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;
 505
 506         if (ssid->mem_only_psk)
 507                 return;
 508
 509         value = wpa_config_get(ssid, "psk");
 510         if (value == NULL)
 511                 return;
 512         fprintf(f, "\tpsk=%s\n", value);
 513         os_free(value);
 514 }
 515
 516
 517 static void write_proto(FILE *f, struct wpa_ssid *ssid)
 518 {
 519         char *value;
 520
 521         if (ssid->proto == DEFAULT_PROTO)
 522                 return;
 523
 524         value = wpa_config_get(ssid, "proto");
 525         if (value == NULL)
 526                 return;
 527         if (value[0])
 528                 fprintf(f, "\tproto=%s\n", value);
 529         os_free(value);
 530 }
 531
 532
 533 static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
 534 {
 535         char *value;
 536
 537         if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
 538                 return;
 539
 540         value = wpa_config_get(ssid, "key_mgmt");
 541         if (value == NULL)
 542                 return;
 543         if (value[0])
 544                 fprintf(f, "\tkey_mgmt=%s\n", value);
 545         os_free(value);
 546 }
 547
 548
 549 static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
 550 {
 551         char *value;
 552
 553         if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
 554                 return;
 555
 556         value = wpa_config_get(ssid, "pairwise");
 557         if (value == NULL)
 558                 return;
 559         if (value[0])
 560                 fprintf(f, "\tpairwise=%s\n", value);
 561         os_free(value);
 562 }
 563
 564
 565 static void write_group(FILE *f, struct wpa_ssid *ssid)
 566 {
 567         char *value;
 568
 569         if (ssid->group_cipher == DEFAULT_GROUP)
 570                 return;
 571
 572         value = wpa_config_get(ssid, "group");
 573         if (value == NULL)
 574                 return;
 575         if (value[0])
 576                 fprintf(f, "\tgroup=%s\n", value);
 577         os_free(value);
 578 }
 579
 580
 581 static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
 582 {
 583         char *value;
 584
 585         if (ssid->auth_alg == 0)
 586                 return;
 587
 588         value = wpa_config_get(ssid, "auth_alg");
 589         if (value == NULL)
 590                 return;
 591         if (value[0])
 592                 fprintf(f, "\tauth_alg=%s\n", value);
 593         os_free(value);
 594 }
 595
 596
 597 #ifdef IEEE8021X_EAPOL
 598 static void write_eap(FILE *f, struct wpa_ssid *ssid)
 599 {
 600         char *value;
 601
 602         value = wpa_config_get(ssid, "eap");
 603         if (value == NULL)
 604                 return;
 605
 606         if (value[0])
 607                 fprintf(f, "\teap=%s\n", value);
 608         os_free(value);
 609 }
 610 #endif /* IEEE8021X_EAPOL */
 611
 612
 613 static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
 614 {
 615         char field[20], *value;
 616         int res;
 617
 618         res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
 619         if (os_snprintf_error(sizeof(field), res))
 620                 return;
 621         value = wpa_config_get(ssid, field);
 622         if (value) {
 623                 fprintf(f, "\t%s=%s\n", field, value);
 624                 os_free(value);
 625         }
 626 }
 627
 628
 629 #ifdef CONFIG_P2P
 630
 631 static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
 632 {
 633         char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
 634         if (value == NULL)
 635                 return;
 636         fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
 637         os_free(value);
 638 }
 639
 640 static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
 641 {
 642         char *value = wpa_config_get(ssid, "p2p_client_list");
 643         if (value == NULL)
 644                 return;
 645         fprintf(f, "\tp2p_client_list=%s\n", value);
 646         os_free(value);
 647 }
 648
 649
 650 static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
 651 {
 652         struct psk_list_entry *psk;
 653         char hex[32 * 2 + 1];
 654
 655         dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
 656                 wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
 657                 fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
 658                         psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
 659         }
 660 }
 661
 662 #endif /* CONFIG_P2P */
 663
 664
 665 static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
 666 {
 667         int i;
 668
 669 #define STR(t) write_str(f, #t, ssid)
 670 #define INT(t) write_int(f, #t, ssid->t, 0)
 671 #define INTe(t) write_int(f, #t, ssid->eap.t, 0)
 672 #define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
 673 #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
 674
 675         STR(ssid);
 676         INT(scan_ssid);
 677         write_bssid(f, ssid);
 678         write_str(f, "bssid_blacklist", ssid);
 679         write_str(f, "bssid_whitelist", ssid);
 680         write_psk(f, ssid);
 681         INT(mem_only_psk);
 682         write_proto(f, ssid);
 683         write_key_mgmt(f, ssid);
 684         INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
 685         write_pairwise(f, ssid);
 686         write_group(f, ssid);
 687         write_auth_alg(f, ssid);
 688         STR(bgscan);
 689         STR(autoscan);
 690         STR(scan_freq);
 691 #ifdef IEEE8021X_EAPOL
 692         write_eap(f, ssid);
 693         STR(identity);
 694         STR(anonymous_identity);
 695         STR(password);
 696         STR(ca_cert);
 697         STR(ca_path);
 698         STR(client_cert);
 699         STR(private_key);
 700         STR(private_key_passwd);
 701         STR(dh_file);
 702         STR(subject_match);
 703         STR(altsubject_match);
 704         STR(domain_suffix_match);
 705         STR(domain_match);
 706         STR(ca_cert2);
 707         STR(ca_path2);
 708         STR(client_cert2);
 709         STR(private_key2);
 710         STR(private_key2_passwd);
 711         STR(dh_file2);
 712         STR(subject_match2);
 713         STR(altsubject_match2);
 714         STR(domain_suffix_match2);
 715         STR(domain_match2);
 716         STR(phase1);
 717         STR(phase2);
 718         STR(pcsc);
 719         STR(pin);
 720         STR(engine_id);
 721         STR(key_id);
 722         STR(cert_id);
 723         STR(ca_cert_id);
 724         STR(key2_id);
 725         STR(pin2);
 726         STR(engine2_id);
 727         STR(cert2_id);
 728         STR(ca_cert2_id);
 729         INTe(engine);
 730         INTe(engine2);
 731         INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
 732         STR(openssl_ciphers);
 733         INTe(erp);
 734 #endif /* IEEE8021X_EAPOL */
 735         for (i = 0; i < 4; i++)
 736                 write_wep_key(f, i, ssid);
 737         INT(wep_tx_keyidx);
 738         INT(priority);
 739 #ifdef IEEE8021X_EAPOL
 740         INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
 741         STR(pac_file);
 742         INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
 743         INTe(ocsp);
 744         INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
 745 #endif /* IEEE8021X_EAPOL */
 746         INT(mode);
 747         INT(no_auto_peer);
 748         INT(frequency);
 749         INT(fixed_freq);
 750         write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
 751         INT(disabled);
 752         INT(peerkey);
 753         INT(mixed_cell);
 754 #ifdef CONFIG_IEEE80211W
 755         write_int(f, "ieee80211w", ssid->ieee80211w,
 756                   MGMT_FRAME_PROTECTION_DEFAULT);
 757 #endif /* CONFIG_IEEE80211W */
 758         STR(id_str);
 759 #ifdef CONFIG_P2P
 760         write_go_p2p_dev_addr(f, ssid);
 761         write_p2p_client_list(f, ssid);
 762         write_psk_list(f, ssid);
 763 #endif /* CONFIG_P2P */
 764         INT(ap_max_inactivity);
 765         INT(dtim_period);
 766         INT(beacon_int);
 767 #ifdef CONFIG_MACSEC
 768         INT(macsec_policy);
 769 #endif /* CONFIG_MACSEC */
 770 #ifdef CONFIG_HS20
 771         INT(update_identifier);
 772 #endif /* CONFIG_HS20 */
 773         write_int(f, "mac_addr", ssid->mac_addr, -1);
 774 #ifdef CONFIG_MESH
 775         STR(mesh_basic_rates);
 776         INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
 777         INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
 778         INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
 779         INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
 780 #endif /* CONFIG_MESH */
 781         INT(wpa_ptk_rekey);
 782         INT(ignore_broadcast_ssid);
 783 #ifdef CONFIG_HT_OVERRIDES
 784         INT_DEF(disable_ht, DEFAULT_DISABLE_HT);
 785         INT_DEF(disable_ht40, DEFAULT_DISABLE_HT40);
 786         INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
 787         INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
 788         INT(ht40_intolerant);
 789         INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
 790         INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
 791         INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);
 792         STR(ht_mcs);
 793 #endif /* CONFIG_HT_OVERRIDES */
 794 #ifdef CONFIG_VHT_OVERRIDES
 795         INT(disable_vht);
 796         INT(vht_capa);
 797         INT(vht_capa_mask);
 798         INT_DEF(vht_rx_mcs_nss_1, -1);
 799         INT_DEF(vht_rx_mcs_nss_2, -1);
 800         INT_DEF(vht_rx_mcs_nss_3, -1);
 801         INT_DEF(vht_rx_mcs_nss_4, -1);
 802         INT_DEF(vht_rx_mcs_nss_5, -1);
 803         INT_DEF(vht_rx_mcs_nss_6, -1);
 804         INT_DEF(vht_rx_mcs_nss_7, -1);
 805         INT_DEF(vht_rx_mcs_nss_8, -1);
 806         INT_DEF(vht_tx_mcs_nss_1, -1);
 807         INT_DEF(vht_tx_mcs_nss_2, -1);
 808         INT_DEF(vht_tx_mcs_nss_3, -1);
 809         INT_DEF(vht_tx_mcs_nss_4, -1);
 810         INT_DEF(vht_tx_mcs_nss_5, -1);
 811         INT_DEF(vht_tx_mcs_nss_6, -1);
 812         INT_DEF(vht_tx_mcs_nss_7, -1);
 813         INT_DEF(vht_tx_mcs_nss_8, -1);
 814 #endif /* CONFIG_VHT_OVERRIDES */
 815
 816 #undef STR
 817 #undef INT
 818 #undef INT_DEF
 819 }
 820
 821
 822 static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
 823 {
 824         size_t i;
 825
 826         if (cred->priority)
 827                 fprintf(f, "\tpriority=%d\n", cred->priority);
 828         if (cred->pcsc)
 829                 fprintf(f, "\tpcsc=%d\n", cred->pcsc);
 830         if (cred->realm)
 831                 fprintf(f, "\trealm=\"%s\"\n", cred->realm);
 832         if (cred->username)
 833                 fprintf(f, "\tusername=\"%s\"\n", cred->username);
 834         if (cred->password && cred->ext_password)
 835                 fprintf(f, "\tpassword=ext:%s\n", cred->password);
 836         else if (cred->password)
 837                 fprintf(f, "\tpassword=\"%s\"\n", cred->password);
 838         if (cred->ca_cert)
 839                 fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
 840         if (cred->client_cert)
 841                 fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
 842         if (cred->private_key)
 843                 fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
 844         if (cred->private_key_passwd)
 845                 fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
 846                         cred->private_key_passwd);
 847         if (cred->imsi)
 848                 fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
 849         if (cred->milenage)
 850                 fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
 851         for (i = 0; i < cred->num_domain; i++)
 852                 fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
 853         if (cred->domain_suffix_match)
 854                 fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
 855                         cred->domain_suffix_match);
 856         if (cred->roaming_consortium_len) {
 857                 fprintf(f, "\troaming_consortium=");
 858                 for (i = 0; i < cred->roaming_consortium_len; i++)
 859                         fprintf(f, "%02x", cred->roaming_consortium[i]);
 860                 fprintf(f, "\n");
 861         }
 862         if (cred->eap_method) {
 863                 const char *name;
 864                 name = eap_get_name(cred->eap_method[0].vendor,
 865                                     cred->eap_method[0].method);
 866                 if (name)
 867                         fprintf(f, "\teap=%s\n", name);
 868         }
 869         if (cred->phase1)
 870                 fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
 871         if (cred->phase2)
 872                 fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
 873         if (cred->excluded_ssid) {
 874                 size_t j;
 875                 for (i = 0; i < cred->num_excluded_ssid; i++) {
 876                         struct excluded_ssid *e = &cred->excluded_ssid[i];
 877                         fprintf(f, "\texcluded_ssid=");
 878                         for (j = 0; j < e->ssid_len; j++)
 879                                 fprintf(f, "%02x", e->ssid[j]);
 880                         fprintf(f, "\n");
 881                 }
 882         }
 883         if (cred->roaming_partner) {
 884                 for (i = 0; i < cred->num_roaming_partner; i++) {
 885                         struct roaming_partner *p = &cred->roaming_partner[i];
 886                         fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
 887                                 p->fqdn, p->exact_match, p->priority,
 888                                 p->country);
 889                 }
 890         }
 891         if (cred->update_identifier)
 892                 fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
 893
 894         if (cred->provisioning_sp)
 895                 fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
 896         if (cred->sp_priority)
 897                 fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
 898
 899         if (cred->min_dl_bandwidth_home)
 900                 fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
 901                         cred->min_dl_bandwidth_home);
 902         if (cred->min_ul_bandwidth_home)
 903                 fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
 904                         cred->min_ul_bandwidth_home);
 905         if (cred->min_dl_bandwidth_roaming)
 906                 fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
 907                         cred->min_dl_bandwidth_roaming);
 908         if (cred->min_ul_bandwidth_roaming)
 909                 fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
 910                         cred->min_ul_bandwidth_roaming);
 911
 912         if (cred->max_bss_load)
 913                 fprintf(f, "\tmax_bss_load=%u\n",
 914                         cred->max_bss_load);
 915
 916         if (cred->ocsp)
 917                 fprintf(f, "\tocsp=%d\n", cred->ocsp);
 918
 919         if (cred->num_req_conn_capab) {
 920                 for (i = 0; i < cred->num_req_conn_capab; i++) {
 921                         int *ports;
 922
 923                         fprintf(f, "\treq_conn_capab=%u",
 924                                 cred->req_conn_capab_proto[i]);
 925                         ports = cred->req_conn_capab_port[i];
 926                         if (ports) {
 927                                 int j;
 928                                 for (j = 0; ports[j] != -1; j++) {
 929                                         fprintf(f, "%s%d", j > 0 ? "," : ":",
 930                                                 ports[j]);
 931                                 }
 932                         }
 933                         fprintf(f, "\n");
 934                 }
 935         }
 936
 937         if (cred->required_roaming_consortium_len) {
 938                 fprintf(f, "\trequired_roaming_consortium=");
 939                 for (i = 0; i < cred->required_roaming_consortium_len; i++)
 940                         fprintf(f, "%02x",
 941                                 cred->required_roaming_consortium[i]);
 942                 fprintf(f, "\n");
 943         }
 944
 945         if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
 946                 fprintf(f, "\tsim_num=%d\n", cred->sim_num);
 947 }
 948
 949
 950 #ifndef CONFIG_NO_CONFIG_BLOBS
 951 static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
 952 {
 953         unsigned char *encoded;
 954
 955         encoded = base64_encode(blob->data, blob->len, NULL);
 956         if (encoded == NULL)
 957                 return -1;
 958
 959         fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
 960         os_free(encoded);
 961         return 0;
 962 }
 963 #endif /* CONFIG_NO_CONFIG_BLOBS */
 964
 965
 966 static void write_global_bin(FILE *f, const char *field,
 967                              const struct wpabuf *val)
 968 {
 969         size_t i;
 970         const u8 *pos;
 971
 972         if (val == NULL)
 973                 return;
 974
 975         fprintf(f, "%s=", field);
 976         pos = wpabuf_head(val);
 977         for (i = 0; i < wpabuf_len(val); i++)
 978                 fprintf(f, "%02X", *pos++);
 979         fprintf(f, "\n");
 980 }
 981
 982
 983 static void wpa_config_write_global(FILE *f, struct wpa_config *config)
 984 {
 985 #ifdef CONFIG_CTRL_IFACE
 986         if (config->ctrl_interface)
 987                 fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
 988         if (config->ctrl_interface_group)
 989                 fprintf(f, "ctrl_interface_group=%s\n",
 990                         config->ctrl_interface_group);
 991 #endif /* CONFIG_CTRL_IFACE */
 992         if (config->eapol_version != DEFAULT_EAPOL_VERSION)
 993                 fprintf(f, "eapol_version=%d\n", config->eapol_version);
 994         if (config->ap_scan != DEFAULT_AP_SCAN)
 995                 fprintf(f, "ap_scan=%d\n", config->ap_scan);
 996         if (config->disable_scan_offload)
 997                 fprintf(f, "disable_scan_offload=%d\n",
 998                         config->disable_scan_offload);
 999         if (config->fast_reauth != DEFAULT_FAST_REAUTH)
1000                 fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
1001         if (config->opensc_engine_path)
1002                 fprintf(f, "opensc_engine_path=%s\n",
1003                         config->opensc_engine_path);
1004         if (config->pkcs11_engine_path)
1005                 fprintf(f, "pkcs11_engine_path=%s\n",
1006                         config->pkcs11_engine_path);
1007         if (config->pkcs11_module_path)
1008                 fprintf(f, "pkcs11_module_path=%s\n",
1009                         config->pkcs11_module_path);
1010         if (config->openssl_ciphers)
1011                 fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
1012         if (config->pcsc_reader)
1013                 fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
1014         if (config->pcsc_pin)
1015                 fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
1016         if (config->driver_param)
1017                 fprintf(f, "driver_param=%s\n", config->driver_param);
1018         if (config->dot11RSNAConfigPMKLifetime)
1019                 fprintf(f, "dot11RSNAConfigPMKLifetime=%u\n",
1020                         config->dot11RSNAConfigPMKLifetime);
1021         if (config->dot11RSNAConfigPMKReauthThreshold)
1022                 fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%u\n",
1023                         config->dot11RSNAConfigPMKReauthThreshold);
1024         if (config->dot11RSNAConfigSATimeout)
1025                 fprintf(f, "dot11RSNAConfigSATimeout=%u\n",
1026                         config->dot11RSNAConfigSATimeout);
1027         if (config->update_config)
1028                 fprintf(f, "update_config=%d\n", config->update_config);
1029 #ifdef CONFIG_WPS
1030         if (!is_nil_uuid(config->uuid)) {
1031                 char buf[40];
1032                 uuid_bin2str(config->uuid, buf, sizeof(buf));
1033                 fprintf(f, "uuid=%s\n", buf);
1034         }
1035         if (config->device_name)
1036                 fprintf(f, "device_name=%s\n", config->device_name);
1037         if (config->manufacturer)
1038                 fprintf(f, "manufacturer=%s\n", config->manufacturer);
1039         if (config->model_name)
1040                 fprintf(f, "model_name=%s\n", config->model_name);
1041         if (config->model_number)
1042                 fprintf(f, "model_number=%s\n", config->model_number);
1043         if (config->serial_number)
1044                 fprintf(f, "serial_number=%s\n", config->serial_number);
1045         {
1046                 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1047                 buf = wps_dev_type_bin2str(config->device_type,
1048                                            _buf, sizeof(_buf));
1049                 if (os_strcmp(buf, "0-00000000-0") != 0)
1050                         fprintf(f, "device_type=%s\n", buf);
1051         }
1052         if (WPA_GET_BE32(config->os_version))
1053                 fprintf(f, "os_version=%08x\n",
1054                         WPA_GET_BE32(config->os_version));
1055         if (config->config_methods)
1056                 fprintf(f, "config_methods=%s\n", config->config_methods);
1057         if (config->wps_cred_processing)
1058                 fprintf(f, "wps_cred_processing=%d\n",
1059                         config->wps_cred_processing);
1060         if (config->wps_vendor_ext_m1) {
1061                 int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1062                 const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1063                 if (len > 0) {
1064                         fprintf(f, "wps_vendor_ext_m1=");
1065                         for (i = 0; i < len; i++)
1066                                 fprintf(f, "%02x", *p++);
1067                         fprintf(f, "\n");
1068                 }
1069         }
1070 #endif /* CONFIG_WPS */
1071 #ifdef CONFIG_P2P
1072         if (config->p2p_listen_reg_class)
1073                 fprintf(f, "p2p_listen_reg_class=%d\n",
1074                         config->p2p_listen_reg_class);
1075         if (config->p2p_listen_channel)
1076                 fprintf(f, "p2p_listen_channel=%d\n",
1077                         config->p2p_listen_channel);
1078         if (config->p2p_oper_reg_class)
1079                 fprintf(f, "p2p_oper_reg_class=%d\n",
1080                         config->p2p_oper_reg_class);
1081         if (config->p2p_oper_channel)
1082                 fprintf(f, "p2p_oper_channel=%d\n", config->p2p_oper_channel);
1083         if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1084                 fprintf(f, "p2p_go_intent=%d\n", config->p2p_go_intent);
1085         if (config->p2p_ssid_postfix)
1086                 fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1087         if (config->persistent_reconnect)
1088                 fprintf(f, "persistent_reconnect=%d\n",
1089                         config->persistent_reconnect);
1090         if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1091                 fprintf(f, "p2p_intra_bss=%d\n", config->p2p_intra_bss);
1092         if (config->p2p_group_idle)
1093                 fprintf(f, "p2p_group_idle=%d\n", config->p2p_group_idle);
1094         if (config->p2p_passphrase_len)
1095                 fprintf(f, "p2p_passphrase_len=%u\n",
1096                         config->p2p_passphrase_len);
1097         if (config->p2p_pref_chan) {
1098                 unsigned int i;
1099                 fprintf(f, "p2p_pref_chan=");
1100                 for (i = 0; i < config->num_p2p_pref_chan; i++) {
1101                         fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1102                                 config->p2p_pref_chan[i].op_class,
1103                                 config->p2p_pref_chan[i].chan);
1104                 }
1105                 fprintf(f, "\n");
1106         }
1107         if (config->p2p_no_go_freq.num) {
1108                 char *val = freq_range_list_str(&config->p2p_no_go_freq);
1109                 if (val) {
1110                         fprintf(f, "p2p_no_go_freq=%s\n", val);
1111                         os_free(val);
1112                 }
1113         }
1114         if (config->p2p_add_cli_chan)
1115                 fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1116         if (config->p2p_optimize_listen_chan !=
1117             DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1118                 fprintf(f, "p2p_optimize_listen_chan=%d\n",
1119                         config->p2p_optimize_listen_chan);
1120         if (config->p2p_go_ht40)
1121                 fprintf(f, "p2p_go_ht40=%d\n", config->p2p_go_ht40);
1122         if (config->p2p_go_vht)
1123                 fprintf(f, "p2p_go_vht=%d\n", config->p2p_go_vht);
1124         if (config->p2p_go_ctwindow != DEFAULT_P2P_GO_CTWINDOW)
1125                 fprintf(f, "p2p_go_ctwindow=%d\n", config->p2p_go_ctwindow);
1126         if (config->p2p_disabled)
1127                 fprintf(f, "p2p_disabled=%d\n", config->p2p_disabled);
1128         if (config->p2p_no_group_iface)
1129                 fprintf(f, "p2p_no_group_iface=%d\n",
1130                         config->p2p_no_group_iface);
1131         if (config->p2p_ignore_shared_freq)
1132                 fprintf(f, "p2p_ignore_shared_freq=%d\n",
1133                         config->p2p_ignore_shared_freq);
1134         if (config->p2p_cli_probe)
1135                 fprintf(f, "p2p_cli_probe=%d\n", config->p2p_cli_probe);
1136         if (config->p2p_go_freq_change_policy != DEFAULT_P2P_GO_FREQ_MOVE)
1137                 fprintf(f, "p2p_go_freq_change_policy=%u\n",
1138                         config->p2p_go_freq_change_policy);
1139 #endif /* CONFIG_P2P */
1140         if (config->country[0] && config->country[1]) {
1141                 fprintf(f, "country=%c%c\n",
1142                         config->country[0], config->country[1]);
1143         }
1144         if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1145                 fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1146         if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1147                 fprintf(f, "bss_expiration_age=%u\n",
1148                         config->bss_expiration_age);
1149         if (config->bss_expiration_scan_count !=
1150             DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1151                 fprintf(f, "bss_expiration_scan_count=%u\n",
1152                         config->bss_expiration_scan_count);
1153         if (config->filter_ssids)
1154                 fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1155         if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1156                 fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1157         if (config->disassoc_low_ack)
1158                 fprintf(f, "disassoc_low_ack=%d\n", config->disassoc_low_ack);
1159 #ifdef CONFIG_HS20
1160         if (config->hs20)
1161                 fprintf(f, "hs20=1\n");
1162 #endif /* CONFIG_HS20 */
1163 #ifdef CONFIG_INTERWORKING
1164         if (config->interworking)
1165                 fprintf(f, "interworking=%d\n", config->interworking);
1166         if (!is_zero_ether_addr(config->hessid))
1167                 fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1168         if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1169                 fprintf(f, "access_network_type=%d\n",
1170                         config->access_network_type);
1171 #endif /* CONFIG_INTERWORKING */
1172         if (config->pbc_in_m1)
1173                 fprintf(f, "pbc_in_m1=%d\n", config->pbc_in_m1);
1174         if (config->wps_nfc_pw_from_config) {
1175                 if (config->wps_nfc_dev_pw_id)
1176                         fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1177                                 config->wps_nfc_dev_pw_id);
1178                 write_global_bin(f, "wps_nfc_dh_pubkey",
1179                                  config->wps_nfc_dh_pubkey);
1180                 write_global_bin(f, "wps_nfc_dh_privkey",
1181                                  config->wps_nfc_dh_privkey);
1182                 write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1183         }
1184
1185         if (config->ext_password_backend)
1186                 fprintf(f, "ext_password_backend=%s\n",
1187                         config->ext_password_backend);
1188         if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1189                 fprintf(f, "p2p_go_max_inactivity=%d\n",
1190                         config->p2p_go_max_inactivity);
1191         if (config->auto_interworking)
1192                 fprintf(f, "auto_interworking=%d\n",
1193                         config->auto_interworking);
1194         if (config->okc)
1195                 fprintf(f, "okc=%d\n", config->okc);
1196         if (config->pmf)
1197                 fprintf(f, "pmf=%d\n", config->pmf);
1198         if (config->dtim_period)
1199                 fprintf(f, "dtim_period=%d\n", config->dtim_period);
1200         if (config->beacon_int)
1201                 fprintf(f, "beacon_int=%d\n", config->beacon_int);
1202
1203         if (config->sae_groups) {
1204                 int i;
1205                 fprintf(f, "sae_groups=");
1206                 for (i = 0; config->sae_groups[i] >= 0; i++) {
1207                         fprintf(f, "%s%d", i > 0 ? " " : "",
1208                                 config->sae_groups[i]);
1209                 }
1210                 fprintf(f, "\n");
1211         }
1212
1213         if (config->ap_vendor_elements) {
1214                 int i, len = wpabuf_len(config->ap_vendor_elements);
1215                 const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1216                 if (len > 0) {
1217                         fprintf(f, "ap_vendor_elements=");
1218                         for (i = 0; i < len; i++)
1219                                 fprintf(f, "%02x", *p++);
1220                         fprintf(f, "\n");
1221                 }
1222         }
1223
1224         if (config->ignore_old_scan_res)
1225                 fprintf(f, "ignore_old_scan_res=%d\n",
1226                         config->ignore_old_scan_res);
1227
1228         if (config->freq_list && config->freq_list[0]) {
1229                 int i;
1230                 fprintf(f, "freq_list=");
1231                 for (i = 0; config->freq_list[i]; i++) {
1232                         fprintf(f, "%s%d", i > 0 ? " " : "",
1233                                 config->freq_list[i]);
1234                 }
1235                 fprintf(f, "\n");
1236         }
1237         if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1238                 fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1239
1240         if (config->sched_scan_interval)
1241                 fprintf(f, "sched_scan_interval=%u\n",
1242                         config->sched_scan_interval);
1243
1244         if (config->external_sim)
1245                 fprintf(f, "external_sim=%d\n", config->external_sim);
1246
1247         if (config->tdls_external_control)
1248                 fprintf(f, "tdls_external_control=%d\n",
1249                         config->tdls_external_control);
1250
1251         if (config->wowlan_triggers)
1252                 fprintf(f, "wowlan_triggers=%s\n",
1253                         config->wowlan_triggers);
1254
1255         if (config->bgscan)
1256                 fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1257
1258         if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1259                 fprintf(f, "p2p_search_delay=%u\n",
1260                         config->p2p_search_delay);
1261
1262         if (config->mac_addr)
1263                 fprintf(f, "mac_addr=%d\n", config->mac_addr);
1264
1265         if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1266                 fprintf(f, "rand_addr_lifetime=%u\n",
1267                         config->rand_addr_lifetime);
1268
1269         if (config->preassoc_mac_addr)
1270                 fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1271
1272         if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1273                 fprintf(f, "key_mgmt_offload=%d\n", config->key_mgmt_offload);
1274
1275         if (config->user_mpm != DEFAULT_USER_MPM)
1276                 fprintf(f, "user_mpm=%d\n", config->user_mpm);
1277
1278         if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1279                 fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1280
1281         if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1282                 fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1283
1284         if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1285                 fprintf(f, "mesh_max_inactivity=%d\n",
1286                         config->mesh_max_inactivity);
1287
1288         if (config->dot11RSNASAERetransPeriod !=
1289             DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD)
1290                 fprintf(f, "dot11RSNASAERetransPeriod=%d\n",
1291                         config->dot11RSNASAERetransPeriod);
1292
1293         if (config->passive_scan)
1294                 fprintf(f, "passive_scan=%d\n", config->passive_scan);
1295
1296         if (config->reassoc_same_bss_optim)
1297                 fprintf(f, "reassoc_same_bss_optim=%d\n",
1298                         config->reassoc_same_bss_optim);
1299
1300         if (config->wps_priority)
1301                 fprintf(f, "wps_priority=%d\n", config->wps_priority);
1302 }
1303
1304 #endif /* CONFIG_NO_CONFIG_WRITE */
1305
1306
1307 int wpa_config_write(const char *name, struct wpa_config *config)
1308 {
1309 #ifndef CONFIG_NO_CONFIG_WRITE
1310         FILE *f;
1311         struct wpa_ssid *ssid;
1312         struct wpa_cred *cred;
1313 #ifndef CONFIG_NO_CONFIG_BLOBS
1314         struct wpa_config_blob *blob;
1315 #endif /* CONFIG_NO_CONFIG_BLOBS */
1316         int ret = 0;
1317         const char *orig_name = name;
1318         int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1319         char *tmp_name = os_malloc(tmp_len);
1320
1321         if (tmp_name) {
1322                 os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1323                 name = tmp_name;
1324         }
1325
1326         wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1327
1328         f = fopen(name, "w");
1329         if (f == NULL) {
1330                 wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1331                 os_free(tmp_name);
1332                 return -1;
1333         }
1334
1335         wpa_config_write_global(f, config);
1336
1337         for (cred = config->cred; cred; cred = cred->next) {
1338                 if (cred->temporary)
1339                         continue;
1340                 fprintf(f, "\ncred={\n");
1341                 wpa_config_write_cred(f, cred);
1342                 fprintf(f, "}\n");
1343         }
1344
1345         for (ssid = config->ssid; ssid; ssid = ssid->next) {
1346                 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1347                         continue; /* do not save temporary networks */
1348                 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1349                     !ssid->passphrase)
1350                         continue; /* do not save invalid network */
1351                 fprintf(f, "\nnetwork={\n");
1352                 wpa_config_write_network(f, ssid);
1353                 fprintf(f, "}\n");
1354         }
1355
1356 #ifndef CONFIG_NO_CONFIG_BLOBS
1357         for (blob = config->blobs; blob; blob = blob->next) {
1358                 ret = wpa_config_write_blob(f, blob);
1359                 if (ret)
1360                         break;
1361         }
1362 #endif /* CONFIG_NO_CONFIG_BLOBS */
1363
1364         fclose(f);
1365
1366         if (tmp_name) {
1367                 int chmod_ret = 0;
1368
1369 #ifdef ANDROID
1370                 chmod_ret = chmod(tmp_name,
1371                                   S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1372 #endif /* ANDROID */
1373                 if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1374                         ret = -1;
1375
1376                 os_free(tmp_name);
1377         }
1378
1379         wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1380                    orig_name, ret ? "un" : "");
1381         return ret;
1382 #else /* CONFIG_NO_CONFIG_WRITE */
1383         return -1;
1384 #endif /* CONFIG_NO_CONFIG_WRITE */
1385 }