wpa_supplicant/config.c

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