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