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