /* NO_CONFIG_WRITE */
 968
 969
 970 static int wpa_config_parse_pairwise(const struct parse_data *data,
 971                                      struct wpa_ssid *ssid, int line,
 972                                      const char *value)
 973 {
 974         int val;
 975         val = wpa_config_parse_cipher(line, value);
 976         if (val == -1)
 977                 return -1;
 978         if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
 979                 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
 980                            "(0x%x).", line, val);
 981                 return -1;
 982         }
 983
 984         if (ssid->pairwise_cipher == val)
 985                 return 1;
 986         wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
 987         ssid->pairwise_cipher = val;
 988         return 0;
 989 }
 990
 991
 992 #ifndef NO_CONFIG_WRITE
 993 static char * wpa_config_write_pairwise(const struct parse_data *data,
 994                                         struct wpa_ssid *ssid)
 995 {
 996         return wpa_config_write_cipher(ssid->pairwise_cipher);
 997 }
 998 #endif /* NO_CONFIG_WRITE */
 999
1000
1001 static int wpa_config_parse_group(const struct parse_data *data,
1002                                   struct wpa_ssid *ssid, int line,
1003                                   const char *value)
1004 {
1005         int val;
1006         val = wpa_config_parse_cipher(line, value);
1007         if (val == -1)
1008                 return -1;
1009
1010         /*
1011          * Backwards compatibility - filter out WEP ciphers that were previously
1012          * allowed.
1013          */
1014         val &= ~(WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40);
1015
1016         if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
1017                 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
1018                            "(0x%x).", line, val);
1019                 return -1;
1020         }
1021
1022         if (ssid->group_cipher == val)
1023                 return 1;
1024         wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
1025         ssid->group_cipher = val;
1026         return 0;
1027 }
1028
1029
1030 #ifndef NO_CONFIG_WRITE
1031 static char * wpa_config_write_group(const struct parse_data *data,
1032                                      struct wpa_ssid *ssid)
1033 {
1034         return wpa_config_write_cipher(ssid->group_cipher);
1035 }
1036 #endif /* NO_CONFIG_WRITE */
1037
1038
1039 static int wpa_config_parse_auth_alg(const struct parse_data *data,
1040                                      struct wpa_ssid *ssid, int line,
1041                                      const char *value)
1042 {
1043         int val = 0, last, errors = 0;
1044         char *start, *end, *buf;
1045
1046         buf = os_strdup(value);
1047         if (buf == NULL)
1048                 return -1;
1049         start = buf;
1050
1051         while (*start != '\0') {
1052                 while (*start == ' ' || *start == '\t')
1053                         start++;
1054                 if (*start == '\0')
1055                         break;
1056                 end = start;
1057                 while (*end != ' ' && *end != '\t' && *end != '\0')
1058                         end++;
1059                 last = *end == '\0';
1060                 *end = '\0';
1061                 if (os_strcmp(start, "OPEN") == 0)
1062                         val |= WPA_AUTH_ALG_OPEN;
1063                 else if (os_strcmp(start, "SHARED") == 0)
1064                         val |= WPA_AUTH_ALG_SHARED;
1065                 else if (os_strcmp(start, "LEAP") == 0)
1066                         val |= WPA_AUTH_ALG_LEAP;
1067                 else {
1068                         wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
1069                                    line, start);
1070                         errors++;
1071                 }
1072
1073                 if (last)
1074                         break;
1075                 start = end + 1;
1076         }
1077         os_free(buf);
1078
1079         if (val == 0) {
1080                 wpa_printf(MSG_ERROR,
1081                            "Line %d: no auth_alg values configured.", line);
1082                 errors++;
1083         }
1084
1085         if (!errors && ssid->auth_alg == val)
1086                 return 1;
1087         wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
1088         ssid->auth_alg = val;
1089         return errors ? -1 : 0;
1090 }
1091
1092
1093 #ifndef NO_CONFIG_WRITE
1094 static char * wpa_config_write_auth_alg(const struct parse_data *data,
1095                                         struct wpa_ssid *ssid)
1096 {
1097         char *buf, *pos, *end;
1098         int ret;
1099
1100         pos = buf = os_zalloc(30);
1101         if (buf == NULL)
1102                 return NULL;
1103         end = buf + 30;
1104
1105         if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
1106                 ret = os_snprintf(pos, end - pos, "%sOPEN",
1107                                   pos == buf ? "" : " ");
1108                 if (os_snprintf_error(end - pos, ret)) {
1109                         end[-1] = '\0';
1110                         return buf;
1111                 }
1112                 pos += ret;
1113         }
1114
1115         if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
1116                 ret = os_snprintf(pos, end - pos, "%sSHARED",
1117                                   pos == buf ? "" : " ");
1118                 if (os_snprintf_error(end - pos, ret)) {
1119                         end[-1] = '\0';
1120                         return buf;
1121                 }
1122                 pos += ret;
1123         }
1124
1125         if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
1126                 ret = os_snprintf(pos, end - pos, "%sLEAP",
1127                                   pos == buf ? "" : " ");
1128                 if (os_snprintf_error(end - pos, ret)) {
1129                         end[-1] = '\0';
1130                         return buf;
1131                 }
1132                 pos += ret;
1133         }
1134
1135         if (pos == buf) {
1136                 os_free(buf);
1137                 buf = NULL;
1138         }
1139
1140         return buf;
1141 }
1142 #endif /* NO_CONFIG_WRITE */
1143
1144
1145 static int * wpa_config_parse_int_array(const char *value)
1146 {
1147         int *freqs;
1148         size_t used, len;
1149         const char *pos;
1150
1151         used = 0;
1152         len = 10;
1153         freqs = os_calloc(len + 1, sizeof(int));
1154         if (freqs == NULL)
1155                 return NULL;
1156
1157         pos = value;
1158         while (pos) {
1159                 while (*pos == ' ')
1160                         pos++;
1161                 if (used == len) {
1162                         int *n;
1163                         size_t i;
1164                         n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
1165                         if (n == NULL) {
1166                                 os_free(freqs);
1167                                 return NULL;
1168                         }
1169                         for (i = len; i <= len * 2; i++)
1170                                 n[i] = 0;
1171                         freqs = n;
1172                         len *= 2;
1173                 }
1174
1175                 freqs[used] = atoi(pos);
1176                 if (freqs[used] == 0)
1177                         break;
1178                 used++;
1179                 pos = os_strchr(pos + 1, ' ');
1180         }
1181
1182         return freqs;
1183 }
1184
1185
1186 static int wpa_config_parse_scan_freq(const struct parse_data *data,
1187                                       struct wpa_ssid *ssid, int line,
1188                                       const char *value)
1189 {
1190         int *freqs;
1191
1192         freqs = wpa_config_parse_int_array(value);
1193         if (freqs == NULL)
1194                 return -1;
1195         if (freqs[0] == 0) {
1196                 os_free(freqs);
1197                 freqs = NULL;
1198         }
1199         os_free(ssid->scan_freq);
1200         ssid->scan_freq = freqs;
1201
1202         return 0;
1203 }
1204
1205
1206 static int wpa_config_parse_freq_list(const struct parse_data *data,
1207                                       struct wpa_ssid *ssid, int line,
1208                                       const char *value)
1209 {
1210         int *freqs;
1211
1212         freqs = wpa_config_parse_int_array(value);
1213         if (freqs == NULL)
1214                 return -1;
1215         if (freqs[0] == 0) {
1216                 os_free(freqs);
1217                 freqs = NULL;
1218         }
1219         os_free(ssid->freq_list);
1220         ssid->freq_list = freqs;
1221
1222         return 0;
1223 }
1224
1225
1226 #ifndef NO_CONFIG_WRITE
1227 static char * wpa_config_write_freqs(const struct parse_data *data,
1228                                      const int *freqs)
1229 {
1230         char *buf, *pos, *end;
1231         int i, ret;
1232         size_t count;
1233
1234         if (freqs == NULL)
1235                 return NULL;
1236
1237         count = 0;
1238         for (i = 0; freqs[i]; i++)
1239                 count++;
1240
1241         pos = buf = os_zalloc(10 * count + 1);
1242         if (buf == NULL)
1243                 return NULL;
1244         end = buf + 10 * count + 1;
1245
1246         for (i = 0; freqs[i]; i++) {
1247                 ret = os_snprintf(pos, end - pos, "%s%u",
1248                                   i == 0 ? "" : " ", freqs[i]);
1249                 if (os_snprintf_error(end - pos, ret)) {
1250                         end[-1] = '\0';
1251                         return buf;
1252                 }
1253                 pos += ret;
1254         }
1255
1256         return buf;
1257 }
1258
1259
1260 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1261                                          struct wpa_ssid *ssid)
1262 {
1263         return wpa_config_write_freqs(data, ssid->scan_freq);
1264 }
1265
1266
1267 static char * wpa_config_write_freq_list(const struct parse_data *data,
1268                                          struct wpa_ssid *ssid)
1269 {
1270         return wpa_config_write_freqs(data, ssid->freq_list);
1271 }
1272 #endif /* NO_CONFIG_WRITE */
1273
1274
1275 #ifdef IEEE8021X_EAPOL
1276 static int wpa_config_parse_eap(const struct parse_data *data,
1277                                 struct wpa_ssid *ssid, int line,
1278                                 const char *value)
1279 {
1280         int last, errors = 0;
1281         char *start, *end, *buf;
1282         struct eap_method_type *methods = NULL, *tmp;
1283         size_t num_methods = 0;
1284
1285         buf = os_strdup(value);
1286         if (buf == NULL)
1287                 return -1;
1288         start = buf;
1289
1290         while (*start != '\0') {
1291                 while (*start == ' ' || *start == '\t')
1292                         start++;
1293                 if (*start == '\0')
1294                         break;
1295                 end = start;
1296                 while (*end != ' ' && *end != '\t' && *end != '\0')
1297                         end++;
1298                 last = *end == '\0';
1299                 *end = '\0';
1300                 tmp = methods;
1301                 methods = os_realloc_array(methods, num_methods + 1,
1302                                            sizeof(*methods));
1303                 if (methods == NULL) {
1304                         os_free(tmp);
1305                         os_free(buf);
1306                         return -1;
1307                 }
1308                 methods[num_methods].method = eap_peer_get_type(
1309                         start, &methods[num_methods].vendor);
1310                 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1311                     methods[num_methods].method == EAP_TYPE_NONE) {
1312                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1313                                    "'%s'", line, start);
1314                         wpa_printf(MSG_ERROR, "You may need to add support for"
1315                                    " this EAP method during wpa_supplicant\n"
1316                                    "build time configuration.\n"
1317                                    "See README for more information.");
1318                         errors++;
1319                 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1320                            methods[num_methods].method == EAP_TYPE_LEAP)
1321                         ssid->leap++;
1322                 else
1323                         ssid->non_leap++;
1324                 num_methods++;
1325                 if (last)
1326                         break;
1327                 start = end + 1;
1328         }
1329         os_free(buf);
1330
1331         tmp = methods;
1332         methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1333         if (methods == NULL) {
1334                 os_free(tmp);
1335                 return -1;
1336         }
1337         methods[num_methods].vendor = EAP_VENDOR_IETF;
1338         methods[num_methods].method = EAP_TYPE_NONE;
1339         num_methods++;
1340
1341         if (!errors && ssid->eap.eap_methods) {
1342                 struct eap_method_type *prev_m;
1343                 size_t i, j, prev_methods, match = 0;
1344
1345                 prev_m = ssid->eap.eap_methods;
1346                 for (i = 0; prev_m[i].vendor != EAP_VENDOR_IETF ||
1347                              prev_m[i].method != EAP_TYPE_NONE; i++) {
1348                         /* Count the methods */
1349                 }
1350                 prev_methods = i + 1;
1351
1352                 for (i = 0; prev_methods == num_methods && i < prev_methods;
1353                      i++) {
1354                         for (j = 0; j < num_methods; j++) {
1355                                 if (prev_m[i].vendor == methods[j].vendor &&
1356                                     prev_m[i].method == methods[j].method) {
1357                                         match++;
1358                                         break;
1359                                 }
1360                         }
1361                 }
1362                 if (match == num_methods) {
1363                         os_free(methods);
1364                         return 1;
1365                 }
1366         }
1367         wpa_hexdump(MSG_MSGDUMP, "eap methods",
1368                     (u8 *) methods, num_methods * sizeof(*methods));
1369         os_free(ssid->eap.eap_methods);
1370         ssid->eap.eap_methods = methods;
1371         return errors ? -1 : 0;
1372 }
1373
1374
1375 #ifndef NO_CONFIG_WRITE
1376 static char * wpa_config_write_eap(const struct parse_data *data,
1377                                    struct wpa_ssid *ssid)
1378 {
1379         int i, ret;
1380         char *buf, *pos, *end;
1381         const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1382         const char *name;
1383
1384         if (eap_methods == NULL)
1385                 return NULL;
1386
1387         pos = buf = os_zalloc(100);
1388         if (buf == NULL)
1389                 return NULL;
1390         end = buf + 100;
1391
1392         for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1393                      eap_methods[i].method != EAP_TYPE_NONE; i++) {
1394                 name = eap_get_name(eap_methods[i].vendor,
1395                                     eap_methods[i].method);
1396                 if (name) {
1397                         ret = os_snprintf(pos, end - pos, "%s%s",
1398                                           pos == buf ? "" : " ", name);
1399                         if (os_snprintf_error(end - pos, ret))
1400                                 break;
1401                         pos += ret;
1402                 }
1403         }
1404
1405         end[-1] = '\0';
1406
1407         return buf;
1408 }
1409 #endif /* NO_CONFIG_WRITE */
1410
1411
1412 static int wpa_config_parse_password(const struct parse_data *data,
1413                                      struct wpa_ssid *ssid, int line,
1414                                      const char *value)
1415 {
1416         u8 *hash;
1417
1418         if (os_strcmp(value, "NULL") == 0) {
1419                 if (!ssid->eap.password)
1420                         return 1; /* Already unset */
1421                 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1422                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1423                 ssid->eap.password = NULL;
1424                 ssid->eap.password_len = 0;
1425                 return 0;
1426         }
1427
1428 #ifdef CONFIG_EXT_PASSWORD
1429         if (os_strncmp(value, "ext:", 4) == 0) {
1430                 char *name = os_strdup(value + 4);
1431                 if (name == NULL)
1432                         return -1;
1433                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1434                 ssid->eap.password = (u8 *) name;
1435                 ssid->eap.password_len = os_strlen(name);
1436                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1437                 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1438                 return 0;
1439         }
1440 #endif /* CONFIG_EXT_PASSWORD */
1441
1442         if (os_strncmp(value, "hash:", 5) != 0) {
1443                 char *tmp;
1444                 size_t res_len;
1445
1446                 tmp = wpa_config_parse_string(value, &res_len);
1447                 if (tmp == NULL) {
1448                         wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1449                                    "password.", line);
1450                         return -1;
1451                 }
1452                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1453                                       (u8 *) tmp, res_len);
1454
1455                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1456                 ssid->eap.password = (u8 *) tmp;
1457                 ssid->eap.password_len = res_len;
1458                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1459                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1460
1461                 return 0;
1462         }
1463
1464
1465         /* NtPasswordHash: hash:<32 hex digits> */
1466         if (os_strlen(value + 5) != 2 * 16) {
1467                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1468                            "(expected 32 hex digits)", line);
1469                 return -1;
1470         }
1471
1472         hash = os_malloc(16);
1473         if (hash == NULL)
1474                 return -1;
1475
1476         if (hexstr2bin(value + 5, hash, 16)) {
1477                 os_free(hash);
1478                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1479                 return -1;
1480         }
1481
1482         wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1483
1484         if (ssid->eap.password && ssid->eap.password_len == 16 &&
1485             os_memcmp(ssid->eap.password, hash, 16) == 0 &&
1486             (ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1487                 bin_clear_free(hash, 16);
1488                 return 1;
1489         }
1490         bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1491         ssid->eap.password = hash;
1492         ssid->eap.password_len = 16;
1493         ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1494         ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1495
1496         return 0;
1497 }
1498
1499
1500 #ifndef NO_CONFIG_WRITE
1501 static char * wpa_config_write_password(const struct parse_data *data,
1502                                         struct wpa_ssid *ssid)
1503 {
1504         char *buf;
1505
1506         if (ssid->eap.password == NULL)
1507                 return NULL;
1508
1509 #ifdef CONFIG_EXT_PASSWORD
1510         if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1511                 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1512                 if (buf == NULL)
1513                         return NULL;
1514                 os_memcpy(buf, "ext:", 4);
1515                 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1516                 return buf;
1517         }
1518 #endif /* CONFIG_EXT_PASSWORD */
1519
1520         if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1521                 return wpa_config_write_string(
1522                         ssid->eap.password, ssid->eap.password_len);
1523         }
1524
1525         buf = os_malloc(5 + 32 + 1);
1526         if (buf == NULL)
1527                 return NULL;
1528
1529         os_memcpy(buf, "hash:", 5);
1530         wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1531
1532         return buf;
1533 }
1534 #endif /* NO_CONFIG_WRITE */
1535 #endif /* IEEE8021X_EAPOL */
1536
1537
1538 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1539                                     const char *value, int idx)
1540 {
1541         char *buf, title[20];
1542         int res;
1543
1544         buf = wpa_config_parse_string(value, len);
1545         if (buf == NULL) {
1546                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1547                            line, idx, value);
1548                 return -1;
1549         }
1550         if (*len > MAX_WEP_KEY_LEN) {
1551                 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1552                            line, idx, value);
1553                 os_free(buf);
1554                 return -1;
1555         }
1556         if (*len && *len != 5 && *len != 13 && *len != 16) {
1557                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1558                            "this network block will be ignored",
1559                            line, (unsigned int) *len);
1560         }
1561         os_memcpy(key, buf, *len);
1562         str_clear_free(buf);
1563         res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1564         if (!os_snprintf_error(sizeof(title), res))
1565                 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1566         return 0;
1567 }
1568
1569
1570 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1571                                      struct wpa_ssid *ssid, int line,
1572                                      const char *value)
1573 {
1574         return wpa_config_parse_wep_key(ssid->wep_key[0],
1575                                         &ssid->wep_key_len[0], line,
1576                                         value, 0);
1577 }
1578
1579
1580 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1581                                      struct wpa_ssid *ssid, int line,
1582                                      const char *value)
1583 {
1584         return wpa_config_parse_wep_key(ssid->wep_key[1],
1585                                         &ssid->wep_key_len[1], line,
1586                                         value, 1);
1587 }
1588
1589
1590 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1591                                      struct wpa_ssid *ssid, int line,
1592                                      const char *value)
1593 {
1594         return wpa_config_parse_wep_key(ssid->wep_key[2],
1595                                         &ssid->wep_key_len[2], line,
1596                                         value, 2);
1597 }
1598
1599
1600 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1601                                      struct wpa_ssid *ssid, int line,
1602                                      const char *value)
1603 {
1604         return wpa_config_parse_wep_key(ssid->wep_key[3],
1605                                         &ssid->wep_key_len[3], line,
1606                                         value, 3);
1607 }
1608
1609
1610 #ifndef NO_CONFIG_WRITE
1611 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1612 {
1613         if (ssid->wep_key_len[idx] == 0)
1614                 return NULL;
1615         return wpa_config_write_string(ssid->wep_key[idx],
1616                                        ssid->wep_key_len[idx]);
1617 }
1618
1619
1620 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1621                                         struct wpa_ssid *ssid)
1622 {
1623         return wpa_config_write_wep_key(ssid, 0);
1624 }
1625
1626
1627 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1628                                         struct wpa_ssid *ssid)
1629 {
1630         return wpa_config_write_wep_key(ssid, 1);
1631 }
1632
1633
1634 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1635                                         struct wpa_ssid *ssid)
1636 {
1637         return wpa_config_write_wep_key(ssid, 2);
1638 }
1639
1640
1641 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1642                                         struct wpa_ssid *ssid)
1643 {
1644         return wpa_config_write_wep_key(ssid, 3);
1645 }
1646 #endif /* NO_CONFIG_WRITE */
1647
1648
1649 #ifdef CONFIG_P2P
1650
1651 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1652                                             struct wpa_ssid *ssid, int line,
1653                                             const char *value)
1654 {
1655         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1656             os_strcmp(value, "any") == 0) {
1657                 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1658                 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1659                 return 0;
1660         }
1661         if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1662                 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1663                            line, value);
1664                 return -1;
1665         }
1666         ssid->bssid_set = 1;
1667         wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1668                    MAC2STR(ssid->go_p2p_dev_addr));
1669         return 0;
1670 }
1671
1672
1673 #ifndef NO_CONFIG_WRITE
1674 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1675                                                struct wpa_ssid *ssid)
1676 {
1677         char *value;
1678         int res;
1679
1680         if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1681                 return NULL;
1682
1683         value = os_malloc(20);
1684         if (value == NULL)
1685                 return NULL;
1686         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1687         if (os_snprintf_error(20, res)) {
1688                 os_free(value);
1689                 return NULL;
1690         }
1691         value[20 - 1] = '\0';
1692         return value;
1693 }
1694 #endif /* NO_CONFIG_WRITE */
1695
1696
1697 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1698                                             struct wpa_ssid *ssid, int line,
1699                                             const char *value)
1700 {
1701         return wpa_config_parse_addr_list(data, line, value,
1702                                           &ssid->p2p_client_list,
1703                                           &ssid->num_p2p_clients,
1704                                           "p2p_client_list", 0, 0);
1705 }
1706
1707
1708 #ifndef NO_CONFIG_WRITE
1709 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1710                                                struct wpa_ssid *ssid)
1711 {
1712         return wpa_config_write_addr_list(data, ssid->p2p_client_list,
1713                                           ssid->num_p2p_clients,
1714                                           "p2p_client_list");
1715 }
1716 #endif /* NO_CONFIG_WRITE */
1717
1718
1719 static int wpa_config_parse_psk_list(const struct parse_data *data,
1720                                      struct wpa_ssid *ssid, int line,
1721                                      const char *value)
1722 {
1723         struct psk_list_entry *p;
1724         const char *pos;
1725
1726         p = os_zalloc(sizeof(*p));
1727         if (p == NULL)
1728                 return -1;
1729
1730         pos = value;
1731         if (os_strncmp(pos, "P2P-", 4) == 0) {
1732                 p->p2p = 1;
1733                 pos += 4;
1734         }
1735
1736         if (hwaddr_aton(pos, p->addr)) {
1737                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1738                            line, pos);
1739                 os_free(p);
1740                 return -1;
1741         }
1742         pos += 17;
1743         if (*pos != '-') {
1744                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1745                            line, pos);
1746                 os_free(p);
1747                 return -1;
1748         }
1749         pos++;
1750
1751         if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1752                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1753                            line, pos);
1754                 os_free(p);
1755                 return -1;
1756         }
1757
1758         dl_list_add(&ssid->psk_list, &p->list);
1759
1760         return 0;
1761 }
1762
1763
1764 #ifndef NO_CONFIG_WRITE
1765 static char * wpa_config_write_psk_list(const struct parse_data *data,
1766                                         struct wpa_ssid *ssid)
1767 {
1768         return NULL;
1769 }
1770 #endif /* NO_CONFIG_WRITE */
1771
1772 #endif /* CONFIG_P2P */
1773
1774
1775 #ifdef CONFIG_MESH
1776
1777 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1778                                              struct wpa_ssid *ssid, int line,
1779                                              const char *value)
1780 {
1781         int *rates = wpa_config_parse_int_array(value);
1782
1783         if (rates == NULL) {
1784                 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1785                            line, value);
1786                 return -1;
1787         }
1788         if (rates[0] == 0) {
1789                 os_free(rates);
1790                 rates = NULL;
1791         }
1792
1793         os_free(ssid->mesh_basic_rates);
1794         ssid->mesh_basic_rates = rates;
1795
1796         return 0;
1797 }
1798
1799
1800 #ifndef NO_CONFIG_WRITE
1801
1802 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1803                                                 struct wpa_ssid *ssid)
1804 {
1805         return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1806 }
1807
1808 #endif /* NO_CONFIG_WRITE */
1809
1810 #endif /* CONFIG_MESH */
1811
1812
1813 /* Helper macros for network block parser */
1814
1815 #ifdef OFFSET
1816 #undef OFFSET
1817 #endif /* OFFSET */
1818 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1819 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1820
1821 /* STR: Define a string variable for an ASCII string; f = field name */
1822 #ifdef NO_CONFIG_WRITE
1823 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1824 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1825 #else /* NO_CONFIG_WRITE */
1826 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1827 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1828 #endif /* NO_CONFIG_WRITE */
1829 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1830 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1831 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1832 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1833
1834 /* STR_LEN: Define a string variable with a separate variable for storing the
1835  * data length. Unlike STR(), this can be used to store arbitrary binary data
1836  * (i.e., even nul termination character). */
1837 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1838 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1839 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1840 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1841 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1842
1843 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1844  * explicitly specified. */
1845 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1846 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1847 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1848
1849 #ifdef NO_CONFIG_WRITE
1850 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1851 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1852 #else /* NO_CONFIG_WRITE */
1853 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1854         OFFSET(f), (void *) 0
1855 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1856         OFFSET(eap.f), (void *) 0
1857 #endif /* NO_CONFIG_WRITE */
1858
1859 /* INT: Define an integer variable */
1860 #define INT(f) _INT(f), NULL, NULL, 0
1861 #define INTe(f) _INTe(f), NULL, NULL, 0
1862
1863 /* INT_RANGE: Define an integer variable with allowed value range */
1864 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1865
1866 /* FUNC: Define a configuration variable that uses a custom function for
1867  * parsing and writing the value. */
1868 #ifdef NO_CONFIG_WRITE
1869 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1870 #else /* NO_CONFIG_WRITE */
1871 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1872         NULL, NULL, NULL, NULL
1873 #endif /* NO_CONFIG_WRITE */
1874 #define FUNC(f) _FUNC(f), 0
1875 #define FUNC_KEY(f) _FUNC(f), 1
1876
1877 /*
1878  * Table of network configuration variables. This table is used to parse each
1879  * network configuration variable, e.g., each line in wpa_supplicant.conf file
1880  * that is inside a network block.
1881  *
1882  * This table is generated using the helper macros defined above and with
1883  * generous help from the C pre-processor. The field name is stored as a string
1884  * into .name and for STR and INT types, the offset of the target buffer within
1885  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1886  * offset to the field containing the length of the configuration variable.
1887  * .param3 and .param4 can be used to mark the allowed range (length for STR
1888  * and value for INT).
1889  *
1890  * For each configuration line in wpa_supplicant.conf, the parser goes through
1891  * this table and select the entry that matches with the field name. The parser
1892  * function (.parser) is then called to parse the actual value of the field.
1893  *
1894  * This kind of mechanism makes it easy to add new configuration parameters,
1895  * since only one line needs to be added into this table and into the
1896  * struct wpa_ssid definition if the new variable is either a string or
1897  * integer. More complex types will need to use their own parser and writer
1898  * functions.
1899  */
1900 static const struct parse_data ssid_fields[] = {
1901         { STR_RANGE(ssid, 0, SSID_MAX_LEN) },
1902         { INT_RANGE(scan_ssid, 0, 1) },
1903         { FUNC(bssid) },
1904         { FUNC(bssid_blacklist) },
1905         { FUNC(bssid_whitelist) },
1906         { FUNC_KEY(psk) },
1907         { INT(mem_only_psk) },
1908         { FUNC(proto) },
1909         { FUNC(key_mgmt) },
1910         { INT(bg_scan_period) },
1911         { FUNC(pairwise) },
1912         { FUNC(group) },
1913         { FUNC(auth_alg) },
1914         { FUNC(scan_freq) },
1915         { FUNC(freq_list) },
1916         { INT_RANGE(max_oper_chwidth, VHT_CHANWIDTH_USE_HT,
1917                     VHT_CHANWIDTH_80P80MHZ) },
1918 #ifdef IEEE8021X_EAPOL
1919         { FUNC(eap) },
1920         { STR_LENe(identity) },
1921         { STR_LENe(anonymous_identity) },
1922         { FUNC_KEY(password) },
1923         { STRe(ca_cert) },
1924         { STRe(ca_path) },
1925         { STRe(client_cert) },
1926         { STRe(private_key) },
1927         { STR_KEYe(private_key_passwd) },
1928         { STRe(dh_file) },
1929         { STRe(subject_match) },
1930         { STRe(altsubject_match) },
1931         { STRe(domain_suffix_match) },
1932         { STRe(domain_match) },
1933         { STRe(ca_cert2) },
1934         { STRe(ca_path2) },
1935         { STRe(client_cert2) },
1936         { STRe(private_key2) },
1937         { STR_KEYe(private_key2_passwd) },
1938         { STRe(dh_file2) },
1939         { STRe(subject_match2) },
1940         { STRe(altsubject_match2) },
1941         { STRe(domain_suffix_match2) },
1942         { STRe(domain_match2) },
1943         { STRe(phase1) },
1944         { STRe(phase2) },
1945         { STRe(pcsc) },
1946         { STR_KEYe(pin) },
1947         { STRe(engine_id) },
1948         { STRe(key_id) },
1949         { STRe(cert_id) },
1950         { STRe(ca_cert_id) },
1951         { STR_KEYe(pin2) },
1952         { STRe(engine2_id) },
1953         { STRe(key2_id) },
1954         { STRe(cert2_id) },
1955         { STRe(ca_cert2_id) },
1956         { INTe(engine) },
1957         { INTe(engine2) },
1958         { INT(eapol_flags) },
1959         { INTe(sim_num) },
1960         { STRe(openssl_ciphers) },
1961         { INTe(erp) },
1962 #endif /* IEEE8021X_EAPOL */
1963         { FUNC_KEY(wep_key0) },
1964         { FUNC_KEY(wep_key1) },
1965         { FUNC_KEY(wep_key2) },
1966         { FUNC_KEY(wep_key3) },
1967         { INT(wep_tx_keyidx) },
1968         { INT(priority) },
1969 #ifdef IEEE8021X_EAPOL
1970         { INT(eap_workaround) },
1971         { STRe(pac_file) },
1972         { INTe(fragment_size) },
1973         { INTe(ocsp) },
1974 #endif /* IEEE8021X_EAPOL */
1975 #ifdef CONFIG_MESH
1976         { INT_RANGE(mode, 0, 5) },
1977         { INT_RANGE(no_auto_peer, 0, 1) },
1978 #else /* CONFIG_MESH */
1979         { INT_RANGE(mode, 0, 4) },
1980 #endif /* CONFIG_MESH */
1981         { INT_RANGE(proactive_key_caching, 0, 1) },
1982         { INT_RANGE(disabled, 0, 2) },
1983         { STR(id_str) },
1984 #ifdef CONFIG_IEEE80211W
1985         { INT_RANGE(ieee80211w, 0, 2) },
1986 #endif /* CONFIG_IEEE80211W */
1987         { INT_RANGE(peerkey, 0, 1) },
1988         { INT_RANGE(mixed_cell, 0, 1) },
1989         { INT_RANGE(frequency, 0, 65000) },
1990         { INT_RANGE(fixed_freq, 0, 1) },
1991 #ifdef CONFIG_ACS
1992         { INT_RANGE(acs, 0, 1) },
1993 #endif /* CONFIG_ACS */
1994 #ifdef CONFIG_MESH
1995         { FUNC(mesh_basic_rates) },
1996         { INT(dot11MeshMaxRetries) },
1997         { INT(dot11MeshRetryTimeout) },
1998         { INT(dot11MeshConfirmTimeout) },
1999         { INT(dot11MeshHoldingTimeout) },
2000 #endif /* CONFIG_MESH */
2001         { INT(wpa_ptk_rekey) },
2002         { STR(bgscan) },
2003         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
2004 #ifdef CONFIG_P2P
2005         { FUNC(go_p2p_dev_addr) },
2006         { FUNC(p2p_client_list) },
2007         { FUNC(psk_list) },
2008 #endif /* CONFIG_P2P */
2009 #ifdef CONFIG_HT_OVERRIDES
2010         { INT_RANGE(disable_ht, 0, 1) },
2011         { INT_RANGE(disable_ht40, -1, 1) },
2012         { INT_RANGE(disable_sgi, 0, 1) },
2013         { INT_RANGE(disable_ldpc, 0, 1) },
2014         { INT_RANGE(ht40_intolerant, 0, 1) },
2015         { INT_RANGE(disable_max_amsdu, -1, 1) },
2016         { INT_RANGE(ampdu_factor, -1, 3) },
2017         { INT_RANGE(ampdu_density, -1, 7) },
2018         { STR(ht_mcs) },
2019 #endif /* CONFIG_HT_OVERRIDES */
2020 #ifdef CONFIG_VHT_OVERRIDES
2021         { INT_RANGE(disable_vht, 0, 1) },
2022         { INT(vht_capa) },
2023         { INT(vht_capa_mask) },
2024         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
2025         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
2026         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
2027         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
2028         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
2029         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
2030         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
2031         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
2032         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
2033         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
2034         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
2035         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
2036         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
2037         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
2038         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
2039         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
2040 #endif /* CONFIG_VHT_OVERRIDES */
2041         { INT(ap_max_inactivity) },
2042         { INT(dtim_period) },
2043         { INT(beacon_int) },
2044 #ifdef CONFIG_MACSEC
2045         { INT_RANGE(macsec_policy, 0, 1) },
2046 #endif /* CONFIG_MACSEC */
2047 #ifdef CONFIG_HS20
2048         { INT(update_identifier) },
2049 #endif /* CONFIG_HS20 */
2050         { INT_RANGE(mac_addr, 0, 2) },
2051         { INT_RANGE(pbss, 0, 2) },
2052 };
2053
2054 #undef OFFSET
2055 #undef _STR
2056 #undef STR
2057 #undef STR_KEY
2058 #undef _STR_LEN
2059 #undef STR_LEN
2060 #undef STR_LEN_KEY
2061 #undef _STR_RANGE
2062 #undef STR_RANGE
2063 #undef STR_RANGE_KEY
2064 #undef _INT
2065 #undef INT
2066 #undef INT_RANGE
2067 #undef _FUNC
2068 #undef FUNC
2069 #undef FUNC_KEY
2070 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
2071
2072
2073 /**
2074  * wpa_config_add_prio_network - Add a network to priority lists
2075  * @config: Configuration data from wpa_config_read()
2076  * @ssid: Pointer to the network configuration to be added to the list
2077  * Returns: 0 on success, -1 on failure
2078  *
2079  * This function is used to add a network block to the priority list of
2080  * networks. This must be called for each network when reading in the full
2081  * configuration. In addition, this can be used indirectly when updating
2082  * priorities by calling wpa_config_update_prio_list().
2083  */
2084 int wpa_config_add_prio_network(struct wpa_config *config,
2085                                 struct wpa_ssid *ssid)
2086 {
2087         int prio;
2088         struct wpa_ssid *prev, **nlist;
2089
2090         /*
2091          * Add to an existing priority list if one is available for the
2092          * configured priority level for this network.
2093          */
2094         for (prio = 0; prio < config->num_prio; prio++) {
2095                 prev = config->pssid[prio];
2096                 if (prev->priority == ssid->priority) {
2097                         while (prev->pnext)
2098                                 prev = prev->pnext;
2099                         prev->pnext = ssid;
2100                         return 0;
2101                 }
2102         }
2103
2104         /* First network for this priority - add a new priority list */
2105         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
2106                                  sizeof(struct wpa_ssid *));
2107         if (nlist == NULL)
2108                 return -1;
2109
2110         for (prio = 0; prio < config->num_prio; prio++) {
2111                 if (nlist[prio]->priority < ssid->priority) {
2112                         os_memmove(&nlist[prio + 1], &nlist[prio],
2113                                    (config->num_prio - prio) *
2114                                    sizeof(struct wpa_ssid *));
2115                         break;
2116                 }
2117         }
2118
2119         nlist[prio] = ssid;
2120         config->num_prio++;
2121         config->pssid = nlist;
2122
2123         return 0;
2124 }
2125
2126
2127 /**
2128  * wpa_config_update_prio_list - Update network priority list
2129  * @config: Configuration data from wpa_config_read()
2130  * Returns: 0 on success, -1 on failure
2131  *
2132  * This function is called to update the priority list of networks in the
2133  * configuration when a network is being added or removed. This is also called
2134  * if a priority for a network is changed.
2135  */
2136 int wpa_config_update_prio_list(struct wpa_config *config)
2137 {
2138         struct wpa_ssid *ssid;
2139         int ret = 0;
2140
2141         os_free(config->pssid);
2142         config->pssid = NULL;
2143         config->num_prio = 0;
2144
2145         ssid = config->ssid;
2146         while (ssid) {
2147                 ssid->pnext = NULL;
2148                 if (wpa_config_add_prio_network(config, ssid) < 0)
2149                         ret = -1;
2150                 ssid = ssid->next;
2151         }
2152
2153         return ret;
2154 }
2155
2156
2157 #ifdef IEEE8021X_EAPOL
2158 static void eap_peer_config_free(struct eap_peer_config *eap)
2159 {
2160         os_free(eap->eap_methods);
2161         bin_clear_free(eap->identity, eap->identity_len);
2162         os_free(eap->anonymous_identity);
2163         bin_clear_free(eap->password, eap->password_len);
2164         os_free(eap->ca_cert);
2165         os_free(eap->ca_path);
2166         os_free(eap->client_cert);
2167         os_free(eap->private_key);
2168         str_clear_free(eap->private_key_passwd);
2169         os_free(eap->dh_file);
2170         os_free(eap->subject_match);
2171         os_free(eap->altsubject_match);
2172         os_free(eap->domain_suffix_match);
2173         os_free(eap->domain_match);
2174         os_free(eap->ca_cert2);
2175         os_free(eap->ca_path2);
2176         os_free(eap->client_cert2);
2177         os_free(eap->private_key2);
2178         str_clear_free(eap->private_key2_passwd);
2179         os_free(eap->dh_file2);
2180         os_free(eap->subject_match2);
2181         os_free(eap->altsubject_match2);
2182         os_free(eap->domain_suffix_match2);
2183         os_free(eap->domain_match2);
2184         os_free(eap->phase1);
2185         os_free(eap->phase2);
2186         os_free(eap->pcsc);
2187         str_clear_free(eap->pin);
2188         os_free(eap->engine_id);
2189         os_free(eap->key_id);
2190         os_free(eap->cert_id);
2191         os_free(eap->ca_cert_id);
2192         os_free(eap->key2_id);
2193         os_free(eap->cert2_id);
2194         os_free(eap->ca_cert2_id);
2195         str_clear_free(eap->pin2);
2196         os_free(eap->engine2_id);
2197         os_free(eap->otp);
2198         os_free(eap->pending_req_otp);
2199         os_free(eap->pac_file);
2200         bin_clear_free(eap->new_password, eap->new_password_len);
2201         str_clear_free(eap->external_sim_resp);
2202         os_free(eap->openssl_ciphers);
2203 }
2204 #endif /* IEEE8021X_EAPOL */
2205
2206
2207 /**
2208  * wpa_config_free_ssid - Free network/ssid configuration data
2209  * @ssid: Configuration data for the network
2210  *
2211  * This function frees all resources allocated for the network configuration
2212  * data.
2213  */
2214 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2215 {
2216         struct psk_list_entry *psk;
2217
2218         os_free(ssid->ssid);
2219         str_clear_free(ssid->passphrase);
2220         os_free(ssid->ext_psk);
2221 #ifdef IEEE8021X_EAPOL
2222         eap_peer_config_free(&ssid->eap);
2223 #endif /* IEEE8021X_EAPOL */
2224         os_free(ssid->id_str);
2225         os_free(ssid->scan_freq);
2226         os_free(ssid->freq_list);
2227         os_free(ssid->bgscan);
2228         os_free(ssid->p2p_client_list);
2229         os_free(ssid->bssid_blacklist);
2230         os_free(ssid->bssid_whitelist);
2231 #ifdef CONFIG_HT_OVERRIDES
2232         os_free(ssid->ht_mcs);
2233 #endif /* CONFIG_HT_OVERRIDES */
2234 #ifdef CONFIG_MESH
2235         os_free(ssid->mesh_basic_rates);
2236 #endif /* CONFIG_MESH */
2237         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2238                                     list))) {
2239                 dl_list_del(&psk->list);
2240                 bin_clear_free(psk, sizeof(*psk));
2241         }
2242         bin_clear_free(ssid, sizeof(*ssid));
2243 }
2244
2245
2246 void wpa_config_free_cred(struct wpa_cred *cred)
2247 {
2248         size_t i;
2249
2250         os_free(cred->realm);
2251         str_clear_free(cred->username);
2252         str_clear_free(cred->password);
2253         os_free(cred->ca_cert);
2254         os_free(cred->client_cert);
2255         os_free(cred->private_key);
2256         str_clear_free(cred->private_key_passwd);
2257         os_free(cred->imsi);
2258         str_clear_free(cred->milenage);
2259         for (i = 0; i < cred->num_domain; i++)
2260                 os_free(cred->domain[i]);
2261         os_free(cred->domain);
2262         os_free(cred->domain_suffix_match);
2263         os_free(cred->eap_method);
2264         os_free(cred->phase1);
2265         os_free(cred->phase2);
2266         os_free(cred->excluded_ssid);
2267         os_free(cred->roaming_partner);
2268         os_free(cred->provisioning_sp);
2269         for (i = 0; i < cred->num_req_conn_capab; i++)
2270                 os_free(cred->req_conn_capab_port[i]);
2271         os_free(cred->req_conn_capab_port);
2272         os_free(cred->req_conn_capab_proto);
2273         os_free(cred);
2274 }
2275
2276
2277 void wpa_config_flush_blobs(struct wpa_config *config)
2278 {
2279 #ifndef CONFIG_NO_CONFIG_BLOBS
2280         struct wpa_config_blob *blob, *prev;
2281
2282         blob = config->blobs;
2283         config->blobs = NULL;
2284         while (blob) {
2285                 prev = blob;
2286                 blob = blob->next;
2287                 wpa_config_free_blob(prev);
2288         }
2289 #endif /* CONFIG_NO_CONFIG_BLOBS */
2290 }
2291
2292
2293 /**
2294  * wpa_config_free - Free configuration data
2295  * @config: Configuration data from wpa_config_read()
2296  *
2297  * This function frees all resources allocated for the configuration data by
2298  * wpa_config_read().
2299  */
2300 void wpa_config_free(struct wpa_config *config)
2301 {
2302         struct wpa_ssid *ssid, *prev = NULL;
2303         struct wpa_cred *cred, *cprev;
2304         int i;
2305
2306         ssid = config->ssid;
2307         while (ssid) {
2308                 prev = ssid;
2309                 ssid = ssid->next;
2310                 wpa_config_free_ssid(prev);
2311         }
2312
2313         cred = config->cred;
2314         while (cred) {
2315                 cprev = cred;
2316                 cred = cred->next;
2317                 wpa_config_free_cred(cprev);
2318         }
2319
2320         wpa_config_flush_blobs(config);
2321
2322         wpabuf_free(config->wps_vendor_ext_m1);
2323         for (i = 0; i < MAX_WPS_VENDOR_EXT; i++)
2324                 wpabuf_free(config->wps_vendor_ext[i]);
2325         os_free(config->ctrl_interface);
2326         os_free(config->ctrl_interface_group);
2327         os_free(config->opensc_engine_path);
2328         os_free(config->pkcs11_engine_path);
2329         os_free(config->pkcs11_module_path);
2330         os_free(config->openssl_ciphers);
2331         os_free(config->pcsc_reader);
2332         str_clear_free(config->pcsc_pin);
2333         os_free(config->driver_param);
2334         os_free(config->device_name);
2335         os_free(config->manufacturer);
2336         os_free(config->model_name);
2337         os_free(config->model_number);
2338         os_free(config->serial_number);
2339         os_free(config->config_methods);
2340         os_free(config->p2p_ssid_postfix);
2341         os_free(config->pssid);
2342         os_free(config->p2p_pref_chan);
2343         os_free(config->p2p_no_go_freq.range);
2344         os_free(config->autoscan);
2345         os_free(config->freq_list);
2346         wpabuf_free(config->wps_nfc_dh_pubkey);
2347         wpabuf_free(config->wps_nfc_dh_privkey);
2348         wpabuf_free(config->wps_nfc_dev_pw);
2349         os_free(config->ext_password_backend);
2350         os_free(config->sae_groups);
2351         wpabuf_free(config->ap_vendor_elements);
2352         os_free(config->osu_dir);
2353         os_free(config->bgscan);
2354         os_free(config->wowlan_triggers);
2355         os_free(config->fst_group_id);
2356         os_free(config->sched_scan_plans);
2357 #ifdef CONFIG_MBO
2358         os_free(config->non_pref_chan);
2359 #endif /* CONFIG_MBO */
2360
2361         os_free(config);
2362 }
2363
2364
2365 /**
2366  * wpa_config_foreach_network - Iterate over each configured network
2367  * @config: Configuration data from wpa_config_read()
2368  * @func: Callback function to process each network
2369  * @arg: Opaque argument to pass to callback function
2370  *
2371  * Iterate over the set of configured networks calling the specified
2372  * function for each item. We guard against callbacks removing the
2373  * supplied network.
2374  */
2375 void wpa_config_foreach_network(struct wpa_config *config,
2376                                 void (*func)(void *, struct wpa_ssid *),
2377                                 void *arg)
2378 {
2379         struct wpa_ssid *ssid, *next;
2380
2381         ssid = config->ssid;
2382         while (ssid) {
2383                 next = ssid->next;
2384                 func(arg, ssid);
2385                 ssid = next;
2386         }
2387 }
2388
2389
2390 /**
2391  * wpa_config_get_network - Get configured network based on id
2392  * @config: Configuration data from wpa_config_read()
2393  * @id: Unique network id to search for
2394  * Returns: Network configuration or %NULL if not found
2395  */
2396 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2397 {
2398         struct wpa_ssid *ssid;
2399
2400         ssid = config->ssid;
2401         while (ssid) {
2402                 if (id == ssid->id)
2403                         break;
2404                 ssid = ssid->next;
2405         }
2406
2407         return ssid;
2408 }
2409
2410
2411 /**
2412  * wpa_config_add_network - Add a new network with empty configuration
2413  * @config: Configuration data from wpa_config_read()
2414  * Returns: The new network configuration or %NULL if operation failed
2415  */
2416 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2417 {
2418         int id;
2419         struct wpa_ssid *ssid, *last = NULL;
2420
2421         id = -1;
2422         ssid = config->ssid;
2423         while (ssid) {
2424                 if (ssid->id > id)
2425                         id = ssid->id;
2426                 last = ssid;
2427                 ssid = ssid->next;
2428         }
2429         id++;
2430
2431         ssid = os_zalloc(sizeof(*ssid));
2432         if (ssid == NULL)
2433                 return NULL;
2434         ssid->id = id;
2435         dl_list_init(&ssid->psk_list);
2436         if (last)
2437                 last->next = ssid;
2438         else
2439                 config->ssid = ssid;
2440
2441         wpa_config_update_prio_list(config);
2442
2443         return ssid;
2444 }
2445
2446
2447 /**
2448  * wpa_config_remove_network - Remove a configured network based on id
2449  * @config: Configuration data from wpa_config_read()
2450  * @id: Unique network id to search for
2451  * Returns: 0 on success, or -1 if the network was not found
2452  */
2453 int wpa_config_remove_network(struct wpa_config *config, int id)
2454 {
2455         struct wpa_ssid *ssid, *prev = NULL;
2456
2457         ssid = config->ssid;
2458         while (ssid) {
2459                 if (id == ssid->id)
2460                         break;
2461                 prev = ssid;
2462                 ssid = ssid->next;
2463         }
2464
2465         if (ssid == NULL)
2466                 return -1;
2467
2468         if (prev)
2469                 prev->next = ssid->next;
2470         else
2471                 config->ssid = ssid->next;
2472
2473         wpa_config_update_prio_list(config);
2474         wpa_config_free_ssid(ssid);
2475         return 0;
2476 }
2477
2478
2479 /**
2480  * wpa_config_set_network_defaults - Set network default values
2481  * @ssid: Pointer to network configuration data
2482  */
2483 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2484 {
2485         ssid->proto = DEFAULT_PROTO;
2486         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2487         ssid->group_cipher = DEFAULT_GROUP;
2488         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2489         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2490 #ifdef IEEE8021X_EAPOL
2491         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2492         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2493         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2494         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2495 #endif /* IEEE8021X_EAPOL */
2496 #ifdef CONFIG_MESH
2497         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2498         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2499         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2500         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2501 #endif /* CONFIG_MESH */
2502 #ifdef CONFIG_HT_OVERRIDES
2503         ssid->disable_ht = DEFAULT_DISABLE_HT;
2504         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2505         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2506         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2507         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2508         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2509         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2510 #endif /* CONFIG_HT_OVERRIDES */
2511 #ifdef CONFIG_VHT_OVERRIDES
2512         ssid->vht_rx_mcs_nss_1 = -1;
2513         ssid->vht_rx_mcs_nss_2 = -1;
2514         ssid->vht_rx_mcs_nss_3 = -1;
2515         ssid->vht_rx_mcs_nss_4 = -1;
2516         ssid->vht_rx_mcs_nss_5 = -1;
2517         ssid->vht_rx_mcs_nss_6 = -1;
2518         ssid->vht_rx_mcs_nss_7 = -1;
2519         ssid->vht_rx_mcs_nss_8 = -1;
2520         ssid->vht_tx_mcs_nss_1 = -1;
2521         ssid->vht_tx_mcs_nss_2 = -1;
2522         ssid->vht_tx_mcs_nss_3 = -1;
2523         ssid->vht_tx_mcs_nss_4 = -1;
2524         ssid->vht_tx_mcs_nss_5 = -1;
2525         ssid->vht_tx_mcs_nss_6 = -1;
2526         ssid->vht_tx_mcs_nss_7 = -1;
2527         ssid->vht_tx_mcs_nss_8 = -1;
2528 #endif /* CONFIG_VHT_OVERRIDES */
2529         ssid->proactive_key_caching = -1;
2530 #ifdef CONFIG_IEEE80211W
2531         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2532 #endif /* CONFIG_IEEE80211W */
2533         ssid->mac_addr = -1;
2534 }
2535
2536
2537 /**
2538  * wpa_config_set - Set a variable in network configuration
2539  * @ssid: Pointer to network configuration data
2540  * @var: Variable name, e.g., "ssid"
2541  * @value: Variable value
2542  * @line: Line number in configuration file or 0 if not used
2543  * Returns: 0 on success with possible change in the value, 1 on success with
2544  * no change to previously configured value, or -1 on failure
2545  *
2546  * This function can be used to set network configuration variables based on
2547  * both the configuration file and management interface input. The value
2548  * parameter must be in the same format as the text-based configuration file is
2549  * using. For example, strings are using double quotation marks.
2550  */
2551 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2552                    int line)
2553 {
2554         size_t i;
2555         int ret = 0;
2556
2557         if (ssid == NULL || var == NULL || value == NULL)
2558                 return -1;
2559
2560         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2561                 const struct parse_data *field = &ssid_fields[i];
2562                 if (os_strcmp(var, field->name) != 0)
2563                         continue;
2564
2565                 ret = field->parser(field, ssid, line, value);
2566                 if (ret < 0) {
2567                         if (line) {
2568                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2569                                            "parse %s '%s'.", line, var, value);
2570                         }
2571                         ret = -1;
2572                 }
2573                 break;
2574         }
2575         if (i == NUM_SSID_FIELDS) {
2576                 if (line) {
2577                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2578                                    "'%s'.", line, var);
2579                 }
2580                 ret = -1;
2581         }
2582
2583         return ret;
2584 }
2585
2586
2587 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2588                           const char *value)
2589 {
2590         size_t len;
2591         char *buf;
2592         int ret;
2593
2594         len = os_strlen(value);
2595         buf = os_malloc(len + 3);
2596         if (buf == NULL)
2597                 return -1;
2598         buf[0] = '"';
2599         os_memcpy(buf + 1, value, len);
2600         buf[len + 1] = '"';
2601         buf[len + 2] = '\0';
2602         ret = wpa_config_set(ssid, var, buf, 0);
2603         os_free(buf);
2604         return ret;
2605 }
2606
2607
2608 /**
2609  * wpa_config_get_all - Get all options from network configuration
2610  * @ssid: Pointer to network configuration data
2611  * @get_keys: Determines if keys/passwords will be included in returned list
2612  *      (if they may be exported)
2613  * Returns: %NULL terminated list of all set keys and their values in the form
2614  * of [key1, val1, key2, val2, ... , NULL]
2615  *
2616  * This function can be used to get list of all configured network properties.
2617  * The caller is responsible for freeing the returned list and all its
2618  * elements.
2619  */
2620 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2621 {
2622 #ifdef NO_CONFIG_WRITE
2623         return NULL;
2624 #else /* NO_CONFIG_WRITE */
2625         const struct parse_data *field;
2626         char *key, *value;
2627         size_t i;
2628         char **props;
2629         int fields_num;
2630
2631         get_keys = get_keys && ssid->export_keys;
2632
2633         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2634         if (!props)
2635                 return NULL;
2636
2637         fields_num = 0;
2638         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2639                 field = &ssid_fields[i];
2640                 if (field->key_data && !get_keys)
2641                         continue;
2642                 value = field->writer(field, ssid);
2643                 if (value == NULL)
2644                         continue;
2645                 if (os_strlen(value) == 0) {
2646                         os_free(value);
2647                         continue;
2648                 }
2649
2650                 key = os_strdup(field->name);
2651                 if (key == NULL) {
2652                         os_free(value);
2653                         goto err;
2654                 }
2655
2656                 props[fields_num * 2] = key;
2657                 props[fields_num * 2 + 1] = value;
2658
2659                 fields_num++;
2660         }
2661
2662         return props;
2663
2664 err:
2665         value = *props;
2666         while (value)
2667                 os_free(value++);
2668         os_free(props);
2669         return NULL;
2670 #endif /* NO_CONFIG_WRITE */
2671 }
2672
2673
2674 #ifndef NO_CONFIG_WRITE
2675 /**
2676  * wpa_config_get - Get a variable in network configuration
2677  * @ssid: Pointer to network configuration data
2678  * @var: Variable name, e.g., "ssid"
2679  * Returns: Value of the variable or %NULL on failure
2680  *
2681  * This function can be used to get network configuration variables. The
2682  * returned value is a copy of the configuration variable in text format, i.e,.
2683  * the same format that the text-based configuration file and wpa_config_set()
2684  * are using for the value. The caller is responsible for freeing the returned
2685  * value.
2686  */
2687 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2688 {
2689         size_t i;
2690
2691         if (ssid == NULL || var == NULL)
2692                 return NULL;
2693
2694         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2695                 const struct parse_data *field = &ssid_fields[i];
2696                 if (os_strcmp(var, field->name) == 0)
2697                         return field->writer(field, ssid);
2698         }
2699
2700         return NULL;
2701 }
2702
2703
2704 /**
2705  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2706  * @ssid: Pointer to network configuration data
2707  * @var: Variable name, e.g., "ssid"
2708  * Returns: Value of the variable or %NULL on failure
2709  *
2710  * This function can be used to get network configuration variable like
2711  * wpa_config_get(). The only difference is that this functions does not expose
2712  * key/password material from the configuration. In case a key/password field
2713  * is requested, the returned value is an empty string or %NULL if the variable
2714  * is not set or "*" if the variable is set (regardless of its value). The
2715  * returned value is a copy of the configuration variable in text format, i.e,.
2716  * the same format that the text-based configuration file and wpa_config_set()
2717  * are using for the value. The caller is responsible for freeing the returned
2718  * value.
2719  */
2720 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2721 {
2722         size_t i;
2723
2724         if (ssid == NULL || var == NULL)
2725                 return NULL;
2726
2727         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2728                 const struct parse_data *field = &ssid_fields[i];
2729                 if (os_strcmp(var, field->name) == 0) {
2730                         char *res = field->writer(field, ssid);
2731                         if (field->key_data) {
2732                                 if (res && res[0]) {
2733                                         wpa_printf(MSG_DEBUG, "Do not allow "
2734                                                    "key_data field to be "
2735                                                    "exposed");
2736                                         str_clear_free(res);
2737                                         return os_strdup("*");
2738                                 }
2739
2740                                 os_free(res);
2741                                 return NULL;
2742                         }
2743                         return res;
2744                 }
2745         }
2746
2747         return NULL;
2748 }
2749 #endif /* NO_CONFIG_WRITE */
2750
2751
2752 /**
2753  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2754  * @ssid: Pointer to network configuration data
2755  *
2756  * This function must be called to update WPA PSK when either SSID or the
2757  * passphrase has changed for the network configuration.
2758  */
2759 void wpa_config_update_psk(struct wpa_ssid *ssid)
2760 {
2761 #ifndef CONFIG_NO_PBKDF2
2762         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2763                     ssid->psk, PMK_LEN);
2764         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2765                         ssid->psk, PMK_LEN);
2766         ssid->psk_set = 1;
2767 #endif /* CONFIG_NO_PBKDF2 */
2768 }
2769
2770
2771 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2772                                               const char *value)
2773 {
2774         u8 *proto;
2775         int **port;
2776         int *ports, *nports;
2777         const char *pos;
2778         unsigned int num_ports;
2779
2780         proto = os_realloc_array(cred->req_conn_capab_proto,
2781                                  cred->num_req_conn_capab + 1, sizeof(u8));
2782         if (proto == NULL)
2783                 return -1;
2784         cred->req_conn_capab_proto = proto;
2785
2786         port = os_realloc_array(cred->req_conn_capab_port,
2787                                 cred->num_req_conn_capab + 1, sizeof(int *));
2788         if (port == NULL)
2789                 return -1;
2790         cred->req_conn_capab_port = port;
2791
2792         proto[cred->num_req_conn_capab] = atoi(value);
2793
2794         pos = os_strchr(value, ':');
2795         if (pos == NULL) {
2796                 port[cred->num_req_conn_capab] = NULL;
2797                 cred->num_req_conn_capab++;
2798                 return 0;
2799         }
2800         pos++;
2801
2802         ports = NULL;
2803         num_ports = 0;
2804
2805         while (*pos) {
2806                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2807                 if (nports == NULL) {
2808                         os_free(ports);
2809                         return -1;
2810                 }
2811                 ports = nports;
2812                 ports[num_ports++] = atoi(pos);
2813
2814                 pos = os_strchr(pos, ',');
2815                 if (pos == NULL)
2816                         break;
2817                 pos++;
2818         }
2819
2820         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2821         if (nports == NULL) {
2822                 os_free(ports);
2823                 return -1;
2824         }
2825         ports = nports;
2826         ports[num_ports] = -1;
2827
2828         port[cred->num_req_conn_capab] = ports;
2829         cred->num_req_conn_capab++;
2830         return 0;
2831 }
2832
2833
2834 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2835                         const char *value, int line)
2836 {
2837         char *val;
2838         size_t len;
2839
2840         if (os_strcmp(var, "temporary") == 0) {
2841                 cred->temporary = atoi(value);
2842                 return 0;
2843         }
2844
2845         if (os_strcmp(var, "priority") == 0) {
2846                 cred->priority = atoi(value);
2847                 return 0;
2848         }
2849
2850         if (os_strcmp(var, "sp_priority") == 0) {
2851                 int prio = atoi(value);
2852                 if (prio < 0 || prio > 255)
2853                         return -1;
2854                 cred->sp_priority = prio;
2855                 return 0;
2856         }
2857
2858         if (os_strcmp(var, "pcsc") == 0) {
2859                 cred->pcsc = atoi(value);
2860                 return 0;
2861         }
2862
2863         if (os_strcmp(var, "eap") == 0) {
2864                 struct eap_method_type method;
2865                 method.method = eap_peer_get_type(value, &method.vendor);
2866                 if (method.vendor == EAP_VENDOR_IETF &&
2867                     method.method == EAP_TYPE_NONE) {
2868                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2869                                    "for a credential", line, value);
2870                         return -1;
2871                 }
2872                 os_free(cred->eap_method);
2873                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2874                 if (cred->eap_method == NULL)
2875                         return -1;
2876                 os_memcpy(cred->eap_method, &method, sizeof(method));
2877                 return 0;
2878         }
2879
2880         if (os_strcmp(var, "password") == 0 &&
2881             os_strncmp(value, "ext:", 4) == 0) {
2882                 str_clear_free(cred->password);
2883                 cred->password = os_strdup(value);
2884                 cred->ext_password = 1;
2885                 return 0;
2886         }
2887
2888         if (os_strcmp(var, "update_identifier") == 0) {
2889                 cred->update_identifier = atoi(value);
2890                 return 0;
2891         }
2892
2893         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2894                 cred->min_dl_bandwidth_home = atoi(value);
2895                 return 0;
2896         }
2897
2898         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2899                 cred->min_ul_bandwidth_home = atoi(value);
2900                 return 0;
2901         }
2902
2903         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2904                 cred->min_dl_bandwidth_roaming = atoi(value);
2905                 return 0;
2906         }
2907
2908         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2909                 cred->min_ul_bandwidth_roaming = atoi(value);
2910                 return 0;
2911         }
2912
2913         if (os_strcmp(var, "max_bss_load") == 0) {
2914                 cred->max_bss_load = atoi(value);
2915                 return 0;
2916         }
2917
2918         if (os_strcmp(var, "req_conn_capab") == 0)
2919                 return wpa_config_set_cred_req_conn_capab(cred, value);
2920
2921         if (os_strcmp(var, "ocsp") == 0) {
2922                 cred->ocsp = atoi(value);
2923                 return 0;
2924         }
2925
2926         if (os_strcmp(var, "sim_num") == 0) {
2927                 cred->sim_num = atoi(value);
2928                 return 0;
2929         }
2930
2931         val = wpa_config_parse_string(value, &len);
2932         if (val == NULL) {
2933                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2934                            "value '%s'.", line, var, value);
2935                 return -1;
2936         }
2937
2938         if (os_strcmp(var, "realm") == 0) {
2939                 os_free(cred->realm);
2940                 cred->realm = val;
2941                 return 0;
2942         }
2943
2944         if (os_strcmp(var, "username") == 0) {
2945                 str_clear_free(cred->username);
2946                 cred->username = val;
2947                 return 0;
2948         }
2949
2950         if (os_strcmp(var, "password") == 0) {
2951                 str_clear_free(cred->password);
2952                 cred->password = val;
2953                 cred->ext_password = 0;
2954                 return 0;
2955         }
2956
2957         if (os_strcmp(var, "ca_cert") == 0) {
2958                 os_free(cred->ca_cert);
2959                 cred->ca_cert = val;
2960                 return 0;
2961         }
2962
2963         if (os_strcmp(var, "client_cert") == 0) {
2964                 os_free(cred->client_cert);
2965                 cred->client_cert = val;
2966                 return 0;
2967         }
2968
2969         if (os_strcmp(var, "private_key") == 0) {
2970                 os_free(cred->private_key);
2971                 cred->private_key = val;
2972                 return 0;
2973         }
2974
2975         if (os_strcmp(var, "private_key_passwd") == 0) {
2976                 str_clear_free(cred->private_key_passwd);
2977                 cred->private_key_passwd = val;
2978                 return 0;
2979         }
2980
2981         if (os_strcmp(var, "imsi") == 0) {
2982                 os_free(cred->imsi);
2983                 cred->imsi = val;
2984                 return 0;
2985         }
2986
2987         if (os_strcmp(var, "milenage") == 0) {
2988                 str_clear_free(cred->milenage);
2989                 cred->milenage = val;
2990                 return 0;
2991         }
2992
2993         if (os_strcmp(var, "domain_suffix_match") == 0) {
2994                 os_free(cred->domain_suffix_match);
2995                 cred->domain_suffix_match = val;
2996                 return 0;
2997         }
2998
2999         if (os_strcmp(var, "domain") == 0) {
3000                 char **new_domain;
3001                 new_domain = os_realloc_array(cred->domain,
3002                                               cred->num_domain + 1,
3003                                               sizeof(char *));
3004                 if (new_domain == NULL) {
3005                         os_free(val);
3006                         return -1;
3007                 }
3008                 new_domain[cred->num_domain++] = val;
3009                 cred->domain = new_domain;
3010                 return 0;
3011         }
3012
3013         if (os_strcmp(var, "phase1") == 0) {
3014                 os_free(cred->phase1);
3015                 cred->phase1 = val;
3016                 return 0;
3017         }
3018
3019         if (os_strcmp(var, "phase2") == 0) {
3020                 os_free(cred->phase2);
3021                 cred->phase2 = val;
3022                 return 0;
3023         }
3024
3025         if (os_strcmp(var, "roaming_consortium") == 0) {
3026                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
3027                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3028                                    "roaming_consortium length %d (3..15 "
3029                                    "expected)", line, (int) len);
3030                         os_free(val);
3031                         return -1;
3032                 }
3033                 os_memcpy(cred->roaming_consortium, val, len);
3034                 cred->roaming_consortium_len = len;
3035                 os_free(val);
3036                 return 0;
3037         }
3038
3039         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3040                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
3041                 {
3042                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3043                                    "required_roaming_consortium length %d "
3044                                    "(3..15 expected)", line, (int) len);
3045                         os_free(val);
3046                         return -1;
3047                 }
3048                 os_memcpy(cred->required_roaming_consortium, val, len);
3049                 cred->required_roaming_consortium_len = len;
3050                 os_free(val);
3051                 return 0;
3052         }
3053
3054         if (os_strcmp(var, "excluded_ssid") == 0) {
3055                 struct excluded_ssid *e;
3056
3057                 if (len > SSID_MAX_LEN) {
3058                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3059                                    "excluded_ssid length %d", line, (int) len);
3060                         os_free(val);
3061                         return -1;
3062                 }
3063
3064                 e = os_realloc_array(cred->excluded_ssid,
3065                                      cred->num_excluded_ssid + 1,
3066                                      sizeof(struct excluded_ssid));
3067                 if (e == NULL) {
3068                         os_free(val);
3069                         return -1;
3070                 }
3071                 cred->excluded_ssid = e;
3072
3073                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
3074                 os_memcpy(e->ssid, val, len);
3075                 e->ssid_len = len;
3076
3077                 os_free(val);
3078
3079                 return 0;
3080         }
3081
3082         if (os_strcmp(var, "roaming_partner") == 0) {
3083                 struct roaming_partner *p;
3084                 char *pos;
3085
3086                 p = os_realloc_array(cred->roaming_partner,
3087                                      cred->num_roaming_partner + 1,
3088                                      sizeof(struct roaming_partner));
3089                 if (p == NULL) {
3090                         os_free(val);
3091                         return -1;
3092                 }
3093                 cred->roaming_partner = p;
3094
3095                 p = &cred->roaming_partner[cred->num_roaming_partner];
3096
3097                 pos = os_strchr(val, ',');
3098                 if (pos == NULL) {
3099                         os_free(val);
3100                         return -1;
3101                 }
3102                 *pos++ = '\0';
3103                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
3104                         os_free(val);
3105                         return -1;
3106                 }
3107                 os_memcpy(p->fqdn, val, pos - val);
3108
3109                 p->exact_match = atoi(pos);
3110
3111                 pos = os_strchr(pos, ',');
3112                 if (pos == NULL) {
3113                         os_free(val);
3114                         return -1;
3115                 }
3116                 *pos++ = '\0';
3117
3118                 p->priority = atoi(pos);
3119
3120                 pos = os_strchr(pos, ',');
3121                 if (pos == NULL) {
3122                         os_free(val);
3123                         return -1;
3124                 }
3125                 *pos++ = '\0';
3126
3127                 if (os_strlen(pos) >= sizeof(p->country)) {
3128                         os_free(val);
3129                         return -1;
3130                 }
3131                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
3132
3133                 cred->num_roaming_partner++;
3134                 os_free(val);
3135
3136                 return 0;
3137         }
3138
3139         if (os_strcmp(var, "provisioning_sp") == 0) {
3140                 os_free(cred->provisioning_sp);
3141                 cred->provisioning_sp = val;
3142                 return 0;
3143         }
3144
3145         if (line) {
3146                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
3147                            line, var);
3148         }
3149
3150         os_free(val);
3151
3152         return -1;
3153 }
3154
3155
3156 static char * alloc_int_str(int val)
3157 {
3158         const unsigned int bufsize = 20;
3159         char *buf;
3160         int res;
3161
3162         buf = os_malloc(bufsize);
3163         if (buf == NULL)
3164                 return NULL;
3165         res = os_snprintf(buf, bufsize, "%d", val);
3166         if (os_snprintf_error(bufsize, res)) {
3167                 os_free(buf);
3168                 buf = NULL;
3169         }
3170         return buf;
3171 }
3172
3173
3174 static char * alloc_strdup(const char *str)
3175 {
3176         if (str == NULL)
3177                 return NULL;
3178         return os_strdup(str);
3179 }
3180
3181
3182 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3183 {
3184         if (os_strcmp(var, "temporary") == 0)
3185                 return alloc_int_str(cred->temporary);
3186
3187         if (os_strcmp(var, "priority") == 0)
3188                 return alloc_int_str(cred->priority);
3189
3190         if (os_strcmp(var, "sp_priority") == 0)
3191                 return alloc_int_str(cred->sp_priority);
3192
3193         if (os_strcmp(var, "pcsc") == 0)
3194                 return alloc_int_str(cred->pcsc);
3195
3196         if (os_strcmp(var, "eap") == 0) {
3197                 if (!cred->eap_method)
3198                         return NULL;
3199                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3200                                                  cred->eap_method[0].method));
3201         }
3202
3203         if (os_strcmp(var, "update_identifier") == 0)
3204                 return alloc_int_str(cred->update_identifier);
3205
3206         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3207                 return alloc_int_str(cred->min_dl_bandwidth_home);
3208
3209         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3210                 return alloc_int_str(cred->min_ul_bandwidth_home);
3211
3212         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3213                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3214
3215         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3216                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3217
3218         if (os_strcmp(var, "max_bss_load") == 0)
3219                 return alloc_int_str(cred->max_bss_load);
3220
3221         if (os_strcmp(var, "req_conn_capab") == 0) {
3222                 unsigned int i;
3223                 char *buf, *end, *pos;
3224                 int ret;
3225
3226                 if (!cred->num_req_conn_capab)
3227                         return NULL;
3228
3229                 buf = os_malloc(4000);
3230                 if (buf == NULL)
3231                         return NULL;
3232                 pos = buf;
3233                 end = pos + 4000;
3234                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3235                         int *ports;
3236
3237                         ret = os_snprintf(pos, end - pos, "%s%u",
3238                                           i > 0 ? "\n" : "",
3239                                           cred->req_conn_capab_proto[i]);
3240                         if (os_snprintf_error(end - pos, ret))
3241                                 return buf;
3242                         pos += ret;
3243
3244                         ports = cred->req_conn_capab_port[i];
3245                         if (ports) {
3246                                 int j;
3247                                 for (j = 0; ports[j] != -1; j++) {
3248                                         ret = os_snprintf(pos, end - pos,
3249                                                           "%s%d",
3250                                                           j > 0 ? "," : ":",
3251                                                           ports[j]);
3252                                         if (os_snprintf_error(end - pos, ret))
3253                                                 return buf;
3254                                         pos += ret;
3255                                 }
3256                         }
3257                 }
3258
3259                 return buf;
3260         }
3261
3262         if (os_strcmp(var, "ocsp") == 0)
3263                 return alloc_int_str(cred->ocsp);
3264
3265         if (os_strcmp(var, "realm") == 0)
3266                 return alloc_strdup(cred->realm);
3267
3268         if (os_strcmp(var, "username") == 0)
3269                 return alloc_strdup(cred->username);
3270
3271         if (os_strcmp(var, "password") == 0) {
3272                 if (!cred->password)
3273                         return NULL;
3274                 return alloc_strdup("*");
3275         }
3276
3277         if (os_strcmp(var, "ca_cert") == 0)
3278                 return alloc_strdup(cred->ca_cert);
3279
3280         if (os_strcmp(var, "client_cert") == 0)
3281                 return alloc_strdup(cred->client_cert);
3282
3283         if (os_strcmp(var, "private_key") == 0)
3284                 return alloc_strdup(cred->private_key);
3285
3286         if (os_strcmp(var, "private_key_passwd") == 0) {
3287                 if (!cred->private_key_passwd)
3288                         return NULL;
3289                 return alloc_strdup("*");
3290         }
3291
3292         if (os_strcmp(var, "imsi") == 0)
3293                 return alloc_strdup(cred->imsi);
3294
3295         if (os_strcmp(var, "milenage") == 0) {
3296                 if (!(cred->milenage))
3297                         return NULL;
3298                 return alloc_strdup("*");
3299         }
3300
3301         if (os_strcmp(var, "domain_suffix_match") == 0)
3302                 return alloc_strdup(cred->domain_suffix_match);
3303
3304         if (os_strcmp(var, "domain") == 0) {
3305                 unsigned int i;
3306                 char *buf, *end, *pos;
3307                 int ret;
3308
3309                 if (!cred->num_domain)
3310                         return NULL;
3311
3312                 buf = os_malloc(4000);
3313                 if (buf == NULL)
3314                         return NULL;
3315                 pos = buf;
3316                 end = pos + 4000;
3317
3318                 for (i = 0; i < cred->num_domain; i++) {
3319                         ret = os_snprintf(pos, end - pos, "%s%s",
3320                                           i > 0 ? "\n" : "", cred->domain[i]);
3321                         if (os_snprintf_error(end - pos, ret))
3322                                 return buf;
3323                         pos += ret;
3324                 }
3325
3326                 return buf;
3327         }
3328
3329         if (os_strcmp(var, "phase1") == 0)
3330                 return alloc_strdup(cred->phase1);
3331
3332         if (os_strcmp(var, "phase2") == 0)
3333                 return alloc_strdup(cred->phase2);
3334
3335         if (os_strcmp(var, "roaming_consortium") == 0) {
3336                 size_t buflen;
3337                 char *buf;
3338
3339                 if (!cred->roaming_consortium_len)
3340                         return NULL;
3341                 buflen = cred->roaming_consortium_len * 2 + 1;
3342                 buf = os_malloc(buflen);
3343                 if (buf == NULL)
3344                         return NULL;
3345                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3346                                  cred->roaming_consortium_len);
3347                 return buf;
3348         }
3349
3350         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3351                 size_t buflen;
3352                 char *buf;
3353
3354                 if (!cred->required_roaming_consortium_len)
3355                         return NULL;
3356                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3357                 buf = os_malloc(buflen);
3358                 if (buf == NULL)
3359                         return NULL;
3360                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3361                                  cred->required_roaming_consortium_len);
3362                 return buf;
3363         }
3364
3365         if (os_strcmp(var, "excluded_ssid") == 0) {
3366                 unsigned int i;
3367                 char *buf, *end, *pos;
3368
3369                 if (!cred->num_excluded_ssid)
3370                         return NULL;
3371
3372                 buf = os_malloc(4000);
3373                 if (buf == NULL)
3374                         return NULL;
3375                 pos = buf;
3376                 end = pos + 4000;
3377
3378                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3379                         struct excluded_ssid *e;
3380                         int ret;
3381
3382                         e = &cred->excluded_ssid[i];
3383                         ret = os_snprintf(pos, end - pos, "%s%s",
3384                                           i > 0 ? "\n" : "",
3385                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3386                         if (os_snprintf_error(end - pos, ret))
3387                                 return buf;
3388                         pos += ret;
3389                 }
3390
3391                 return buf;
3392         }
3393
3394         if (os_strcmp(var, "roaming_partner") == 0) {
3395                 unsigned int i;
3396                 char *buf, *end, *pos;
3397
3398                 if (!cred->num_roaming_partner)
3399                         return NULL;
3400
3401                 buf = os_malloc(4000);
3402                 if (buf == NULL)
3403                         return NULL;
3404                 pos = buf;
3405                 end = pos + 4000;
3406
3407                 for (i = 0; i < cred->num_roaming_partner; i++) {
3408                         struct roaming_partner *p;
3409                         int ret;
3410
3411                         p = &cred->roaming_partner[i];
3412                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3413                                           i > 0 ? "\n" : "",
3414                                           p->fqdn, p->exact_match, p->priority,
3415                                           p->country);
3416                         if (os_snprintf_error(end - pos, ret))
3417                                 return buf;
3418                         pos += ret;
3419                 }
3420
3421                 return buf;
3422         }
3423
3424         if (os_strcmp(var, "provisioning_sp") == 0)
3425                 return alloc_strdup(cred->provisioning_sp);
3426
3427         return NULL;
3428 }
3429
3430
3431 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3432 {
3433         struct wpa_cred *cred;
3434
3435         cred = config->cred;
3436         while (cred) {
3437                 if (id == cred->id)
3438                         break;
3439                 cred = cred->next;
3440         }
3441
3442         return cred;
3443 }
3444
3445
3446 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3447 {
3448         int id;
3449         struct wpa_cred *cred, *last = NULL;
3450
3451         id = -1;
3452         cred = config->cred;
3453         while (cred) {
3454                 if (cred->id > id)
3455                         id = cred->id;
3456                 last = cred;
3457                 cred = cred->next;
3458         }
3459         id++;
3460
3461         cred = os_zalloc(sizeof(*cred));
3462         if (cred == NULL)
3463                 return NULL;
3464         cred->id = id;
3465         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3466         if (last)
3467                 last->next = cred;
3468         else
3469                 config->cred = cred;
3470
3471         return cred;
3472 }
3473
3474
3475 int wpa_config_remove_cred(struct wpa_config *config, int id)
3476 {
3477         struct wpa_cred *cred, *prev = NULL;
3478
3479         cred = config->cred;
3480         while (cred) {
3481                 if (id == cred->id)
3482                         break;
3483                 prev = cred;
3484                 cred = cred->next;
3485         }
3486
3487         if (cred == NULL)
3488                 return -1;
3489
3490         if (prev)
3491                 prev->next = cred->next;
3492         else
3493                 config->cred = cred->next;
3494
3495         wpa_config_free_cred(cred);
3496         return 0;
3497 }
3498
3499
3500 #ifndef CONFIG_NO_CONFIG_BLOBS
3501 /**
3502  * wpa_config_get_blob - Get a named configuration blob
3503  * @config: Configuration data from wpa_config_read()
3504  * @name: Name of the blob
3505  * Returns: Pointer to blob data or %NULL if not found
3506  */
3507 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3508                                                    const char *name)
3509 {
3510         struct wpa_config_blob *blob = config->blobs;
3511
3512         while (blob) {
3513                 if (os_strcmp(blob->name, name) == 0)
3514                         return blob;
3515                 blob = blob->next;
3516         }
3517         return NULL;
3518 }
3519
3520
3521 /**
3522  * wpa_config_set_blob - Set or add a named configuration blob
3523  * @config: Configuration data from wpa_config_read()
3524  * @blob: New value for the blob
3525  *
3526  * Adds a new configuration blob or replaces the current value of an existing
3527  * blob.
3528  */
3529 void wpa_config_set_blob(struct wpa_config *config,
3530                          struct wpa_config_blob *blob)
3531 {
3532         wpa_config_remove_blob(config, blob->name);
3533         blob->next = config->blobs;
3534         config->blobs = blob;
3535 }
3536
3537
3538 /**
3539  * wpa_config_free_blob - Free blob data
3540  * @blob: Pointer to blob to be freed
3541  */
3542 void wpa_config_free_blob(struct wpa_config_blob *blob)
3543 {
3544         if (blob) {
3545                 os_free(blob->name);
3546                 bin_clear_free(blob->data, blob->len);
3547                 os_free(blob);
3548         }
3549 }
3550
3551
3552 /**
3553  * wpa_config_remove_blob - Remove a named configuration blob
3554  * @config: Configuration data from wpa_config_read()
3555  * @name: Name of the blob to remove
3556  * Returns: 0 if blob was removed or -1 if blob was not found
3557  */
3558 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3559 {
3560         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3561
3562         while (pos) {
3563                 if (os_strcmp(pos->name, name) == 0) {
3564                         if (prev)
3565                                 prev->next = pos->next;
3566                         else
3567                                 config->blobs = pos->next;
3568                         wpa_config_free_blob(pos);
3569                         return 0;
3570                 }
3571                 prev = pos;
3572                 pos = pos->next;
3573         }
3574
3575         return -1;
3576 }
3577 #endif /* CONFIG_NO_CONFIG_BLOBS */
3578
3579
3580 /**
3581  * wpa_config_alloc_empty - Allocate an empty configuration
3582  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3583  * socket
3584  * @driver_param: Driver parameters
3585  * Returns: Pointer to allocated configuration data or %NULL on failure
3586  */
3587 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3588                                            const char *driver_param)
3589 {
3590         struct wpa_config *config;
3591         const int aCWmin = 4, aCWmax = 10;
3592         const struct hostapd_wmm_ac_params ac_bk =
3593                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3594         const struct hostapd_wmm_ac_params ac_be =
3595                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3596         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3597                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3598         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3599                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3600
3601         config = os_zalloc(sizeof(*config));
3602         if (config == NULL)
3603                 return NULL;
3604         config->eapol_version = DEFAULT_EAPOL_VERSION;
3605         config->ap_scan = DEFAULT_AP_SCAN;
3606         config->user_mpm = DEFAULT_USER_MPM;
3607         config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
3608         config->mesh_max_inactivity = DEFAULT_MESH_MAX_INACTIVITY;
3609         config->dot11RSNASAERetransPeriod =
3610                 DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD;
3611         config->fast_reauth = DEFAULT_FAST_REAUTH;
3612         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3613         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3614         config->p2p_go_freq_change_policy = DEFAULT_P2P_GO_FREQ_MOVE;
3615         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3616         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3617         config->p2p_go_ctwindow = DEFAULT_P2P_GO_CTWINDOW;
3618         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3619         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3620         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3621         config->max_num_sta = DEFAULT_MAX_NUM_STA;
3622         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3623         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3624         config->wmm_ac_params[0] = ac_be;
3625         config->wmm_ac_params[1] = ac_bk;
3626         config->wmm_ac_params[2] = ac_vi;
3627         config->wmm_ac_params[3] = ac_vo;
3628         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3629         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3630         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3631         config->cert_in_cb = DEFAULT_CERT_IN_CB;
3632         config->wpa_rsc_relaxation = DEFAULT_WPA_RSC_RELAXATION;
3633
3634 #ifdef CONFIG_MBO
3635         config->mbo_cell_capa = DEFAULT_MBO_CELL_CAPA;
3636 #endif /* CONFIG_MBO */
3637
3638         if (ctrl_interface)
3639                 config->ctrl_interface = os_strdup(ctrl_interface);
3640         if (driver_param)
3641                 config->driver_param = os_strdup(driver_param);
3642
3643         return config;
3644 }
3645
3646
3647 #ifndef CONFIG_NO_STDOUT_DEBUG
3648 /**
3649  * wpa_config_debug_dump_networks - Debug dump of configured networks
3650  * @config: Configuration data from wpa_config_read()
3651  */
3652 void wpa_config_debug_dump_networks(struct wpa_config *config)
3653 {
3654         int prio;
3655         struct wpa_ssid *ssid;
3656
3657         for (prio = 0; prio < config->num_prio; prio++) {
3658                 ssid = config->pssid[prio];
3659                 wpa_printf(MSG_DEBUG, "Priority group %d",
3660                            ssid->priority);
3661                 while (ssid) {
3662                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3663                                    ssid->id,
3664                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3665                         ssid = ssid->pnext;
3666                 }
3667         }
3668 }
3669 #endif /* CONFIG_NO_STDOUT_DEBUG */
3670
3671
3672 struct global_parse_data {
3673         char *name;
3674         int (*parser)(const struct global_parse_data *data,
3675                       struct wpa_config *config, int line, const char *value);
3676         int (*get)(const char *name, struct wpa_config *config, long offset,
3677                    char *buf, size_t buflen, int pretty_print);
3678         void *param1, *param2, *param3;
3679         unsigned int changed_flag;
3680 };
3681
3682
3683 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3684                                        struct wpa_config *config, int line,
3685                                        const char *pos)
3686 {
3687         int val, *dst;
3688         char *end;
3689
3690         dst = (int *) (((u8 *) config) + (long) data->param1);
3691         val = strtol(pos, &end, 0);
3692         if (*end) {
3693                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3694                            line, pos);
3695                 return -1;
3696         }
3697         *dst = val;
3698
3699         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3700
3701         if (data->param2 && *dst < (long) data->param2) {
3702                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3703                            "min_value=%ld)", line, data->name, *dst,
3704                            (long) data->param2);
3705                 *dst = (long) data->param2;
3706                 return -1;
3707         }
3708
3709         if (data->param3 && *dst > (long) data->param3) {
3710                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3711                            "max_value=%ld)", line, data->name, *dst,
3712                            (long) data->param3);
3713                 *dst = (long) data->param3;
3714                 return -1;
3715         }
3716
3717         return 0;
3718 }
3719
3720
3721 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3722                                        struct wpa_config *config, int line,
3723                                        const char *pos)
3724 {
3725         size_t len;
3726         char **dst, *tmp;
3727
3728         len = os_strlen(pos);
3729         if (data->param2 && len < (size_t) data->param2) {
3730                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3731                            "min_len=%ld)", line, data->name,
3732                            (unsigned long) len, (long) data->param2);
3733                 return -1;
3734         }
3735
3736         if (data->param3 && len > (size_t) data->param3) {
3737                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3738                            "max_len=%ld)", line, data->name,
3739                            (unsigned long) len, (long) data->param3);
3740                 return -1;
3741         }
3742
3743         tmp = os_strdup(pos);
3744         if (tmp == NULL)
3745                 return -1;
3746
3747         dst = (char **) (((u8 *) config) + (long) data->param1);
3748         os_free(*dst);
3749         *dst = tmp;
3750         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3751
3752         return 0;
3753 }
3754
3755
3756 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3757                                      struct wpa_config *config, int line,
3758                                      const char *pos)
3759 {
3760         size_t len;
3761         char *tmp;
3762         int res;
3763
3764         tmp = wpa_config_parse_string(pos, &len);
3765         if (tmp == NULL) {
3766                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3767                            line, data->name);
3768                 return -1;
3769         }
3770
3771         res = wpa_global_config_parse_str(data, config, line, tmp);
3772         os_free(tmp);
3773         return res;
3774 }
3775
3776
3777 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3778                                        struct wpa_config *config, int line,
3779                                        const char *pos)
3780 {
3781         size_t len;
3782         struct wpabuf **dst, *tmp;
3783
3784         len = os_strlen(pos);
3785         if (len & 0x01)
3786                 return -1;
3787
3788         tmp = wpabuf_alloc(len / 2);
3789         if (tmp == NULL)
3790                 return -1;
3791
3792         if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3793                 wpabuf_free(tmp);
3794                 return -1;
3795         }
3796
3797         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3798         wpabuf_free(*dst);
3799         *dst = tmp;
3800         wpa_printf(MSG_DEBUG, "%s", data->name);
3801
3802         return 0;
3803 }
3804
3805
3806 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3807                                         struct wpa_config *config, int line,
3808                                         const char *value)
3809 {
3810         int *freqs;
3811
3812         freqs = wpa_config_parse_int_array(value);
3813         if (freqs == NULL)
3814                 return -1;
3815         if (freqs[0] == 0) {
3816                 os_free(freqs);
3817                 freqs = NULL;
3818         }
3819         os_free(config->freq_list);
3820         config->freq_list = freqs;
3821         return 0;
3822 }
3823
3824
3825 #ifdef CONFIG_P2P
3826 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3827                                         struct wpa_config *config, int line,
3828                                         const char *pos)
3829 {
3830         u32 *dst;
3831         struct hostapd_ip_addr addr;
3832
3833         if (hostapd_parse_ip_addr(pos, &addr) < 0)
3834                 return -1;
3835         if (addr.af != AF_INET)
3836                 return -1;
3837
3838         dst = (u32 *) (((u8 *) config) + (long) data->param1);
3839         os_memcpy(dst, &addr.u.v4.s_addr, 4);
3840         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3841                    WPA_GET_BE32((u8 *) dst));
3842
3843         return 0;
3844 }
3845 #endif /* CONFIG_P2P */
3846
3847
3848 static int wpa_config_process_country(const struct global_parse_data *data,
3849                                       struct wpa_config *config, int line,
3850                                       const char *pos)
3851 {
3852         if (!pos[0] || !pos[1]) {
3853                 wpa_printf(MSG_DEBUG, "Invalid country set");
3854                 return -1;
3855         }
3856         config->country[0] = pos[0];
3857         config->country[1] = pos[1];
3858         wpa_printf(MSG_DEBUG, "country='%c%c'",
3859                    config->country[0], config->country[1]);
3860         return 0;
3861 }
3862
3863
3864 static int wpa_config_process_load_dynamic_eap(
3865         const struct global_parse_data *data, struct wpa_config *config,
3866         int line, const char *so)
3867 {
3868         int ret;
3869         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3870         ret = eap_peer_method_load(so);
3871         if (ret == -2) {
3872                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3873                            "reloading.");
3874         } else if (ret) {
3875                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3876                            "method '%s'.", line, so);
3877                 return -1;
3878         }
3879
3880         return 0;
3881 }
3882
3883
3884 #ifdef CONFIG_WPS
3885
3886 static int wpa_config_process_uuid(const struct global_parse_data *data,
3887                                    struct wpa_config *config, int line,
3888                                    const char *pos)
3889 {
3890         char buf[40];
3891         if (uuid_str2bin(pos, config->uuid)) {
3892                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3893                 return -1;
3894         }
3895         uuid_bin2str(config->uuid, buf, sizeof(buf));
3896         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3897         return 0;
3898 }
3899
3900
3901 static int wpa_config_process_device_type(
3902         const struct global_parse_data *data,
3903         struct wpa_config *config, int line, const char *pos)
3904 {
3905         return wps_dev_type_str2bin(pos, config->device_type);
3906 }
3907
3908
3909 static int wpa_config_process_os_version(const struct global_parse_data *data,
3910                                          struct wpa_config *config, int line,
3911                                          const char *pos)
3912 {
3913         if (hexstr2bin(pos, config->os_version, 4)) {
3914                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3915                 return -1;
3916         }
3917         wpa_printf(MSG_DEBUG, "os_version=%08x",
3918                    WPA_GET_BE32(config->os_version));
3919         return 0;
3920 }
3921
3922
3923 static int wpa_config_process_wps_vendor_ext_m1(
3924         const struct global_parse_data *data,
3925         struct wpa_config *config, int line, const char *pos)
3926 {
3927         struct wpabuf *tmp;
3928         int len = os_strlen(pos) / 2;
3929         u8 *p;
3930
3931         if (!len) {
3932                 wpa_printf(MSG_ERROR, "Line %d: "
3933                            "invalid wps_vendor_ext_m1", line);
3934                 return -1;
3935         }
3936
3937         tmp = wpabuf_alloc(len);
3938         if (tmp) {
3939                 p = wpabuf_put(tmp, len);
3940
3941                 if (hexstr2bin(pos, p, len)) {
3942                         wpa_printf(MSG_ERROR, "Line %d: "
3943                                    "invalid wps_vendor_ext_m1", line);
3944                         wpabuf_free(tmp);
3945                         return -1;
3946                 }
3947
3948                 wpabuf_free(config->wps_vendor_ext_m1);
3949                 config->wps_vendor_ext_m1 = tmp;
3950         } else {
3951                 wpa_printf(MSG_ERROR, "Can not allocate "
3952                            "memory for wps_vendor_ext_m1");
3953                 return -1;
3954         }
3955
3956         return 0;
3957 }
3958
3959 #endif /* CONFIG_WPS */
3960
3961 #ifdef CONFIG_P2P
3962 static int wpa_config_process_sec_device_type(
3963         const struct global_parse_data *data,
3964         struct wpa_config *config, int line, const char *pos)
3965 {
3966         int idx;
3967
3968         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3969                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3970                            "items", line);
3971                 return -1;
3972         }
3973
3974         idx = config->num_sec_device_types;
3975
3976         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3977                 return -1;
3978
3979         config->num_sec_device_types++;
3980         return 0;
3981 }
3982
3983
3984 static int wpa_config_process_p2p_pref_chan(
3985         const struct global_parse_data *data,
3986         struct wpa_config *config, int line, const char *pos)
3987 {
3988         struct p2p_channel *pref = NULL, *n;
3989         unsigned int num = 0;
3990         const char *pos2;
3991         u8 op_class, chan;
3992
3993         /* format: class:chan,class:chan,... */
3994
3995         while (*pos) {
3996                 op_class = atoi(pos);
3997                 pos2 = os_strchr(pos, ':');
3998                 if (pos2 == NULL)
3999                         goto fail;
4000                 pos2++;
4001                 chan = atoi(pos2);
4002
4003                 n = os_realloc_array(pref, num + 1,
4004                                      sizeof(struct p2p_channel));
4005                 if (n == NULL)
4006                         goto fail;
4007                 pref = n;
4008                 pref[num].op_class = op_class;
4009                 pref[num].chan = chan;
4010                 num++;
4011
4012                 pos = os_strchr(pos2, ',');
4013                 if (pos == NULL)
4014                         break;
4015                 pos++;
4016         }
4017
4018         os_free(config->p2p_pref_chan);
4019         config->p2p_pref_chan = pref;
4020         config->num_p2p_pref_chan = num;
4021         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
4022                     (u8 *) config->p2p_pref_chan,
4023                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
4024
4025         return 0;
4026
4027 fail:
4028         os_free(pref);
4029         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
4030         return -1;
4031 }
4032
4033
4034 static int wpa_config_process_p2p_no_go_freq(
4035         const struct global_parse_data *data,
4036         struct wpa_config *config, int line, const char *pos)
4037 {
4038         int ret;
4039
4040         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
4041         if (ret < 0) {
4042                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
4043                 return -1;
4044         }
4045
4046         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
4047                    config->p2p_no_go_freq.num);
4048
4049         return 0;
4050 }
4051
4052 #endif /* CONFIG_P2P */
4053
4054
4055 static int wpa_config_process_hessid(
4056         const struct global_parse_data *data,
4057         struct wpa_config *config, int line, const char *pos)
4058 {
4059         if (hwaddr_aton2(pos, config->hessid) < 0) {
4060                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
4061                            line, pos);
4062                 return -1;
4063         }
4064
4065         return 0;
4066 }
4067
4068
4069 static int wpa_config_process_sae_groups(
4070         const struct global_parse_data *data,
4071         struct wpa_config *config, int line, const char *pos)
4072 {
4073         int *groups = wpa_config_parse_int_array(pos);
4074         if (groups == NULL) {
4075                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
4076                            line, pos);
4077                 return -1;
4078         }
4079
4080         os_free(config->sae_groups);
4081         config->sae_groups = groups;
4082
4083         return 0;
4084 }
4085
4086
4087 static int wpa_config_process_ap_vendor_elements(
4088         const struct global_parse_data *data,
4089         struct wpa_config *config, int line, const char *pos)
4090 {
4091         struct wpabuf *tmp;
4092         int len = os_strlen(pos) / 2;
4093         u8 *p;
4094
4095         if (!len) {
4096                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
4097                            line);
4098                 return -1;
4099         }
4100
4101         tmp = wpabuf_alloc(len);
4102         if (tmp) {
4103                 p = wpabuf_put(tmp, len);
4104
4105                 if (hexstr2bin(pos, p, len)) {
4106                         wpa_printf(MSG_ERROR, "Line %d: invalid "
4107                                    "ap_vendor_elements", line);
4108                         wpabuf_free(tmp);
4109                         return -1;
4110                 }
4111
4112                 wpabuf_free(config->ap_vendor_elements);
4113                 config->ap_vendor_elements = tmp;
4114         } else {
4115                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
4116                            "ap_vendor_elements");
4117                 return -1;
4118         }
4119
4120         return 0;
4121 }
4122
4123
4124 #ifdef CONFIG_CTRL_IFACE
4125 static int wpa_config_process_no_ctrl_interface(
4126         const struct global_parse_data *data,
4127         struct wpa_config *config, int line, const char *pos)
4128 {
4129         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
4130         os_free(config->ctrl_interface);
4131         config->ctrl_interface = NULL;
4132         return 0;
4133 }
4134 #endif /* CONFIG_CTRL_IFACE */
4135
4136
4137 static int wpa_config_get_int(const char *name, struct wpa_config *config,
4138                               long offset, char *buf, size_t buflen,
4139                               int pretty_print)
4140 {
4141         int *val = (int *) (((u8 *) config) + (long) offset);
4142
4143         if (pretty_print)
4144                 return os_snprintf(buf, buflen, "%s=%d\n", name, *val);
4145         return os_snprintf(buf, buflen, "%d", *val);
4146 }
4147
4148
4149 static int wpa_config_get_str(const char *name, struct wpa_config *config,
4150                               long offset, char *buf, size_t buflen,
4151                               int pretty_print)
4152 {
4153         char **val = (char **) (((u8 *) config) + (long) offset);
4154         int res;
4155
4156         if (pretty_print)
4157                 res = os_snprintf(buf, buflen, "%s=%s\n", name,
4158                                   *val ? *val : "null");
4159         else if (!*val)
4160                 return -1;
4161         else
4162                 res = os_snprintf(buf, buflen, "%s", *val);
4163         if (os_snprintf_error(buflen, res))
4164                 res = -1;
4165
4166         return res;
4167 }
4168
4169
4170 #ifdef CONFIG_P2P
4171 static int wpa_config_get_ipv4(const char *name, struct wpa_config *config,
4172                                long offset, char *buf, size_t buflen,
4173                                int pretty_print)
4174 {
4175         void *val = ((u8 *) config) + (long) offset;
4176         int res;
4177         char addr[INET_ADDRSTRLEN];
4178
4179         if (!val || !inet_ntop(AF_INET, val, addr, sizeof(addr)))
4180                 return -1;
4181
4182         if (pretty_print)
4183                 res = os_snprintf(buf, buflen, "%s=%s\n", name, addr);
4184         else
4185                 res = os_snprintf(buf, buflen, "%s", addr);
4186
4187         if (os_snprintf_error(buflen, res))
4188                 res = -1;
4189
4190         return res;
4191 }
4192 #endif /* CONFIG_P2P */
4193
4194
4195 #ifdef OFFSET
4196 #undef OFFSET
4197 #endif /* OFFSET */
4198 /* OFFSET: Get offset of a variable within the wpa_config structure */
4199 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
4200
4201 #define FUNC(f) #f, wpa_config_process_ ## f, NULL, OFFSET(f), NULL, NULL
4202 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL, NULL
4203 #define _INT(f) #f, wpa_global_config_parse_int, wpa_config_get_int, OFFSET(f)
4204 #define INT(f) _INT(f), NULL, NULL
4205 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
4206 #define _STR(f) #f, wpa_global_config_parse_str, wpa_config_get_str, OFFSET(f)
4207 #define STR(f) _STR(f), NULL, NULL
4208 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
4209 #define BIN(f) #f, wpa_global_config_parse_bin, NULL, OFFSET(f), NULL, NULL
4210 #define IPV4(f) #f, wpa_global_config_parse_ipv4, wpa_config_get_ipv4,  \
4211         OFFSET(f), NULL, NULL
4212
4213 static const struct global_parse_data global_fields[] = {
4214 #ifdef CONFIG_CTRL_IFACE
4215         { STR(ctrl_interface), 0 },
4216         { FUNC_NO_VAR(no_ctrl_interface), 0 },
4217         { STR(ctrl_interface_group), 0 } /* deprecated */,
4218 #endif /* CONFIG_CTRL_IFACE */
4219 #ifdef CONFIG_MACSEC
4220         { INT_RANGE(eapol_version, 1, 3), 0 },
4221 #else /* CONFIG_MACSEC */
4222         { INT_RANGE(eapol_version, 1, 2), 0 },
4223 #endif /* CONFIG_MACSEC */
4224         { INT(ap_scan), 0 },
4225         { FUNC(bgscan), 0 },
4226 #ifdef CONFIG_MESH
4227         { INT(user_mpm), 0 },
4228         { INT_RANGE(max_peer_links, 0, 255), 0 },
4229         { INT(mesh_max_inactivity), 0 },
4230         { INT(dot11RSNASAERetransPeriod), 0 },
4231 #endif /* CONFIG_MESH */
4232         { INT(disable_scan_offload), 0 },
4233         { INT(fast_reauth), 0 },
4234         { STR(opensc_engine_path), 0 },
4235         { STR(pkcs11_engine_path), 0 },
4236         { STR(pkcs11_module_path), 0 },
4237         { STR(openssl_ciphers), 0 },
4238         { STR(pcsc_reader), 0 },
4239         { STR(pcsc_pin), 0 },
4240         { INT(external_sim), 0 },
4241         { STR(driver_param), 0 },
4242         { INT(dot11RSNAConfigPMKLifetime), 0 },
4243         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4244         { INT(dot11RSNAConfigSATimeout), 0 },
4245 #ifndef CONFIG_NO_CONFIG_WRITE
4246         { INT(update_config), 0 },
4247 #endif /* CONFIG_NO_CONFIG_WRITE */
4248         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4249 #ifdef CONFIG_WPS
4250         { FUNC(uuid), CFG_CHANGED_UUID },
4251         { STR_RANGE(device_name, 0, WPS_DEV_NAME_MAX_LEN),
4252           CFG_CHANGED_DEVICE_NAME },
4253         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4254         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4255         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4256         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4257         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4258         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4259         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4260         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4261         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4262 #endif /* CONFIG_WPS */
4263 #ifdef CONFIG_P2P
4264         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4265         { INT(p2p_listen_reg_class), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4266         { INT(p2p_listen_channel), CFG_CHANGED_P2P_LISTEN_CHANNEL },
4267         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4268         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4269         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4270         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4271         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4272         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4273         { INT(p2p_group_idle), 0 },
4274         { INT_RANGE(p2p_go_freq_change_policy, 0, P2P_GO_FREQ_MOVE_MAX), 0 },
4275         { INT_RANGE(p2p_passphrase_len, 8, 63),
4276           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4277         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4278         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4279         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4280         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4281         { INT(p2p_go_ht40), 0 },
4282         { INT(p2p_go_vht), 0 },
4283         { INT(p2p_disabled), 0 },
4284         { INT_RANGE(p2p_go_ctwindow, 0, 127), 0 },
4285         { INT(p2p_no_group_iface), 0 },
4286         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4287         { IPV4(ip_addr_go), 0 },
4288         { IPV4(ip_addr_mask), 0 },
4289         { IPV4(ip_addr_start), 0 },
4290         { IPV4(ip_addr_end), 0 },
4291         { INT_RANGE(p2p_cli_probe, 0, 1), 0 },
4292 #endif /* CONFIG_P2P */
4293         { FUNC(country), CFG_CHANGED_COUNTRY },
4294         { INT(bss_max_count), 0 },
4295         { INT(bss_expiration_age), 0 },
4296         { INT(bss_expiration_scan_count), 0 },
4297         { INT_RANGE(filter_ssids, 0, 1), 0 },
4298         { INT_RANGE(filter_rssi, -100, 0), 0 },
4299         { INT(max_num_sta), 0 },
4300         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4301 #ifdef CONFIG_HS20
4302         { INT_RANGE(hs20, 0, 1), 0 },
4303 #endif /* CONFIG_HS20 */
4304         { INT_RANGE(interworking, 0, 1), 0 },
4305         { FUNC(hessid), 0 },
4306         { INT_RANGE(access_network_type, 0, 15), 0 },
4307         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4308         { STR(autoscan), 0 },
4309         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4310           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4311         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4312         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4313         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4314         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4315         { INT(p2p_go_max_inactivity), 0 },
4316         { INT_RANGE(auto_interworking, 0, 1), 0 },
4317         { INT(okc), 0 },
4318         { INT(pmf), 0 },
4319         { FUNC(sae_groups), 0 },
4320         { INT(dtim_period), 0 },
4321         { INT(beacon_int), 0 },
4322         { FUNC(ap_vendor_elements), 0 },
4323         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4324         { FUNC(freq_list), 0 },
4325         { INT(scan_cur_freq), 0 },
4326         { INT(sched_scan_interval), 0 },
4327         { INT(tdls_external_control), 0},
4328         { STR(osu_dir), 0 },
4329         { STR(wowlan_triggers), 0 },
4330         { INT(p2p_search_delay), 0},
4331         { INT(mac_addr), 0 },
4332         { INT(rand_addr_lifetime), 0 },
4333         { INT(preassoc_mac_addr), 0 },
4334         { INT(key_mgmt_offload), 0},
4335         { INT(passive_scan), 0 },
4336         { INT(reassoc_same_bss_optim), 0 },
4337         { INT(wps_priority), 0},
4338 #ifdef CONFIG_FST
4339         { STR_RANGE(fst_group_id, 1, FST_MAX_GROUP_ID_LEN), 0 },
4340         { INT_RANGE(fst_priority, 1, FST_MAX_PRIO_VALUE), 0 },
4341         { INT_RANGE(fst_llt, 1, FST_MAX_LLT_MS), 0 },
4342 #endif /* CONFIG_FST */
4343         { INT_RANGE(wpa_rsc_relaxation, 0, 1), 0 },
4344         { STR(sched_scan_plans), CFG_CHANGED_SCHED_SCAN_PLANS },
4345 #ifdef CONFIG_MBO
4346         { STR(non_pref_chan), 0 },
4347         { INT_RANGE(mbo_cell_capa, MBO_CELL_CAPA_AVAILABLE,
4348                     MBO_CELL_CAPA_NOT_SUPPORTED), 0 },
4349 #endif /*CONFIG_MBO */
4350 };
4351
4352 #undef FUNC
4353 #undef _INT
4354 #undef INT
4355 #undef INT_RANGE
4356 #undef _STR
4357 #undef STR
4358 #undef STR_RANGE
4359 #undef BIN
4360 #undef IPV4
4361 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4362
4363
4364 int wpa_config_dump_values(struct wpa_config *config, char *buf, size_t buflen)
4365 {
4366         int result = 0;
4367         size_t i;
4368
4369         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4370                 const struct global_parse_data *field = &global_fields[i];
4371                 int tmp;
4372
4373                 if (!field->get)
4374                         continue;
4375
4376                 tmp = field->get(field->name, config, (long) field->param1,
4377                                  buf, buflen, 1);
4378                 if (tmp < 0)
4379                         return -1;
4380                 buf += tmp;
4381                 buflen -= tmp;
4382                 result += tmp;
4383         }
4384         return result;
4385 }
4386
4387
4388 int wpa_config_get_value(const char *name, struct wpa_config *config,
4389                          char *buf, size_t buflen)
4390 {
4391         size_t i;
4392
4393         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4394                 const struct global_parse_data *field = &global_fields[i];
4395
4396                 if (os_strcmp(name, field->name) != 0)
4397                         continue;
4398                 if (!field->get)
4399                         break;
4400                 return field->get(name, config, (long) field->param1,
4401                                   buf, buflen, 0);
4402         }
4403
4404         return -1;
4405 }
4406
4407
4408 int wpa_config_get_num_global_field_names(void)
4409 {
4410         return NUM_GLOBAL_FIELDS;
4411 }
4412
4413
4414 const char * wpa_config_get_global_field_name(unsigned int i, int *no_var)
4415 {
4416         if (i >= NUM_GLOBAL_FIELDS)
4417                 return NULL;
4418
4419         if (no_var)
4420                 *no_var = !global_fields[i].param1;
4421         return global_fields[i].name;
4422 }
4423
4424
4425 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4426 {
4427         size_t i;
4428         int ret = 0;
4429
4430         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4431                 const struct global_parse_data *field = &global_fields[i];
4432                 size_t flen = os_strlen(field->name);
4433                 if (os_strncmp(pos, field->name, flen) != 0 ||
4434                     pos[flen] != '=')
4435                         continue;
4436
4437                 if (field->parser(field, config, line, pos + flen + 1)) {
4438                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4439                                    "parse '%s'.", line, pos);
4440                         ret = -1;
4441                 }
4442                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4443                         config->wps_nfc_pw_from_config = 1;
4444                 config->changed_parameters |= field->changed_flag;
4445                 break;
4446         }
4447         if (i == NUM_GLOBAL_FIELDS) {
4448 #ifdef CONFIG_AP
4449                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4450                         char *tmp = os_strchr(pos, '=');
4451                         if (tmp == NULL) {
4452                                 if (line < 0)
4453                                         return -1;
4454                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4455                                            "'%s'", line, pos);
4456                                 return -1;
4457                         }
4458                         *tmp++ = '\0';
4459                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4460                                                   tmp)) {
4461                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4462                                            "AC item", line);
4463                                 return -1;
4464                         }
4465                 }
4466 #endif /* CONFIG_AP */
4467                 if (line < 0)
4468                         return -1;
4469                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4470                            line, pos);
4471                 ret = -1;
4472         }
4473
4474         return ret;
4475 }