wpa_supplicant/config_file.c

   1 /*
   2  * WPA Supplicant / Configuration backend: text file
   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  * This file implements a configuration backend for text files. All the
   9  * configuration information is stored in a text file that uses a format
  10  * described in the sample configuration file, wpa_supplicant.conf.
  11  */
  12
  13 #include "includes.h"
  14 #ifdef ANDROID
  15 #include <sys/stat.h>
  16 #endif /* ANDROID */
  17
  18 #include "common.h"
  19 #include "config.h"
  20 #include "base64.h"
  21 #include "uuid.h"
  22 #include "p2p/p2p.h"
  23 #include "eap_peer/eap_methods.h"
  24 #include "eap_peer/eap.h"
  25
  26
  27 static int newline_terminated(const char *buf, size_t buflen)
  28 {
  29         size_t len = os_strlen(buf);
  30         if (len == 0)
  31                 return 0;
  32         if (len == buflen - 1 && buf[buflen - 1] != '\r' &&
  33             buf[len - 1] != '\n')
  34                 return 0;
  35         return 1;
  36 }
  37
  38
  39 static void skip_line_end(FILE *stream)
  40 {
  41         char buf[100];
  42         while (fgets(buf, sizeof(buf), stream)) {
  43                 buf[sizeof(buf) - 1] = '\0';
  44                 if (newline_terminated(buf, sizeof(buf)))
  45                         return;
  46         }
  47 }
  48
  49
  50 /**
  51  * wpa_config_get_line - Read the next configuration file line
  52  * @s: Buffer for the line
  53  * @size: The buffer length
  54  * @stream: File stream to read from
  55  * @line: Pointer to a variable storing the file line number
  56  * @_pos: Buffer for the pointer to the beginning of data on the text line or
  57  * %NULL if not needed (returned value used instead)
  58  * Returns: Pointer to the beginning of data on the text line or %NULL if no
  59  * more text lines are available.
  60  *
  61  * This function reads the next non-empty line from the configuration file and
  62  * removes comments. The returned string is guaranteed to be null-terminated.
  63  */
  64 static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
  65                                   char **_pos)
  66 {
  67         char *pos, *end, *sstart;
  68
  69         while (fgets(s, size, stream)) {
  70                 (*line)++;
  71                 s[size - 1] = '\0';
  72                 if (!newline_terminated(s, size)) {
  73                         /*
  74                          * The line was truncated - skip rest of it to avoid
  75                          * confusing error messages.
  76                          */
  77                         wpa_printf(MSG_INFO, "Long line in configuration file "
  78                                    "truncated");
  79                         skip_line_end(stream);
  80                 }
  81                 pos = s;
  82
  83                 /* Skip white space from the beginning of line. */
  84                 while (*pos == ' ' || *pos == '\t' || *pos == '\r')
  85                         pos++;
  86
  87                 /* Skip comment lines and empty lines */
  88                 if (*pos == '#' || *pos == '\n' || *pos == '\0')
  89                         continue;
  90
  91                 /*
  92                  * Remove # comments unless they are within a double quoted
  93                  * string.
  94                  */
  95                 sstart = os_strchr(pos, '"');
  96                 if (sstart)
  97                         sstart = os_strrchr(sstart + 1, '"');
  98                 if (!sstart)
  99                         sstart = pos;
 100                 end = os_strchr(sstart, '#');
 101                 if (end)
 102                         *end-- = '\0';
 103                 else
 104                         end = pos + os_strlen(pos) - 1;
 105
 106                 /* Remove trailing white space. */
 107                 while (end > pos &&
 108                        (*end == '\n' || *end == ' ' || *end == '\t' ||
 109                         *end == '\r'))
 110                         *end-- = '\0';
 111
 112                 if (*pos == '\0')
 113                         continue;
 114
 115                 if (_pos)
 116                         *_pos = pos;
 117                 return pos;
 118         }
 119
 120         if (_pos)
 121                 *_pos = NULL;
 122         return NULL;
 123 }
 124
 125
 126 static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
 127 {
 128         int errors = 0;
 129
 130         if (ssid->passphrase) {
 131                 if (ssid->psk_set) {
 132                         wpa_printf(MSG_ERROR, "Line %d: both PSK and "
 133                                    "passphrase configured.", line);
 134                         errors++;
 135                 }
 136                 wpa_config_update_psk(ssid);
 137         }
 138
 139         if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
 140             !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
 141             !(ssid->pairwise_cipher & WPA_CIPHER_NONE)) {
 142                 /* Group cipher cannot be stronger than the pairwise cipher. */
 143                 wpa_printf(MSG_DEBUG, "Line %d: removed CCMP from group cipher"
 144                            " list since it was not allowed for pairwise "
 145                            "cipher", line);
 146                 ssid->group_cipher &= ~WPA_CIPHER_CCMP;
 147         }
 148
 149         if (ssid->mode == WPAS_MODE_MESH &&
 150             (ssid->key_mgmt != WPA_KEY_MGMT_NONE &&
 151             ssid->key_mgmt != WPA_KEY_MGMT_SAE)) {
 152                 wpa_printf(MSG_ERROR,
 153                            "Line %d: key_mgmt for mesh network should be open or SAE",
 154                            line);
 155                 errors++;
 156         }
 157
 158         return errors;
 159 }
 160
 161
 162 static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
 163 {
 164         struct wpa_ssid *ssid;
 165         int errors = 0, end = 0;
 166         char buf[2000], *pos, *pos2;
 167
 168         wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
 169                    *line);
 170         ssid = os_zalloc(sizeof(*ssid));
 171         if (ssid == NULL)
 172                 return NULL;
 173         dl_list_init(&ssid->psk_list);
 174         ssid->id = id;
 175
 176         wpa_config_set_network_defaults(ssid);
 177
 178         while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
 179                 if (os_strcmp(pos, "}") == 0) {
 180                         end = 1;
 181                         break;
 182                 }
 183
 184                 pos2 = os_strchr(pos, '=');
 185                 if (pos2 == NULL) {
 186                         wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
 187                                    "'%s'.", *line, pos);
 188                         errors++;
 189                         continue;
 190                 }
 191
 192                 *pos2++ = '\0';
 193                 if (*pos2 == '"') {
 194                         if (os_strchr(pos2 + 1, '"') == NULL) {
 195                                 wpa_printf(MSG_ERROR, "Line %d: invalid "
 196                                            "quotation '%s'.", *line, pos2);
 197                                 errors++;
 198                                 continue;
 199                         }
 200                 }
 201
 202                 if (wpa_config_set(ssid, pos, pos2, *line) < 0)
 203                         errors++;
 204         }
 205
 206         if (!end) {
 207                 wpa_printf(MSG_ERROR, "Line %d: network block was not "
 208                            "terminated properly.", *line);
 209                 errors++;
 210         }
 211
 212         errors += wpa_config_validate_network(ssid, *line);
 213
 214         if (errors) {
 215                 wpa_config_free_ssid(ssid);
 216                 ssid = NULL;
 217         }
 218
 219         return ssid;
 220 }
 221
 222
 223 static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id)
 224 {
 225         struct wpa_cred *cred;
 226         int errors = 0, end = 0;
 227         char buf[256], *pos, *pos2;
 228
 229         wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line);
 230         cred = os_zalloc(sizeof(*cred));
 231         if (cred == NULL)
 232                 return NULL;
 233         cred->id = id;
 234         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
 235
 236         while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
 237                 if (os_strcmp(pos, "}") == 0) {
 238                         end = 1;
 239                         break;
 240                 }
 241
 242                 pos2 = os_strchr(pos, '=');
 243                 if (pos2 == NULL) {
 244                         wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
 245                                    "'%s'.", *line, pos);
 246                         errors++;
 247                         continue;
 248                 }
 249
 250                 *pos2++ = '\0';
 251                 if (*pos2 == '"') {
 252                         if (os_strchr(pos2 + 1, '"') == NULL) {
 253                                 wpa_printf(MSG_ERROR, "Line %d: invalid "
 254                                            "quotation '%s'.", *line, pos2);
 255                                 errors++;
 256                                 continue;
 257                         }
 258                 }
 259
 260                 if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
 261                         errors++;
 262         }
 263
 264         if (!end) {
 265                 wpa_printf(MSG_ERROR, "Line %d: cred block was not "
 266                            "terminated properly.", *line);
 267                 errors++;
 268         }
 269
 270         if (errors) {
 271                 wpa_config_free_cred(cred);
 272                 cred = NULL;
 273         }
 274
 275         return cred;
 276 }
 277
 278
 279 #ifndef CONFIG_NO_CONFIG_BLOBS
 280 static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
 281                                                      const char *name)
 282 {
 283         struct wpa_config_blob *blob;
 284         char buf[256], *pos;
 285         unsigned char *encoded = NULL, *nencoded;
 286         int end = 0;
 287         size_t encoded_len = 0, len;
 288
 289         wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
 290                    *line, name);
 291
 292         while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
 293                 if (os_strcmp(pos, "}") == 0) {
 294                         end = 1;
 295                         break;
 296                 }
 297
 298                 len = os_strlen(pos);
 299                 nencoded = os_realloc(encoded, encoded_len + len);
 300                 if (nencoded == NULL) {
 301                         wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
 302                                    "blob", *line);
 303                         os_free(encoded);
 304                         return NULL;
 305                 }
 306                 encoded = nencoded;
 307                 os_memcpy(encoded + encoded_len, pos, len);
 308                 encoded_len += len;
 309         }
 310
 311         if (!end) {
 312                 wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
 313                            "properly", *line);
 314                 os_free(encoded);
 315                 return NULL;
 316         }
 317
 318         blob = os_zalloc(sizeof(*blob));
 319         if (blob == NULL) {
 320                 os_free(encoded);
 321                 return NULL;
 322         }
 323         blob->name = os_strdup(name);
 324         blob->data = base64_decode(encoded, encoded_len, &blob->len);
 325         os_free(encoded);
 326
 327         if (blob->name == NULL || blob->data == NULL) {
 328                 wpa_config_free_blob(blob);
 329                 return NULL;
 330         }
 331
 332         return blob;
 333 }
 334
 335
 336 static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
 337                                    int *line, char *bname)
 338 {
 339         char *name_end;
 340         struct wpa_config_blob *blob;
 341
 342         name_end = os_strchr(bname, '=');
 343         if (name_end == NULL) {
 344                 wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
 345                            *line);
 346                 return -1;
 347         }
 348         *name_end = '\0';
 349
 350         blob = wpa_config_read_blob(f, line, bname);
 351         if (blob == NULL) {
 352                 wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
 353                            *line, bname);
 354                 return -1;
 355         }
 356         wpa_config_set_blob(config, blob);
 357         return 0;
 358 }
 359 #endif /* CONFIG_NO_CONFIG_BLOBS */
 360
 361
 362 struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
 363 {
 364         FILE *f;
 365         char buf[512], *pos;
 366         int errors = 0, line = 0;
 367         struct wpa_ssid *ssid, *tail, *head;
 368         struct wpa_cred *cred, *cred_tail, *cred_head;
 369         struct wpa_config *config;
 370         int id = 0;
 371         int cred_id = 0;
 372
 373         if (name == NULL)
 374                 return NULL;
 375         if (cfgp)
 376                 config = cfgp;
 377         else
 378                 config = wpa_config_alloc_empty(NULL, NULL);
 379         if (config == NULL) {
 380                 wpa_printf(MSG_ERROR, "Failed to allocate config file "
 381                            "structure");
 382                 return NULL;
 383         }
 384         tail = head = config->ssid;
 385         while (tail && tail->next)
 386                 tail = tail->next;
 387         cred_tail = cred_head = config->cred;
 388         while (cred_tail && cred_tail->next)
 389                 cred_tail = cred_tail->next;
 390
 391         wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
 392         f = fopen(name, "r");
 393         if (f == NULL) {
 394                 wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
 395                            "error: %s", name, strerror(errno));
 396                 os_free(config);
 397                 return NULL;
 398         }
 399
 400         while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
 401                 if (os_strcmp(pos, "network={") == 0) {
 402                         ssid = wpa_config_read_network(f, &line, id++);
 403                         if (ssid == NULL) {
 404                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
 405                                            "parse network block.", line);
 406                                 errors++;
 407                                 continue;
 408                         }
 409                         if (head == NULL) {
 410                                 head = tail = ssid;
 411                         } else {
 412                                 tail->next = ssid;
 413                                 tail = ssid;
 414                         }
 415                         if (wpa_config_add_prio_network(config, ssid)) {
 416                                 wpa_printf(MSG_ERROR, "Line %d: failed to add "
 417                                            "network block to priority list.",
 418                                            line);
 419                                 errors++;
 420                                 continue;
 421                         }
 422                 } else if (os_strcmp(pos, "cred={") == 0) {
 423                         cred = wpa_config_read_cred(f, &line, cred_id++);
 424                         if (cred == NULL) {
 425                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
 426                                            "parse cred block.", line);
 427                                 errors++;
 428                                 continue;
 429                         }
 430                         if (cred_head == NULL) {
 431                                 cred_head = cred_tail = cred;
 432                         } else {
 433                                 cred_tail->next = cred;
 434                                 cred_tail = cred;
 435                         }
 436 #ifndef CONFIG_NO_CONFIG_BLOBS
 437                 } else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
 438                         if (wpa_config_process_blob(config, f, &line, pos + 12)
 439                             < 0) {
 440                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
 441                                            "process blob.", line);
 442                                 errors++;
 443                                 continue;
 444                         }
 445 #endif /* CONFIG_NO_CONFIG_BLOBS */
 446                 } else if (wpa_config_process_global(config, pos, line) < 0) {
 447                         wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
 448                                    "line '%s'.", line, pos);
 449                         errors++;
 450                         continue;
 451                 }
 452         }
 453
 454         fclose(f);
 455
 456         config->ssid = head;
 457         wpa_config_debug_dump_networks(config);
 458         config->cred = cred_head;
 459
 460 #ifndef WPA_IGNORE_CONFIG_ERRORS
 461         if (errors) {
 462                 wpa_config_free(config);
 463                 config = NULL;
 464                 head = NULL;
 465         }
 466 #endif /* WPA_IGNORE_CONFIG_ERRORS */
 467
 468         return config;
 469 }
 470
 471
 472 #ifndef CONFIG_NO_CONFIG_WRITE
 473
 474 static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
 475 {
 476         char *value = wpa_config_get(ssid, field);
 477         if (value == NULL)
 478                 return;
 479         fprintf(f, "\t%s=%s\n", field, value);
 480         os_free(value);
 481 }
 482
 483
 484 static void write_int(FILE *f, const char *field, int value, int def)
 485 {
 486         if (value == def)
 487                 return;
 488         fprintf(f, "\t%s=%d\n", field, value);
 489 }
 490
 491
 492 static void write_bssid(FILE *f, struct wpa_ssid *ssid)
 493 {
 494         char *value = wpa_config_get(ssid, "bssid");
 495         if (value == NULL)
 496                 return;
 497         fprintf(f, "\tbssid=%s\n", value);
 498         os_free(value);
 499 }
 500
 501
 502 static void write_psk(FILE *f, struct wpa_ssid *ssid)
 503 {
 504         char *value = wpa_config_get(ssid, "psk");
 505         if (value == NULL)
 506                 return;
 507         fprintf(f, "\tpsk=%s\n", value);
 508         os_free(value);
 509 }
 510
 511
 512 static void write_proto(FILE *f, struct wpa_ssid *ssid)
 513 {
 514         char *value;
 515
 516         if (ssid->proto == DEFAULT_PROTO)
 517                 return;
 518
 519         value = wpa_config_get(ssid, "proto");
 520         if (value == NULL)
 521                 return;
 522         if (value[0])
 523                 fprintf(f, "\tproto=%s\n", value);
 524         os_free(value);
 525 }
 526
 527
 528 static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
 529 {
 530         char *value;
 531
 532         if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
 533                 return;
 534
 535         value = wpa_config_get(ssid, "key_mgmt");
 536         if (value == NULL)
 537                 return;
 538         if (value[0])
 539                 fprintf(f, "\tkey_mgmt=%s\n", value);
 540         os_free(value);
 541 }
 542
 543
 544 static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
 545 {
 546         char *value;
 547
 548         if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
 549                 return;
 550
 551         value = wpa_config_get(ssid, "pairwise");
 552         if (value == NULL)
 553                 return;
 554         if (value[0])
 555                 fprintf(f, "\tpairwise=%s\n", value);
 556         os_free(value);
 557 }
 558
 559
 560 static void write_group(FILE *f, struct wpa_ssid *ssid)
 561 {
 562         char *value;
 563
 564         if (ssid->group_cipher == DEFAULT_GROUP)
 565                 return;
 566
 567         value = wpa_config_get(ssid, "group");
 568         if (value == NULL)
 569                 return;
 570         if (value[0])
 571                 fprintf(f, "\tgroup=%s\n", value);
 572         os_free(value);
 573 }
 574
 575
 576 static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
 577 {
 578         char *value;
 579
 580         if (ssid->auth_alg == 0)
 581                 return;
 582
 583         value = wpa_config_get(ssid, "auth_alg");
 584         if (value == NULL)
 585                 return;
 586         if (value[0])
 587                 fprintf(f, "\tauth_alg=%s\n", value);
 588         os_free(value);
 589 }
 590
 591
 592 #ifdef IEEE8021X_EAPOL
 593 static void write_eap(FILE *f, struct wpa_ssid *ssid)
 594 {
 595         char *value;
 596
 597         value = wpa_config_get(ssid, "eap");
 598         if (value == NULL)
 599                 return;
 600
 601         if (value[0])
 602                 fprintf(f, "\teap=%s\n", value);
 603         os_free(value);
 604 }
 605 #endif /* IEEE8021X_EAPOL */
 606
 607
 608 static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
 609 {
 610         char field[20], *value;
 611         int res;
 612
 613         res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
 614         if (os_snprintf_error(sizeof(field), res))
 615                 return;
 616         value = wpa_config_get(ssid, field);
 617         if (value) {
 618                 fprintf(f, "\t%s=%s\n", field, value);
 619                 os_free(value);
 620         }
 621 }
 622
 623
 624 #ifdef CONFIG_P2P
 625
 626 static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
 627 {
 628         char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
 629         if (value == NULL)
 630                 return;
 631         fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
 632         os_free(value);
 633 }
 634
 635 static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
 636 {
 637         char *value = wpa_config_get(ssid, "p2p_client_list");
 638         if (value == NULL)
 639                 return;
 640         fprintf(f, "\tp2p_client_list=%s\n", value);
 641         os_free(value);
 642 }
 643
 644
 645 static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
 646 {
 647         struct psk_list_entry *psk;
 648         char hex[32 * 2 + 1];
 649
 650         dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
 651                 wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
 652                 fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
 653                         psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
 654         }
 655 }
 656
 657 #endif /* CONFIG_P2P */
 658
 659
 660 static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
 661 {
 662         int i;
 663
 664 #define STR(t) write_str(f, #t, ssid)
 665 #define INT(t) write_int(f, #t, ssid->t, 0)
 666 #define INTe(t) write_int(f, #t, ssid->eap.t, 0)
 667 #define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
 668 #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
 669
 670         STR(ssid);
 671         INT(scan_ssid);
 672         write_bssid(f, ssid);
 673         write_str(f, "bssid_blacklist", ssid);
 674         write_str(f, "bssid_whitelist", ssid);
 675         write_psk(f, ssid);
 676         write_proto(f, ssid);
 677         write_key_mgmt(f, ssid);
 678         INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
 679         write_pairwise(f, ssid);
 680         write_group(f, ssid);
 681         write_auth_alg(f, ssid);
 682         STR(bgscan);
 683         STR(autoscan);
 684         STR(scan_freq);
 685 #ifdef IEEE8021X_EAPOL
 686         write_eap(f, ssid);
 687         STR(identity);
 688         STR(anonymous_identity);
 689         STR(password);
 690         STR(ca_cert);
 691         STR(ca_path);
 692         STR(client_cert);
 693         STR(private_key);
 694         STR(private_key_passwd);
 695         STR(dh_file);
 696         STR(subject_match);
 697         STR(altsubject_match);
 698         STR(domain_suffix_match);
 699         STR(domain_match);
 700         STR(ca_cert2);
 701         STR(ca_path2);
 702         STR(client_cert2);
 703         STR(private_key2);
 704         STR(private_key2_passwd);
 705         STR(dh_file2);
 706         STR(subject_match2);
 707         STR(altsubject_match2);
 708         STR(domain_suffix_match2);
 709         STR(domain_match2);
 710         STR(phase1);
 711         STR(phase2);
 712         STR(pcsc);
 713         STR(pin);
 714         STR(engine_id);
 715         STR(key_id);
 716         STR(cert_id);
 717         STR(ca_cert_id);
 718         STR(key2_id);
 719         STR(pin2);
 720         STR(engine2_id);
 721         STR(cert2_id);
 722         STR(ca_cert2_id);
 723         INTe(engine);
 724         INTe(engine2);
 725         INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
 726         STR(openssl_ciphers);
 727         INTe(erp);
 728 #endif /* IEEE8021X_EAPOL */
 729         for (i = 0; i < 4; i++)
 730                 write_wep_key(f, i, ssid);
 731         INT(wep_tx_keyidx);
 732         INT(priority);
 733 #ifdef IEEE8021X_EAPOL
 734         INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
 735         STR(pac_file);
 736         INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
 737         INTe(ocsp);
 738         INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
 739 #endif /* IEEE8021X_EAPOL */
 740         INT(mode);
 741         INT(no_auto_peer);
 742         INT(frequency);
 743         INT(fixed_freq);
 744         write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
 745         INT(disabled);
 746         INT(peerkey);
 747         INT(mixed_cell);
 748 #ifdef CONFIG_IEEE80211W
 749         write_int(f, "ieee80211w", ssid->ieee80211w,
 750                   MGMT_FRAME_PROTECTION_DEFAULT);
 751 #endif /* CONFIG_IEEE80211W */
 752         STR(id_str);
 753 #ifdef CONFIG_P2P
 754         write_go_p2p_dev_addr(f, ssid);
 755         write_p2p_client_list(f, ssid);
 756         write_psk_list(f, ssid);
 757 #endif /* CONFIG_P2P */
 758         INT(ap_max_inactivity);
 759         INT(dtim_period);
 760         INT(beacon_int);
 761 #ifdef CONFIG_MACSEC
 762         INT(macsec_policy);
 763 #endif /* CONFIG_MACSEC */
 764 #ifdef CONFIG_HS20
 765         INT(update_identifier);
 766 #endif /* CONFIG_HS20 */
 767         write_int(f, "mac_addr", ssid->mac_addr, -1);
 768 #ifdef CONFIG_MESH
 769         STR(mesh_basic_rates);
 770         INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
 771         INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
 772         INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
 773         INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
 774 #endif /* CONFIG_MESH */
 775         INT(wpa_ptk_rekey);
 776         INT(ignore_broadcast_ssid);
 777 #ifdef CONFIG_HT_OVERRIDES
 778         INT_DEF(disable_ht, DEFAULT_DISABLE_HT);
 779         INT_DEF(disable_ht40, DEFAULT_DISABLE_HT40);
 780         INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
 781         INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
 782         INT(ht40_intolerant);
 783         INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
 784         INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
 785         INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);
 786         STR(ht_mcs);
 787 #endif /* CONFIG_HT_OVERRIDES */
 788 #ifdef CONFIG_VHT_OVERRIDES
 789         INT(disable_vht);
 790         INT(vht_capa);
 791         INT(vht_capa_mask);
 792         INT_DEF(vht_rx_mcs_nss_1, -1);
 793         INT_DEF(vht_rx_mcs_nss_2, -1);
 794         INT_DEF(vht_rx_mcs_nss_3, -1);
 795         INT_DEF(vht_rx_mcs_nss_4, -1);
 796         INT_DEF(vht_rx_mcs_nss_5, -1);
 797         INT_DEF(vht_rx_mcs_nss_6, -1);
 798         INT_DEF(vht_rx_mcs_nss_7, -1);
 799         INT_DEF(vht_rx_mcs_nss_8, -1);
 800         INT_DEF(vht_tx_mcs_nss_1, -1);
 801         INT_DEF(vht_tx_mcs_nss_2, -1);
 802         INT_DEF(vht_tx_mcs_nss_3, -1);
 803         INT_DEF(vht_tx_mcs_nss_4, -1);
 804         INT_DEF(vht_tx_mcs_nss_5, -1);
 805         INT_DEF(vht_tx_mcs_nss_6, -1);
 806         INT_DEF(vht_tx_mcs_nss_7, -1);
 807         INT_DEF(vht_tx_mcs_nss_8, -1);
 808 #endif /* CONFIG_VHT_OVERRIDES */
 809
 810 #undef STR
 811 #undef INT
 812 #undef INT_DEF
 813 }
 814
 815
 816 static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
 817 {
 818         size_t i;
 819
 820         if (cred->priority)
 821                 fprintf(f, "\tpriority=%d\n", cred->priority);
 822         if (cred->pcsc)
 823                 fprintf(f, "\tpcsc=%d\n", cred->pcsc);
 824         if (cred->realm)
 825                 fprintf(f, "\trealm=\"%s\"\n", cred->realm);
 826         if (cred->username)
 827                 fprintf(f, "\tusername=\"%s\"\n", cred->username);
 828         if (cred->password && cred->ext_password)
 829                 fprintf(f, "\tpassword=ext:%s\n", cred->password);
 830         else if (cred->password)
 831                 fprintf(f, "\tpassword=\"%s\"\n", cred->password);
 832         if (cred->ca_cert)
 833                 fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
 834         if (cred->client_cert)
 835                 fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
 836         if (cred->private_key)
 837                 fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
 838         if (cred->private_key_passwd)
 839                 fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
 840                         cred->private_key_passwd);
 841         if (cred->imsi)
 842                 fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
 843         if (cred->milenage)
 844                 fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
 845         for (i = 0; i < cred->num_domain; i++)
 846                 fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
 847         if (cred->domain_suffix_match)
 848                 fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
 849                         cred->domain_suffix_match);
 850         if (cred->roaming_consortium_len) {
 851                 fprintf(f, "\troaming_consortium=");
 852                 for (i = 0; i < cred->roaming_consortium_len; i++)
 853                         fprintf(f, "%02x", cred->roaming_consortium[i]);
 854                 fprintf(f, "\n");
 855         }
 856         if (cred->eap_method) {
 857                 const char *name;
 858                 name = eap_get_name(cred->eap_method[0].vendor,
 859                                     cred->eap_method[0].method);
 860                 if (name)
 861                         fprintf(f, "\teap=%s\n", name);
 862         }
 863         if (cred->phase1)
 864                 fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
 865         if (cred->phase2)
 866                 fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
 867         if (cred->excluded_ssid) {
 868                 size_t j;
 869                 for (i = 0; i < cred->num_excluded_ssid; i++) {
 870                         struct excluded_ssid *e = &cred->excluded_ssid[i];
 871                         fprintf(f, "\texcluded_ssid=");
 872                         for (j = 0; j < e->ssid_len; j++)
 873                                 fprintf(f, "%02x", e->ssid[j]);
 874                         fprintf(f, "\n");
 875                 }
 876         }
 877         if (cred->roaming_partner) {
 878                 for (i = 0; i < cred->num_roaming_partner; i++) {
 879                         struct roaming_partner *p = &cred->roaming_partner[i];
 880                         fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
 881                                 p->fqdn, p->exact_match, p->priority,
 882                                 p->country);
 883                 }
 884         }
 885         if (cred->update_identifier)
 886                 fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
 887
 888         if (cred->provisioning_sp)
 889                 fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
 890         if (cred->sp_priority)
 891                 fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
 892
 893         if (cred->min_dl_bandwidth_home)
 894                 fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
 895                         cred->min_dl_bandwidth_home);
 896         if (cred->min_ul_bandwidth_home)
 897                 fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
 898                         cred->min_ul_bandwidth_home);
 899         if (cred->min_dl_bandwidth_roaming)
 900                 fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
 901                         cred->min_dl_bandwidth_roaming);
 902         if (cred->min_ul_bandwidth_roaming)
 903                 fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
 904                         cred->min_ul_bandwidth_roaming);
 905
 906         if (cred->max_bss_load)
 907                 fprintf(f, "\tmax_bss_load=%u\n",
 908                         cred->max_bss_load);
 909
 910         if (cred->ocsp)
 911                 fprintf(f, "\tocsp=%d\n", cred->ocsp);
 912
 913         if (cred->num_req_conn_capab) {
 914                 for (i = 0; i < cred->num_req_conn_capab; i++) {
 915                         int *ports;
 916
 917                         fprintf(f, "\treq_conn_capab=%u",
 918                                 cred->req_conn_capab_proto[i]);
 919                         ports = cred->req_conn_capab_port[i];
 920                         if (ports) {
 921                                 int j;
 922                                 for (j = 0; ports[j] != -1; j++) {
 923                                         fprintf(f, "%s%d", j > 0 ? "," : ":",
 924                                                 ports[j]);
 925                                 }
 926                         }
 927                         fprintf(f, "\n");
 928                 }
 929         }
 930
 931         if (cred->required_roaming_consortium_len) {
 932                 fprintf(f, "\trequired_roaming_consortium=");
 933                 for (i = 0; i < cred->required_roaming_consortium_len; i++)
 934                         fprintf(f, "%02x",
 935                                 cred->required_roaming_consortium[i]);
 936                 fprintf(f, "\n");
 937         }
 938
 939         if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
 940                 fprintf(f, "\tsim_num=%d\n", cred->sim_num);
 941 }
 942
 943
 944 #ifndef CONFIG_NO_CONFIG_BLOBS
 945 static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
 946 {
 947         unsigned char *encoded;
 948
 949         encoded = base64_encode(blob->data, blob->len, NULL);
 950         if (encoded == NULL)
 951                 return -1;
 952
 953         fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
 954         os_free(encoded);
 955         return 0;
 956 }
 957 #endif /* CONFIG_NO_CONFIG_BLOBS */
 958
 959
 960 static void write_global_bin(FILE *f, const char *field,
 961                              const struct wpabuf *val)
 962 {
 963         size_t i;
 964         const u8 *pos;
 965
 966         if (val == NULL)
 967                 return;
 968
 969         fprintf(f, "%s=", field);
 970         pos = wpabuf_head(val);
 971         for (i = 0; i < wpabuf_len(val); i++)
 972                 fprintf(f, "%02X", *pos++);
 973         fprintf(f, "\n");
 974 }
 975
 976
 977 static void wpa_config_write_global(FILE *f, struct wpa_config *config)
 978 {
 979 #ifdef CONFIG_CTRL_IFACE
 980         if (config->ctrl_interface)
 981                 fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
 982         if (config->ctrl_interface_group)
 983                 fprintf(f, "ctrl_interface_group=%s\n",
 984                         config->ctrl_interface_group);
 985 #endif /* CONFIG_CTRL_IFACE */
 986         if (config->eapol_version != DEFAULT_EAPOL_VERSION)
 987                 fprintf(f, "eapol_version=%d\n", config->eapol_version);
 988         if (config->ap_scan != DEFAULT_AP_SCAN)
 989                 fprintf(f, "ap_scan=%d\n", config->ap_scan);
 990         if (config->disable_scan_offload)
 991                 fprintf(f, "disable_scan_offload=%d\n",
 992                         config->disable_scan_offload);
 993         if (config->fast_reauth != DEFAULT_FAST_REAUTH)
 994                 fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
 995         if (config->opensc_engine_path)
 996                 fprintf(f, "opensc_engine_path=%s\n",
 997                         config->opensc_engine_path);
 998         if (config->pkcs11_engine_path)
 999                 fprintf(f, "pkcs11_engine_path=%s\n",
1000                         config->pkcs11_engine_path);
1001         if (config->pkcs11_module_path)
1002                 fprintf(f, "pkcs11_module_path=%s\n",
1003                         config->pkcs11_module_path);
1004         if (config->openssl_ciphers)
1005                 fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
1006         if (config->pcsc_reader)
1007                 fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
1008         if (config->pcsc_pin)
1009                 fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
1010         if (config->driver_param)
1011                 fprintf(f, "driver_param=%s\n", config->driver_param);
1012         if (config->dot11RSNAConfigPMKLifetime)
1013                 fprintf(f, "dot11RSNAConfigPMKLifetime=%d\n",
1014                         config->dot11RSNAConfigPMKLifetime);
1015         if (config->dot11RSNAConfigPMKReauthThreshold)
1016                 fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%d\n",
1017                         config->dot11RSNAConfigPMKReauthThreshold);
1018         if (config->dot11RSNAConfigSATimeout)
1019                 fprintf(f, "dot11RSNAConfigSATimeout=%d\n",
1020                         config->dot11RSNAConfigSATimeout);
1021         if (config->update_config)
1022                 fprintf(f, "update_config=%d\n", config->update_config);
1023 #ifdef CONFIG_WPS
1024         if (!is_nil_uuid(config->uuid)) {
1025                 char buf[40];
1026                 uuid_bin2str(config->uuid, buf, sizeof(buf));
1027                 fprintf(f, "uuid=%s\n", buf);
1028         }
1029         if (config->device_name)
1030                 fprintf(f, "device_name=%s\n", config->device_name);
1031         if (config->manufacturer)
1032                 fprintf(f, "manufacturer=%s\n", config->manufacturer);
1033         if (config->model_name)
1034                 fprintf(f, "model_name=%s\n", config->model_name);
1035         if (config->model_number)
1036                 fprintf(f, "model_number=%s\n", config->model_number);
1037         if (config->serial_number)
1038                 fprintf(f, "serial_number=%s\n", config->serial_number);
1039         {
1040                 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1041                 buf = wps_dev_type_bin2str(config->device_type,
1042                                            _buf, sizeof(_buf));
1043                 if (os_strcmp(buf, "0-00000000-0") != 0)
1044                         fprintf(f, "device_type=%s\n", buf);
1045         }
1046         if (WPA_GET_BE32(config->os_version))
1047                 fprintf(f, "os_version=%08x\n",
1048                         WPA_GET_BE32(config->os_version));
1049         if (config->config_methods)
1050                 fprintf(f, "config_methods=%s\n", config->config_methods);
1051         if (config->wps_cred_processing)
1052                 fprintf(f, "wps_cred_processing=%d\n",
1053                         config->wps_cred_processing);
1054         if (config->wps_vendor_ext_m1) {
1055                 int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1056                 const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1057                 if (len > 0) {
1058                         fprintf(f, "wps_vendor_ext_m1=");
1059                         for (i = 0; i < len; i++)
1060                                 fprintf(f, "%02x", *p++);
1061                         fprintf(f, "\n");
1062                 }
1063         }
1064 #endif /* CONFIG_WPS */
1065 #ifdef CONFIG_P2P
1066         if (config->p2p_listen_reg_class)
1067                 fprintf(f, "p2p_listen_reg_class=%u\n",
1068                         config->p2p_listen_reg_class);
1069         if (config->p2p_listen_channel)
1070                 fprintf(f, "p2p_listen_channel=%u\n",
1071                         config->p2p_listen_channel);
1072         if (config->p2p_oper_reg_class)
1073                 fprintf(f, "p2p_oper_reg_class=%u\n",
1074                         config->p2p_oper_reg_class);
1075         if (config->p2p_oper_channel)
1076                 fprintf(f, "p2p_oper_channel=%u\n", config->p2p_oper_channel);
1077         if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1078                 fprintf(f, "p2p_go_intent=%u\n", config->p2p_go_intent);
1079         if (config->p2p_ssid_postfix)
1080                 fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1081         if (config->persistent_reconnect)
1082                 fprintf(f, "persistent_reconnect=%u\n",
1083                         config->persistent_reconnect);
1084         if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1085                 fprintf(f, "p2p_intra_bss=%u\n", config->p2p_intra_bss);
1086         if (config->p2p_group_idle)
1087                 fprintf(f, "p2p_group_idle=%u\n", config->p2p_group_idle);
1088         if (config->p2p_passphrase_len)
1089                 fprintf(f, "p2p_passphrase_len=%u\n",
1090                         config->p2p_passphrase_len);
1091         if (config->p2p_pref_chan) {
1092                 unsigned int i;
1093                 fprintf(f, "p2p_pref_chan=");
1094                 for (i = 0; i < config->num_p2p_pref_chan; i++) {
1095                         fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1096                                 config->p2p_pref_chan[i].op_class,
1097                                 config->p2p_pref_chan[i].chan);
1098                 }
1099                 fprintf(f, "\n");
1100         }
1101         if (config->p2p_no_go_freq.num) {
1102                 char *val = freq_range_list_str(&config->p2p_no_go_freq);
1103                 if (val) {
1104                         fprintf(f, "p2p_no_go_freq=%s\n", val);
1105                         os_free(val);
1106                 }
1107         }
1108         if (config->p2p_add_cli_chan)
1109                 fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1110         if (config->p2p_optimize_listen_chan !=
1111             DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1112                 fprintf(f, "p2p_optimize_listen_chan=%d\n",
1113                         config->p2p_optimize_listen_chan);
1114         if (config->p2p_go_ht40)
1115                 fprintf(f, "p2p_go_ht40=%u\n", config->p2p_go_ht40);
1116         if (config->p2p_go_vht)
1117                 fprintf(f, "p2p_go_vht=%u\n", config->p2p_go_vht);
1118         if (config->p2p_disabled)
1119                 fprintf(f, "p2p_disabled=%u\n", config->p2p_disabled);
1120         if (config->p2p_no_group_iface)
1121                 fprintf(f, "p2p_no_group_iface=%u\n",
1122                         config->p2p_no_group_iface);
1123         if (config->p2p_ignore_shared_freq)
1124                 fprintf(f, "p2p_ignore_shared_freq=%u\n",
1125                         config->p2p_ignore_shared_freq);
1126 #endif /* CONFIG_P2P */
1127         if (config->country[0] && config->country[1]) {
1128                 fprintf(f, "country=%c%c\n",
1129                         config->country[0], config->country[1]);
1130         }
1131         if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1132                 fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1133         if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1134                 fprintf(f, "bss_expiration_age=%u\n",
1135                         config->bss_expiration_age);
1136         if (config->bss_expiration_scan_count !=
1137             DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1138                 fprintf(f, "bss_expiration_scan_count=%u\n",
1139                         config->bss_expiration_scan_count);
1140         if (config->filter_ssids)
1141                 fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1142         if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1143                 fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1144         if (config->disassoc_low_ack)
1145                 fprintf(f, "disassoc_low_ack=%u\n", config->disassoc_low_ack);
1146 #ifdef CONFIG_HS20
1147         if (config->hs20)
1148                 fprintf(f, "hs20=1\n");
1149 #endif /* CONFIG_HS20 */
1150 #ifdef CONFIG_INTERWORKING
1151         if (config->interworking)
1152                 fprintf(f, "interworking=%u\n", config->interworking);
1153         if (!is_zero_ether_addr(config->hessid))
1154                 fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1155         if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1156                 fprintf(f, "access_network_type=%d\n",
1157                         config->access_network_type);
1158 #endif /* CONFIG_INTERWORKING */
1159         if (config->pbc_in_m1)
1160                 fprintf(f, "pbc_in_m1=%u\n", config->pbc_in_m1);
1161         if (config->wps_nfc_pw_from_config) {
1162                 if (config->wps_nfc_dev_pw_id)
1163                         fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1164                                 config->wps_nfc_dev_pw_id);
1165                 write_global_bin(f, "wps_nfc_dh_pubkey",
1166                                  config->wps_nfc_dh_pubkey);
1167                 write_global_bin(f, "wps_nfc_dh_privkey",
1168                                  config->wps_nfc_dh_privkey);
1169                 write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1170         }
1171
1172         if (config->ext_password_backend)
1173                 fprintf(f, "ext_password_backend=%s\n",
1174                         config->ext_password_backend);
1175         if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1176                 fprintf(f, "p2p_go_max_inactivity=%d\n",
1177                         config->p2p_go_max_inactivity);
1178         if (config->auto_interworking)
1179                 fprintf(f, "auto_interworking=%d\n",
1180                         config->auto_interworking);
1181         if (config->okc)
1182                 fprintf(f, "okc=%d\n", config->okc);
1183         if (config->pmf)
1184                 fprintf(f, "pmf=%d\n", config->pmf);
1185         if (config->dtim_period)
1186                 fprintf(f, "dtim_period=%d\n", config->dtim_period);
1187         if (config->beacon_int)
1188                 fprintf(f, "beacon_int=%d\n", config->beacon_int);
1189
1190         if (config->sae_groups) {
1191                 int i;
1192                 fprintf(f, "sae_groups=");
1193                 for (i = 0; config->sae_groups[i] >= 0; i++) {
1194                         fprintf(f, "%s%d", i > 0 ? " " : "",
1195                                 config->sae_groups[i]);
1196                 }
1197                 fprintf(f, "\n");
1198         }
1199
1200         if (config->ap_vendor_elements) {
1201                 int i, len = wpabuf_len(config->ap_vendor_elements);
1202                 const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1203                 if (len > 0) {
1204                         fprintf(f, "ap_vendor_elements=");
1205                         for (i = 0; i < len; i++)
1206                                 fprintf(f, "%02x", *p++);
1207                         fprintf(f, "\n");
1208                 }
1209         }
1210
1211         if (config->ignore_old_scan_res)
1212                 fprintf(f, "ignore_old_scan_res=%d\n",
1213                         config->ignore_old_scan_res);
1214
1215         if (config->freq_list && config->freq_list[0]) {
1216                 int i;
1217                 fprintf(f, "freq_list=");
1218                 for (i = 0; config->freq_list[i]; i++) {
1219                         fprintf(f, "%s%u", i > 0 ? " " : "",
1220                                 config->freq_list[i]);
1221                 }
1222                 fprintf(f, "\n");
1223         }
1224         if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1225                 fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1226
1227         if (config->sched_scan_interval)
1228                 fprintf(f, "sched_scan_interval=%u\n",
1229                         config->sched_scan_interval);
1230
1231         if (config->external_sim)
1232                 fprintf(f, "external_sim=%d\n", config->external_sim);
1233
1234         if (config->tdls_external_control)
1235                 fprintf(f, "tdls_external_control=%d\n",
1236                         config->tdls_external_control);
1237
1238         if (config->wowlan_triggers)
1239                 fprintf(f, "wowlan_triggers=%s\n",
1240                         config->wowlan_triggers);
1241
1242         if (config->bgscan)
1243                 fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1244
1245         if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1246                 fprintf(f, "p2p_search_delay=%u\n",
1247                         config->p2p_search_delay);
1248
1249         if (config->mac_addr)
1250                 fprintf(f, "mac_addr=%d\n", config->mac_addr);
1251
1252         if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1253                 fprintf(f, "rand_addr_lifetime=%u\n",
1254                         config->rand_addr_lifetime);
1255
1256         if (config->preassoc_mac_addr)
1257                 fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1258
1259         if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1260                 fprintf(f, "key_mgmt_offload=%u\n", config->key_mgmt_offload);
1261
1262         if (config->user_mpm != DEFAULT_USER_MPM)
1263                 fprintf(f, "user_mpm=%d\n", config->user_mpm);
1264
1265         if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1266                 fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1267
1268         if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1269                 fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1270
1271         if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1272                 fprintf(f, "mesh_max_inactivity=%d\n",
1273                         config->mesh_max_inactivity);
1274
1275         if (config->passive_scan)
1276                 fprintf(f, "passive_scan=%d\n", config->passive_scan);
1277
1278         if (config->reassoc_same_bss_optim)
1279                 fprintf(f, "reassoc_same_bss_optim=%d\n",
1280                         config->reassoc_same_bss_optim);
1281 }
1282
1283 #endif /* CONFIG_NO_CONFIG_WRITE */
1284
1285
1286 int wpa_config_write(const char *name, struct wpa_config *config)
1287 {
1288 #ifndef CONFIG_NO_CONFIG_WRITE
1289         FILE *f;
1290         struct wpa_ssid *ssid;
1291         struct wpa_cred *cred;
1292 #ifndef CONFIG_NO_CONFIG_BLOBS
1293         struct wpa_config_blob *blob;
1294 #endif /* CONFIG_NO_CONFIG_BLOBS */
1295         int ret = 0;
1296         const char *orig_name = name;
1297         int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1298         char *tmp_name = os_malloc(tmp_len);
1299
1300         if (tmp_name) {
1301                 os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1302                 name = tmp_name;
1303         }
1304
1305         wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1306
1307         f = fopen(name, "w");
1308         if (f == NULL) {
1309                 wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1310                 os_free(tmp_name);
1311                 return -1;
1312         }
1313
1314         wpa_config_write_global(f, config);
1315
1316         for (cred = config->cred; cred; cred = cred->next) {
1317                 if (cred->temporary)
1318                         continue;
1319                 fprintf(f, "\ncred={\n");
1320                 wpa_config_write_cred(f, cred);
1321                 fprintf(f, "}\n");
1322         }
1323
1324         for (ssid = config->ssid; ssid; ssid = ssid->next) {
1325                 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1326                         continue; /* do not save temporary networks */
1327                 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1328                     !ssid->passphrase)
1329                         continue; /* do not save invalid network */
1330                 fprintf(f, "\nnetwork={\n");
1331                 wpa_config_write_network(f, ssid);
1332                 fprintf(f, "}\n");
1333         }
1334
1335 #ifndef CONFIG_NO_CONFIG_BLOBS
1336         for (blob = config->blobs; blob; blob = blob->next) {
1337                 ret = wpa_config_write_blob(f, blob);
1338                 if (ret)
1339                         break;
1340         }
1341 #endif /* CONFIG_NO_CONFIG_BLOBS */
1342
1343         fclose(f);
1344
1345         if (tmp_name) {
1346                 int chmod_ret = 0;
1347
1348 #ifdef ANDROID
1349                 chmod_ret = chmod(tmp_name,
1350                                   S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1351 #endif /* ANDROID */
1352                 if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1353                         ret = -1;
1354
1355                 os_free(tmp_name);
1356         }
1357
1358         wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1359                    orig_name, ret ? "un" : "");
1360         return ret;
1361 #else /* CONFIG_NO_CONFIG_WRITE */
1362         return -1;
1363 #endif /* CONFIG_NO_CONFIG_WRITE */
1364 }