wpa_supplicant/config.c

   1 /*
   2  * WPA Supplicant / Configuration parser and common functions
   3  * Copyright (c) 2003-2012, 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 "config.h"
  19
  20
  21 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
  22 #define NO_CONFIG_WRITE
  23 #endif
  24
  25 /*
  26  * Structure for network configuration parsing. This data is used to implement
  27  * a generic parser for each network block variable. The table of configuration
  28  * variables is defined below in this file (ssid_fields[]).
  29  */
  30 struct parse_data {
  31         /* Configuration variable name */
  32         char *name;
  33
  34         /* Parser function for this variable */
  35         int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
  36                       int line, const char *value);
  37
  38 #ifndef NO_CONFIG_WRITE
  39         /* Writer function (i.e., to get the variable in text format from
  40          * internal presentation). */
  41         char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
  42 #endif /* NO_CONFIG_WRITE */
  43
  44         /* Variable specific parameters for the parser. */
  45         void *param1, *param2, *param3, *param4;
  46
  47         /* 0 = this variable can be included in debug output and ctrl_iface
  48          * 1 = this variable contains key/private data and it must not be
  49          *     included in debug output unless explicitly requested. In
  50          *     addition, this variable will not be readable through the
  51          *     ctrl_iface.
  52          */
  53         int key_data;
  54 };
  55
  56
  57 static int wpa_config_parse_str(const struct parse_data *data,
  58                                 struct wpa_ssid *ssid,
  59                                 int line, const char *value)
  60 {
  61         size_t res_len, *dst_len;
  62         char **dst, *tmp;
  63
  64         if (os_strcmp(value, "NULL") == 0) {
  65                 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
  66                            data->name);
  67                 tmp = NULL;
  68                 res_len = 0;
  69                 goto set;
  70         }
  71
  72         tmp = wpa_config_parse_string(value, &res_len);
  73         if (tmp == NULL) {
  74                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
  75                            line, data->name,
  76                            data->key_data ? "[KEY DATA REMOVED]" : value);
  77                 return -1;
  78         }
  79
  80         if (data->key_data) {
  81                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
  82                                       (u8 *) tmp, res_len);
  83         } else {
  84                 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
  85                                   (u8 *) tmp, res_len);
  86         }
  87
  88         if (data->param3 && res_len < (size_t) data->param3) {
  89                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
  90                            "min_len=%ld)", line, data->name,
  91                            (unsigned long) res_len, (long) data->param3);
  92                 os_free(tmp);
  93                 return -1;
  94         }
  95
  96         if (data->param4 && res_len > (size_t) data->param4) {
  97                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
  98                            "max_len=%ld)", line, data->name,
  99                            (unsigned long) res_len, (long) data->param4);
 100                 os_free(tmp);
 101                 return -1;
 102         }
 103
 104 set:
 105         dst = (char **) (((u8 *) ssid) + (long) data->param1);
 106         dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
 107         os_free(*dst);
 108         *dst = tmp;
 109         if (data->param2)
 110                 *dst_len = res_len;
 111
 112         return 0;
 113 }
 114
 115
 116 #ifndef NO_CONFIG_WRITE
 117 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
 118 {
 119         char *buf;
 120
 121         buf = os_malloc(len + 3);
 122         if (buf == NULL)
 123                 return NULL;
 124         buf[0] = '"';
 125         os_memcpy(buf + 1, value, len);
 126         buf[len + 1] = '"';
 127         buf[len + 2] = '\0';
 128
 129         return buf;
 130 }
 131
 132
 133 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
 134 {
 135         char *buf;
 136
 137         buf = os_zalloc(2 * len + 1);
 138         if (buf == NULL)
 139                 return NULL;
 140         wpa_snprintf_hex(buf, 2 * len + 1, value, len);
 141
 142         return buf;
 143 }
 144
 145
 146 static char * wpa_config_write_string(const u8 *value, size_t len)
 147 {
 148         if (value == NULL)
 149                 return NULL;
 150
 151         if (is_hex(value, len))
 152                 return wpa_config_write_string_hex(value, len);
 153         else
 154                 return wpa_config_write_string_ascii(value, len);
 155 }
 156
 157
 158 static char * wpa_config_write_str(const struct parse_data *data,
 159                                    struct wpa_ssid *ssid)
 160 {
 161         size_t len;
 162         char **src;
 163
 164         src = (char **) (((u8 *) ssid) + (long) data->param1);
 165         if (*src == NULL)
 166                 return NULL;
 167
 168         if (data->param2)
 169                 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
 170         else
 171                 len = os_strlen(*src);
 172
 173         return wpa_config_write_string((const u8 *) *src, len);
 174 }
 175 #endif /* NO_CONFIG_WRITE */
 176
 177
 178 static int wpa_config_parse_int(const struct parse_data *data,
 179                                 struct wpa_ssid *ssid,
 180                                 int line, const char *value)
 181 {
 182         int val, *dst;
 183         char *end;
 184
 185         dst = (int *) (((u8 *) ssid) + (long) data->param1);
 186         val = strtol(value, &end, 0);
 187         if (*end) {
 188                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
 189                            line, value);
 190                 return -1;
 191         }
 192         *dst = val;
 193         wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
 194
 195         if (data->param3 && *dst < (long) data->param3) {
 196                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
 197                            "min_value=%ld)", line, data->name, *dst,
 198                            (long) data->param3);
 199                 *dst = (long) data->param3;
 200                 return -1;
 201         }
 202
 203         if (data->param4 && *dst > (long) data->param4) {
 204                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
 205                            "max_value=%ld)", line, data->name, *dst,
 206                            (long) data->param4);
 207                 *dst = (long) data->param4;
 208                 return -1;
 209         }
 210
 211         return 0;
 212 }
 213
 214
 215 #ifndef NO_CONFIG_WRITE
 216 static char * wpa_config_write_int(const struct parse_data *data,
 217                                    struct wpa_ssid *ssid)
 218 {
 219         int *src, res;
 220         char *value;
 221
 222         src = (int *) (((u8 *) ssid) + (long) data->param1);
 223
 224         value = os_malloc(20);
 225         if (value == NULL)
 226                 return NULL;
 227         res = os_snprintf(value, 20, "%d", *src);
 228         if (os_snprintf_error(20, res)) {
 229                 os_free(value);
 230                 return NULL;
 231         }
 232         value[20 - 1] = '\0';
 233         return value;
 234 }
 235 #endif /* NO_CONFIG_WRITE */
 236
 237
 238 static int wpa_config_parse_bssid(const struct parse_data *data,
 239                                   struct wpa_ssid *ssid, int line,
 240                                   const char *value)
 241 {
 242         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
 243             os_strcmp(value, "any") == 0) {
 244                 ssid->bssid_set = 0;
 245                 wpa_printf(MSG_MSGDUMP, "BSSID any");
 246                 return 0;
 247         }
 248         if (hwaddr_aton(value, ssid->bssid)) {
 249                 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
 250                            line, value);
 251                 return -1;
 252         }
 253         ssid->bssid_set = 1;
 254         wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
 255         return 0;
 256 }
 257
 258
 259 #ifndef NO_CONFIG_WRITE
 260 static char * wpa_config_write_bssid(const struct parse_data *data,
 261                                      struct wpa_ssid *ssid)
 262 {
 263         char *value;
 264         int res;
 265
 266         if (!ssid->bssid_set)
 267                 return NULL;
 268
 269         value = os_malloc(20);
 270         if (value == NULL)
 271                 return NULL;
 272         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
 273         if (os_snprintf_error(20, res)) {
 274                 os_free(value);
 275                 return NULL;
 276         }
 277         value[20 - 1] = '\0';
 278         return value;
 279 }
 280 #endif /* NO_CONFIG_WRITE */
 281
 282
 283 static int wpa_config_parse_psk(const struct parse_data *data,
 284                                 struct wpa_ssid *ssid, int line,
 285                                 const char *value)
 286 {
 287 #ifdef CONFIG_EXT_PASSWORD
 288         if (os_strncmp(value, "ext:", 4) == 0) {
 289                 str_clear_free(ssid->passphrase);
 290                 ssid->passphrase = NULL;
 291                 ssid->psk_set = 0;
 292                 os_free(ssid->ext_psk);
 293                 ssid->ext_psk = os_strdup(value + 4);
 294                 if (ssid->ext_psk == NULL)
 295                         return -1;
 296                 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
 297                            ssid->ext_psk);
 298                 return 0;
 299         }
 300 #endif /* CONFIG_EXT_PASSWORD */
 301
 302         if (*value == '"') {
 303 #ifndef CONFIG_NO_PBKDF2
 304                 const char *pos;
 305                 size_t len;
 306
 307                 value++;
 308                 pos = os_strrchr(value, '"');
 309                 if (pos)
 310                         len = pos - value;
 311                 else
 312                         len = os_strlen(value);
 313                 if (len < 8 || len > 63) {
 314                         wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
 315                                    "length %lu (expected: 8..63) '%s'.",
 316                                    line, (unsigned long) len, value);
 317                         return -1;
 318                 }
 319                 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
 320                                       (u8 *) value, len);
 321                 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
 322                     os_memcmp(ssid->passphrase, value, len) == 0)
 323                         return 0;
 324                 ssid->psk_set = 0;
 325                 str_clear_free(ssid->passphrase);
 326                 ssid->passphrase = dup_binstr(value, len);
 327                 if (ssid->passphrase == NULL)
 328                         return -1;
 329                 return 0;
 330 #else /* CONFIG_NO_PBKDF2 */
 331                 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
 332                            "supported.", line);
 333                 return -1;
 334 #endif /* CONFIG_NO_PBKDF2 */
 335         }
 336
 337         if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
 338             value[PMK_LEN * 2] != '\0') {
 339                 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
 340                            line, value);
 341                 return -1;
 342         }
 343
 344         str_clear_free(ssid->passphrase);
 345         ssid->passphrase = NULL;
 346
 347         ssid->psk_set = 1;
 348         wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
 349         return 0;
 350 }
 351
 352
 353 #ifndef NO_CONFIG_WRITE
 354 static char * wpa_config_write_psk(const struct parse_data *data,
 355                                    struct wpa_ssid *ssid)
 356 {
 357 #ifdef CONFIG_EXT_PASSWORD
 358         if (ssid->ext_psk) {
 359                 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
 360                 char *buf = os_malloc(len);
 361                 int res;
 362
 363                 if (buf == NULL)
 364                         return NULL;
 365                 res = os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
 366                 if (os_snprintf_error(len, res)) {
 367                         os_free(buf);
 368                         buf = NULL;
 369                 }
 370                 return buf;
 371         }
 372 #endif /* CONFIG_EXT_PASSWORD */
 373
 374         if (ssid->passphrase)
 375                 return wpa_config_write_string_ascii(
 376                         (const u8 *) ssid->passphrase,
 377                         os_strlen(ssid->passphrase));
 378
 379         if (ssid->psk_set)
 380                 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
 381
 382         return NULL;
 383 }
 384 #endif /* NO_CONFIG_WRITE */
 385
 386
 387 static int wpa_config_parse_proto(const struct parse_data *data,
 388                                   struct wpa_ssid *ssid, int line,
 389                                   const char *value)
 390 {
 391         int val = 0, last, errors = 0;
 392         char *start, *end, *buf;
 393
 394         buf = os_strdup(value);
 395         if (buf == NULL)
 396                 return -1;
 397         start = buf;
 398
 399         while (*start != '\0') {
 400                 while (*start == ' ' || *start == '\t')
 401                         start++;
 402                 if (*start == '\0')
 403                         break;
 404                 end = start;
 405                 while (*end != ' ' && *end != '\t' && *end != '\0')
 406                         end++;
 407                 last = *end == '\0';
 408                 *end = '\0';
 409                 if (os_strcmp(start, "WPA") == 0)
 410                         val |= WPA_PROTO_WPA;
 411                 else if (os_strcmp(start, "RSN") == 0 ||
 412                          os_strcmp(start, "WPA2") == 0)
 413                         val |= WPA_PROTO_RSN;
 414                 else if (os_strcmp(start, "OSEN") == 0)
 415                         val |= WPA_PROTO_OSEN;
 416                 else {
 417                         wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
 418                                    line, start);
 419                         errors++;
 420                 }
 421
 422                 if (last)
 423                         break;
 424                 start = end + 1;
 425         }
 426         os_free(buf);
 427
 428         if (val == 0) {
 429                 wpa_printf(MSG_ERROR,
 430                            "Line %d: no proto values configured.", line);
 431                 errors++;
 432         }
 433
 434         wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
 435         ssid->proto = val;
 436         return errors ? -1 : 0;
 437 }
 438
 439
 440 #ifndef NO_CONFIG_WRITE
 441 static char * wpa_config_write_proto(const struct parse_data *data,
 442                                      struct wpa_ssid *ssid)
 443 {
 444         int ret;
 445         char *buf, *pos, *end;
 446
 447         pos = buf = os_zalloc(20);
 448         if (buf == NULL)
 449                 return NULL;
 450         end = buf + 20;
 451
 452         if (ssid->proto & WPA_PROTO_WPA) {
 453                 ret = os_snprintf(pos, end - pos, "%sWPA",
 454                                   pos == buf ? "" : " ");
 455                 if (os_snprintf_error(end - pos, ret))
 456                         return buf;
 457                 pos += ret;
 458         }
 459
 460         if (ssid->proto & WPA_PROTO_RSN) {
 461                 ret = os_snprintf(pos, end - pos, "%sRSN",
 462                                   pos == buf ? "" : " ");
 463                 if (os_snprintf_error(end - pos, ret))
 464                         return buf;
 465                 pos += ret;
 466         }
 467
 468         if (ssid->proto & WPA_PROTO_OSEN) {
 469                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 470                                   pos == buf ? "" : " ");
 471                 if (os_snprintf_error(end - pos, ret))
 472                         return buf;
 473                 pos += ret;
 474         }
 475
 476         if (pos == buf) {
 477                 os_free(buf);
 478                 buf = NULL;
 479         }
 480
 481         return buf;
 482 }
 483 #endif /* NO_CONFIG_WRITE */
 484
 485
 486 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
 487                                      struct wpa_ssid *ssid, int line,
 488                                      const char *value)
 489 {
 490         int val = 0, last, errors = 0;
 491         char *start, *end, *buf;
 492
 493         buf = os_strdup(value);
 494         if (buf == NULL)
 495                 return -1;
 496         start = buf;
 497
 498         while (*start != '\0') {
 499                 while (*start == ' ' || *start == '\t')
 500                         start++;
 501                 if (*start == '\0')
 502                         break;
 503                 end = start;
 504                 while (*end != ' ' && *end != '\t' && *end != '\0')
 505                         end++;
 506                 last = *end == '\0';
 507                 *end = '\0';
 508                 if (os_strcmp(start, "WPA-PSK") == 0)
 509                         val |= WPA_KEY_MGMT_PSK;
 510                 else if (os_strcmp(start, "WPA-EAP") == 0)
 511                         val |= WPA_KEY_MGMT_IEEE8021X;
 512                 else if (os_strcmp(start, "IEEE8021X") == 0)
 513                         val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
 514                 else if (os_strcmp(start, "NONE") == 0)
 515                         val |= WPA_KEY_MGMT_NONE;
 516                 else if (os_strcmp(start, "WPA-NONE") == 0)
 517                         val |= WPA_KEY_MGMT_WPA_NONE;
 518 #ifdef CONFIG_IEEE80211R
 519                 else if (os_strcmp(start, "FT-PSK") == 0)
 520                         val |= WPA_KEY_MGMT_FT_PSK;
 521                 else if (os_strcmp(start, "FT-EAP") == 0)
 522                         val |= WPA_KEY_MGMT_FT_IEEE8021X;
 523 #endif /* CONFIG_IEEE80211R */
 524 #ifdef CONFIG_IEEE80211W
 525                 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
 526                         val |= WPA_KEY_MGMT_PSK_SHA256;
 527                 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
 528                         val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
 529 #endif /* CONFIG_IEEE80211W */
 530 #ifdef CONFIG_WPS
 531                 else if (os_strcmp(start, "WPS") == 0)
 532                         val |= WPA_KEY_MGMT_WPS;
 533 #endif /* CONFIG_WPS */
 534 #ifdef CONFIG_SAE
 535                 else if (os_strcmp(start, "SAE") == 0)
 536                         val |= WPA_KEY_MGMT_SAE;
 537                 else if (os_strcmp(start, "FT-SAE") == 0)
 538                         val |= WPA_KEY_MGMT_FT_SAE;
 539 #endif /* CONFIG_SAE */
 540 #ifdef CONFIG_HS20
 541                 else if (os_strcmp(start, "OSEN") == 0)
 542                         val |= WPA_KEY_MGMT_OSEN;
 543 #endif /* CONFIG_HS20 */
 544                 else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
 545                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
 546                 else {
 547                         wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
 548                                    line, start);
 549                         errors++;
 550                 }
 551
 552                 if (last)
 553                         break;
 554                 start = end + 1;
 555         }
 556         os_free(buf);
 557
 558         if (val == 0) {
 559                 wpa_printf(MSG_ERROR,
 560                            "Line %d: no key_mgmt values configured.", line);
 561                 errors++;
 562         }
 563
 564         wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
 565         ssid->key_mgmt = val;
 566         return errors ? -1 : 0;
 567 }
 568
 569
 570 #ifndef NO_CONFIG_WRITE
 571 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
 572                                         struct wpa_ssid *ssid)
 573 {
 574         char *buf, *pos, *end;
 575         int ret;
 576
 577         pos = buf = os_zalloc(100);
 578         if (buf == NULL)
 579                 return NULL;
 580         end = buf + 100;
 581
 582         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
 583                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
 584                                   pos == buf ? "" : " ");
 585                 if (os_snprintf_error(end - pos, ret)) {
 586                         end[-1] = '\0';
 587                         return buf;
 588                 }
 589                 pos += ret;
 590         }
 591
 592         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
 593                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
 594                                   pos == buf ? "" : " ");
 595                 if (os_snprintf_error(end - pos, ret)) {
 596                         end[-1] = '\0';
 597                         return buf;
 598                 }
 599                 pos += ret;
 600         }
 601
 602         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 603                 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
 604                                   pos == buf ? "" : " ");
 605                 if (os_snprintf_error(end - pos, ret)) {
 606                         end[-1] = '\0';
 607                         return buf;
 608                 }
 609                 pos += ret;
 610         }
 611
 612         if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
 613                 ret = os_snprintf(pos, end - pos, "%sNONE",
 614                                   pos == buf ? "" : " ");
 615                 if (os_snprintf_error(end - pos, ret)) {
 616                         end[-1] = '\0';
 617                         return buf;
 618                 }
 619                 pos += ret;
 620         }
 621
 622         if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
 623                 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
 624                                   pos == buf ? "" : " ");
 625                 if (os_snprintf_error(end - pos, ret)) {
 626                         end[-1] = '\0';
 627                         return buf;
 628                 }
 629                 pos += ret;
 630         }
 631
 632 #ifdef CONFIG_IEEE80211R
 633         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
 634                 ret = os_snprintf(pos, end - pos, "%sFT-PSK",
 635                                   pos == buf ? "" : " ");
 636                 if (os_snprintf_error(end - pos, ret)) {
 637                         end[-1] = '\0';
 638                         return buf;
 639                 }
 640                 pos += ret;
 641         }
 642
 643         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
 644                 ret = os_snprintf(pos, end - pos, "%sFT-EAP",
 645                                   pos == buf ? "" : " ");
 646                 if (os_snprintf_error(end - pos, ret)) {
 647                         end[-1] = '\0';
 648                         return buf;
 649                 }
 650                 pos += ret;
 651         }
 652 #endif /* CONFIG_IEEE80211R */
 653
 654 #ifdef CONFIG_IEEE80211W
 655         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
 656                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
 657                                   pos == buf ? "" : " ");
 658                 if (os_snprintf_error(end - pos, ret)) {
 659                         end[-1] = '\0';
 660                         return buf;
 661                 }
 662                 pos += ret;
 663         }
 664
 665         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
 666                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
 667                                   pos == buf ? "" : " ");
 668                 if (os_snprintf_error(end - pos, ret)) {
 669                         end[-1] = '\0';
 670                         return buf;
 671                 }
 672                 pos += ret;
 673         }
 674 #endif /* CONFIG_IEEE80211W */
 675
 676 #ifdef CONFIG_WPS
 677         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 678                 ret = os_snprintf(pos, end - pos, "%sWPS",
 679                                   pos == buf ? "" : " ");
 680                 if (os_snprintf_error(end - pos, ret)) {
 681                         end[-1] = '\0';
 682                         return buf;
 683                 }
 684                 pos += ret;
 685         }
 686 #endif /* CONFIG_WPS */
 687
 688 #ifdef CONFIG_SAE
 689         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 690                 ret = os_snprintf(pos, end - pos, "%sSAE",
 691                                   pos == buf ? "" : " ");
 692                 if (os_snprintf_error(end - pos, ret)) {
 693                         end[-1] = '\0';
 694                         return buf;
 695                 }
 696                 pos += ret;
 697         }
 698
 699         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
 700                 ret = os_snprintf(pos, end - pos, "%sFT-SAE",
 701                                   pos == buf ? "" : " ");
 702                 if (os_snprintf_error(end - pos, ret)) {
 703                         end[-1] = '\0';
 704                         return buf;
 705                 }
 706                 pos += ret;
 707         }
 708 #endif /* CONFIG_SAE */
 709
 710 #ifdef CONFIG_HS20
 711         if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
 712                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 713                                   pos == buf ? "" : " ");
 714                 if (os_snprintf_error(end - pos, ret)) {
 715                         end[-1] = '\0';
 716                         return buf;
 717                 }
 718                 pos += ret;
 719         }
 720 #endif /* CONFIG_HS20 */
 721
 722         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
 723                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
 724                                   pos == buf ? "" : " ");
 725                 if (os_snprintf_error(end - pos, ret)) {
 726                         end[-1] = '\0';
 727                         return buf;
 728                 }
 729                 pos += ret;
 730         }
 731
 732         if (pos == buf) {
 733                 os_free(buf);
 734                 buf = NULL;
 735         }
 736
 737         return buf;
 738 }
 739 #endif /* NO_CONFIG_WRITE */
 740
 741
 742 static int wpa_config_parse_cipher(int line, const char *value)
 743 {
 744         int val = wpa_parse_cipher(value);
 745         if (val < 0) {
 746                 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
 747                            line, value);
 748                 return -1;
 749         }
 750         if (val == 0) {
 751                 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
 752                            line);
 753                 return -1;
 754         }
 755         return val;
 756 }
 757
 758
 759 #ifndef NO_CONFIG_WRITE
 760 static char * wpa_config_write_cipher(int cipher)
 761 {
 762         char *buf = os_zalloc(50);
 763         if (buf == NULL)
 764                 return NULL;
 765
 766         if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
 767                 os_free(buf);
 768                 return NULL;
 769         }
 770
 771         return buf;
 772 }
 773 #endif /* NO_CONFIG_WRITE */
 774
 775
 776 static int wpa_config_parse_pairwise(const struct parse_data *data,
 777                                      struct wpa_ssid *ssid, int line,
 778                                      const char *value)
 779 {
 780         int val;
 781         val = wpa_config_parse_cipher(line, value);
 782         if (val == -1)
 783                 return -1;
 784         if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
 785                 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
 786                            "(0x%x).", line, val);
 787                 return -1;
 788         }
 789
 790         wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
 791         ssid->pairwise_cipher = val;
 792         return 0;
 793 }
 794
 795
 796 #ifndef NO_CONFIG_WRITE
 797 static char * wpa_config_write_pairwise(const struct parse_data *data,
 798                                         struct wpa_ssid *ssid)
 799 {
 800         return wpa_config_write_cipher(ssid->pairwise_cipher);
 801 }
 802 #endif /* NO_CONFIG_WRITE */
 803
 804
 805 static int wpa_config_parse_group(const struct parse_data *data,
 806                                   struct wpa_ssid *ssid, int line,
 807                                   const char *value)
 808 {
 809         int val;
 810         val = wpa_config_parse_cipher(line, value);
 811         if (val == -1)
 812                 return -1;
 813         if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
 814                 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
 815                            "(0x%x).", line, val);
 816                 return -1;
 817         }
 818
 819         wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
 820         ssid->group_cipher = val;
 821         return 0;
 822 }
 823
 824
 825 #ifndef NO_CONFIG_WRITE
 826 static char * wpa_config_write_group(const struct parse_data *data,
 827                                      struct wpa_ssid *ssid)
 828 {
 829         return wpa_config_write_cipher(ssid->group_cipher);
 830 }
 831 #endif /* NO_CONFIG_WRITE */
 832
 833
 834 static int wpa_config_parse_auth_alg(const struct parse_data *data,
 835                                      struct wpa_ssid *ssid, int line,
 836                                      const char *value)
 837 {
 838         int val = 0, last, errors = 0;
 839         char *start, *end, *buf;
 840
 841         buf = os_strdup(value);
 842         if (buf == NULL)
 843                 return -1;
 844         start = buf;
 845
 846         while (*start != '\0') {
 847                 while (*start == ' ' || *start == '\t')
 848                         start++;
 849                 if (*start == '\0')
 850                         break;
 851                 end = start;
 852                 while (*end != ' ' && *end != '\t' && *end != '\0')
 853                         end++;
 854                 last = *end == '\0';
 855                 *end = '\0';
 856                 if (os_strcmp(start, "OPEN") == 0)
 857                         val |= WPA_AUTH_ALG_OPEN;
 858                 else if (os_strcmp(start, "SHARED") == 0)
 859                         val |= WPA_AUTH_ALG_SHARED;
 860                 else if (os_strcmp(start, "LEAP") == 0)
 861                         val |= WPA_AUTH_ALG_LEAP;
 862                 else {
 863                         wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
 864                                    line, start);
 865                         errors++;
 866                 }
 867
 868                 if (last)
 869                         break;
 870                 start = end + 1;
 871         }
 872         os_free(buf);
 873
 874         if (val == 0) {
 875                 wpa_printf(MSG_ERROR,
 876                            "Line %d: no auth_alg values configured.", line);
 877                 errors++;
 878         }
 879
 880         wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
 881         ssid->auth_alg = val;
 882         return errors ? -1 : 0;
 883 }
 884
 885
 886 #ifndef NO_CONFIG_WRITE
 887 static char * wpa_config_write_auth_alg(const struct parse_data *data,
 888                                         struct wpa_ssid *ssid)
 889 {
 890         char *buf, *pos, *end;
 891         int ret;
 892
 893         pos = buf = os_zalloc(30);
 894         if (buf == NULL)
 895                 return NULL;
 896         end = buf + 30;
 897
 898         if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
 899                 ret = os_snprintf(pos, end - pos, "%sOPEN",
 900                                   pos == buf ? "" : " ");
 901                 if (os_snprintf_error(end - pos, ret)) {
 902                         end[-1] = '\0';
 903                         return buf;
 904                 }
 905                 pos += ret;
 906         }
 907
 908         if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
 909                 ret = os_snprintf(pos, end - pos, "%sSHARED",
 910                                   pos == buf ? "" : " ");
 911                 if (os_snprintf_error(end - pos, ret)) {
 912                         end[-1] = '\0';
 913                         return buf;
 914                 }
 915                 pos += ret;
 916         }
 917
 918         if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
 919                 ret = os_snprintf(pos, end - pos, "%sLEAP",
 920                                   pos == buf ? "" : " ");
 921                 if (os_snprintf_error(end - pos, ret)) {
 922                         end[-1] = '\0';
 923                         return buf;
 924                 }
 925                 pos += ret;
 926         }
 927
 928         if (pos == buf) {
 929                 os_free(buf);
 930                 buf = NULL;
 931         }
 932
 933         return buf;
 934 }
 935 #endif /* NO_CONFIG_WRITE */
 936
 937
 938 static int * wpa_config_parse_int_array(const char *value)
 939 {
 940         int *freqs;
 941         size_t used, len;
 942         const char *pos;
 943
 944         used = 0;
 945         len = 10;
 946         freqs = os_calloc(len + 1, sizeof(int));
 947         if (freqs == NULL)
 948                 return NULL;
 949
 950         pos = value;
 951         while (pos) {
 952                 while (*pos == ' ')
 953                         pos++;
 954                 if (used == len) {
 955                         int *n;
 956                         size_t i;
 957                         n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
 958                         if (n == NULL) {
 959                                 os_free(freqs);
 960                                 return NULL;
 961                         }
 962                         for (i = len; i <= len * 2; i++)
 963                                 n[i] = 0;
 964                         freqs = n;
 965                         len *= 2;
 966                 }
 967
 968                 freqs[used] = atoi(pos);
 969                 if (freqs[used] == 0)
 970                         break;
 971                 used++;
 972                 pos = os_strchr(pos + 1, ' ');
 973         }
 974
 975         return freqs;
 976 }
 977
 978
 979 static int wpa_config_parse_scan_freq(const struct parse_data *data,
 980                                       struct wpa_ssid *ssid, int line,
 981                                       const char *value)
 982 {
 983         int *freqs;
 984
 985         freqs = wpa_config_parse_int_array(value);
 986         if (freqs == NULL)
 987                 return -1;
 988         if (freqs[0] == 0) {
 989                 os_free(freqs);
 990                 freqs = NULL;
 991         }
 992         os_free(ssid->scan_freq);
 993         ssid->scan_freq = freqs;
 994
 995         return 0;
 996 }
 997
 998
 999 static int wpa_config_parse_freq_list(const struct parse_data *data,
1000                                       struct wpa_ssid *ssid, int line,
1001                                       const char *value)
1002 {
1003         int *freqs;
1004
1005         freqs = wpa_config_parse_int_array(value);
1006         if (freqs == NULL)
1007                 return -1;
1008         if (freqs[0] == 0) {
1009                 os_free(freqs);
1010                 freqs = NULL;
1011         }
1012         os_free(ssid->freq_list);
1013         ssid->freq_list = freqs;
1014
1015         return 0;
1016 }
1017
1018
1019 #ifndef NO_CONFIG_WRITE
1020 static char * wpa_config_write_freqs(const struct parse_data *data,
1021                                      const int *freqs)
1022 {
1023         char *buf, *pos, *end;
1024         int i, ret;
1025         size_t count;
1026
1027         if (freqs == NULL)
1028                 return NULL;
1029
1030         count = 0;
1031         for (i = 0; freqs[i]; i++)
1032                 count++;
1033
1034         pos = buf = os_zalloc(10 * count + 1);
1035         if (buf == NULL)
1036                 return NULL;
1037         end = buf + 10 * count + 1;
1038
1039         for (i = 0; freqs[i]; i++) {
1040                 ret = os_snprintf(pos, end - pos, "%s%u",
1041                                   i == 0 ? "" : " ", freqs[i]);
1042                 if (os_snprintf_error(end - pos, ret)) {
1043                         end[-1] = '\0';
1044                         return buf;
1045                 }
1046                 pos += ret;
1047         }
1048
1049         return buf;
1050 }
1051
1052
1053 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1054                                          struct wpa_ssid *ssid)
1055 {
1056         return wpa_config_write_freqs(data, ssid->scan_freq);
1057 }
1058
1059
1060 static char * wpa_config_write_freq_list(const struct parse_data *data,
1061                                          struct wpa_ssid *ssid)
1062 {
1063         return wpa_config_write_freqs(data, ssid->freq_list);
1064 }
1065 #endif /* NO_CONFIG_WRITE */
1066
1067
1068 #ifdef IEEE8021X_EAPOL
1069 static int wpa_config_parse_eap(const struct parse_data *data,
1070                                 struct wpa_ssid *ssid, int line,
1071                                 const char *value)
1072 {
1073         int last, errors = 0;
1074         char *start, *end, *buf;
1075         struct eap_method_type *methods = NULL, *tmp;
1076         size_t num_methods = 0;
1077
1078         buf = os_strdup(value);
1079         if (buf == NULL)
1080                 return -1;
1081         start = buf;
1082
1083         while (*start != '\0') {
1084                 while (*start == ' ' || *start == '\t')
1085                         start++;
1086                 if (*start == '\0')
1087                         break;
1088                 end = start;
1089                 while (*end != ' ' && *end != '\t' && *end != '\0')
1090                         end++;
1091                 last = *end == '\0';
1092                 *end = '\0';
1093                 tmp = methods;
1094                 methods = os_realloc_array(methods, num_methods + 1,
1095                                            sizeof(*methods));
1096                 if (methods == NULL) {
1097                         os_free(tmp);
1098                         os_free(buf);
1099                         return -1;
1100                 }
1101                 methods[num_methods].method = eap_peer_get_type(
1102                         start, &methods[num_methods].vendor);
1103                 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1104                     methods[num_methods].method == EAP_TYPE_NONE) {
1105                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1106                                    "'%s'", line, start);
1107                         wpa_printf(MSG_ERROR, "You may need to add support for"
1108                                    " this EAP method during wpa_supplicant\n"
1109                                    "build time configuration.\n"
1110                                    "See README for more information.");
1111                         errors++;
1112                 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1113                            methods[num_methods].method == EAP_TYPE_LEAP)
1114                         ssid->leap++;
1115                 else
1116                         ssid->non_leap++;
1117                 num_methods++;
1118                 if (last)
1119                         break;
1120                 start = end + 1;
1121         }
1122         os_free(buf);
1123
1124         tmp = methods;
1125         methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1126         if (methods == NULL) {
1127                 os_free(tmp);
1128                 return -1;
1129         }
1130         methods[num_methods].vendor = EAP_VENDOR_IETF;
1131         methods[num_methods].method = EAP_TYPE_NONE;
1132         num_methods++;
1133
1134         wpa_hexdump(MSG_MSGDUMP, "eap methods",
1135                     (u8 *) methods, num_methods * sizeof(*methods));
1136         os_free(ssid->eap.eap_methods);
1137         ssid->eap.eap_methods = methods;
1138         return errors ? -1 : 0;
1139 }
1140
1141
1142 static char * wpa_config_write_eap(const struct parse_data *data,
1143                                    struct wpa_ssid *ssid)
1144 {
1145         int i, ret;
1146         char *buf, *pos, *end;
1147         const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1148         const char *name;
1149
1150         if (eap_methods == NULL)
1151                 return NULL;
1152
1153         pos = buf = os_zalloc(100);
1154         if (buf == NULL)
1155                 return NULL;
1156         end = buf + 100;
1157
1158         for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1159                      eap_methods[i].method != EAP_TYPE_NONE; i++) {
1160                 name = eap_get_name(eap_methods[i].vendor,
1161                                     eap_methods[i].method);
1162                 if (name) {
1163                         ret = os_snprintf(pos, end - pos, "%s%s",
1164                                           pos == buf ? "" : " ", name);
1165                         if (os_snprintf_error(end - pos, ret))
1166                                 break;
1167                         pos += ret;
1168                 }
1169         }
1170
1171         end[-1] = '\0';
1172
1173         return buf;
1174 }
1175
1176
1177 static int wpa_config_parse_password(const struct parse_data *data,
1178                                      struct wpa_ssid *ssid, int line,
1179                                      const char *value)
1180 {
1181         u8 *hash;
1182
1183         if (os_strcmp(value, "NULL") == 0) {
1184                 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1185                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1186                 ssid->eap.password = NULL;
1187                 ssid->eap.password_len = 0;
1188                 return 0;
1189         }
1190
1191 #ifdef CONFIG_EXT_PASSWORD
1192         if (os_strncmp(value, "ext:", 4) == 0) {
1193                 char *name = os_strdup(value + 4);
1194                 if (name == NULL)
1195                         return -1;
1196                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1197                 ssid->eap.password = (u8 *) name;
1198                 ssid->eap.password_len = os_strlen(name);
1199                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1200                 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1201                 return 0;
1202         }
1203 #endif /* CONFIG_EXT_PASSWORD */
1204
1205         if (os_strncmp(value, "hash:", 5) != 0) {
1206                 char *tmp;
1207                 size_t res_len;
1208
1209                 tmp = wpa_config_parse_string(value, &res_len);
1210                 if (tmp == NULL) {
1211                         wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1212                                    "password.", line);
1213                         return -1;
1214                 }
1215                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1216                                       (u8 *) tmp, res_len);
1217
1218                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1219                 ssid->eap.password = (u8 *) tmp;
1220                 ssid->eap.password_len = res_len;
1221                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1222                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1223
1224                 return 0;
1225         }
1226
1227
1228         /* NtPasswordHash: hash:<32 hex digits> */
1229         if (os_strlen(value + 5) != 2 * 16) {
1230                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1231                            "(expected 32 hex digits)", line);
1232                 return -1;
1233         }
1234
1235         hash = os_malloc(16);
1236         if (hash == NULL)
1237                 return -1;
1238
1239         if (hexstr2bin(value + 5, hash, 16)) {
1240                 os_free(hash);
1241                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1242                 return -1;
1243         }
1244
1245         wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1246
1247         bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1248         ssid->eap.password = hash;
1249         ssid->eap.password_len = 16;
1250         ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1251         ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1252
1253         return 0;
1254 }
1255
1256
1257 static char * wpa_config_write_password(const struct parse_data *data,
1258                                         struct wpa_ssid *ssid)
1259 {
1260         char *buf;
1261
1262         if (ssid->eap.password == NULL)
1263                 return NULL;
1264
1265 #ifdef CONFIG_EXT_PASSWORD
1266         if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1267                 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1268                 if (buf == NULL)
1269                         return NULL;
1270                 os_memcpy(buf, "ext:", 4);
1271                 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1272                 return buf;
1273         }
1274 #endif /* CONFIG_EXT_PASSWORD */
1275
1276         if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1277                 return wpa_config_write_string(
1278                         ssid->eap.password, ssid->eap.password_len);
1279         }
1280
1281         buf = os_malloc(5 + 32 + 1);
1282         if (buf == NULL)
1283                 return NULL;
1284
1285         os_memcpy(buf, "hash:", 5);
1286         wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1287
1288         return buf;
1289 }
1290 #endif /* IEEE8021X_EAPOL */
1291
1292
1293 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1294                                     const char *value, int idx)
1295 {
1296         char *buf, title[20];
1297         int res;
1298
1299         buf = wpa_config_parse_string(value, len);
1300         if (buf == NULL) {
1301                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1302                            line, idx, value);
1303                 return -1;
1304         }
1305         if (*len > MAX_WEP_KEY_LEN) {
1306                 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1307                            line, idx, value);
1308                 os_free(buf);
1309                 return -1;
1310         }
1311         if (*len && *len != 5 && *len != 13 && *len != 16) {
1312                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1313                            "this network block will be ignored",
1314                            line, (unsigned int) *len);
1315         }
1316         os_memcpy(key, buf, *len);
1317         str_clear_free(buf);
1318         res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1319         if (!os_snprintf_error(sizeof(title), res))
1320                 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1321         return 0;
1322 }
1323
1324
1325 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1326                                      struct wpa_ssid *ssid, int line,
1327                                      const char *value)
1328 {
1329         return wpa_config_parse_wep_key(ssid->wep_key[0],
1330                                         &ssid->wep_key_len[0], line,
1331                                         value, 0);
1332 }
1333
1334
1335 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1336                                      struct wpa_ssid *ssid, int line,
1337                                      const char *value)
1338 {
1339         return wpa_config_parse_wep_key(ssid->wep_key[1],
1340                                         &ssid->wep_key_len[1], line,
1341                                         value, 1);
1342 }
1343
1344
1345 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1346                                      struct wpa_ssid *ssid, int line,
1347                                      const char *value)
1348 {
1349         return wpa_config_parse_wep_key(ssid->wep_key[2],
1350                                         &ssid->wep_key_len[2], line,
1351                                         value, 2);
1352 }
1353
1354
1355 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1356                                      struct wpa_ssid *ssid, int line,
1357                                      const char *value)
1358 {
1359         return wpa_config_parse_wep_key(ssid->wep_key[3],
1360                                         &ssid->wep_key_len[3], line,
1361                                         value, 3);
1362 }
1363
1364
1365 #ifndef NO_CONFIG_WRITE
1366 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1367 {
1368         if (ssid->wep_key_len[idx] == 0)
1369                 return NULL;
1370         return wpa_config_write_string(ssid->wep_key[idx],
1371                                        ssid->wep_key_len[idx]);
1372 }
1373
1374
1375 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1376                                         struct wpa_ssid *ssid)
1377 {
1378         return wpa_config_write_wep_key(ssid, 0);
1379 }
1380
1381
1382 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1383                                         struct wpa_ssid *ssid)
1384 {
1385         return wpa_config_write_wep_key(ssid, 1);
1386 }
1387
1388
1389 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1390                                         struct wpa_ssid *ssid)
1391 {
1392         return wpa_config_write_wep_key(ssid, 2);
1393 }
1394
1395
1396 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1397                                         struct wpa_ssid *ssid)
1398 {
1399         return wpa_config_write_wep_key(ssid, 3);
1400 }
1401 #endif /* NO_CONFIG_WRITE */
1402
1403
1404 #ifdef CONFIG_P2P
1405
1406 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1407                                             struct wpa_ssid *ssid, int line,
1408                                             const char *value)
1409 {
1410         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1411             os_strcmp(value, "any") == 0) {
1412                 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1413                 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1414                 return 0;
1415         }
1416         if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1417                 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1418                            line, value);
1419                 return -1;
1420         }
1421         ssid->bssid_set = 1;
1422         wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1423                    MAC2STR(ssid->go_p2p_dev_addr));
1424         return 0;
1425 }
1426
1427
1428 #ifndef NO_CONFIG_WRITE
1429 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1430                                                struct wpa_ssid *ssid)
1431 {
1432         char *value;
1433         int res;
1434
1435         if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1436                 return NULL;
1437
1438         value = os_malloc(20);
1439         if (value == NULL)
1440                 return NULL;
1441         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1442         if (os_snprintf_error(20, res)) {
1443                 os_free(value);
1444                 return NULL;
1445         }
1446         value[20 - 1] = '\0';
1447         return value;
1448 }
1449 #endif /* NO_CONFIG_WRITE */
1450
1451
1452 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1453                                             struct wpa_ssid *ssid, int line,
1454                                             const char *value)
1455 {
1456         const char *pos;
1457         u8 *buf, *n, addr[ETH_ALEN];
1458         size_t count;
1459
1460         buf = NULL;
1461         count = 0;
1462
1463         pos = value;
1464         while (pos && *pos) {
1465                 while (*pos == ' ')
1466                         pos++;
1467
1468                 if (hwaddr_aton(pos, addr)) {
1469                         if (count == 0) {
1470                                 wpa_printf(MSG_ERROR, "Line %d: Invalid "
1471                                            "p2p_client_list address '%s'.",
1472                                            line, value);
1473                                 os_free(buf);
1474                                 return -1;
1475                         }
1476                         /* continue anyway since this could have been from a
1477                          * truncated configuration file line */
1478                         wpa_printf(MSG_INFO, "Line %d: Ignore likely "
1479                                    "truncated p2p_client_list address '%s'",
1480                                    line, pos);
1481                 } else {
1482                         n = os_realloc_array(buf, count + 1, ETH_ALEN);
1483                         if (n == NULL) {
1484                                 os_free(buf);
1485                                 return -1;
1486                         }
1487                         buf = n;
1488                         os_memmove(buf + ETH_ALEN, buf, count * ETH_ALEN);
1489                         os_memcpy(buf, addr, ETH_ALEN);
1490                         count++;
1491                         wpa_hexdump(MSG_MSGDUMP, "p2p_client_list",
1492                                     addr, ETH_ALEN);
1493                 }
1494
1495                 pos = os_strchr(pos, ' ');
1496         }
1497
1498         os_free(ssid->p2p_client_list);
1499         ssid->p2p_client_list = buf;
1500         ssid->num_p2p_clients = count;
1501
1502         return 0;
1503 }
1504
1505
1506 #ifndef NO_CONFIG_WRITE
1507 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1508                                                struct wpa_ssid *ssid)
1509 {
1510         char *value, *end, *pos;
1511         int res;
1512         size_t i;
1513
1514         if (ssid->p2p_client_list == NULL || ssid->num_p2p_clients == 0)
1515                 return NULL;
1516
1517         value = os_malloc(20 * ssid->num_p2p_clients);
1518         if (value == NULL)
1519                 return NULL;
1520         pos = value;
1521         end = value + 20 * ssid->num_p2p_clients;
1522
1523         for (i = ssid->num_p2p_clients; i > 0; i--) {
1524                 res = os_snprintf(pos, end - pos, MACSTR " ",
1525                                   MAC2STR(ssid->p2p_client_list +
1526                                           (i - 1) * ETH_ALEN));
1527                 if (os_snprintf_error(end - pos, res)) {
1528                         os_free(value);
1529                         return NULL;
1530                 }
1531                 pos += res;
1532         }
1533
1534         if (pos > value)
1535                 pos[-1] = '\0';
1536
1537         return value;
1538 }
1539 #endif /* NO_CONFIG_WRITE */
1540
1541
1542 static int wpa_config_parse_psk_list(const struct parse_data *data,
1543                                      struct wpa_ssid *ssid, int line,
1544                                      const char *value)
1545 {
1546         struct psk_list_entry *p;
1547         const char *pos;
1548
1549         p = os_zalloc(sizeof(*p));
1550         if (p == NULL)
1551                 return -1;
1552
1553         pos = value;
1554         if (os_strncmp(pos, "P2P-", 4) == 0) {
1555                 p->p2p = 1;
1556                 pos += 4;
1557         }
1558
1559         if (hwaddr_aton(pos, p->addr)) {
1560                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1561                            line, pos);
1562                 os_free(p);
1563                 return -1;
1564         }
1565         pos += 17;
1566         if (*pos != '-') {
1567                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1568                            line, pos);
1569                 os_free(p);
1570                 return -1;
1571         }
1572         pos++;
1573
1574         if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1575                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1576                            line, pos);
1577                 os_free(p);
1578                 return -1;
1579         }
1580
1581         dl_list_add(&ssid->psk_list, &p->list);
1582
1583         return 0;
1584 }
1585
1586
1587 #ifndef NO_CONFIG_WRITE
1588 static char * wpa_config_write_psk_list(const struct parse_data *data,
1589                                         struct wpa_ssid *ssid)
1590 {
1591         return NULL;
1592 }
1593 #endif /* NO_CONFIG_WRITE */
1594
1595 #endif /* CONFIG_P2P */
1596
1597
1598 #ifdef CONFIG_MESH
1599
1600 static int wpa_config_parse_mesh_ht_mode(const struct parse_data *data,
1601                                          struct wpa_ssid *ssid, int line,
1602                                          const char *value)
1603 {
1604         int htval = 0;
1605
1606         if (os_strcmp(value, "NOHT") == 0)
1607                 htval = CHAN_NO_HT;
1608         else if (os_strcmp(value, "HT20") == 0)
1609                 htval = CHAN_HT20;
1610         else if (os_strcmp(value, "HT40-") == 0)
1611                 htval = CHAN_HT40MINUS;
1612         else if (os_strcmp(value, "HT40+") == 0)
1613                 htval = CHAN_HT40PLUS;
1614         else {
1615                 wpa_printf(MSG_ERROR,
1616                            "Line %d: no ht_mode configured.", line);
1617                 return -1;
1618         }
1619
1620         wpa_printf(MSG_MSGDUMP, "mesh_ht_mode: 0x%x", htval);
1621         ssid->mesh_ht_mode = htval;
1622         return 0;
1623 }
1624
1625
1626 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1627                                              struct wpa_ssid *ssid, int line,
1628                                              const char *value)
1629 {
1630         int *rates = wpa_config_parse_int_array(value);
1631
1632         if (rates == NULL) {
1633                 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1634                            line, value);
1635                 return -1;
1636         }
1637         if (rates[0] == 0) {
1638                 os_free(rates);
1639                 rates = NULL;
1640         }
1641
1642         os_free(ssid->mesh_basic_rates);
1643         ssid->mesh_basic_rates = rates;
1644
1645         return 0;
1646 }
1647
1648
1649 #ifndef NO_CONFIG_WRITE
1650
1651 static char * wpa_config_write_mesh_ht_mode(const struct parse_data *data,
1652                                             struct wpa_ssid *ssid)
1653 {
1654         char *val;
1655
1656         switch (ssid->mesh_ht_mode) {
1657         default:
1658                 val = NULL;
1659                 break;
1660         case CHAN_NO_HT:
1661                 val = "NOHT";
1662                 break;
1663         case CHAN_HT20:
1664                 val = "HT20";
1665                 break;
1666         case CHAN_HT40MINUS:
1667                 val = "HT40-";
1668                 break;
1669         case CHAN_HT40PLUS:
1670                 val = "HT40+";
1671                 break;
1672         }
1673         return val ? os_strdup(val) : NULL;
1674 }
1675
1676
1677 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1678                                                 struct wpa_ssid *ssid)
1679 {
1680         return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1681 }
1682
1683 #endif /* NO_CONFIG_WRITE */
1684
1685 #endif /* CONFIG_MESH */
1686
1687
1688 /* Helper macros for network block parser */
1689
1690 #ifdef OFFSET
1691 #undef OFFSET
1692 #endif /* OFFSET */
1693 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1694 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1695
1696 /* STR: Define a string variable for an ASCII string; f = field name */
1697 #ifdef NO_CONFIG_WRITE
1698 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1699 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1700 #else /* NO_CONFIG_WRITE */
1701 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1702 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1703 #endif /* NO_CONFIG_WRITE */
1704 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1705 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1706 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1707 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1708
1709 /* STR_LEN: Define a string variable with a separate variable for storing the
1710  * data length. Unlike STR(), this can be used to store arbitrary binary data
1711  * (i.e., even nul termination character). */
1712 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1713 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1714 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1715 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1716 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1717
1718 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1719  * explicitly specified. */
1720 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1721 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1722 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1723
1724 #ifdef NO_CONFIG_WRITE
1725 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1726 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1727 #else /* NO_CONFIG_WRITE */
1728 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1729         OFFSET(f), (void *) 0
1730 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1731         OFFSET(eap.f), (void *) 0
1732 #endif /* NO_CONFIG_WRITE */
1733
1734 /* INT: Define an integer variable */
1735 #define INT(f) _INT(f), NULL, NULL, 0
1736 #define INTe(f) _INTe(f), NULL, NULL, 0
1737
1738 /* INT_RANGE: Define an integer variable with allowed value range */
1739 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1740
1741 /* FUNC: Define a configuration variable that uses a custom function for
1742  * parsing and writing the value. */
1743 #ifdef NO_CONFIG_WRITE
1744 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1745 #else /* NO_CONFIG_WRITE */
1746 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1747         NULL, NULL, NULL, NULL
1748 #endif /* NO_CONFIG_WRITE */
1749 #define FUNC(f) _FUNC(f), 0
1750 #define FUNC_KEY(f) _FUNC(f), 1
1751
1752 /*
1753  * Table of network configuration variables. This table is used to parse each
1754  * network configuration variable, e.g., each line in wpa_supplicant.conf file
1755  * that is inside a network block.
1756  *
1757  * This table is generated using the helper macros defined above and with
1758  * generous help from the C pre-processor. The field name is stored as a string
1759  * into .name and for STR and INT types, the offset of the target buffer within
1760  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1761  * offset to the field containing the length of the configuration variable.
1762  * .param3 and .param4 can be used to mark the allowed range (length for STR
1763  * and value for INT).
1764  *
1765  * For each configuration line in wpa_supplicant.conf, the parser goes through
1766  * this table and select the entry that matches with the field name. The parser
1767  * function (.parser) is then called to parse the actual value of the field.
1768  *
1769  * This kind of mechanism makes it easy to add new configuration parameters,
1770  * since only one line needs to be added into this table and into the
1771  * struct wpa_ssid definition if the new variable is either a string or
1772  * integer. More complex types will need to use their own parser and writer
1773  * functions.
1774  */
1775 static const struct parse_data ssid_fields[] = {
1776         { STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1777         { INT_RANGE(scan_ssid, 0, 1) },
1778         { FUNC(bssid) },
1779         { FUNC_KEY(psk) },
1780         { FUNC(proto) },
1781         { FUNC(key_mgmt) },
1782         { INT(bg_scan_period) },
1783         { FUNC(pairwise) },
1784         { FUNC(group) },
1785         { FUNC(auth_alg) },
1786         { FUNC(scan_freq) },
1787         { FUNC(freq_list) },
1788 #ifdef IEEE8021X_EAPOL
1789         { FUNC(eap) },
1790         { STR_LENe(identity) },
1791         { STR_LENe(anonymous_identity) },
1792         { FUNC_KEY(password) },
1793         { STRe(ca_cert) },
1794         { STRe(ca_path) },
1795         { STRe(client_cert) },
1796         { STRe(private_key) },
1797         { STR_KEYe(private_key_passwd) },
1798         { STRe(dh_file) },
1799         { STRe(subject_match) },
1800         { STRe(altsubject_match) },
1801         { STRe(domain_suffix_match) },
1802         { STRe(ca_cert2) },
1803         { STRe(ca_path2) },
1804         { STRe(client_cert2) },
1805         { STRe(private_key2) },
1806         { STR_KEYe(private_key2_passwd) },
1807         { STRe(dh_file2) },
1808         { STRe(subject_match2) },
1809         { STRe(altsubject_match2) },
1810         { STRe(domain_suffix_match2) },
1811         { STRe(phase1) },
1812         { STRe(phase2) },
1813         { STRe(pcsc) },
1814         { STR_KEYe(pin) },
1815         { STRe(engine_id) },
1816         { STRe(key_id) },
1817         { STRe(cert_id) },
1818         { STRe(ca_cert_id) },
1819         { STR_KEYe(pin2) },
1820         { STRe(engine2_id) },
1821         { STRe(key2_id) },
1822         { STRe(cert2_id) },
1823         { STRe(ca_cert2_id) },
1824         { INTe(engine) },
1825         { INTe(engine2) },
1826         { INT(eapol_flags) },
1827         { INTe(sim_num) },
1828         { STRe(openssl_ciphers) },
1829         { INTe(erp) },
1830 #endif /* IEEE8021X_EAPOL */
1831         { FUNC_KEY(wep_key0) },
1832         { FUNC_KEY(wep_key1) },
1833         { FUNC_KEY(wep_key2) },
1834         { FUNC_KEY(wep_key3) },
1835         { INT(wep_tx_keyidx) },
1836         { INT(priority) },
1837 #ifdef IEEE8021X_EAPOL
1838         { INT(eap_workaround) },
1839         { STRe(pac_file) },
1840         { INTe(fragment_size) },
1841         { INTe(ocsp) },
1842 #endif /* IEEE8021X_EAPOL */
1843 #ifdef CONFIG_MESH
1844         { INT_RANGE(mode, 0, 5) },
1845         { INT_RANGE(no_auto_peer, 0, 1) },
1846 #else /* CONFIG_MESH */
1847         { INT_RANGE(mode, 0, 4) },
1848 #endif /* CONFIG_MESH */
1849         { INT_RANGE(proactive_key_caching, 0, 1) },
1850         { INT_RANGE(disabled, 0, 2) },
1851         { STR(id_str) },
1852 #ifdef CONFIG_IEEE80211W
1853         { INT_RANGE(ieee80211w, 0, 2) },
1854 #endif /* CONFIG_IEEE80211W */
1855         { INT_RANGE(peerkey, 0, 1) },
1856         { INT_RANGE(mixed_cell, 0, 1) },
1857         { INT_RANGE(frequency, 0, 65000) },
1858 #ifdef CONFIG_MESH
1859         { FUNC(mesh_ht_mode) },
1860         { FUNC(mesh_basic_rates) },
1861         { INT(dot11MeshMaxRetries) },
1862         { INT(dot11MeshRetryTimeout) },
1863         { INT(dot11MeshConfirmTimeout) },
1864         { INT(dot11MeshHoldingTimeout) },
1865 #endif /* CONFIG_MESH */
1866         { INT(wpa_ptk_rekey) },
1867         { STR(bgscan) },
1868         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1869 #ifdef CONFIG_P2P
1870         { FUNC(go_p2p_dev_addr) },
1871         { FUNC(p2p_client_list) },
1872         { FUNC(psk_list) },
1873 #endif /* CONFIG_P2P */
1874 #ifdef CONFIG_HT_OVERRIDES
1875         { INT_RANGE(disable_ht, 0, 1) },
1876         { INT_RANGE(disable_ht40, -1, 1) },
1877         { INT_RANGE(disable_sgi, 0, 1) },
1878         { INT_RANGE(disable_ldpc, 0, 1) },
1879         { INT_RANGE(ht40_intolerant, 0, 1) },
1880         { INT_RANGE(disable_max_amsdu, -1, 1) },
1881         { INT_RANGE(ampdu_factor, -1, 3) },
1882         { INT_RANGE(ampdu_density, -1, 7) },
1883         { STR(ht_mcs) },
1884 #endif /* CONFIG_HT_OVERRIDES */
1885 #ifdef CONFIG_VHT_OVERRIDES
1886         { INT_RANGE(disable_vht, 0, 1) },
1887         { INT(vht_capa) },
1888         { INT(vht_capa_mask) },
1889         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1890         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1891         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1892         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1893         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1894         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1895         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1896         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1897         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1898         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1899         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1900         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1901         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1902         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1903         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1904         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1905 #endif /* CONFIG_VHT_OVERRIDES */
1906         { INT(ap_max_inactivity) },
1907         { INT(dtim_period) },
1908         { INT(beacon_int) },
1909 #ifdef CONFIG_MACSEC
1910         { INT_RANGE(macsec_policy, 0, 1) },
1911 #endif /* CONFIG_MACSEC */
1912 #ifdef CONFIG_HS20
1913         { INT(update_identifier) },
1914 #endif /* CONFIG_HS20 */
1915         { INT_RANGE(mac_addr, 0, 2) },
1916 };
1917
1918 #undef OFFSET
1919 #undef _STR
1920 #undef STR
1921 #undef STR_KEY
1922 #undef _STR_LEN
1923 #undef STR_LEN
1924 #undef STR_LEN_KEY
1925 #undef _STR_RANGE
1926 #undef STR_RANGE
1927 #undef STR_RANGE_KEY
1928 #undef _INT
1929 #undef INT
1930 #undef INT_RANGE
1931 #undef _FUNC
1932 #undef FUNC
1933 #undef FUNC_KEY
1934 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
1935
1936
1937 /**
1938  * wpa_config_add_prio_network - Add a network to priority lists
1939  * @config: Configuration data from wpa_config_read()
1940  * @ssid: Pointer to the network configuration to be added to the list
1941  * Returns: 0 on success, -1 on failure
1942  *
1943  * This function is used to add a network block to the priority list of
1944  * networks. This must be called for each network when reading in the full
1945  * configuration. In addition, this can be used indirectly when updating
1946  * priorities by calling wpa_config_update_prio_list().
1947  */
1948 int wpa_config_add_prio_network(struct wpa_config *config,
1949                                 struct wpa_ssid *ssid)
1950 {
1951         int prio;
1952         struct wpa_ssid *prev, **nlist;
1953
1954         /*
1955          * Add to an existing priority list if one is available for the
1956          * configured priority level for this network.
1957          */
1958         for (prio = 0; prio < config->num_prio; prio++) {
1959                 prev = config->pssid[prio];
1960                 if (prev->priority == ssid->priority) {
1961                         while (prev->pnext)
1962                                 prev = prev->pnext;
1963                         prev->pnext = ssid;
1964                         return 0;
1965                 }
1966         }
1967
1968         /* First network for this priority - add a new priority list */
1969         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
1970                                  sizeof(struct wpa_ssid *));
1971         if (nlist == NULL)
1972                 return -1;
1973
1974         for (prio = 0; prio < config->num_prio; prio++) {
1975                 if (nlist[prio]->priority < ssid->priority) {
1976                         os_memmove(&nlist[prio + 1], &nlist[prio],
1977                                    (config->num_prio - prio) *
1978                                    sizeof(struct wpa_ssid *));
1979                         break;
1980                 }
1981         }
1982
1983         nlist[prio] = ssid;
1984         config->num_prio++;
1985         config->pssid = nlist;
1986
1987         return 0;
1988 }
1989
1990
1991 /**
1992  * wpa_config_update_prio_list - Update network priority list
1993  * @config: Configuration data from wpa_config_read()
1994  * Returns: 0 on success, -1 on failure
1995  *
1996  * This function is called to update the priority list of networks in the
1997  * configuration when a network is being added or removed. This is also called
1998  * if a priority for a network is changed.
1999  */
2000 int wpa_config_update_prio_list(struct wpa_config *config)
2001 {
2002         struct wpa_ssid *ssid;
2003         int ret = 0;
2004
2005         os_free(config->pssid);
2006         config->pssid = NULL;
2007         config->num_prio = 0;
2008
2009         ssid = config->ssid;
2010         while (ssid) {
2011                 ssid->pnext = NULL;
2012                 if (wpa_config_add_prio_network(config, ssid) < 0)
2013                         ret = -1;
2014                 ssid = ssid->next;
2015         }
2016
2017         return ret;
2018 }
2019
2020
2021 #ifdef IEEE8021X_EAPOL
2022 static void eap_peer_config_free(struct eap_peer_config *eap)
2023 {
2024         os_free(eap->eap_methods);
2025         bin_clear_free(eap->identity, eap->identity_len);
2026         os_free(eap->anonymous_identity);
2027         bin_clear_free(eap->password, eap->password_len);
2028         os_free(eap->ca_cert);
2029         os_free(eap->ca_path);
2030         os_free(eap->client_cert);
2031         os_free(eap->private_key);
2032         str_clear_free(eap->private_key_passwd);
2033         os_free(eap->dh_file);
2034         os_free(eap->subject_match);
2035         os_free(eap->altsubject_match);
2036         os_free(eap->domain_suffix_match);
2037         os_free(eap->ca_cert2);
2038         os_free(eap->ca_path2);
2039         os_free(eap->client_cert2);
2040         os_free(eap->private_key2);
2041         str_clear_free(eap->private_key2_passwd);
2042         os_free(eap->dh_file2);
2043         os_free(eap->subject_match2);
2044         os_free(eap->altsubject_match2);
2045         os_free(eap->domain_suffix_match2);
2046         os_free(eap->phase1);
2047         os_free(eap->phase2);
2048         os_free(eap->pcsc);
2049         str_clear_free(eap->pin);
2050         os_free(eap->engine_id);
2051         os_free(eap->key_id);
2052         os_free(eap->cert_id);
2053         os_free(eap->ca_cert_id);
2054         os_free(eap->key2_id);
2055         os_free(eap->cert2_id);
2056         os_free(eap->ca_cert2_id);
2057         str_clear_free(eap->pin2);
2058         os_free(eap->engine2_id);
2059         os_free(eap->otp);
2060         os_free(eap->pending_req_otp);
2061         os_free(eap->pac_file);
2062         bin_clear_free(eap->new_password, eap->new_password_len);
2063         str_clear_free(eap->external_sim_resp);
2064         os_free(eap->openssl_ciphers);
2065 }
2066 #endif /* IEEE8021X_EAPOL */
2067
2068
2069 /**
2070  * wpa_config_free_ssid - Free network/ssid configuration data
2071  * @ssid: Configuration data for the network
2072  *
2073  * This function frees all resources allocated for the network configuration
2074  * data.
2075  */
2076 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2077 {
2078         struct psk_list_entry *psk;
2079
2080         os_free(ssid->ssid);
2081         str_clear_free(ssid->passphrase);
2082         os_free(ssid->ext_psk);
2083 #ifdef IEEE8021X_EAPOL
2084         eap_peer_config_free(&ssid->eap);
2085 #endif /* IEEE8021X_EAPOL */
2086         os_free(ssid->id_str);
2087         os_free(ssid->scan_freq);
2088         os_free(ssid->freq_list);
2089         os_free(ssid->bgscan);
2090         os_free(ssid->p2p_client_list);
2091 #ifdef CONFIG_HT_OVERRIDES
2092         os_free(ssid->ht_mcs);
2093 #endif /* CONFIG_HT_OVERRIDES */
2094 #ifdef CONFIG_MESH
2095         os_free(ssid->mesh_basic_rates);
2096 #endif /* CONFIG_MESH */
2097         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2098                                     list))) {
2099                 dl_list_del(&psk->list);
2100                 bin_clear_free(psk, sizeof(*psk));
2101         }
2102         bin_clear_free(ssid, sizeof(*ssid));
2103 }
2104
2105
2106 void wpa_config_free_cred(struct wpa_cred *cred)
2107 {
2108         size_t i;
2109
2110         os_free(cred->realm);
2111         str_clear_free(cred->username);
2112         str_clear_free(cred->password);
2113         os_free(cred->ca_cert);
2114         os_free(cred->client_cert);
2115         os_free(cred->private_key);
2116         str_clear_free(cred->private_key_passwd);
2117         os_free(cred->imsi);
2118         str_clear_free(cred->milenage);
2119         for (i = 0; i < cred->num_domain; i++)
2120                 os_free(cred->domain[i]);
2121         os_free(cred->domain);
2122         os_free(cred->domain_suffix_match);
2123         os_free(cred->eap_method);
2124         os_free(cred->phase1);
2125         os_free(cred->phase2);
2126         os_free(cred->excluded_ssid);
2127         os_free(cred->roaming_partner);
2128         os_free(cred->provisioning_sp);
2129         for (i = 0; i < cred->num_req_conn_capab; i++)
2130                 os_free(cred->req_conn_capab_port[i]);
2131         os_free(cred->req_conn_capab_port);
2132         os_free(cred->req_conn_capab_proto);
2133         os_free(cred);
2134 }
2135
2136
2137 void wpa_config_flush_blobs(struct wpa_config *config)
2138 {
2139 #ifndef CONFIG_NO_CONFIG_BLOBS
2140         struct wpa_config_blob *blob, *prev;
2141
2142         blob = config->blobs;
2143         config->blobs = NULL;
2144         while (blob) {
2145                 prev = blob;
2146                 blob = blob->next;
2147                 wpa_config_free_blob(prev);
2148         }
2149 #endif /* CONFIG_NO_CONFIG_BLOBS */
2150 }
2151
2152
2153 /**
2154  * wpa_config_free - Free configuration data
2155  * @config: Configuration data from wpa_config_read()
2156  *
2157  * This function frees all resources allocated for the configuration data by
2158  * wpa_config_read().
2159  */
2160 void wpa_config_free(struct wpa_config *config)
2161 {
2162         struct wpa_ssid *ssid, *prev = NULL;
2163         struct wpa_cred *cred, *cprev;
2164
2165         ssid = config->ssid;
2166         while (ssid) {
2167                 prev = ssid;
2168                 ssid = ssid->next;
2169                 wpa_config_free_ssid(prev);
2170         }
2171
2172         cred = config->cred;
2173         while (cred) {
2174                 cprev = cred;
2175                 cred = cred->next;
2176                 wpa_config_free_cred(cprev);
2177         }
2178
2179         wpa_config_flush_blobs(config);
2180
2181         wpabuf_free(config->wps_vendor_ext_m1);
2182         os_free(config->ctrl_interface);
2183         os_free(config->ctrl_interface_group);
2184         os_free(config->opensc_engine_path);
2185         os_free(config->pkcs11_engine_path);
2186         os_free(config->pkcs11_module_path);
2187         os_free(config->openssl_ciphers);
2188         os_free(config->pcsc_reader);
2189         str_clear_free(config->pcsc_pin);
2190         os_free(config->driver_param);
2191         os_free(config->device_name);
2192         os_free(config->manufacturer);
2193         os_free(config->model_name);
2194         os_free(config->model_number);
2195         os_free(config->serial_number);
2196         os_free(config->config_methods);
2197         os_free(config->p2p_ssid_postfix);
2198         os_free(config->pssid);
2199         os_free(config->p2p_pref_chan);
2200         os_free(config->p2p_no_go_freq.range);
2201         os_free(config->autoscan);
2202         os_free(config->freq_list);
2203         wpabuf_free(config->wps_nfc_dh_pubkey);
2204         wpabuf_free(config->wps_nfc_dh_privkey);
2205         wpabuf_free(config->wps_nfc_dev_pw);
2206         os_free(config->ext_password_backend);
2207         os_free(config->sae_groups);
2208         wpabuf_free(config->ap_vendor_elements);
2209         os_free(config->osu_dir);
2210         os_free(config->wowlan_triggers);
2211         os_free(config);
2212 }
2213
2214
2215 /**
2216  * wpa_config_foreach_network - Iterate over each configured network
2217  * @config: Configuration data from wpa_config_read()
2218  * @func: Callback function to process each network
2219  * @arg: Opaque argument to pass to callback function
2220  *
2221  * Iterate over the set of configured networks calling the specified
2222  * function for each item. We guard against callbacks removing the
2223  * supplied network.
2224  */
2225 void wpa_config_foreach_network(struct wpa_config *config,
2226                                 void (*func)(void *, struct wpa_ssid *),
2227                                 void *arg)
2228 {
2229         struct wpa_ssid *ssid, *next;
2230
2231         ssid = config->ssid;
2232         while (ssid) {
2233                 next = ssid->next;
2234                 func(arg, ssid);
2235                 ssid = next;
2236         }
2237 }
2238
2239
2240 /**
2241  * wpa_config_get_network - Get configured network based on id
2242  * @config: Configuration data from wpa_config_read()
2243  * @id: Unique network id to search for
2244  * Returns: Network configuration or %NULL if not found
2245  */
2246 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2247 {
2248         struct wpa_ssid *ssid;
2249
2250         ssid = config->ssid;
2251         while (ssid) {
2252                 if (id == ssid->id)
2253                         break;
2254                 ssid = ssid->next;
2255         }
2256
2257         return ssid;
2258 }
2259
2260
2261 /**
2262  * wpa_config_add_network - Add a new network with empty configuration
2263  * @config: Configuration data from wpa_config_read()
2264  * Returns: The new network configuration or %NULL if operation failed
2265  */
2266 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2267 {
2268         int id;
2269         struct wpa_ssid *ssid, *last = NULL;
2270
2271         id = -1;
2272         ssid = config->ssid;
2273         while (ssid) {
2274                 if (ssid->id > id)
2275                         id = ssid->id;
2276                 last = ssid;
2277                 ssid = ssid->next;
2278         }
2279         id++;
2280
2281         ssid = os_zalloc(sizeof(*ssid));
2282         if (ssid == NULL)
2283                 return NULL;
2284         ssid->id = id;
2285         dl_list_init(&ssid->psk_list);
2286         if (last)
2287                 last->next = ssid;
2288         else
2289                 config->ssid = ssid;
2290
2291         wpa_config_update_prio_list(config);
2292
2293         return ssid;
2294 }
2295
2296
2297 /**
2298  * wpa_config_remove_network - Remove a configured network based on id
2299  * @config: Configuration data from wpa_config_read()
2300  * @id: Unique network id to search for
2301  * Returns: 0 on success, or -1 if the network was not found
2302  */
2303 int wpa_config_remove_network(struct wpa_config *config, int id)
2304 {
2305         struct wpa_ssid *ssid, *prev = NULL;
2306
2307         ssid = config->ssid;
2308         while (ssid) {
2309                 if (id == ssid->id)
2310                         break;
2311                 prev = ssid;
2312                 ssid = ssid->next;
2313         }
2314
2315         if (ssid == NULL)
2316                 return -1;
2317
2318         if (prev)
2319                 prev->next = ssid->next;
2320         else
2321                 config->ssid = ssid->next;
2322
2323         wpa_config_update_prio_list(config);
2324         wpa_config_free_ssid(ssid);
2325         return 0;
2326 }
2327
2328
2329 /**
2330  * wpa_config_set_network_defaults - Set network default values
2331  * @ssid: Pointer to network configuration data
2332  */
2333 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2334 {
2335         ssid->proto = DEFAULT_PROTO;
2336         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2337         ssid->group_cipher = DEFAULT_GROUP;
2338         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2339         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2340 #ifdef IEEE8021X_EAPOL
2341         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2342         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2343         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2344         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2345 #endif /* IEEE8021X_EAPOL */
2346 #ifdef CONFIG_MESH
2347         ssid->mesh_ht_mode = DEFAULT_MESH_HT_MODE;
2348         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2349         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2350         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2351         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2352 #endif /* CONFIG_MESH */
2353 #ifdef CONFIG_HT_OVERRIDES
2354         ssid->disable_ht = DEFAULT_DISABLE_HT;
2355         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2356         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2357         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2358         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2359         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2360         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2361 #endif /* CONFIG_HT_OVERRIDES */
2362 #ifdef CONFIG_VHT_OVERRIDES
2363         ssid->vht_rx_mcs_nss_1 = -1;
2364         ssid->vht_rx_mcs_nss_2 = -1;
2365         ssid->vht_rx_mcs_nss_3 = -1;
2366         ssid->vht_rx_mcs_nss_4 = -1;
2367         ssid->vht_rx_mcs_nss_5 = -1;
2368         ssid->vht_rx_mcs_nss_6 = -1;
2369         ssid->vht_rx_mcs_nss_7 = -1;
2370         ssid->vht_rx_mcs_nss_8 = -1;
2371         ssid->vht_tx_mcs_nss_1 = -1;
2372         ssid->vht_tx_mcs_nss_2 = -1;
2373         ssid->vht_tx_mcs_nss_3 = -1;
2374         ssid->vht_tx_mcs_nss_4 = -1;
2375         ssid->vht_tx_mcs_nss_5 = -1;
2376         ssid->vht_tx_mcs_nss_6 = -1;
2377         ssid->vht_tx_mcs_nss_7 = -1;
2378         ssid->vht_tx_mcs_nss_8 = -1;
2379 #endif /* CONFIG_VHT_OVERRIDES */
2380         ssid->proactive_key_caching = -1;
2381 #ifdef CONFIG_IEEE80211W
2382         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2383 #endif /* CONFIG_IEEE80211W */
2384         ssid->mac_addr = -1;
2385 }
2386
2387
2388 /**
2389  * wpa_config_set - Set a variable in network configuration
2390  * @ssid: Pointer to network configuration data
2391  * @var: Variable name, e.g., "ssid"
2392  * @value: Variable value
2393  * @line: Line number in configuration file or 0 if not used
2394  * Returns: 0 on success, -1 on failure
2395  *
2396  * This function can be used to set network configuration variables based on
2397  * both the configuration file and management interface input. The value
2398  * parameter must be in the same format as the text-based configuration file is
2399  * using. For example, strings are using double quotation marks.
2400  */
2401 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2402                    int line)
2403 {
2404         size_t i;
2405         int ret = 0;
2406
2407         if (ssid == NULL || var == NULL || value == NULL)
2408                 return -1;
2409
2410         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2411                 const struct parse_data *field = &ssid_fields[i];
2412                 if (os_strcmp(var, field->name) != 0)
2413                         continue;
2414
2415                 if (field->parser(field, ssid, line, value)) {
2416                         if (line) {
2417                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2418                                            "parse %s '%s'.", line, var, value);
2419                         }
2420                         ret = -1;
2421                 }
2422                 break;
2423         }
2424         if (i == NUM_SSID_FIELDS) {
2425                 if (line) {
2426                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2427                                    "'%s'.", line, var);
2428                 }
2429                 ret = -1;
2430         }
2431
2432         return ret;
2433 }
2434
2435
2436 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2437                           const char *value)
2438 {
2439         size_t len;
2440         char *buf;
2441         int ret;
2442
2443         len = os_strlen(value);
2444         buf = os_malloc(len + 3);
2445         if (buf == NULL)
2446                 return -1;
2447         buf[0] = '"';
2448         os_memcpy(buf + 1, value, len);
2449         buf[len + 1] = '"';
2450         buf[len + 2] = '\0';
2451         ret = wpa_config_set(ssid, var, buf, 0);
2452         os_free(buf);
2453         return ret;
2454 }
2455
2456
2457 /**
2458  * wpa_config_get_all - Get all options from network configuration
2459  * @ssid: Pointer to network configuration data
2460  * @get_keys: Determines if keys/passwords will be included in returned list
2461  *      (if they may be exported)
2462  * Returns: %NULL terminated list of all set keys and their values in the form
2463  * of [key1, val1, key2, val2, ... , NULL]
2464  *
2465  * This function can be used to get list of all configured network properties.
2466  * The caller is responsible for freeing the returned list and all its
2467  * elements.
2468  */
2469 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2470 {
2471         const struct parse_data *field;
2472         char *key, *value;
2473         size_t i;
2474         char **props;
2475         int fields_num;
2476
2477         get_keys = get_keys && ssid->export_keys;
2478
2479         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2480         if (!props)
2481                 return NULL;
2482
2483         fields_num = 0;
2484         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2485                 field = &ssid_fields[i];
2486                 if (field->key_data && !get_keys)
2487                         continue;
2488                 value = field->writer(field, ssid);
2489                 if (value == NULL)
2490                         continue;
2491                 if (os_strlen(value) == 0) {
2492                         os_free(value);
2493                         continue;
2494                 }
2495
2496                 key = os_strdup(field->name);
2497                 if (key == NULL) {
2498                         os_free(value);
2499                         goto err;
2500                 }
2501
2502                 props[fields_num * 2] = key;
2503                 props[fields_num * 2 + 1] = value;
2504
2505                 fields_num++;
2506         }
2507
2508         return props;
2509
2510 err:
2511         value = *props;
2512         while (value)
2513                 os_free(value++);
2514         os_free(props);
2515         return NULL;
2516 }
2517
2518
2519 #ifndef NO_CONFIG_WRITE
2520 /**
2521  * wpa_config_get - Get a variable in network configuration
2522  * @ssid: Pointer to network configuration data
2523  * @var: Variable name, e.g., "ssid"
2524  * Returns: Value of the variable or %NULL on failure
2525  *
2526  * This function can be used to get network configuration variables. The
2527  * returned value is a copy of the configuration variable in text format, i.e,.
2528  * the same format that the text-based configuration file and wpa_config_set()
2529  * are using for the value. The caller is responsible for freeing the returned
2530  * value.
2531  */
2532 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2533 {
2534         size_t i;
2535
2536         if (ssid == NULL || var == NULL)
2537                 return NULL;
2538
2539         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2540                 const struct parse_data *field = &ssid_fields[i];
2541                 if (os_strcmp(var, field->name) == 0)
2542                         return field->writer(field, ssid);
2543         }
2544
2545         return NULL;
2546 }
2547
2548
2549 /**
2550  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2551  * @ssid: Pointer to network configuration data
2552  * @var: Variable name, e.g., "ssid"
2553  * Returns: Value of the variable or %NULL on failure
2554  *
2555  * This function can be used to get network configuration variable like
2556  * wpa_config_get(). The only difference is that this functions does not expose
2557  * key/password material from the configuration. In case a key/password field
2558  * is requested, the returned value is an empty string or %NULL if the variable
2559  * is not set or "*" if the variable is set (regardless of its value). The
2560  * returned value is a copy of the configuration variable in text format, i.e,.
2561  * the same format that the text-based configuration file and wpa_config_set()
2562  * are using for the value. The caller is responsible for freeing the returned
2563  * value.
2564  */
2565 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2566 {
2567         size_t i;
2568
2569         if (ssid == NULL || var == NULL)
2570                 return NULL;
2571
2572         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2573                 const struct parse_data *field = &ssid_fields[i];
2574                 if (os_strcmp(var, field->name) == 0) {
2575                         char *res = field->writer(field, ssid);
2576                         if (field->key_data) {
2577                                 if (res && res[0]) {
2578                                         wpa_printf(MSG_DEBUG, "Do not allow "
2579                                                    "key_data field to be "
2580                                                    "exposed");
2581                                         str_clear_free(res);
2582                                         return os_strdup("*");
2583                                 }
2584
2585                                 os_free(res);
2586                                 return NULL;
2587                         }
2588                         return res;
2589                 }
2590         }
2591
2592         return NULL;
2593 }
2594 #endif /* NO_CONFIG_WRITE */
2595
2596
2597 /**
2598  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2599  * @ssid: Pointer to network configuration data
2600  *
2601  * This function must be called to update WPA PSK when either SSID or the
2602  * passphrase has changed for the network configuration.
2603  */
2604 void wpa_config_update_psk(struct wpa_ssid *ssid)
2605 {
2606 #ifndef CONFIG_NO_PBKDF2
2607         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2608                     ssid->psk, PMK_LEN);
2609         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2610                         ssid->psk, PMK_LEN);
2611         ssid->psk_set = 1;
2612 #endif /* CONFIG_NO_PBKDF2 */
2613 }
2614
2615
2616 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2617                                               const char *value)
2618 {
2619         u8 *proto;
2620         int **port;
2621         int *ports, *nports;
2622         const char *pos;
2623         unsigned int num_ports;
2624
2625         proto = os_realloc_array(cred->req_conn_capab_proto,
2626                                  cred->num_req_conn_capab + 1, sizeof(u8));
2627         if (proto == NULL)
2628                 return -1;
2629         cred->req_conn_capab_proto = proto;
2630
2631         port = os_realloc_array(cred->req_conn_capab_port,
2632                                 cred->num_req_conn_capab + 1, sizeof(int *));
2633         if (port == NULL)
2634                 return -1;
2635         cred->req_conn_capab_port = port;
2636
2637         proto[cred->num_req_conn_capab] = atoi(value);
2638
2639         pos = os_strchr(value, ':');
2640         if (pos == NULL) {
2641                 port[cred->num_req_conn_capab] = NULL;
2642                 cred->num_req_conn_capab++;
2643                 return 0;
2644         }
2645         pos++;
2646
2647         ports = NULL;
2648         num_ports = 0;
2649
2650         while (*pos) {
2651                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2652                 if (nports == NULL) {
2653                         os_free(ports);
2654                         return -1;
2655                 }
2656                 ports = nports;
2657                 ports[num_ports++] = atoi(pos);
2658
2659                 pos = os_strchr(pos, ',');
2660                 if (pos == NULL)
2661                         break;
2662                 pos++;
2663         }
2664
2665         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2666         if (nports == NULL) {
2667                 os_free(ports);
2668                 return -1;
2669         }
2670         ports = nports;
2671         ports[num_ports] = -1;
2672
2673         port[cred->num_req_conn_capab] = ports;
2674         cred->num_req_conn_capab++;
2675         return 0;
2676 }
2677
2678
2679 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2680                         const char *value, int line)
2681 {
2682         char *val;
2683         size_t len;
2684
2685         if (os_strcmp(var, "temporary") == 0) {
2686                 cred->temporary = atoi(value);
2687                 return 0;
2688         }
2689
2690         if (os_strcmp(var, "priority") == 0) {
2691                 cred->priority = atoi(value);
2692                 return 0;
2693         }
2694
2695         if (os_strcmp(var, "sp_priority") == 0) {
2696                 int prio = atoi(value);
2697                 if (prio < 0 || prio > 255)
2698                         return -1;
2699                 cred->sp_priority = prio;
2700                 return 0;
2701         }
2702
2703         if (os_strcmp(var, "pcsc") == 0) {
2704                 cred->pcsc = atoi(value);
2705                 return 0;
2706         }
2707
2708         if (os_strcmp(var, "eap") == 0) {
2709                 struct eap_method_type method;
2710                 method.method = eap_peer_get_type(value, &method.vendor);
2711                 if (method.vendor == EAP_VENDOR_IETF &&
2712                     method.method == EAP_TYPE_NONE) {
2713                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2714                                    "for a credential", line, value);
2715                         return -1;
2716                 }
2717                 os_free(cred->eap_method);
2718                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2719                 if (cred->eap_method == NULL)
2720                         return -1;
2721                 os_memcpy(cred->eap_method, &method, sizeof(method));
2722                 return 0;
2723         }
2724
2725         if (os_strcmp(var, "password") == 0 &&
2726             os_strncmp(value, "ext:", 4) == 0) {
2727                 str_clear_free(cred->password);
2728                 cred->password = os_strdup(value);
2729                 cred->ext_password = 1;
2730                 return 0;
2731         }
2732
2733         if (os_strcmp(var, "update_identifier") == 0) {
2734                 cred->update_identifier = atoi(value);
2735                 return 0;
2736         }
2737
2738         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2739                 cred->min_dl_bandwidth_home = atoi(value);
2740                 return 0;
2741         }
2742
2743         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2744                 cred->min_ul_bandwidth_home = atoi(value);
2745                 return 0;
2746         }
2747
2748         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2749                 cred->min_dl_bandwidth_roaming = atoi(value);
2750                 return 0;
2751         }
2752
2753         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2754                 cred->min_ul_bandwidth_roaming = atoi(value);
2755                 return 0;
2756         }
2757
2758         if (os_strcmp(var, "max_bss_load") == 0) {
2759                 cred->max_bss_load = atoi(value);
2760                 return 0;
2761         }
2762
2763         if (os_strcmp(var, "req_conn_capab") == 0)
2764                 return wpa_config_set_cred_req_conn_capab(cred, value);
2765
2766         if (os_strcmp(var, "ocsp") == 0) {
2767                 cred->ocsp = atoi(value);
2768                 return 0;
2769         }
2770
2771         if (os_strcmp(var, "sim_num") == 0) {
2772                 cred->sim_num = atoi(value);
2773                 return 0;
2774         }
2775
2776         val = wpa_config_parse_string(value, &len);
2777         if (val == NULL) {
2778                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2779                            "value '%s'.", line, var, value);
2780                 return -1;
2781         }
2782
2783         if (os_strcmp(var, "realm") == 0) {
2784                 os_free(cred->realm);
2785                 cred->realm = val;
2786                 return 0;
2787         }
2788
2789         if (os_strcmp(var, "username") == 0) {
2790                 str_clear_free(cred->username);
2791                 cred->username = val;
2792                 return 0;
2793         }
2794
2795         if (os_strcmp(var, "password") == 0) {
2796                 str_clear_free(cred->password);
2797                 cred->password = val;
2798                 cred->ext_password = 0;
2799                 return 0;
2800         }
2801
2802         if (os_strcmp(var, "ca_cert") == 0) {
2803                 os_free(cred->ca_cert);
2804                 cred->ca_cert = val;
2805                 return 0;
2806         }
2807
2808         if (os_strcmp(var, "client_cert") == 0) {
2809                 os_free(cred->client_cert);
2810                 cred->client_cert = val;
2811                 return 0;
2812         }
2813
2814         if (os_strcmp(var, "private_key") == 0) {
2815                 os_free(cred->private_key);
2816                 cred->private_key = val;
2817                 return 0;
2818         }
2819
2820         if (os_strcmp(var, "private_key_passwd") == 0) {
2821                 str_clear_free(cred->private_key_passwd);
2822                 cred->private_key_passwd = val;
2823                 return 0;
2824         }
2825
2826         if (os_strcmp(var, "imsi") == 0) {
2827                 os_free(cred->imsi);
2828                 cred->imsi = val;
2829                 return 0;
2830         }
2831
2832         if (os_strcmp(var, "milenage") == 0) {
2833                 str_clear_free(cred->milenage);
2834                 cred->milenage = val;
2835                 return 0;
2836         }
2837
2838         if (os_strcmp(var, "domain_suffix_match") == 0) {
2839                 os_free(cred->domain_suffix_match);
2840                 cred->domain_suffix_match = val;
2841                 return 0;
2842         }
2843
2844         if (os_strcmp(var, "domain") == 0) {
2845                 char **new_domain;
2846                 new_domain = os_realloc_array(cred->domain,
2847                                               cred->num_domain + 1,
2848                                               sizeof(char *));
2849                 if (new_domain == NULL) {
2850                         os_free(val);
2851                         return -1;
2852                 }
2853                 new_domain[cred->num_domain++] = val;
2854                 cred->domain = new_domain;
2855                 return 0;
2856         }
2857
2858         if (os_strcmp(var, "phase1") == 0) {
2859                 os_free(cred->phase1);
2860                 cred->phase1 = val;
2861                 return 0;
2862         }
2863
2864         if (os_strcmp(var, "phase2") == 0) {
2865                 os_free(cred->phase2);
2866                 cred->phase2 = val;
2867                 return 0;
2868         }
2869
2870         if (os_strcmp(var, "roaming_consortium") == 0) {
2871                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2872                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2873                                    "roaming_consortium length %d (3..15 "
2874                                    "expected)", line, (int) len);
2875                         os_free(val);
2876                         return -1;
2877                 }
2878                 os_memcpy(cred->roaming_consortium, val, len);
2879                 cred->roaming_consortium_len = len;
2880                 os_free(val);
2881                 return 0;
2882         }
2883
2884         if (os_strcmp(var, "required_roaming_consortium") == 0) {
2885                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2886                 {
2887                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2888                                    "required_roaming_consortium length %d "
2889                                    "(3..15 expected)", line, (int) len);
2890                         os_free(val);
2891                         return -1;
2892                 }
2893                 os_memcpy(cred->required_roaming_consortium, val, len);
2894                 cred->required_roaming_consortium_len = len;
2895                 os_free(val);
2896                 return 0;
2897         }
2898
2899         if (os_strcmp(var, "excluded_ssid") == 0) {
2900                 struct excluded_ssid *e;
2901
2902                 if (len > MAX_SSID_LEN) {
2903                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2904                                    "excluded_ssid length %d", line, (int) len);
2905                         os_free(val);
2906                         return -1;
2907                 }
2908
2909                 e = os_realloc_array(cred->excluded_ssid,
2910                                      cred->num_excluded_ssid + 1,
2911                                      sizeof(struct excluded_ssid));
2912                 if (e == NULL) {
2913                         os_free(val);
2914                         return -1;
2915                 }
2916                 cred->excluded_ssid = e;
2917
2918                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2919                 os_memcpy(e->ssid, val, len);
2920                 e->ssid_len = len;
2921
2922                 os_free(val);
2923
2924                 return 0;
2925         }
2926
2927         if (os_strcmp(var, "roaming_partner") == 0) {
2928                 struct roaming_partner *p;
2929                 char *pos;
2930
2931                 p = os_realloc_array(cred->roaming_partner,
2932                                      cred->num_roaming_partner + 1,
2933                                      sizeof(struct roaming_partner));
2934                 if (p == NULL) {
2935                         os_free(val);
2936                         return -1;
2937                 }
2938                 cred->roaming_partner = p;
2939
2940                 p = &cred->roaming_partner[cred->num_roaming_partner];
2941
2942                 pos = os_strchr(val, ',');
2943                 if (pos == NULL) {
2944                         os_free(val);
2945                         return -1;
2946                 }
2947                 *pos++ = '\0';
2948                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
2949                         os_free(val);
2950                         return -1;
2951                 }
2952                 os_memcpy(p->fqdn, val, pos - val);
2953
2954                 p->exact_match = atoi(pos);
2955
2956                 pos = os_strchr(pos, ',');
2957                 if (pos == NULL) {
2958                         os_free(val);
2959                         return -1;
2960                 }
2961                 *pos++ = '\0';
2962
2963                 p->priority = atoi(pos);
2964
2965                 pos = os_strchr(pos, ',');
2966                 if (pos == NULL) {
2967                         os_free(val);
2968                         return -1;
2969                 }
2970                 *pos++ = '\0';
2971
2972                 if (os_strlen(pos) >= sizeof(p->country)) {
2973                         os_free(val);
2974                         return -1;
2975                 }
2976                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
2977
2978                 cred->num_roaming_partner++;
2979                 os_free(val);
2980
2981                 return 0;
2982         }
2983
2984         if (os_strcmp(var, "provisioning_sp") == 0) {
2985                 os_free(cred->provisioning_sp);
2986                 cred->provisioning_sp = val;
2987                 return 0;
2988         }
2989
2990         if (line) {
2991                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2992                            line, var);
2993         }
2994
2995         os_free(val);
2996
2997         return -1;
2998 }
2999
3000
3001 static char * alloc_int_str(int val)
3002 {
3003         const unsigned int bufsize = 20;
3004         char *buf;
3005         int res;
3006
3007         buf = os_malloc(bufsize);
3008         if (buf == NULL)
3009                 return NULL;
3010         res = os_snprintf(buf, bufsize, "%d", val);
3011         if (os_snprintf_error(bufsize, res)) {
3012                 os_free(buf);
3013                 buf = NULL;
3014         }
3015         return buf;
3016 }
3017
3018
3019 static char * alloc_strdup(const char *str)
3020 {
3021         if (str == NULL)
3022                 return NULL;
3023         return os_strdup(str);
3024 }
3025
3026
3027 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3028 {
3029         if (os_strcmp(var, "temporary") == 0)
3030                 return alloc_int_str(cred->temporary);
3031
3032         if (os_strcmp(var, "priority") == 0)
3033                 return alloc_int_str(cred->priority);
3034
3035         if (os_strcmp(var, "sp_priority") == 0)
3036                 return alloc_int_str(cred->sp_priority);
3037
3038         if (os_strcmp(var, "pcsc") == 0)
3039                 return alloc_int_str(cred->pcsc);
3040
3041         if (os_strcmp(var, "eap") == 0) {
3042                 if (!cred->eap_method)
3043                         return NULL;
3044                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3045                                                  cred->eap_method[0].method));
3046         }
3047
3048         if (os_strcmp(var, "update_identifier") == 0)
3049                 return alloc_int_str(cred->update_identifier);
3050
3051         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3052                 return alloc_int_str(cred->min_dl_bandwidth_home);
3053
3054         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3055                 return alloc_int_str(cred->min_ul_bandwidth_home);
3056
3057         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3058                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3059
3060         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3061                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3062
3063         if (os_strcmp(var, "max_bss_load") == 0)
3064                 return alloc_int_str(cred->max_bss_load);
3065
3066         if (os_strcmp(var, "req_conn_capab") == 0) {
3067                 unsigned int i;
3068                 char *buf, *end, *pos;
3069                 int ret;
3070
3071                 if (!cred->num_req_conn_capab)
3072                         return NULL;
3073
3074                 buf = os_malloc(4000);
3075                 if (buf == NULL)
3076                         return NULL;
3077                 pos = buf;
3078                 end = pos + 4000;
3079                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3080                         int *ports;
3081
3082                         ret = os_snprintf(pos, end - pos, "%s%u",
3083                                           i > 0 ? "\n" : "",
3084                                           cred->req_conn_capab_proto[i]);
3085                         if (os_snprintf_error(end - pos, ret))
3086                                 return buf;
3087                         pos += ret;
3088
3089                         ports = cred->req_conn_capab_port[i];
3090                         if (ports) {
3091                                 int j;
3092                                 for (j = 0; ports[j] != -1; j++) {
3093                                         ret = os_snprintf(pos, end - pos,
3094                                                           "%s%d",
3095                                                           j > 0 ? "," : ":",
3096                                                           ports[j]);
3097                                         if (os_snprintf_error(end - pos, ret))
3098                                                 return buf;
3099                                         pos += ret;
3100                                 }
3101                         }
3102                 }
3103
3104                 return buf;
3105         }
3106
3107         if (os_strcmp(var, "ocsp") == 0)
3108                 return alloc_int_str(cred->ocsp);
3109
3110         if (os_strcmp(var, "realm") == 0)
3111                 return alloc_strdup(cred->realm);
3112
3113         if (os_strcmp(var, "username") == 0)
3114                 return alloc_strdup(cred->username);
3115
3116         if (os_strcmp(var, "password") == 0) {
3117                 if (!cred->password)
3118                         return NULL;
3119                 return alloc_strdup("*");
3120         }
3121
3122         if (os_strcmp(var, "ca_cert") == 0)
3123                 return alloc_strdup(cred->ca_cert);
3124
3125         if (os_strcmp(var, "client_cert") == 0)
3126                 return alloc_strdup(cred->client_cert);
3127
3128         if (os_strcmp(var, "private_key") == 0)
3129                 return alloc_strdup(cred->private_key);
3130
3131         if (os_strcmp(var, "private_key_passwd") == 0) {
3132                 if (!cred->private_key_passwd)
3133                         return NULL;
3134                 return alloc_strdup("*");
3135         }
3136
3137         if (os_strcmp(var, "imsi") == 0)
3138                 return alloc_strdup(cred->imsi);
3139
3140         if (os_strcmp(var, "milenage") == 0) {
3141                 if (!(cred->milenage))
3142                         return NULL;
3143                 return alloc_strdup("*");
3144         }
3145
3146         if (os_strcmp(var, "domain_suffix_match") == 0)
3147                 return alloc_strdup(cred->domain_suffix_match);
3148
3149         if (os_strcmp(var, "domain") == 0) {
3150                 unsigned int i;
3151                 char *buf, *end, *pos;
3152                 int ret;
3153
3154                 if (!cred->num_domain)
3155                         return NULL;
3156
3157                 buf = os_malloc(4000);
3158                 if (buf == NULL)
3159                         return NULL;
3160                 pos = buf;
3161                 end = pos + 4000;
3162
3163                 for (i = 0; i < cred->num_domain; i++) {
3164                         ret = os_snprintf(pos, end - pos, "%s%s",
3165                                           i > 0 ? "\n" : "", cred->domain[i]);
3166                         if (os_snprintf_error(end - pos, ret))
3167                                 return buf;
3168                         pos += ret;
3169                 }
3170
3171                 return buf;
3172         }
3173
3174         if (os_strcmp(var, "phase1") == 0)
3175                 return alloc_strdup(cred->phase1);
3176
3177         if (os_strcmp(var, "phase2") == 0)
3178                 return alloc_strdup(cred->phase2);
3179
3180         if (os_strcmp(var, "roaming_consortium") == 0) {
3181                 size_t buflen;
3182                 char *buf;
3183
3184                 if (!cred->roaming_consortium_len)
3185                         return NULL;
3186                 buflen = cred->roaming_consortium_len * 2 + 1;
3187                 buf = os_malloc(buflen);
3188                 if (buf == NULL)
3189                         return NULL;
3190                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3191                                  cred->roaming_consortium_len);
3192                 return buf;
3193         }
3194
3195         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3196                 size_t buflen;
3197                 char *buf;
3198
3199                 if (!cred->required_roaming_consortium_len)
3200                         return NULL;
3201                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3202                 buf = os_malloc(buflen);
3203                 if (buf == NULL)
3204                         return NULL;
3205                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3206                                  cred->required_roaming_consortium_len);
3207                 return buf;
3208         }
3209
3210         if (os_strcmp(var, "excluded_ssid") == 0) {
3211                 unsigned int i;
3212                 char *buf, *end, *pos;
3213
3214                 if (!cred->num_excluded_ssid)
3215                         return NULL;
3216
3217                 buf = os_malloc(4000);
3218                 if (buf == NULL)
3219                         return NULL;
3220                 pos = buf;
3221                 end = pos + 4000;
3222
3223                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3224                         struct excluded_ssid *e;
3225                         int ret;
3226
3227                         e = &cred->excluded_ssid[i];
3228                         ret = os_snprintf(pos, end - pos, "%s%s",
3229                                           i > 0 ? "\n" : "",
3230                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3231                         if (os_snprintf_error(end - pos, ret))
3232                                 return buf;
3233                         pos += ret;
3234                 }
3235
3236                 return buf;
3237         }
3238
3239         if (os_strcmp(var, "roaming_partner") == 0) {
3240                 unsigned int i;
3241                 char *buf, *end, *pos;
3242
3243                 if (!cred->num_roaming_partner)
3244                         return NULL;
3245
3246                 buf = os_malloc(4000);
3247                 if (buf == NULL)
3248                         return NULL;
3249                 pos = buf;
3250                 end = pos + 4000;
3251
3252                 for (i = 0; i < cred->num_roaming_partner; i++) {
3253                         struct roaming_partner *p;
3254                         int ret;
3255
3256                         p = &cred->roaming_partner[i];
3257                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3258                                           i > 0 ? "\n" : "",
3259                                           p->fqdn, p->exact_match, p->priority,
3260                                           p->country);
3261                         if (os_snprintf_error(end - pos, ret))
3262                                 return buf;
3263                         pos += ret;
3264                 }
3265
3266                 return buf;
3267         }
3268
3269         if (os_strcmp(var, "provisioning_sp") == 0)
3270                 return alloc_strdup(cred->provisioning_sp);
3271
3272         return NULL;
3273 }
3274
3275
3276 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3277 {
3278         struct wpa_cred *cred;
3279
3280         cred = config->cred;
3281         while (cred) {
3282                 if (id == cred->id)
3283                         break;
3284                 cred = cred->next;
3285         }
3286
3287         return cred;
3288 }
3289
3290
3291 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3292 {
3293         int id;
3294         struct wpa_cred *cred, *last = NULL;
3295
3296         id = -1;
3297         cred = config->cred;
3298         while (cred) {
3299                 if (cred->id > id)
3300                         id = cred->id;
3301                 last = cred;
3302                 cred = cred->next;
3303         }
3304         id++;
3305
3306         cred = os_zalloc(sizeof(*cred));
3307         if (cred == NULL)
3308                 return NULL;
3309         cred->id = id;
3310         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3311         if (last)
3312                 last->next = cred;
3313         else
3314                 config->cred = cred;
3315
3316         return cred;
3317 }
3318
3319
3320 int wpa_config_remove_cred(struct wpa_config *config, int id)
3321 {
3322         struct wpa_cred *cred, *prev = NULL;
3323
3324         cred = config->cred;
3325         while (cred) {
3326                 if (id == cred->id)
3327                         break;
3328                 prev = cred;
3329                 cred = cred->next;
3330         }
3331
3332         if (cred == NULL)
3333                 return -1;
3334
3335         if (prev)
3336                 prev->next = cred->next;
3337         else
3338                 config->cred = cred->next;
3339
3340         wpa_config_free_cred(cred);
3341         return 0;
3342 }
3343
3344
3345 #ifndef CONFIG_NO_CONFIG_BLOBS
3346 /**
3347  * wpa_config_get_blob - Get a named configuration blob
3348  * @config: Configuration data from wpa_config_read()
3349  * @name: Name of the blob
3350  * Returns: Pointer to blob data or %NULL if not found
3351  */
3352 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3353                                                    const char *name)
3354 {
3355         struct wpa_config_blob *blob = config->blobs;
3356
3357         while (blob) {
3358                 if (os_strcmp(blob->name, name) == 0)
3359                         return blob;
3360                 blob = blob->next;
3361         }
3362         return NULL;
3363 }
3364
3365
3366 /**
3367  * wpa_config_set_blob - Set or add a named configuration blob
3368  * @config: Configuration data from wpa_config_read()
3369  * @blob: New value for the blob
3370  *
3371  * Adds a new configuration blob or replaces the current value of an existing
3372  * blob.
3373  */
3374 void wpa_config_set_blob(struct wpa_config *config,
3375                          struct wpa_config_blob *blob)
3376 {
3377         wpa_config_remove_blob(config, blob->name);
3378         blob->next = config->blobs;
3379         config->blobs = blob;
3380 }
3381
3382
3383 /**
3384  * wpa_config_free_blob - Free blob data
3385  * @blob: Pointer to blob to be freed
3386  */
3387 void wpa_config_free_blob(struct wpa_config_blob *blob)
3388 {
3389         if (blob) {
3390                 os_free(blob->name);
3391                 bin_clear_free(blob->data, blob->len);
3392                 os_free(blob);
3393         }
3394 }
3395
3396
3397 /**
3398  * wpa_config_remove_blob - Remove a named configuration blob
3399  * @config: Configuration data from wpa_config_read()
3400  * @name: Name of the blob to remove
3401  * Returns: 0 if blob was removed or -1 if blob was not found
3402  */
3403 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3404 {
3405         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3406
3407         while (pos) {
3408                 if (os_strcmp(pos->name, name) == 0) {
3409                         if (prev)
3410                                 prev->next = pos->next;
3411                         else
3412                                 config->blobs = pos->next;
3413                         wpa_config_free_blob(pos);
3414                         return 0;
3415                 }
3416                 prev = pos;
3417                 pos = pos->next;
3418         }
3419
3420         return -1;
3421 }
3422 #endif /* CONFIG_NO_CONFIG_BLOBS */
3423
3424
3425 /**
3426  * wpa_config_alloc_empty - Allocate an empty configuration
3427  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3428  * socket
3429  * @driver_param: Driver parameters
3430  * Returns: Pointer to allocated configuration data or %NULL on failure
3431  */
3432 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3433                                            const char *driver_param)
3434 {
3435         struct wpa_config *config;
3436         const int aCWmin = 4, aCWmax = 10;
3437         const struct hostapd_wmm_ac_params ac_bk =
3438                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3439         const struct hostapd_wmm_ac_params ac_be =
3440                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3441         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3442                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3443         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3444                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3445
3446         config = os_zalloc(sizeof(*config));
3447         if (config == NULL)
3448                 return NULL;
3449         config->eapol_version = DEFAULT_EAPOL_VERSION;
3450         config->ap_scan = DEFAULT_AP_SCAN;
3451         config->user_mpm = DEFAULT_USER_MPM;
3452         config->max_peer_links = DEFAULT_MAX_PEER_LINKS;
3453         config->fast_reauth = DEFAULT_FAST_REAUTH;
3454         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3455         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3456         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3457         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3458         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3459         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3460         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3461         config->max_num_sta = DEFAULT_MAX_NUM_STA;
3462         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3463         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3464         config->wmm_ac_params[0] = ac_be;
3465         config->wmm_ac_params[1] = ac_bk;
3466         config->wmm_ac_params[2] = ac_vi;
3467         config->wmm_ac_params[3] = ac_vo;
3468         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3469         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3470         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3471
3472         if (ctrl_interface)
3473                 config->ctrl_interface = os_strdup(ctrl_interface);
3474         if (driver_param)
3475                 config->driver_param = os_strdup(driver_param);
3476
3477         return config;
3478 }
3479
3480
3481 #ifndef CONFIG_NO_STDOUT_DEBUG
3482 /**
3483  * wpa_config_debug_dump_networks - Debug dump of configured networks
3484  * @config: Configuration data from wpa_config_read()
3485  */
3486 void wpa_config_debug_dump_networks(struct wpa_config *config)
3487 {
3488         int prio;
3489         struct wpa_ssid *ssid;
3490
3491         for (prio = 0; prio < config->num_prio; prio++) {
3492                 ssid = config->pssid[prio];
3493                 wpa_printf(MSG_DEBUG, "Priority group %d",
3494                            ssid->priority);
3495                 while (ssid) {
3496                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3497                                    ssid->id,
3498                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3499                         ssid = ssid->pnext;
3500                 }
3501         }
3502 }
3503 #endif /* CONFIG_NO_STDOUT_DEBUG */
3504
3505
3506 struct global_parse_data {
3507         char *name;
3508         int (*parser)(const struct global_parse_data *data,
3509                       struct wpa_config *config, int line, const char *value);
3510         void *param1, *param2, *param3;
3511         unsigned int changed_flag;
3512 };
3513
3514
3515 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3516                                        struct wpa_config *config, int line,
3517                                        const char *pos)
3518 {
3519         int val, *dst;
3520         char *end;
3521
3522         dst = (int *) (((u8 *) config) + (long) data->param1);
3523         val = strtol(pos, &end, 0);
3524         if (*end) {
3525                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3526                            line, pos);
3527                 return -1;
3528         }
3529         *dst = val;
3530
3531         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3532
3533         if (data->param2 && *dst < (long) data->param2) {
3534                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3535                            "min_value=%ld)", line, data->name, *dst,
3536                            (long) data->param2);
3537                 *dst = (long) data->param2;
3538                 return -1;
3539         }
3540
3541         if (data->param3 && *dst > (long) data->param3) {
3542                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3543                            "max_value=%ld)", line, data->name, *dst,
3544                            (long) data->param3);
3545                 *dst = (long) data->param3;
3546                 return -1;
3547         }
3548
3549         return 0;
3550 }
3551
3552
3553 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3554                                        struct wpa_config *config, int line,
3555                                        const char *pos)
3556 {
3557         size_t len;
3558         char **dst, *tmp;
3559
3560         len = os_strlen(pos);
3561         if (data->param2 && len < (size_t) data->param2) {
3562                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3563                            "min_len=%ld)", line, data->name,
3564                            (unsigned long) len, (long) data->param2);
3565                 return -1;
3566         }
3567
3568         if (data->param3 && len > (size_t) data->param3) {
3569                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3570                            "max_len=%ld)", line, data->name,
3571                            (unsigned long) len, (long) data->param3);
3572                 return -1;
3573         }
3574
3575         tmp = os_strdup(pos);
3576         if (tmp == NULL)
3577                 return -1;
3578
3579         dst = (char **) (((u8 *) config) + (long) data->param1);
3580         os_free(*dst);
3581         *dst = tmp;
3582         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3583
3584         return 0;
3585 }
3586
3587
3588 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3589                                      struct wpa_config *config, int line,
3590                                      const char *pos)
3591 {
3592         size_t len;
3593         char *tmp;
3594         int res;
3595
3596         tmp = wpa_config_parse_string(pos, &len);
3597         if (tmp == NULL) {
3598                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3599                            line, data->name);
3600                 return -1;
3601         }
3602
3603         res = wpa_global_config_parse_str(data, config, line, tmp);
3604         os_free(tmp);
3605         return res;
3606 }
3607
3608
3609 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3610                                        struct wpa_config *config, int line,
3611                                        const char *pos)
3612 {
3613         size_t len;
3614         struct wpabuf **dst, *tmp;
3615
3616         len = os_strlen(pos);
3617         if (len & 0x01)
3618                 return -1;
3619
3620         tmp = wpabuf_alloc(len / 2);
3621         if (tmp == NULL)
3622                 return -1;
3623
3624         if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3625                 wpabuf_free(tmp);
3626                 return -1;
3627         }
3628
3629         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3630         wpabuf_free(*dst);
3631         *dst = tmp;
3632         wpa_printf(MSG_DEBUG, "%s", data->name);
3633
3634         return 0;
3635 }
3636
3637
3638 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3639                                         struct wpa_config *config, int line,
3640                                         const char *value)
3641 {
3642         int *freqs;
3643
3644         freqs = wpa_config_parse_int_array(value);
3645         if (freqs == NULL)
3646                 return -1;
3647         if (freqs[0] == 0) {
3648                 os_free(freqs);
3649                 freqs = NULL;
3650         }
3651         os_free(config->freq_list);
3652         config->freq_list = freqs;
3653         return 0;
3654 }
3655
3656
3657 #ifdef CONFIG_P2P
3658 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3659                                         struct wpa_config *config, int line,
3660                                         const char *pos)
3661 {
3662         u32 *dst;
3663         struct hostapd_ip_addr addr;
3664
3665         if (hostapd_parse_ip_addr(pos, &addr) < 0)
3666                 return -1;
3667         if (addr.af != AF_INET)
3668                 return -1;
3669
3670         dst = (u32 *) (((u8 *) config) + (long) data->param1);
3671         os_memcpy(dst, &addr.u.v4.s_addr, 4);
3672         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3673                    WPA_GET_BE32((u8 *) dst));
3674
3675         return 0;
3676 }
3677 #endif /* CONFIG_P2P */
3678
3679
3680 static int wpa_config_process_country(const struct global_parse_data *data,
3681                                       struct wpa_config *config, int line,
3682                                       const char *pos)
3683 {
3684         if (!pos[0] || !pos[1]) {
3685                 wpa_printf(MSG_DEBUG, "Invalid country set");
3686                 return -1;
3687         }
3688         config->country[0] = pos[0];
3689         config->country[1] = pos[1];
3690         wpa_printf(MSG_DEBUG, "country='%c%c'",
3691                    config->country[0], config->country[1]);
3692         return 0;
3693 }
3694
3695
3696 static int wpa_config_process_load_dynamic_eap(
3697         const struct global_parse_data *data, struct wpa_config *config,
3698         int line, const char *so)
3699 {
3700         int ret;
3701         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3702         ret = eap_peer_method_load(so);
3703         if (ret == -2) {
3704                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3705                            "reloading.");
3706         } else if (ret) {
3707                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3708                            "method '%s'.", line, so);
3709                 return -1;
3710         }
3711
3712         return 0;
3713 }
3714
3715
3716 #ifdef CONFIG_WPS
3717
3718 static int wpa_config_process_uuid(const struct global_parse_data *data,
3719                                    struct wpa_config *config, int line,
3720                                    const char *pos)
3721 {
3722         char buf[40];
3723         if (uuid_str2bin(pos, config->uuid)) {
3724                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3725                 return -1;
3726         }
3727         uuid_bin2str(config->uuid, buf, sizeof(buf));
3728         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3729         return 0;
3730 }
3731
3732
3733 static int wpa_config_process_device_type(
3734         const struct global_parse_data *data,
3735         struct wpa_config *config, int line, const char *pos)
3736 {
3737         return wps_dev_type_str2bin(pos, config->device_type);
3738 }
3739
3740
3741 static int wpa_config_process_os_version(const struct global_parse_data *data,
3742                                          struct wpa_config *config, int line,
3743                                          const char *pos)
3744 {
3745         if (hexstr2bin(pos, config->os_version, 4)) {
3746                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3747                 return -1;
3748         }
3749         wpa_printf(MSG_DEBUG, "os_version=%08x",
3750                    WPA_GET_BE32(config->os_version));
3751         return 0;
3752 }
3753
3754
3755 static int wpa_config_process_wps_vendor_ext_m1(
3756         const struct global_parse_data *data,
3757         struct wpa_config *config, int line, const char *pos)
3758 {
3759         struct wpabuf *tmp;
3760         int len = os_strlen(pos) / 2;
3761         u8 *p;
3762
3763         if (!len) {
3764                 wpa_printf(MSG_ERROR, "Line %d: "
3765                            "invalid wps_vendor_ext_m1", line);
3766                 return -1;
3767         }
3768
3769         tmp = wpabuf_alloc(len);
3770         if (tmp) {
3771                 p = wpabuf_put(tmp, len);
3772
3773                 if (hexstr2bin(pos, p, len)) {
3774                         wpa_printf(MSG_ERROR, "Line %d: "
3775                                    "invalid wps_vendor_ext_m1", line);
3776                         wpabuf_free(tmp);
3777                         return -1;
3778                 }
3779
3780                 wpabuf_free(config->wps_vendor_ext_m1);
3781                 config->wps_vendor_ext_m1 = tmp;
3782         } else {
3783                 wpa_printf(MSG_ERROR, "Can not allocate "
3784                            "memory for wps_vendor_ext_m1");
3785                 return -1;
3786         }
3787
3788         return 0;
3789 }
3790
3791 #endif /* CONFIG_WPS */
3792
3793 #ifdef CONFIG_P2P
3794 static int wpa_config_process_sec_device_type(
3795         const struct global_parse_data *data,
3796         struct wpa_config *config, int line, const char *pos)
3797 {
3798         int idx;
3799
3800         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3801                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3802                            "items", line);
3803                 return -1;
3804         }
3805
3806         idx = config->num_sec_device_types;
3807
3808         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3809                 return -1;
3810
3811         config->num_sec_device_types++;
3812         return 0;
3813 }
3814
3815
3816 static int wpa_config_process_p2p_pref_chan(
3817         const struct global_parse_data *data,
3818         struct wpa_config *config, int line, const char *pos)
3819 {
3820         struct p2p_channel *pref = NULL, *n;
3821         unsigned int num = 0;
3822         const char *pos2;
3823         u8 op_class, chan;
3824
3825         /* format: class:chan,class:chan,... */
3826
3827         while (*pos) {
3828                 op_class = atoi(pos);
3829                 pos2 = os_strchr(pos, ':');
3830                 if (pos2 == NULL)
3831                         goto fail;
3832                 pos2++;
3833                 chan = atoi(pos2);
3834
3835                 n = os_realloc_array(pref, num + 1,
3836                                      sizeof(struct p2p_channel));
3837                 if (n == NULL)
3838                         goto fail;
3839                 pref = n;
3840                 pref[num].op_class = op_class;
3841                 pref[num].chan = chan;
3842                 num++;
3843
3844                 pos = os_strchr(pos2, ',');
3845                 if (pos == NULL)
3846                         break;
3847                 pos++;
3848         }
3849
3850         os_free(config->p2p_pref_chan);
3851         config->p2p_pref_chan = pref;
3852         config->num_p2p_pref_chan = num;
3853         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3854                     (u8 *) config->p2p_pref_chan,
3855                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3856
3857         return 0;
3858
3859 fail:
3860         os_free(pref);
3861         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3862         return -1;
3863 }
3864
3865
3866 static int wpa_config_process_p2p_no_go_freq(
3867         const struct global_parse_data *data,
3868         struct wpa_config *config, int line, const char *pos)
3869 {
3870         int ret;
3871
3872         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3873         if (ret < 0) {
3874                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3875                 return -1;
3876         }
3877
3878         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3879                    config->p2p_no_go_freq.num);
3880
3881         return 0;
3882 }
3883
3884 #endif /* CONFIG_P2P */
3885
3886
3887 static int wpa_config_process_hessid(
3888         const struct global_parse_data *data,
3889         struct wpa_config *config, int line, const char *pos)
3890 {
3891         if (hwaddr_aton2(pos, config->hessid) < 0) {
3892                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3893                            line, pos);
3894                 return -1;
3895         }
3896
3897         return 0;
3898 }
3899
3900
3901 static int wpa_config_process_sae_groups(
3902         const struct global_parse_data *data,
3903         struct wpa_config *config, int line, const char *pos)
3904 {
3905         int *groups = wpa_config_parse_int_array(pos);
3906         if (groups == NULL) {
3907                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3908                            line, pos);
3909                 return -1;
3910         }
3911
3912         os_free(config->sae_groups);
3913         config->sae_groups = groups;
3914
3915         return 0;
3916 }
3917
3918
3919 static int wpa_config_process_ap_vendor_elements(
3920         const struct global_parse_data *data,
3921         struct wpa_config *config, int line, const char *pos)
3922 {
3923         struct wpabuf *tmp;
3924         int len = os_strlen(pos) / 2;
3925         u8 *p;
3926
3927         if (!len) {
3928                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3929                            line);
3930                 return -1;
3931         }
3932
3933         tmp = wpabuf_alloc(len);
3934         if (tmp) {
3935                 p = wpabuf_put(tmp, len);
3936
3937                 if (hexstr2bin(pos, p, len)) {
3938                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3939                                    "ap_vendor_elements", line);
3940                         wpabuf_free(tmp);
3941                         return -1;
3942                 }
3943
3944                 wpabuf_free(config->ap_vendor_elements);
3945                 config->ap_vendor_elements = tmp;
3946         } else {
3947                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
3948                            "ap_vendor_elements");
3949                 return -1;
3950         }
3951
3952         return 0;
3953 }
3954
3955
3956 #ifdef CONFIG_CTRL_IFACE
3957 static int wpa_config_process_no_ctrl_interface(
3958         const struct global_parse_data *data,
3959         struct wpa_config *config, int line, const char *pos)
3960 {
3961         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
3962         os_free(config->ctrl_interface);
3963         config->ctrl_interface = NULL;
3964         return 0;
3965 }
3966 #endif /* CONFIG_CTRL_IFACE */
3967
3968
3969 #ifdef OFFSET
3970 #undef OFFSET
3971 #endif /* OFFSET */
3972 /* OFFSET: Get offset of a variable within the wpa_config structure */
3973 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
3974
3975 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
3976 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
3977 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
3978 #define INT(f) _INT(f), NULL, NULL
3979 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
3980 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
3981 #define STR(f) _STR(f), NULL, NULL
3982 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
3983 #define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
3984 #define IPV4(f) #f, wpa_global_config_parse_ipv4, OFFSET(f), NULL, NULL
3985
3986 static const struct global_parse_data global_fields[] = {
3987 #ifdef CONFIG_CTRL_IFACE
3988         { STR(ctrl_interface), 0 },
3989         { FUNC_NO_VAR(no_ctrl_interface), 0 },
3990         { STR(ctrl_interface_group), 0 } /* deprecated */,
3991 #endif /* CONFIG_CTRL_IFACE */
3992 #ifdef CONFIG_MACSEC
3993         { INT_RANGE(eapol_version, 1, 3), 0 },
3994 #else /* CONFIG_MACSEC */
3995         { INT_RANGE(eapol_version, 1, 2), 0 },
3996 #endif /* CONFIG_MACSEC */
3997         { INT(ap_scan), 0 },
3998         { FUNC(bgscan), 0 },
3999 #ifdef CONFIG_MESH
4000         { INT(user_mpm), 0 },
4001         { INT_RANGE(max_peer_links, 0, 255), 0 },
4002 #endif /* CONFIG_MESH */
4003         { INT(disable_scan_offload), 0 },
4004         { INT(fast_reauth), 0 },
4005         { STR(opensc_engine_path), 0 },
4006         { STR(pkcs11_engine_path), 0 },
4007         { STR(pkcs11_module_path), 0 },
4008         { STR(openssl_ciphers), 0 },
4009         { STR(pcsc_reader), 0 },
4010         { STR(pcsc_pin), 0 },
4011         { INT(external_sim), 0 },
4012         { STR(driver_param), 0 },
4013         { INT(dot11RSNAConfigPMKLifetime), 0 },
4014         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4015         { INT(dot11RSNAConfigSATimeout), 0 },
4016 #ifndef CONFIG_NO_CONFIG_WRITE
4017         { INT(update_config), 0 },
4018 #endif /* CONFIG_NO_CONFIG_WRITE */
4019         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4020 #ifdef CONFIG_WPS
4021         { FUNC(uuid), CFG_CHANGED_UUID },
4022         { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
4023         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4024         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4025         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4026         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4027         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4028         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4029         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4030         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4031         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4032 #endif /* CONFIG_WPS */
4033 #ifdef CONFIG_P2P
4034         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4035         { INT(p2p_listen_reg_class), 0 },
4036         { INT(p2p_listen_channel), 0 },
4037         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4038         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4039         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4040         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4041         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4042         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4043         { INT(p2p_group_idle), 0 },
4044         { INT_RANGE(p2p_passphrase_len, 8, 63),
4045           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4046         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4047         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4048         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4049         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4050         { INT(p2p_go_ht40), 0 },
4051         { INT(p2p_go_vht), 0 },
4052         { INT(p2p_disabled), 0 },
4053         { INT(p2p_no_group_iface), 0 },
4054         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4055         { IPV4(ip_addr_go), 0 },
4056         { IPV4(ip_addr_mask), 0 },
4057         { IPV4(ip_addr_start), 0 },
4058         { IPV4(ip_addr_end), 0 },
4059 #endif /* CONFIG_P2P */
4060         { FUNC(country), CFG_CHANGED_COUNTRY },
4061         { INT(bss_max_count), 0 },
4062         { INT(bss_expiration_age), 0 },
4063         { INT(bss_expiration_scan_count), 0 },
4064         { INT_RANGE(filter_ssids, 0, 1), 0 },
4065         { INT_RANGE(filter_rssi, -100, 0), 0 },
4066         { INT(max_num_sta), 0 },
4067         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4068 #ifdef CONFIG_HS20
4069         { INT_RANGE(hs20, 0, 1), 0 },
4070 #endif /* CONFIG_HS20 */
4071         { INT_RANGE(interworking, 0, 1), 0 },
4072         { FUNC(hessid), 0 },
4073         { INT_RANGE(access_network_type, 0, 15), 0 },
4074         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4075         { STR(autoscan), 0 },
4076         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4077           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4078         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4079         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4080         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4081         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4082         { INT(p2p_go_max_inactivity), 0 },
4083         { INT_RANGE(auto_interworking, 0, 1), 0 },
4084         { INT(okc), 0 },
4085         { INT(pmf), 0 },
4086         { FUNC(sae_groups), 0 },
4087         { INT(dtim_period), 0 },
4088         { INT(beacon_int), 0 },
4089         { FUNC(ap_vendor_elements), 0 },
4090         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4091         { FUNC(freq_list), 0 },
4092         { INT(scan_cur_freq), 0 },
4093         { INT(sched_scan_interval), 0 },
4094         { INT(tdls_external_control), 0},
4095         { STR(osu_dir), 0 },
4096         { STR(wowlan_triggers), 0 },
4097         { INT(p2p_search_delay), 0},
4098         { INT(mac_addr), 0 },
4099         { INT(rand_addr_lifetime), 0 },
4100         { INT(preassoc_mac_addr), 0 },
4101         { INT(key_mgmt_offload), 0},
4102 };
4103
4104 #undef FUNC
4105 #undef _INT
4106 #undef INT
4107 #undef INT_RANGE
4108 #undef _STR
4109 #undef STR
4110 #undef STR_RANGE
4111 #undef BIN
4112 #undef IPV4
4113 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4114
4115
4116 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4117 {
4118         size_t i;
4119         int ret = 0;
4120
4121         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4122                 const struct global_parse_data *field = &global_fields[i];
4123                 size_t flen = os_strlen(field->name);
4124                 if (os_strncmp(pos, field->name, flen) != 0 ||
4125                     pos[flen] != '=')
4126                         continue;
4127
4128                 if (field->parser(field, config, line, pos + flen + 1)) {
4129                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4130                                    "parse '%s'.", line, pos);
4131                         ret = -1;
4132                 }
4133                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4134                         config->wps_nfc_pw_from_config = 1;
4135                 config->changed_parameters |= field->changed_flag;
4136                 break;
4137         }
4138         if (i == NUM_GLOBAL_FIELDS) {
4139 #ifdef CONFIG_AP
4140                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4141                         char *tmp = os_strchr(pos, '=');
4142                         if (tmp == NULL) {
4143                                 if (line < 0)
4144                                         return -1;
4145                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4146                                            "'%s'", line, pos);
4147                                 return -1;
4148                         }
4149                         *tmp++ = '\0';
4150                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4151                                                   tmp)) {
4152                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4153                                            "AC item", line);
4154                                 return -1;
4155                         }
4156                 }
4157 #endif /* CONFIG_AP */
4158                 if (line < 0)
4159                         return -1;
4160                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4161                            line, pos);
4162                 ret = -1;
4163         }
4164
4165         return ret;
4166 }