wpa_supplicant/config.c

   1 /*
   2  * WPA Supplicant / Configuration parser and common functions
   3  * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  */
   8
   9 #include "includes.h"
  10
  11 #include "common.h"
  12 #include "utils/uuid.h"
  13 #include "utils/ip_addr.h"
  14 #include "crypto/sha1.h"
  15 #include "rsn_supp/wpa.h"
  16 #include "eap_peer/eap.h"
  17 #include "p2p/p2p.h"
  18 #include "config.h"
  19
  20
  21 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
  22 #define NO_CONFIG_WRITE
  23 #endif
  24
  25 /*
  26  * Structure for network configuration parsing. This data is used to implement
  27  * a generic parser for each network block variable. The table of configuration
  28  * variables is defined below in this file (ssid_fields[]).
  29  */
  30 struct parse_data {
  31         /* Configuration variable name */
  32         char *name;
  33
  34         /* Parser function for this variable */
  35         int (*parser)(const struct parse_data *data, struct wpa_ssid *ssid,
  36                       int line, const char *value);
  37
  38 #ifndef NO_CONFIG_WRITE
  39         /* Writer function (i.e., to get the variable in text format from
  40          * internal presentation). */
  41         char * (*writer)(const struct parse_data *data, struct wpa_ssid *ssid);
  42 #endif /* NO_CONFIG_WRITE */
  43
  44         /* Variable specific parameters for the parser. */
  45         void *param1, *param2, *param3, *param4;
  46
  47         /* 0 = this variable can be included in debug output and ctrl_iface
  48          * 1 = this variable contains key/private data and it must not be
  49          *     included in debug output unless explicitly requested. In
  50          *     addition, this variable will not be readable through the
  51          *     ctrl_iface.
  52          */
  53         int key_data;
  54 };
  55
  56
  57 static int wpa_config_parse_str(const struct parse_data *data,
  58                                 struct wpa_ssid *ssid,
  59                                 int line, const char *value)
  60 {
  61         size_t res_len, *dst_len;
  62         char **dst, *tmp;
  63
  64         if (os_strcmp(value, "NULL") == 0) {
  65                 wpa_printf(MSG_DEBUG, "Unset configuration string '%s'",
  66                            data->name);
  67                 tmp = NULL;
  68                 res_len = 0;
  69                 goto set;
  70         }
  71
  72         tmp = wpa_config_parse_string(value, &res_len);
  73         if (tmp == NULL) {
  74                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s '%s'.",
  75                            line, data->name,
  76                            data->key_data ? "[KEY DATA REMOVED]" : value);
  77                 return -1;
  78         }
  79
  80         if (data->key_data) {
  81                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
  82                                       (u8 *) tmp, res_len);
  83         } else {
  84                 wpa_hexdump_ascii(MSG_MSGDUMP, data->name,
  85                                   (u8 *) tmp, res_len);
  86         }
  87
  88         if (data->param3 && res_len < (size_t) data->param3) {
  89                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
  90                            "min_len=%ld)", line, data->name,
  91                            (unsigned long) res_len, (long) data->param3);
  92                 os_free(tmp);
  93                 return -1;
  94         }
  95
  96         if (data->param4 && res_len > (size_t) data->param4) {
  97                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
  98                            "max_len=%ld)", line, data->name,
  99                            (unsigned long) res_len, (long) data->param4);
 100                 os_free(tmp);
 101                 return -1;
 102         }
 103
 104 set:
 105         dst = (char **) (((u8 *) ssid) + (long) data->param1);
 106         dst_len = (size_t *) (((u8 *) ssid) + (long) data->param2);
 107         os_free(*dst);
 108         *dst = tmp;
 109         if (data->param2)
 110                 *dst_len = res_len;
 111
 112         return 0;
 113 }
 114
 115
 116 #ifndef NO_CONFIG_WRITE
 117 static char * wpa_config_write_string_ascii(const u8 *value, size_t len)
 118 {
 119         char *buf;
 120
 121         buf = os_malloc(len + 3);
 122         if (buf == NULL)
 123                 return NULL;
 124         buf[0] = '"';
 125         os_memcpy(buf + 1, value, len);
 126         buf[len + 1] = '"';
 127         buf[len + 2] = '\0';
 128
 129         return buf;
 130 }
 131
 132
 133 static char * wpa_config_write_string_hex(const u8 *value, size_t len)
 134 {
 135         char *buf;
 136
 137         buf = os_zalloc(2 * len + 1);
 138         if (buf == NULL)
 139                 return NULL;
 140         wpa_snprintf_hex(buf, 2 * len + 1, value, len);
 141
 142         return buf;
 143 }
 144
 145
 146 static char * wpa_config_write_string(const u8 *value, size_t len)
 147 {
 148         if (value == NULL)
 149                 return NULL;
 150
 151         if (is_hex(value, len))
 152                 return wpa_config_write_string_hex(value, len);
 153         else
 154                 return wpa_config_write_string_ascii(value, len);
 155 }
 156
 157
 158 static char * wpa_config_write_str(const struct parse_data *data,
 159                                    struct wpa_ssid *ssid)
 160 {
 161         size_t len;
 162         char **src;
 163
 164         src = (char **) (((u8 *) ssid) + (long) data->param1);
 165         if (*src == NULL)
 166                 return NULL;
 167
 168         if (data->param2)
 169                 len = *((size_t *) (((u8 *) ssid) + (long) data->param2));
 170         else
 171                 len = os_strlen(*src);
 172
 173         return wpa_config_write_string((const u8 *) *src, len);
 174 }
 175 #endif /* NO_CONFIG_WRITE */
 176
 177
 178 static int wpa_config_parse_int(const struct parse_data *data,
 179                                 struct wpa_ssid *ssid,
 180                                 int line, const char *value)
 181 {
 182         int val, *dst;
 183         char *end;
 184
 185         dst = (int *) (((u8 *) ssid) + (long) data->param1);
 186         val = strtol(value, &end, 0);
 187         if (*end) {
 188                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
 189                            line, value);
 190                 return -1;
 191         }
 192         *dst = val;
 193         wpa_printf(MSG_MSGDUMP, "%s=%d (0x%x)", data->name, *dst, *dst);
 194
 195         if (data->param3 && *dst < (long) data->param3) {
 196                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
 197                            "min_value=%ld)", line, data->name, *dst,
 198                            (long) data->param3);
 199                 *dst = (long) data->param3;
 200                 return -1;
 201         }
 202
 203         if (data->param4 && *dst > (long) data->param4) {
 204                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
 205                            "max_value=%ld)", line, data->name, *dst,
 206                            (long) data->param4);
 207                 *dst = (long) data->param4;
 208                 return -1;
 209         }
 210
 211         return 0;
 212 }
 213
 214
 215 #ifndef NO_CONFIG_WRITE
 216 static char * wpa_config_write_int(const struct parse_data *data,
 217                                    struct wpa_ssid *ssid)
 218 {
 219         int *src, res;
 220         char *value;
 221
 222         src = (int *) (((u8 *) ssid) + (long) data->param1);
 223
 224         value = os_malloc(20);
 225         if (value == NULL)
 226                 return NULL;
 227         res = os_snprintf(value, 20, "%d", *src);
 228         if (res < 0 || res >= 20) {
 229                 os_free(value);
 230                 return NULL;
 231         }
 232         value[20 - 1] = '\0';
 233         return value;
 234 }
 235 #endif /* NO_CONFIG_WRITE */
 236
 237
 238 static int wpa_config_parse_bssid(const struct parse_data *data,
 239                                   struct wpa_ssid *ssid, int line,
 240                                   const char *value)
 241 {
 242         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
 243             os_strcmp(value, "any") == 0) {
 244                 ssid->bssid_set = 0;
 245                 wpa_printf(MSG_MSGDUMP, "BSSID any");
 246                 return 0;
 247         }
 248         if (hwaddr_aton(value, ssid->bssid)) {
 249                 wpa_printf(MSG_ERROR, "Line %d: Invalid BSSID '%s'.",
 250                            line, value);
 251                 return -1;
 252         }
 253         ssid->bssid_set = 1;
 254         wpa_hexdump(MSG_MSGDUMP, "BSSID", ssid->bssid, ETH_ALEN);
 255         return 0;
 256 }
 257
 258
 259 #ifndef NO_CONFIG_WRITE
 260 static char * wpa_config_write_bssid(const struct parse_data *data,
 261                                      struct wpa_ssid *ssid)
 262 {
 263         char *value;
 264         int res;
 265
 266         if (!ssid->bssid_set)
 267                 return NULL;
 268
 269         value = os_malloc(20);
 270         if (value == NULL)
 271                 return NULL;
 272         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->bssid));
 273         if (res < 0 || res >= 20) {
 274                 os_free(value);
 275                 return NULL;
 276         }
 277         value[20 - 1] = '\0';
 278         return value;
 279 }
 280 #endif /* NO_CONFIG_WRITE */
 281
 282
 283 static int wpa_config_parse_psk(const struct parse_data *data,
 284                                 struct wpa_ssid *ssid, int line,
 285                                 const char *value)
 286 {
 287 #ifdef CONFIG_EXT_PASSWORD
 288         if (os_strncmp(value, "ext:", 4) == 0) {
 289                 str_clear_free(ssid->passphrase);
 290                 ssid->passphrase = NULL;
 291                 ssid->psk_set = 0;
 292                 os_free(ssid->ext_psk);
 293                 ssid->ext_psk = os_strdup(value + 4);
 294                 if (ssid->ext_psk == NULL)
 295                         return -1;
 296                 wpa_printf(MSG_DEBUG, "PSK: External password '%s'",
 297                            ssid->ext_psk);
 298                 return 0;
 299         }
 300 #endif /* CONFIG_EXT_PASSWORD */
 301
 302         if (*value == '"') {
 303 #ifndef CONFIG_NO_PBKDF2
 304                 const char *pos;
 305                 size_t len;
 306
 307                 value++;
 308                 pos = os_strrchr(value, '"');
 309                 if (pos)
 310                         len = pos - value;
 311                 else
 312                         len = os_strlen(value);
 313                 if (len < 8 || len > 63) {
 314                         wpa_printf(MSG_ERROR, "Line %d: Invalid passphrase "
 315                                    "length %lu (expected: 8..63) '%s'.",
 316                                    line, (unsigned long) len, value);
 317                         return -1;
 318                 }
 319                 wpa_hexdump_ascii_key(MSG_MSGDUMP, "PSK (ASCII passphrase)",
 320                                       (u8 *) value, len);
 321                 if (ssid->passphrase && os_strlen(ssid->passphrase) == len &&
 322                     os_memcmp(ssid->passphrase, value, len) == 0)
 323                         return 0;
 324                 ssid->psk_set = 0;
 325                 str_clear_free(ssid->passphrase);
 326                 ssid->passphrase = dup_binstr(value, len);
 327                 if (ssid->passphrase == NULL)
 328                         return -1;
 329                 return 0;
 330 #else /* CONFIG_NO_PBKDF2 */
 331                 wpa_printf(MSG_ERROR, "Line %d: ASCII passphrase not "
 332                            "supported.", line);
 333                 return -1;
 334 #endif /* CONFIG_NO_PBKDF2 */
 335         }
 336
 337         if (hexstr2bin(value, ssid->psk, PMK_LEN) ||
 338             value[PMK_LEN * 2] != '\0') {
 339                 wpa_printf(MSG_ERROR, "Line %d: Invalid PSK '%s'.",
 340                            line, value);
 341                 return -1;
 342         }
 343
 344         str_clear_free(ssid->passphrase);
 345         ssid->passphrase = NULL;
 346
 347         ssid->psk_set = 1;
 348         wpa_hexdump_key(MSG_MSGDUMP, "PSK", ssid->psk, PMK_LEN);
 349         return 0;
 350 }
 351
 352
 353 #ifndef NO_CONFIG_WRITE
 354 static char * wpa_config_write_psk(const struct parse_data *data,
 355                                    struct wpa_ssid *ssid)
 356 {
 357 #ifdef CONFIG_EXT_PASSWORD
 358         if (ssid->ext_psk) {
 359                 size_t len = 4 + os_strlen(ssid->ext_psk) + 1;
 360                 char *buf = os_malloc(len);
 361                 if (buf == NULL)
 362                         return NULL;
 363                 os_snprintf(buf, len, "ext:%s", ssid->ext_psk);
 364                 return buf;
 365         }
 366 #endif /* CONFIG_EXT_PASSWORD */
 367
 368         if (ssid->passphrase)
 369                 return wpa_config_write_string_ascii(
 370                         (const u8 *) ssid->passphrase,
 371                         os_strlen(ssid->passphrase));
 372
 373         if (ssid->psk_set)
 374                 return wpa_config_write_string_hex(ssid->psk, PMK_LEN);
 375
 376         return NULL;
 377 }
 378 #endif /* NO_CONFIG_WRITE */
 379
 380
 381 static int wpa_config_parse_proto(const struct parse_data *data,
 382                                   struct wpa_ssid *ssid, int line,
 383                                   const char *value)
 384 {
 385         int val = 0, last, errors = 0;
 386         char *start, *end, *buf;
 387
 388         buf = os_strdup(value);
 389         if (buf == NULL)
 390                 return -1;
 391         start = buf;
 392
 393         while (*start != '\0') {
 394                 while (*start == ' ' || *start == '\t')
 395                         start++;
 396                 if (*start == '\0')
 397                         break;
 398                 end = start;
 399                 while (*end != ' ' && *end != '\t' && *end != '\0')
 400                         end++;
 401                 last = *end == '\0';
 402                 *end = '\0';
 403                 if (os_strcmp(start, "WPA") == 0)
 404                         val |= WPA_PROTO_WPA;
 405                 else if (os_strcmp(start, "RSN") == 0 ||
 406                          os_strcmp(start, "WPA2") == 0)
 407                         val |= WPA_PROTO_RSN;
 408                 else if (os_strcmp(start, "OSEN") == 0)
 409                         val |= WPA_PROTO_OSEN;
 410                 else {
 411                         wpa_printf(MSG_ERROR, "Line %d: invalid proto '%s'",
 412                                    line, start);
 413                         errors++;
 414                 }
 415
 416                 if (last)
 417                         break;
 418                 start = end + 1;
 419         }
 420         os_free(buf);
 421
 422         if (val == 0) {
 423                 wpa_printf(MSG_ERROR,
 424                            "Line %d: no proto values configured.", line);
 425                 errors++;
 426         }
 427
 428         wpa_printf(MSG_MSGDUMP, "proto: 0x%x", val);
 429         ssid->proto = val;
 430         return errors ? -1 : 0;
 431 }
 432
 433
 434 #ifndef NO_CONFIG_WRITE
 435 static char * wpa_config_write_proto(const struct parse_data *data,
 436                                      struct wpa_ssid *ssid)
 437 {
 438         int ret;
 439         char *buf, *pos, *end;
 440
 441         pos = buf = os_zalloc(20);
 442         if (buf == NULL)
 443                 return NULL;
 444         end = buf + 20;
 445
 446         if (ssid->proto & WPA_PROTO_WPA) {
 447                 ret = os_snprintf(pos, end - pos, "%sWPA",
 448                                   pos == buf ? "" : " ");
 449                 if (ret < 0 || ret >= end - pos)
 450                         return buf;
 451                 pos += ret;
 452         }
 453
 454         if (ssid->proto & WPA_PROTO_RSN) {
 455                 ret = os_snprintf(pos, end - pos, "%sRSN",
 456                                   pos == buf ? "" : " ");
 457                 if (ret < 0 || ret >= end - pos)
 458                         return buf;
 459                 pos += ret;
 460         }
 461
 462         if (ssid->proto & WPA_PROTO_OSEN) {
 463                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 464                                   pos == buf ? "" : " ");
 465                 if (ret < 0 || ret >= end - pos)
 466                         return buf;
 467                 pos += ret;
 468         }
 469
 470         if (pos == buf) {
 471                 os_free(buf);
 472                 buf = NULL;
 473         }
 474
 475         return buf;
 476 }
 477 #endif /* NO_CONFIG_WRITE */
 478
 479
 480 static int wpa_config_parse_key_mgmt(const struct parse_data *data,
 481                                      struct wpa_ssid *ssid, int line,
 482                                      const char *value)
 483 {
 484         int val = 0, last, errors = 0;
 485         char *start, *end, *buf;
 486
 487         buf = os_strdup(value);
 488         if (buf == NULL)
 489                 return -1;
 490         start = buf;
 491
 492         while (*start != '\0') {
 493                 while (*start == ' ' || *start == '\t')
 494                         start++;
 495                 if (*start == '\0')
 496                         break;
 497                 end = start;
 498                 while (*end != ' ' && *end != '\t' && *end != '\0')
 499                         end++;
 500                 last = *end == '\0';
 501                 *end = '\0';
 502                 if (os_strcmp(start, "WPA-PSK") == 0)
 503                         val |= WPA_KEY_MGMT_PSK;
 504                 else if (os_strcmp(start, "WPA-EAP") == 0)
 505                         val |= WPA_KEY_MGMT_IEEE8021X;
 506                 else if (os_strcmp(start, "IEEE8021X") == 0)
 507                         val |= WPA_KEY_MGMT_IEEE8021X_NO_WPA;
 508                 else if (os_strcmp(start, "NONE") == 0)
 509                         val |= WPA_KEY_MGMT_NONE;
 510                 else if (os_strcmp(start, "WPA-NONE") == 0)
 511                         val |= WPA_KEY_MGMT_WPA_NONE;
 512 #ifdef CONFIG_IEEE80211R
 513                 else if (os_strcmp(start, "FT-PSK") == 0)
 514                         val |= WPA_KEY_MGMT_FT_PSK;
 515                 else if (os_strcmp(start, "FT-EAP") == 0)
 516                         val |= WPA_KEY_MGMT_FT_IEEE8021X;
 517 #endif /* CONFIG_IEEE80211R */
 518 #ifdef CONFIG_IEEE80211W
 519                 else if (os_strcmp(start, "WPA-PSK-SHA256") == 0)
 520                         val |= WPA_KEY_MGMT_PSK_SHA256;
 521                 else if (os_strcmp(start, "WPA-EAP-SHA256") == 0)
 522                         val |= WPA_KEY_MGMT_IEEE8021X_SHA256;
 523 #endif /* CONFIG_IEEE80211W */
 524 #ifdef CONFIG_WPS
 525                 else if (os_strcmp(start, "WPS") == 0)
 526                         val |= WPA_KEY_MGMT_WPS;
 527 #endif /* CONFIG_WPS */
 528 #ifdef CONFIG_SAE
 529                 else if (os_strcmp(start, "SAE") == 0)
 530                         val |= WPA_KEY_MGMT_SAE;
 531                 else if (os_strcmp(start, "FT-SAE") == 0)
 532                         val |= WPA_KEY_MGMT_FT_SAE;
 533 #endif /* CONFIG_SAE */
 534 #ifdef CONFIG_HS20
 535                 else if (os_strcmp(start, "OSEN") == 0)
 536                         val |= WPA_KEY_MGMT_OSEN;
 537 #endif /* CONFIG_HS20 */
 538                 else if (os_strcmp(start, "WPA-EAP-SUITE-B") == 0)
 539                         val |= WPA_KEY_MGMT_IEEE8021X_SUITE_B;
 540                 else {
 541                         wpa_printf(MSG_ERROR, "Line %d: invalid key_mgmt '%s'",
 542                                    line, start);
 543                         errors++;
 544                 }
 545
 546                 if (last)
 547                         break;
 548                 start = end + 1;
 549         }
 550         os_free(buf);
 551
 552         if (val == 0) {
 553                 wpa_printf(MSG_ERROR,
 554                            "Line %d: no key_mgmt values configured.", line);
 555                 errors++;
 556         }
 557
 558         wpa_printf(MSG_MSGDUMP, "key_mgmt: 0x%x", val);
 559         ssid->key_mgmt = val;
 560         return errors ? -1 : 0;
 561 }
 562
 563
 564 #ifndef NO_CONFIG_WRITE
 565 static char * wpa_config_write_key_mgmt(const struct parse_data *data,
 566                                         struct wpa_ssid *ssid)
 567 {
 568         char *buf, *pos, *end;
 569         int ret;
 570
 571         pos = buf = os_zalloc(100);
 572         if (buf == NULL)
 573                 return NULL;
 574         end = buf + 100;
 575
 576         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK) {
 577                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK",
 578                                   pos == buf ? "" : " ");
 579                 if (ret < 0 || ret >= end - pos) {
 580                         end[-1] = '\0';
 581                         return buf;
 582                 }
 583                 pos += ret;
 584         }
 585
 586         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X) {
 587                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP",
 588                                   pos == buf ? "" : " ");
 589                 if (ret < 0 || ret >= end - pos) {
 590                         end[-1] = '\0';
 591                         return buf;
 592                 }
 593                 pos += ret;
 594         }
 595
 596         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
 597                 ret = os_snprintf(pos, end - pos, "%sIEEE8021X",
 598                                   pos == buf ? "" : " ");
 599                 if (ret < 0 || ret >= end - pos) {
 600                         end[-1] = '\0';
 601                         return buf;
 602                 }
 603                 pos += ret;
 604         }
 605
 606         if (ssid->key_mgmt & WPA_KEY_MGMT_NONE) {
 607                 ret = os_snprintf(pos, end - pos, "%sNONE",
 608                                   pos == buf ? "" : " ");
 609                 if (ret < 0 || ret >= end - pos) {
 610                         end[-1] = '\0';
 611                         return buf;
 612                 }
 613                 pos += ret;
 614         }
 615
 616         if (ssid->key_mgmt & WPA_KEY_MGMT_WPA_NONE) {
 617                 ret = os_snprintf(pos, end - pos, "%sWPA-NONE",
 618                                   pos == buf ? "" : " ");
 619                 if (ret < 0 || ret >= end - pos) {
 620                         end[-1] = '\0';
 621                         return buf;
 622                 }
 623                 pos += ret;
 624         }
 625
 626 #ifdef CONFIG_IEEE80211R
 627         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_PSK) {
 628                 ret = os_snprintf(pos, end - pos, "%sFT-PSK",
 629                                   pos == buf ? "" : " ");
 630                 if (ret < 0 || ret >= end - pos) {
 631                         end[-1] = '\0';
 632                         return buf;
 633                 }
 634                 pos += ret;
 635         }
 636
 637         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_IEEE8021X) {
 638                 ret = os_snprintf(pos, end - pos, "%sFT-EAP",
 639                                   pos == buf ? "" : " ");
 640                 if (ret < 0 || ret >= end - pos) {
 641                         end[-1] = '\0';
 642                         return buf;
 643                 }
 644                 pos += ret;
 645         }
 646 #endif /* CONFIG_IEEE80211R */
 647
 648 #ifdef CONFIG_IEEE80211W
 649         if (ssid->key_mgmt & WPA_KEY_MGMT_PSK_SHA256) {
 650                 ret = os_snprintf(pos, end - pos, "%sWPA-PSK-SHA256",
 651                                   pos == buf ? "" : " ");
 652                 if (ret < 0 || ret >= end - pos) {
 653                         end[-1] = '\0';
 654                         return buf;
 655                 }
 656                 pos += ret;
 657         }
 658
 659         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SHA256) {
 660                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SHA256",
 661                                   pos == buf ? "" : " ");
 662                 if (ret < 0 || ret >= end - pos) {
 663                         end[-1] = '\0';
 664                         return buf;
 665                 }
 666                 pos += ret;
 667         }
 668 #endif /* CONFIG_IEEE80211W */
 669
 670 #ifdef CONFIG_WPS
 671         if (ssid->key_mgmt & WPA_KEY_MGMT_WPS) {
 672                 ret = os_snprintf(pos, end - pos, "%sWPS",
 673                                   pos == buf ? "" : " ");
 674                 if (ret < 0 || ret >= end - pos) {
 675                         end[-1] = '\0';
 676                         return buf;
 677                 }
 678                 pos += ret;
 679         }
 680 #endif /* CONFIG_WPS */
 681
 682 #ifdef CONFIG_SAE
 683         if (ssid->key_mgmt & WPA_KEY_MGMT_SAE) {
 684                 ret = os_snprintf(pos, end - pos, "%sSAE",
 685                                   pos == buf ? "" : " ");
 686                 if (ret < 0 || ret >= end - pos) {
 687                         end[-1] = '\0';
 688                         return buf;
 689                 }
 690                 pos += ret;
 691         }
 692
 693         if (ssid->key_mgmt & WPA_KEY_MGMT_FT_SAE) {
 694                 ret = os_snprintf(pos, end - pos, "%sFT-SAE",
 695                                   pos == buf ? "" : " ");
 696                 if (ret < 0 || ret >= end - pos) {
 697                         end[-1] = '\0';
 698                         return buf;
 699                 }
 700                 pos += ret;
 701         }
 702 #endif /* CONFIG_SAE */
 703
 704 #ifdef CONFIG_HS20
 705         if (ssid->key_mgmt & WPA_KEY_MGMT_OSEN) {
 706                 ret = os_snprintf(pos, end - pos, "%sOSEN",
 707                                   pos == buf ? "" : " ");
 708                 if (ret < 0 || ret >= end - pos) {
 709                         end[-1] = '\0';
 710                         return buf;
 711                 }
 712                 pos += ret;
 713         }
 714 #endif /* CONFIG_HS20 */
 715
 716         if (ssid->key_mgmt & WPA_KEY_MGMT_IEEE8021X_SUITE_B) {
 717                 ret = os_snprintf(pos, end - pos, "%sWPA-EAP-SUITE-B",
 718                                   pos == buf ? "" : " ");
 719                 if (ret < 0 || ret >= end - pos) {
 720                         end[-1] = '\0';
 721                         return buf;
 722                 }
 723                 pos += ret;
 724         }
 725
 726         if (pos == buf) {
 727                 os_free(buf);
 728                 buf = NULL;
 729         }
 730
 731         return buf;
 732 }
 733 #endif /* NO_CONFIG_WRITE */
 734
 735
 736 static int wpa_config_parse_cipher(int line, const char *value)
 737 {
 738         int val = wpa_parse_cipher(value);
 739         if (val < 0) {
 740                 wpa_printf(MSG_ERROR, "Line %d: invalid cipher '%s'.",
 741                            line, value);
 742                 return -1;
 743         }
 744         if (val == 0) {
 745                 wpa_printf(MSG_ERROR, "Line %d: no cipher values configured.",
 746                            line);
 747                 return -1;
 748         }
 749         return val;
 750 }
 751
 752
 753 #ifndef NO_CONFIG_WRITE
 754 static char * wpa_config_write_cipher(int cipher)
 755 {
 756         char *buf = os_zalloc(50);
 757         if (buf == NULL)
 758                 return NULL;
 759
 760         if (wpa_write_ciphers(buf, buf + 50, cipher, " ") < 0) {
 761                 os_free(buf);
 762                 return NULL;
 763         }
 764
 765         return buf;
 766 }
 767 #endif /* NO_CONFIG_WRITE */
 768
 769
 770 static int wpa_config_parse_pairwise(const struct parse_data *data,
 771                                      struct wpa_ssid *ssid, int line,
 772                                      const char *value)
 773 {
 774         int val;
 775         val = wpa_config_parse_cipher(line, value);
 776         if (val == -1)
 777                 return -1;
 778         if (val & ~WPA_ALLOWED_PAIRWISE_CIPHERS) {
 779                 wpa_printf(MSG_ERROR, "Line %d: not allowed pairwise cipher "
 780                            "(0x%x).", line, val);
 781                 return -1;
 782         }
 783
 784         wpa_printf(MSG_MSGDUMP, "pairwise: 0x%x", val);
 785         ssid->pairwise_cipher = val;
 786         return 0;
 787 }
 788
 789
 790 #ifndef NO_CONFIG_WRITE
 791 static char * wpa_config_write_pairwise(const struct parse_data *data,
 792                                         struct wpa_ssid *ssid)
 793 {
 794         return wpa_config_write_cipher(ssid->pairwise_cipher);
 795 }
 796 #endif /* NO_CONFIG_WRITE */
 797
 798
 799 static int wpa_config_parse_group(const struct parse_data *data,
 800                                   struct wpa_ssid *ssid, int line,
 801                                   const char *value)
 802 {
 803         int val;
 804         val = wpa_config_parse_cipher(line, value);
 805         if (val == -1)
 806                 return -1;
 807         if (val & ~WPA_ALLOWED_GROUP_CIPHERS) {
 808                 wpa_printf(MSG_ERROR, "Line %d: not allowed group cipher "
 809                            "(0x%x).", line, val);
 810                 return -1;
 811         }
 812
 813         wpa_printf(MSG_MSGDUMP, "group: 0x%x", val);
 814         ssid->group_cipher = val;
 815         return 0;
 816 }
 817
 818
 819 #ifndef NO_CONFIG_WRITE
 820 static char * wpa_config_write_group(const struct parse_data *data,
 821                                      struct wpa_ssid *ssid)
 822 {
 823         return wpa_config_write_cipher(ssid->group_cipher);
 824 }
 825 #endif /* NO_CONFIG_WRITE */
 826
 827
 828 static int wpa_config_parse_auth_alg(const struct parse_data *data,
 829                                      struct wpa_ssid *ssid, int line,
 830                                      const char *value)
 831 {
 832         int val = 0, last, errors = 0;
 833         char *start, *end, *buf;
 834
 835         buf = os_strdup(value);
 836         if (buf == NULL)
 837                 return -1;
 838         start = buf;
 839
 840         while (*start != '\0') {
 841                 while (*start == ' ' || *start == '\t')
 842                         start++;
 843                 if (*start == '\0')
 844                         break;
 845                 end = start;
 846                 while (*end != ' ' && *end != '\t' && *end != '\0')
 847                         end++;
 848                 last = *end == '\0';
 849                 *end = '\0';
 850                 if (os_strcmp(start, "OPEN") == 0)
 851                         val |= WPA_AUTH_ALG_OPEN;
 852                 else if (os_strcmp(start, "SHARED") == 0)
 853                         val |= WPA_AUTH_ALG_SHARED;
 854                 else if (os_strcmp(start, "LEAP") == 0)
 855                         val |= WPA_AUTH_ALG_LEAP;
 856                 else {
 857                         wpa_printf(MSG_ERROR, "Line %d: invalid auth_alg '%s'",
 858                                    line, start);
 859                         errors++;
 860                 }
 861
 862                 if (last)
 863                         break;
 864                 start = end + 1;
 865         }
 866         os_free(buf);
 867
 868         if (val == 0) {
 869                 wpa_printf(MSG_ERROR,
 870                            "Line %d: no auth_alg values configured.", line);
 871                 errors++;
 872         }
 873
 874         wpa_printf(MSG_MSGDUMP, "auth_alg: 0x%x", val);
 875         ssid->auth_alg = val;
 876         return errors ? -1 : 0;
 877 }
 878
 879
 880 #ifndef NO_CONFIG_WRITE
 881 static char * wpa_config_write_auth_alg(const struct parse_data *data,
 882                                         struct wpa_ssid *ssid)
 883 {
 884         char *buf, *pos, *end;
 885         int ret;
 886
 887         pos = buf = os_zalloc(30);
 888         if (buf == NULL)
 889                 return NULL;
 890         end = buf + 30;
 891
 892         if (ssid->auth_alg & WPA_AUTH_ALG_OPEN) {
 893                 ret = os_snprintf(pos, end - pos, "%sOPEN",
 894                                   pos == buf ? "" : " ");
 895                 if (ret < 0 || ret >= end - pos) {
 896                         end[-1] = '\0';
 897                         return buf;
 898                 }
 899                 pos += ret;
 900         }
 901
 902         if (ssid->auth_alg & WPA_AUTH_ALG_SHARED) {
 903                 ret = os_snprintf(pos, end - pos, "%sSHARED",
 904                                   pos == buf ? "" : " ");
 905                 if (ret < 0 || ret >= end - pos) {
 906                         end[-1] = '\0';
 907                         return buf;
 908                 }
 909                 pos += ret;
 910         }
 911
 912         if (ssid->auth_alg & WPA_AUTH_ALG_LEAP) {
 913                 ret = os_snprintf(pos, end - pos, "%sLEAP",
 914                                   pos == buf ? "" : " ");
 915                 if (ret < 0 || ret >= end - pos) {
 916                         end[-1] = '\0';
 917                         return buf;
 918                 }
 919                 pos += ret;
 920         }
 921
 922         if (pos == buf) {
 923                 os_free(buf);
 924                 buf = NULL;
 925         }
 926
 927         return buf;
 928 }
 929 #endif /* NO_CONFIG_WRITE */
 930
 931
 932 static int * wpa_config_parse_int_array(const char *value)
 933 {
 934         int *freqs;
 935         size_t used, len;
 936         const char *pos;
 937
 938         used = 0;
 939         len = 10;
 940         freqs = os_calloc(len + 1, sizeof(int));
 941         if (freqs == NULL)
 942                 return NULL;
 943
 944         pos = value;
 945         while (pos) {
 946                 while (*pos == ' ')
 947                         pos++;
 948                 if (used == len) {
 949                         int *n;
 950                         size_t i;
 951                         n = os_realloc_array(freqs, len * 2 + 1, sizeof(int));
 952                         if (n == NULL) {
 953                                 os_free(freqs);
 954                                 return NULL;
 955                         }
 956                         for (i = len; i <= len * 2; i++)
 957                                 n[i] = 0;
 958                         freqs = n;
 959                         len *= 2;
 960                 }
 961
 962                 freqs[used] = atoi(pos);
 963                 if (freqs[used] == 0)
 964                         break;
 965                 used++;
 966                 pos = os_strchr(pos + 1, ' ');
 967         }
 968
 969         return freqs;
 970 }
 971
 972
 973 static int wpa_config_parse_scan_freq(const struct parse_data *data,
 974                                       struct wpa_ssid *ssid, int line,
 975                                       const char *value)
 976 {
 977         int *freqs;
 978
 979         freqs = wpa_config_parse_int_array(value);
 980         if (freqs == NULL)
 981                 return -1;
 982         if (freqs[0] == 0) {
 983                 os_free(freqs);
 984                 freqs = NULL;
 985         }
 986         os_free(ssid->scan_freq);
 987         ssid->scan_freq = freqs;
 988
 989         return 0;
 990 }
 991
 992
 993 static int wpa_config_parse_freq_list(const struct parse_data *data,
 994                                       struct wpa_ssid *ssid, int line,
 995                                       const char *value)
 996 {
 997         int *freqs;
 998
 999         freqs = wpa_config_parse_int_array(value);
1000         if (freqs == NULL)
1001                 return -1;
1002         if (freqs[0] == 0) {
1003                 os_free(freqs);
1004                 freqs = NULL;
1005         }
1006         os_free(ssid->freq_list);
1007         ssid->freq_list = freqs;
1008
1009         return 0;
1010 }
1011
1012
1013 #ifndef NO_CONFIG_WRITE
1014 static char * wpa_config_write_freqs(const struct parse_data *data,
1015                                      const int *freqs)
1016 {
1017         char *buf, *pos, *end;
1018         int i, ret;
1019         size_t count;
1020
1021         if (freqs == NULL)
1022                 return NULL;
1023
1024         count = 0;
1025         for (i = 0; freqs[i]; i++)
1026                 count++;
1027
1028         pos = buf = os_zalloc(10 * count + 1);
1029         if (buf == NULL)
1030                 return NULL;
1031         end = buf + 10 * count + 1;
1032
1033         for (i = 0; freqs[i]; i++) {
1034                 ret = os_snprintf(pos, end - pos, "%s%u",
1035                                   i == 0 ? "" : " ", freqs[i]);
1036                 if (ret < 0 || ret >= end - pos) {
1037                         end[-1] = '\0';
1038                         return buf;
1039                 }
1040                 pos += ret;
1041         }
1042
1043         return buf;
1044 }
1045
1046
1047 static char * wpa_config_write_scan_freq(const struct parse_data *data,
1048                                          struct wpa_ssid *ssid)
1049 {
1050         return wpa_config_write_freqs(data, ssid->scan_freq);
1051 }
1052
1053
1054 static char * wpa_config_write_freq_list(const struct parse_data *data,
1055                                          struct wpa_ssid *ssid)
1056 {
1057         return wpa_config_write_freqs(data, ssid->freq_list);
1058 }
1059 #endif /* NO_CONFIG_WRITE */
1060
1061
1062 #ifdef IEEE8021X_EAPOL
1063 static int wpa_config_parse_eap(const struct parse_data *data,
1064                                 struct wpa_ssid *ssid, int line,
1065                                 const char *value)
1066 {
1067         int last, errors = 0;
1068         char *start, *end, *buf;
1069         struct eap_method_type *methods = NULL, *tmp;
1070         size_t num_methods = 0;
1071
1072         buf = os_strdup(value);
1073         if (buf == NULL)
1074                 return -1;
1075         start = buf;
1076
1077         while (*start != '\0') {
1078                 while (*start == ' ' || *start == '\t')
1079                         start++;
1080                 if (*start == '\0')
1081                         break;
1082                 end = start;
1083                 while (*end != ' ' && *end != '\t' && *end != '\0')
1084                         end++;
1085                 last = *end == '\0';
1086                 *end = '\0';
1087                 tmp = methods;
1088                 methods = os_realloc_array(methods, num_methods + 1,
1089                                            sizeof(*methods));
1090                 if (methods == NULL) {
1091                         os_free(tmp);
1092                         os_free(buf);
1093                         return -1;
1094                 }
1095                 methods[num_methods].method = eap_peer_get_type(
1096                         start, &methods[num_methods].vendor);
1097                 if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1098                     methods[num_methods].method == EAP_TYPE_NONE) {
1099                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP method "
1100                                    "'%s'", line, start);
1101                         wpa_printf(MSG_ERROR, "You may need to add support for"
1102                                    " this EAP method during wpa_supplicant\n"
1103                                    "build time configuration.\n"
1104                                    "See README for more information.");
1105                         errors++;
1106                 } else if (methods[num_methods].vendor == EAP_VENDOR_IETF &&
1107                            methods[num_methods].method == EAP_TYPE_LEAP)
1108                         ssid->leap++;
1109                 else
1110                         ssid->non_leap++;
1111                 num_methods++;
1112                 if (last)
1113                         break;
1114                 start = end + 1;
1115         }
1116         os_free(buf);
1117
1118         tmp = methods;
1119         methods = os_realloc_array(methods, num_methods + 1, sizeof(*methods));
1120         if (methods == NULL) {
1121                 os_free(tmp);
1122                 return -1;
1123         }
1124         methods[num_methods].vendor = EAP_VENDOR_IETF;
1125         methods[num_methods].method = EAP_TYPE_NONE;
1126         num_methods++;
1127
1128         wpa_hexdump(MSG_MSGDUMP, "eap methods",
1129                     (u8 *) methods, num_methods * sizeof(*methods));
1130         os_free(ssid->eap.eap_methods);
1131         ssid->eap.eap_methods = methods;
1132         return errors ? -1 : 0;
1133 }
1134
1135
1136 static char * wpa_config_write_eap(const struct parse_data *data,
1137                                    struct wpa_ssid *ssid)
1138 {
1139         int i, ret;
1140         char *buf, *pos, *end;
1141         const struct eap_method_type *eap_methods = ssid->eap.eap_methods;
1142         const char *name;
1143
1144         if (eap_methods == NULL)
1145                 return NULL;
1146
1147         pos = buf = os_zalloc(100);
1148         if (buf == NULL)
1149                 return NULL;
1150         end = buf + 100;
1151
1152         for (i = 0; eap_methods[i].vendor != EAP_VENDOR_IETF ||
1153                      eap_methods[i].method != EAP_TYPE_NONE; i++) {
1154                 name = eap_get_name(eap_methods[i].vendor,
1155                                     eap_methods[i].method);
1156                 if (name) {
1157                         ret = os_snprintf(pos, end - pos, "%s%s",
1158                                           pos == buf ? "" : " ", name);
1159                         if (ret < 0 || ret >= end - pos)
1160                                 break;
1161                         pos += ret;
1162                 }
1163         }
1164
1165         end[-1] = '\0';
1166
1167         return buf;
1168 }
1169
1170
1171 static int wpa_config_parse_password(const struct parse_data *data,
1172                                      struct wpa_ssid *ssid, int line,
1173                                      const char *value)
1174 {
1175         u8 *hash;
1176
1177         if (os_strcmp(value, "NULL") == 0) {
1178                 wpa_printf(MSG_DEBUG, "Unset configuration string 'password'");
1179                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1180                 ssid->eap.password = NULL;
1181                 ssid->eap.password_len = 0;
1182                 return 0;
1183         }
1184
1185 #ifdef CONFIG_EXT_PASSWORD
1186         if (os_strncmp(value, "ext:", 4) == 0) {
1187                 char *name = os_strdup(value + 4);
1188                 if (name == NULL)
1189                         return -1;
1190                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1191                 ssid->eap.password = (u8 *) name;
1192                 ssid->eap.password_len = os_strlen(name);
1193                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1194                 ssid->eap.flags |= EAP_CONFIG_FLAGS_EXT_PASSWORD;
1195                 return 0;
1196         }
1197 #endif /* CONFIG_EXT_PASSWORD */
1198
1199         if (os_strncmp(value, "hash:", 5) != 0) {
1200                 char *tmp;
1201                 size_t res_len;
1202
1203                 tmp = wpa_config_parse_string(value, &res_len);
1204                 if (tmp == NULL) {
1205                         wpa_printf(MSG_ERROR, "Line %d: failed to parse "
1206                                    "password.", line);
1207                         return -1;
1208                 }
1209                 wpa_hexdump_ascii_key(MSG_MSGDUMP, data->name,
1210                                       (u8 *) tmp, res_len);
1211
1212                 bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1213                 ssid->eap.password = (u8 *) tmp;
1214                 ssid->eap.password_len = res_len;
1215                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1216                 ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1217
1218                 return 0;
1219         }
1220
1221
1222         /* NtPasswordHash: hash:<32 hex digits> */
1223         if (os_strlen(value + 5) != 2 * 16) {
1224                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash length "
1225                            "(expected 32 hex digits)", line);
1226                 return -1;
1227         }
1228
1229         hash = os_malloc(16);
1230         if (hash == NULL)
1231                 return -1;
1232
1233         if (hexstr2bin(value + 5, hash, 16)) {
1234                 os_free(hash);
1235                 wpa_printf(MSG_ERROR, "Line %d: Invalid password hash", line);
1236                 return -1;
1237         }
1238
1239         wpa_hexdump_key(MSG_MSGDUMP, data->name, hash, 16);
1240
1241         bin_clear_free(ssid->eap.password, ssid->eap.password_len);
1242         ssid->eap.password = hash;
1243         ssid->eap.password_len = 16;
1244         ssid->eap.flags |= EAP_CONFIG_FLAGS_PASSWORD_NTHASH;
1245         ssid->eap.flags &= ~EAP_CONFIG_FLAGS_EXT_PASSWORD;
1246
1247         return 0;
1248 }
1249
1250
1251 static char * wpa_config_write_password(const struct parse_data *data,
1252                                         struct wpa_ssid *ssid)
1253 {
1254         char *buf;
1255
1256         if (ssid->eap.password == NULL)
1257                 return NULL;
1258
1259 #ifdef CONFIG_EXT_PASSWORD
1260         if (ssid->eap.flags & EAP_CONFIG_FLAGS_EXT_PASSWORD) {
1261                 buf = os_zalloc(4 + ssid->eap.password_len + 1);
1262                 if (buf == NULL)
1263                         return NULL;
1264                 os_memcpy(buf, "ext:", 4);
1265                 os_memcpy(buf + 4, ssid->eap.password, ssid->eap.password_len);
1266                 return buf;
1267         }
1268 #endif /* CONFIG_EXT_PASSWORD */
1269
1270         if (!(ssid->eap.flags & EAP_CONFIG_FLAGS_PASSWORD_NTHASH)) {
1271                 return wpa_config_write_string(
1272                         ssid->eap.password, ssid->eap.password_len);
1273         }
1274
1275         buf = os_malloc(5 + 32 + 1);
1276         if (buf == NULL)
1277                 return NULL;
1278
1279         os_memcpy(buf, "hash:", 5);
1280         wpa_snprintf_hex(buf + 5, 32 + 1, ssid->eap.password, 16);
1281
1282         return buf;
1283 }
1284 #endif /* IEEE8021X_EAPOL */
1285
1286
1287 static int wpa_config_parse_wep_key(u8 *key, size_t *len, int line,
1288                                     const char *value, int idx)
1289 {
1290         char *buf, title[20];
1291         int res;
1292
1293         buf = wpa_config_parse_string(value, len);
1294         if (buf == NULL) {
1295                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key %d '%s'.",
1296                            line, idx, value);
1297                 return -1;
1298         }
1299         if (*len > MAX_WEP_KEY_LEN) {
1300                 wpa_printf(MSG_ERROR, "Line %d: Too long WEP key %d '%s'.",
1301                            line, idx, value);
1302                 os_free(buf);
1303                 return -1;
1304         }
1305         if (*len && *len != 5 && *len != 13 && *len != 16) {
1306                 wpa_printf(MSG_ERROR, "Line %d: Invalid WEP key length %u - "
1307                            "this network block will be ignored",
1308                            line, (unsigned int) *len);
1309         }
1310         os_memcpy(key, buf, *len);
1311         str_clear_free(buf);
1312         res = os_snprintf(title, sizeof(title), "wep_key%d", idx);
1313         if (res >= 0 && (size_t) res < sizeof(title))
1314                 wpa_hexdump_key(MSG_MSGDUMP, title, key, *len);
1315         return 0;
1316 }
1317
1318
1319 static int wpa_config_parse_wep_key0(const struct parse_data *data,
1320                                      struct wpa_ssid *ssid, int line,
1321                                      const char *value)
1322 {
1323         return wpa_config_parse_wep_key(ssid->wep_key[0],
1324                                         &ssid->wep_key_len[0], line,
1325                                         value, 0);
1326 }
1327
1328
1329 static int wpa_config_parse_wep_key1(const struct parse_data *data,
1330                                      struct wpa_ssid *ssid, int line,
1331                                      const char *value)
1332 {
1333         return wpa_config_parse_wep_key(ssid->wep_key[1],
1334                                         &ssid->wep_key_len[1], line,
1335                                         value, 1);
1336 }
1337
1338
1339 static int wpa_config_parse_wep_key2(const struct parse_data *data,
1340                                      struct wpa_ssid *ssid, int line,
1341                                      const char *value)
1342 {
1343         return wpa_config_parse_wep_key(ssid->wep_key[2],
1344                                         &ssid->wep_key_len[2], line,
1345                                         value, 2);
1346 }
1347
1348
1349 static int wpa_config_parse_wep_key3(const struct parse_data *data,
1350                                      struct wpa_ssid *ssid, int line,
1351                                      const char *value)
1352 {
1353         return wpa_config_parse_wep_key(ssid->wep_key[3],
1354                                         &ssid->wep_key_len[3], line,
1355                                         value, 3);
1356 }
1357
1358
1359 #ifndef NO_CONFIG_WRITE
1360 static char * wpa_config_write_wep_key(struct wpa_ssid *ssid, int idx)
1361 {
1362         if (ssid->wep_key_len[idx] == 0)
1363                 return NULL;
1364         return wpa_config_write_string(ssid->wep_key[idx],
1365                                        ssid->wep_key_len[idx]);
1366 }
1367
1368
1369 static char * wpa_config_write_wep_key0(const struct parse_data *data,
1370                                         struct wpa_ssid *ssid)
1371 {
1372         return wpa_config_write_wep_key(ssid, 0);
1373 }
1374
1375
1376 static char * wpa_config_write_wep_key1(const struct parse_data *data,
1377                                         struct wpa_ssid *ssid)
1378 {
1379         return wpa_config_write_wep_key(ssid, 1);
1380 }
1381
1382
1383 static char * wpa_config_write_wep_key2(const struct parse_data *data,
1384                                         struct wpa_ssid *ssid)
1385 {
1386         return wpa_config_write_wep_key(ssid, 2);
1387 }
1388
1389
1390 static char * wpa_config_write_wep_key3(const struct parse_data *data,
1391                                         struct wpa_ssid *ssid)
1392 {
1393         return wpa_config_write_wep_key(ssid, 3);
1394 }
1395 #endif /* NO_CONFIG_WRITE */
1396
1397
1398 #ifdef CONFIG_P2P
1399
1400 static int wpa_config_parse_go_p2p_dev_addr(const struct parse_data *data,
1401                                             struct wpa_ssid *ssid, int line,
1402                                             const char *value)
1403 {
1404         if (value[0] == '\0' || os_strcmp(value, "\"\"") == 0 ||
1405             os_strcmp(value, "any") == 0) {
1406                 os_memset(ssid->go_p2p_dev_addr, 0, ETH_ALEN);
1407                 wpa_printf(MSG_MSGDUMP, "GO P2P Device Address any");
1408                 return 0;
1409         }
1410         if (hwaddr_aton(value, ssid->go_p2p_dev_addr)) {
1411                 wpa_printf(MSG_ERROR, "Line %d: Invalid GO P2P Device Address '%s'.",
1412                            line, value);
1413                 return -1;
1414         }
1415         ssid->bssid_set = 1;
1416         wpa_printf(MSG_MSGDUMP, "GO P2P Device Address " MACSTR,
1417                    MAC2STR(ssid->go_p2p_dev_addr));
1418         return 0;
1419 }
1420
1421
1422 #ifndef NO_CONFIG_WRITE
1423 static char * wpa_config_write_go_p2p_dev_addr(const struct parse_data *data,
1424                                                struct wpa_ssid *ssid)
1425 {
1426         char *value;
1427         int res;
1428
1429         if (is_zero_ether_addr(ssid->go_p2p_dev_addr))
1430                 return NULL;
1431
1432         value = os_malloc(20);
1433         if (value == NULL)
1434                 return NULL;
1435         res = os_snprintf(value, 20, MACSTR, MAC2STR(ssid->go_p2p_dev_addr));
1436         if (res < 0 || res >= 20) {
1437                 os_free(value);
1438                 return NULL;
1439         }
1440         value[20 - 1] = '\0';
1441         return value;
1442 }
1443 #endif /* NO_CONFIG_WRITE */
1444
1445
1446 static int wpa_config_parse_p2p_client_list(const struct parse_data *data,
1447                                             struct wpa_ssid *ssid, int line,
1448                                             const char *value)
1449 {
1450         const char *pos;
1451         u8 *buf, *n, addr[ETH_ALEN];
1452         size_t count;
1453
1454         buf = NULL;
1455         count = 0;
1456
1457         pos = value;
1458         while (pos && *pos) {
1459                 while (*pos == ' ')
1460                         pos++;
1461
1462                 if (hwaddr_aton(pos, addr)) {
1463                         if (count == 0) {
1464                                 wpa_printf(MSG_ERROR, "Line %d: Invalid "
1465                                            "p2p_client_list address '%s'.",
1466                                            line, value);
1467                                 os_free(buf);
1468                                 return -1;
1469                         }
1470                         /* continue anyway since this could have been from a
1471                          * truncated configuration file line */
1472                         wpa_printf(MSG_INFO, "Line %d: Ignore likely "
1473                                    "truncated p2p_client_list address '%s'",
1474                                    line, pos);
1475                 } else {
1476                         n = os_realloc_array(buf, count + 1, ETH_ALEN);
1477                         if (n == NULL) {
1478                                 os_free(buf);
1479                                 return -1;
1480                         }
1481                         buf = n;
1482                         os_memmove(buf + ETH_ALEN, buf, count * ETH_ALEN);
1483                         os_memcpy(buf, addr, ETH_ALEN);
1484                         count++;
1485                         wpa_hexdump(MSG_MSGDUMP, "p2p_client_list",
1486                                     addr, ETH_ALEN);
1487                 }
1488
1489                 pos = os_strchr(pos, ' ');
1490         }
1491
1492         os_free(ssid->p2p_client_list);
1493         ssid->p2p_client_list = buf;
1494         ssid->num_p2p_clients = count;
1495
1496         return 0;
1497 }
1498
1499
1500 #ifndef NO_CONFIG_WRITE
1501 static char * wpa_config_write_p2p_client_list(const struct parse_data *data,
1502                                                struct wpa_ssid *ssid)
1503 {
1504         char *value, *end, *pos;
1505         int res;
1506         size_t i;
1507
1508         if (ssid->p2p_client_list == NULL || ssid->num_p2p_clients == 0)
1509                 return NULL;
1510
1511         value = os_malloc(20 * ssid->num_p2p_clients);
1512         if (value == NULL)
1513                 return NULL;
1514         pos = value;
1515         end = value + 20 * ssid->num_p2p_clients;
1516
1517         for (i = ssid->num_p2p_clients; i > 0; i--) {
1518                 res = os_snprintf(pos, end - pos, MACSTR " ",
1519                                   MAC2STR(ssid->p2p_client_list +
1520                                           (i - 1) * ETH_ALEN));
1521                 if (res < 0 || res >= end - pos) {
1522                         os_free(value);
1523                         return NULL;
1524                 }
1525                 pos += res;
1526         }
1527
1528         if (pos > value)
1529                 pos[-1] = '\0';
1530
1531         return value;
1532 }
1533 #endif /* NO_CONFIG_WRITE */
1534
1535
1536 static int wpa_config_parse_psk_list(const struct parse_data *data,
1537                                      struct wpa_ssid *ssid, int line,
1538                                      const char *value)
1539 {
1540         struct psk_list_entry *p;
1541         const char *pos;
1542
1543         p = os_zalloc(sizeof(*p));
1544         if (p == NULL)
1545                 return -1;
1546
1547         pos = value;
1548         if (os_strncmp(pos, "P2P-", 4) == 0) {
1549                 p->p2p = 1;
1550                 pos += 4;
1551         }
1552
1553         if (hwaddr_aton(pos, p->addr)) {
1554                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list address '%s'",
1555                            line, pos);
1556                 os_free(p);
1557                 return -1;
1558         }
1559         pos += 17;
1560         if (*pos != '-') {
1561                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list '%s'",
1562                            line, pos);
1563                 os_free(p);
1564                 return -1;
1565         }
1566         pos++;
1567
1568         if (hexstr2bin(pos, p->psk, PMK_LEN) || pos[PMK_LEN * 2] != '\0') {
1569                 wpa_printf(MSG_ERROR, "Line %d: Invalid psk_list PSK '%s'",
1570                            line, pos);
1571                 os_free(p);
1572                 return -1;
1573         }
1574
1575         dl_list_add(&ssid->psk_list, &p->list);
1576
1577         return 0;
1578 }
1579
1580
1581 #ifndef NO_CONFIG_WRITE
1582 static char * wpa_config_write_psk_list(const struct parse_data *data,
1583                                         struct wpa_ssid *ssid)
1584 {
1585         return NULL;
1586 }
1587 #endif /* NO_CONFIG_WRITE */
1588
1589 #endif /* CONFIG_P2P */
1590
1591
1592 #ifdef CONFIG_MESH
1593
1594 static int wpa_config_parse_mesh_ht_mode(const struct parse_data *data,
1595                                          struct wpa_ssid *ssid, int line,
1596                                          const char *value)
1597 {
1598         int htval = 0;
1599
1600         if (os_strcmp(value, "NOHT") == 0)
1601                 htval = CHAN_NO_HT;
1602         else if (os_strcmp(value, "HT20") == 0)
1603                 htval = CHAN_HT20;
1604         else if (os_strcmp(value, "HT40-") == 0)
1605                 htval = CHAN_HT40MINUS;
1606         else if (os_strcmp(value, "HT40+") == 0)
1607                 htval = CHAN_HT40PLUS;
1608         else {
1609                 wpa_printf(MSG_ERROR,
1610                            "Line %d: no ht_mode configured.", line);
1611                 return -1;
1612         }
1613
1614         wpa_printf(MSG_MSGDUMP, "mesh_ht_mode: 0x%x", htval);
1615         ssid->mesh_ht_mode = htval;
1616         return 0;
1617 }
1618
1619
1620 #ifndef NO_CONFIG_WRITE
1621 static char * wpa_config_write_mesh_ht_mode(const struct parse_data *data,
1622                                             struct wpa_ssid *ssid)
1623 {
1624         char *val;
1625
1626         switch (ssid->mesh_ht_mode) {
1627         default:
1628                 val = NULL;
1629                 break;
1630         case CHAN_NO_HT:
1631                 val = "NOHT";
1632                 break;
1633         case CHAN_HT20:
1634                 val = "HT20";
1635                 break;
1636         case CHAN_HT40MINUS:
1637                 val = "HT40-";
1638                 break;
1639         case CHAN_HT40PLUS:
1640                 val = "HT40+";
1641                 break;
1642         }
1643         return val ? os_strdup(val) : NULL;
1644 }
1645
1646 #endif /* NO_CONFIG_WRITE */
1647
1648 #endif /* CONFIG_MESH */
1649
1650
1651 /* Helper macros for network block parser */
1652
1653 #ifdef OFFSET
1654 #undef OFFSET
1655 #endif /* OFFSET */
1656 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1657 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1658
1659 /* STR: Define a string variable for an ASCII string; f = field name */
1660 #ifdef NO_CONFIG_WRITE
1661 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1662 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1663 #else /* NO_CONFIG_WRITE */
1664 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1665 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1666 #endif /* NO_CONFIG_WRITE */
1667 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1668 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1669 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1670 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1671
1672 /* STR_LEN: Define a string variable with a separate variable for storing the
1673  * data length. Unlike STR(), this can be used to store arbitrary binary data
1674  * (i.e., even nul termination character). */
1675 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1676 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1677 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1678 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1679 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1680
1681 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1682  * explicitly specified. */
1683 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1684 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1685 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1686
1687 #ifdef NO_CONFIG_WRITE
1688 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1689 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1690 #else /* NO_CONFIG_WRITE */
1691 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1692         OFFSET(f), (void *) 0
1693 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1694         OFFSET(eap.f), (void *) 0
1695 #endif /* NO_CONFIG_WRITE */
1696
1697 /* INT: Define an integer variable */
1698 #define INT(f) _INT(f), NULL, NULL, 0
1699 #define INTe(f) _INTe(f), NULL, NULL, 0
1700
1701 /* INT_RANGE: Define an integer variable with allowed value range */
1702 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1703
1704 /* FUNC: Define a configuration variable that uses a custom function for
1705  * parsing and writing the value. */
1706 #ifdef NO_CONFIG_WRITE
1707 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1708 #else /* NO_CONFIG_WRITE */
1709 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1710         NULL, NULL, NULL, NULL
1711 #endif /* NO_CONFIG_WRITE */
1712 #define FUNC(f) _FUNC(f), 0
1713 #define FUNC_KEY(f) _FUNC(f), 1
1714
1715 /*
1716  * Table of network configuration variables. This table is used to parse each
1717  * network configuration variable, e.g., each line in wpa_supplicant.conf file
1718  * that is inside a network block.
1719  *
1720  * This table is generated using the helper macros defined above and with
1721  * generous help from the C pre-processor. The field name is stored as a string
1722  * into .name and for STR and INT types, the offset of the target buffer within
1723  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1724  * offset to the field containing the length of the configuration variable.
1725  * .param3 and .param4 can be used to mark the allowed range (length for STR
1726  * and value for INT).
1727  *
1728  * For each configuration line in wpa_supplicant.conf, the parser goes through
1729  * this table and select the entry that matches with the field name. The parser
1730  * function (.parser) is then called to parse the actual value of the field.
1731  *
1732  * This kind of mechanism makes it easy to add new configuration parameters,
1733  * since only one line needs to be added into this table and into the
1734  * struct wpa_ssid definition if the new variable is either a string or
1735  * integer. More complex types will need to use their own parser and writer
1736  * functions.
1737  */
1738 static const struct parse_data ssid_fields[] = {
1739         { STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1740         { INT_RANGE(scan_ssid, 0, 1) },
1741         { FUNC(bssid) },
1742         { FUNC_KEY(psk) },
1743         { FUNC(proto) },
1744         { FUNC(key_mgmt) },
1745         { INT(bg_scan_period) },
1746         { FUNC(pairwise) },
1747         { FUNC(group) },
1748         { FUNC(auth_alg) },
1749         { FUNC(scan_freq) },
1750         { FUNC(freq_list) },
1751 #ifdef IEEE8021X_EAPOL
1752         { FUNC(eap) },
1753         { STR_LENe(identity) },
1754         { STR_LENe(anonymous_identity) },
1755         { FUNC_KEY(password) },
1756         { STRe(ca_cert) },
1757         { STRe(ca_path) },
1758         { STRe(client_cert) },
1759         { STRe(private_key) },
1760         { STR_KEYe(private_key_passwd) },
1761         { STRe(dh_file) },
1762         { STRe(subject_match) },
1763         { STRe(altsubject_match) },
1764         { STRe(domain_suffix_match) },
1765         { STRe(ca_cert2) },
1766         { STRe(ca_path2) },
1767         { STRe(client_cert2) },
1768         { STRe(private_key2) },
1769         { STR_KEYe(private_key2_passwd) },
1770         { STRe(dh_file2) },
1771         { STRe(subject_match2) },
1772         { STRe(altsubject_match2) },
1773         { STRe(domain_suffix_match2) },
1774         { STRe(phase1) },
1775         { STRe(phase2) },
1776         { STRe(pcsc) },
1777         { STR_KEYe(pin) },
1778         { STRe(engine_id) },
1779         { STRe(key_id) },
1780         { STRe(cert_id) },
1781         { STRe(ca_cert_id) },
1782         { STR_KEYe(pin2) },
1783         { STRe(engine2_id) },
1784         { STRe(key2_id) },
1785         { STRe(cert2_id) },
1786         { STRe(ca_cert2_id) },
1787         { INTe(engine) },
1788         { INTe(engine2) },
1789         { INT(eapol_flags) },
1790         { INTe(sim_num) },
1791         { STRe(openssl_ciphers) },
1792 #endif /* IEEE8021X_EAPOL */
1793         { FUNC_KEY(wep_key0) },
1794         { FUNC_KEY(wep_key1) },
1795         { FUNC_KEY(wep_key2) },
1796         { FUNC_KEY(wep_key3) },
1797         { INT(wep_tx_keyidx) },
1798         { INT(priority) },
1799 #ifdef IEEE8021X_EAPOL
1800         { INT(eap_workaround) },
1801         { STRe(pac_file) },
1802         { INTe(fragment_size) },
1803         { INTe(ocsp) },
1804 #endif /* IEEE8021X_EAPOL */
1805 #ifdef CONFIG_MESH
1806         { INT_RANGE(mode, 0, 5) },
1807         { INT_RANGE(no_auto_peer, 0, 1) },
1808 #else /* CONFIG_MESH */
1809         { INT_RANGE(mode, 0, 4) },
1810 #endif /* CONFIG_MESH */
1811         { INT_RANGE(proactive_key_caching, 0, 1) },
1812         { INT_RANGE(disabled, 0, 2) },
1813         { STR(id_str) },
1814 #ifdef CONFIG_IEEE80211W
1815         { INT_RANGE(ieee80211w, 0, 2) },
1816 #endif /* CONFIG_IEEE80211W */
1817         { INT_RANGE(peerkey, 0, 1) },
1818         { INT_RANGE(mixed_cell, 0, 1) },
1819         { INT_RANGE(frequency, 0, 65000) },
1820 #ifdef CONFIG_MESH
1821         { FUNC(mesh_ht_mode) },
1822 #endif /* CONFIG_MESH */
1823         { INT(wpa_ptk_rekey) },
1824         { STR(bgscan) },
1825         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1826 #ifdef CONFIG_P2P
1827         { FUNC(go_p2p_dev_addr) },
1828         { FUNC(p2p_client_list) },
1829         { FUNC(psk_list) },
1830 #endif /* CONFIG_P2P */
1831 #ifdef CONFIG_HT_OVERRIDES
1832         { INT_RANGE(disable_ht, 0, 1) },
1833         { INT_RANGE(disable_ht40, -1, 1) },
1834         { INT_RANGE(disable_sgi, 0, 1) },
1835         { INT_RANGE(disable_ldpc, 0, 1) },
1836         { INT_RANGE(ht40_intolerant, 0, 1) },
1837         { INT_RANGE(disable_max_amsdu, -1, 1) },
1838         { INT_RANGE(ampdu_factor, -1, 3) },
1839         { INT_RANGE(ampdu_density, -1, 7) },
1840         { STR(ht_mcs) },
1841 #endif /* CONFIG_HT_OVERRIDES */
1842 #ifdef CONFIG_VHT_OVERRIDES
1843         { INT_RANGE(disable_vht, 0, 1) },
1844         { INT(vht_capa) },
1845         { INT(vht_capa_mask) },
1846         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1847         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1848         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1849         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1850         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1851         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1852         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1853         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1854         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1855         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1856         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1857         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1858         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1859         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1860         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1861         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1862 #endif /* CONFIG_VHT_OVERRIDES */
1863         { INT(ap_max_inactivity) },
1864         { INT(dtim_period) },
1865         { INT(beacon_int) },
1866 #ifdef CONFIG_MACSEC
1867         { INT_RANGE(macsec_policy, 0, 1) },
1868 #endif /* CONFIG_MACSEC */
1869 #ifdef CONFIG_HS20
1870         { INT(update_identifier) },
1871 #endif /* CONFIG_HS20 */
1872         { INT_RANGE(mac_addr, 0, 2) },
1873 };
1874
1875 #undef OFFSET
1876 #undef _STR
1877 #undef STR
1878 #undef STR_KEY
1879 #undef _STR_LEN
1880 #undef STR_LEN
1881 #undef STR_LEN_KEY
1882 #undef _STR_RANGE
1883 #undef STR_RANGE
1884 #undef STR_RANGE_KEY
1885 #undef _INT
1886 #undef INT
1887 #undef INT_RANGE
1888 #undef _FUNC
1889 #undef FUNC
1890 #undef FUNC_KEY
1891 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
1892
1893
1894 /**
1895  * wpa_config_add_prio_network - Add a network to priority lists
1896  * @config: Configuration data from wpa_config_read()
1897  * @ssid: Pointer to the network configuration to be added to the list
1898  * Returns: 0 on success, -1 on failure
1899  *
1900  * This function is used to add a network block to the priority list of
1901  * networks. This must be called for each network when reading in the full
1902  * configuration. In addition, this can be used indirectly when updating
1903  * priorities by calling wpa_config_update_prio_list().
1904  */
1905 int wpa_config_add_prio_network(struct wpa_config *config,
1906                                 struct wpa_ssid *ssid)
1907 {
1908         int prio;
1909         struct wpa_ssid *prev, **nlist;
1910
1911         /*
1912          * Add to an existing priority list if one is available for the
1913          * configured priority level for this network.
1914          */
1915         for (prio = 0; prio < config->num_prio; prio++) {
1916                 prev = config->pssid[prio];
1917                 if (prev->priority == ssid->priority) {
1918                         while (prev->pnext)
1919                                 prev = prev->pnext;
1920                         prev->pnext = ssid;
1921                         return 0;
1922                 }
1923         }
1924
1925         /* First network for this priority - add a new priority list */
1926         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
1927                                  sizeof(struct wpa_ssid *));
1928         if (nlist == NULL)
1929                 return -1;
1930
1931         for (prio = 0; prio < config->num_prio; prio++) {
1932                 if (nlist[prio]->priority < ssid->priority) {
1933                         os_memmove(&nlist[prio + 1], &nlist[prio],
1934                                    (config->num_prio - prio) *
1935                                    sizeof(struct wpa_ssid *));
1936                         break;
1937                 }
1938         }
1939
1940         nlist[prio] = ssid;
1941         config->num_prio++;
1942         config->pssid = nlist;
1943
1944         return 0;
1945 }
1946
1947
1948 /**
1949  * wpa_config_update_prio_list - Update network priority list
1950  * @config: Configuration data from wpa_config_read()
1951  * Returns: 0 on success, -1 on failure
1952  *
1953  * This function is called to update the priority list of networks in the
1954  * configuration when a network is being added or removed. This is also called
1955  * if a priority for a network is changed.
1956  */
1957 int wpa_config_update_prio_list(struct wpa_config *config)
1958 {
1959         struct wpa_ssid *ssid;
1960         int ret = 0;
1961
1962         os_free(config->pssid);
1963         config->pssid = NULL;
1964         config->num_prio = 0;
1965
1966         ssid = config->ssid;
1967         while (ssid) {
1968                 ssid->pnext = NULL;
1969                 if (wpa_config_add_prio_network(config, ssid) < 0)
1970                         ret = -1;
1971                 ssid = ssid->next;
1972         }
1973
1974         return ret;
1975 }
1976
1977
1978 #ifdef IEEE8021X_EAPOL
1979 static void eap_peer_config_free(struct eap_peer_config *eap)
1980 {
1981         os_free(eap->eap_methods);
1982         bin_clear_free(eap->identity, eap->identity_len);
1983         os_free(eap->anonymous_identity);
1984         bin_clear_free(eap->password, eap->password_len);
1985         os_free(eap->ca_cert);
1986         os_free(eap->ca_path);
1987         os_free(eap->client_cert);
1988         os_free(eap->private_key);
1989         str_clear_free(eap->private_key_passwd);
1990         os_free(eap->dh_file);
1991         os_free(eap->subject_match);
1992         os_free(eap->altsubject_match);
1993         os_free(eap->domain_suffix_match);
1994         os_free(eap->ca_cert2);
1995         os_free(eap->ca_path2);
1996         os_free(eap->client_cert2);
1997         os_free(eap->private_key2);
1998         str_clear_free(eap->private_key2_passwd);
1999         os_free(eap->dh_file2);
2000         os_free(eap->subject_match2);
2001         os_free(eap->altsubject_match2);
2002         os_free(eap->domain_suffix_match2);
2003         os_free(eap->phase1);
2004         os_free(eap->phase2);
2005         os_free(eap->pcsc);
2006         str_clear_free(eap->pin);
2007         os_free(eap->engine_id);
2008         os_free(eap->key_id);
2009         os_free(eap->cert_id);
2010         os_free(eap->ca_cert_id);
2011         os_free(eap->key2_id);
2012         os_free(eap->cert2_id);
2013         os_free(eap->ca_cert2_id);
2014         str_clear_free(eap->pin2);
2015         os_free(eap->engine2_id);
2016         os_free(eap->otp);
2017         os_free(eap->pending_req_otp);
2018         os_free(eap->pac_file);
2019         bin_clear_free(eap->new_password, eap->new_password_len);
2020         str_clear_free(eap->external_sim_resp);
2021         os_free(eap->openssl_ciphers);
2022 }
2023 #endif /* IEEE8021X_EAPOL */
2024
2025
2026 /**
2027  * wpa_config_free_ssid - Free network/ssid configuration data
2028  * @ssid: Configuration data for the network
2029  *
2030  * This function frees all resources allocated for the network configuration
2031  * data.
2032  */
2033 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2034 {
2035         struct psk_list_entry *psk;
2036
2037         os_free(ssid->ssid);
2038         os_memset(ssid->psk, 0, sizeof(ssid->psk));
2039         str_clear_free(ssid->passphrase);
2040         os_free(ssid->ext_psk);
2041 #ifdef IEEE8021X_EAPOL
2042         eap_peer_config_free(&ssid->eap);
2043 #endif /* IEEE8021X_EAPOL */
2044         os_free(ssid->id_str);
2045         os_free(ssid->scan_freq);
2046         os_free(ssid->freq_list);
2047         os_free(ssid->bgscan);
2048         os_free(ssid->p2p_client_list);
2049 #ifdef CONFIG_HT_OVERRIDES
2050         os_free(ssid->ht_mcs);
2051 #endif /* CONFIG_HT_OVERRIDES */
2052         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2053                                     list))) {
2054                 dl_list_del(&psk->list);
2055                 os_free(psk);
2056         }
2057         os_free(ssid);
2058 }
2059
2060
2061 void wpa_config_free_cred(struct wpa_cred *cred)
2062 {
2063         size_t i;
2064
2065         os_free(cred->realm);
2066         str_clear_free(cred->username);
2067         str_clear_free(cred->password);
2068         os_free(cred->ca_cert);
2069         os_free(cred->client_cert);
2070         os_free(cred->private_key);
2071         str_clear_free(cred->private_key_passwd);
2072         os_free(cred->imsi);
2073         str_clear_free(cred->milenage);
2074         for (i = 0; i < cred->num_domain; i++)
2075                 os_free(cred->domain[i]);
2076         os_free(cred->domain);
2077         os_free(cred->domain_suffix_match);
2078         os_free(cred->eap_method);
2079         os_free(cred->phase1);
2080         os_free(cred->phase2);
2081         os_free(cred->excluded_ssid);
2082         os_free(cred->roaming_partner);
2083         os_free(cred->provisioning_sp);
2084         for (i = 0; i < cred->num_req_conn_capab; i++)
2085                 os_free(cred->req_conn_capab_port[i]);
2086         os_free(cred->req_conn_capab_port);
2087         os_free(cred->req_conn_capab_proto);
2088         os_free(cred);
2089 }
2090
2091
2092 void wpa_config_flush_blobs(struct wpa_config *config)
2093 {
2094 #ifndef CONFIG_NO_CONFIG_BLOBS
2095         struct wpa_config_blob *blob, *prev;
2096
2097         blob = config->blobs;
2098         config->blobs = NULL;
2099         while (blob) {
2100                 prev = blob;
2101                 blob = blob->next;
2102                 wpa_config_free_blob(prev);
2103         }
2104 #endif /* CONFIG_NO_CONFIG_BLOBS */
2105 }
2106
2107
2108 /**
2109  * wpa_config_free - Free configuration data
2110  * @config: Configuration data from wpa_config_read()
2111  *
2112  * This function frees all resources allocated for the configuration data by
2113  * wpa_config_read().
2114  */
2115 void wpa_config_free(struct wpa_config *config)
2116 {
2117         struct wpa_ssid *ssid, *prev = NULL;
2118         struct wpa_cred *cred, *cprev;
2119
2120         ssid = config->ssid;
2121         while (ssid) {
2122                 prev = ssid;
2123                 ssid = ssid->next;
2124                 wpa_config_free_ssid(prev);
2125         }
2126
2127         cred = config->cred;
2128         while (cred) {
2129                 cprev = cred;
2130                 cred = cred->next;
2131                 wpa_config_free_cred(cprev);
2132         }
2133
2134         wpa_config_flush_blobs(config);
2135
2136         wpabuf_free(config->wps_vendor_ext_m1);
2137         os_free(config->ctrl_interface);
2138         os_free(config->ctrl_interface_group);
2139         os_free(config->opensc_engine_path);
2140         os_free(config->pkcs11_engine_path);
2141         os_free(config->pkcs11_module_path);
2142         os_free(config->openssl_ciphers);
2143         os_free(config->pcsc_reader);
2144         str_clear_free(config->pcsc_pin);
2145         os_free(config->driver_param);
2146         os_free(config->device_name);
2147         os_free(config->manufacturer);
2148         os_free(config->model_name);
2149         os_free(config->model_number);
2150         os_free(config->serial_number);
2151         os_free(config->config_methods);
2152         os_free(config->p2p_ssid_postfix);
2153         os_free(config->pssid);
2154         os_free(config->p2p_pref_chan);
2155         os_free(config->p2p_no_go_freq.range);
2156         os_free(config->autoscan);
2157         os_free(config->freq_list);
2158         wpabuf_free(config->wps_nfc_dh_pubkey);
2159         wpabuf_free(config->wps_nfc_dh_privkey);
2160         wpabuf_free(config->wps_nfc_dev_pw);
2161         os_free(config->ext_password_backend);
2162         os_free(config->sae_groups);
2163         wpabuf_free(config->ap_vendor_elements);
2164         os_free(config->osu_dir);
2165         os_free(config->wowlan_triggers);
2166         os_free(config);
2167 }
2168
2169
2170 /**
2171  * wpa_config_foreach_network - Iterate over each configured network
2172  * @config: Configuration data from wpa_config_read()
2173  * @func: Callback function to process each network
2174  * @arg: Opaque argument to pass to callback function
2175  *
2176  * Iterate over the set of configured networks calling the specified
2177  * function for each item. We guard against callbacks removing the
2178  * supplied network.
2179  */
2180 void wpa_config_foreach_network(struct wpa_config *config,
2181                                 void (*func)(void *, struct wpa_ssid *),
2182                                 void *arg)
2183 {
2184         struct wpa_ssid *ssid, *next;
2185
2186         ssid = config->ssid;
2187         while (ssid) {
2188                 next = ssid->next;
2189                 func(arg, ssid);
2190                 ssid = next;
2191         }
2192 }
2193
2194
2195 /**
2196  * wpa_config_get_network - Get configured network based on id
2197  * @config: Configuration data from wpa_config_read()
2198  * @id: Unique network id to search for
2199  * Returns: Network configuration or %NULL if not found
2200  */
2201 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2202 {
2203         struct wpa_ssid *ssid;
2204
2205         ssid = config->ssid;
2206         while (ssid) {
2207                 if (id == ssid->id)
2208                         break;
2209                 ssid = ssid->next;
2210         }
2211
2212         return ssid;
2213 }
2214
2215
2216 /**
2217  * wpa_config_add_network - Add a new network with empty configuration
2218  * @config: Configuration data from wpa_config_read()
2219  * Returns: The new network configuration or %NULL if operation failed
2220  */
2221 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2222 {
2223         int id;
2224         struct wpa_ssid *ssid, *last = NULL;
2225
2226         id = -1;
2227         ssid = config->ssid;
2228         while (ssid) {
2229                 if (ssid->id > id)
2230                         id = ssid->id;
2231                 last = ssid;
2232                 ssid = ssid->next;
2233         }
2234         id++;
2235
2236         ssid = os_zalloc(sizeof(*ssid));
2237         if (ssid == NULL)
2238                 return NULL;
2239         ssid->id = id;
2240         dl_list_init(&ssid->psk_list);
2241         if (last)
2242                 last->next = ssid;
2243         else
2244                 config->ssid = ssid;
2245
2246         wpa_config_update_prio_list(config);
2247
2248         return ssid;
2249 }
2250
2251
2252 /**
2253  * wpa_config_remove_network - Remove a configured network based on id
2254  * @config: Configuration data from wpa_config_read()
2255  * @id: Unique network id to search for
2256  * Returns: 0 on success, or -1 if the network was not found
2257  */
2258 int wpa_config_remove_network(struct wpa_config *config, int id)
2259 {
2260         struct wpa_ssid *ssid, *prev = NULL;
2261
2262         ssid = config->ssid;
2263         while (ssid) {
2264                 if (id == ssid->id)
2265                         break;
2266                 prev = ssid;
2267                 ssid = ssid->next;
2268         }
2269
2270         if (ssid == NULL)
2271                 return -1;
2272
2273         if (prev)
2274                 prev->next = ssid->next;
2275         else
2276                 config->ssid = ssid->next;
2277
2278         wpa_config_update_prio_list(config);
2279         wpa_config_free_ssid(ssid);
2280         return 0;
2281 }
2282
2283
2284 /**
2285  * wpa_config_set_network_defaults - Set network default values
2286  * @ssid: Pointer to network configuration data
2287  */
2288 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2289 {
2290         ssid->proto = DEFAULT_PROTO;
2291         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2292         ssid->group_cipher = DEFAULT_GROUP;
2293         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2294         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2295 #ifdef IEEE8021X_EAPOL
2296         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2297         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2298         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2299         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2300 #endif /* IEEE8021X_EAPOL */
2301 #ifdef CONFIG_MESH
2302         ssid->mesh_ht_mode = DEFAULT_MESH_HT_MODE;
2303 #endif /* CONFIG_MESH */
2304 #ifdef CONFIG_HT_OVERRIDES
2305         ssid->disable_ht = DEFAULT_DISABLE_HT;
2306         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2307         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2308         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2309         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2310         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2311         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2312 #endif /* CONFIG_HT_OVERRIDES */
2313 #ifdef CONFIG_VHT_OVERRIDES
2314         ssid->vht_rx_mcs_nss_1 = -1;
2315         ssid->vht_rx_mcs_nss_2 = -1;
2316         ssid->vht_rx_mcs_nss_3 = -1;
2317         ssid->vht_rx_mcs_nss_4 = -1;
2318         ssid->vht_rx_mcs_nss_5 = -1;
2319         ssid->vht_rx_mcs_nss_6 = -1;
2320         ssid->vht_rx_mcs_nss_7 = -1;
2321         ssid->vht_rx_mcs_nss_8 = -1;
2322         ssid->vht_tx_mcs_nss_1 = -1;
2323         ssid->vht_tx_mcs_nss_2 = -1;
2324         ssid->vht_tx_mcs_nss_3 = -1;
2325         ssid->vht_tx_mcs_nss_4 = -1;
2326         ssid->vht_tx_mcs_nss_5 = -1;
2327         ssid->vht_tx_mcs_nss_6 = -1;
2328         ssid->vht_tx_mcs_nss_7 = -1;
2329         ssid->vht_tx_mcs_nss_8 = -1;
2330 #endif /* CONFIG_VHT_OVERRIDES */
2331         ssid->proactive_key_caching = -1;
2332 #ifdef CONFIG_IEEE80211W
2333         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2334 #endif /* CONFIG_IEEE80211W */
2335         ssid->mac_addr = -1;
2336 }
2337
2338
2339 /**
2340  * wpa_config_set - Set a variable in network configuration
2341  * @ssid: Pointer to network configuration data
2342  * @var: Variable name, e.g., "ssid"
2343  * @value: Variable value
2344  * @line: Line number in configuration file or 0 if not used
2345  * Returns: 0 on success, -1 on failure
2346  *
2347  * This function can be used to set network configuration variables based on
2348  * both the configuration file and management interface input. The value
2349  * parameter must be in the same format as the text-based configuration file is
2350  * using. For example, strings are using double quotation marks.
2351  */
2352 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2353                    int line)
2354 {
2355         size_t i;
2356         int ret = 0;
2357
2358         if (ssid == NULL || var == NULL || value == NULL)
2359                 return -1;
2360
2361         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2362                 const struct parse_data *field = &ssid_fields[i];
2363                 if (os_strcmp(var, field->name) != 0)
2364                         continue;
2365
2366                 if (field->parser(field, ssid, line, value)) {
2367                         if (line) {
2368                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2369                                            "parse %s '%s'.", line, var, value);
2370                         }
2371                         ret = -1;
2372                 }
2373                 break;
2374         }
2375         if (i == NUM_SSID_FIELDS) {
2376                 if (line) {
2377                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2378                                    "'%s'.", line, var);
2379                 }
2380                 ret = -1;
2381         }
2382
2383         return ret;
2384 }
2385
2386
2387 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2388                           const char *value)
2389 {
2390         size_t len;
2391         char *buf;
2392         int ret;
2393
2394         len = os_strlen(value);
2395         buf = os_malloc(len + 3);
2396         if (buf == NULL)
2397                 return -1;
2398         buf[0] = '"';
2399         os_memcpy(buf + 1, value, len);
2400         buf[len + 1] = '"';
2401         buf[len + 2] = '\0';
2402         ret = wpa_config_set(ssid, var, buf, 0);
2403         os_free(buf);
2404         return ret;
2405 }
2406
2407
2408 /**
2409  * wpa_config_get_all - Get all options from network configuration
2410  * @ssid: Pointer to network configuration data
2411  * @get_keys: Determines if keys/passwords will be included in returned list
2412  *      (if they may be exported)
2413  * Returns: %NULL terminated list of all set keys and their values in the form
2414  * of [key1, val1, key2, val2, ... , NULL]
2415  *
2416  * This function can be used to get list of all configured network properties.
2417  * The caller is responsible for freeing the returned list and all its
2418  * elements.
2419  */
2420 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2421 {
2422         const struct parse_data *field;
2423         char *key, *value;
2424         size_t i;
2425         char **props;
2426         int fields_num;
2427
2428         get_keys = get_keys && ssid->export_keys;
2429
2430         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2431         if (!props)
2432                 return NULL;
2433
2434         fields_num = 0;
2435         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2436                 field = &ssid_fields[i];
2437                 if (field->key_data && !get_keys)
2438                         continue;
2439                 value = field->writer(field, ssid);
2440                 if (value == NULL)
2441                         continue;
2442                 if (os_strlen(value) == 0) {
2443                         os_free(value);
2444                         continue;
2445                 }
2446
2447                 key = os_strdup(field->name);
2448                 if (key == NULL) {
2449                         os_free(value);
2450                         goto err;
2451                 }
2452
2453                 props[fields_num * 2] = key;
2454                 props[fields_num * 2 + 1] = value;
2455
2456                 fields_num++;
2457         }
2458
2459         return props;
2460
2461 err:
2462         value = *props;
2463         while (value)
2464                 os_free(value++);
2465         os_free(props);
2466         return NULL;
2467 }
2468
2469
2470 #ifndef NO_CONFIG_WRITE
2471 /**
2472  * wpa_config_get - Get a variable in network configuration
2473  * @ssid: Pointer to network configuration data
2474  * @var: Variable name, e.g., "ssid"
2475  * Returns: Value of the variable or %NULL on failure
2476  *
2477  * This function can be used to get network configuration variables. The
2478  * returned value is a copy of the configuration variable in text format, i.e,.
2479  * the same format that the text-based configuration file and wpa_config_set()
2480  * are using for the value. The caller is responsible for freeing the returned
2481  * value.
2482  */
2483 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2484 {
2485         size_t i;
2486
2487         if (ssid == NULL || var == NULL)
2488                 return NULL;
2489
2490         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2491                 const struct parse_data *field = &ssid_fields[i];
2492                 if (os_strcmp(var, field->name) == 0)
2493                         return field->writer(field, ssid);
2494         }
2495
2496         return NULL;
2497 }
2498
2499
2500 /**
2501  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2502  * @ssid: Pointer to network configuration data
2503  * @var: Variable name, e.g., "ssid"
2504  * Returns: Value of the variable or %NULL on failure
2505  *
2506  * This function can be used to get network configuration variable like
2507  * wpa_config_get(). The only difference is that this functions does not expose
2508  * key/password material from the configuration. In case a key/password field
2509  * is requested, the returned value is an empty string or %NULL if the variable
2510  * is not set or "*" if the variable is set (regardless of its value). The
2511  * returned value is a copy of the configuration variable in text format, i.e,.
2512  * the same format that the text-based configuration file and wpa_config_set()
2513  * are using for the value. The caller is responsible for freeing the returned
2514  * value.
2515  */
2516 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2517 {
2518         size_t i;
2519
2520         if (ssid == NULL || var == NULL)
2521                 return NULL;
2522
2523         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2524                 const struct parse_data *field = &ssid_fields[i];
2525                 if (os_strcmp(var, field->name) == 0) {
2526                         char *res = field->writer(field, ssid);
2527                         if (field->key_data) {
2528                                 if (res && res[0]) {
2529                                         wpa_printf(MSG_DEBUG, "Do not allow "
2530                                                    "key_data field to be "
2531                                                    "exposed");
2532                                         str_clear_free(res);
2533                                         return os_strdup("*");
2534                                 }
2535
2536                                 os_free(res);
2537                                 return NULL;
2538                         }
2539                         return res;
2540                 }
2541         }
2542
2543         return NULL;
2544 }
2545 #endif /* NO_CONFIG_WRITE */
2546
2547
2548 /**
2549  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2550  * @ssid: Pointer to network configuration data
2551  *
2552  * This function must be called to update WPA PSK when either SSID or the
2553  * passphrase has changed for the network configuration.
2554  */
2555 void wpa_config_update_psk(struct wpa_ssid *ssid)
2556 {
2557 #ifndef CONFIG_NO_PBKDF2
2558         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2559                     ssid->psk, PMK_LEN);
2560         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2561                         ssid->psk, PMK_LEN);
2562         ssid->psk_set = 1;
2563 #endif /* CONFIG_NO_PBKDF2 */
2564 }
2565
2566
2567 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2568                                               const char *value)
2569 {
2570         u8 *proto;
2571         int **port;
2572         int *ports, *nports;
2573         const char *pos;
2574         unsigned int num_ports;
2575
2576         proto = os_realloc_array(cred->req_conn_capab_proto,
2577                                  cred->num_req_conn_capab + 1, sizeof(u8));
2578         if (proto == NULL)
2579                 return -1;
2580         cred->req_conn_capab_proto = proto;
2581
2582         port = os_realloc_array(cred->req_conn_capab_port,
2583                                 cred->num_req_conn_capab + 1, sizeof(int *));
2584         if (port == NULL)
2585                 return -1;
2586         cred->req_conn_capab_port = port;
2587
2588         proto[cred->num_req_conn_capab] = atoi(value);
2589
2590         pos = os_strchr(value, ':');
2591         if (pos == NULL) {
2592                 port[cred->num_req_conn_capab] = NULL;
2593                 cred->num_req_conn_capab++;
2594                 return 0;
2595         }
2596         pos++;
2597
2598         ports = NULL;
2599         num_ports = 0;
2600
2601         while (*pos) {
2602                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2603                 if (nports == NULL) {
2604                         os_free(ports);
2605                         return -1;
2606                 }
2607                 ports = nports;
2608                 ports[num_ports++] = atoi(pos);
2609
2610                 pos = os_strchr(pos, ',');
2611                 if (pos == NULL)
2612                         break;
2613                 pos++;
2614         }
2615
2616         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2617         if (nports == NULL) {
2618                 os_free(ports);
2619                 return -1;
2620         }
2621         ports = nports;
2622         ports[num_ports] = -1;
2623
2624         port[cred->num_req_conn_capab] = ports;
2625         cred->num_req_conn_capab++;
2626         return 0;
2627 }
2628
2629
2630 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2631                         const char *value, int line)
2632 {
2633         char *val;
2634         size_t len;
2635
2636         if (os_strcmp(var, "temporary") == 0) {
2637                 cred->temporary = atoi(value);
2638                 return 0;
2639         }
2640
2641         if (os_strcmp(var, "priority") == 0) {
2642                 cred->priority = atoi(value);
2643                 return 0;
2644         }
2645
2646         if (os_strcmp(var, "sp_priority") == 0) {
2647                 int prio = atoi(value);
2648                 if (prio < 0 || prio > 255)
2649                         return -1;
2650                 cred->sp_priority = prio;
2651                 return 0;
2652         }
2653
2654         if (os_strcmp(var, "pcsc") == 0) {
2655                 cred->pcsc = atoi(value);
2656                 return 0;
2657         }
2658
2659         if (os_strcmp(var, "eap") == 0) {
2660                 struct eap_method_type method;
2661                 method.method = eap_peer_get_type(value, &method.vendor);
2662                 if (method.vendor == EAP_VENDOR_IETF &&
2663                     method.method == EAP_TYPE_NONE) {
2664                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2665                                    "for a credential", line, value);
2666                         return -1;
2667                 }
2668                 os_free(cred->eap_method);
2669                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2670                 if (cred->eap_method == NULL)
2671                         return -1;
2672                 os_memcpy(cred->eap_method, &method, sizeof(method));
2673                 return 0;
2674         }
2675
2676         if (os_strcmp(var, "password") == 0 &&
2677             os_strncmp(value, "ext:", 4) == 0) {
2678                 str_clear_free(cred->password);
2679                 cred->password = os_strdup(value);
2680                 cred->ext_password = 1;
2681                 return 0;
2682         }
2683
2684         if (os_strcmp(var, "update_identifier") == 0) {
2685                 cred->update_identifier = atoi(value);
2686                 return 0;
2687         }
2688
2689         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2690                 cred->min_dl_bandwidth_home = atoi(value);
2691                 return 0;
2692         }
2693
2694         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2695                 cred->min_ul_bandwidth_home = atoi(value);
2696                 return 0;
2697         }
2698
2699         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2700                 cred->min_dl_bandwidth_roaming = atoi(value);
2701                 return 0;
2702         }
2703
2704         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2705                 cred->min_ul_bandwidth_roaming = atoi(value);
2706                 return 0;
2707         }
2708
2709         if (os_strcmp(var, "max_bss_load") == 0) {
2710                 cred->max_bss_load = atoi(value);
2711                 return 0;
2712         }
2713
2714         if (os_strcmp(var, "req_conn_capab") == 0)
2715                 return wpa_config_set_cred_req_conn_capab(cred, value);
2716
2717         if (os_strcmp(var, "ocsp") == 0) {
2718                 cred->ocsp = atoi(value);
2719                 return 0;
2720         }
2721
2722         if (os_strcmp(var, "sim_num") == 0) {
2723                 cred->sim_num = atoi(value);
2724                 return 0;
2725         }
2726
2727         val = wpa_config_parse_string(value, &len);
2728         if (val == NULL) {
2729                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2730                            "value '%s'.", line, var, value);
2731                 return -1;
2732         }
2733
2734         if (os_strcmp(var, "realm") == 0) {
2735                 os_free(cred->realm);
2736                 cred->realm = val;
2737                 return 0;
2738         }
2739
2740         if (os_strcmp(var, "username") == 0) {
2741                 str_clear_free(cred->username);
2742                 cred->username = val;
2743                 return 0;
2744         }
2745
2746         if (os_strcmp(var, "password") == 0) {
2747                 str_clear_free(cred->password);
2748                 cred->password = val;
2749                 cred->ext_password = 0;
2750                 return 0;
2751         }
2752
2753         if (os_strcmp(var, "ca_cert") == 0) {
2754                 os_free(cred->ca_cert);
2755                 cred->ca_cert = val;
2756                 return 0;
2757         }
2758
2759         if (os_strcmp(var, "client_cert") == 0) {
2760                 os_free(cred->client_cert);
2761                 cred->client_cert = val;
2762                 return 0;
2763         }
2764
2765         if (os_strcmp(var, "private_key") == 0) {
2766                 os_free(cred->private_key);
2767                 cred->private_key = val;
2768                 return 0;
2769         }
2770
2771         if (os_strcmp(var, "private_key_passwd") == 0) {
2772                 str_clear_free(cred->private_key_passwd);
2773                 cred->private_key_passwd = val;
2774                 return 0;
2775         }
2776
2777         if (os_strcmp(var, "imsi") == 0) {
2778                 os_free(cred->imsi);
2779                 cred->imsi = val;
2780                 return 0;
2781         }
2782
2783         if (os_strcmp(var, "milenage") == 0) {
2784                 str_clear_free(cred->milenage);
2785                 cred->milenage = val;
2786                 return 0;
2787         }
2788
2789         if (os_strcmp(var, "domain_suffix_match") == 0) {
2790                 os_free(cred->domain_suffix_match);
2791                 cred->domain_suffix_match = val;
2792                 return 0;
2793         }
2794
2795         if (os_strcmp(var, "domain") == 0) {
2796                 char **new_domain;
2797                 new_domain = os_realloc_array(cred->domain,
2798                                               cred->num_domain + 1,
2799                                               sizeof(char *));
2800                 if (new_domain == NULL) {
2801                         os_free(val);
2802                         return -1;
2803                 }
2804                 new_domain[cred->num_domain++] = val;
2805                 cred->domain = new_domain;
2806                 return 0;
2807         }
2808
2809         if (os_strcmp(var, "phase1") == 0) {
2810                 os_free(cred->phase1);
2811                 cred->phase1 = val;
2812                 return 0;
2813         }
2814
2815         if (os_strcmp(var, "phase2") == 0) {
2816                 os_free(cred->phase2);
2817                 cred->phase2 = val;
2818                 return 0;
2819         }
2820
2821         if (os_strcmp(var, "roaming_consortium") == 0) {
2822                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2823                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2824                                    "roaming_consortium length %d (3..15 "
2825                                    "expected)", line, (int) len);
2826                         os_free(val);
2827                         return -1;
2828                 }
2829                 os_memcpy(cred->roaming_consortium, val, len);
2830                 cred->roaming_consortium_len = len;
2831                 os_free(val);
2832                 return 0;
2833         }
2834
2835         if (os_strcmp(var, "required_roaming_consortium") == 0) {
2836                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2837                 {
2838                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2839                                    "required_roaming_consortium length %d "
2840                                    "(3..15 expected)", line, (int) len);
2841                         os_free(val);
2842                         return -1;
2843                 }
2844                 os_memcpy(cred->required_roaming_consortium, val, len);
2845                 cred->required_roaming_consortium_len = len;
2846                 os_free(val);
2847                 return 0;
2848         }
2849
2850         if (os_strcmp(var, "excluded_ssid") == 0) {
2851                 struct excluded_ssid *e;
2852
2853                 if (len > MAX_SSID_LEN) {
2854                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2855                                    "excluded_ssid length %d", line, (int) len);
2856                         os_free(val);
2857                         return -1;
2858                 }
2859
2860                 e = os_realloc_array(cred->excluded_ssid,
2861                                      cred->num_excluded_ssid + 1,
2862                                      sizeof(struct excluded_ssid));
2863                 if (e == NULL) {
2864                         os_free(val);
2865                         return -1;
2866                 }
2867                 cred->excluded_ssid = e;
2868
2869                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2870                 os_memcpy(e->ssid, val, len);
2871                 e->ssid_len = len;
2872
2873                 os_free(val);
2874
2875                 return 0;
2876         }
2877
2878         if (os_strcmp(var, "roaming_partner") == 0) {
2879                 struct roaming_partner *p;
2880                 char *pos;
2881
2882                 p = os_realloc_array(cred->roaming_partner,
2883                                      cred->num_roaming_partner + 1,
2884                                      sizeof(struct roaming_partner));
2885                 if (p == NULL) {
2886                         os_free(val);
2887                         return -1;
2888                 }
2889                 cred->roaming_partner = p;
2890
2891                 p = &cred->roaming_partner[cred->num_roaming_partner];
2892
2893                 pos = os_strchr(val, ',');
2894                 if (pos == NULL) {
2895                         os_free(val);
2896                         return -1;
2897                 }
2898                 *pos++ = '\0';
2899                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
2900                         os_free(val);
2901                         return -1;
2902                 }
2903                 os_memcpy(p->fqdn, val, pos - val);
2904
2905                 p->exact_match = atoi(pos);
2906
2907                 pos = os_strchr(pos, ',');
2908                 if (pos == NULL) {
2909                         os_free(val);
2910                         return -1;
2911                 }
2912                 *pos++ = '\0';
2913
2914                 p->priority = atoi(pos);
2915
2916                 pos = os_strchr(pos, ',');
2917                 if (pos == NULL) {
2918                         os_free(val);
2919                         return -1;
2920                 }
2921                 *pos++ = '\0';
2922
2923                 if (os_strlen(pos) >= sizeof(p->country)) {
2924                         os_free(val);
2925                         return -1;
2926                 }
2927                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
2928
2929                 cred->num_roaming_partner++;
2930                 os_free(val);
2931
2932                 return 0;
2933         }
2934
2935         if (os_strcmp(var, "provisioning_sp") == 0) {
2936                 os_free(cred->provisioning_sp);
2937                 cred->provisioning_sp = val;
2938                 return 0;
2939         }
2940
2941         if (line) {
2942                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2943                            line, var);
2944         }
2945
2946         os_free(val);
2947
2948         return -1;
2949 }
2950
2951
2952 static char * alloc_int_str(int val)
2953 {
2954         char *buf;
2955
2956         buf = os_malloc(20);
2957         if (buf == NULL)
2958                 return NULL;
2959         os_snprintf(buf, 20, "%d", val);
2960         return buf;
2961 }
2962
2963
2964 static char * alloc_strdup(const char *str)
2965 {
2966         if (str == NULL)
2967                 return NULL;
2968         return os_strdup(str);
2969 }
2970
2971
2972 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
2973 {
2974         if (os_strcmp(var, "temporary") == 0)
2975                 return alloc_int_str(cred->temporary);
2976
2977         if (os_strcmp(var, "priority") == 0)
2978                 return alloc_int_str(cred->priority);
2979
2980         if (os_strcmp(var, "sp_priority") == 0)
2981                 return alloc_int_str(cred->sp_priority);
2982
2983         if (os_strcmp(var, "pcsc") == 0)
2984                 return alloc_int_str(cred->pcsc);
2985
2986         if (os_strcmp(var, "eap") == 0) {
2987                 if (!cred->eap_method)
2988                         return NULL;
2989                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
2990                                                  cred->eap_method[0].method));
2991         }
2992
2993         if (os_strcmp(var, "update_identifier") == 0)
2994                 return alloc_int_str(cred->update_identifier);
2995
2996         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
2997                 return alloc_int_str(cred->min_dl_bandwidth_home);
2998
2999         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3000                 return alloc_int_str(cred->min_ul_bandwidth_home);
3001
3002         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3003                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3004
3005         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3006                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3007
3008         if (os_strcmp(var, "max_bss_load") == 0)
3009                 return alloc_int_str(cred->max_bss_load);
3010
3011         if (os_strcmp(var, "req_conn_capab") == 0) {
3012                 unsigned int i;
3013                 char *buf, *end, *pos;
3014                 int ret;
3015
3016                 if (!cred->num_req_conn_capab)
3017                         return NULL;
3018
3019                 buf = os_malloc(4000);
3020                 if (buf == NULL)
3021                         return NULL;
3022                 pos = buf;
3023                 end = pos + 4000;
3024                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3025                         int *ports;
3026
3027                         ret = os_snprintf(pos, end - pos, "%s%u",
3028                                           i > 0 ? "\n" : "",
3029                                           cred->req_conn_capab_proto[i]);
3030                         if (ret < 0 || ret >= end - pos)
3031                                 return buf;
3032                         pos += ret;
3033
3034                         ports = cred->req_conn_capab_port[i];
3035                         if (ports) {
3036                                 int j;
3037                                 for (j = 0; ports[j] != -1; j++) {
3038                                         ret = os_snprintf(pos, end - pos,
3039                                                           "%s%d",
3040                                                           j > 0 ? "," : ":",
3041                                                           ports[j]);
3042                                         if (ret < 0 || ret >= end - pos)
3043                                                 return buf;
3044                                         pos += ret;
3045                                 }
3046                         }
3047                 }
3048
3049                 return buf;
3050         }
3051
3052         if (os_strcmp(var, "ocsp") == 0)
3053                 return alloc_int_str(cred->ocsp);
3054
3055         if (os_strcmp(var, "realm") == 0)
3056                 return alloc_strdup(cred->realm);
3057
3058         if (os_strcmp(var, "username") == 0)
3059                 return alloc_strdup(cred->username);
3060
3061         if (os_strcmp(var, "password") == 0) {
3062                 if (!cred->password)
3063                         return NULL;
3064                 return alloc_strdup("*");
3065         }
3066
3067         if (os_strcmp(var, "ca_cert") == 0)
3068                 return alloc_strdup(cred->ca_cert);
3069
3070         if (os_strcmp(var, "client_cert") == 0)
3071                 return alloc_strdup(cred->client_cert);
3072
3073         if (os_strcmp(var, "private_key") == 0)
3074                 return alloc_strdup(cred->private_key);
3075
3076         if (os_strcmp(var, "private_key_passwd") == 0) {
3077                 if (!cred->private_key_passwd)
3078                         return NULL;
3079                 return alloc_strdup("*");
3080         }
3081
3082         if (os_strcmp(var, "imsi") == 0)
3083                 return alloc_strdup(cred->imsi);
3084
3085         if (os_strcmp(var, "milenage") == 0) {
3086                 if (!(cred->milenage))
3087                         return NULL;
3088                 return alloc_strdup("*");
3089         }
3090
3091         if (os_strcmp(var, "domain_suffix_match") == 0)
3092                 return alloc_strdup(cred->domain_suffix_match);
3093
3094         if (os_strcmp(var, "domain") == 0) {
3095                 unsigned int i;
3096                 char *buf, *end, *pos;
3097                 int ret;
3098
3099                 if (!cred->num_domain)
3100                         return NULL;
3101
3102                 buf = os_malloc(4000);
3103                 if (buf == NULL)
3104                         return NULL;
3105                 pos = buf;
3106                 end = pos + 4000;
3107
3108                 for (i = 0; i < cred->num_domain; i++) {
3109                         ret = os_snprintf(pos, end - pos, "%s%s",
3110                                           i > 0 ? "\n" : "", cred->domain[i]);
3111                         if (ret < 0 || ret >= end - pos)
3112                                 return buf;
3113                         pos += ret;
3114                 }
3115
3116                 return buf;
3117         }
3118
3119         if (os_strcmp(var, "phase1") == 0)
3120                 return alloc_strdup(cred->phase1);
3121
3122         if (os_strcmp(var, "phase2") == 0)
3123                 return alloc_strdup(cred->phase2);
3124
3125         if (os_strcmp(var, "roaming_consortium") == 0) {
3126                 size_t buflen;
3127                 char *buf;
3128
3129                 if (!cred->roaming_consortium_len)
3130                         return NULL;
3131                 buflen = cred->roaming_consortium_len * 2 + 1;
3132                 buf = os_malloc(buflen);
3133                 if (buf == NULL)
3134                         return NULL;
3135                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3136                                  cred->roaming_consortium_len);
3137                 return buf;
3138         }
3139
3140         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3141                 size_t buflen;
3142                 char *buf;
3143
3144                 if (!cred->required_roaming_consortium_len)
3145                         return NULL;
3146                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3147                 buf = os_malloc(buflen);
3148                 if (buf == NULL)
3149                         return NULL;
3150                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3151                                  cred->required_roaming_consortium_len);
3152                 return buf;
3153         }
3154
3155         if (os_strcmp(var, "excluded_ssid") == 0) {
3156                 unsigned int i;
3157                 char *buf, *end, *pos;
3158
3159                 if (!cred->num_excluded_ssid)
3160                         return NULL;
3161
3162                 buf = os_malloc(4000);
3163                 if (buf == NULL)
3164                         return NULL;
3165                 pos = buf;
3166                 end = pos + 4000;
3167
3168                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3169                         struct excluded_ssid *e;
3170                         int ret;
3171
3172                         e = &cred->excluded_ssid[i];
3173                         ret = os_snprintf(pos, end - pos, "%s%s",
3174                                           i > 0 ? "\n" : "",
3175                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3176                         if (ret < 0 || ret >= end - pos)
3177                                 return buf;
3178                         pos += ret;
3179                 }
3180
3181                 return buf;
3182         }
3183
3184         if (os_strcmp(var, "roaming_partner") == 0) {
3185                 unsigned int i;
3186                 char *buf, *end, *pos;
3187
3188                 if (!cred->num_roaming_partner)
3189                         return NULL;
3190
3191                 buf = os_malloc(4000);
3192                 if (buf == NULL)
3193                         return NULL;
3194                 pos = buf;
3195                 end = pos + 4000;
3196
3197                 for (i = 0; i < cred->num_roaming_partner; i++) {
3198                         struct roaming_partner *p;
3199                         int ret;
3200
3201                         p = &cred->roaming_partner[i];
3202                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3203                                           i > 0 ? "\n" : "",
3204                                           p->fqdn, p->exact_match, p->priority,
3205                                           p->country);
3206                         if (ret < 0 || ret >= end - pos)
3207                                 return buf;
3208                         pos += ret;
3209                 }
3210
3211                 return buf;
3212         }
3213
3214         if (os_strcmp(var, "provisioning_sp") == 0)
3215                 return alloc_strdup(cred->provisioning_sp);
3216
3217         return NULL;
3218 }
3219
3220
3221 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3222 {
3223         struct wpa_cred *cred;
3224
3225         cred = config->cred;
3226         while (cred) {
3227                 if (id == cred->id)
3228                         break;
3229                 cred = cred->next;
3230         }
3231
3232         return cred;
3233 }
3234
3235
3236 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3237 {
3238         int id;
3239         struct wpa_cred *cred, *last = NULL;
3240
3241         id = -1;
3242         cred = config->cred;
3243         while (cred) {
3244                 if (cred->id > id)
3245                         id = cred->id;
3246                 last = cred;
3247                 cred = cred->next;
3248         }
3249         id++;
3250
3251         cred = os_zalloc(sizeof(*cred));
3252         if (cred == NULL)
3253                 return NULL;
3254         cred->id = id;
3255         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3256         if (last)
3257                 last->next = cred;
3258         else
3259                 config->cred = cred;
3260
3261         return cred;
3262 }
3263
3264
3265 int wpa_config_remove_cred(struct wpa_config *config, int id)
3266 {
3267         struct wpa_cred *cred, *prev = NULL;
3268
3269         cred = config->cred;
3270         while (cred) {
3271                 if (id == cred->id)
3272                         break;
3273                 prev = cred;
3274                 cred = cred->next;
3275         }
3276
3277         if (cred == NULL)
3278                 return -1;
3279
3280         if (prev)
3281                 prev->next = cred->next;
3282         else
3283                 config->cred = cred->next;
3284
3285         wpa_config_free_cred(cred);
3286         return 0;
3287 }
3288
3289
3290 #ifndef CONFIG_NO_CONFIG_BLOBS
3291 /**
3292  * wpa_config_get_blob - Get a named configuration blob
3293  * @config: Configuration data from wpa_config_read()
3294  * @name: Name of the blob
3295  * Returns: Pointer to blob data or %NULL if not found
3296  */
3297 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3298                                                    const char *name)
3299 {
3300         struct wpa_config_blob *blob = config->blobs;
3301
3302         while (blob) {
3303                 if (os_strcmp(blob->name, name) == 0)
3304                         return blob;
3305                 blob = blob->next;
3306         }
3307         return NULL;
3308 }
3309
3310
3311 /**
3312  * wpa_config_set_blob - Set or add a named configuration blob
3313  * @config: Configuration data from wpa_config_read()
3314  * @blob: New value for the blob
3315  *
3316  * Adds a new configuration blob or replaces the current value of an existing
3317  * blob.
3318  */
3319 void wpa_config_set_blob(struct wpa_config *config,
3320                          struct wpa_config_blob *blob)
3321 {
3322         wpa_config_remove_blob(config, blob->name);
3323         blob->next = config->blobs;
3324         config->blobs = blob;
3325 }
3326
3327
3328 /**
3329  * wpa_config_free_blob - Free blob data
3330  * @blob: Pointer to blob to be freed
3331  */
3332 void wpa_config_free_blob(struct wpa_config_blob *blob)
3333 {
3334         if (blob) {
3335                 os_free(blob->name);
3336                 bin_clear_free(blob->data, blob->len);
3337                 os_free(blob);
3338         }
3339 }
3340
3341
3342 /**
3343  * wpa_config_remove_blob - Remove a named configuration blob
3344  * @config: Configuration data from wpa_config_read()
3345  * @name: Name of the blob to remove
3346  * Returns: 0 if blob was removed or -1 if blob was not found
3347  */
3348 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3349 {
3350         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3351
3352         while (pos) {
3353                 if (os_strcmp(pos->name, name) == 0) {
3354                         if (prev)
3355                                 prev->next = pos->next;
3356                         else
3357                                 config->blobs = pos->next;
3358                         wpa_config_free_blob(pos);
3359                         return 0;
3360                 }
3361                 prev = pos;
3362                 pos = pos->next;
3363         }
3364
3365         return -1;
3366 }
3367 #endif /* CONFIG_NO_CONFIG_BLOBS */
3368
3369
3370 /**
3371  * wpa_config_alloc_empty - Allocate an empty configuration
3372  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3373  * socket
3374  * @driver_param: Driver parameters
3375  * Returns: Pointer to allocated configuration data or %NULL on failure
3376  */
3377 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3378                                            const char *driver_param)
3379 {
3380         struct wpa_config *config;
3381         const int aCWmin = 4, aCWmax = 10;
3382         const struct hostapd_wmm_ac_params ac_bk =
3383                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3384         const struct hostapd_wmm_ac_params ac_be =
3385                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3386         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3387                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3388         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3389                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3390
3391         config = os_zalloc(sizeof(*config));
3392         if (config == NULL)
3393                 return NULL;
3394         config->eapol_version = DEFAULT_EAPOL_VERSION;
3395         config->ap_scan = DEFAULT_AP_SCAN;
3396         config->user_mpm = DEFAULT_USER_MPM;
3397         config->fast_reauth = DEFAULT_FAST_REAUTH;
3398         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3399         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3400         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3401         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3402         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3403         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3404         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3405         config->max_num_sta = DEFAULT_MAX_NUM_STA;
3406         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3407         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3408         config->wmm_ac_params[0] = ac_be;
3409         config->wmm_ac_params[1] = ac_bk;
3410         config->wmm_ac_params[2] = ac_vi;
3411         config->wmm_ac_params[3] = ac_vo;
3412         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3413         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3414         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3415
3416         if (ctrl_interface)
3417                 config->ctrl_interface = os_strdup(ctrl_interface);
3418         if (driver_param)
3419                 config->driver_param = os_strdup(driver_param);
3420
3421         return config;
3422 }
3423
3424
3425 #ifndef CONFIG_NO_STDOUT_DEBUG
3426 /**
3427  * wpa_config_debug_dump_networks - Debug dump of configured networks
3428  * @config: Configuration data from wpa_config_read()
3429  */
3430 void wpa_config_debug_dump_networks(struct wpa_config *config)
3431 {
3432         int prio;
3433         struct wpa_ssid *ssid;
3434
3435         for (prio = 0; prio < config->num_prio; prio++) {
3436                 ssid = config->pssid[prio];
3437                 wpa_printf(MSG_DEBUG, "Priority group %d",
3438                            ssid->priority);
3439                 while (ssid) {
3440                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3441                                    ssid->id,
3442                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3443                         ssid = ssid->pnext;
3444                 }
3445         }
3446 }
3447 #endif /* CONFIG_NO_STDOUT_DEBUG */
3448
3449
3450 struct global_parse_data {
3451         char *name;
3452         int (*parser)(const struct global_parse_data *data,
3453                       struct wpa_config *config, int line, const char *value);
3454         void *param1, *param2, *param3;
3455         unsigned int changed_flag;
3456 };
3457
3458
3459 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3460                                        struct wpa_config *config, int line,
3461                                        const char *pos)
3462 {
3463         int val, *dst;
3464         char *end;
3465
3466         dst = (int *) (((u8 *) config) + (long) data->param1);
3467         val = strtol(pos, &end, 0);
3468         if (*end) {
3469                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3470                            line, pos);
3471                 return -1;
3472         }
3473         *dst = val;
3474
3475         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3476
3477         if (data->param2 && *dst < (long) data->param2) {
3478                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3479                            "min_value=%ld)", line, data->name, *dst,
3480                            (long) data->param2);
3481                 *dst = (long) data->param2;
3482                 return -1;
3483         }
3484
3485         if (data->param3 && *dst > (long) data->param3) {
3486                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3487                            "max_value=%ld)", line, data->name, *dst,
3488                            (long) data->param3);
3489                 *dst = (long) data->param3;
3490                 return -1;
3491         }
3492
3493         return 0;
3494 }
3495
3496
3497 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3498                                        struct wpa_config *config, int line,
3499                                        const char *pos)
3500 {
3501         size_t len;
3502         char **dst, *tmp;
3503
3504         len = os_strlen(pos);
3505         if (data->param2 && len < (size_t) data->param2) {
3506                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3507                            "min_len=%ld)", line, data->name,
3508                            (unsigned long) len, (long) data->param2);
3509                 return -1;
3510         }
3511
3512         if (data->param3 && len > (size_t) data->param3) {
3513                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3514                            "max_len=%ld)", line, data->name,
3515                            (unsigned long) len, (long) data->param3);
3516                 return -1;
3517         }
3518
3519         tmp = os_strdup(pos);
3520         if (tmp == NULL)
3521                 return -1;
3522
3523         dst = (char **) (((u8 *) config) + (long) data->param1);
3524         os_free(*dst);
3525         *dst = tmp;
3526         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3527
3528         return 0;
3529 }
3530
3531
3532 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3533                                      struct wpa_config *config, int line,
3534                                      const char *pos)
3535 {
3536         size_t len;
3537         char *tmp;
3538         int res;
3539
3540         tmp = wpa_config_parse_string(pos, &len);
3541         if (tmp == NULL) {
3542                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3543                            line, data->name);
3544                 return -1;
3545         }
3546
3547         res = wpa_global_config_parse_str(data, config, line, tmp);
3548         os_free(tmp);
3549         return res;
3550 }
3551
3552
3553 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3554                                        struct wpa_config *config, int line,
3555                                        const char *pos)
3556 {
3557         size_t len;
3558         struct wpabuf **dst, *tmp;
3559
3560         len = os_strlen(pos);
3561         if (len & 0x01)
3562                 return -1;
3563
3564         tmp = wpabuf_alloc(len / 2);
3565         if (tmp == NULL)
3566                 return -1;
3567
3568         if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3569                 wpabuf_free(tmp);
3570                 return -1;
3571         }
3572
3573         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3574         wpabuf_free(*dst);
3575         *dst = tmp;
3576         wpa_printf(MSG_DEBUG, "%s", data->name);
3577
3578         return 0;
3579 }
3580
3581
3582 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3583                                         struct wpa_config *config, int line,
3584                                         const char *value)
3585 {
3586         int *freqs;
3587
3588         freqs = wpa_config_parse_int_array(value);
3589         if (freqs == NULL)
3590                 return -1;
3591         if (freqs[0] == 0) {
3592                 os_free(freqs);
3593                 freqs = NULL;
3594         }
3595         os_free(config->freq_list);
3596         config->freq_list = freqs;
3597         return 0;
3598 }
3599
3600
3601 #ifdef CONFIG_P2P
3602 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3603                                         struct wpa_config *config, int line,
3604                                         const char *pos)
3605 {
3606         u32 *dst;
3607         struct hostapd_ip_addr addr;
3608
3609         if (hostapd_parse_ip_addr(pos, &addr) < 0)
3610                 return -1;
3611         if (addr.af != AF_INET)
3612                 return -1;
3613
3614         dst = (u32 *) (((u8 *) config) + (long) data->param1);
3615         os_memcpy(dst, &addr.u.v4.s_addr, 4);
3616         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3617                    WPA_GET_BE32((u8 *) dst));
3618
3619         return 0;
3620 }
3621 #endif /* CONFIG_P2P */
3622
3623
3624 static int wpa_config_process_country(const struct global_parse_data *data,
3625                                       struct wpa_config *config, int line,
3626                                       const char *pos)
3627 {
3628         if (!pos[0] || !pos[1]) {
3629                 wpa_printf(MSG_DEBUG, "Invalid country set");
3630                 return -1;
3631         }
3632         config->country[0] = pos[0];
3633         config->country[1] = pos[1];
3634         wpa_printf(MSG_DEBUG, "country='%c%c'",
3635                    config->country[0], config->country[1]);
3636         return 0;
3637 }
3638
3639
3640 static int wpa_config_process_load_dynamic_eap(
3641         const struct global_parse_data *data, struct wpa_config *config,
3642         int line, const char *so)
3643 {
3644         int ret;
3645         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3646         ret = eap_peer_method_load(so);
3647         if (ret == -2) {
3648                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3649                            "reloading.");
3650         } else if (ret) {
3651                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3652                            "method '%s'.", line, so);
3653                 return -1;
3654         }
3655
3656         return 0;
3657 }
3658
3659
3660 #ifdef CONFIG_WPS
3661
3662 static int wpa_config_process_uuid(const struct global_parse_data *data,
3663                                    struct wpa_config *config, int line,
3664                                    const char *pos)
3665 {
3666         char buf[40];
3667         if (uuid_str2bin(pos, config->uuid)) {
3668                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3669                 return -1;
3670         }
3671         uuid_bin2str(config->uuid, buf, sizeof(buf));
3672         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3673         return 0;
3674 }
3675
3676
3677 static int wpa_config_process_device_type(
3678         const struct global_parse_data *data,
3679         struct wpa_config *config, int line, const char *pos)
3680 {
3681         return wps_dev_type_str2bin(pos, config->device_type);
3682 }
3683
3684
3685 static int wpa_config_process_os_version(const struct global_parse_data *data,
3686                                          struct wpa_config *config, int line,
3687                                          const char *pos)
3688 {
3689         if (hexstr2bin(pos, config->os_version, 4)) {
3690                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3691                 return -1;
3692         }
3693         wpa_printf(MSG_DEBUG, "os_version=%08x",
3694                    WPA_GET_BE32(config->os_version));
3695         return 0;
3696 }
3697
3698
3699 static int wpa_config_process_wps_vendor_ext_m1(
3700         const struct global_parse_data *data,
3701         struct wpa_config *config, int line, const char *pos)
3702 {
3703         struct wpabuf *tmp;
3704         int len = os_strlen(pos) / 2;
3705         u8 *p;
3706
3707         if (!len) {
3708                 wpa_printf(MSG_ERROR, "Line %d: "
3709                            "invalid wps_vendor_ext_m1", line);
3710                 return -1;
3711         }
3712
3713         tmp = wpabuf_alloc(len);
3714         if (tmp) {
3715                 p = wpabuf_put(tmp, len);
3716
3717                 if (hexstr2bin(pos, p, len)) {
3718                         wpa_printf(MSG_ERROR, "Line %d: "
3719                                    "invalid wps_vendor_ext_m1", line);
3720                         wpabuf_free(tmp);
3721                         return -1;
3722                 }
3723
3724                 wpabuf_free(config->wps_vendor_ext_m1);
3725                 config->wps_vendor_ext_m1 = tmp;
3726         } else {
3727                 wpa_printf(MSG_ERROR, "Can not allocate "
3728                            "memory for wps_vendor_ext_m1");
3729                 return -1;
3730         }
3731
3732         return 0;
3733 }
3734
3735 #endif /* CONFIG_WPS */
3736
3737 #ifdef CONFIG_P2P
3738 static int wpa_config_process_sec_device_type(
3739         const struct global_parse_data *data,
3740         struct wpa_config *config, int line, const char *pos)
3741 {
3742         int idx;
3743
3744         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3745                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3746                            "items", line);
3747                 return -1;
3748         }
3749
3750         idx = config->num_sec_device_types;
3751
3752         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3753                 return -1;
3754
3755         config->num_sec_device_types++;
3756         return 0;
3757 }
3758
3759
3760 static int wpa_config_process_p2p_pref_chan(
3761         const struct global_parse_data *data,
3762         struct wpa_config *config, int line, const char *pos)
3763 {
3764         struct p2p_channel *pref = NULL, *n;
3765         unsigned int num = 0;
3766         const char *pos2;
3767         u8 op_class, chan;
3768
3769         /* format: class:chan,class:chan,... */
3770
3771         while (*pos) {
3772                 op_class = atoi(pos);
3773                 pos2 = os_strchr(pos, ':');
3774                 if (pos2 == NULL)
3775                         goto fail;
3776                 pos2++;
3777                 chan = atoi(pos2);
3778
3779                 n = os_realloc_array(pref, num + 1,
3780                                      sizeof(struct p2p_channel));
3781                 if (n == NULL)
3782                         goto fail;
3783                 pref = n;
3784                 pref[num].op_class = op_class;
3785                 pref[num].chan = chan;
3786                 num++;
3787
3788                 pos = os_strchr(pos2, ',');
3789                 if (pos == NULL)
3790                         break;
3791                 pos++;
3792         }
3793
3794         os_free(config->p2p_pref_chan);
3795         config->p2p_pref_chan = pref;
3796         config->num_p2p_pref_chan = num;
3797         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3798                     (u8 *) config->p2p_pref_chan,
3799                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3800
3801         return 0;
3802
3803 fail:
3804         os_free(pref);
3805         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3806         return -1;
3807 }
3808
3809
3810 static int wpa_config_process_p2p_no_go_freq(
3811         const struct global_parse_data *data,
3812         struct wpa_config *config, int line, const char *pos)
3813 {
3814         int ret;
3815
3816         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3817         if (ret < 0) {
3818                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3819                 return -1;
3820         }
3821
3822         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3823                    config->p2p_no_go_freq.num);
3824
3825         return 0;
3826 }
3827
3828 #endif /* CONFIG_P2P */
3829
3830
3831 static int wpa_config_process_hessid(
3832         const struct global_parse_data *data,
3833         struct wpa_config *config, int line, const char *pos)
3834 {
3835         if (hwaddr_aton2(pos, config->hessid) < 0) {
3836                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3837                            line, pos);
3838                 return -1;
3839         }
3840
3841         return 0;
3842 }
3843
3844
3845 static int wpa_config_process_sae_groups(
3846         const struct global_parse_data *data,
3847         struct wpa_config *config, int line, const char *pos)
3848 {
3849         int *groups = wpa_config_parse_int_array(pos);
3850         if (groups == NULL) {
3851                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3852                            line, pos);
3853                 return -1;
3854         }
3855
3856         os_free(config->sae_groups);
3857         config->sae_groups = groups;
3858
3859         return 0;
3860 }
3861
3862
3863 static int wpa_config_process_ap_vendor_elements(
3864         const struct global_parse_data *data,
3865         struct wpa_config *config, int line, const char *pos)
3866 {
3867         struct wpabuf *tmp;
3868         int len = os_strlen(pos) / 2;
3869         u8 *p;
3870
3871         if (!len) {
3872                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3873                            line);
3874                 return -1;
3875         }
3876
3877         tmp = wpabuf_alloc(len);
3878         if (tmp) {
3879                 p = wpabuf_put(tmp, len);
3880
3881                 if (hexstr2bin(pos, p, len)) {
3882                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3883                                    "ap_vendor_elements", line);
3884                         wpabuf_free(tmp);
3885                         return -1;
3886                 }
3887
3888                 wpabuf_free(config->ap_vendor_elements);
3889                 config->ap_vendor_elements = tmp;
3890         } else {
3891                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
3892                            "ap_vendor_elements");
3893                 return -1;
3894         }
3895
3896         return 0;
3897 }
3898
3899
3900 #ifdef CONFIG_CTRL_IFACE
3901 static int wpa_config_process_no_ctrl_interface(
3902         const struct global_parse_data *data,
3903         struct wpa_config *config, int line, const char *pos)
3904 {
3905         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
3906         os_free(config->ctrl_interface);
3907         config->ctrl_interface = NULL;
3908         return 0;
3909 }
3910 #endif /* CONFIG_CTRL_IFACE */
3911
3912
3913 #ifdef OFFSET
3914 #undef OFFSET
3915 #endif /* OFFSET */
3916 /* OFFSET: Get offset of a variable within the wpa_config structure */
3917 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
3918
3919 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
3920 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
3921 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
3922 #define INT(f) _INT(f), NULL, NULL
3923 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
3924 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
3925 #define STR(f) _STR(f), NULL, NULL
3926 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
3927 #define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
3928 #define IPV4(f) #f, wpa_global_config_parse_ipv4, OFFSET(f), NULL, NULL
3929
3930 static const struct global_parse_data global_fields[] = {
3931 #ifdef CONFIG_CTRL_IFACE
3932         { STR(ctrl_interface), 0 },
3933         { FUNC_NO_VAR(no_ctrl_interface), 0 },
3934         { STR(ctrl_interface_group), 0 } /* deprecated */,
3935 #endif /* CONFIG_CTRL_IFACE */
3936 #ifdef CONFIG_MACSEC
3937         { INT_RANGE(eapol_version, 1, 3), 0 },
3938 #else /* CONFIG_MACSEC */
3939         { INT_RANGE(eapol_version, 1, 2), 0 },
3940 #endif /* CONFIG_MACSEC */
3941         { INT(ap_scan), 0 },
3942         { FUNC(bgscan), 0 },
3943 #ifdef CONFIG_MESH
3944         { INT(user_mpm), 0 },
3945 #endif /* CONFIG_MESH */
3946         { INT(disable_scan_offload), 0 },
3947         { INT(fast_reauth), 0 },
3948         { STR(opensc_engine_path), 0 },
3949         { STR(pkcs11_engine_path), 0 },
3950         { STR(pkcs11_module_path), 0 },
3951         { STR(openssl_ciphers), 0 },
3952         { STR(pcsc_reader), 0 },
3953         { STR(pcsc_pin), 0 },
3954         { INT(external_sim), 0 },
3955         { STR(driver_param), 0 },
3956         { INT(dot11RSNAConfigPMKLifetime), 0 },
3957         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
3958         { INT(dot11RSNAConfigSATimeout), 0 },
3959 #ifndef CONFIG_NO_CONFIG_WRITE
3960         { INT(update_config), 0 },
3961 #endif /* CONFIG_NO_CONFIG_WRITE */
3962         { FUNC_NO_VAR(load_dynamic_eap), 0 },
3963 #ifdef CONFIG_WPS
3964         { FUNC(uuid), CFG_CHANGED_UUID },
3965         { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
3966         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
3967         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
3968         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
3969         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
3970         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
3971         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
3972         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
3973         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
3974         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
3975 #endif /* CONFIG_WPS */
3976 #ifdef CONFIG_P2P
3977         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
3978         { INT(p2p_listen_reg_class), 0 },
3979         { INT(p2p_listen_channel), 0 },
3980         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
3981         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
3982         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
3983         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
3984         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
3985         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
3986         { INT(p2p_group_idle), 0 },
3987         { INT_RANGE(p2p_passphrase_len, 8, 63),
3988           CFG_CHANGED_P2P_PASSPHRASE_LEN },
3989         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
3990         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
3991         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
3992         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
3993         { INT(p2p_go_ht40), 0 },
3994         { INT(p2p_go_vht), 0 },
3995         { INT(p2p_disabled), 0 },
3996         { INT(p2p_no_group_iface), 0 },
3997         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
3998         { IPV4(ip_addr_go), 0 },
3999         { IPV4(ip_addr_mask), 0 },
4000         { IPV4(ip_addr_start), 0 },
4001         { IPV4(ip_addr_end), 0 },
4002 #endif /* CONFIG_P2P */
4003         { FUNC(country), CFG_CHANGED_COUNTRY },
4004         { INT(bss_max_count), 0 },
4005         { INT(bss_expiration_age), 0 },
4006         { INT(bss_expiration_scan_count), 0 },
4007         { INT_RANGE(filter_ssids, 0, 1), 0 },
4008         { INT_RANGE(filter_rssi, -100, 0), 0 },
4009         { INT(max_num_sta), 0 },
4010         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4011 #ifdef CONFIG_HS20
4012         { INT_RANGE(hs20, 0, 1), 0 },
4013 #endif /* CONFIG_HS20 */
4014         { INT_RANGE(interworking, 0, 1), 0 },
4015         { FUNC(hessid), 0 },
4016         { INT_RANGE(access_network_type, 0, 15), 0 },
4017         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4018         { STR(autoscan), 0 },
4019         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4020           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4021         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4022         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4023         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4024         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4025         { INT(p2p_go_max_inactivity), 0 },
4026         { INT_RANGE(auto_interworking, 0, 1), 0 },
4027         { INT(okc), 0 },
4028         { INT(pmf), 0 },
4029         { FUNC(sae_groups), 0 },
4030         { INT(dtim_period), 0 },
4031         { INT(beacon_int), 0 },
4032         { FUNC(ap_vendor_elements), 0 },
4033         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4034         { FUNC(freq_list), 0 },
4035         { INT(scan_cur_freq), 0 },
4036         { INT(sched_scan_interval), 0 },
4037         { INT(tdls_external_control), 0},
4038         { STR(osu_dir), 0 },
4039         { STR(wowlan_triggers), 0 },
4040         { INT(p2p_search_delay), 0},
4041         { INT(mac_addr), 0 },
4042         { INT(rand_addr_lifetime), 0 },
4043         { INT(preassoc_mac_addr), 0 },
4044         { INT(key_mgmt_offload), 0},
4045 };
4046
4047 #undef FUNC
4048 #undef _INT
4049 #undef INT
4050 #undef INT_RANGE
4051 #undef _STR
4052 #undef STR
4053 #undef STR_RANGE
4054 #undef BIN
4055 #undef IPV4
4056 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4057
4058
4059 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4060 {
4061         size_t i;
4062         int ret = 0;
4063
4064         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4065                 const struct global_parse_data *field = &global_fields[i];
4066                 size_t flen = os_strlen(field->name);
4067                 if (os_strncmp(pos, field->name, flen) != 0 ||
4068                     pos[flen] != '=')
4069                         continue;
4070
4071                 if (field->parser(field, config, line, pos + flen + 1)) {
4072                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4073                                    "parse '%s'.", line, pos);
4074                         ret = -1;
4075                 }
4076                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4077                         config->wps_nfc_pw_from_config = 1;
4078                 config->changed_parameters |= field->changed_flag;
4079                 break;
4080         }
4081         if (i == NUM_GLOBAL_FIELDS) {
4082 #ifdef CONFIG_AP
4083                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4084                         char *tmp = os_strchr(pos, '=');
4085                         if (tmp == NULL) {
4086                                 if (line < 0)
4087                                         return -1;
4088                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4089                                            "'%s'", line, pos);
4090                                 return -1;
4091                         }
4092                         *tmp++ = '\0';
4093                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4094                                                   tmp)) {
4095                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4096                                            "AC item", line);
4097                                 return -1;
4098                         }
4099                 }
4100 #endif /* CONFIG_AP */
4101                 if (line < 0)
4102                         return -1;
4103                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4104                            line, pos);
4105                 ret = -1;
4106         }
4107
4108         return ret;
4109 }