contrib/wpa/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 "common/ieee802_1x_defs.h"
  23 #include "p2p/p2p.h"
  24 #include "eap_peer/eap_methods.h"
  25 #include "eap_peer/eap.h"
  26
  27
  28 static int newline_terminated(const char *buf, size_t buflen)
  29 {
  30         size_t len = os_strlen(buf);
  31         if (len == 0)
  32                 return 0;
  33         if (len == buflen - 1 && buf[buflen - 1] != '\r' &&
  34             buf[len - 1] != '\n')
  35                 return 0;
  36         return 1;
  37 }
  38
  39
  40 static void skip_line_end(FILE *stream)
  41 {
  42         char buf[100];
  43         while (fgets(buf, sizeof(buf), stream)) {
  44                 buf[sizeof(buf) - 1] = '\0';
  45                 if (newline_terminated(buf, sizeof(buf)))
  46                         return;
  47         }
  48 }
  49
  50
  51 /**
  52  * wpa_config_get_line - Read the next configuration file line
  53  * @s: Buffer for the line
  54  * @size: The buffer length
  55  * @stream: File stream to read from
  56  * @line: Pointer to a variable storing the file line number
  57  * @_pos: Buffer for the pointer to the beginning of data on the text line or
  58  * %NULL if not needed (returned value used instead)
  59  * Returns: Pointer to the beginning of data on the text line or %NULL if no
  60  * more text lines are available.
  61  *
  62  * This function reads the next non-empty line from the configuration file and
  63  * removes comments. The returned string is guaranteed to be null-terminated.
  64  */
  65 static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
  66                                   char **_pos)
  67 {
  68         char *pos, *end, *sstart;
  69
  70         while (fgets(s, size, stream)) {
  71                 (*line)++;
  72                 s[size - 1] = '\0';
  73                 if (!newline_terminated(s, size)) {
  74                         /*
  75                          * The line was truncated - skip rest of it to avoid
  76                          * confusing error messages.
  77                          */
  78                         wpa_printf(MSG_INFO, "Long line in configuration file "
  79                                    "truncated");
  80                         skip_line_end(stream);
  81                 }
  82                 pos = s;
  83
  84                 /* Skip white space from the beginning of line. */
  85                 while (*pos == ' ' || *pos == '\t' || *pos == '\r')
  86                         pos++;
  87
  88                 /* Skip comment lines and empty lines */
  89                 if (*pos == '#' || *pos == '\n' || *pos == '\0')
  90                         continue;
  91
  92                 /*
  93                  * Remove # comments unless they are within a double quoted
  94                  * string.
  95                  */
  96                 sstart = os_strchr(pos, '"');
  97                 if (sstart)
  98                         sstart = os_strrchr(sstart + 1, '"');
  99                 if (!sstart)
 100                         sstart = pos;
 101                 end = os_strchr(sstart, '#');
 102                 if (end)
 103                         *end-- = '\0';
 104                 else
 105                         end = pos + os_strlen(pos) - 1;
 106
 107                 /* Remove trailing white space. */
 108                 while (end > pos &&
 109                        (*end == '\n' || *end == ' ' || *end == '\t' ||
 110                         *end == '\r'))
 111                         *end-- = '\0';
 112
 113                 if (*pos == '\0')
 114                         continue;
 115
 116                 if (_pos)
 117                         *_pos = pos;
 118                 return pos;
 119         }
 120
 121         if (_pos)
 122                 *_pos = NULL;
 123         return NULL;
 124 }
 125
 126
 127 static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
 128 {
 129         int errors = 0;
 130
 131         if (ssid->passphrase) {
 132                 if (ssid->psk_set) {
 133                         wpa_printf(MSG_ERROR, "Line %d: both PSK and "
 134                                    "passphrase configured.", line);
 135                         errors++;
 136                 }
 137                 wpa_config_update_psk(ssid);
 138         }
 139
 140         if (ssid->disabled == 2)
 141                 ssid->p2p_persistent_group = 1;
 142
 143         if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
 144             !(ssid->pairwise_cipher & (WPA_CIPHER_CCMP | WPA_CIPHER_CCMP_256 |
 145                                        WPA_CIPHER_GCMP | WPA_CIPHER_GCMP_256 |
 146                                        WPA_CIPHER_NONE))) {
 147                 /* Group cipher cannot be stronger than the pairwise cipher. */
 148                 wpa_printf(MSG_DEBUG, "Line %d: removed CCMP from group cipher"
 149                            " list since it was not allowed for pairwise "
 150                            "cipher", line);
 151                 ssid->group_cipher &= ~WPA_CIPHER_CCMP;
 152         }
 153
 154         if (ssid->mode == WPAS_MODE_MESH &&
 155             (ssid->key_mgmt != WPA_KEY_MGMT_NONE &&
 156             ssid->key_mgmt != WPA_KEY_MGMT_SAE)) {
 157                 wpa_printf(MSG_ERROR,
 158                            "Line %d: key_mgmt for mesh network should be open or SAE",
 159                            line);
 160                 errors++;
 161         }
 162
 163         return errors;
 164 }
 165
 166
 167 static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
 168 {
 169         struct wpa_ssid *ssid;
 170         int errors = 0, end = 0;
 171         char buf[2000], *pos, *pos2;
 172
 173         wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
 174                    *line);
 175         ssid = os_zalloc(sizeof(*ssid));
 176         if (ssid == NULL)
 177                 return NULL;
 178         dl_list_init(&ssid->psk_list);
 179         ssid->id = id;
 180
 181         wpa_config_set_network_defaults(ssid);
 182
 183         while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
 184                 if (os_strcmp(pos, "}") == 0) {
 185                         end = 1;
 186                         break;
 187                 }
 188
 189                 pos2 = os_strchr(pos, '=');
 190                 if (pos2 == NULL) {
 191                         wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
 192                                    "'%s'.", *line, pos);
 193                         errors++;
 194                         continue;
 195                 }
 196
 197                 *pos2++ = '\0';
 198                 if (*pos2 == '"') {
 199                         if (os_strchr(pos2 + 1, '"') == NULL) {
 200                                 wpa_printf(MSG_ERROR, "Line %d: invalid "
 201                                            "quotation '%s'.", *line, pos2);
 202                                 errors++;
 203                                 continue;
 204                         }
 205                 }
 206
 207                 if (wpa_config_set(ssid, pos, pos2, *line) < 0)
 208                         errors++;
 209         }
 210
 211         if (!end) {
 212                 wpa_printf(MSG_ERROR, "Line %d: network block was not "
 213                            "terminated properly.", *line);
 214                 errors++;
 215         }
 216
 217         errors += wpa_config_validate_network(ssid, *line);
 218
 219         if (errors) {
 220                 wpa_config_free_ssid(ssid);
 221                 ssid = NULL;
 222         }
 223
 224         return ssid;
 225 }
 226
 227
 228 static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id)
 229 {
 230         struct wpa_cred *cred;
 231         int errors = 0, end = 0;
 232         char buf[256], *pos, *pos2;
 233
 234         wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line);
 235         cred = os_zalloc(sizeof(*cred));
 236         if (cred == NULL)
 237                 return NULL;
 238         cred->id = id;
 239         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
 240
 241         while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
 242                 if (os_strcmp(pos, "}") == 0) {
 243                         end = 1;
 244                         break;
 245                 }
 246
 247                 pos2 = os_strchr(pos, '=');
 248                 if (pos2 == NULL) {
 249                         wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
 250                                    "'%s'.", *line, pos);
 251                         errors++;
 252                         continue;
 253                 }
 254
 255                 *pos2++ = '\0';
 256                 if (*pos2 == '"') {
 257                         if (os_strchr(pos2 + 1, '"') == NULL) {
 258                                 wpa_printf(MSG_ERROR, "Line %d: invalid "
 259                                            "quotation '%s'.", *line, pos2);
 260                                 errors++;
 261                                 continue;
 262                         }
 263                 }
 264
 265                 if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
 266                         errors++;
 267         }
 268
 269         if (!end) {
 270                 wpa_printf(MSG_ERROR, "Line %d: cred block was not "
 271                            "terminated properly.", *line);
 272                 errors++;
 273         }
 274
 275         if (errors) {
 276                 wpa_config_free_cred(cred);
 277                 cred = NULL;
 278         }
 279
 280         return cred;
 281 }
 282
 283
 284 #ifndef CONFIG_NO_CONFIG_BLOBS
 285 static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
 286                                                      const char *name)
 287 {
 288         struct wpa_config_blob *blob;
 289         char buf[256], *pos;
 290         unsigned char *encoded = NULL, *nencoded;
 291         int end = 0;
 292         size_t encoded_len = 0, len;
 293
 294         wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
 295                    *line, name);
 296
 297         while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
 298                 if (os_strcmp(pos, "}") == 0) {
 299                         end = 1;
 300                         break;
 301                 }
 302
 303                 len = os_strlen(pos);
 304                 nencoded = os_realloc(encoded, encoded_len + len);
 305                 if (nencoded == NULL) {
 306                         wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
 307                                    "blob", *line);
 308                         os_free(encoded);
 309                         return NULL;
 310                 }
 311                 encoded = nencoded;
 312                 os_memcpy(encoded + encoded_len, pos, len);
 313                 encoded_len += len;
 314         }
 315
 316         if (!end || !encoded) {
 317                 wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
 318                            "properly", *line);
 319                 os_free(encoded);
 320                 return NULL;
 321         }
 322
 323         blob = os_zalloc(sizeof(*blob));
 324         if (blob == NULL) {
 325                 os_free(encoded);
 326                 return NULL;
 327         }
 328         blob->name = os_strdup(name);
 329         blob->data = base64_decode(encoded, encoded_len, &blob->len);
 330         os_free(encoded);
 331
 332         if (blob->name == NULL || blob->data == NULL) {
 333                 wpa_config_free_blob(blob);
 334                 return NULL;
 335         }
 336
 337         return blob;
 338 }
 339
 340
 341 static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
 342                                    int *line, char *bname)
 343 {
 344         char *name_end;
 345         struct wpa_config_blob *blob;
 346
 347         name_end = os_strchr(bname, '=');
 348         if (name_end == NULL) {
 349                 wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
 350                            *line);
 351                 return -1;
 352         }
 353         *name_end = '\0';
 354
 355         blob = wpa_config_read_blob(f, line, bname);
 356         if (blob == NULL) {
 357                 wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
 358                            *line, bname);
 359                 return -1;
 360         }
 361         wpa_config_set_blob(config, blob);
 362         return 0;
 363 }
 364 #endif /* CONFIG_NO_CONFIG_BLOBS */
 365
 366
 367 struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
 368 {
 369         FILE *f;
 370         char buf[512], *pos;
 371         int errors = 0, line = 0;
 372         struct wpa_ssid *ssid, *tail, *head;
 373         struct wpa_cred *cred, *cred_tail, *cred_head;
 374         struct wpa_config *config;
 375         int id = 0;
 376         int cred_id = 0;
 377
 378         if (name == NULL)
 379                 return NULL;
 380         if (cfgp)
 381                 config = cfgp;
 382         else
 383                 config = wpa_config_alloc_empty(NULL, NULL);
 384         if (config == NULL) {
 385                 wpa_printf(MSG_ERROR, "Failed to allocate config file "
 386                            "structure");
 387                 return NULL;
 388         }
 389         tail = head = config->ssid;
 390         while (tail && tail->next)
 391                 tail = tail->next;
 392         cred_tail = cred_head = config->cred;
 393         while (cred_tail && cred_tail->next)
 394                 cred_tail = cred_tail->next;
 395
 396         wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
 397         f = fopen(name, "r");
 398         if (f == NULL) {
 399                 wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
 400                            "error: %s", name, strerror(errno));
 401                 if (config != cfgp)
 402                         os_free(config);
 403                 return NULL;
 404         }
 405
 406         while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
 407                 if (os_strcmp(pos, "network={") == 0) {
 408                         ssid = wpa_config_read_network(f, &line, id++);
 409                         if (ssid == NULL) {
 410                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
 411                                            "parse network block.", line);
 412                                 errors++;
 413                                 continue;
 414                         }
 415                         if (head == NULL) {
 416                                 head = tail = ssid;
 417                         } else {
 418                                 tail->next = ssid;
 419                                 tail = ssid;
 420                         }
 421                         if (wpa_config_add_prio_network(config, ssid)) {
 422                                 wpa_printf(MSG_ERROR, "Line %d: failed to add "
 423                                            "network block to priority list.",
 424                                            line);
 425                                 errors++;
 426                                 continue;
 427                         }
 428                 } else if (os_strcmp(pos, "cred={") == 0) {
 429                         cred = wpa_config_read_cred(f, &line, cred_id++);
 430                         if (cred == NULL) {
 431                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
 432                                            "parse cred block.", line);
 433                                 errors++;
 434                                 continue;
 435                         }
 436                         if (cred_head == NULL) {
 437                                 cred_head = cred_tail = cred;
 438                         } else {
 439                                 cred_tail->next = cred;
 440                                 cred_tail = cred;
 441                         }
 442 #ifndef CONFIG_NO_CONFIG_BLOBS
 443                 } else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
 444                         if (wpa_config_process_blob(config, f, &line, pos + 12)
 445                             < 0) {
 446                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
 447                                            "process blob.", line);
 448                                 errors++;
 449                                 continue;
 450                         }
 451 #endif /* CONFIG_NO_CONFIG_BLOBS */
 452                 } else if (wpa_config_process_global(config, pos, line) < 0) {
 453                         wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
 454                                    "line '%s'.", line, pos);
 455                         errors++;
 456                         continue;
 457                 }
 458         }
 459
 460         fclose(f);
 461
 462         config->ssid = head;
 463         wpa_config_debug_dump_networks(config);
 464         config->cred = cred_head;
 465
 466 #ifndef WPA_IGNORE_CONFIG_ERRORS
 467         if (errors) {
 468                 if (config != cfgp)
 469                         wpa_config_free(config);
 470                 config = NULL;
 471                 head = NULL;
 472         }
 473 #endif /* WPA_IGNORE_CONFIG_ERRORS */
 474
 475         return config;
 476 }
 477
 478
 479 #ifndef CONFIG_NO_CONFIG_WRITE
 480
 481 static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
 482 {
 483         char *value = wpa_config_get(ssid, field);
 484         if (value == NULL)
 485                 return;
 486         fprintf(f, "\t%s=%s\n", field, value);
 487         os_free(value);
 488 }
 489
 490
 491 static void write_int(FILE *f, const char *field, int value, int def)
 492 {
 493         if (value == def)
 494                 return;
 495         fprintf(f, "\t%s=%d\n", field, value);
 496 }
 497
 498
 499 static void write_bssid(FILE *f, struct wpa_ssid *ssid)
 500 {
 501         char *value = wpa_config_get(ssid, "bssid");
 502         if (value == NULL)
 503                 return;
 504         fprintf(f, "\tbssid=%s\n", value);
 505         os_free(value);
 506 }
 507
 508
 509 static void write_bssid_hint(FILE *f, struct wpa_ssid *ssid)
 510 {
 511         char *value = wpa_config_get(ssid, "bssid_hint");
 512
 513         if (!value)
 514                 return;
 515         fprintf(f, "\tbssid_hint=%s\n", value);
 516         os_free(value);
 517 }
 518
 519
 520 static void write_psk(FILE *f, struct wpa_ssid *ssid)
 521 {
 522         char *value;
 523
 524         if (ssid->mem_only_psk)
 525                 return;
 526
 527         value = wpa_config_get(ssid, "psk");
 528         if (value == NULL)
 529                 return;
 530         fprintf(f, "\tpsk=%s\n", value);
 531         os_free(value);
 532 }
 533
 534
 535 static void write_proto(FILE *f, struct wpa_ssid *ssid)
 536 {
 537         char *value;
 538
 539         if (ssid->proto == DEFAULT_PROTO)
 540                 return;
 541
 542         value = wpa_config_get(ssid, "proto");
 543         if (value == NULL)
 544                 return;
 545         if (value[0])
 546                 fprintf(f, "\tproto=%s\n", value);
 547         os_free(value);
 548 }
 549
 550
 551 static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
 552 {
 553         char *value;
 554
 555         if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
 556                 return;
 557
 558         value = wpa_config_get(ssid, "key_mgmt");
 559         if (value == NULL)
 560                 return;
 561         if (value[0])
 562                 fprintf(f, "\tkey_mgmt=%s\n", value);
 563         os_free(value);
 564 }
 565
 566
 567 static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
 568 {
 569         char *value;
 570
 571         if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
 572                 return;
 573
 574         value = wpa_config_get(ssid, "pairwise");
 575         if (value == NULL)
 576                 return;
 577         if (value[0])
 578                 fprintf(f, "\tpairwise=%s\n", value);
 579         os_free(value);
 580 }
 581
 582
 583 static void write_group(FILE *f, struct wpa_ssid *ssid)
 584 {
 585         char *value;
 586
 587         if (ssid->group_cipher == DEFAULT_GROUP)
 588                 return;
 589
 590         value = wpa_config_get(ssid, "group");
 591         if (value == NULL)
 592                 return;
 593         if (value[0])
 594                 fprintf(f, "\tgroup=%s\n", value);
 595         os_free(value);
 596 }
 597
 598
 599 static void write_group_mgmt(FILE *f, struct wpa_ssid *ssid)
 600 {
 601         char *value;
 602
 603         if (!ssid->group_mgmt_cipher)
 604                 return;
 605
 606         value = wpa_config_get(ssid, "group_mgmt");
 607         if (!value)
 608                 return;
 609         if (value[0])
 610                 fprintf(f, "\tgroup_mgmt=%s\n", value);
 611         os_free(value);
 612 }
 613
 614
 615 static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
 616 {
 617         char *value;
 618
 619         if (ssid->auth_alg == 0)
 620                 return;
 621
 622         value = wpa_config_get(ssid, "auth_alg");
 623         if (value == NULL)
 624                 return;
 625         if (value[0])
 626                 fprintf(f, "\tauth_alg=%s\n", value);
 627         os_free(value);
 628 }
 629
 630
 631 #ifdef IEEE8021X_EAPOL
 632 static void write_eap(FILE *f, struct wpa_ssid *ssid)
 633 {
 634         char *value;
 635
 636         value = wpa_config_get(ssid, "eap");
 637         if (value == NULL)
 638                 return;
 639
 640         if (value[0])
 641                 fprintf(f, "\teap=%s\n", value);
 642         os_free(value);
 643 }
 644 #endif /* IEEE8021X_EAPOL */
 645
 646
 647 static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
 648 {
 649         char field[20], *value;
 650         int res;
 651
 652         res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
 653         if (os_snprintf_error(sizeof(field), res))
 654                 return;
 655         value = wpa_config_get(ssid, field);
 656         if (value) {
 657                 fprintf(f, "\t%s=%s\n", field, value);
 658                 os_free(value);
 659         }
 660 }
 661
 662
 663 #ifdef CONFIG_P2P
 664
 665 static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
 666 {
 667         char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
 668         if (value == NULL)
 669                 return;
 670         fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
 671         os_free(value);
 672 }
 673
 674 static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
 675 {
 676         char *value = wpa_config_get(ssid, "p2p_client_list");
 677         if (value == NULL)
 678                 return;
 679         fprintf(f, "\tp2p_client_list=%s\n", value);
 680         os_free(value);
 681 }
 682
 683
 684 static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
 685 {
 686         struct psk_list_entry *psk;
 687         char hex[32 * 2 + 1];
 688
 689         dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
 690                 wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
 691                 fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
 692                         psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
 693         }
 694 }
 695
 696 #endif /* CONFIG_P2P */
 697
 698
 699 #ifdef CONFIG_MACSEC
 700
 701 static void write_mka_cak(FILE *f, struct wpa_ssid *ssid)
 702 {
 703         char *value;
 704
 705         if (!(ssid->mka_psk_set & MKA_PSK_SET_CAK))
 706                 return;
 707
 708         value = wpa_config_get(ssid, "mka_cak");
 709         if (!value)
 710                 return;
 711         fprintf(f, "\tmka_cak=%s\n", value);
 712         os_free(value);
 713 }
 714
 715
 716 static void write_mka_ckn(FILE *f, struct wpa_ssid *ssid)
 717 {
 718         char *value;
 719
 720         if (!(ssid->mka_psk_set & MKA_PSK_SET_CKN))
 721                 return;
 722
 723         value = wpa_config_get(ssid, "mka_ckn");
 724         if (!value)
 725                 return;
 726         fprintf(f, "\tmka_ckn=%s\n", value);
 727         os_free(value);
 728 }
 729
 730 #endif /* CONFIG_MACSEC */
 731
 732
 733 static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
 734 {
 735         int i;
 736
 737 #define STR(t) write_str(f, #t, ssid)
 738 #define INT(t) write_int(f, #t, ssid->t, 0)
 739 #define INTe(t) write_int(f, #t, ssid->eap.t, 0)
 740 #define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
 741 #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
 742
 743         STR(ssid);
 744         INT(scan_ssid);
 745         write_bssid(f, ssid);
 746         write_bssid_hint(f, ssid);
 747         write_str(f, "bssid_blacklist", ssid);
 748         write_str(f, "bssid_whitelist", ssid);
 749         write_psk(f, ssid);
 750         INT(mem_only_psk);
 751         STR(sae_password);
 752         STR(sae_password_id);
 753         write_proto(f, ssid);
 754         write_key_mgmt(f, ssid);
 755         INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
 756         write_pairwise(f, ssid);
 757         write_group(f, ssid);
 758         write_group_mgmt(f, ssid);
 759         write_auth_alg(f, ssid);
 760         STR(bgscan);
 761         STR(autoscan);
 762         STR(scan_freq);
 763 #ifdef IEEE8021X_EAPOL
 764         write_eap(f, ssid);
 765         STR(identity);
 766         STR(anonymous_identity);
 767         STR(imsi_identity);
 768         STR(password);
 769         STR(ca_cert);
 770         STR(ca_path);
 771         STR(client_cert);
 772         STR(private_key);
 773         STR(private_key_passwd);
 774         STR(dh_file);
 775         STR(subject_match);
 776         STR(altsubject_match);
 777         STR(domain_suffix_match);
 778         STR(domain_match);
 779         STR(ca_cert2);
 780         STR(ca_path2);
 781         STR(client_cert2);
 782         STR(private_key2);
 783         STR(private_key2_passwd);
 784         STR(dh_file2);
 785         STR(subject_match2);
 786         STR(altsubject_match2);
 787         STR(domain_suffix_match2);
 788         STR(domain_match2);
 789         STR(phase1);
 790         STR(phase2);
 791         STR(pcsc);
 792         STR(pin);
 793         STR(engine_id);
 794         STR(key_id);
 795         STR(cert_id);
 796         STR(ca_cert_id);
 797         STR(key2_id);
 798         STR(pin2);
 799         STR(engine2_id);
 800         STR(cert2_id);
 801         STR(ca_cert2_id);
 802         INTe(engine);
 803         INTe(engine2);
 804         INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
 805         STR(openssl_ciphers);
 806         INTe(erp);
 807 #endif /* IEEE8021X_EAPOL */
 808         for (i = 0; i < 4; i++)
 809                 write_wep_key(f, i, ssid);
 810         INT(wep_tx_keyidx);
 811         INT(priority);
 812 #ifdef IEEE8021X_EAPOL
 813         INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
 814         STR(pac_file);
 815         INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
 816         INTe(ocsp);
 817         INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
 818 #endif /* IEEE8021X_EAPOL */
 819         INT(mode);
 820         INT(no_auto_peer);
 821         INT(frequency);
 822         INT(fixed_freq);
 823 #ifdef CONFIG_ACS
 824         INT(acs);
 825 #endif /* CONFIG_ACS */
 826         write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
 827         INT(disabled);
 828         INT(mixed_cell);
 829         INT(vht);
 830         INT_DEF(ht, 1);
 831         INT(ht40);
 832         INT(max_oper_chwidth);
 833         INT(vht_center_freq1);
 834         INT(vht_center_freq2);
 835         INT(pbss);
 836         INT(wps_disabled);
 837         INT(fils_dh_group);
 838 #ifdef CONFIG_IEEE80211W
 839         write_int(f, "ieee80211w", ssid->ieee80211w,
 840                   MGMT_FRAME_PROTECTION_DEFAULT);
 841 #endif /* CONFIG_IEEE80211W */
 842         STR(id_str);
 843 #ifdef CONFIG_P2P
 844         write_go_p2p_dev_addr(f, ssid);
 845         write_p2p_client_list(f, ssid);
 846         write_psk_list(f, ssid);
 847 #endif /* CONFIG_P2P */
 848         INT(ap_max_inactivity);
 849         INT(dtim_period);
 850         INT(beacon_int);
 851 #ifdef CONFIG_MACSEC
 852         INT(macsec_policy);
 853         write_mka_cak(f, ssid);
 854         write_mka_ckn(f, ssid);
 855         INT(macsec_integ_only);
 856         INT(macsec_port);
 857         INT_DEF(mka_priority, DEFAULT_PRIO_NOT_KEY_SERVER);
 858 #endif /* CONFIG_MACSEC */
 859 #ifdef CONFIG_HS20
 860         INT(update_identifier);
 861         STR(roaming_consortium_selection);
 862 #endif /* CONFIG_HS20 */
 863         write_int(f, "mac_addr", ssid->mac_addr, -1);
 864 #ifdef CONFIG_MESH
 865         STR(mesh_basic_rates);
 866         INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
 867         INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
 868         INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
 869         INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
 870         INT_DEF(mesh_rssi_threshold, DEFAULT_MESH_RSSI_THRESHOLD);
 871 #endif /* CONFIG_MESH */
 872         INT(wpa_ptk_rekey);
 873         INT(group_rekey);
 874         INT(ignore_broadcast_ssid);
 875 #ifdef CONFIG_DPP
 876         STR(dpp_connector);
 877         STR(dpp_netaccesskey);
 878         INT(dpp_netaccesskey_expiry);
 879         STR(dpp_csign);
 880 #endif /* CONFIG_DPP */
 881         INT(owe_group);
 882         INT(owe_only);
 883 #ifdef CONFIG_HT_OVERRIDES
 884         INT_DEF(disable_ht, DEFAULT_DISABLE_HT);
 885         INT_DEF(disable_ht40, DEFAULT_DISABLE_HT40);
 886         INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
 887         INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
 888         INT(ht40_intolerant);
 889         INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
 890         INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
 891         INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);
 892         STR(ht_mcs);
 893 #endif /* CONFIG_HT_OVERRIDES */
 894 #ifdef CONFIG_VHT_OVERRIDES
 895         INT(disable_vht);
 896         INT(vht_capa);
 897         INT(vht_capa_mask);
 898         INT_DEF(vht_rx_mcs_nss_1, -1);
 899         INT_DEF(vht_rx_mcs_nss_2, -1);
 900         INT_DEF(vht_rx_mcs_nss_3, -1);
 901         INT_DEF(vht_rx_mcs_nss_4, -1);
 902         INT_DEF(vht_rx_mcs_nss_5, -1);
 903         INT_DEF(vht_rx_mcs_nss_6, -1);
 904         INT_DEF(vht_rx_mcs_nss_7, -1);
 905         INT_DEF(vht_rx_mcs_nss_8, -1);
 906         INT_DEF(vht_tx_mcs_nss_1, -1);
 907         INT_DEF(vht_tx_mcs_nss_2, -1);
 908         INT_DEF(vht_tx_mcs_nss_3, -1);
 909         INT_DEF(vht_tx_mcs_nss_4, -1);
 910         INT_DEF(vht_tx_mcs_nss_5, -1);
 911         INT_DEF(vht_tx_mcs_nss_6, -1);
 912         INT_DEF(vht_tx_mcs_nss_7, -1);
 913         INT_DEF(vht_tx_mcs_nss_8, -1);
 914 #endif /* CONFIG_VHT_OVERRIDES */
 915
 916 #undef STR
 917 #undef INT
 918 #undef INT_DEF
 919 }
 920
 921
 922 static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
 923 {
 924         size_t i;
 925
 926         if (cred->priority)
 927                 fprintf(f, "\tpriority=%d\n", cred->priority);
 928         if (cred->pcsc)
 929                 fprintf(f, "\tpcsc=%d\n", cred->pcsc);
 930         if (cred->realm)
 931                 fprintf(f, "\trealm=\"%s\"\n", cred->realm);
 932         if (cred->username)
 933                 fprintf(f, "\tusername=\"%s\"\n", cred->username);
 934         if (cred->password && cred->ext_password)
 935                 fprintf(f, "\tpassword=ext:%s\n", cred->password);
 936         else if (cred->password)
 937                 fprintf(f, "\tpassword=\"%s\"\n", cred->password);
 938         if (cred->ca_cert)
 939                 fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
 940         if (cred->client_cert)
 941                 fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
 942         if (cred->private_key)
 943                 fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
 944         if (cred->private_key_passwd)
 945                 fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
 946                         cred->private_key_passwd);
 947         if (cred->imsi)
 948                 fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
 949         if (cred->milenage)
 950                 fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
 951         for (i = 0; i < cred->num_domain; i++)
 952                 fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
 953         if (cred->domain_suffix_match)
 954                 fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
 955                         cred->domain_suffix_match);
 956         if (cred->roaming_consortium_len) {
 957                 fprintf(f, "\troaming_consortium=");
 958                 for (i = 0; i < cred->roaming_consortium_len; i++)
 959                         fprintf(f, "%02x", cred->roaming_consortium[i]);
 960                 fprintf(f, "\n");
 961         }
 962         if (cred->eap_method) {
 963                 const char *name;
 964                 name = eap_get_name(cred->eap_method[0].vendor,
 965                                     cred->eap_method[0].method);
 966                 if (name)
 967                         fprintf(f, "\teap=%s\n", name);
 968         }
 969         if (cred->phase1)
 970                 fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
 971         if (cred->phase2)
 972                 fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
 973         if (cred->excluded_ssid) {
 974                 size_t j;
 975                 for (i = 0; i < cred->num_excluded_ssid; i++) {
 976                         struct excluded_ssid *e = &cred->excluded_ssid[i];
 977                         fprintf(f, "\texcluded_ssid=");
 978                         for (j = 0; j < e->ssid_len; j++)
 979                                 fprintf(f, "%02x", e->ssid[j]);
 980                         fprintf(f, "\n");
 981                 }
 982         }
 983         if (cred->roaming_partner) {
 984                 for (i = 0; i < cred->num_roaming_partner; i++) {
 985                         struct roaming_partner *p = &cred->roaming_partner[i];
 986                         fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
 987                                 p->fqdn, p->exact_match, p->priority,
 988                                 p->country);
 989                 }
 990         }
 991         if (cred->update_identifier)
 992                 fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
 993
 994         if (cred->provisioning_sp)
 995                 fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
 996         if (cred->sp_priority)
 997                 fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
 998
 999         if (cred->min_dl_bandwidth_home)
1000                 fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
1001                         cred->min_dl_bandwidth_home);
1002         if (cred->min_ul_bandwidth_home)
1003                 fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
1004                         cred->min_ul_bandwidth_home);
1005         if (cred->min_dl_bandwidth_roaming)
1006                 fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
1007                         cred->min_dl_bandwidth_roaming);
1008         if (cred->min_ul_bandwidth_roaming)
1009                 fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
1010                         cred->min_ul_bandwidth_roaming);
1011
1012         if (cred->max_bss_load)
1013                 fprintf(f, "\tmax_bss_load=%u\n",
1014                         cred->max_bss_load);
1015
1016         if (cred->ocsp)
1017                 fprintf(f, "\tocsp=%d\n", cred->ocsp);
1018
1019         if (cred->num_req_conn_capab) {
1020                 for (i = 0; i < cred->num_req_conn_capab; i++) {
1021                         int *ports;
1022
1023                         fprintf(f, "\treq_conn_capab=%u",
1024                                 cred->req_conn_capab_proto[i]);
1025                         ports = cred->req_conn_capab_port[i];
1026                         if (ports) {
1027                                 int j;
1028                                 for (j = 0; ports[j] != -1; j++) {
1029                                         fprintf(f, "%s%d", j > 0 ? "," : ":",
1030                                                 ports[j]);
1031                                 }
1032                         }
1033                         fprintf(f, "\n");
1034                 }
1035         }
1036
1037         if (cred->required_roaming_consortium_len) {
1038                 fprintf(f, "\trequired_roaming_consortium=");
1039                 for (i = 0; i < cred->required_roaming_consortium_len; i++)
1040                         fprintf(f, "%02x",
1041                                 cred->required_roaming_consortium[i]);
1042                 fprintf(f, "\n");
1043         }
1044
1045         if (cred->num_roaming_consortiums) {
1046                 size_t j;
1047
1048                 fprintf(f, "\troaming_consortiums=\"");
1049                 for (i = 0; i < cred->num_roaming_consortiums; i++) {
1050                         if (i > 0)
1051                                 fprintf(f, ",");
1052                         for (j = 0; j < cred->roaming_consortiums_len[i]; j++)
1053                                 fprintf(f, "%02x",
1054                                         cred->roaming_consortiums[i][j]);
1055                 }
1056                 fprintf(f, "\"\n");
1057         }
1058
1059         if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
1060                 fprintf(f, "\tsim_num=%d\n", cred->sim_num);
1061 }
1062
1063
1064 #ifndef CONFIG_NO_CONFIG_BLOBS
1065 static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
1066 {
1067         unsigned char *encoded;
1068
1069         encoded = base64_encode(blob->data, blob->len, NULL);
1070         if (encoded == NULL)
1071                 return -1;
1072
1073         fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
1074         os_free(encoded);
1075         return 0;
1076 }
1077 #endif /* CONFIG_NO_CONFIG_BLOBS */
1078
1079
1080 static void write_global_bin(FILE *f, const char *field,
1081                              const struct wpabuf *val)
1082 {
1083         size_t i;
1084         const u8 *pos;
1085
1086         if (val == NULL)
1087                 return;
1088
1089         fprintf(f, "%s=", field);
1090         pos = wpabuf_head(val);
1091         for (i = 0; i < wpabuf_len(val); i++)
1092                 fprintf(f, "%02X", *pos++);
1093         fprintf(f, "\n");
1094 }
1095
1096
1097 static void wpa_config_write_global(FILE *f, struct wpa_config *config)
1098 {
1099 #ifdef CONFIG_CTRL_IFACE
1100         if (config->ctrl_interface)
1101                 fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
1102         if (config->ctrl_interface_group)
1103                 fprintf(f, "ctrl_interface_group=%s\n",
1104                         config->ctrl_interface_group);
1105 #endif /* CONFIG_CTRL_IFACE */
1106         if (config->eapol_version != DEFAULT_EAPOL_VERSION)
1107                 fprintf(f, "eapol_version=%d\n", config->eapol_version);
1108         if (config->ap_scan != DEFAULT_AP_SCAN)
1109                 fprintf(f, "ap_scan=%d\n", config->ap_scan);
1110         if (config->disable_scan_offload)
1111                 fprintf(f, "disable_scan_offload=%d\n",
1112                         config->disable_scan_offload);
1113         if (config->fast_reauth != DEFAULT_FAST_REAUTH)
1114                 fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
1115         if (config->opensc_engine_path)
1116                 fprintf(f, "opensc_engine_path=%s\n",
1117                         config->opensc_engine_path);
1118         if (config->pkcs11_engine_path)
1119                 fprintf(f, "pkcs11_engine_path=%s\n",
1120                         config->pkcs11_engine_path);
1121         if (config->pkcs11_module_path)
1122                 fprintf(f, "pkcs11_module_path=%s\n",
1123                         config->pkcs11_module_path);
1124         if (config->openssl_ciphers)
1125                 fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
1126         if (config->pcsc_reader)
1127                 fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
1128         if (config->pcsc_pin)
1129                 fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
1130         if (config->driver_param)
1131                 fprintf(f, "driver_param=%s\n", config->driver_param);
1132         if (config->dot11RSNAConfigPMKLifetime)
1133                 fprintf(f, "dot11RSNAConfigPMKLifetime=%u\n",
1134                         config->dot11RSNAConfigPMKLifetime);
1135         if (config->dot11RSNAConfigPMKReauthThreshold)
1136                 fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%u\n",
1137                         config->dot11RSNAConfigPMKReauthThreshold);
1138         if (config->dot11RSNAConfigSATimeout)
1139                 fprintf(f, "dot11RSNAConfigSATimeout=%u\n",
1140                         config->dot11RSNAConfigSATimeout);
1141         if (config->update_config)
1142                 fprintf(f, "update_config=%d\n", config->update_config);
1143 #ifdef CONFIG_WPS
1144         if (!is_nil_uuid(config->uuid)) {
1145                 char buf[40];
1146                 uuid_bin2str(config->uuid, buf, sizeof(buf));
1147                 fprintf(f, "uuid=%s\n", buf);
1148         }
1149         if (config->auto_uuid)
1150                 fprintf(f, "auto_uuid=%d\n", config->auto_uuid);
1151         if (config->device_name)
1152                 fprintf(f, "device_name=%s\n", config->device_name);
1153         if (config->manufacturer)
1154                 fprintf(f, "manufacturer=%s\n", config->manufacturer);
1155         if (config->model_name)
1156                 fprintf(f, "model_name=%s\n", config->model_name);
1157         if (config->model_number)
1158                 fprintf(f, "model_number=%s\n", config->model_number);
1159         if (config->serial_number)
1160                 fprintf(f, "serial_number=%s\n", config->serial_number);
1161         {
1162                 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1163                 buf = wps_dev_type_bin2str(config->device_type,
1164                                            _buf, sizeof(_buf));
1165                 if (os_strcmp(buf, "0-00000000-0") != 0)
1166                         fprintf(f, "device_type=%s\n", buf);
1167         }
1168         if (WPA_GET_BE32(config->os_version))
1169                 fprintf(f, "os_version=%08x\n",
1170                         WPA_GET_BE32(config->os_version));
1171         if (config->config_methods)
1172                 fprintf(f, "config_methods=%s\n", config->config_methods);
1173         if (config->wps_cred_processing)
1174                 fprintf(f, "wps_cred_processing=%d\n",
1175                         config->wps_cred_processing);
1176         if (config->wps_vendor_ext_m1) {
1177                 int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1178                 const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1179                 if (len > 0) {
1180                         fprintf(f, "wps_vendor_ext_m1=");
1181                         for (i = 0; i < len; i++)
1182                                 fprintf(f, "%02x", *p++);
1183                         fprintf(f, "\n");
1184                 }
1185         }
1186 #endif /* CONFIG_WPS */
1187 #ifdef CONFIG_P2P
1188         {
1189                 int i;
1190                 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1191
1192                 for (i = 0; i < config->num_sec_device_types; i++) {
1193                         buf = wps_dev_type_bin2str(config->sec_device_type[i],
1194                                                    _buf, sizeof(_buf));
1195                         if (buf)
1196                                 fprintf(f, "sec_device_type=%s\n", buf);
1197                 }
1198         }
1199         if (config->p2p_listen_reg_class)
1200                 fprintf(f, "p2p_listen_reg_class=%d\n",
1201                         config->p2p_listen_reg_class);
1202         if (config->p2p_listen_channel)
1203                 fprintf(f, "p2p_listen_channel=%d\n",
1204                         config->p2p_listen_channel);
1205         if (config->p2p_oper_reg_class)
1206                 fprintf(f, "p2p_oper_reg_class=%d\n",
1207                         config->p2p_oper_reg_class);
1208         if (config->p2p_oper_channel)
1209                 fprintf(f, "p2p_oper_channel=%d\n", config->p2p_oper_channel);
1210         if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1211                 fprintf(f, "p2p_go_intent=%d\n", config->p2p_go_intent);
1212         if (config->p2p_ssid_postfix)
1213                 fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1214         if (config->persistent_reconnect)
1215                 fprintf(f, "persistent_reconnect=%d\n",
1216                         config->persistent_reconnect);
1217         if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1218                 fprintf(f, "p2p_intra_bss=%d\n", config->p2p_intra_bss);
1219         if (config->p2p_group_idle)
1220                 fprintf(f, "p2p_group_idle=%d\n", config->p2p_group_idle);
1221         if (config->p2p_passphrase_len)
1222                 fprintf(f, "p2p_passphrase_len=%u\n",
1223                         config->p2p_passphrase_len);
1224         if (config->p2p_pref_chan) {
1225                 unsigned int i;
1226                 fprintf(f, "p2p_pref_chan=");
1227                 for (i = 0; i < config->num_p2p_pref_chan; i++) {
1228                         fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1229                                 config->p2p_pref_chan[i].op_class,
1230                                 config->p2p_pref_chan[i].chan);
1231                 }
1232                 fprintf(f, "\n");
1233         }
1234         if (config->p2p_no_go_freq.num) {
1235                 char *val = freq_range_list_str(&config->p2p_no_go_freq);
1236                 if (val) {
1237                         fprintf(f, "p2p_no_go_freq=%s\n", val);
1238                         os_free(val);
1239                 }
1240         }
1241         if (config->p2p_add_cli_chan)
1242                 fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1243         if (config->p2p_optimize_listen_chan !=
1244             DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1245                 fprintf(f, "p2p_optimize_listen_chan=%d\n",
1246                         config->p2p_optimize_listen_chan);
1247         if (config->p2p_go_ht40)
1248                 fprintf(f, "p2p_go_ht40=%d\n", config->p2p_go_ht40);
1249         if (config->p2p_go_vht)
1250                 fprintf(f, "p2p_go_vht=%d\n", config->p2p_go_vht);
1251         if (config->p2p_go_ctwindow != DEFAULT_P2P_GO_CTWINDOW)
1252                 fprintf(f, "p2p_go_ctwindow=%d\n", config->p2p_go_ctwindow);
1253         if (config->p2p_disabled)
1254                 fprintf(f, "p2p_disabled=%d\n", config->p2p_disabled);
1255         if (config->p2p_no_group_iface)
1256                 fprintf(f, "p2p_no_group_iface=%d\n",
1257                         config->p2p_no_group_iface);
1258         if (config->p2p_ignore_shared_freq)
1259                 fprintf(f, "p2p_ignore_shared_freq=%d\n",
1260                         config->p2p_ignore_shared_freq);
1261         if (config->p2p_cli_probe)
1262                 fprintf(f, "p2p_cli_probe=%d\n", config->p2p_cli_probe);
1263         if (config->p2p_go_freq_change_policy != DEFAULT_P2P_GO_FREQ_MOVE)
1264                 fprintf(f, "p2p_go_freq_change_policy=%u\n",
1265                         config->p2p_go_freq_change_policy);
1266         if (WPA_GET_BE32(config->ip_addr_go))
1267                 fprintf(f, "ip_addr_go=%u.%u.%u.%u\n",
1268                         config->ip_addr_go[0], config->ip_addr_go[1],
1269                         config->ip_addr_go[2], config->ip_addr_go[3]);
1270         if (WPA_GET_BE32(config->ip_addr_mask))
1271                 fprintf(f, "ip_addr_mask=%u.%u.%u.%u\n",
1272                         config->ip_addr_mask[0], config->ip_addr_mask[1],
1273                         config->ip_addr_mask[2], config->ip_addr_mask[3]);
1274         if (WPA_GET_BE32(config->ip_addr_start))
1275                 fprintf(f, "ip_addr_start=%u.%u.%u.%u\n",
1276                         config->ip_addr_start[0], config->ip_addr_start[1],
1277                         config->ip_addr_start[2], config->ip_addr_start[3]);
1278         if (WPA_GET_BE32(config->ip_addr_end))
1279                 fprintf(f, "ip_addr_end=%u.%u.%u.%u\n",
1280                         config->ip_addr_end[0], config->ip_addr_end[1],
1281                         config->ip_addr_end[2], config->ip_addr_end[3]);
1282 #endif /* CONFIG_P2P */
1283         if (config->country[0] && config->country[1]) {
1284                 fprintf(f, "country=%c%c\n",
1285                         config->country[0], config->country[1]);
1286         }
1287         if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1288                 fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1289         if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1290                 fprintf(f, "bss_expiration_age=%u\n",
1291                         config->bss_expiration_age);
1292         if (config->bss_expiration_scan_count !=
1293             DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1294                 fprintf(f, "bss_expiration_scan_count=%u\n",
1295                         config->bss_expiration_scan_count);
1296         if (config->filter_ssids)
1297                 fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1298         if (config->filter_rssi)
1299                 fprintf(f, "filter_rssi=%d\n", config->filter_rssi);
1300         if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1301                 fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1302         if (config->ap_isolate != DEFAULT_AP_ISOLATE)
1303                 fprintf(f, "ap_isolate=%u\n", config->ap_isolate);
1304         if (config->disassoc_low_ack)
1305                 fprintf(f, "disassoc_low_ack=%d\n", config->disassoc_low_ack);
1306 #ifdef CONFIG_HS20
1307         if (config->hs20)
1308                 fprintf(f, "hs20=1\n");
1309 #endif /* CONFIG_HS20 */
1310 #ifdef CONFIG_INTERWORKING
1311         if (config->interworking)
1312                 fprintf(f, "interworking=%d\n", config->interworking);
1313         if (!is_zero_ether_addr(config->hessid))
1314                 fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1315         if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1316                 fprintf(f, "access_network_type=%d\n",
1317                         config->access_network_type);
1318         if (config->go_interworking)
1319                 fprintf(f, "go_interworking=%d\n", config->go_interworking);
1320         if (config->go_access_network_type)
1321                 fprintf(f, "go_access_network_type=%d\n",
1322                         config->go_access_network_type);
1323         if (config->go_internet)
1324                 fprintf(f, "go_internet=%d\n", config->go_internet);
1325         if (config->go_venue_group)
1326                 fprintf(f, "go_venue_group=%d\n", config->go_venue_group);
1327         if (config->go_venue_type)
1328                 fprintf(f, "go_venue_type=%d\n", config->go_venue_type);
1329 #endif /* CONFIG_INTERWORKING */
1330         if (config->pbc_in_m1)
1331                 fprintf(f, "pbc_in_m1=%d\n", config->pbc_in_m1);
1332         if (config->wps_nfc_pw_from_config) {
1333                 if (config->wps_nfc_dev_pw_id)
1334                         fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1335                                 config->wps_nfc_dev_pw_id);
1336                 write_global_bin(f, "wps_nfc_dh_pubkey",
1337                                  config->wps_nfc_dh_pubkey);
1338                 write_global_bin(f, "wps_nfc_dh_privkey",
1339                                  config->wps_nfc_dh_privkey);
1340                 write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1341         }
1342
1343         if (config->ext_password_backend)
1344                 fprintf(f, "ext_password_backend=%s\n",
1345                         config->ext_password_backend);
1346         if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1347                 fprintf(f, "p2p_go_max_inactivity=%d\n",
1348                         config->p2p_go_max_inactivity);
1349         if (config->auto_interworking)
1350                 fprintf(f, "auto_interworking=%d\n",
1351                         config->auto_interworking);
1352         if (config->okc)
1353                 fprintf(f, "okc=%d\n", config->okc);
1354         if (config->pmf)
1355                 fprintf(f, "pmf=%d\n", config->pmf);
1356         if (config->dtim_period)
1357                 fprintf(f, "dtim_period=%d\n", config->dtim_period);
1358         if (config->beacon_int)
1359                 fprintf(f, "beacon_int=%d\n", config->beacon_int);
1360
1361         if (config->sae_groups) {
1362                 int i;
1363                 fprintf(f, "sae_groups=");
1364                 for (i = 0; config->sae_groups[i] > 0; i++) {
1365                         fprintf(f, "%s%d", i > 0 ? " " : "",
1366                                 config->sae_groups[i]);
1367                 }
1368                 fprintf(f, "\n");
1369         }
1370
1371         if (config->ap_vendor_elements) {
1372                 int i, len = wpabuf_len(config->ap_vendor_elements);
1373                 const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1374                 if (len > 0) {
1375                         fprintf(f, "ap_vendor_elements=");
1376                         for (i = 0; i < len; i++)
1377                                 fprintf(f, "%02x", *p++);
1378                         fprintf(f, "\n");
1379                 }
1380         }
1381
1382         if (config->ignore_old_scan_res)
1383                 fprintf(f, "ignore_old_scan_res=%d\n",
1384                         config->ignore_old_scan_res);
1385
1386         if (config->freq_list && config->freq_list[0]) {
1387                 int i;
1388                 fprintf(f, "freq_list=");
1389                 for (i = 0; config->freq_list[i]; i++) {
1390                         fprintf(f, "%s%d", i > 0 ? " " : "",
1391                                 config->freq_list[i]);
1392                 }
1393                 fprintf(f, "\n");
1394         }
1395         if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1396                 fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1397
1398         if (config->sched_scan_interval)
1399                 fprintf(f, "sched_scan_interval=%u\n",
1400                         config->sched_scan_interval);
1401
1402         if (config->sched_scan_start_delay)
1403                 fprintf(f, "sched_scan_start_delay=%u\n",
1404                         config->sched_scan_start_delay);
1405
1406         if (config->external_sim)
1407                 fprintf(f, "external_sim=%d\n", config->external_sim);
1408
1409         if (config->tdls_external_control)
1410                 fprintf(f, "tdls_external_control=%d\n",
1411                         config->tdls_external_control);
1412
1413         if (config->wowlan_triggers)
1414                 fprintf(f, "wowlan_triggers=%s\n",
1415                         config->wowlan_triggers);
1416
1417         if (config->bgscan)
1418                 fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1419
1420         if (config->autoscan)
1421                 fprintf(f, "autoscan=%s\n", config->autoscan);
1422
1423         if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1424                 fprintf(f, "p2p_search_delay=%u\n",
1425                         config->p2p_search_delay);
1426
1427         if (config->mac_addr)
1428                 fprintf(f, "mac_addr=%d\n", config->mac_addr);
1429
1430         if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1431                 fprintf(f, "rand_addr_lifetime=%u\n",
1432                         config->rand_addr_lifetime);
1433
1434         if (config->preassoc_mac_addr)
1435                 fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1436
1437         if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1438                 fprintf(f, "key_mgmt_offload=%d\n", config->key_mgmt_offload);
1439
1440         if (config->user_mpm != DEFAULT_USER_MPM)
1441                 fprintf(f, "user_mpm=%d\n", config->user_mpm);
1442
1443         if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1444                 fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1445
1446         if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1447                 fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1448
1449         if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1450                 fprintf(f, "mesh_max_inactivity=%d\n",
1451                         config->mesh_max_inactivity);
1452
1453         if (config->dot11RSNASAERetransPeriod !=
1454             DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD)
1455                 fprintf(f, "dot11RSNASAERetransPeriod=%d\n",
1456                         config->dot11RSNASAERetransPeriod);
1457
1458         if (config->passive_scan)
1459                 fprintf(f, "passive_scan=%d\n", config->passive_scan);
1460
1461         if (config->reassoc_same_bss_optim)
1462                 fprintf(f, "reassoc_same_bss_optim=%d\n",
1463                         config->reassoc_same_bss_optim);
1464
1465         if (config->wps_priority)
1466                 fprintf(f, "wps_priority=%d\n", config->wps_priority);
1467
1468         if (config->wpa_rsc_relaxation != DEFAULT_WPA_RSC_RELAXATION)
1469                 fprintf(f, "wpa_rsc_relaxation=%d\n",
1470                         config->wpa_rsc_relaxation);
1471
1472         if (config->sched_scan_plans)
1473                 fprintf(f, "sched_scan_plans=%s\n", config->sched_scan_plans);
1474
1475 #ifdef CONFIG_MBO
1476         if (config->non_pref_chan)
1477                 fprintf(f, "non_pref_chan=%s\n", config->non_pref_chan);
1478         if (config->mbo_cell_capa != DEFAULT_MBO_CELL_CAPA)
1479                 fprintf(f, "mbo_cell_capa=%u\n", config->mbo_cell_capa);
1480         if (config->disassoc_imminent_rssi_threshold !=
1481             DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD)
1482                 fprintf(f, "disassoc_imminent_rssi_threshold=%d\n",
1483                         config->disassoc_imminent_rssi_threshold);
1484         if (config->oce != DEFAULT_OCE_SUPPORT)
1485                 fprintf(f, "oce=%u\n", config->oce);
1486 #endif /* CONFIG_MBO */
1487
1488         if (config->gas_address3)
1489                 fprintf(f, "gas_address3=%d\n", config->gas_address3);
1490
1491         if (config->ftm_responder)
1492                 fprintf(f, "ftm_responder=%d\n", config->ftm_responder);
1493         if (config->ftm_initiator)
1494                 fprintf(f, "ftm_initiator=%d\n", config->ftm_initiator);
1495
1496         if (config->osu_dir)
1497                 fprintf(f, "osu_dir=%s\n", config->osu_dir);
1498
1499         if (config->fst_group_id)
1500                 fprintf(f, "fst_group_id=%s\n", config->fst_group_id);
1501         if (config->fst_priority)
1502                 fprintf(f, "fst_priority=%d\n", config->fst_priority);
1503         if (config->fst_llt)
1504                 fprintf(f, "fst_llt=%d\n", config->fst_llt);
1505
1506         if (config->gas_rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1507                 fprintf(f, "gas_rand_addr_lifetime=%u\n",
1508                         config->gas_rand_addr_lifetime);
1509         if (config->gas_rand_mac_addr)
1510                 fprintf(f, "gas_rand_mac_addr=%d\n", config->gas_rand_mac_addr);
1511         if (config->dpp_config_processing)
1512                 fprintf(f, "dpp_config_processing=%d\n",
1513                         config->dpp_config_processing);
1514         if (config->coloc_intf_reporting)
1515                 fprintf(f, "coloc_intf_reporting=%d\n",
1516                         config->coloc_intf_reporting);
1517 }
1518
1519 #endif /* CONFIG_NO_CONFIG_WRITE */
1520
1521
1522 int wpa_config_write(const char *name, struct wpa_config *config)
1523 {
1524 #ifndef CONFIG_NO_CONFIG_WRITE
1525         FILE *f;
1526         struct wpa_ssid *ssid;
1527         struct wpa_cred *cred;
1528 #ifndef CONFIG_NO_CONFIG_BLOBS
1529         struct wpa_config_blob *blob;
1530 #endif /* CONFIG_NO_CONFIG_BLOBS */
1531         int ret = 0;
1532         const char *orig_name = name;
1533         int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1534         char *tmp_name = os_malloc(tmp_len);
1535
1536         if (tmp_name) {
1537                 os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1538                 name = tmp_name;
1539         }
1540
1541         wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1542
1543         f = fopen(name, "w");
1544         if (f == NULL) {
1545                 wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1546                 os_free(tmp_name);
1547                 return -1;
1548         }
1549
1550         wpa_config_write_global(f, config);
1551
1552         for (cred = config->cred; cred; cred = cred->next) {
1553                 if (cred->temporary)
1554                         continue;
1555                 fprintf(f, "\ncred={\n");
1556                 wpa_config_write_cred(f, cred);
1557                 fprintf(f, "}\n");
1558         }
1559
1560         for (ssid = config->ssid; ssid; ssid = ssid->next) {
1561                 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1562                         continue; /* do not save temporary networks */
1563                 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1564                     !ssid->passphrase)
1565                         continue; /* do not save invalid network */
1566                 fprintf(f, "\nnetwork={\n");
1567                 wpa_config_write_network(f, ssid);
1568                 fprintf(f, "}\n");
1569         }
1570
1571 #ifndef CONFIG_NO_CONFIG_BLOBS
1572         for (blob = config->blobs; blob; blob = blob->next) {
1573                 ret = wpa_config_write_blob(f, blob);
1574                 if (ret)
1575                         break;
1576         }
1577 #endif /* CONFIG_NO_CONFIG_BLOBS */
1578
1579         os_fdatasync(f);
1580
1581         fclose(f);
1582
1583         if (tmp_name) {
1584                 int chmod_ret = 0;
1585
1586 #ifdef ANDROID
1587                 chmod_ret = chmod(tmp_name,
1588                                   S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1589 #endif /* ANDROID */
1590                 if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1591                         ret = -1;
1592
1593                 os_free(tmp_name);
1594         }
1595
1596         wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1597                    orig_name, ret ? "un" : "");
1598         return ret;
1599 #else /* CONFIG_NO_CONFIG_WRITE */
1600         return -1;
1601 #endif /* CONFIG_NO_CONFIG_WRITE */
1602 }