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