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 static int wpa_config_parse_mesh_basic_rates(const struct parse_data *data,
1621                                              struct wpa_ssid *ssid, int line,
1622                                              const char *value)
1623 {
1624         int *rates = wpa_config_parse_int_array(value);
1625
1626         if (rates == NULL) {
1627                 wpa_printf(MSG_ERROR, "Line %d: Invalid mesh_basic_rates '%s'",
1628                            line, value);
1629                 return -1;
1630         }
1631         if (rates[0] == 0) {
1632                 os_free(rates);
1633                 rates = NULL;
1634         }
1635
1636         os_free(ssid->mesh_basic_rates);
1637         ssid->mesh_basic_rates = rates;
1638
1639         return 0;
1640 }
1641
1642
1643 #ifndef NO_CONFIG_WRITE
1644
1645 static char * wpa_config_write_mesh_ht_mode(const struct parse_data *data,
1646                                             struct wpa_ssid *ssid)
1647 {
1648         char *val;
1649
1650         switch (ssid->mesh_ht_mode) {
1651         default:
1652                 val = NULL;
1653                 break;
1654         case CHAN_NO_HT:
1655                 val = "NOHT";
1656                 break;
1657         case CHAN_HT20:
1658                 val = "HT20";
1659                 break;
1660         case CHAN_HT40MINUS:
1661                 val = "HT40-";
1662                 break;
1663         case CHAN_HT40PLUS:
1664                 val = "HT40+";
1665                 break;
1666         }
1667         return val ? os_strdup(val) : NULL;
1668 }
1669
1670
1671 static char * wpa_config_write_mesh_basic_rates(const struct parse_data *data,
1672                                                 struct wpa_ssid *ssid)
1673 {
1674         return wpa_config_write_freqs(data, ssid->mesh_basic_rates);
1675 }
1676
1677 #endif /* NO_CONFIG_WRITE */
1678
1679 #endif /* CONFIG_MESH */
1680
1681
1682 /* Helper macros for network block parser */
1683
1684 #ifdef OFFSET
1685 #undef OFFSET
1686 #endif /* OFFSET */
1687 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1688 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1689
1690 /* STR: Define a string variable for an ASCII string; f = field name */
1691 #ifdef NO_CONFIG_WRITE
1692 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1693 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1694 #else /* NO_CONFIG_WRITE */
1695 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1696 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1697 #endif /* NO_CONFIG_WRITE */
1698 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1699 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1700 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1701 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1702
1703 /* STR_LEN: Define a string variable with a separate variable for storing the
1704  * data length. Unlike STR(), this can be used to store arbitrary binary data
1705  * (i.e., even nul termination character). */
1706 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1707 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1708 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1709 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1710 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1711
1712 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1713  * explicitly specified. */
1714 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1715 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1716 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1717
1718 #ifdef NO_CONFIG_WRITE
1719 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1720 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1721 #else /* NO_CONFIG_WRITE */
1722 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1723         OFFSET(f), (void *) 0
1724 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1725         OFFSET(eap.f), (void *) 0
1726 #endif /* NO_CONFIG_WRITE */
1727
1728 /* INT: Define an integer variable */
1729 #define INT(f) _INT(f), NULL, NULL, 0
1730 #define INTe(f) _INTe(f), NULL, NULL, 0
1731
1732 /* INT_RANGE: Define an integer variable with allowed value range */
1733 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1734
1735 /* FUNC: Define a configuration variable that uses a custom function for
1736  * parsing and writing the value. */
1737 #ifdef NO_CONFIG_WRITE
1738 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1739 #else /* NO_CONFIG_WRITE */
1740 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1741         NULL, NULL, NULL, NULL
1742 #endif /* NO_CONFIG_WRITE */
1743 #define FUNC(f) _FUNC(f), 0
1744 #define FUNC_KEY(f) _FUNC(f), 1
1745
1746 /*
1747  * Table of network configuration variables. This table is used to parse each
1748  * network configuration variable, e.g., each line in wpa_supplicant.conf file
1749  * that is inside a network block.
1750  *
1751  * This table is generated using the helper macros defined above and with
1752  * generous help from the C pre-processor. The field name is stored as a string
1753  * into .name and for STR and INT types, the offset of the target buffer within
1754  * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1755  * offset to the field containing the length of the configuration variable.
1756  * .param3 and .param4 can be used to mark the allowed range (length for STR
1757  * and value for INT).
1758  *
1759  * For each configuration line in wpa_supplicant.conf, the parser goes through
1760  * this table and select the entry that matches with the field name. The parser
1761  * function (.parser) is then called to parse the actual value of the field.
1762  *
1763  * This kind of mechanism makes it easy to add new configuration parameters,
1764  * since only one line needs to be added into this table and into the
1765  * struct wpa_ssid definition if the new variable is either a string or
1766  * integer. More complex types will need to use their own parser and writer
1767  * functions.
1768  */
1769 static const struct parse_data ssid_fields[] = {
1770         { STR_RANGE(ssid, 0, MAX_SSID_LEN) },
1771         { INT_RANGE(scan_ssid, 0, 1) },
1772         { FUNC(bssid) },
1773         { FUNC_KEY(psk) },
1774         { FUNC(proto) },
1775         { FUNC(key_mgmt) },
1776         { INT(bg_scan_period) },
1777         { FUNC(pairwise) },
1778         { FUNC(group) },
1779         { FUNC(auth_alg) },
1780         { FUNC(scan_freq) },
1781         { FUNC(freq_list) },
1782 #ifdef IEEE8021X_EAPOL
1783         { FUNC(eap) },
1784         { STR_LENe(identity) },
1785         { STR_LENe(anonymous_identity) },
1786         { FUNC_KEY(password) },
1787         { STRe(ca_cert) },
1788         { STRe(ca_path) },
1789         { STRe(client_cert) },
1790         { STRe(private_key) },
1791         { STR_KEYe(private_key_passwd) },
1792         { STRe(dh_file) },
1793         { STRe(subject_match) },
1794         { STRe(altsubject_match) },
1795         { STRe(domain_suffix_match) },
1796         { STRe(ca_cert2) },
1797         { STRe(ca_path2) },
1798         { STRe(client_cert2) },
1799         { STRe(private_key2) },
1800         { STR_KEYe(private_key2_passwd) },
1801         { STRe(dh_file2) },
1802         { STRe(subject_match2) },
1803         { STRe(altsubject_match2) },
1804         { STRe(domain_suffix_match2) },
1805         { STRe(phase1) },
1806         { STRe(phase2) },
1807         { STRe(pcsc) },
1808         { STR_KEYe(pin) },
1809         { STRe(engine_id) },
1810         { STRe(key_id) },
1811         { STRe(cert_id) },
1812         { STRe(ca_cert_id) },
1813         { STR_KEYe(pin2) },
1814         { STRe(engine2_id) },
1815         { STRe(key2_id) },
1816         { STRe(cert2_id) },
1817         { STRe(ca_cert2_id) },
1818         { INTe(engine) },
1819         { INTe(engine2) },
1820         { INT(eapol_flags) },
1821         { INTe(sim_num) },
1822         { STRe(openssl_ciphers) },
1823 #endif /* IEEE8021X_EAPOL */
1824         { FUNC_KEY(wep_key0) },
1825         { FUNC_KEY(wep_key1) },
1826         { FUNC_KEY(wep_key2) },
1827         { FUNC_KEY(wep_key3) },
1828         { INT(wep_tx_keyidx) },
1829         { INT(priority) },
1830 #ifdef IEEE8021X_EAPOL
1831         { INT(eap_workaround) },
1832         { STRe(pac_file) },
1833         { INTe(fragment_size) },
1834         { INTe(ocsp) },
1835 #endif /* IEEE8021X_EAPOL */
1836 #ifdef CONFIG_MESH
1837         { INT_RANGE(mode, 0, 5) },
1838         { INT_RANGE(no_auto_peer, 0, 1) },
1839 #else /* CONFIG_MESH */
1840         { INT_RANGE(mode, 0, 4) },
1841 #endif /* CONFIG_MESH */
1842         { INT_RANGE(proactive_key_caching, 0, 1) },
1843         { INT_RANGE(disabled, 0, 2) },
1844         { STR(id_str) },
1845 #ifdef CONFIG_IEEE80211W
1846         { INT_RANGE(ieee80211w, 0, 2) },
1847 #endif /* CONFIG_IEEE80211W */
1848         { INT_RANGE(peerkey, 0, 1) },
1849         { INT_RANGE(mixed_cell, 0, 1) },
1850         { INT_RANGE(frequency, 0, 65000) },
1851 #ifdef CONFIG_MESH
1852         { FUNC(mesh_ht_mode) },
1853         { FUNC(mesh_basic_rates) },
1854         { INT(dot11MeshMaxRetries) },
1855         { INT(dot11MeshRetryTimeout) },
1856         { INT(dot11MeshConfirmTimeout) },
1857         { INT(dot11MeshHoldingTimeout) },
1858 #endif /* CONFIG_MESH */
1859         { INT(wpa_ptk_rekey) },
1860         { STR(bgscan) },
1861         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1862 #ifdef CONFIG_P2P
1863         { FUNC(go_p2p_dev_addr) },
1864         { FUNC(p2p_client_list) },
1865         { FUNC(psk_list) },
1866 #endif /* CONFIG_P2P */
1867 #ifdef CONFIG_HT_OVERRIDES
1868         { INT_RANGE(disable_ht, 0, 1) },
1869         { INT_RANGE(disable_ht40, -1, 1) },
1870         { INT_RANGE(disable_sgi, 0, 1) },
1871         { INT_RANGE(disable_ldpc, 0, 1) },
1872         { INT_RANGE(ht40_intolerant, 0, 1) },
1873         { INT_RANGE(disable_max_amsdu, -1, 1) },
1874         { INT_RANGE(ampdu_factor, -1, 3) },
1875         { INT_RANGE(ampdu_density, -1, 7) },
1876         { STR(ht_mcs) },
1877 #endif /* CONFIG_HT_OVERRIDES */
1878 #ifdef CONFIG_VHT_OVERRIDES
1879         { INT_RANGE(disable_vht, 0, 1) },
1880         { INT(vht_capa) },
1881         { INT(vht_capa_mask) },
1882         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1883         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1884         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1885         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1886         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1887         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1888         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1889         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1890         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1891         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1892         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1893         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1894         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1895         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1896         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1897         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1898 #endif /* CONFIG_VHT_OVERRIDES */
1899         { INT(ap_max_inactivity) },
1900         { INT(dtim_period) },
1901         { INT(beacon_int) },
1902 #ifdef CONFIG_MACSEC
1903         { INT_RANGE(macsec_policy, 0, 1) },
1904 #endif /* CONFIG_MACSEC */
1905 #ifdef CONFIG_HS20
1906         { INT(update_identifier) },
1907 #endif /* CONFIG_HS20 */
1908         { INT_RANGE(mac_addr, 0, 2) },
1909 };
1910
1911 #undef OFFSET
1912 #undef _STR
1913 #undef STR
1914 #undef STR_KEY
1915 #undef _STR_LEN
1916 #undef STR_LEN
1917 #undef STR_LEN_KEY
1918 #undef _STR_RANGE
1919 #undef STR_RANGE
1920 #undef STR_RANGE_KEY
1921 #undef _INT
1922 #undef INT
1923 #undef INT_RANGE
1924 #undef _FUNC
1925 #undef FUNC
1926 #undef FUNC_KEY
1927 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
1928
1929
1930 /**
1931  * wpa_config_add_prio_network - Add a network to priority lists
1932  * @config: Configuration data from wpa_config_read()
1933  * @ssid: Pointer to the network configuration to be added to the list
1934  * Returns: 0 on success, -1 on failure
1935  *
1936  * This function is used to add a network block to the priority list of
1937  * networks. This must be called for each network when reading in the full
1938  * configuration. In addition, this can be used indirectly when updating
1939  * priorities by calling wpa_config_update_prio_list().
1940  */
1941 int wpa_config_add_prio_network(struct wpa_config *config,
1942                                 struct wpa_ssid *ssid)
1943 {
1944         int prio;
1945         struct wpa_ssid *prev, **nlist;
1946
1947         /*
1948          * Add to an existing priority list if one is available for the
1949          * configured priority level for this network.
1950          */
1951         for (prio = 0; prio < config->num_prio; prio++) {
1952                 prev = config->pssid[prio];
1953                 if (prev->priority == ssid->priority) {
1954                         while (prev->pnext)
1955                                 prev = prev->pnext;
1956                         prev->pnext = ssid;
1957                         return 0;
1958                 }
1959         }
1960
1961         /* First network for this priority - add a new priority list */
1962         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
1963                                  sizeof(struct wpa_ssid *));
1964         if (nlist == NULL)
1965                 return -1;
1966
1967         for (prio = 0; prio < config->num_prio; prio++) {
1968                 if (nlist[prio]->priority < ssid->priority) {
1969                         os_memmove(&nlist[prio + 1], &nlist[prio],
1970                                    (config->num_prio - prio) *
1971                                    sizeof(struct wpa_ssid *));
1972                         break;
1973                 }
1974         }
1975
1976         nlist[prio] = ssid;
1977         config->num_prio++;
1978         config->pssid = nlist;
1979
1980         return 0;
1981 }
1982
1983
1984 /**
1985  * wpa_config_update_prio_list - Update network priority list
1986  * @config: Configuration data from wpa_config_read()
1987  * Returns: 0 on success, -1 on failure
1988  *
1989  * This function is called to update the priority list of networks in the
1990  * configuration when a network is being added or removed. This is also called
1991  * if a priority for a network is changed.
1992  */
1993 int wpa_config_update_prio_list(struct wpa_config *config)
1994 {
1995         struct wpa_ssid *ssid;
1996         int ret = 0;
1997
1998         os_free(config->pssid);
1999         config->pssid = NULL;
2000         config->num_prio = 0;
2001
2002         ssid = config->ssid;
2003         while (ssid) {
2004                 ssid->pnext = NULL;
2005                 if (wpa_config_add_prio_network(config, ssid) < 0)
2006                         ret = -1;
2007                 ssid = ssid->next;
2008         }
2009
2010         return ret;
2011 }
2012
2013
2014 #ifdef IEEE8021X_EAPOL
2015 static void eap_peer_config_free(struct eap_peer_config *eap)
2016 {
2017         os_free(eap->eap_methods);
2018         bin_clear_free(eap->identity, eap->identity_len);
2019         os_free(eap->anonymous_identity);
2020         bin_clear_free(eap->password, eap->password_len);
2021         os_free(eap->ca_cert);
2022         os_free(eap->ca_path);
2023         os_free(eap->client_cert);
2024         os_free(eap->private_key);
2025         str_clear_free(eap->private_key_passwd);
2026         os_free(eap->dh_file);
2027         os_free(eap->subject_match);
2028         os_free(eap->altsubject_match);
2029         os_free(eap->domain_suffix_match);
2030         os_free(eap->ca_cert2);
2031         os_free(eap->ca_path2);
2032         os_free(eap->client_cert2);
2033         os_free(eap->private_key2);
2034         str_clear_free(eap->private_key2_passwd);
2035         os_free(eap->dh_file2);
2036         os_free(eap->subject_match2);
2037         os_free(eap->altsubject_match2);
2038         os_free(eap->domain_suffix_match2);
2039         os_free(eap->phase1);
2040         os_free(eap->phase2);
2041         os_free(eap->pcsc);
2042         str_clear_free(eap->pin);
2043         os_free(eap->engine_id);
2044         os_free(eap->key_id);
2045         os_free(eap->cert_id);
2046         os_free(eap->ca_cert_id);
2047         os_free(eap->key2_id);
2048         os_free(eap->cert2_id);
2049         os_free(eap->ca_cert2_id);
2050         str_clear_free(eap->pin2);
2051         os_free(eap->engine2_id);
2052         os_free(eap->otp);
2053         os_free(eap->pending_req_otp);
2054         os_free(eap->pac_file);
2055         bin_clear_free(eap->new_password, eap->new_password_len);
2056         str_clear_free(eap->external_sim_resp);
2057         os_free(eap->openssl_ciphers);
2058 }
2059 #endif /* IEEE8021X_EAPOL */
2060
2061
2062 /**
2063  * wpa_config_free_ssid - Free network/ssid configuration data
2064  * @ssid: Configuration data for the network
2065  *
2066  * This function frees all resources allocated for the network configuration
2067  * data.
2068  */
2069 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2070 {
2071         struct psk_list_entry *psk;
2072
2073         os_free(ssid->ssid);
2074         os_memset(ssid->psk, 0, sizeof(ssid->psk));
2075         str_clear_free(ssid->passphrase);
2076         os_free(ssid->ext_psk);
2077 #ifdef IEEE8021X_EAPOL
2078         eap_peer_config_free(&ssid->eap);
2079 #endif /* IEEE8021X_EAPOL */
2080         os_free(ssid->id_str);
2081         os_free(ssid->scan_freq);
2082         os_free(ssid->freq_list);
2083         os_free(ssid->bgscan);
2084         os_free(ssid->p2p_client_list);
2085 #ifdef CONFIG_HT_OVERRIDES
2086         os_free(ssid->ht_mcs);
2087 #endif /* CONFIG_HT_OVERRIDES */
2088 #ifdef CONFIG_MESH
2089         os_free(ssid->mesh_basic_rates);
2090 #endif /* CONFIG_MESH */
2091         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2092                                     list))) {
2093                 dl_list_del(&psk->list);
2094                 os_free(psk);
2095         }
2096         os_free(ssid);
2097 }
2098
2099
2100 void wpa_config_free_cred(struct wpa_cred *cred)
2101 {
2102         size_t i;
2103
2104         os_free(cred->realm);
2105         str_clear_free(cred->username);
2106         str_clear_free(cred->password);
2107         os_free(cred->ca_cert);
2108         os_free(cred->client_cert);
2109         os_free(cred->private_key);
2110         str_clear_free(cred->private_key_passwd);
2111         os_free(cred->imsi);
2112         str_clear_free(cred->milenage);
2113         for (i = 0; i < cred->num_domain; i++)
2114                 os_free(cred->domain[i]);
2115         os_free(cred->domain);
2116         os_free(cred->domain_suffix_match);
2117         os_free(cred->eap_method);
2118         os_free(cred->phase1);
2119         os_free(cred->phase2);
2120         os_free(cred->excluded_ssid);
2121         os_free(cred->roaming_partner);
2122         os_free(cred->provisioning_sp);
2123         for (i = 0; i < cred->num_req_conn_capab; i++)
2124                 os_free(cred->req_conn_capab_port[i]);
2125         os_free(cred->req_conn_capab_port);
2126         os_free(cred->req_conn_capab_proto);
2127         os_free(cred);
2128 }
2129
2130
2131 void wpa_config_flush_blobs(struct wpa_config *config)
2132 {
2133 #ifndef CONFIG_NO_CONFIG_BLOBS
2134         struct wpa_config_blob *blob, *prev;
2135
2136         blob = config->blobs;
2137         config->blobs = NULL;
2138         while (blob) {
2139                 prev = blob;
2140                 blob = blob->next;
2141                 wpa_config_free_blob(prev);
2142         }
2143 #endif /* CONFIG_NO_CONFIG_BLOBS */
2144 }
2145
2146
2147 /**
2148  * wpa_config_free - Free configuration data
2149  * @config: Configuration data from wpa_config_read()
2150  *
2151  * This function frees all resources allocated for the configuration data by
2152  * wpa_config_read().
2153  */
2154 void wpa_config_free(struct wpa_config *config)
2155 {
2156         struct wpa_ssid *ssid, *prev = NULL;
2157         struct wpa_cred *cred, *cprev;
2158
2159         ssid = config->ssid;
2160         while (ssid) {
2161                 prev = ssid;
2162                 ssid = ssid->next;
2163                 wpa_config_free_ssid(prev);
2164         }
2165
2166         cred = config->cred;
2167         while (cred) {
2168                 cprev = cred;
2169                 cred = cred->next;
2170                 wpa_config_free_cred(cprev);
2171         }
2172
2173         wpa_config_flush_blobs(config);
2174
2175         wpabuf_free(config->wps_vendor_ext_m1);
2176         os_free(config->ctrl_interface);
2177         os_free(config->ctrl_interface_group);
2178         os_free(config->opensc_engine_path);
2179         os_free(config->pkcs11_engine_path);
2180         os_free(config->pkcs11_module_path);
2181         os_free(config->openssl_ciphers);
2182         os_free(config->pcsc_reader);
2183         str_clear_free(config->pcsc_pin);
2184         os_free(config->driver_param);
2185         os_free(config->device_name);
2186         os_free(config->manufacturer);
2187         os_free(config->model_name);
2188         os_free(config->model_number);
2189         os_free(config->serial_number);
2190         os_free(config->config_methods);
2191         os_free(config->p2p_ssid_postfix);
2192         os_free(config->pssid);
2193         os_free(config->p2p_pref_chan);
2194         os_free(config->p2p_no_go_freq.range);
2195         os_free(config->autoscan);
2196         os_free(config->freq_list);
2197         wpabuf_free(config->wps_nfc_dh_pubkey);
2198         wpabuf_free(config->wps_nfc_dh_privkey);
2199         wpabuf_free(config->wps_nfc_dev_pw);
2200         os_free(config->ext_password_backend);
2201         os_free(config->sae_groups);
2202         wpabuf_free(config->ap_vendor_elements);
2203         os_free(config->osu_dir);
2204         os_free(config->wowlan_triggers);
2205         os_free(config);
2206 }
2207
2208
2209 /**
2210  * wpa_config_foreach_network - Iterate over each configured network
2211  * @config: Configuration data from wpa_config_read()
2212  * @func: Callback function to process each network
2213  * @arg: Opaque argument to pass to callback function
2214  *
2215  * Iterate over the set of configured networks calling the specified
2216  * function for each item. We guard against callbacks removing the
2217  * supplied network.
2218  */
2219 void wpa_config_foreach_network(struct wpa_config *config,
2220                                 void (*func)(void *, struct wpa_ssid *),
2221                                 void *arg)
2222 {
2223         struct wpa_ssid *ssid, *next;
2224
2225         ssid = config->ssid;
2226         while (ssid) {
2227                 next = ssid->next;
2228                 func(arg, ssid);
2229                 ssid = next;
2230         }
2231 }
2232
2233
2234 /**
2235  * wpa_config_get_network - Get configured network based on id
2236  * @config: Configuration data from wpa_config_read()
2237  * @id: Unique network id to search for
2238  * Returns: Network configuration or %NULL if not found
2239  */
2240 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2241 {
2242         struct wpa_ssid *ssid;
2243
2244         ssid = config->ssid;
2245         while (ssid) {
2246                 if (id == ssid->id)
2247                         break;
2248                 ssid = ssid->next;
2249         }
2250
2251         return ssid;
2252 }
2253
2254
2255 /**
2256  * wpa_config_add_network - Add a new network with empty configuration
2257  * @config: Configuration data from wpa_config_read()
2258  * Returns: The new network configuration or %NULL if operation failed
2259  */
2260 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2261 {
2262         int id;
2263         struct wpa_ssid *ssid, *last = NULL;
2264
2265         id = -1;
2266         ssid = config->ssid;
2267         while (ssid) {
2268                 if (ssid->id > id)
2269                         id = ssid->id;
2270                 last = ssid;
2271                 ssid = ssid->next;
2272         }
2273         id++;
2274
2275         ssid = os_zalloc(sizeof(*ssid));
2276         if (ssid == NULL)
2277                 return NULL;
2278         ssid->id = id;
2279         dl_list_init(&ssid->psk_list);
2280         if (last)
2281                 last->next = ssid;
2282         else
2283                 config->ssid = ssid;
2284
2285         wpa_config_update_prio_list(config);
2286
2287         return ssid;
2288 }
2289
2290
2291 /**
2292  * wpa_config_remove_network - Remove a configured network based on id
2293  * @config: Configuration data from wpa_config_read()
2294  * @id: Unique network id to search for
2295  * Returns: 0 on success, or -1 if the network was not found
2296  */
2297 int wpa_config_remove_network(struct wpa_config *config, int id)
2298 {
2299         struct wpa_ssid *ssid, *prev = NULL;
2300
2301         ssid = config->ssid;
2302         while (ssid) {
2303                 if (id == ssid->id)
2304                         break;
2305                 prev = ssid;
2306                 ssid = ssid->next;
2307         }
2308
2309         if (ssid == NULL)
2310                 return -1;
2311
2312         if (prev)
2313                 prev->next = ssid->next;
2314         else
2315                 config->ssid = ssid->next;
2316
2317         wpa_config_update_prio_list(config);
2318         wpa_config_free_ssid(ssid);
2319         return 0;
2320 }
2321
2322
2323 /**
2324  * wpa_config_set_network_defaults - Set network default values
2325  * @ssid: Pointer to network configuration data
2326  */
2327 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2328 {
2329         ssid->proto = DEFAULT_PROTO;
2330         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2331         ssid->group_cipher = DEFAULT_GROUP;
2332         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2333         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2334 #ifdef IEEE8021X_EAPOL
2335         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2336         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2337         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2338         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2339 #endif /* IEEE8021X_EAPOL */
2340 #ifdef CONFIG_MESH
2341         ssid->mesh_ht_mode = DEFAULT_MESH_HT_MODE;
2342         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2343         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2344         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2345         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2346 #endif /* CONFIG_MESH */
2347 #ifdef CONFIG_HT_OVERRIDES
2348         ssid->disable_ht = DEFAULT_DISABLE_HT;
2349         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2350         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2351         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2352         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2353         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2354         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2355 #endif /* CONFIG_HT_OVERRIDES */
2356 #ifdef CONFIG_VHT_OVERRIDES
2357         ssid->vht_rx_mcs_nss_1 = -1;
2358         ssid->vht_rx_mcs_nss_2 = -1;
2359         ssid->vht_rx_mcs_nss_3 = -1;
2360         ssid->vht_rx_mcs_nss_4 = -1;
2361         ssid->vht_rx_mcs_nss_5 = -1;
2362         ssid->vht_rx_mcs_nss_6 = -1;
2363         ssid->vht_rx_mcs_nss_7 = -1;
2364         ssid->vht_rx_mcs_nss_8 = -1;
2365         ssid->vht_tx_mcs_nss_1 = -1;
2366         ssid->vht_tx_mcs_nss_2 = -1;
2367         ssid->vht_tx_mcs_nss_3 = -1;
2368         ssid->vht_tx_mcs_nss_4 = -1;
2369         ssid->vht_tx_mcs_nss_5 = -1;
2370         ssid->vht_tx_mcs_nss_6 = -1;
2371         ssid->vht_tx_mcs_nss_7 = -1;
2372         ssid->vht_tx_mcs_nss_8 = -1;
2373 #endif /* CONFIG_VHT_OVERRIDES */
2374         ssid->proactive_key_caching = -1;
2375 #ifdef CONFIG_IEEE80211W
2376         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2377 #endif /* CONFIG_IEEE80211W */
2378         ssid->mac_addr = -1;
2379 }
2380
2381
2382 /**
2383  * wpa_config_set - Set a variable in network configuration
2384  * @ssid: Pointer to network configuration data
2385  * @var: Variable name, e.g., "ssid"
2386  * @value: Variable value
2387  * @line: Line number in configuration file or 0 if not used
2388  * Returns: 0 on success, -1 on failure
2389  *
2390  * This function can be used to set network configuration variables based on
2391  * both the configuration file and management interface input. The value
2392  * parameter must be in the same format as the text-based configuration file is
2393  * using. For example, strings are using double quotation marks.
2394  */
2395 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2396                    int line)
2397 {
2398         size_t i;
2399         int ret = 0;
2400
2401         if (ssid == NULL || var == NULL || value == NULL)
2402                 return -1;
2403
2404         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2405                 const struct parse_data *field = &ssid_fields[i];
2406                 if (os_strcmp(var, field->name) != 0)
2407                         continue;
2408
2409                 if (field->parser(field, ssid, line, value)) {
2410                         if (line) {
2411                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2412                                            "parse %s '%s'.", line, var, value);
2413                         }
2414                         ret = -1;
2415                 }
2416                 break;
2417         }
2418         if (i == NUM_SSID_FIELDS) {
2419                 if (line) {
2420                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2421                                    "'%s'.", line, var);
2422                 }
2423                 ret = -1;
2424         }
2425
2426         return ret;
2427 }
2428
2429
2430 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2431                           const char *value)
2432 {
2433         size_t len;
2434         char *buf;
2435         int ret;
2436
2437         len = os_strlen(value);
2438         buf = os_malloc(len + 3);
2439         if (buf == NULL)
2440                 return -1;
2441         buf[0] = '"';
2442         os_memcpy(buf + 1, value, len);
2443         buf[len + 1] = '"';
2444         buf[len + 2] = '\0';
2445         ret = wpa_config_set(ssid, var, buf, 0);
2446         os_free(buf);
2447         return ret;
2448 }
2449
2450
2451 /**
2452  * wpa_config_get_all - Get all options from network configuration
2453  * @ssid: Pointer to network configuration data
2454  * @get_keys: Determines if keys/passwords will be included in returned list
2455  *      (if they may be exported)
2456  * Returns: %NULL terminated list of all set keys and their values in the form
2457  * of [key1, val1, key2, val2, ... , NULL]
2458  *
2459  * This function can be used to get list of all configured network properties.
2460  * The caller is responsible for freeing the returned list and all its
2461  * elements.
2462  */
2463 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2464 {
2465         const struct parse_data *field;
2466         char *key, *value;
2467         size_t i;
2468         char **props;
2469         int fields_num;
2470
2471         get_keys = get_keys && ssid->export_keys;
2472
2473         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2474         if (!props)
2475                 return NULL;
2476
2477         fields_num = 0;
2478         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2479                 field = &ssid_fields[i];
2480                 if (field->key_data && !get_keys)
2481                         continue;
2482                 value = field->writer(field, ssid);
2483                 if (value == NULL)
2484                         continue;
2485                 if (os_strlen(value) == 0) {
2486                         os_free(value);
2487                         continue;
2488                 }
2489
2490                 key = os_strdup(field->name);
2491                 if (key == NULL) {
2492                         os_free(value);
2493                         goto err;
2494                 }
2495
2496                 props[fields_num * 2] = key;
2497                 props[fields_num * 2 + 1] = value;
2498
2499                 fields_num++;
2500         }
2501
2502         return props;
2503
2504 err:
2505         value = *props;
2506         while (value)
2507                 os_free(value++);
2508         os_free(props);
2509         return NULL;
2510 }
2511
2512
2513 #ifndef NO_CONFIG_WRITE
2514 /**
2515  * wpa_config_get - Get a variable in network configuration
2516  * @ssid: Pointer to network configuration data
2517  * @var: Variable name, e.g., "ssid"
2518  * Returns: Value of the variable or %NULL on failure
2519  *
2520  * This function can be used to get network configuration variables. The
2521  * returned value is a copy of the configuration variable in text format, i.e,.
2522  * the same format that the text-based configuration file and wpa_config_set()
2523  * are using for the value. The caller is responsible for freeing the returned
2524  * value.
2525  */
2526 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2527 {
2528         size_t i;
2529
2530         if (ssid == NULL || var == NULL)
2531                 return NULL;
2532
2533         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2534                 const struct parse_data *field = &ssid_fields[i];
2535                 if (os_strcmp(var, field->name) == 0)
2536                         return field->writer(field, ssid);
2537         }
2538
2539         return NULL;
2540 }
2541
2542
2543 /**
2544  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2545  * @ssid: Pointer to network configuration data
2546  * @var: Variable name, e.g., "ssid"
2547  * Returns: Value of the variable or %NULL on failure
2548  *
2549  * This function can be used to get network configuration variable like
2550  * wpa_config_get(). The only difference is that this functions does not expose
2551  * key/password material from the configuration. In case a key/password field
2552  * is requested, the returned value is an empty string or %NULL if the variable
2553  * is not set or "*" if the variable is set (regardless of its value). The
2554  * returned value is a copy of the configuration variable in text format, i.e,.
2555  * the same format that the text-based configuration file and wpa_config_set()
2556  * are using for the value. The caller is responsible for freeing the returned
2557  * value.
2558  */
2559 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2560 {
2561         size_t i;
2562
2563         if (ssid == NULL || var == NULL)
2564                 return NULL;
2565
2566         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2567                 const struct parse_data *field = &ssid_fields[i];
2568                 if (os_strcmp(var, field->name) == 0) {
2569                         char *res = field->writer(field, ssid);
2570                         if (field->key_data) {
2571                                 if (res && res[0]) {
2572                                         wpa_printf(MSG_DEBUG, "Do not allow "
2573                                                    "key_data field to be "
2574                                                    "exposed");
2575                                         str_clear_free(res);
2576                                         return os_strdup("*");
2577                                 }
2578
2579                                 os_free(res);
2580                                 return NULL;
2581                         }
2582                         return res;
2583                 }
2584         }
2585
2586         return NULL;
2587 }
2588 #endif /* NO_CONFIG_WRITE */
2589
2590
2591 /**
2592  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2593  * @ssid: Pointer to network configuration data
2594  *
2595  * This function must be called to update WPA PSK when either SSID or the
2596  * passphrase has changed for the network configuration.
2597  */
2598 void wpa_config_update_psk(struct wpa_ssid *ssid)
2599 {
2600 #ifndef CONFIG_NO_PBKDF2
2601         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2602                     ssid->psk, PMK_LEN);
2603         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2604                         ssid->psk, PMK_LEN);
2605         ssid->psk_set = 1;
2606 #endif /* CONFIG_NO_PBKDF2 */
2607 }
2608
2609
2610 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2611                                               const char *value)
2612 {
2613         u8 *proto;
2614         int **port;
2615         int *ports, *nports;
2616         const char *pos;
2617         unsigned int num_ports;
2618
2619         proto = os_realloc_array(cred->req_conn_capab_proto,
2620                                  cred->num_req_conn_capab + 1, sizeof(u8));
2621         if (proto == NULL)
2622                 return -1;
2623         cred->req_conn_capab_proto = proto;
2624
2625         port = os_realloc_array(cred->req_conn_capab_port,
2626                                 cred->num_req_conn_capab + 1, sizeof(int *));
2627         if (port == NULL)
2628                 return -1;
2629         cred->req_conn_capab_port = port;
2630
2631         proto[cred->num_req_conn_capab] = atoi(value);
2632
2633         pos = os_strchr(value, ':');
2634         if (pos == NULL) {
2635                 port[cred->num_req_conn_capab] = NULL;
2636                 cred->num_req_conn_capab++;
2637                 return 0;
2638         }
2639         pos++;
2640
2641         ports = NULL;
2642         num_ports = 0;
2643
2644         while (*pos) {
2645                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2646                 if (nports == NULL) {
2647                         os_free(ports);
2648                         return -1;
2649                 }
2650                 ports = nports;
2651                 ports[num_ports++] = atoi(pos);
2652
2653                 pos = os_strchr(pos, ',');
2654                 if (pos == NULL)
2655                         break;
2656                 pos++;
2657         }
2658
2659         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2660         if (nports == NULL) {
2661                 os_free(ports);
2662                 return -1;
2663         }
2664         ports = nports;
2665         ports[num_ports] = -1;
2666
2667         port[cred->num_req_conn_capab] = ports;
2668         cred->num_req_conn_capab++;
2669         return 0;
2670 }
2671
2672
2673 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2674                         const char *value, int line)
2675 {
2676         char *val;
2677         size_t len;
2678
2679         if (os_strcmp(var, "temporary") == 0) {
2680                 cred->temporary = atoi(value);
2681                 return 0;
2682         }
2683
2684         if (os_strcmp(var, "priority") == 0) {
2685                 cred->priority = atoi(value);
2686                 return 0;
2687         }
2688
2689         if (os_strcmp(var, "sp_priority") == 0) {
2690                 int prio = atoi(value);
2691                 if (prio < 0 || prio > 255)
2692                         return -1;
2693                 cred->sp_priority = prio;
2694                 return 0;
2695         }
2696
2697         if (os_strcmp(var, "pcsc") == 0) {
2698                 cred->pcsc = atoi(value);
2699                 return 0;
2700         }
2701
2702         if (os_strcmp(var, "eap") == 0) {
2703                 struct eap_method_type method;
2704                 method.method = eap_peer_get_type(value, &method.vendor);
2705                 if (method.vendor == EAP_VENDOR_IETF &&
2706                     method.method == EAP_TYPE_NONE) {
2707                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2708                                    "for a credential", line, value);
2709                         return -1;
2710                 }
2711                 os_free(cred->eap_method);
2712                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2713                 if (cred->eap_method == NULL)
2714                         return -1;
2715                 os_memcpy(cred->eap_method, &method, sizeof(method));
2716                 return 0;
2717         }
2718
2719         if (os_strcmp(var, "password") == 0 &&
2720             os_strncmp(value, "ext:", 4) == 0) {
2721                 str_clear_free(cred->password);
2722                 cred->password = os_strdup(value);
2723                 cred->ext_password = 1;
2724                 return 0;
2725         }
2726
2727         if (os_strcmp(var, "update_identifier") == 0) {
2728                 cred->update_identifier = atoi(value);
2729                 return 0;
2730         }
2731
2732         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2733                 cred->min_dl_bandwidth_home = atoi(value);
2734                 return 0;
2735         }
2736
2737         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2738                 cred->min_ul_bandwidth_home = atoi(value);
2739                 return 0;
2740         }
2741
2742         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2743                 cred->min_dl_bandwidth_roaming = atoi(value);
2744                 return 0;
2745         }
2746
2747         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2748                 cred->min_ul_bandwidth_roaming = atoi(value);
2749                 return 0;
2750         }
2751
2752         if (os_strcmp(var, "max_bss_load") == 0) {
2753                 cred->max_bss_load = atoi(value);
2754                 return 0;
2755         }
2756
2757         if (os_strcmp(var, "req_conn_capab") == 0)
2758                 return wpa_config_set_cred_req_conn_capab(cred, value);
2759
2760         if (os_strcmp(var, "ocsp") == 0) {
2761                 cred->ocsp = atoi(value);
2762                 return 0;
2763         }
2764
2765         if (os_strcmp(var, "sim_num") == 0) {
2766                 cred->sim_num = atoi(value);
2767                 return 0;
2768         }
2769
2770         val = wpa_config_parse_string(value, &len);
2771         if (val == NULL) {
2772                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2773                            "value '%s'.", line, var, value);
2774                 return -1;
2775         }
2776
2777         if (os_strcmp(var, "realm") == 0) {
2778                 os_free(cred->realm);
2779                 cred->realm = val;
2780                 return 0;
2781         }
2782
2783         if (os_strcmp(var, "username") == 0) {
2784                 str_clear_free(cred->username);
2785                 cred->username = val;
2786                 return 0;
2787         }
2788
2789         if (os_strcmp(var, "password") == 0) {
2790                 str_clear_free(cred->password);
2791                 cred->password = val;
2792                 cred->ext_password = 0;
2793                 return 0;
2794         }
2795
2796         if (os_strcmp(var, "ca_cert") == 0) {
2797                 os_free(cred->ca_cert);
2798                 cred->ca_cert = val;
2799                 return 0;
2800         }
2801
2802         if (os_strcmp(var, "client_cert") == 0) {
2803                 os_free(cred->client_cert);
2804                 cred->client_cert = val;
2805                 return 0;
2806         }
2807
2808         if (os_strcmp(var, "private_key") == 0) {
2809                 os_free(cred->private_key);
2810                 cred->private_key = val;
2811                 return 0;
2812         }
2813
2814         if (os_strcmp(var, "private_key_passwd") == 0) {
2815                 str_clear_free(cred->private_key_passwd);
2816                 cred->private_key_passwd = val;
2817                 return 0;
2818         }
2819
2820         if (os_strcmp(var, "imsi") == 0) {
2821                 os_free(cred->imsi);
2822                 cred->imsi = val;
2823                 return 0;
2824         }
2825
2826         if (os_strcmp(var, "milenage") == 0) {
2827                 str_clear_free(cred->milenage);
2828                 cred->milenage = val;
2829                 return 0;
2830         }
2831
2832         if (os_strcmp(var, "domain_suffix_match") == 0) {
2833                 os_free(cred->domain_suffix_match);
2834                 cred->domain_suffix_match = val;
2835                 return 0;
2836         }
2837
2838         if (os_strcmp(var, "domain") == 0) {
2839                 char **new_domain;
2840                 new_domain = os_realloc_array(cred->domain,
2841                                               cred->num_domain + 1,
2842                                               sizeof(char *));
2843                 if (new_domain == NULL) {
2844                         os_free(val);
2845                         return -1;
2846                 }
2847                 new_domain[cred->num_domain++] = val;
2848                 cred->domain = new_domain;
2849                 return 0;
2850         }
2851
2852         if (os_strcmp(var, "phase1") == 0) {
2853                 os_free(cred->phase1);
2854                 cred->phase1 = val;
2855                 return 0;
2856         }
2857
2858         if (os_strcmp(var, "phase2") == 0) {
2859                 os_free(cred->phase2);
2860                 cred->phase2 = val;
2861                 return 0;
2862         }
2863
2864         if (os_strcmp(var, "roaming_consortium") == 0) {
2865                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2866                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2867                                    "roaming_consortium length %d (3..15 "
2868                                    "expected)", line, (int) len);
2869                         os_free(val);
2870                         return -1;
2871                 }
2872                 os_memcpy(cred->roaming_consortium, val, len);
2873                 cred->roaming_consortium_len = len;
2874                 os_free(val);
2875                 return 0;
2876         }
2877
2878         if (os_strcmp(var, "required_roaming_consortium") == 0) {
2879                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2880                 {
2881                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2882                                    "required_roaming_consortium length %d "
2883                                    "(3..15 expected)", line, (int) len);
2884                         os_free(val);
2885                         return -1;
2886                 }
2887                 os_memcpy(cred->required_roaming_consortium, val, len);
2888                 cred->required_roaming_consortium_len = len;
2889                 os_free(val);
2890                 return 0;
2891         }
2892
2893         if (os_strcmp(var, "excluded_ssid") == 0) {
2894                 struct excluded_ssid *e;
2895
2896                 if (len > MAX_SSID_LEN) {
2897                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2898                                    "excluded_ssid length %d", line, (int) len);
2899                         os_free(val);
2900                         return -1;
2901                 }
2902
2903                 e = os_realloc_array(cred->excluded_ssid,
2904                                      cred->num_excluded_ssid + 1,
2905                                      sizeof(struct excluded_ssid));
2906                 if (e == NULL) {
2907                         os_free(val);
2908                         return -1;
2909                 }
2910                 cred->excluded_ssid = e;
2911
2912                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2913                 os_memcpy(e->ssid, val, len);
2914                 e->ssid_len = len;
2915
2916                 os_free(val);
2917
2918                 return 0;
2919         }
2920
2921         if (os_strcmp(var, "roaming_partner") == 0) {
2922                 struct roaming_partner *p;
2923                 char *pos;
2924
2925                 p = os_realloc_array(cred->roaming_partner,
2926                                      cred->num_roaming_partner + 1,
2927                                      sizeof(struct roaming_partner));
2928                 if (p == NULL) {
2929                         os_free(val);
2930                         return -1;
2931                 }
2932                 cred->roaming_partner = p;
2933
2934                 p = &cred->roaming_partner[cred->num_roaming_partner];
2935
2936                 pos = os_strchr(val, ',');
2937                 if (pos == NULL) {
2938                         os_free(val);
2939                         return -1;
2940                 }
2941                 *pos++ = '\0';
2942                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
2943                         os_free(val);
2944                         return -1;
2945                 }
2946                 os_memcpy(p->fqdn, val, pos - val);
2947
2948                 p->exact_match = atoi(pos);
2949
2950                 pos = os_strchr(pos, ',');
2951                 if (pos == NULL) {
2952                         os_free(val);
2953                         return -1;
2954                 }
2955                 *pos++ = '\0';
2956
2957                 p->priority = atoi(pos);
2958
2959                 pos = os_strchr(pos, ',');
2960                 if (pos == NULL) {
2961                         os_free(val);
2962                         return -1;
2963                 }
2964                 *pos++ = '\0';
2965
2966                 if (os_strlen(pos) >= sizeof(p->country)) {
2967                         os_free(val);
2968                         return -1;
2969                 }
2970                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
2971
2972                 cred->num_roaming_partner++;
2973                 os_free(val);
2974
2975                 return 0;
2976         }
2977
2978         if (os_strcmp(var, "provisioning_sp") == 0) {
2979                 os_free(cred->provisioning_sp);
2980                 cred->provisioning_sp = val;
2981                 return 0;
2982         }
2983
2984         if (line) {
2985                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2986                            line, var);
2987         }
2988
2989         os_free(val);
2990
2991         return -1;
2992 }
2993
2994
2995 static char * alloc_int_str(int val)
2996 {
2997         char *buf;
2998
2999         buf = os_malloc(20);
3000         if (buf == NULL)
3001                 return NULL;
3002         os_snprintf(buf, 20, "%d", val);
3003         return buf;
3004 }
3005
3006
3007 static char * alloc_strdup(const char *str)
3008 {
3009         if (str == NULL)
3010                 return NULL;
3011         return os_strdup(str);
3012 }
3013
3014
3015 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3016 {
3017         if (os_strcmp(var, "temporary") == 0)
3018                 return alloc_int_str(cred->temporary);
3019
3020         if (os_strcmp(var, "priority") == 0)
3021                 return alloc_int_str(cred->priority);
3022
3023         if (os_strcmp(var, "sp_priority") == 0)
3024                 return alloc_int_str(cred->sp_priority);
3025
3026         if (os_strcmp(var, "pcsc") == 0)
3027                 return alloc_int_str(cred->pcsc);
3028
3029         if (os_strcmp(var, "eap") == 0) {
3030                 if (!cred->eap_method)
3031                         return NULL;
3032                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3033                                                  cred->eap_method[0].method));
3034         }
3035
3036         if (os_strcmp(var, "update_identifier") == 0)
3037                 return alloc_int_str(cred->update_identifier);
3038
3039         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3040                 return alloc_int_str(cred->min_dl_bandwidth_home);
3041
3042         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3043                 return alloc_int_str(cred->min_ul_bandwidth_home);
3044
3045         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3046                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3047
3048         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3049                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3050
3051         if (os_strcmp(var, "max_bss_load") == 0)
3052                 return alloc_int_str(cred->max_bss_load);
3053
3054         if (os_strcmp(var, "req_conn_capab") == 0) {
3055                 unsigned int i;
3056                 char *buf, *end, *pos;
3057                 int ret;
3058
3059                 if (!cred->num_req_conn_capab)
3060                         return NULL;
3061
3062                 buf = os_malloc(4000);
3063                 if (buf == NULL)
3064                         return NULL;
3065                 pos = buf;
3066                 end = pos + 4000;
3067                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3068                         int *ports;
3069
3070                         ret = os_snprintf(pos, end - pos, "%s%u",
3071                                           i > 0 ? "\n" : "",
3072                                           cred->req_conn_capab_proto[i]);
3073                         if (ret < 0 || ret >= end - pos)
3074                                 return buf;
3075                         pos += ret;
3076
3077                         ports = cred->req_conn_capab_port[i];
3078                         if (ports) {
3079                                 int j;
3080                                 for (j = 0; ports[j] != -1; j++) {
3081                                         ret = os_snprintf(pos, end - pos,
3082                                                           "%s%d",
3083                                                           j > 0 ? "," : ":",
3084                                                           ports[j]);
3085                                         if (ret < 0 || ret >= end - pos)
3086                                                 return buf;
3087                                         pos += ret;
3088                                 }
3089                         }
3090                 }
3091
3092                 return buf;
3093         }
3094
3095         if (os_strcmp(var, "ocsp") == 0)
3096                 return alloc_int_str(cred->ocsp);
3097
3098         if (os_strcmp(var, "realm") == 0)
3099                 return alloc_strdup(cred->realm);
3100
3101         if (os_strcmp(var, "username") == 0)
3102                 return alloc_strdup(cred->username);
3103
3104         if (os_strcmp(var, "password") == 0) {
3105                 if (!cred->password)
3106                         return NULL;
3107                 return alloc_strdup("*");
3108         }
3109
3110         if (os_strcmp(var, "ca_cert") == 0)
3111                 return alloc_strdup(cred->ca_cert);
3112
3113         if (os_strcmp(var, "client_cert") == 0)
3114                 return alloc_strdup(cred->client_cert);
3115
3116         if (os_strcmp(var, "private_key") == 0)
3117                 return alloc_strdup(cred->private_key);
3118
3119         if (os_strcmp(var, "private_key_passwd") == 0) {
3120                 if (!cred->private_key_passwd)
3121                         return NULL;
3122                 return alloc_strdup("*");
3123         }
3124
3125         if (os_strcmp(var, "imsi") == 0)
3126                 return alloc_strdup(cred->imsi);
3127
3128         if (os_strcmp(var, "milenage") == 0) {
3129                 if (!(cred->milenage))
3130                         return NULL;
3131                 return alloc_strdup("*");
3132         }
3133
3134         if (os_strcmp(var, "domain_suffix_match") == 0)
3135                 return alloc_strdup(cred->domain_suffix_match);
3136
3137         if (os_strcmp(var, "domain") == 0) {
3138                 unsigned int i;
3139                 char *buf, *end, *pos;
3140                 int ret;
3141
3142                 if (!cred->num_domain)
3143                         return NULL;
3144
3145                 buf = os_malloc(4000);
3146                 if (buf == NULL)
3147                         return NULL;
3148                 pos = buf;
3149                 end = pos + 4000;
3150
3151                 for (i = 0; i < cred->num_domain; i++) {
3152                         ret = os_snprintf(pos, end - pos, "%s%s",
3153                                           i > 0 ? "\n" : "", cred->domain[i]);
3154                         if (ret < 0 || ret >= end - pos)
3155                                 return buf;
3156                         pos += ret;
3157                 }
3158
3159                 return buf;
3160         }
3161
3162         if (os_strcmp(var, "phase1") == 0)
3163                 return alloc_strdup(cred->phase1);
3164
3165         if (os_strcmp(var, "phase2") == 0)
3166                 return alloc_strdup(cred->phase2);
3167
3168         if (os_strcmp(var, "roaming_consortium") == 0) {
3169                 size_t buflen;
3170                 char *buf;
3171
3172                 if (!cred->roaming_consortium_len)
3173                         return NULL;
3174                 buflen = cred->roaming_consortium_len * 2 + 1;
3175                 buf = os_malloc(buflen);
3176                 if (buf == NULL)
3177                         return NULL;
3178                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3179                                  cred->roaming_consortium_len);
3180                 return buf;
3181         }
3182
3183         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3184                 size_t buflen;
3185                 char *buf;
3186
3187                 if (!cred->required_roaming_consortium_len)
3188                         return NULL;
3189                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3190                 buf = os_malloc(buflen);
3191                 if (buf == NULL)
3192                         return NULL;
3193                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3194                                  cred->required_roaming_consortium_len);
3195                 return buf;
3196         }
3197
3198         if (os_strcmp(var, "excluded_ssid") == 0) {
3199                 unsigned int i;
3200                 char *buf, *end, *pos;
3201
3202                 if (!cred->num_excluded_ssid)
3203                         return NULL;
3204
3205                 buf = os_malloc(4000);
3206                 if (buf == NULL)
3207                         return NULL;
3208                 pos = buf;
3209                 end = pos + 4000;
3210
3211                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3212                         struct excluded_ssid *e;
3213                         int ret;
3214
3215                         e = &cred->excluded_ssid[i];
3216                         ret = os_snprintf(pos, end - pos, "%s%s",
3217                                           i > 0 ? "\n" : "",
3218                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3219                         if (ret < 0 || ret >= end - pos)
3220                                 return buf;
3221                         pos += ret;
3222                 }
3223
3224                 return buf;
3225         }
3226
3227         if (os_strcmp(var, "roaming_partner") == 0) {
3228                 unsigned int i;
3229                 char *buf, *end, *pos;
3230
3231                 if (!cred->num_roaming_partner)
3232                         return NULL;
3233
3234                 buf = os_malloc(4000);
3235                 if (buf == NULL)
3236                         return NULL;
3237                 pos = buf;
3238                 end = pos + 4000;
3239
3240                 for (i = 0; i < cred->num_roaming_partner; i++) {
3241                         struct roaming_partner *p;
3242                         int ret;
3243
3244                         p = &cred->roaming_partner[i];
3245                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3246                                           i > 0 ? "\n" : "",
3247                                           p->fqdn, p->exact_match, p->priority,
3248                                           p->country);
3249                         if (ret < 0 || ret >= end - pos)
3250                                 return buf;
3251                         pos += ret;
3252                 }
3253
3254                 return buf;
3255         }
3256
3257         if (os_strcmp(var, "provisioning_sp") == 0)
3258                 return alloc_strdup(cred->provisioning_sp);
3259
3260         return NULL;
3261 }
3262
3263
3264 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3265 {
3266         struct wpa_cred *cred;
3267
3268         cred = config->cred;
3269         while (cred) {
3270                 if (id == cred->id)
3271                         break;
3272                 cred = cred->next;
3273         }
3274
3275         return cred;
3276 }
3277
3278
3279 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3280 {
3281         int id;
3282         struct wpa_cred *cred, *last = NULL;
3283
3284         id = -1;
3285         cred = config->cred;
3286         while (cred) {
3287                 if (cred->id > id)
3288                         id = cred->id;
3289                 last = cred;
3290                 cred = cred->next;
3291         }
3292         id++;
3293
3294         cred = os_zalloc(sizeof(*cred));
3295         if (cred == NULL)
3296                 return NULL;
3297         cred->id = id;
3298         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3299         if (last)
3300                 last->next = cred;
3301         else
3302                 config->cred = cred;
3303
3304         return cred;
3305 }
3306
3307
3308 int wpa_config_remove_cred(struct wpa_config *config, int id)
3309 {
3310         struct wpa_cred *cred, *prev = NULL;
3311
3312         cred = config->cred;
3313         while (cred) {
3314                 if (id == cred->id)
3315                         break;
3316                 prev = cred;
3317                 cred = cred->next;
3318         }
3319
3320         if (cred == NULL)
3321                 return -1;
3322
3323         if (prev)
3324                 prev->next = cred->next;
3325         else
3326                 config->cred = cred->next;
3327
3328         wpa_config_free_cred(cred);
3329         return 0;
3330 }
3331
3332
3333 #ifndef CONFIG_NO_CONFIG_BLOBS
3334 /**
3335  * wpa_config_get_blob - Get a named configuration blob
3336  * @config: Configuration data from wpa_config_read()
3337  * @name: Name of the blob
3338  * Returns: Pointer to blob data or %NULL if not found
3339  */
3340 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3341                                                    const char *name)
3342 {
3343         struct wpa_config_blob *blob = config->blobs;
3344
3345         while (blob) {
3346                 if (os_strcmp(blob->name, name) == 0)
3347                         return blob;
3348                 blob = blob->next;
3349         }
3350         return NULL;
3351 }
3352
3353
3354 /**
3355  * wpa_config_set_blob - Set or add a named configuration blob
3356  * @config: Configuration data from wpa_config_read()
3357  * @blob: New value for the blob
3358  *
3359  * Adds a new configuration blob or replaces the current value of an existing
3360  * blob.
3361  */
3362 void wpa_config_set_blob(struct wpa_config *config,
3363                          struct wpa_config_blob *blob)
3364 {
3365         wpa_config_remove_blob(config, blob->name);
3366         blob->next = config->blobs;
3367         config->blobs = blob;
3368 }
3369
3370
3371 /**
3372  * wpa_config_free_blob - Free blob data
3373  * @blob: Pointer to blob to be freed
3374  */
3375 void wpa_config_free_blob(struct wpa_config_blob *blob)
3376 {
3377         if (blob) {
3378                 os_free(blob->name);
3379                 bin_clear_free(blob->data, blob->len);
3380                 os_free(blob);
3381         }
3382 }
3383
3384
3385 /**
3386  * wpa_config_remove_blob - Remove a named configuration blob
3387  * @config: Configuration data from wpa_config_read()
3388  * @name: Name of the blob to remove
3389  * Returns: 0 if blob was removed or -1 if blob was not found
3390  */
3391 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3392 {
3393         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3394
3395         while (pos) {
3396                 if (os_strcmp(pos->name, name) == 0) {
3397                         if (prev)
3398                                 prev->next = pos->next;
3399                         else
3400                                 config->blobs = pos->next;
3401                         wpa_config_free_blob(pos);
3402                         return 0;
3403                 }
3404                 prev = pos;
3405                 pos = pos->next;
3406         }
3407
3408         return -1;
3409 }
3410 #endif /* CONFIG_NO_CONFIG_BLOBS */
3411
3412
3413 /**
3414  * wpa_config_alloc_empty - Allocate an empty configuration
3415  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3416  * socket
3417  * @driver_param: Driver parameters
3418  * Returns: Pointer to allocated configuration data or %NULL on failure
3419  */
3420 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3421                                            const char *driver_param)
3422 {
3423         struct wpa_config *config;
3424         const int aCWmin = 4, aCWmax = 10;
3425         const struct hostapd_wmm_ac_params ac_bk =
3426                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3427         const struct hostapd_wmm_ac_params ac_be =
3428                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3429         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3430                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3431         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3432                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3433
3434         config = os_zalloc(sizeof(*config));
3435         if (config == NULL)
3436                 return NULL;
3437         config->eapol_version = DEFAULT_EAPOL_VERSION;
3438         config->ap_scan = DEFAULT_AP_SCAN;
3439         config->user_mpm = DEFAULT_USER_MPM;
3440         config->fast_reauth = DEFAULT_FAST_REAUTH;
3441         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3442         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3443         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3444         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3445         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3446         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3447         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3448         config->max_num_sta = DEFAULT_MAX_NUM_STA;
3449         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3450         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3451         config->wmm_ac_params[0] = ac_be;
3452         config->wmm_ac_params[1] = ac_bk;
3453         config->wmm_ac_params[2] = ac_vi;
3454         config->wmm_ac_params[3] = ac_vo;
3455         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3456         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3457         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3458
3459         if (ctrl_interface)
3460                 config->ctrl_interface = os_strdup(ctrl_interface);
3461         if (driver_param)
3462                 config->driver_param = os_strdup(driver_param);
3463
3464         return config;
3465 }
3466
3467
3468 #ifndef CONFIG_NO_STDOUT_DEBUG
3469 /**
3470  * wpa_config_debug_dump_networks - Debug dump of configured networks
3471  * @config: Configuration data from wpa_config_read()
3472  */
3473 void wpa_config_debug_dump_networks(struct wpa_config *config)
3474 {
3475         int prio;
3476         struct wpa_ssid *ssid;
3477
3478         for (prio = 0; prio < config->num_prio; prio++) {
3479                 ssid = config->pssid[prio];
3480                 wpa_printf(MSG_DEBUG, "Priority group %d",
3481                            ssid->priority);
3482                 while (ssid) {
3483                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3484                                    ssid->id,
3485                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3486                         ssid = ssid->pnext;
3487                 }
3488         }
3489 }
3490 #endif /* CONFIG_NO_STDOUT_DEBUG */
3491
3492
3493 struct global_parse_data {
3494         char *name;
3495         int (*parser)(const struct global_parse_data *data,
3496                       struct wpa_config *config, int line, const char *value);
3497         void *param1, *param2, *param3;
3498         unsigned int changed_flag;
3499 };
3500
3501
3502 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3503                                        struct wpa_config *config, int line,
3504                                        const char *pos)
3505 {
3506         int val, *dst;
3507         char *end;
3508
3509         dst = (int *) (((u8 *) config) + (long) data->param1);
3510         val = strtol(pos, &end, 0);
3511         if (*end) {
3512                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3513                            line, pos);
3514                 return -1;
3515         }
3516         *dst = val;
3517
3518         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3519
3520         if (data->param2 && *dst < (long) data->param2) {
3521                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3522                            "min_value=%ld)", line, data->name, *dst,
3523                            (long) data->param2);
3524                 *dst = (long) data->param2;
3525                 return -1;
3526         }
3527
3528         if (data->param3 && *dst > (long) data->param3) {
3529                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3530                            "max_value=%ld)", line, data->name, *dst,
3531                            (long) data->param3);
3532                 *dst = (long) data->param3;
3533                 return -1;
3534         }
3535
3536         return 0;
3537 }
3538
3539
3540 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3541                                        struct wpa_config *config, int line,
3542                                        const char *pos)
3543 {
3544         size_t len;
3545         char **dst, *tmp;
3546
3547         len = os_strlen(pos);
3548         if (data->param2 && len < (size_t) data->param2) {
3549                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3550                            "min_len=%ld)", line, data->name,
3551                            (unsigned long) len, (long) data->param2);
3552                 return -1;
3553         }
3554
3555         if (data->param3 && len > (size_t) data->param3) {
3556                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3557                            "max_len=%ld)", line, data->name,
3558                            (unsigned long) len, (long) data->param3);
3559                 return -1;
3560         }
3561
3562         tmp = os_strdup(pos);
3563         if (tmp == NULL)
3564                 return -1;
3565
3566         dst = (char **) (((u8 *) config) + (long) data->param1);
3567         os_free(*dst);
3568         *dst = tmp;
3569         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3570
3571         return 0;
3572 }
3573
3574
3575 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3576                                      struct wpa_config *config, int line,
3577                                      const char *pos)
3578 {
3579         size_t len;
3580         char *tmp;
3581         int res;
3582
3583         tmp = wpa_config_parse_string(pos, &len);
3584         if (tmp == NULL) {
3585                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3586                            line, data->name);
3587                 return -1;
3588         }
3589
3590         res = wpa_global_config_parse_str(data, config, line, tmp);
3591         os_free(tmp);
3592         return res;
3593 }
3594
3595
3596 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3597                                        struct wpa_config *config, int line,
3598                                        const char *pos)
3599 {
3600         size_t len;
3601         struct wpabuf **dst, *tmp;
3602
3603         len = os_strlen(pos);
3604         if (len & 0x01)
3605                 return -1;
3606
3607         tmp = wpabuf_alloc(len / 2);
3608         if (tmp == NULL)
3609                 return -1;
3610
3611         if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3612                 wpabuf_free(tmp);
3613                 return -1;
3614         }
3615
3616         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3617         wpabuf_free(*dst);
3618         *dst = tmp;
3619         wpa_printf(MSG_DEBUG, "%s", data->name);
3620
3621         return 0;
3622 }
3623
3624
3625 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3626                                         struct wpa_config *config, int line,
3627                                         const char *value)
3628 {
3629         int *freqs;
3630
3631         freqs = wpa_config_parse_int_array(value);
3632         if (freqs == NULL)
3633                 return -1;
3634         if (freqs[0] == 0) {
3635                 os_free(freqs);
3636                 freqs = NULL;
3637         }
3638         os_free(config->freq_list);
3639         config->freq_list = freqs;
3640         return 0;
3641 }
3642
3643
3644 #ifdef CONFIG_P2P
3645 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3646                                         struct wpa_config *config, int line,
3647                                         const char *pos)
3648 {
3649         u32 *dst;
3650         struct hostapd_ip_addr addr;
3651
3652         if (hostapd_parse_ip_addr(pos, &addr) < 0)
3653                 return -1;
3654         if (addr.af != AF_INET)
3655                 return -1;
3656
3657         dst = (u32 *) (((u8 *) config) + (long) data->param1);
3658         os_memcpy(dst, &addr.u.v4.s_addr, 4);
3659         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3660                    WPA_GET_BE32((u8 *) dst));
3661
3662         return 0;
3663 }
3664 #endif /* CONFIG_P2P */
3665
3666
3667 static int wpa_config_process_country(const struct global_parse_data *data,
3668                                       struct wpa_config *config, int line,
3669                                       const char *pos)
3670 {
3671         if (!pos[0] || !pos[1]) {
3672                 wpa_printf(MSG_DEBUG, "Invalid country set");
3673                 return -1;
3674         }
3675         config->country[0] = pos[0];
3676         config->country[1] = pos[1];
3677         wpa_printf(MSG_DEBUG, "country='%c%c'",
3678                    config->country[0], config->country[1]);
3679         return 0;
3680 }
3681
3682
3683 static int wpa_config_process_load_dynamic_eap(
3684         const struct global_parse_data *data, struct wpa_config *config,
3685         int line, const char *so)
3686 {
3687         int ret;
3688         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3689         ret = eap_peer_method_load(so);
3690         if (ret == -2) {
3691                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3692                            "reloading.");
3693         } else if (ret) {
3694                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3695                            "method '%s'.", line, so);
3696                 return -1;
3697         }
3698
3699         return 0;
3700 }
3701
3702
3703 #ifdef CONFIG_WPS
3704
3705 static int wpa_config_process_uuid(const struct global_parse_data *data,
3706                                    struct wpa_config *config, int line,
3707                                    const char *pos)
3708 {
3709         char buf[40];
3710         if (uuid_str2bin(pos, config->uuid)) {
3711                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3712                 return -1;
3713         }
3714         uuid_bin2str(config->uuid, buf, sizeof(buf));
3715         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3716         return 0;
3717 }
3718
3719
3720 static int wpa_config_process_device_type(
3721         const struct global_parse_data *data,
3722         struct wpa_config *config, int line, const char *pos)
3723 {
3724         return wps_dev_type_str2bin(pos, config->device_type);
3725 }
3726
3727
3728 static int wpa_config_process_os_version(const struct global_parse_data *data,
3729                                          struct wpa_config *config, int line,
3730                                          const char *pos)
3731 {
3732         if (hexstr2bin(pos, config->os_version, 4)) {
3733                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3734                 return -1;
3735         }
3736         wpa_printf(MSG_DEBUG, "os_version=%08x",
3737                    WPA_GET_BE32(config->os_version));
3738         return 0;
3739 }
3740
3741
3742 static int wpa_config_process_wps_vendor_ext_m1(
3743         const struct global_parse_data *data,
3744         struct wpa_config *config, int line, const char *pos)
3745 {
3746         struct wpabuf *tmp;
3747         int len = os_strlen(pos) / 2;
3748         u8 *p;
3749
3750         if (!len) {
3751                 wpa_printf(MSG_ERROR, "Line %d: "
3752                            "invalid wps_vendor_ext_m1", line);
3753                 return -1;
3754         }
3755
3756         tmp = wpabuf_alloc(len);
3757         if (tmp) {
3758                 p = wpabuf_put(tmp, len);
3759
3760                 if (hexstr2bin(pos, p, len)) {
3761                         wpa_printf(MSG_ERROR, "Line %d: "
3762                                    "invalid wps_vendor_ext_m1", line);
3763                         wpabuf_free(tmp);
3764                         return -1;
3765                 }
3766
3767                 wpabuf_free(config->wps_vendor_ext_m1);
3768                 config->wps_vendor_ext_m1 = tmp;
3769         } else {
3770                 wpa_printf(MSG_ERROR, "Can not allocate "
3771                            "memory for wps_vendor_ext_m1");
3772                 return -1;
3773         }
3774
3775         return 0;
3776 }
3777
3778 #endif /* CONFIG_WPS */
3779
3780 #ifdef CONFIG_P2P
3781 static int wpa_config_process_sec_device_type(
3782         const struct global_parse_data *data,
3783         struct wpa_config *config, int line, const char *pos)
3784 {
3785         int idx;
3786
3787         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3788                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3789                            "items", line);
3790                 return -1;
3791         }
3792
3793         idx = config->num_sec_device_types;
3794
3795         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3796                 return -1;
3797
3798         config->num_sec_device_types++;
3799         return 0;
3800 }
3801
3802
3803 static int wpa_config_process_p2p_pref_chan(
3804         const struct global_parse_data *data,
3805         struct wpa_config *config, int line, const char *pos)
3806 {
3807         struct p2p_channel *pref = NULL, *n;
3808         unsigned int num = 0;
3809         const char *pos2;
3810         u8 op_class, chan;
3811
3812         /* format: class:chan,class:chan,... */
3813
3814         while (*pos) {
3815                 op_class = atoi(pos);
3816                 pos2 = os_strchr(pos, ':');
3817                 if (pos2 == NULL)
3818                         goto fail;
3819                 pos2++;
3820                 chan = atoi(pos2);
3821
3822                 n = os_realloc_array(pref, num + 1,
3823                                      sizeof(struct p2p_channel));
3824                 if (n == NULL)
3825                         goto fail;
3826                 pref = n;
3827                 pref[num].op_class = op_class;
3828                 pref[num].chan = chan;
3829                 num++;
3830
3831                 pos = os_strchr(pos2, ',');
3832                 if (pos == NULL)
3833                         break;
3834                 pos++;
3835         }
3836
3837         os_free(config->p2p_pref_chan);
3838         config->p2p_pref_chan = pref;
3839         config->num_p2p_pref_chan = num;
3840         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3841                     (u8 *) config->p2p_pref_chan,
3842                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3843
3844         return 0;
3845
3846 fail:
3847         os_free(pref);
3848         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3849         return -1;
3850 }
3851
3852
3853 static int wpa_config_process_p2p_no_go_freq(
3854         const struct global_parse_data *data,
3855         struct wpa_config *config, int line, const char *pos)
3856 {
3857         int ret;
3858
3859         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3860         if (ret < 0) {
3861                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3862                 return -1;
3863         }
3864
3865         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3866                    config->p2p_no_go_freq.num);
3867
3868         return 0;
3869 }
3870
3871 #endif /* CONFIG_P2P */
3872
3873
3874 static int wpa_config_process_hessid(
3875         const struct global_parse_data *data,
3876         struct wpa_config *config, int line, const char *pos)
3877 {
3878         if (hwaddr_aton2(pos, config->hessid) < 0) {
3879                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3880                            line, pos);
3881                 return -1;
3882         }
3883
3884         return 0;
3885 }
3886
3887
3888 static int wpa_config_process_sae_groups(
3889         const struct global_parse_data *data,
3890         struct wpa_config *config, int line, const char *pos)
3891 {
3892         int *groups = wpa_config_parse_int_array(pos);
3893         if (groups == NULL) {
3894                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3895                            line, pos);
3896                 return -1;
3897         }
3898
3899         os_free(config->sae_groups);
3900         config->sae_groups = groups;
3901
3902         return 0;
3903 }
3904
3905
3906 static int wpa_config_process_ap_vendor_elements(
3907         const struct global_parse_data *data,
3908         struct wpa_config *config, int line, const char *pos)
3909 {
3910         struct wpabuf *tmp;
3911         int len = os_strlen(pos) / 2;
3912         u8 *p;
3913
3914         if (!len) {
3915                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3916                            line);
3917                 return -1;
3918         }
3919
3920         tmp = wpabuf_alloc(len);
3921         if (tmp) {
3922                 p = wpabuf_put(tmp, len);
3923
3924                 if (hexstr2bin(pos, p, len)) {
3925                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3926                                    "ap_vendor_elements", line);
3927                         wpabuf_free(tmp);
3928                         return -1;
3929                 }
3930
3931                 wpabuf_free(config->ap_vendor_elements);
3932                 config->ap_vendor_elements = tmp;
3933         } else {
3934                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
3935                            "ap_vendor_elements");
3936                 return -1;
3937         }
3938
3939         return 0;
3940 }
3941
3942
3943 #ifdef CONFIG_CTRL_IFACE
3944 static int wpa_config_process_no_ctrl_interface(
3945         const struct global_parse_data *data,
3946         struct wpa_config *config, int line, const char *pos)
3947 {
3948         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
3949         os_free(config->ctrl_interface);
3950         config->ctrl_interface = NULL;
3951         return 0;
3952 }
3953 #endif /* CONFIG_CTRL_IFACE */
3954
3955
3956 #ifdef OFFSET
3957 #undef OFFSET
3958 #endif /* OFFSET */
3959 /* OFFSET: Get offset of a variable within the wpa_config structure */
3960 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
3961
3962 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
3963 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
3964 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
3965 #define INT(f) _INT(f), NULL, NULL
3966 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
3967 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
3968 #define STR(f) _STR(f), NULL, NULL
3969 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
3970 #define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
3971 #define IPV4(f) #f, wpa_global_config_parse_ipv4, OFFSET(f), NULL, NULL
3972
3973 static const struct global_parse_data global_fields[] = {
3974 #ifdef CONFIG_CTRL_IFACE
3975         { STR(ctrl_interface), 0 },
3976         { FUNC_NO_VAR(no_ctrl_interface), 0 },
3977         { STR(ctrl_interface_group), 0 } /* deprecated */,
3978 #endif /* CONFIG_CTRL_IFACE */
3979 #ifdef CONFIG_MACSEC
3980         { INT_RANGE(eapol_version, 1, 3), 0 },
3981 #else /* CONFIG_MACSEC */
3982         { INT_RANGE(eapol_version, 1, 2), 0 },
3983 #endif /* CONFIG_MACSEC */
3984         { INT(ap_scan), 0 },
3985         { FUNC(bgscan), 0 },
3986 #ifdef CONFIG_MESH
3987         { INT(user_mpm), 0 },
3988 #endif /* CONFIG_MESH */
3989         { INT(disable_scan_offload), 0 },
3990         { INT(fast_reauth), 0 },
3991         { STR(opensc_engine_path), 0 },
3992         { STR(pkcs11_engine_path), 0 },
3993         { STR(pkcs11_module_path), 0 },
3994         { STR(openssl_ciphers), 0 },
3995         { STR(pcsc_reader), 0 },
3996         { STR(pcsc_pin), 0 },
3997         { INT(external_sim), 0 },
3998         { STR(driver_param), 0 },
3999         { INT(dot11RSNAConfigPMKLifetime), 0 },
4000         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4001         { INT(dot11RSNAConfigSATimeout), 0 },
4002 #ifndef CONFIG_NO_CONFIG_WRITE
4003         { INT(update_config), 0 },
4004 #endif /* CONFIG_NO_CONFIG_WRITE */
4005         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4006 #ifdef CONFIG_WPS
4007         { FUNC(uuid), CFG_CHANGED_UUID },
4008         { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
4009         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4010         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4011         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4012         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4013         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4014         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4015         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4016         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4017         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4018 #endif /* CONFIG_WPS */
4019 #ifdef CONFIG_P2P
4020         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4021         { INT(p2p_listen_reg_class), 0 },
4022         { INT(p2p_listen_channel), 0 },
4023         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4024         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4025         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4026         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4027         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4028         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4029         { INT(p2p_group_idle), 0 },
4030         { INT_RANGE(p2p_passphrase_len, 8, 63),
4031           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4032         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4033         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4034         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4035         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4036         { INT(p2p_go_ht40), 0 },
4037         { INT(p2p_go_vht), 0 },
4038         { INT(p2p_disabled), 0 },
4039         { INT(p2p_no_group_iface), 0 },
4040         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4041         { IPV4(ip_addr_go), 0 },
4042         { IPV4(ip_addr_mask), 0 },
4043         { IPV4(ip_addr_start), 0 },
4044         { IPV4(ip_addr_end), 0 },
4045 #endif /* CONFIG_P2P */
4046         { FUNC(country), CFG_CHANGED_COUNTRY },
4047         { INT(bss_max_count), 0 },
4048         { INT(bss_expiration_age), 0 },
4049         { INT(bss_expiration_scan_count), 0 },
4050         { INT_RANGE(filter_ssids, 0, 1), 0 },
4051         { INT_RANGE(filter_rssi, -100, 0), 0 },
4052         { INT(max_num_sta), 0 },
4053         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4054 #ifdef CONFIG_HS20
4055         { INT_RANGE(hs20, 0, 1), 0 },
4056 #endif /* CONFIG_HS20 */
4057         { INT_RANGE(interworking, 0, 1), 0 },
4058         { FUNC(hessid), 0 },
4059         { INT_RANGE(access_network_type, 0, 15), 0 },
4060         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4061         { STR(autoscan), 0 },
4062         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4063           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4064         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4065         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4066         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4067         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4068         { INT(p2p_go_max_inactivity), 0 },
4069         { INT_RANGE(auto_interworking, 0, 1), 0 },
4070         { INT(okc), 0 },
4071         { INT(pmf), 0 },
4072         { FUNC(sae_groups), 0 },
4073         { INT(dtim_period), 0 },
4074         { INT(beacon_int), 0 },
4075         { FUNC(ap_vendor_elements), 0 },
4076         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4077         { FUNC(freq_list), 0 },
4078         { INT(scan_cur_freq), 0 },
4079         { INT(sched_scan_interval), 0 },
4080         { INT(tdls_external_control), 0},
4081         { STR(osu_dir), 0 },
4082         { STR(wowlan_triggers), 0 },
4083         { INT(p2p_search_delay), 0},
4084         { INT(mac_addr), 0 },
4085         { INT(rand_addr_lifetime), 0 },
4086         { INT(preassoc_mac_addr), 0 },
4087         { INT(key_mgmt_offload), 0},
4088 };
4089
4090 #undef FUNC
4091 #undef _INT
4092 #undef INT
4093 #undef INT_RANGE
4094 #undef _STR
4095 #undef STR
4096 #undef STR_RANGE
4097 #undef BIN
4098 #undef IPV4
4099 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4100
4101
4102 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4103 {
4104         size_t i;
4105         int ret = 0;
4106
4107         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4108                 const struct global_parse_data *field = &global_fields[i];
4109                 size_t flen = os_strlen(field->name);
4110                 if (os_strncmp(pos, field->name, flen) != 0 ||
4111                     pos[flen] != '=')
4112                         continue;
4113
4114                 if (field->parser(field, config, line, pos + flen + 1)) {
4115                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4116                                    "parse '%s'.", line, pos);
4117                         ret = -1;
4118                 }
4119                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4120                         config->wps_nfc_pw_from_config = 1;
4121                 config->changed_parameters |= field->changed_flag;
4122                 break;
4123         }
4124         if (i == NUM_GLOBAL_FIELDS) {
4125 #ifdef CONFIG_AP
4126                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4127                         char *tmp = os_strchr(pos, '=');
4128                         if (tmp == NULL) {
4129                                 if (line < 0)
4130                                         return -1;
4131                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4132                                            "'%s'", line, pos);
4133                                 return -1;
4134                         }
4135                         *tmp++ = '\0';
4136                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4137                                                   tmp)) {
4138                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4139                                            "AC item", line);
4140                                 return -1;
4141                         }
4142                 }
4143 #endif /* CONFIG_AP */
4144                 if (line < 0)
4145                         return -1;
4146                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4147                            line, pos);
4148                 ret = -1;
4149         }
4150
4151         return ret;
4152 }