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 (!os_snprintf_error(sizeof(title), res))
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         { INTe(erp) },
1824 #endif /* IEEE8021X_EAPOL */
1825         { FUNC_KEY(wep_key0) },
1826         { FUNC_KEY(wep_key1) },
1827         { FUNC_KEY(wep_key2) },
1828         { FUNC_KEY(wep_key3) },
1829         { INT(wep_tx_keyidx) },
1830         { INT(priority) },
1831 #ifdef IEEE8021X_EAPOL
1832         { INT(eap_workaround) },
1833         { STRe(pac_file) },
1834         { INTe(fragment_size) },
1835         { INTe(ocsp) },
1836 #endif /* IEEE8021X_EAPOL */
1837 #ifdef CONFIG_MESH
1838         { INT_RANGE(mode, 0, 5) },
1839         { INT_RANGE(no_auto_peer, 0, 1) },
1840 #else /* CONFIG_MESH */
1841         { INT_RANGE(mode, 0, 4) },
1842 #endif /* CONFIG_MESH */
1843         { INT_RANGE(proactive_key_caching, 0, 1) },
1844         { INT_RANGE(disabled, 0, 2) },
1845         { STR(id_str) },
1846 #ifdef CONFIG_IEEE80211W
1847         { INT_RANGE(ieee80211w, 0, 2) },
1848 #endif /* CONFIG_IEEE80211W */
1849         { INT_RANGE(peerkey, 0, 1) },
1850         { INT_RANGE(mixed_cell, 0, 1) },
1851         { INT_RANGE(frequency, 0, 65000) },
1852 #ifdef CONFIG_MESH
1853         { FUNC(mesh_ht_mode) },
1854         { FUNC(mesh_basic_rates) },
1855         { INT(dot11MeshMaxRetries) },
1856         { INT(dot11MeshRetryTimeout) },
1857         { INT(dot11MeshConfirmTimeout) },
1858         { INT(dot11MeshHoldingTimeout) },
1859 #endif /* CONFIG_MESH */
1860         { INT(wpa_ptk_rekey) },
1861         { STR(bgscan) },
1862         { INT_RANGE(ignore_broadcast_ssid, 0, 2) },
1863 #ifdef CONFIG_P2P
1864         { FUNC(go_p2p_dev_addr) },
1865         { FUNC(p2p_client_list) },
1866         { FUNC(psk_list) },
1867 #endif /* CONFIG_P2P */
1868 #ifdef CONFIG_HT_OVERRIDES
1869         { INT_RANGE(disable_ht, 0, 1) },
1870         { INT_RANGE(disable_ht40, -1, 1) },
1871         { INT_RANGE(disable_sgi, 0, 1) },
1872         { INT_RANGE(disable_ldpc, 0, 1) },
1873         { INT_RANGE(ht40_intolerant, 0, 1) },
1874         { INT_RANGE(disable_max_amsdu, -1, 1) },
1875         { INT_RANGE(ampdu_factor, -1, 3) },
1876         { INT_RANGE(ampdu_density, -1, 7) },
1877         { STR(ht_mcs) },
1878 #endif /* CONFIG_HT_OVERRIDES */
1879 #ifdef CONFIG_VHT_OVERRIDES
1880         { INT_RANGE(disable_vht, 0, 1) },
1881         { INT(vht_capa) },
1882         { INT(vht_capa_mask) },
1883         { INT_RANGE(vht_rx_mcs_nss_1, -1, 3) },
1884         { INT_RANGE(vht_rx_mcs_nss_2, -1, 3) },
1885         { INT_RANGE(vht_rx_mcs_nss_3, -1, 3) },
1886         { INT_RANGE(vht_rx_mcs_nss_4, -1, 3) },
1887         { INT_RANGE(vht_rx_mcs_nss_5, -1, 3) },
1888         { INT_RANGE(vht_rx_mcs_nss_6, -1, 3) },
1889         { INT_RANGE(vht_rx_mcs_nss_7, -1, 3) },
1890         { INT_RANGE(vht_rx_mcs_nss_8, -1, 3) },
1891         { INT_RANGE(vht_tx_mcs_nss_1, -1, 3) },
1892         { INT_RANGE(vht_tx_mcs_nss_2, -1, 3) },
1893         { INT_RANGE(vht_tx_mcs_nss_3, -1, 3) },
1894         { INT_RANGE(vht_tx_mcs_nss_4, -1, 3) },
1895         { INT_RANGE(vht_tx_mcs_nss_5, -1, 3) },
1896         { INT_RANGE(vht_tx_mcs_nss_6, -1, 3) },
1897         { INT_RANGE(vht_tx_mcs_nss_7, -1, 3) },
1898         { INT_RANGE(vht_tx_mcs_nss_8, -1, 3) },
1899 #endif /* CONFIG_VHT_OVERRIDES */
1900         { INT(ap_max_inactivity) },
1901         { INT(dtim_period) },
1902         { INT(beacon_int) },
1903 #ifdef CONFIG_MACSEC
1904         { INT_RANGE(macsec_policy, 0, 1) },
1905 #endif /* CONFIG_MACSEC */
1906 #ifdef CONFIG_HS20
1907         { INT(update_identifier) },
1908 #endif /* CONFIG_HS20 */
1909         { INT_RANGE(mac_addr, 0, 2) },
1910 };
1911
1912 #undef OFFSET
1913 #undef _STR
1914 #undef STR
1915 #undef STR_KEY
1916 #undef _STR_LEN
1917 #undef STR_LEN
1918 #undef STR_LEN_KEY
1919 #undef _STR_RANGE
1920 #undef STR_RANGE
1921 #undef STR_RANGE_KEY
1922 #undef _INT
1923 #undef INT
1924 #undef INT_RANGE
1925 #undef _FUNC
1926 #undef FUNC
1927 #undef FUNC_KEY
1928 #define NUM_SSID_FIELDS ARRAY_SIZE(ssid_fields)
1929
1930
1931 /**
1932  * wpa_config_add_prio_network - Add a network to priority lists
1933  * @config: Configuration data from wpa_config_read()
1934  * @ssid: Pointer to the network configuration to be added to the list
1935  * Returns: 0 on success, -1 on failure
1936  *
1937  * This function is used to add a network block to the priority list of
1938  * networks. This must be called for each network when reading in the full
1939  * configuration. In addition, this can be used indirectly when updating
1940  * priorities by calling wpa_config_update_prio_list().
1941  */
1942 int wpa_config_add_prio_network(struct wpa_config *config,
1943                                 struct wpa_ssid *ssid)
1944 {
1945         int prio;
1946         struct wpa_ssid *prev, **nlist;
1947
1948         /*
1949          * Add to an existing priority list if one is available for the
1950          * configured priority level for this network.
1951          */
1952         for (prio = 0; prio < config->num_prio; prio++) {
1953                 prev = config->pssid[prio];
1954                 if (prev->priority == ssid->priority) {
1955                         while (prev->pnext)
1956                                 prev = prev->pnext;
1957                         prev->pnext = ssid;
1958                         return 0;
1959                 }
1960         }
1961
1962         /* First network for this priority - add a new priority list */
1963         nlist = os_realloc_array(config->pssid, config->num_prio + 1,
1964                                  sizeof(struct wpa_ssid *));
1965         if (nlist == NULL)
1966                 return -1;
1967
1968         for (prio = 0; prio < config->num_prio; prio++) {
1969                 if (nlist[prio]->priority < ssid->priority) {
1970                         os_memmove(&nlist[prio + 1], &nlist[prio],
1971                                    (config->num_prio - prio) *
1972                                    sizeof(struct wpa_ssid *));
1973                         break;
1974                 }
1975         }
1976
1977         nlist[prio] = ssid;
1978         config->num_prio++;
1979         config->pssid = nlist;
1980
1981         return 0;
1982 }
1983
1984
1985 /**
1986  * wpa_config_update_prio_list - Update network priority list
1987  * @config: Configuration data from wpa_config_read()
1988  * Returns: 0 on success, -1 on failure
1989  *
1990  * This function is called to update the priority list of networks in the
1991  * configuration when a network is being added or removed. This is also called
1992  * if a priority for a network is changed.
1993  */
1994 int wpa_config_update_prio_list(struct wpa_config *config)
1995 {
1996         struct wpa_ssid *ssid;
1997         int ret = 0;
1998
1999         os_free(config->pssid);
2000         config->pssid = NULL;
2001         config->num_prio = 0;
2002
2003         ssid = config->ssid;
2004         while (ssid) {
2005                 ssid->pnext = NULL;
2006                 if (wpa_config_add_prio_network(config, ssid) < 0)
2007                         ret = -1;
2008                 ssid = ssid->next;
2009         }
2010
2011         return ret;
2012 }
2013
2014
2015 #ifdef IEEE8021X_EAPOL
2016 static void eap_peer_config_free(struct eap_peer_config *eap)
2017 {
2018         os_free(eap->eap_methods);
2019         bin_clear_free(eap->identity, eap->identity_len);
2020         os_free(eap->anonymous_identity);
2021         bin_clear_free(eap->password, eap->password_len);
2022         os_free(eap->ca_cert);
2023         os_free(eap->ca_path);
2024         os_free(eap->client_cert);
2025         os_free(eap->private_key);
2026         str_clear_free(eap->private_key_passwd);
2027         os_free(eap->dh_file);
2028         os_free(eap->subject_match);
2029         os_free(eap->altsubject_match);
2030         os_free(eap->domain_suffix_match);
2031         os_free(eap->ca_cert2);
2032         os_free(eap->ca_path2);
2033         os_free(eap->client_cert2);
2034         os_free(eap->private_key2);
2035         str_clear_free(eap->private_key2_passwd);
2036         os_free(eap->dh_file2);
2037         os_free(eap->subject_match2);
2038         os_free(eap->altsubject_match2);
2039         os_free(eap->domain_suffix_match2);
2040         os_free(eap->phase1);
2041         os_free(eap->phase2);
2042         os_free(eap->pcsc);
2043         str_clear_free(eap->pin);
2044         os_free(eap->engine_id);
2045         os_free(eap->key_id);
2046         os_free(eap->cert_id);
2047         os_free(eap->ca_cert_id);
2048         os_free(eap->key2_id);
2049         os_free(eap->cert2_id);
2050         os_free(eap->ca_cert2_id);
2051         str_clear_free(eap->pin2);
2052         os_free(eap->engine2_id);
2053         os_free(eap->otp);
2054         os_free(eap->pending_req_otp);
2055         os_free(eap->pac_file);
2056         bin_clear_free(eap->new_password, eap->new_password_len);
2057         str_clear_free(eap->external_sim_resp);
2058         os_free(eap->openssl_ciphers);
2059 }
2060 #endif /* IEEE8021X_EAPOL */
2061
2062
2063 /**
2064  * wpa_config_free_ssid - Free network/ssid configuration data
2065  * @ssid: Configuration data for the network
2066  *
2067  * This function frees all resources allocated for the network configuration
2068  * data.
2069  */
2070 void wpa_config_free_ssid(struct wpa_ssid *ssid)
2071 {
2072         struct psk_list_entry *psk;
2073
2074         os_free(ssid->ssid);
2075         os_memset(ssid->psk, 0, sizeof(ssid->psk));
2076         str_clear_free(ssid->passphrase);
2077         os_free(ssid->ext_psk);
2078 #ifdef IEEE8021X_EAPOL
2079         eap_peer_config_free(&ssid->eap);
2080 #endif /* IEEE8021X_EAPOL */
2081         os_free(ssid->id_str);
2082         os_free(ssid->scan_freq);
2083         os_free(ssid->freq_list);
2084         os_free(ssid->bgscan);
2085         os_free(ssid->p2p_client_list);
2086 #ifdef CONFIG_HT_OVERRIDES
2087         os_free(ssid->ht_mcs);
2088 #endif /* CONFIG_HT_OVERRIDES */
2089 #ifdef CONFIG_MESH
2090         os_free(ssid->mesh_basic_rates);
2091 #endif /* CONFIG_MESH */
2092         while ((psk = dl_list_first(&ssid->psk_list, struct psk_list_entry,
2093                                     list))) {
2094                 dl_list_del(&psk->list);
2095                 os_free(psk);
2096         }
2097         os_free(ssid);
2098 }
2099
2100
2101 void wpa_config_free_cred(struct wpa_cred *cred)
2102 {
2103         size_t i;
2104
2105         os_free(cred->realm);
2106         str_clear_free(cred->username);
2107         str_clear_free(cred->password);
2108         os_free(cred->ca_cert);
2109         os_free(cred->client_cert);
2110         os_free(cred->private_key);
2111         str_clear_free(cred->private_key_passwd);
2112         os_free(cred->imsi);
2113         str_clear_free(cred->milenage);
2114         for (i = 0; i < cred->num_domain; i++)
2115                 os_free(cred->domain[i]);
2116         os_free(cred->domain);
2117         os_free(cred->domain_suffix_match);
2118         os_free(cred->eap_method);
2119         os_free(cred->phase1);
2120         os_free(cred->phase2);
2121         os_free(cred->excluded_ssid);
2122         os_free(cred->roaming_partner);
2123         os_free(cred->provisioning_sp);
2124         for (i = 0; i < cred->num_req_conn_capab; i++)
2125                 os_free(cred->req_conn_capab_port[i]);
2126         os_free(cred->req_conn_capab_port);
2127         os_free(cred->req_conn_capab_proto);
2128         os_free(cred);
2129 }
2130
2131
2132 void wpa_config_flush_blobs(struct wpa_config *config)
2133 {
2134 #ifndef CONFIG_NO_CONFIG_BLOBS
2135         struct wpa_config_blob *blob, *prev;
2136
2137         blob = config->blobs;
2138         config->blobs = NULL;
2139         while (blob) {
2140                 prev = blob;
2141                 blob = blob->next;
2142                 wpa_config_free_blob(prev);
2143         }
2144 #endif /* CONFIG_NO_CONFIG_BLOBS */
2145 }
2146
2147
2148 /**
2149  * wpa_config_free - Free configuration data
2150  * @config: Configuration data from wpa_config_read()
2151  *
2152  * This function frees all resources allocated for the configuration data by
2153  * wpa_config_read().
2154  */
2155 void wpa_config_free(struct wpa_config *config)
2156 {
2157         struct wpa_ssid *ssid, *prev = NULL;
2158         struct wpa_cred *cred, *cprev;
2159
2160         ssid = config->ssid;
2161         while (ssid) {
2162                 prev = ssid;
2163                 ssid = ssid->next;
2164                 wpa_config_free_ssid(prev);
2165         }
2166
2167         cred = config->cred;
2168         while (cred) {
2169                 cprev = cred;
2170                 cred = cred->next;
2171                 wpa_config_free_cred(cprev);
2172         }
2173
2174         wpa_config_flush_blobs(config);
2175
2176         wpabuf_free(config->wps_vendor_ext_m1);
2177         os_free(config->ctrl_interface);
2178         os_free(config->ctrl_interface_group);
2179         os_free(config->opensc_engine_path);
2180         os_free(config->pkcs11_engine_path);
2181         os_free(config->pkcs11_module_path);
2182         os_free(config->openssl_ciphers);
2183         os_free(config->pcsc_reader);
2184         str_clear_free(config->pcsc_pin);
2185         os_free(config->driver_param);
2186         os_free(config->device_name);
2187         os_free(config->manufacturer);
2188         os_free(config->model_name);
2189         os_free(config->model_number);
2190         os_free(config->serial_number);
2191         os_free(config->config_methods);
2192         os_free(config->p2p_ssid_postfix);
2193         os_free(config->pssid);
2194         os_free(config->p2p_pref_chan);
2195         os_free(config->p2p_no_go_freq.range);
2196         os_free(config->autoscan);
2197         os_free(config->freq_list);
2198         wpabuf_free(config->wps_nfc_dh_pubkey);
2199         wpabuf_free(config->wps_nfc_dh_privkey);
2200         wpabuf_free(config->wps_nfc_dev_pw);
2201         os_free(config->ext_password_backend);
2202         os_free(config->sae_groups);
2203         wpabuf_free(config->ap_vendor_elements);
2204         os_free(config->osu_dir);
2205         os_free(config->wowlan_triggers);
2206         os_free(config);
2207 }
2208
2209
2210 /**
2211  * wpa_config_foreach_network - Iterate over each configured network
2212  * @config: Configuration data from wpa_config_read()
2213  * @func: Callback function to process each network
2214  * @arg: Opaque argument to pass to callback function
2215  *
2216  * Iterate over the set of configured networks calling the specified
2217  * function for each item. We guard against callbacks removing the
2218  * supplied network.
2219  */
2220 void wpa_config_foreach_network(struct wpa_config *config,
2221                                 void (*func)(void *, struct wpa_ssid *),
2222                                 void *arg)
2223 {
2224         struct wpa_ssid *ssid, *next;
2225
2226         ssid = config->ssid;
2227         while (ssid) {
2228                 next = ssid->next;
2229                 func(arg, ssid);
2230                 ssid = next;
2231         }
2232 }
2233
2234
2235 /**
2236  * wpa_config_get_network - Get configured network based on id
2237  * @config: Configuration data from wpa_config_read()
2238  * @id: Unique network id to search for
2239  * Returns: Network configuration or %NULL if not found
2240  */
2241 struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id)
2242 {
2243         struct wpa_ssid *ssid;
2244
2245         ssid = config->ssid;
2246         while (ssid) {
2247                 if (id == ssid->id)
2248                         break;
2249                 ssid = ssid->next;
2250         }
2251
2252         return ssid;
2253 }
2254
2255
2256 /**
2257  * wpa_config_add_network - Add a new network with empty configuration
2258  * @config: Configuration data from wpa_config_read()
2259  * Returns: The new network configuration or %NULL if operation failed
2260  */
2261 struct wpa_ssid * wpa_config_add_network(struct wpa_config *config)
2262 {
2263         int id;
2264         struct wpa_ssid *ssid, *last = NULL;
2265
2266         id = -1;
2267         ssid = config->ssid;
2268         while (ssid) {
2269                 if (ssid->id > id)
2270                         id = ssid->id;
2271                 last = ssid;
2272                 ssid = ssid->next;
2273         }
2274         id++;
2275
2276         ssid = os_zalloc(sizeof(*ssid));
2277         if (ssid == NULL)
2278                 return NULL;
2279         ssid->id = id;
2280         dl_list_init(&ssid->psk_list);
2281         if (last)
2282                 last->next = ssid;
2283         else
2284                 config->ssid = ssid;
2285
2286         wpa_config_update_prio_list(config);
2287
2288         return ssid;
2289 }
2290
2291
2292 /**
2293  * wpa_config_remove_network - Remove a configured network based on id
2294  * @config: Configuration data from wpa_config_read()
2295  * @id: Unique network id to search for
2296  * Returns: 0 on success, or -1 if the network was not found
2297  */
2298 int wpa_config_remove_network(struct wpa_config *config, int id)
2299 {
2300         struct wpa_ssid *ssid, *prev = NULL;
2301
2302         ssid = config->ssid;
2303         while (ssid) {
2304                 if (id == ssid->id)
2305                         break;
2306                 prev = ssid;
2307                 ssid = ssid->next;
2308         }
2309
2310         if (ssid == NULL)
2311                 return -1;
2312
2313         if (prev)
2314                 prev->next = ssid->next;
2315         else
2316                 config->ssid = ssid->next;
2317
2318         wpa_config_update_prio_list(config);
2319         wpa_config_free_ssid(ssid);
2320         return 0;
2321 }
2322
2323
2324 /**
2325  * wpa_config_set_network_defaults - Set network default values
2326  * @ssid: Pointer to network configuration data
2327  */
2328 void wpa_config_set_network_defaults(struct wpa_ssid *ssid)
2329 {
2330         ssid->proto = DEFAULT_PROTO;
2331         ssid->pairwise_cipher = DEFAULT_PAIRWISE;
2332         ssid->group_cipher = DEFAULT_GROUP;
2333         ssid->key_mgmt = DEFAULT_KEY_MGMT;
2334         ssid->bg_scan_period = DEFAULT_BG_SCAN_PERIOD;
2335 #ifdef IEEE8021X_EAPOL
2336         ssid->eapol_flags = DEFAULT_EAPOL_FLAGS;
2337         ssid->eap_workaround = DEFAULT_EAP_WORKAROUND;
2338         ssid->eap.fragment_size = DEFAULT_FRAGMENT_SIZE;
2339         ssid->eap.sim_num = DEFAULT_USER_SELECTED_SIM;
2340 #endif /* IEEE8021X_EAPOL */
2341 #ifdef CONFIG_MESH
2342         ssid->mesh_ht_mode = DEFAULT_MESH_HT_MODE;
2343         ssid->dot11MeshMaxRetries = DEFAULT_MESH_MAX_RETRIES;
2344         ssid->dot11MeshRetryTimeout = DEFAULT_MESH_RETRY_TIMEOUT;
2345         ssid->dot11MeshConfirmTimeout = DEFAULT_MESH_CONFIRM_TIMEOUT;
2346         ssid->dot11MeshHoldingTimeout = DEFAULT_MESH_HOLDING_TIMEOUT;
2347 #endif /* CONFIG_MESH */
2348 #ifdef CONFIG_HT_OVERRIDES
2349         ssid->disable_ht = DEFAULT_DISABLE_HT;
2350         ssid->disable_ht40 = DEFAULT_DISABLE_HT40;
2351         ssid->disable_sgi = DEFAULT_DISABLE_SGI;
2352         ssid->disable_ldpc = DEFAULT_DISABLE_LDPC;
2353         ssid->disable_max_amsdu = DEFAULT_DISABLE_MAX_AMSDU;
2354         ssid->ampdu_factor = DEFAULT_AMPDU_FACTOR;
2355         ssid->ampdu_density = DEFAULT_AMPDU_DENSITY;
2356 #endif /* CONFIG_HT_OVERRIDES */
2357 #ifdef CONFIG_VHT_OVERRIDES
2358         ssid->vht_rx_mcs_nss_1 = -1;
2359         ssid->vht_rx_mcs_nss_2 = -1;
2360         ssid->vht_rx_mcs_nss_3 = -1;
2361         ssid->vht_rx_mcs_nss_4 = -1;
2362         ssid->vht_rx_mcs_nss_5 = -1;
2363         ssid->vht_rx_mcs_nss_6 = -1;
2364         ssid->vht_rx_mcs_nss_7 = -1;
2365         ssid->vht_rx_mcs_nss_8 = -1;
2366         ssid->vht_tx_mcs_nss_1 = -1;
2367         ssid->vht_tx_mcs_nss_2 = -1;
2368         ssid->vht_tx_mcs_nss_3 = -1;
2369         ssid->vht_tx_mcs_nss_4 = -1;
2370         ssid->vht_tx_mcs_nss_5 = -1;
2371         ssid->vht_tx_mcs_nss_6 = -1;
2372         ssid->vht_tx_mcs_nss_7 = -1;
2373         ssid->vht_tx_mcs_nss_8 = -1;
2374 #endif /* CONFIG_VHT_OVERRIDES */
2375         ssid->proactive_key_caching = -1;
2376 #ifdef CONFIG_IEEE80211W
2377         ssid->ieee80211w = MGMT_FRAME_PROTECTION_DEFAULT;
2378 #endif /* CONFIG_IEEE80211W */
2379         ssid->mac_addr = -1;
2380 }
2381
2382
2383 /**
2384  * wpa_config_set - Set a variable in network configuration
2385  * @ssid: Pointer to network configuration data
2386  * @var: Variable name, e.g., "ssid"
2387  * @value: Variable value
2388  * @line: Line number in configuration file or 0 if not used
2389  * Returns: 0 on success, -1 on failure
2390  *
2391  * This function can be used to set network configuration variables based on
2392  * both the configuration file and management interface input. The value
2393  * parameter must be in the same format as the text-based configuration file is
2394  * using. For example, strings are using double quotation marks.
2395  */
2396 int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
2397                    int line)
2398 {
2399         size_t i;
2400         int ret = 0;
2401
2402         if (ssid == NULL || var == NULL || value == NULL)
2403                 return -1;
2404
2405         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2406                 const struct parse_data *field = &ssid_fields[i];
2407                 if (os_strcmp(var, field->name) != 0)
2408                         continue;
2409
2410                 if (field->parser(field, ssid, line, value)) {
2411                         if (line) {
2412                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
2413                                            "parse %s '%s'.", line, var, value);
2414                         }
2415                         ret = -1;
2416                 }
2417                 break;
2418         }
2419         if (i == NUM_SSID_FIELDS) {
2420                 if (line) {
2421                         wpa_printf(MSG_ERROR, "Line %d: unknown network field "
2422                                    "'%s'.", line, var);
2423                 }
2424                 ret = -1;
2425         }
2426
2427         return ret;
2428 }
2429
2430
2431 int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
2432                           const char *value)
2433 {
2434         size_t len;
2435         char *buf;
2436         int ret;
2437
2438         len = os_strlen(value);
2439         buf = os_malloc(len + 3);
2440         if (buf == NULL)
2441                 return -1;
2442         buf[0] = '"';
2443         os_memcpy(buf + 1, value, len);
2444         buf[len + 1] = '"';
2445         buf[len + 2] = '\0';
2446         ret = wpa_config_set(ssid, var, buf, 0);
2447         os_free(buf);
2448         return ret;
2449 }
2450
2451
2452 /**
2453  * wpa_config_get_all - Get all options from network configuration
2454  * @ssid: Pointer to network configuration data
2455  * @get_keys: Determines if keys/passwords will be included in returned list
2456  *      (if they may be exported)
2457  * Returns: %NULL terminated list of all set keys and their values in the form
2458  * of [key1, val1, key2, val2, ... , NULL]
2459  *
2460  * This function can be used to get list of all configured network properties.
2461  * The caller is responsible for freeing the returned list and all its
2462  * elements.
2463  */
2464 char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys)
2465 {
2466         const struct parse_data *field;
2467         char *key, *value;
2468         size_t i;
2469         char **props;
2470         int fields_num;
2471
2472         get_keys = get_keys && ssid->export_keys;
2473
2474         props = os_calloc(2 * NUM_SSID_FIELDS + 1, sizeof(char *));
2475         if (!props)
2476                 return NULL;
2477
2478         fields_num = 0;
2479         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2480                 field = &ssid_fields[i];
2481                 if (field->key_data && !get_keys)
2482                         continue;
2483                 value = field->writer(field, ssid);
2484                 if (value == NULL)
2485                         continue;
2486                 if (os_strlen(value) == 0) {
2487                         os_free(value);
2488                         continue;
2489                 }
2490
2491                 key = os_strdup(field->name);
2492                 if (key == NULL) {
2493                         os_free(value);
2494                         goto err;
2495                 }
2496
2497                 props[fields_num * 2] = key;
2498                 props[fields_num * 2 + 1] = value;
2499
2500                 fields_num++;
2501         }
2502
2503         return props;
2504
2505 err:
2506         value = *props;
2507         while (value)
2508                 os_free(value++);
2509         os_free(props);
2510         return NULL;
2511 }
2512
2513
2514 #ifndef NO_CONFIG_WRITE
2515 /**
2516  * wpa_config_get - Get a variable in network configuration
2517  * @ssid: Pointer to network configuration data
2518  * @var: Variable name, e.g., "ssid"
2519  * Returns: Value of the variable or %NULL on failure
2520  *
2521  * This function can be used to get network configuration variables. The
2522  * returned value is a copy of the configuration variable in text format, i.e,.
2523  * the same format that the text-based configuration file and wpa_config_set()
2524  * are using for the value. The caller is responsible for freeing the returned
2525  * value.
2526  */
2527 char * wpa_config_get(struct wpa_ssid *ssid, const char *var)
2528 {
2529         size_t i;
2530
2531         if (ssid == NULL || var == NULL)
2532                 return NULL;
2533
2534         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2535                 const struct parse_data *field = &ssid_fields[i];
2536                 if (os_strcmp(var, field->name) == 0)
2537                         return field->writer(field, ssid);
2538         }
2539
2540         return NULL;
2541 }
2542
2543
2544 /**
2545  * wpa_config_get_no_key - Get a variable in network configuration (no keys)
2546  * @ssid: Pointer to network configuration data
2547  * @var: Variable name, e.g., "ssid"
2548  * Returns: Value of the variable or %NULL on failure
2549  *
2550  * This function can be used to get network configuration variable like
2551  * wpa_config_get(). The only difference is that this functions does not expose
2552  * key/password material from the configuration. In case a key/password field
2553  * is requested, the returned value is an empty string or %NULL if the variable
2554  * is not set or "*" if the variable is set (regardless of its value). The
2555  * returned value is a copy of the configuration variable in text format, i.e,.
2556  * the same format that the text-based configuration file and wpa_config_set()
2557  * are using for the value. The caller is responsible for freeing the returned
2558  * value.
2559  */
2560 char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var)
2561 {
2562         size_t i;
2563
2564         if (ssid == NULL || var == NULL)
2565                 return NULL;
2566
2567         for (i = 0; i < NUM_SSID_FIELDS; i++) {
2568                 const struct parse_data *field = &ssid_fields[i];
2569                 if (os_strcmp(var, field->name) == 0) {
2570                         char *res = field->writer(field, ssid);
2571                         if (field->key_data) {
2572                                 if (res && res[0]) {
2573                                         wpa_printf(MSG_DEBUG, "Do not allow "
2574                                                    "key_data field to be "
2575                                                    "exposed");
2576                                         str_clear_free(res);
2577                                         return os_strdup("*");
2578                                 }
2579
2580                                 os_free(res);
2581                                 return NULL;
2582                         }
2583                         return res;
2584                 }
2585         }
2586
2587         return NULL;
2588 }
2589 #endif /* NO_CONFIG_WRITE */
2590
2591
2592 /**
2593  * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
2594  * @ssid: Pointer to network configuration data
2595  *
2596  * This function must be called to update WPA PSK when either SSID or the
2597  * passphrase has changed for the network configuration.
2598  */
2599 void wpa_config_update_psk(struct wpa_ssid *ssid)
2600 {
2601 #ifndef CONFIG_NO_PBKDF2
2602         pbkdf2_sha1(ssid->passphrase, ssid->ssid, ssid->ssid_len, 4096,
2603                     ssid->psk, PMK_LEN);
2604         wpa_hexdump_key(MSG_MSGDUMP, "PSK (from passphrase)",
2605                         ssid->psk, PMK_LEN);
2606         ssid->psk_set = 1;
2607 #endif /* CONFIG_NO_PBKDF2 */
2608 }
2609
2610
2611 static int wpa_config_set_cred_req_conn_capab(struct wpa_cred *cred,
2612                                               const char *value)
2613 {
2614         u8 *proto;
2615         int **port;
2616         int *ports, *nports;
2617         const char *pos;
2618         unsigned int num_ports;
2619
2620         proto = os_realloc_array(cred->req_conn_capab_proto,
2621                                  cred->num_req_conn_capab + 1, sizeof(u8));
2622         if (proto == NULL)
2623                 return -1;
2624         cred->req_conn_capab_proto = proto;
2625
2626         port = os_realloc_array(cred->req_conn_capab_port,
2627                                 cred->num_req_conn_capab + 1, sizeof(int *));
2628         if (port == NULL)
2629                 return -1;
2630         cred->req_conn_capab_port = port;
2631
2632         proto[cred->num_req_conn_capab] = atoi(value);
2633
2634         pos = os_strchr(value, ':');
2635         if (pos == NULL) {
2636                 port[cred->num_req_conn_capab] = NULL;
2637                 cred->num_req_conn_capab++;
2638                 return 0;
2639         }
2640         pos++;
2641
2642         ports = NULL;
2643         num_ports = 0;
2644
2645         while (*pos) {
2646                 nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2647                 if (nports == NULL) {
2648                         os_free(ports);
2649                         return -1;
2650                 }
2651                 ports = nports;
2652                 ports[num_ports++] = atoi(pos);
2653
2654                 pos = os_strchr(pos, ',');
2655                 if (pos == NULL)
2656                         break;
2657                 pos++;
2658         }
2659
2660         nports = os_realloc_array(ports, num_ports + 1, sizeof(int));
2661         if (nports == NULL) {
2662                 os_free(ports);
2663                 return -1;
2664         }
2665         ports = nports;
2666         ports[num_ports] = -1;
2667
2668         port[cred->num_req_conn_capab] = ports;
2669         cred->num_req_conn_capab++;
2670         return 0;
2671 }
2672
2673
2674 int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
2675                         const char *value, int line)
2676 {
2677         char *val;
2678         size_t len;
2679
2680         if (os_strcmp(var, "temporary") == 0) {
2681                 cred->temporary = atoi(value);
2682                 return 0;
2683         }
2684
2685         if (os_strcmp(var, "priority") == 0) {
2686                 cred->priority = atoi(value);
2687                 return 0;
2688         }
2689
2690         if (os_strcmp(var, "sp_priority") == 0) {
2691                 int prio = atoi(value);
2692                 if (prio < 0 || prio > 255)
2693                         return -1;
2694                 cred->sp_priority = prio;
2695                 return 0;
2696         }
2697
2698         if (os_strcmp(var, "pcsc") == 0) {
2699                 cred->pcsc = atoi(value);
2700                 return 0;
2701         }
2702
2703         if (os_strcmp(var, "eap") == 0) {
2704                 struct eap_method_type method;
2705                 method.method = eap_peer_get_type(value, &method.vendor);
2706                 if (method.vendor == EAP_VENDOR_IETF &&
2707                     method.method == EAP_TYPE_NONE) {
2708                         wpa_printf(MSG_ERROR, "Line %d: unknown EAP type '%s' "
2709                                    "for a credential", line, value);
2710                         return -1;
2711                 }
2712                 os_free(cred->eap_method);
2713                 cred->eap_method = os_malloc(sizeof(*cred->eap_method));
2714                 if (cred->eap_method == NULL)
2715                         return -1;
2716                 os_memcpy(cred->eap_method, &method, sizeof(method));
2717                 return 0;
2718         }
2719
2720         if (os_strcmp(var, "password") == 0 &&
2721             os_strncmp(value, "ext:", 4) == 0) {
2722                 str_clear_free(cred->password);
2723                 cred->password = os_strdup(value);
2724                 cred->ext_password = 1;
2725                 return 0;
2726         }
2727
2728         if (os_strcmp(var, "update_identifier") == 0) {
2729                 cred->update_identifier = atoi(value);
2730                 return 0;
2731         }
2732
2733         if (os_strcmp(var, "min_dl_bandwidth_home") == 0) {
2734                 cred->min_dl_bandwidth_home = atoi(value);
2735                 return 0;
2736         }
2737
2738         if (os_strcmp(var, "min_ul_bandwidth_home") == 0) {
2739                 cred->min_ul_bandwidth_home = atoi(value);
2740                 return 0;
2741         }
2742
2743         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0) {
2744                 cred->min_dl_bandwidth_roaming = atoi(value);
2745                 return 0;
2746         }
2747
2748         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0) {
2749                 cred->min_ul_bandwidth_roaming = atoi(value);
2750                 return 0;
2751         }
2752
2753         if (os_strcmp(var, "max_bss_load") == 0) {
2754                 cred->max_bss_load = atoi(value);
2755                 return 0;
2756         }
2757
2758         if (os_strcmp(var, "req_conn_capab") == 0)
2759                 return wpa_config_set_cred_req_conn_capab(cred, value);
2760
2761         if (os_strcmp(var, "ocsp") == 0) {
2762                 cred->ocsp = atoi(value);
2763                 return 0;
2764         }
2765
2766         if (os_strcmp(var, "sim_num") == 0) {
2767                 cred->sim_num = atoi(value);
2768                 return 0;
2769         }
2770
2771         val = wpa_config_parse_string(value, &len);
2772         if (val == NULL) {
2773                 wpa_printf(MSG_ERROR, "Line %d: invalid field '%s' string "
2774                            "value '%s'.", line, var, value);
2775                 return -1;
2776         }
2777
2778         if (os_strcmp(var, "realm") == 0) {
2779                 os_free(cred->realm);
2780                 cred->realm = val;
2781                 return 0;
2782         }
2783
2784         if (os_strcmp(var, "username") == 0) {
2785                 str_clear_free(cred->username);
2786                 cred->username = val;
2787                 return 0;
2788         }
2789
2790         if (os_strcmp(var, "password") == 0) {
2791                 str_clear_free(cred->password);
2792                 cred->password = val;
2793                 cred->ext_password = 0;
2794                 return 0;
2795         }
2796
2797         if (os_strcmp(var, "ca_cert") == 0) {
2798                 os_free(cred->ca_cert);
2799                 cred->ca_cert = val;
2800                 return 0;
2801         }
2802
2803         if (os_strcmp(var, "client_cert") == 0) {
2804                 os_free(cred->client_cert);
2805                 cred->client_cert = val;
2806                 return 0;
2807         }
2808
2809         if (os_strcmp(var, "private_key") == 0) {
2810                 os_free(cred->private_key);
2811                 cred->private_key = val;
2812                 return 0;
2813         }
2814
2815         if (os_strcmp(var, "private_key_passwd") == 0) {
2816                 str_clear_free(cred->private_key_passwd);
2817                 cred->private_key_passwd = val;
2818                 return 0;
2819         }
2820
2821         if (os_strcmp(var, "imsi") == 0) {
2822                 os_free(cred->imsi);
2823                 cred->imsi = val;
2824                 return 0;
2825         }
2826
2827         if (os_strcmp(var, "milenage") == 0) {
2828                 str_clear_free(cred->milenage);
2829                 cred->milenage = val;
2830                 return 0;
2831         }
2832
2833         if (os_strcmp(var, "domain_suffix_match") == 0) {
2834                 os_free(cred->domain_suffix_match);
2835                 cred->domain_suffix_match = val;
2836                 return 0;
2837         }
2838
2839         if (os_strcmp(var, "domain") == 0) {
2840                 char **new_domain;
2841                 new_domain = os_realloc_array(cred->domain,
2842                                               cred->num_domain + 1,
2843                                               sizeof(char *));
2844                 if (new_domain == NULL) {
2845                         os_free(val);
2846                         return -1;
2847                 }
2848                 new_domain[cred->num_domain++] = val;
2849                 cred->domain = new_domain;
2850                 return 0;
2851         }
2852
2853         if (os_strcmp(var, "phase1") == 0) {
2854                 os_free(cred->phase1);
2855                 cred->phase1 = val;
2856                 return 0;
2857         }
2858
2859         if (os_strcmp(var, "phase2") == 0) {
2860                 os_free(cred->phase2);
2861                 cred->phase2 = val;
2862                 return 0;
2863         }
2864
2865         if (os_strcmp(var, "roaming_consortium") == 0) {
2866                 if (len < 3 || len > sizeof(cred->roaming_consortium)) {
2867                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2868                                    "roaming_consortium length %d (3..15 "
2869                                    "expected)", line, (int) len);
2870                         os_free(val);
2871                         return -1;
2872                 }
2873                 os_memcpy(cred->roaming_consortium, val, len);
2874                 cred->roaming_consortium_len = len;
2875                 os_free(val);
2876                 return 0;
2877         }
2878
2879         if (os_strcmp(var, "required_roaming_consortium") == 0) {
2880                 if (len < 3 || len > sizeof(cred->required_roaming_consortium))
2881                 {
2882                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2883                                    "required_roaming_consortium length %d "
2884                                    "(3..15 expected)", line, (int) len);
2885                         os_free(val);
2886                         return -1;
2887                 }
2888                 os_memcpy(cred->required_roaming_consortium, val, len);
2889                 cred->required_roaming_consortium_len = len;
2890                 os_free(val);
2891                 return 0;
2892         }
2893
2894         if (os_strcmp(var, "excluded_ssid") == 0) {
2895                 struct excluded_ssid *e;
2896
2897                 if (len > MAX_SSID_LEN) {
2898                         wpa_printf(MSG_ERROR, "Line %d: invalid "
2899                                    "excluded_ssid length %d", line, (int) len);
2900                         os_free(val);
2901                         return -1;
2902                 }
2903
2904                 e = os_realloc_array(cred->excluded_ssid,
2905                                      cred->num_excluded_ssid + 1,
2906                                      sizeof(struct excluded_ssid));
2907                 if (e == NULL) {
2908                         os_free(val);
2909                         return -1;
2910                 }
2911                 cred->excluded_ssid = e;
2912
2913                 e = &cred->excluded_ssid[cred->num_excluded_ssid++];
2914                 os_memcpy(e->ssid, val, len);
2915                 e->ssid_len = len;
2916
2917                 os_free(val);
2918
2919                 return 0;
2920         }
2921
2922         if (os_strcmp(var, "roaming_partner") == 0) {
2923                 struct roaming_partner *p;
2924                 char *pos;
2925
2926                 p = os_realloc_array(cred->roaming_partner,
2927                                      cred->num_roaming_partner + 1,
2928                                      sizeof(struct roaming_partner));
2929                 if (p == NULL) {
2930                         os_free(val);
2931                         return -1;
2932                 }
2933                 cred->roaming_partner = p;
2934
2935                 p = &cred->roaming_partner[cred->num_roaming_partner];
2936
2937                 pos = os_strchr(val, ',');
2938                 if (pos == NULL) {
2939                         os_free(val);
2940                         return -1;
2941                 }
2942                 *pos++ = '\0';
2943                 if (pos - val - 1 >= (int) sizeof(p->fqdn)) {
2944                         os_free(val);
2945                         return -1;
2946                 }
2947                 os_memcpy(p->fqdn, val, pos - val);
2948
2949                 p->exact_match = atoi(pos);
2950
2951                 pos = os_strchr(pos, ',');
2952                 if (pos == NULL) {
2953                         os_free(val);
2954                         return -1;
2955                 }
2956                 *pos++ = '\0';
2957
2958                 p->priority = atoi(pos);
2959
2960                 pos = os_strchr(pos, ',');
2961                 if (pos == NULL) {
2962                         os_free(val);
2963                         return -1;
2964                 }
2965                 *pos++ = '\0';
2966
2967                 if (os_strlen(pos) >= sizeof(p->country)) {
2968                         os_free(val);
2969                         return -1;
2970                 }
2971                 os_memcpy(p->country, pos, os_strlen(pos) + 1);
2972
2973                 cred->num_roaming_partner++;
2974                 os_free(val);
2975
2976                 return 0;
2977         }
2978
2979         if (os_strcmp(var, "provisioning_sp") == 0) {
2980                 os_free(cred->provisioning_sp);
2981                 cred->provisioning_sp = val;
2982                 return 0;
2983         }
2984
2985         if (line) {
2986                 wpa_printf(MSG_ERROR, "Line %d: unknown cred field '%s'.",
2987                            line, var);
2988         }
2989
2990         os_free(val);
2991
2992         return -1;
2993 }
2994
2995
2996 static char * alloc_int_str(int val)
2997 {
2998         char *buf;
2999
3000         buf = os_malloc(20);
3001         if (buf == NULL)
3002                 return NULL;
3003         os_snprintf(buf, 20, "%d", val);
3004         return buf;
3005 }
3006
3007
3008 static char * alloc_strdup(const char *str)
3009 {
3010         if (str == NULL)
3011                 return NULL;
3012         return os_strdup(str);
3013 }
3014
3015
3016 char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var)
3017 {
3018         if (os_strcmp(var, "temporary") == 0)
3019                 return alloc_int_str(cred->temporary);
3020
3021         if (os_strcmp(var, "priority") == 0)
3022                 return alloc_int_str(cred->priority);
3023
3024         if (os_strcmp(var, "sp_priority") == 0)
3025                 return alloc_int_str(cred->sp_priority);
3026
3027         if (os_strcmp(var, "pcsc") == 0)
3028                 return alloc_int_str(cred->pcsc);
3029
3030         if (os_strcmp(var, "eap") == 0) {
3031                 if (!cred->eap_method)
3032                         return NULL;
3033                 return alloc_strdup(eap_get_name(cred->eap_method[0].vendor,
3034                                                  cred->eap_method[0].method));
3035         }
3036
3037         if (os_strcmp(var, "update_identifier") == 0)
3038                 return alloc_int_str(cred->update_identifier);
3039
3040         if (os_strcmp(var, "min_dl_bandwidth_home") == 0)
3041                 return alloc_int_str(cred->min_dl_bandwidth_home);
3042
3043         if (os_strcmp(var, "min_ul_bandwidth_home") == 0)
3044                 return alloc_int_str(cred->min_ul_bandwidth_home);
3045
3046         if (os_strcmp(var, "min_dl_bandwidth_roaming") == 0)
3047                 return alloc_int_str(cred->min_dl_bandwidth_roaming);
3048
3049         if (os_strcmp(var, "min_ul_bandwidth_roaming") == 0)
3050                 return alloc_int_str(cred->min_ul_bandwidth_roaming);
3051
3052         if (os_strcmp(var, "max_bss_load") == 0)
3053                 return alloc_int_str(cred->max_bss_load);
3054
3055         if (os_strcmp(var, "req_conn_capab") == 0) {
3056                 unsigned int i;
3057                 char *buf, *end, *pos;
3058                 int ret;
3059
3060                 if (!cred->num_req_conn_capab)
3061                         return NULL;
3062
3063                 buf = os_malloc(4000);
3064                 if (buf == NULL)
3065                         return NULL;
3066                 pos = buf;
3067                 end = pos + 4000;
3068                 for (i = 0; i < cred->num_req_conn_capab; i++) {
3069                         int *ports;
3070
3071                         ret = os_snprintf(pos, end - pos, "%s%u",
3072                                           i > 0 ? "\n" : "",
3073                                           cred->req_conn_capab_proto[i]);
3074                         if (ret < 0 || ret >= end - pos)
3075                                 return buf;
3076                         pos += ret;
3077
3078                         ports = cred->req_conn_capab_port[i];
3079                         if (ports) {
3080                                 int j;
3081                                 for (j = 0; ports[j] != -1; j++) {
3082                                         ret = os_snprintf(pos, end - pos,
3083                                                           "%s%d",
3084                                                           j > 0 ? "," : ":",
3085                                                           ports[j]);
3086                                         if (ret < 0 || ret >= end - pos)
3087                                                 return buf;
3088                                         pos += ret;
3089                                 }
3090                         }
3091                 }
3092
3093                 return buf;
3094         }
3095
3096         if (os_strcmp(var, "ocsp") == 0)
3097                 return alloc_int_str(cred->ocsp);
3098
3099         if (os_strcmp(var, "realm") == 0)
3100                 return alloc_strdup(cred->realm);
3101
3102         if (os_strcmp(var, "username") == 0)
3103                 return alloc_strdup(cred->username);
3104
3105         if (os_strcmp(var, "password") == 0) {
3106                 if (!cred->password)
3107                         return NULL;
3108                 return alloc_strdup("*");
3109         }
3110
3111         if (os_strcmp(var, "ca_cert") == 0)
3112                 return alloc_strdup(cred->ca_cert);
3113
3114         if (os_strcmp(var, "client_cert") == 0)
3115                 return alloc_strdup(cred->client_cert);
3116
3117         if (os_strcmp(var, "private_key") == 0)
3118                 return alloc_strdup(cred->private_key);
3119
3120         if (os_strcmp(var, "private_key_passwd") == 0) {
3121                 if (!cred->private_key_passwd)
3122                         return NULL;
3123                 return alloc_strdup("*");
3124         }
3125
3126         if (os_strcmp(var, "imsi") == 0)
3127                 return alloc_strdup(cred->imsi);
3128
3129         if (os_strcmp(var, "milenage") == 0) {
3130                 if (!(cred->milenage))
3131                         return NULL;
3132                 return alloc_strdup("*");
3133         }
3134
3135         if (os_strcmp(var, "domain_suffix_match") == 0)
3136                 return alloc_strdup(cred->domain_suffix_match);
3137
3138         if (os_strcmp(var, "domain") == 0) {
3139                 unsigned int i;
3140                 char *buf, *end, *pos;
3141                 int ret;
3142
3143                 if (!cred->num_domain)
3144                         return NULL;
3145
3146                 buf = os_malloc(4000);
3147                 if (buf == NULL)
3148                         return NULL;
3149                 pos = buf;
3150                 end = pos + 4000;
3151
3152                 for (i = 0; i < cred->num_domain; i++) {
3153                         ret = os_snprintf(pos, end - pos, "%s%s",
3154                                           i > 0 ? "\n" : "", cred->domain[i]);
3155                         if (ret < 0 || ret >= end - pos)
3156                                 return buf;
3157                         pos += ret;
3158                 }
3159
3160                 return buf;
3161         }
3162
3163         if (os_strcmp(var, "phase1") == 0)
3164                 return alloc_strdup(cred->phase1);
3165
3166         if (os_strcmp(var, "phase2") == 0)
3167                 return alloc_strdup(cred->phase2);
3168
3169         if (os_strcmp(var, "roaming_consortium") == 0) {
3170                 size_t buflen;
3171                 char *buf;
3172
3173                 if (!cred->roaming_consortium_len)
3174                         return NULL;
3175                 buflen = cred->roaming_consortium_len * 2 + 1;
3176                 buf = os_malloc(buflen);
3177                 if (buf == NULL)
3178                         return NULL;
3179                 wpa_snprintf_hex(buf, buflen, cred->roaming_consortium,
3180                                  cred->roaming_consortium_len);
3181                 return buf;
3182         }
3183
3184         if (os_strcmp(var, "required_roaming_consortium") == 0) {
3185                 size_t buflen;
3186                 char *buf;
3187
3188                 if (!cred->required_roaming_consortium_len)
3189                         return NULL;
3190                 buflen = cred->required_roaming_consortium_len * 2 + 1;
3191                 buf = os_malloc(buflen);
3192                 if (buf == NULL)
3193                         return NULL;
3194                 wpa_snprintf_hex(buf, buflen, cred->required_roaming_consortium,
3195                                  cred->required_roaming_consortium_len);
3196                 return buf;
3197         }
3198
3199         if (os_strcmp(var, "excluded_ssid") == 0) {
3200                 unsigned int i;
3201                 char *buf, *end, *pos;
3202
3203                 if (!cred->num_excluded_ssid)
3204                         return NULL;
3205
3206                 buf = os_malloc(4000);
3207                 if (buf == NULL)
3208                         return NULL;
3209                 pos = buf;
3210                 end = pos + 4000;
3211
3212                 for (i = 0; i < cred->num_excluded_ssid; i++) {
3213                         struct excluded_ssid *e;
3214                         int ret;
3215
3216                         e = &cred->excluded_ssid[i];
3217                         ret = os_snprintf(pos, end - pos, "%s%s",
3218                                           i > 0 ? "\n" : "",
3219                                           wpa_ssid_txt(e->ssid, e->ssid_len));
3220                         if (ret < 0 || ret >= end - pos)
3221                                 return buf;
3222                         pos += ret;
3223                 }
3224
3225                 return buf;
3226         }
3227
3228         if (os_strcmp(var, "roaming_partner") == 0) {
3229                 unsigned int i;
3230                 char *buf, *end, *pos;
3231
3232                 if (!cred->num_roaming_partner)
3233                         return NULL;
3234
3235                 buf = os_malloc(4000);
3236                 if (buf == NULL)
3237                         return NULL;
3238                 pos = buf;
3239                 end = pos + 4000;
3240
3241                 for (i = 0; i < cred->num_roaming_partner; i++) {
3242                         struct roaming_partner *p;
3243                         int ret;
3244
3245                         p = &cred->roaming_partner[i];
3246                         ret = os_snprintf(pos, end - pos, "%s%s,%d,%u,%s",
3247                                           i > 0 ? "\n" : "",
3248                                           p->fqdn, p->exact_match, p->priority,
3249                                           p->country);
3250                         if (ret < 0 || ret >= end - pos)
3251                                 return buf;
3252                         pos += ret;
3253                 }
3254
3255                 return buf;
3256         }
3257
3258         if (os_strcmp(var, "provisioning_sp") == 0)
3259                 return alloc_strdup(cred->provisioning_sp);
3260
3261         return NULL;
3262 }
3263
3264
3265 struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id)
3266 {
3267         struct wpa_cred *cred;
3268
3269         cred = config->cred;
3270         while (cred) {
3271                 if (id == cred->id)
3272                         break;
3273                 cred = cred->next;
3274         }
3275
3276         return cred;
3277 }
3278
3279
3280 struct wpa_cred * wpa_config_add_cred(struct wpa_config *config)
3281 {
3282         int id;
3283         struct wpa_cred *cred, *last = NULL;
3284
3285         id = -1;
3286         cred = config->cred;
3287         while (cred) {
3288                 if (cred->id > id)
3289                         id = cred->id;
3290                 last = cred;
3291                 cred = cred->next;
3292         }
3293         id++;
3294
3295         cred = os_zalloc(sizeof(*cred));
3296         if (cred == NULL)
3297                 return NULL;
3298         cred->id = id;
3299         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
3300         if (last)
3301                 last->next = cred;
3302         else
3303                 config->cred = cred;
3304
3305         return cred;
3306 }
3307
3308
3309 int wpa_config_remove_cred(struct wpa_config *config, int id)
3310 {
3311         struct wpa_cred *cred, *prev = NULL;
3312
3313         cred = config->cred;
3314         while (cred) {
3315                 if (id == cred->id)
3316                         break;
3317                 prev = cred;
3318                 cred = cred->next;
3319         }
3320
3321         if (cred == NULL)
3322                 return -1;
3323
3324         if (prev)
3325                 prev->next = cred->next;
3326         else
3327                 config->cred = cred->next;
3328
3329         wpa_config_free_cred(cred);
3330         return 0;
3331 }
3332
3333
3334 #ifndef CONFIG_NO_CONFIG_BLOBS
3335 /**
3336  * wpa_config_get_blob - Get a named configuration blob
3337  * @config: Configuration data from wpa_config_read()
3338  * @name: Name of the blob
3339  * Returns: Pointer to blob data or %NULL if not found
3340  */
3341 const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
3342                                                    const char *name)
3343 {
3344         struct wpa_config_blob *blob = config->blobs;
3345
3346         while (blob) {
3347                 if (os_strcmp(blob->name, name) == 0)
3348                         return blob;
3349                 blob = blob->next;
3350         }
3351         return NULL;
3352 }
3353
3354
3355 /**
3356  * wpa_config_set_blob - Set or add a named configuration blob
3357  * @config: Configuration data from wpa_config_read()
3358  * @blob: New value for the blob
3359  *
3360  * Adds a new configuration blob or replaces the current value of an existing
3361  * blob.
3362  */
3363 void wpa_config_set_blob(struct wpa_config *config,
3364                          struct wpa_config_blob *blob)
3365 {
3366         wpa_config_remove_blob(config, blob->name);
3367         blob->next = config->blobs;
3368         config->blobs = blob;
3369 }
3370
3371
3372 /**
3373  * wpa_config_free_blob - Free blob data
3374  * @blob: Pointer to blob to be freed
3375  */
3376 void wpa_config_free_blob(struct wpa_config_blob *blob)
3377 {
3378         if (blob) {
3379                 os_free(blob->name);
3380                 bin_clear_free(blob->data, blob->len);
3381                 os_free(blob);
3382         }
3383 }
3384
3385
3386 /**
3387  * wpa_config_remove_blob - Remove a named configuration blob
3388  * @config: Configuration data from wpa_config_read()
3389  * @name: Name of the blob to remove
3390  * Returns: 0 if blob was removed or -1 if blob was not found
3391  */
3392 int wpa_config_remove_blob(struct wpa_config *config, const char *name)
3393 {
3394         struct wpa_config_blob *pos = config->blobs, *prev = NULL;
3395
3396         while (pos) {
3397                 if (os_strcmp(pos->name, name) == 0) {
3398                         if (prev)
3399                                 prev->next = pos->next;
3400                         else
3401                                 config->blobs = pos->next;
3402                         wpa_config_free_blob(pos);
3403                         return 0;
3404                 }
3405                 prev = pos;
3406                 pos = pos->next;
3407         }
3408
3409         return -1;
3410 }
3411 #endif /* CONFIG_NO_CONFIG_BLOBS */
3412
3413
3414 /**
3415  * wpa_config_alloc_empty - Allocate an empty configuration
3416  * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
3417  * socket
3418  * @driver_param: Driver parameters
3419  * Returns: Pointer to allocated configuration data or %NULL on failure
3420  */
3421 struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
3422                                            const char *driver_param)
3423 {
3424         struct wpa_config *config;
3425         const int aCWmin = 4, aCWmax = 10;
3426         const struct hostapd_wmm_ac_params ac_bk =
3427                 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
3428         const struct hostapd_wmm_ac_params ac_be =
3429                 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
3430         const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
3431                 { aCWmin - 1, aCWmin, 2, 3000 / 32, 0 };
3432         const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
3433                 { aCWmin - 2, aCWmin - 1, 2, 1500 / 32, 0 };
3434
3435         config = os_zalloc(sizeof(*config));
3436         if (config == NULL)
3437                 return NULL;
3438         config->eapol_version = DEFAULT_EAPOL_VERSION;
3439         config->ap_scan = DEFAULT_AP_SCAN;
3440         config->user_mpm = DEFAULT_USER_MPM;
3441         config->fast_reauth = DEFAULT_FAST_REAUTH;
3442         config->p2p_go_intent = DEFAULT_P2P_GO_INTENT;
3443         config->p2p_intra_bss = DEFAULT_P2P_INTRA_BSS;
3444         config->p2p_go_max_inactivity = DEFAULT_P2P_GO_MAX_INACTIVITY;
3445         config->p2p_optimize_listen_chan = DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN;
3446         config->bss_max_count = DEFAULT_BSS_MAX_COUNT;
3447         config->bss_expiration_age = DEFAULT_BSS_EXPIRATION_AGE;
3448         config->bss_expiration_scan_count = DEFAULT_BSS_EXPIRATION_SCAN_COUNT;
3449         config->max_num_sta = DEFAULT_MAX_NUM_STA;
3450         config->access_network_type = DEFAULT_ACCESS_NETWORK_TYPE;
3451         config->scan_cur_freq = DEFAULT_SCAN_CUR_FREQ;
3452         config->wmm_ac_params[0] = ac_be;
3453         config->wmm_ac_params[1] = ac_bk;
3454         config->wmm_ac_params[2] = ac_vi;
3455         config->wmm_ac_params[3] = ac_vo;
3456         config->p2p_search_delay = DEFAULT_P2P_SEARCH_DELAY;
3457         config->rand_addr_lifetime = DEFAULT_RAND_ADDR_LIFETIME;
3458         config->key_mgmt_offload = DEFAULT_KEY_MGMT_OFFLOAD;
3459
3460         if (ctrl_interface)
3461                 config->ctrl_interface = os_strdup(ctrl_interface);
3462         if (driver_param)
3463                 config->driver_param = os_strdup(driver_param);
3464
3465         return config;
3466 }
3467
3468
3469 #ifndef CONFIG_NO_STDOUT_DEBUG
3470 /**
3471  * wpa_config_debug_dump_networks - Debug dump of configured networks
3472  * @config: Configuration data from wpa_config_read()
3473  */
3474 void wpa_config_debug_dump_networks(struct wpa_config *config)
3475 {
3476         int prio;
3477         struct wpa_ssid *ssid;
3478
3479         for (prio = 0; prio < config->num_prio; prio++) {
3480                 ssid = config->pssid[prio];
3481                 wpa_printf(MSG_DEBUG, "Priority group %d",
3482                            ssid->priority);
3483                 while (ssid) {
3484                         wpa_printf(MSG_DEBUG, "   id=%d ssid='%s'",
3485                                    ssid->id,
3486                                    wpa_ssid_txt(ssid->ssid, ssid->ssid_len));
3487                         ssid = ssid->pnext;
3488                 }
3489         }
3490 }
3491 #endif /* CONFIG_NO_STDOUT_DEBUG */
3492
3493
3494 struct global_parse_data {
3495         char *name;
3496         int (*parser)(const struct global_parse_data *data,
3497                       struct wpa_config *config, int line, const char *value);
3498         void *param1, *param2, *param3;
3499         unsigned int changed_flag;
3500 };
3501
3502
3503 static int wpa_global_config_parse_int(const struct global_parse_data *data,
3504                                        struct wpa_config *config, int line,
3505                                        const char *pos)
3506 {
3507         int val, *dst;
3508         char *end;
3509
3510         dst = (int *) (((u8 *) config) + (long) data->param1);
3511         val = strtol(pos, &end, 0);
3512         if (*end) {
3513                 wpa_printf(MSG_ERROR, "Line %d: invalid number \"%s\"",
3514                            line, pos);
3515                 return -1;
3516         }
3517         *dst = val;
3518
3519         wpa_printf(MSG_DEBUG, "%s=%d", data->name, *dst);
3520
3521         if (data->param2 && *dst < (long) data->param2) {
3522                 wpa_printf(MSG_ERROR, "Line %d: too small %s (value=%d "
3523                            "min_value=%ld)", line, data->name, *dst,
3524                            (long) data->param2);
3525                 *dst = (long) data->param2;
3526                 return -1;
3527         }
3528
3529         if (data->param3 && *dst > (long) data->param3) {
3530                 wpa_printf(MSG_ERROR, "Line %d: too large %s (value=%d "
3531                            "max_value=%ld)", line, data->name, *dst,
3532                            (long) data->param3);
3533                 *dst = (long) data->param3;
3534                 return -1;
3535         }
3536
3537         return 0;
3538 }
3539
3540
3541 static int wpa_global_config_parse_str(const struct global_parse_data *data,
3542                                        struct wpa_config *config, int line,
3543                                        const char *pos)
3544 {
3545         size_t len;
3546         char **dst, *tmp;
3547
3548         len = os_strlen(pos);
3549         if (data->param2 && len < (size_t) data->param2) {
3550                 wpa_printf(MSG_ERROR, "Line %d: too short %s (len=%lu "
3551                            "min_len=%ld)", line, data->name,
3552                            (unsigned long) len, (long) data->param2);
3553                 return -1;
3554         }
3555
3556         if (data->param3 && len > (size_t) data->param3) {
3557                 wpa_printf(MSG_ERROR, "Line %d: too long %s (len=%lu "
3558                            "max_len=%ld)", line, data->name,
3559                            (unsigned long) len, (long) data->param3);
3560                 return -1;
3561         }
3562
3563         tmp = os_strdup(pos);
3564         if (tmp == NULL)
3565                 return -1;
3566
3567         dst = (char **) (((u8 *) config) + (long) data->param1);
3568         os_free(*dst);
3569         *dst = tmp;
3570         wpa_printf(MSG_DEBUG, "%s='%s'", data->name, *dst);
3571
3572         return 0;
3573 }
3574
3575
3576 static int wpa_config_process_bgscan(const struct global_parse_data *data,
3577                                      struct wpa_config *config, int line,
3578                                      const char *pos)
3579 {
3580         size_t len;
3581         char *tmp;
3582         int res;
3583
3584         tmp = wpa_config_parse_string(pos, &len);
3585         if (tmp == NULL) {
3586                 wpa_printf(MSG_ERROR, "Line %d: failed to parse %s",
3587                            line, data->name);
3588                 return -1;
3589         }
3590
3591         res = wpa_global_config_parse_str(data, config, line, tmp);
3592         os_free(tmp);
3593         return res;
3594 }
3595
3596
3597 static int wpa_global_config_parse_bin(const struct global_parse_data *data,
3598                                        struct wpa_config *config, int line,
3599                                        const char *pos)
3600 {
3601         size_t len;
3602         struct wpabuf **dst, *tmp;
3603
3604         len = os_strlen(pos);
3605         if (len & 0x01)
3606                 return -1;
3607
3608         tmp = wpabuf_alloc(len / 2);
3609         if (tmp == NULL)
3610                 return -1;
3611
3612         if (hexstr2bin(pos, wpabuf_put(tmp, len / 2), len / 2)) {
3613                 wpabuf_free(tmp);
3614                 return -1;
3615         }
3616
3617         dst = (struct wpabuf **) (((u8 *) config) + (long) data->param1);
3618         wpabuf_free(*dst);
3619         *dst = tmp;
3620         wpa_printf(MSG_DEBUG, "%s", data->name);
3621
3622         return 0;
3623 }
3624
3625
3626 static int wpa_config_process_freq_list(const struct global_parse_data *data,
3627                                         struct wpa_config *config, int line,
3628                                         const char *value)
3629 {
3630         int *freqs;
3631
3632         freqs = wpa_config_parse_int_array(value);
3633         if (freqs == NULL)
3634                 return -1;
3635         if (freqs[0] == 0) {
3636                 os_free(freqs);
3637                 freqs = NULL;
3638         }
3639         os_free(config->freq_list);
3640         config->freq_list = freqs;
3641         return 0;
3642 }
3643
3644
3645 #ifdef CONFIG_P2P
3646 static int wpa_global_config_parse_ipv4(const struct global_parse_data *data,
3647                                         struct wpa_config *config, int line,
3648                                         const char *pos)
3649 {
3650         u32 *dst;
3651         struct hostapd_ip_addr addr;
3652
3653         if (hostapd_parse_ip_addr(pos, &addr) < 0)
3654                 return -1;
3655         if (addr.af != AF_INET)
3656                 return -1;
3657
3658         dst = (u32 *) (((u8 *) config) + (long) data->param1);
3659         os_memcpy(dst, &addr.u.v4.s_addr, 4);
3660         wpa_printf(MSG_DEBUG, "%s = 0x%x", data->name,
3661                    WPA_GET_BE32((u8 *) dst));
3662
3663         return 0;
3664 }
3665 #endif /* CONFIG_P2P */
3666
3667
3668 static int wpa_config_process_country(const struct global_parse_data *data,
3669                                       struct wpa_config *config, int line,
3670                                       const char *pos)
3671 {
3672         if (!pos[0] || !pos[1]) {
3673                 wpa_printf(MSG_DEBUG, "Invalid country set");
3674                 return -1;
3675         }
3676         config->country[0] = pos[0];
3677         config->country[1] = pos[1];
3678         wpa_printf(MSG_DEBUG, "country='%c%c'",
3679                    config->country[0], config->country[1]);
3680         return 0;
3681 }
3682
3683
3684 static int wpa_config_process_load_dynamic_eap(
3685         const struct global_parse_data *data, struct wpa_config *config,
3686         int line, const char *so)
3687 {
3688         int ret;
3689         wpa_printf(MSG_DEBUG, "load_dynamic_eap=%s", so);
3690         ret = eap_peer_method_load(so);
3691         if (ret == -2) {
3692                 wpa_printf(MSG_DEBUG, "This EAP type was already loaded - not "
3693                            "reloading.");
3694         } else if (ret) {
3695                 wpa_printf(MSG_ERROR, "Line %d: Failed to load dynamic EAP "
3696                            "method '%s'.", line, so);
3697                 return -1;
3698         }
3699
3700         return 0;
3701 }
3702
3703
3704 #ifdef CONFIG_WPS
3705
3706 static int wpa_config_process_uuid(const struct global_parse_data *data,
3707                                    struct wpa_config *config, int line,
3708                                    const char *pos)
3709 {
3710         char buf[40];
3711         if (uuid_str2bin(pos, config->uuid)) {
3712                 wpa_printf(MSG_ERROR, "Line %d: invalid UUID", line);
3713                 return -1;
3714         }
3715         uuid_bin2str(config->uuid, buf, sizeof(buf));
3716         wpa_printf(MSG_DEBUG, "uuid=%s", buf);
3717         return 0;
3718 }
3719
3720
3721 static int wpa_config_process_device_type(
3722         const struct global_parse_data *data,
3723         struct wpa_config *config, int line, const char *pos)
3724 {
3725         return wps_dev_type_str2bin(pos, config->device_type);
3726 }
3727
3728
3729 static int wpa_config_process_os_version(const struct global_parse_data *data,
3730                                          struct wpa_config *config, int line,
3731                                          const char *pos)
3732 {
3733         if (hexstr2bin(pos, config->os_version, 4)) {
3734                 wpa_printf(MSG_ERROR, "Line %d: invalid os_version", line);
3735                 return -1;
3736         }
3737         wpa_printf(MSG_DEBUG, "os_version=%08x",
3738                    WPA_GET_BE32(config->os_version));
3739         return 0;
3740 }
3741
3742
3743 static int wpa_config_process_wps_vendor_ext_m1(
3744         const struct global_parse_data *data,
3745         struct wpa_config *config, int line, const char *pos)
3746 {
3747         struct wpabuf *tmp;
3748         int len = os_strlen(pos) / 2;
3749         u8 *p;
3750
3751         if (!len) {
3752                 wpa_printf(MSG_ERROR, "Line %d: "
3753                            "invalid wps_vendor_ext_m1", line);
3754                 return -1;
3755         }
3756
3757         tmp = wpabuf_alloc(len);
3758         if (tmp) {
3759                 p = wpabuf_put(tmp, len);
3760
3761                 if (hexstr2bin(pos, p, len)) {
3762                         wpa_printf(MSG_ERROR, "Line %d: "
3763                                    "invalid wps_vendor_ext_m1", line);
3764                         wpabuf_free(tmp);
3765                         return -1;
3766                 }
3767
3768                 wpabuf_free(config->wps_vendor_ext_m1);
3769                 config->wps_vendor_ext_m1 = tmp;
3770         } else {
3771                 wpa_printf(MSG_ERROR, "Can not allocate "
3772                            "memory for wps_vendor_ext_m1");
3773                 return -1;
3774         }
3775
3776         return 0;
3777 }
3778
3779 #endif /* CONFIG_WPS */
3780
3781 #ifdef CONFIG_P2P
3782 static int wpa_config_process_sec_device_type(
3783         const struct global_parse_data *data,
3784         struct wpa_config *config, int line, const char *pos)
3785 {
3786         int idx;
3787
3788         if (config->num_sec_device_types >= MAX_SEC_DEVICE_TYPES) {
3789                 wpa_printf(MSG_ERROR, "Line %d: too many sec_device_type "
3790                            "items", line);
3791                 return -1;
3792         }
3793
3794         idx = config->num_sec_device_types;
3795
3796         if (wps_dev_type_str2bin(pos, config->sec_device_type[idx]))
3797                 return -1;
3798
3799         config->num_sec_device_types++;
3800         return 0;
3801 }
3802
3803
3804 static int wpa_config_process_p2p_pref_chan(
3805         const struct global_parse_data *data,
3806         struct wpa_config *config, int line, const char *pos)
3807 {
3808         struct p2p_channel *pref = NULL, *n;
3809         unsigned int num = 0;
3810         const char *pos2;
3811         u8 op_class, chan;
3812
3813         /* format: class:chan,class:chan,... */
3814
3815         while (*pos) {
3816                 op_class = atoi(pos);
3817                 pos2 = os_strchr(pos, ':');
3818                 if (pos2 == NULL)
3819                         goto fail;
3820                 pos2++;
3821                 chan = atoi(pos2);
3822
3823                 n = os_realloc_array(pref, num + 1,
3824                                      sizeof(struct p2p_channel));
3825                 if (n == NULL)
3826                         goto fail;
3827                 pref = n;
3828                 pref[num].op_class = op_class;
3829                 pref[num].chan = chan;
3830                 num++;
3831
3832                 pos = os_strchr(pos2, ',');
3833                 if (pos == NULL)
3834                         break;
3835                 pos++;
3836         }
3837
3838         os_free(config->p2p_pref_chan);
3839         config->p2p_pref_chan = pref;
3840         config->num_p2p_pref_chan = num;
3841         wpa_hexdump(MSG_DEBUG, "P2P: Preferred class/channel pairs",
3842                     (u8 *) config->p2p_pref_chan,
3843                     config->num_p2p_pref_chan * sizeof(struct p2p_channel));
3844
3845         return 0;
3846
3847 fail:
3848         os_free(pref);
3849         wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_pref_chan list", line);
3850         return -1;
3851 }
3852
3853
3854 static int wpa_config_process_p2p_no_go_freq(
3855         const struct global_parse_data *data,
3856         struct wpa_config *config, int line, const char *pos)
3857 {
3858         int ret;
3859
3860         ret = freq_range_list_parse(&config->p2p_no_go_freq, pos);
3861         if (ret < 0) {
3862                 wpa_printf(MSG_ERROR, "Line %d: Invalid p2p_no_go_freq", line);
3863                 return -1;
3864         }
3865
3866         wpa_printf(MSG_DEBUG, "P2P: p2p_no_go_freq with %u items",
3867                    config->p2p_no_go_freq.num);
3868
3869         return 0;
3870 }
3871
3872 #endif /* CONFIG_P2P */
3873
3874
3875 static int wpa_config_process_hessid(
3876         const struct global_parse_data *data,
3877         struct wpa_config *config, int line, const char *pos)
3878 {
3879         if (hwaddr_aton2(pos, config->hessid) < 0) {
3880                 wpa_printf(MSG_ERROR, "Line %d: Invalid hessid '%s'",
3881                            line, pos);
3882                 return -1;
3883         }
3884
3885         return 0;
3886 }
3887
3888
3889 static int wpa_config_process_sae_groups(
3890         const struct global_parse_data *data,
3891         struct wpa_config *config, int line, const char *pos)
3892 {
3893         int *groups = wpa_config_parse_int_array(pos);
3894         if (groups == NULL) {
3895                 wpa_printf(MSG_ERROR, "Line %d: Invalid sae_groups '%s'",
3896                            line, pos);
3897                 return -1;
3898         }
3899
3900         os_free(config->sae_groups);
3901         config->sae_groups = groups;
3902
3903         return 0;
3904 }
3905
3906
3907 static int wpa_config_process_ap_vendor_elements(
3908         const struct global_parse_data *data,
3909         struct wpa_config *config, int line, const char *pos)
3910 {
3911         struct wpabuf *tmp;
3912         int len = os_strlen(pos) / 2;
3913         u8 *p;
3914
3915         if (!len) {
3916                 wpa_printf(MSG_ERROR, "Line %d: invalid ap_vendor_elements",
3917                            line);
3918                 return -1;
3919         }
3920
3921         tmp = wpabuf_alloc(len);
3922         if (tmp) {
3923                 p = wpabuf_put(tmp, len);
3924
3925                 if (hexstr2bin(pos, p, len)) {
3926                         wpa_printf(MSG_ERROR, "Line %d: invalid "
3927                                    "ap_vendor_elements", line);
3928                         wpabuf_free(tmp);
3929                         return -1;
3930                 }
3931
3932                 wpabuf_free(config->ap_vendor_elements);
3933                 config->ap_vendor_elements = tmp;
3934         } else {
3935                 wpa_printf(MSG_ERROR, "Cannot allocate memory for "
3936                            "ap_vendor_elements");
3937                 return -1;
3938         }
3939
3940         return 0;
3941 }
3942
3943
3944 #ifdef CONFIG_CTRL_IFACE
3945 static int wpa_config_process_no_ctrl_interface(
3946         const struct global_parse_data *data,
3947         struct wpa_config *config, int line, const char *pos)
3948 {
3949         wpa_printf(MSG_DEBUG, "no_ctrl_interface -> ctrl_interface=NULL");
3950         os_free(config->ctrl_interface);
3951         config->ctrl_interface = NULL;
3952         return 0;
3953 }
3954 #endif /* CONFIG_CTRL_IFACE */
3955
3956
3957 #ifdef OFFSET
3958 #undef OFFSET
3959 #endif /* OFFSET */
3960 /* OFFSET: Get offset of a variable within the wpa_config structure */
3961 #define OFFSET(v) ((void *) &((struct wpa_config *) 0)->v)
3962
3963 #define FUNC(f) #f, wpa_config_process_ ## f, OFFSET(f), NULL, NULL
3964 #define FUNC_NO_VAR(f) #f, wpa_config_process_ ## f, NULL, NULL, NULL
3965 #define _INT(f) #f, wpa_global_config_parse_int, OFFSET(f)
3966 #define INT(f) _INT(f), NULL, NULL
3967 #define INT_RANGE(f, min, max) _INT(f), (void *) min, (void *) max
3968 #define _STR(f) #f, wpa_global_config_parse_str, OFFSET(f)
3969 #define STR(f) _STR(f), NULL, NULL
3970 #define STR_RANGE(f, min, max) _STR(f), (void *) min, (void *) max
3971 #define BIN(f) #f, wpa_global_config_parse_bin, OFFSET(f), NULL, NULL
3972 #define IPV4(f) #f, wpa_global_config_parse_ipv4, OFFSET(f), NULL, NULL
3973
3974 static const struct global_parse_data global_fields[] = {
3975 #ifdef CONFIG_CTRL_IFACE
3976         { STR(ctrl_interface), 0 },
3977         { FUNC_NO_VAR(no_ctrl_interface), 0 },
3978         { STR(ctrl_interface_group), 0 } /* deprecated */,
3979 #endif /* CONFIG_CTRL_IFACE */
3980 #ifdef CONFIG_MACSEC
3981         { INT_RANGE(eapol_version, 1, 3), 0 },
3982 #else /* CONFIG_MACSEC */
3983         { INT_RANGE(eapol_version, 1, 2), 0 },
3984 #endif /* CONFIG_MACSEC */
3985         { INT(ap_scan), 0 },
3986         { FUNC(bgscan), 0 },
3987 #ifdef CONFIG_MESH
3988         { INT(user_mpm), 0 },
3989 #endif /* CONFIG_MESH */
3990         { INT(disable_scan_offload), 0 },
3991         { INT(fast_reauth), 0 },
3992         { STR(opensc_engine_path), 0 },
3993         { STR(pkcs11_engine_path), 0 },
3994         { STR(pkcs11_module_path), 0 },
3995         { STR(openssl_ciphers), 0 },
3996         { STR(pcsc_reader), 0 },
3997         { STR(pcsc_pin), 0 },
3998         { INT(external_sim), 0 },
3999         { STR(driver_param), 0 },
4000         { INT(dot11RSNAConfigPMKLifetime), 0 },
4001         { INT(dot11RSNAConfigPMKReauthThreshold), 0 },
4002         { INT(dot11RSNAConfigSATimeout), 0 },
4003 #ifndef CONFIG_NO_CONFIG_WRITE
4004         { INT(update_config), 0 },
4005 #endif /* CONFIG_NO_CONFIG_WRITE */
4006         { FUNC_NO_VAR(load_dynamic_eap), 0 },
4007 #ifdef CONFIG_WPS
4008         { FUNC(uuid), CFG_CHANGED_UUID },
4009         { STR_RANGE(device_name, 0, 32), CFG_CHANGED_DEVICE_NAME },
4010         { STR_RANGE(manufacturer, 0, 64), CFG_CHANGED_WPS_STRING },
4011         { STR_RANGE(model_name, 0, 32), CFG_CHANGED_WPS_STRING },
4012         { STR_RANGE(model_number, 0, 32), CFG_CHANGED_WPS_STRING },
4013         { STR_RANGE(serial_number, 0, 32), CFG_CHANGED_WPS_STRING },
4014         { FUNC(device_type), CFG_CHANGED_DEVICE_TYPE },
4015         { FUNC(os_version), CFG_CHANGED_OS_VERSION },
4016         { STR(config_methods), CFG_CHANGED_CONFIG_METHODS },
4017         { INT_RANGE(wps_cred_processing, 0, 2), 0 },
4018         { FUNC(wps_vendor_ext_m1), CFG_CHANGED_VENDOR_EXTENSION },
4019 #endif /* CONFIG_WPS */
4020 #ifdef CONFIG_P2P
4021         { FUNC(sec_device_type), CFG_CHANGED_SEC_DEVICE_TYPE },
4022         { INT(p2p_listen_reg_class), 0 },
4023         { INT(p2p_listen_channel), 0 },
4024         { INT(p2p_oper_reg_class), CFG_CHANGED_P2P_OPER_CHANNEL },
4025         { INT(p2p_oper_channel), CFG_CHANGED_P2P_OPER_CHANNEL },
4026         { INT_RANGE(p2p_go_intent, 0, 15), 0 },
4027         { STR(p2p_ssid_postfix), CFG_CHANGED_P2P_SSID_POSTFIX },
4028         { INT_RANGE(persistent_reconnect, 0, 1), 0 },
4029         { INT_RANGE(p2p_intra_bss, 0, 1), CFG_CHANGED_P2P_INTRA_BSS },
4030         { INT(p2p_group_idle), 0 },
4031         { INT_RANGE(p2p_passphrase_len, 8, 63),
4032           CFG_CHANGED_P2P_PASSPHRASE_LEN },
4033         { FUNC(p2p_pref_chan), CFG_CHANGED_P2P_PREF_CHAN },
4034         { FUNC(p2p_no_go_freq), CFG_CHANGED_P2P_PREF_CHAN },
4035         { INT_RANGE(p2p_add_cli_chan, 0, 1), 0 },
4036         { INT_RANGE(p2p_optimize_listen_chan, 0, 1), 0 },
4037         { INT(p2p_go_ht40), 0 },
4038         { INT(p2p_go_vht), 0 },
4039         { INT(p2p_disabled), 0 },
4040         { INT(p2p_no_group_iface), 0 },
4041         { INT_RANGE(p2p_ignore_shared_freq, 0, 1), 0 },
4042         { IPV4(ip_addr_go), 0 },
4043         { IPV4(ip_addr_mask), 0 },
4044         { IPV4(ip_addr_start), 0 },
4045         { IPV4(ip_addr_end), 0 },
4046 #endif /* CONFIG_P2P */
4047         { FUNC(country), CFG_CHANGED_COUNTRY },
4048         { INT(bss_max_count), 0 },
4049         { INT(bss_expiration_age), 0 },
4050         { INT(bss_expiration_scan_count), 0 },
4051         { INT_RANGE(filter_ssids, 0, 1), 0 },
4052         { INT_RANGE(filter_rssi, -100, 0), 0 },
4053         { INT(max_num_sta), 0 },
4054         { INT_RANGE(disassoc_low_ack, 0, 1), 0 },
4055 #ifdef CONFIG_HS20
4056         { INT_RANGE(hs20, 0, 1), 0 },
4057 #endif /* CONFIG_HS20 */
4058         { INT_RANGE(interworking, 0, 1), 0 },
4059         { FUNC(hessid), 0 },
4060         { INT_RANGE(access_network_type, 0, 15), 0 },
4061         { INT_RANGE(pbc_in_m1, 0, 1), 0 },
4062         { STR(autoscan), 0 },
4063         { INT_RANGE(wps_nfc_dev_pw_id, 0x10, 0xffff),
4064           CFG_CHANGED_NFC_PASSWORD_TOKEN },
4065         { BIN(wps_nfc_dh_pubkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4066         { BIN(wps_nfc_dh_privkey), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4067         { BIN(wps_nfc_dev_pw), CFG_CHANGED_NFC_PASSWORD_TOKEN },
4068         { STR(ext_password_backend), CFG_CHANGED_EXT_PW_BACKEND },
4069         { INT(p2p_go_max_inactivity), 0 },
4070         { INT_RANGE(auto_interworking, 0, 1), 0 },
4071         { INT(okc), 0 },
4072         { INT(pmf), 0 },
4073         { FUNC(sae_groups), 0 },
4074         { INT(dtim_period), 0 },
4075         { INT(beacon_int), 0 },
4076         { FUNC(ap_vendor_elements), 0 },
4077         { INT_RANGE(ignore_old_scan_res, 0, 1), 0 },
4078         { FUNC(freq_list), 0 },
4079         { INT(scan_cur_freq), 0 },
4080         { INT(sched_scan_interval), 0 },
4081         { INT(tdls_external_control), 0},
4082         { STR(osu_dir), 0 },
4083         { STR(wowlan_triggers), 0 },
4084         { INT(p2p_search_delay), 0},
4085         { INT(mac_addr), 0 },
4086         { INT(rand_addr_lifetime), 0 },
4087         { INT(preassoc_mac_addr), 0 },
4088         { INT(key_mgmt_offload), 0},
4089 };
4090
4091 #undef FUNC
4092 #undef _INT
4093 #undef INT
4094 #undef INT_RANGE
4095 #undef _STR
4096 #undef STR
4097 #undef STR_RANGE
4098 #undef BIN
4099 #undef IPV4
4100 #define NUM_GLOBAL_FIELDS ARRAY_SIZE(global_fields)
4101
4102
4103 int wpa_config_process_global(struct wpa_config *config, char *pos, int line)
4104 {
4105         size_t i;
4106         int ret = 0;
4107
4108         for (i = 0; i < NUM_GLOBAL_FIELDS; i++) {
4109                 const struct global_parse_data *field = &global_fields[i];
4110                 size_t flen = os_strlen(field->name);
4111                 if (os_strncmp(pos, field->name, flen) != 0 ||
4112                     pos[flen] != '=')
4113                         continue;
4114
4115                 if (field->parser(field, config, line, pos + flen + 1)) {
4116                         wpa_printf(MSG_ERROR, "Line %d: failed to "
4117                                    "parse '%s'.", line, pos);
4118                         ret = -1;
4119                 }
4120                 if (field->changed_flag == CFG_CHANGED_NFC_PASSWORD_TOKEN)
4121                         config->wps_nfc_pw_from_config = 1;
4122                 config->changed_parameters |= field->changed_flag;
4123                 break;
4124         }
4125         if (i == NUM_GLOBAL_FIELDS) {
4126 #ifdef CONFIG_AP
4127                 if (os_strncmp(pos, "wmm_ac_", 7) == 0) {
4128                         char *tmp = os_strchr(pos, '=');
4129                         if (tmp == NULL) {
4130                                 if (line < 0)
4131                                         return -1;
4132                                 wpa_printf(MSG_ERROR, "Line %d: invalid line "
4133                                            "'%s'", line, pos);
4134                                 return -1;
4135                         }
4136                         *tmp++ = '\0';
4137                         if (hostapd_config_wmm_ac(config->wmm_ac_params, pos,
4138                                                   tmp)) {
4139                                 wpa_printf(MSG_ERROR, "Line %d: invalid WMM "
4140                                            "AC item", line);
4141                                 return -1;
4142                         }
4143                 }
4144 #endif /* CONFIG_AP */
4145                 if (line < 0)
4146                         return -1;
4147                 wpa_printf(MSG_ERROR, "Line %d: unknown global field '%s'.",
4148                            line, pos);
4149                 ret = -1;
4150         }
4151
4152         return ret;
4153 }