wpa_supplicant/config_file.c

   1 /*
   2  * WPA Supplicant / Configuration backend: text file
   3  * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
   4  *
   5  * This software may be distributed under the terms of the BSD license.
   6  * See README for more details.
   7  *
   8  * This file implements a configuration backend for text files. All the
   9  * configuration information is stored in a text file that uses a format
  10  * described in the sample configuration file, wpa_supplicant.conf.
  11  */
  12
  13 #include "includes.h"
  14 #ifdef ANDROID
  15 #include <sys/stat.h>
  16 #endif /* ANDROID */
  17
  18 #include "common.h"
  19 #include "config.h"
  20 #include "base64.h"
  21 #include "uuid.h"
  22 #include "p2p/p2p.h"
  23 #include "eap_peer/eap_methods.h"
  24 #include "eap_peer/eap.h"
  25
  26
  27 static int newline_terminated(const char *buf, size_t buflen)
  28 {
  29         size_t len = os_strlen(buf);
  30         if (len == 0)
  31                 return 0;
  32         if (len == buflen - 1 && buf[buflen - 1] != '\r' &&
  33             buf[len - 1] != '\n')
  34                 return 0;
  35         return 1;
  36 }
  37
  38
  39 static void skip_line_end(FILE *stream)
  40 {
  41         char buf[100];
  42         while (fgets(buf, sizeof(buf), stream)) {
  43                 buf[sizeof(buf) - 1] = '\0';
  44                 if (newline_terminated(buf, sizeof(buf)))
  45                         return;
  46         }
  47 }
  48
  49
  50 /**
  51  * wpa_config_get_line - Read the next configuration file line
  52  * @s: Buffer for the line
  53  * @size: The buffer length
  54  * @stream: File stream to read from
  55  * @line: Pointer to a variable storing the file line number
  56  * @_pos: Buffer for the pointer to the beginning of data on the text line or
  57  * %NULL if not needed (returned value used instead)
  58  * Returns: Pointer to the beginning of data on the text line or %NULL if no
  59  * more text lines are available.
  60  *
  61  * This function reads the next non-empty line from the configuration file and
  62  * removes comments. The returned string is guaranteed to be null-terminated.
  63  */
  64 static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
  65                                   char **_pos)
  66 {
  67         char *pos, *end, *sstart;
  68
  69         while (fgets(s, size, stream)) {
  70                 (*line)++;
  71                 s[size - 1] = '\0';
  72                 if (!newline_terminated(s, size)) {
  73                         /*
  74                          * The line was truncated - skip rest of it to avoid
  75                          * confusing error messages.
  76                          */
  77                         wpa_printf(MSG_INFO, "Long line in configuration file "
  78                                    "truncated");
  79                         skip_line_end(stream);
  80                 }
  81                 pos = s;
  82
  83                 /* Skip white space from the beginning of line. */
  84                 while (*pos == ' ' || *pos == '\t' || *pos == '\r')
  85                         pos++;
  86
  87                 /* Skip comment lines and empty lines */
  88                 if (*pos == '#' || *pos == '\n' || *pos == '\0')
  89                         continue;
  90
  91                 /*
  92                  * Remove # comments unless they are within a double quoted
  93                  * string.
  94                  */
  95                 sstart = os_strchr(pos, '"');
  96                 if (sstart)
  97                         sstart = os_strrchr(sstart + 1, '"');
  98                 if (!sstart)
  99                         sstart = pos;
 100                 end = os_strchr(sstart, '#');
 101                 if (end)
 102                         *end-- = '\0';
 103                 else
 104                         end = pos + os_strlen(pos) - 1;
 105
 106                 /* Remove trailing white space. */
 107                 while (end > pos &&
 108                        (*end == '\n' || *end == ' ' || *end == '\t' ||
 109                         *end == '\r'))
 110                         *end-- = '\0';
 111
 112                 if (*pos == '\0')
 113                         continue;
 114
 115                 if (_pos)
 116                         *_pos = pos;
 117                 return pos;
 118         }
 119
 120         if (_pos)
 121                 *_pos = NULL;
 122         return NULL;
 123 }
 124
 125
 126 static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
 127 {
 128         int errors = 0;
 129
 130         if (ssid->passphrase) {
 131                 if (ssid->psk_set) {
 132                         wpa_printf(MSG_ERROR, "Line %d: both PSK and "
 133                                    "passphrase configured.", line);
 134                         errors++;
 135                 }
 136                 wpa_config_update_psk(ssid);
 137         }
 138
 139         if ((ssid->group_cipher & WPA_CIPHER_CCMP) &&
 140             !(ssid->pairwise_cipher & WPA_CIPHER_CCMP) &&
 141             !(ssid->pairwise_cipher & WPA_CIPHER_NONE)) {
 142                 /* Group cipher cannot be stronger than the pairwise cipher. */
 143                 wpa_printf(MSG_DEBUG, "Line %d: removed CCMP from group cipher"
 144                            " list since it was not allowed for pairwise "
 145                            "cipher", line);
 146                 ssid->group_cipher &= ~WPA_CIPHER_CCMP;
 147         }
 148
 149         if (ssid->mode == WPAS_MODE_MESH &&
 150             (ssid->key_mgmt != WPA_KEY_MGMT_NONE &&
 151             ssid->key_mgmt != WPA_KEY_MGMT_SAE)) {
 152                 wpa_printf(MSG_ERROR,
 153                            "Line %d: key_mgmt for mesh network should be open or SAE",
 154                            line);
 155                 errors++;
 156         }
 157
 158         return errors;
 159 }
 160
 161
 162 static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
 163 {
 164         struct wpa_ssid *ssid;
 165         int errors = 0, end = 0;
 166         char buf[2000], *pos, *pos2;
 167
 168         wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
 169                    *line);
 170         ssid = os_zalloc(sizeof(*ssid));
 171         if (ssid == NULL)
 172                 return NULL;
 173         dl_list_init(&ssid->psk_list);
 174         ssid->id = id;
 175
 176         wpa_config_set_network_defaults(ssid);
 177
 178         while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
 179                 if (os_strcmp(pos, "}") == 0) {
 180                         end = 1;
 181                         break;
 182                 }
 183
 184                 pos2 = os_strchr(pos, '=');
 185                 if (pos2 == NULL) {
 186                         wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
 187                                    "'%s'.", *line, pos);
 188                         errors++;
 189                         continue;
 190                 }
 191
 192                 *pos2++ = '\0';
 193                 if (*pos2 == '"') {
 194                         if (os_strchr(pos2 + 1, '"') == NULL) {
 195                                 wpa_printf(MSG_ERROR, "Line %d: invalid "
 196                                            "quotation '%s'.", *line, pos2);
 197                                 errors++;
 198                                 continue;
 199                         }
 200                 }
 201
 202                 if (wpa_config_set(ssid, pos, pos2, *line) < 0)
 203                         errors++;
 204         }
 205
 206         if (!end) {
 207                 wpa_printf(MSG_ERROR, "Line %d: network block was not "
 208                            "terminated properly.", *line);
 209                 errors++;
 210         }
 211
 212         errors += wpa_config_validate_network(ssid, *line);
 213
 214         if (errors) {
 215                 wpa_config_free_ssid(ssid);
 216                 ssid = NULL;
 217         }
 218
 219         return ssid;
 220 }
 221
 222
 223 static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id)
 224 {
 225         struct wpa_cred *cred;
 226         int errors = 0, end = 0;
 227         char buf[256], *pos, *pos2;
 228
 229         wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line);
 230         cred = os_zalloc(sizeof(*cred));
 231         if (cred == NULL)
 232                 return NULL;
 233         cred->id = id;
 234         cred->sim_num = DEFAULT_USER_SELECTED_SIM;
 235
 236         while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
 237                 if (os_strcmp(pos, "}") == 0) {
 238                         end = 1;
 239                         break;
 240                 }
 241
 242                 pos2 = os_strchr(pos, '=');
 243                 if (pos2 == NULL) {
 244                         wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
 245                                    "'%s'.", *line, pos);
 246                         errors++;
 247                         continue;
 248                 }
 249
 250                 *pos2++ = '\0';
 251                 if (*pos2 == '"') {
 252                         if (os_strchr(pos2 + 1, '"') == NULL) {
 253                                 wpa_printf(MSG_ERROR, "Line %d: invalid "
 254                                            "quotation '%s'.", *line, pos2);
 255                                 errors++;
 256                                 continue;
 257                         }
 258                 }
 259
 260                 if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
 261                         errors++;
 262         }
 263
 264         if (!end) {
 265                 wpa_printf(MSG_ERROR, "Line %d: cred block was not "
 266                            "terminated properly.", *line);
 267                 errors++;
 268         }
 269
 270         if (errors) {
 271                 wpa_config_free_cred(cred);
 272                 cred = NULL;
 273         }
 274
 275         return cred;
 276 }
 277
 278
 279 #ifndef CONFIG_NO_CONFIG_BLOBS
 280 static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
 281                                                      const char *name)
 282 {
 283         struct wpa_config_blob *blob;
 284         char buf[256], *pos;
 285         unsigned char *encoded = NULL, *nencoded;
 286         int end = 0;
 287         size_t encoded_len = 0, len;
 288
 289         wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
 290                    *line, name);
 291
 292         while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
 293                 if (os_strcmp(pos, "}") == 0) {
 294                         end = 1;
 295                         break;
 296                 }
 297
 298                 len = os_strlen(pos);
 299                 nencoded = os_realloc(encoded, encoded_len + len);
 300                 if (nencoded == NULL) {
 301                         wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
 302                                    "blob", *line);
 303                         os_free(encoded);
 304                         return NULL;
 305                 }
 306                 encoded = nencoded;
 307                 os_memcpy(encoded + encoded_len, pos, len);
 308                 encoded_len += len;
 309         }
 310
 311         if (!end) {
 312                 wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
 313                            "properly", *line);
 314                 os_free(encoded);
 315                 return NULL;
 316         }
 317
 318         blob = os_zalloc(sizeof(*blob));
 319         if (blob == NULL) {
 320                 os_free(encoded);
 321                 return NULL;
 322         }
 323         blob->name = os_strdup(name);
 324         blob->data = base64_decode(encoded, encoded_len, &blob->len);
 325         os_free(encoded);
 326
 327         if (blob->name == NULL || blob->data == NULL) {
 328                 wpa_config_free_blob(blob);
 329                 return NULL;
 330         }
 331
 332         return blob;
 333 }
 334
 335
 336 static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
 337                                    int *line, char *bname)
 338 {
 339         char *name_end;
 340         struct wpa_config_blob *blob;
 341
 342         name_end = os_strchr(bname, '=');
 343         if (name_end == NULL) {
 344                 wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
 345                            *line);
 346                 return -1;
 347         }
 348         *name_end = '\0';
 349
 350         blob = wpa_config_read_blob(f, line, bname);
 351         if (blob == NULL) {
 352                 wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
 353                            *line, bname);
 354                 return -1;
 355         }
 356         wpa_config_set_blob(config, blob);
 357         return 0;
 358 }
 359 #endif /* CONFIG_NO_CONFIG_BLOBS */
 360
 361
 362 struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
 363 {
 364         FILE *f;
 365         char buf[512], *pos;
 366         int errors = 0, line = 0;
 367         struct wpa_ssid *ssid, *tail, *head;
 368         struct wpa_cred *cred, *cred_tail, *cred_head;
 369         struct wpa_config *config;
 370         int id = 0;
 371         int cred_id = 0;
 372
 373         if (name == NULL)
 374                 return NULL;
 375         if (cfgp)
 376                 config = cfgp;
 377         else
 378                 config = wpa_config_alloc_empty(NULL, NULL);
 379         if (config == NULL) {
 380                 wpa_printf(MSG_ERROR, "Failed to allocate config file "
 381                            "structure");
 382                 return NULL;
 383         }
 384         tail = head = config->ssid;
 385         while (tail && tail->next)
 386                 tail = tail->next;
 387         cred_tail = cred_head = config->cred;
 388         while (cred_tail && cred_tail->next)
 389                 cred_tail = cred_tail->next;
 390
 391         wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
 392         f = fopen(name, "r");
 393         if (f == NULL) {
 394                 wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
 395                            "error: %s", name, strerror(errno));
 396                 os_free(config);
 397                 return NULL;
 398         }
 399
 400         while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
 401                 if (os_strcmp(pos, "network={") == 0) {
 402                         ssid = wpa_config_read_network(f, &line, id++);
 403                         if (ssid == NULL) {
 404                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
 405                                            "parse network block.", line);
 406                                 errors++;
 407                                 continue;
 408                         }
 409                         if (head == NULL) {
 410                                 head = tail = ssid;
 411                         } else {
 412                                 tail->next = ssid;
 413                                 tail = ssid;
 414                         }
 415                         if (wpa_config_add_prio_network(config, ssid)) {
 416                                 wpa_printf(MSG_ERROR, "Line %d: failed to add "
 417                                            "network block to priority list.",
 418                                            line);
 419                                 errors++;
 420                                 continue;
 421                         }
 422                 } else if (os_strcmp(pos, "cred={") == 0) {
 423                         cred = wpa_config_read_cred(f, &line, cred_id++);
 424                         if (cred == NULL) {
 425                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
 426                                            "parse cred block.", line);
 427                                 errors++;
 428                                 continue;
 429                         }
 430                         if (cred_head == NULL) {
 431                                 cred_head = cred_tail = cred;
 432                         } else {
 433                                 cred_tail->next = cred;
 434                                 cred_tail = cred;
 435                         }
 436 #ifndef CONFIG_NO_CONFIG_BLOBS
 437                 } else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
 438                         if (wpa_config_process_blob(config, f, &line, pos + 12)
 439                             < 0) {
 440                                 wpa_printf(MSG_ERROR, "Line %d: failed to "
 441                                            "process blob.", line);
 442                                 errors++;
 443                                 continue;
 444                         }
 445 #endif /* CONFIG_NO_CONFIG_BLOBS */
 446                 } else if (wpa_config_process_global(config, pos, line) < 0) {
 447                         wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
 448                                    "line '%s'.", line, pos);
 449                         errors++;
 450                         continue;
 451                 }
 452         }
 453
 454         fclose(f);
 455
 456         config->ssid = head;
 457         wpa_config_debug_dump_networks(config);
 458         config->cred = cred_head;
 459
 460 #ifndef WPA_IGNORE_CONFIG_ERRORS
 461         if (errors) {
 462                 wpa_config_free(config);
 463                 config = NULL;
 464                 head = NULL;
 465         }
 466 #endif /* WPA_IGNORE_CONFIG_ERRORS */
 467
 468         return config;
 469 }
 470
 471
 472 #ifndef CONFIG_NO_CONFIG_WRITE
 473
 474 static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
 475 {
 476         char *value = wpa_config_get(ssid, field);
 477         if (value == NULL)
 478                 return;
 479         fprintf(f, "\t%s=%s\n", field, value);
 480         os_free(value);
 481 }
 482
 483
 484 static void write_int(FILE *f, const char *field, int value, int def)
 485 {
 486         if (value == def)
 487                 return;
 488         fprintf(f, "\t%s=%d\n", field, value);
 489 }
 490
 491
 492 static void write_bssid(FILE *f, struct wpa_ssid *ssid)
 493 {
 494         char *value = wpa_config_get(ssid, "bssid");
 495         if (value == NULL)
 496                 return;
 497         fprintf(f, "\tbssid=%s\n", value);
 498         os_free(value);
 499 }
 500
 501
 502 static void write_psk(FILE *f, struct wpa_ssid *ssid)
 503 {
 504         char *value = wpa_config_get(ssid, "psk");
 505         if (value == NULL)
 506                 return;
 507         fprintf(f, "\tpsk=%s\n", value);
 508         os_free(value);
 509 }
 510
 511
 512 static void write_proto(FILE *f, struct wpa_ssid *ssid)
 513 {
 514         char *value;
 515
 516         if (ssid->proto == DEFAULT_PROTO)
 517                 return;
 518
 519         value = wpa_config_get(ssid, "proto");
 520         if (value == NULL)
 521                 return;
 522         if (value[0])
 523                 fprintf(f, "\tproto=%s\n", value);
 524         os_free(value);
 525 }
 526
 527
 528 static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
 529 {
 530         char *value;
 531
 532         if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
 533                 return;
 534
 535         value = wpa_config_get(ssid, "key_mgmt");
 536         if (value == NULL)
 537                 return;
 538         if (value[0])
 539                 fprintf(f, "\tkey_mgmt=%s\n", value);
 540         os_free(value);
 541 }
 542
 543
 544 static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
 545 {
 546         char *value;
 547
 548         if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
 549                 return;
 550
 551         value = wpa_config_get(ssid, "pairwise");
 552         if (value == NULL)
 553                 return;
 554         if (value[0])
 555                 fprintf(f, "\tpairwise=%s\n", value);
 556         os_free(value);
 557 }
 558
 559
 560 static void write_group(FILE *f, struct wpa_ssid *ssid)
 561 {
 562         char *value;
 563
 564         if (ssid->group_cipher == DEFAULT_GROUP)
 565                 return;
 566
 567         value = wpa_config_get(ssid, "group");
 568         if (value == NULL)
 569                 return;
 570         if (value[0])
 571                 fprintf(f, "\tgroup=%s\n", value);
 572         os_free(value);
 573 }
 574
 575
 576 static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
 577 {
 578         char *value;
 579
 580         if (ssid->auth_alg == 0)
 581                 return;
 582
 583         value = wpa_config_get(ssid, "auth_alg");
 584         if (value == NULL)
 585                 return;
 586         if (value[0])
 587                 fprintf(f, "\tauth_alg=%s\n", value);
 588         os_free(value);
 589 }
 590
 591
 592 #ifdef IEEE8021X_EAPOL
 593 static void write_eap(FILE *f, struct wpa_ssid *ssid)
 594 {
 595         char *value;
 596
 597         value = wpa_config_get(ssid, "eap");
 598         if (value == NULL)
 599                 return;
 600
 601         if (value[0])
 602                 fprintf(f, "\teap=%s\n", value);
 603         os_free(value);
 604 }
 605 #endif /* IEEE8021X_EAPOL */
 606
 607
 608 static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
 609 {
 610         char field[20], *value;
 611         int res;
 612
 613         res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
 614         if (os_snprintf_error(sizeof(field), res))
 615                 return;
 616         value = wpa_config_get(ssid, field);
 617         if (value) {
 618                 fprintf(f, "\t%s=%s\n", field, value);
 619                 os_free(value);
 620         }
 621 }
 622
 623
 624 #ifdef CONFIG_P2P
 625
 626 static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
 627 {
 628         char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
 629         if (value == NULL)
 630                 return;
 631         fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
 632         os_free(value);
 633 }
 634
 635 static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
 636 {
 637         char *value = wpa_config_get(ssid, "p2p_client_list");
 638         if (value == NULL)
 639                 return;
 640         fprintf(f, "\tp2p_client_list=%s\n", value);
 641         os_free(value);
 642 }
 643
 644
 645 static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
 646 {
 647         struct psk_list_entry *psk;
 648         char hex[32 * 2 + 1];
 649
 650         dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
 651                 wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
 652                 fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
 653                         psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
 654         }
 655 }
 656
 657 #endif /* CONFIG_P2P */
 658
 659
 660 static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
 661 {
 662         int i;
 663
 664 #define STR(t) write_str(f, #t, ssid)
 665 #define INT(t) write_int(f, #t, ssid->t, 0)
 666 #define INTe(t) write_int(f, #t, ssid->eap.t, 0)
 667 #define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
 668 #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
 669
 670         STR(ssid);
 671         INT(scan_ssid);
 672         write_bssid(f, ssid);
 673         write_psk(f, ssid);
 674         write_proto(f, ssid);
 675         write_key_mgmt(f, ssid);
 676         INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
 677         write_pairwise(f, ssid);
 678         write_group(f, ssid);
 679         write_auth_alg(f, ssid);
 680         STR(bgscan);
 681         STR(autoscan);
 682         STR(scan_freq);
 683 #ifdef IEEE8021X_EAPOL
 684         write_eap(f, ssid);
 685         STR(identity);
 686         STR(anonymous_identity);
 687         STR(password);
 688         STR(ca_cert);
 689         STR(ca_path);
 690         STR(client_cert);
 691         STR(private_key);
 692         STR(private_key_passwd);
 693         STR(dh_file);
 694         STR(subject_match);
 695         STR(altsubject_match);
 696         STR(domain_suffix_match);
 697         STR(domain_match);
 698         STR(ca_cert2);
 699         STR(ca_path2);
 700         STR(client_cert2);
 701         STR(private_key2);
 702         STR(private_key2_passwd);
 703         STR(dh_file2);
 704         STR(subject_match2);
 705         STR(altsubject_match2);
 706         STR(domain_suffix_match2);
 707         STR(domain_match2);
 708         STR(phase1);
 709         STR(phase2);
 710         STR(pcsc);
 711         STR(pin);
 712         STR(engine_id);
 713         STR(key_id);
 714         STR(cert_id);
 715         STR(ca_cert_id);
 716         STR(key2_id);
 717         STR(pin2);
 718         STR(engine2_id);
 719         STR(cert2_id);
 720         STR(ca_cert2_id);
 721         INTe(engine);
 722         INTe(engine2);
 723         INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
 724         INTe(erp);
 725 #endif /* IEEE8021X_EAPOL */
 726         for (i = 0; i < 4; i++)
 727                 write_wep_key(f, i, ssid);
 728         INT(wep_tx_keyidx);
 729         INT(priority);
 730 #ifdef IEEE8021X_EAPOL
 731         INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
 732         STR(pac_file);
 733         INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
 734         INTe(ocsp);
 735         INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
 736 #endif /* IEEE8021X_EAPOL */
 737         INT(mode);
 738         INT(frequency);
 739         write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
 740         INT(disabled);
 741         INT(peerkey);
 742 #ifdef CONFIG_IEEE80211W
 743         write_int(f, "ieee80211w", ssid->ieee80211w,
 744                   MGMT_FRAME_PROTECTION_DEFAULT);
 745 #endif /* CONFIG_IEEE80211W */
 746         STR(id_str);
 747 #ifdef CONFIG_P2P
 748         write_go_p2p_dev_addr(f, ssid);
 749         write_p2p_client_list(f, ssid);
 750         write_psk_list(f, ssid);
 751 #endif /* CONFIG_P2P */
 752         INT(dtim_period);
 753         INT(beacon_int);
 754 #ifdef CONFIG_MACSEC
 755         INT(macsec_policy);
 756 #endif /* CONFIG_MACSEC */
 757 #ifdef CONFIG_HS20
 758         INT(update_identifier);
 759 #endif /* CONFIG_HS20 */
 760         write_int(f, "mac_addr", ssid->mac_addr, -1);
 761 #ifdef CONFIG_MESH
 762         STR(mesh_basic_rates);
 763         INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
 764         INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
 765         INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
 766         INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
 767 #endif /* CONFIG_MESH */
 768
 769 #undef STR
 770 #undef INT
 771 #undef INT_DEF
 772 }
 773
 774
 775 static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
 776 {
 777         size_t i;
 778
 779         if (cred->priority)
 780                 fprintf(f, "\tpriority=%d\n", cred->priority);
 781         if (cred->pcsc)
 782                 fprintf(f, "\tpcsc=%d\n", cred->pcsc);
 783         if (cred->realm)
 784                 fprintf(f, "\trealm=\"%s\"\n", cred->realm);
 785         if (cred->username)
 786                 fprintf(f, "\tusername=\"%s\"\n", cred->username);
 787         if (cred->password && cred->ext_password)
 788                 fprintf(f, "\tpassword=ext:%s\n", cred->password);
 789         else if (cred->password)
 790                 fprintf(f, "\tpassword=\"%s\"\n", cred->password);
 791         if (cred->ca_cert)
 792                 fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
 793         if (cred->client_cert)
 794                 fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
 795         if (cred->private_key)
 796                 fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
 797         if (cred->private_key_passwd)
 798                 fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
 799                         cred->private_key_passwd);
 800         if (cred->imsi)
 801                 fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
 802         if (cred->milenage)
 803                 fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
 804         for (i = 0; i < cred->num_domain; i++)
 805                 fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
 806         if (cred->domain_suffix_match)
 807                 fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
 808                         cred->domain_suffix_match);
 809         if (cred->roaming_consortium_len) {
 810                 fprintf(f, "\troaming_consortium=");
 811                 for (i = 0; i < cred->roaming_consortium_len; i++)
 812                         fprintf(f, "%02x", cred->roaming_consortium[i]);
 813                 fprintf(f, "\n");
 814         }
 815         if (cred->eap_method) {
 816                 const char *name;
 817                 name = eap_get_name(cred->eap_method[0].vendor,
 818                                     cred->eap_method[0].method);
 819                 if (name)
 820                         fprintf(f, "\teap=%s\n", name);
 821         }
 822         if (cred->phase1)
 823                 fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
 824         if (cred->phase2)
 825                 fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
 826         if (cred->excluded_ssid) {
 827                 size_t j;
 828                 for (i = 0; i < cred->num_excluded_ssid; i++) {
 829                         struct excluded_ssid *e = &cred->excluded_ssid[i];
 830                         fprintf(f, "\texcluded_ssid=");
 831                         for (j = 0; j < e->ssid_len; j++)
 832                                 fprintf(f, "%02x", e->ssid[j]);
 833                         fprintf(f, "\n");
 834                 }
 835         }
 836         if (cred->roaming_partner) {
 837                 for (i = 0; i < cred->num_roaming_partner; i++) {
 838                         struct roaming_partner *p = &cred->roaming_partner[i];
 839                         fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
 840                                 p->fqdn, p->exact_match, p->priority,
 841                                 p->country);
 842                 }
 843         }
 844         if (cred->update_identifier)
 845                 fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
 846
 847         if (cred->provisioning_sp)
 848                 fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
 849         if (cred->sp_priority)
 850                 fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
 851
 852         if (cred->min_dl_bandwidth_home)
 853                 fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
 854                         cred->min_dl_bandwidth_home);
 855         if (cred->min_ul_bandwidth_home)
 856                 fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
 857                         cred->min_ul_bandwidth_home);
 858         if (cred->min_dl_bandwidth_roaming)
 859                 fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
 860                         cred->min_dl_bandwidth_roaming);
 861         if (cred->min_ul_bandwidth_roaming)
 862                 fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
 863                         cred->min_ul_bandwidth_roaming);
 864
 865         if (cred->max_bss_load)
 866                 fprintf(f, "\tmax_bss_load=%u\n",
 867                         cred->max_bss_load);
 868
 869         if (cred->ocsp)
 870                 fprintf(f, "\tocsp=%d\n", cred->ocsp);
 871
 872         if (cred->num_req_conn_capab) {
 873                 for (i = 0; i < cred->num_req_conn_capab; i++) {
 874                         int *ports;
 875
 876                         fprintf(f, "\treq_conn_capab=%u",
 877                                 cred->req_conn_capab_proto[i]);
 878                         ports = cred->req_conn_capab_port[i];
 879                         if (ports) {
 880                                 int j;
 881                                 for (j = 0; ports[j] != -1; j++) {
 882                                         fprintf(f, "%s%d", j > 0 ? "," : ":",
 883                                                 ports[j]);
 884                                 }
 885                         }
 886                         fprintf(f, "\n");
 887                 }
 888         }
 889
 890         if (cred->required_roaming_consortium_len) {
 891                 fprintf(f, "\trequired_roaming_consortium=");
 892                 for (i = 0; i < cred->required_roaming_consortium_len; i++)
 893                         fprintf(f, "%02x",
 894                                 cred->required_roaming_consortium[i]);
 895                 fprintf(f, "\n");
 896         }
 897
 898         if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
 899                 fprintf(f, "\tsim_num=%d\n", cred->sim_num);
 900 }
 901
 902
 903 #ifndef CONFIG_NO_CONFIG_BLOBS
 904 static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
 905 {
 906         unsigned char *encoded;
 907
 908         encoded = base64_encode(blob->data, blob->len, NULL);
 909         if (encoded == NULL)
 910                 return -1;
 911
 912         fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
 913         os_free(encoded);
 914         return 0;
 915 }
 916 #endif /* CONFIG_NO_CONFIG_BLOBS */
 917
 918
 919 static void write_global_bin(FILE *f, const char *field,
 920                              const struct wpabuf *val)
 921 {
 922         size_t i;
 923         const u8 *pos;
 924
 925         if (val == NULL)
 926                 return;
 927
 928         fprintf(f, "%s=", field);
 929         pos = wpabuf_head(val);
 930         for (i = 0; i < wpabuf_len(val); i++)
 931                 fprintf(f, "%02X", *pos++);
 932         fprintf(f, "\n");
 933 }
 934
 935
 936 static void wpa_config_write_global(FILE *f, struct wpa_config *config)
 937 {
 938 #ifdef CONFIG_CTRL_IFACE
 939         if (config->ctrl_interface)
 940                 fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
 941         if (config->ctrl_interface_group)
 942                 fprintf(f, "ctrl_interface_group=%s\n",
 943                         config->ctrl_interface_group);
 944 #endif /* CONFIG_CTRL_IFACE */
 945         if (config->eapol_version != DEFAULT_EAPOL_VERSION)
 946                 fprintf(f, "eapol_version=%d\n", config->eapol_version);
 947         if (config->ap_scan != DEFAULT_AP_SCAN)
 948                 fprintf(f, "ap_scan=%d\n", config->ap_scan);
 949         if (config->disable_scan_offload)
 950                 fprintf(f, "disable_scan_offload=%d\n",
 951                         config->disable_scan_offload);
 952         if (config->fast_reauth != DEFAULT_FAST_REAUTH)
 953                 fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
 954         if (config->opensc_engine_path)
 955                 fprintf(f, "opensc_engine_path=%s\n",
 956                         config->opensc_engine_path);
 957         if (config->pkcs11_engine_path)
 958                 fprintf(f, "pkcs11_engine_path=%s\n",
 959                         config->pkcs11_engine_path);
 960         if (config->pkcs11_module_path)
 961                 fprintf(f, "pkcs11_module_path=%s\n",
 962                         config->pkcs11_module_path);
 963         if (config->openssl_ciphers)
 964                 fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
 965         if (config->pcsc_reader)
 966                 fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
 967         if (config->pcsc_pin)
 968                 fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
 969         if (config->driver_param)
 970                 fprintf(f, "driver_param=%s\n", config->driver_param);
 971         if (config->dot11RSNAConfigPMKLifetime)
 972                 fprintf(f, "dot11RSNAConfigPMKLifetime=%d\n",
 973                         config->dot11RSNAConfigPMKLifetime);
 974         if (config->dot11RSNAConfigPMKReauthThreshold)
 975                 fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%d\n",
 976                         config->dot11RSNAConfigPMKReauthThreshold);
 977         if (config->dot11RSNAConfigSATimeout)
 978                 fprintf(f, "dot11RSNAConfigSATimeout=%d\n",
 979                         config->dot11RSNAConfigSATimeout);
 980         if (config->update_config)
 981                 fprintf(f, "update_config=%d\n", config->update_config);
 982 #ifdef CONFIG_WPS
 983         if (!is_nil_uuid(config->uuid)) {
 984                 char buf[40];
 985                 uuid_bin2str(config->uuid, buf, sizeof(buf));
 986                 fprintf(f, "uuid=%s\n", buf);
 987         }
 988         if (config->device_name)
 989                 fprintf(f, "device_name=%s\n", config->device_name);
 990         if (config->manufacturer)
 991                 fprintf(f, "manufacturer=%s\n", config->manufacturer);
 992         if (config->model_name)
 993                 fprintf(f, "model_name=%s\n", config->model_name);
 994         if (config->model_number)
 995                 fprintf(f, "model_number=%s\n", config->model_number);
 996         if (config->serial_number)
 997                 fprintf(f, "serial_number=%s\n", config->serial_number);
 998         {
 999                 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1000                 buf = wps_dev_type_bin2str(config->device_type,
1001                                            _buf, sizeof(_buf));
1002                 if (os_strcmp(buf, "0-00000000-0") != 0)
1003                         fprintf(f, "device_type=%s\n", buf);
1004         }
1005         if (WPA_GET_BE32(config->os_version))
1006                 fprintf(f, "os_version=%08x\n",
1007                         WPA_GET_BE32(config->os_version));
1008         if (config->config_methods)
1009                 fprintf(f, "config_methods=%s\n", config->config_methods);
1010         if (config->wps_cred_processing)
1011                 fprintf(f, "wps_cred_processing=%d\n",
1012                         config->wps_cred_processing);
1013         if (config->wps_vendor_ext_m1) {
1014                 int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1015                 const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1016                 if (len > 0) {
1017                         fprintf(f, "wps_vendor_ext_m1=");
1018                         for (i = 0; i < len; i++)
1019                                 fprintf(f, "%02x", *p++);
1020                         fprintf(f, "\n");
1021                 }
1022         }
1023 #endif /* CONFIG_WPS */
1024 #ifdef CONFIG_P2P
1025         if (config->p2p_listen_reg_class)
1026                 fprintf(f, "p2p_listen_reg_class=%u\n",
1027                         config->p2p_listen_reg_class);
1028         if (config->p2p_listen_channel)
1029                 fprintf(f, "p2p_listen_channel=%u\n",
1030                         config->p2p_listen_channel);
1031         if (config->p2p_oper_reg_class)
1032                 fprintf(f, "p2p_oper_reg_class=%u\n",
1033                         config->p2p_oper_reg_class);
1034         if (config->p2p_oper_channel)
1035                 fprintf(f, "p2p_oper_channel=%u\n", config->p2p_oper_channel);
1036         if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1037                 fprintf(f, "p2p_go_intent=%u\n", config->p2p_go_intent);
1038         if (config->p2p_ssid_postfix)
1039                 fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1040         if (config->persistent_reconnect)
1041                 fprintf(f, "persistent_reconnect=%u\n",
1042                         config->persistent_reconnect);
1043         if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1044                 fprintf(f, "p2p_intra_bss=%u\n", config->p2p_intra_bss);
1045         if (config->p2p_group_idle)
1046                 fprintf(f, "p2p_group_idle=%u\n", config->p2p_group_idle);
1047         if (config->p2p_passphrase_len)
1048                 fprintf(f, "p2p_passphrase_len=%u\n",
1049                         config->p2p_passphrase_len);
1050         if (config->p2p_pref_chan) {
1051                 unsigned int i;
1052                 fprintf(f, "p2p_pref_chan=");
1053                 for (i = 0; i < config->num_p2p_pref_chan; i++) {
1054                         fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1055                                 config->p2p_pref_chan[i].op_class,
1056                                 config->p2p_pref_chan[i].chan);
1057                 }
1058                 fprintf(f, "\n");
1059         }
1060         if (config->p2p_no_go_freq.num) {
1061                 char *val = freq_range_list_str(&config->p2p_no_go_freq);
1062                 if (val) {
1063                         fprintf(f, "p2p_no_go_freq=%s\n", val);
1064                         os_free(val);
1065                 }
1066         }
1067         if (config->p2p_add_cli_chan)
1068                 fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1069         if (config->p2p_optimize_listen_chan !=
1070             DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1071                 fprintf(f, "p2p_optimize_listen_chan=%d\n",
1072                         config->p2p_optimize_listen_chan);
1073         if (config->p2p_go_ht40)
1074                 fprintf(f, "p2p_go_ht40=%u\n", config->p2p_go_ht40);
1075         if (config->p2p_go_vht)
1076                 fprintf(f, "p2p_go_vht=%u\n", config->p2p_go_vht);
1077         if (config->p2p_disabled)
1078                 fprintf(f, "p2p_disabled=%u\n", config->p2p_disabled);
1079         if (config->p2p_no_group_iface)
1080                 fprintf(f, "p2p_no_group_iface=%u\n",
1081                         config->p2p_no_group_iface);
1082         if (config->p2p_ignore_shared_freq)
1083                 fprintf(f, "p2p_ignore_shared_freq=%u\n",
1084                         config->p2p_ignore_shared_freq);
1085 #endif /* CONFIG_P2P */
1086         if (config->country[0] && config->country[1]) {
1087                 fprintf(f, "country=%c%c\n",
1088                         config->country[0], config->country[1]);
1089         }
1090         if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1091                 fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1092         if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1093                 fprintf(f, "bss_expiration_age=%u\n",
1094                         config->bss_expiration_age);
1095         if (config->bss_expiration_scan_count !=
1096             DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1097                 fprintf(f, "bss_expiration_scan_count=%u\n",
1098                         config->bss_expiration_scan_count);
1099         if (config->filter_ssids)
1100                 fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1101         if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1102                 fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1103         if (config->disassoc_low_ack)
1104                 fprintf(f, "disassoc_low_ack=%u\n", config->disassoc_low_ack);
1105 #ifdef CONFIG_HS20
1106         if (config->hs20)
1107                 fprintf(f, "hs20=1\n");
1108 #endif /* CONFIG_HS20 */
1109 #ifdef CONFIG_INTERWORKING
1110         if (config->interworking)
1111                 fprintf(f, "interworking=%u\n", config->interworking);
1112         if (!is_zero_ether_addr(config->hessid))
1113                 fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1114         if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1115                 fprintf(f, "access_network_type=%d\n",
1116                         config->access_network_type);
1117 #endif /* CONFIG_INTERWORKING */
1118         if (config->pbc_in_m1)
1119                 fprintf(f, "pbc_in_m1=%u\n", config->pbc_in_m1);
1120         if (config->wps_nfc_pw_from_config) {
1121                 if (config->wps_nfc_dev_pw_id)
1122                         fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1123                                 config->wps_nfc_dev_pw_id);
1124                 write_global_bin(f, "wps_nfc_dh_pubkey",
1125                                  config->wps_nfc_dh_pubkey);
1126                 write_global_bin(f, "wps_nfc_dh_privkey",
1127                                  config->wps_nfc_dh_privkey);
1128                 write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1129         }
1130
1131         if (config->ext_password_backend)
1132                 fprintf(f, "ext_password_backend=%s\n",
1133                         config->ext_password_backend);
1134         if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1135                 fprintf(f, "p2p_go_max_inactivity=%d\n",
1136                         config->p2p_go_max_inactivity);
1137         if (config->auto_interworking)
1138                 fprintf(f, "auto_interworking=%d\n",
1139                         config->auto_interworking);
1140         if (config->okc)
1141                 fprintf(f, "okc=%d\n", config->okc);
1142         if (config->pmf)
1143                 fprintf(f, "pmf=%d\n", config->pmf);
1144         if (config->dtim_period)
1145                 fprintf(f, "dtim_period=%d\n", config->dtim_period);
1146         if (config->beacon_int)
1147                 fprintf(f, "beacon_int=%d\n", config->beacon_int);
1148
1149         if (config->sae_groups) {
1150                 int i;
1151                 fprintf(f, "sae_groups=");
1152                 for (i = 0; config->sae_groups[i] >= 0; i++) {
1153                         fprintf(f, "%s%d", i > 0 ? " " : "",
1154                                 config->sae_groups[i]);
1155                 }
1156                 fprintf(f, "\n");
1157         }
1158
1159         if (config->ap_vendor_elements) {
1160                 int i, len = wpabuf_len(config->ap_vendor_elements);
1161                 const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1162                 if (len > 0) {
1163                         fprintf(f, "ap_vendor_elements=");
1164                         for (i = 0; i < len; i++)
1165                                 fprintf(f, "%02x", *p++);
1166                         fprintf(f, "\n");
1167                 }
1168         }
1169
1170         if (config->ignore_old_scan_res)
1171                 fprintf(f, "ignore_old_scan_res=%d\n",
1172                         config->ignore_old_scan_res);
1173
1174         if (config->freq_list && config->freq_list[0]) {
1175                 int i;
1176                 fprintf(f, "freq_list=");
1177                 for (i = 0; config->freq_list[i]; i++) {
1178                         fprintf(f, "%s%u", i > 0 ? " " : "",
1179                                 config->freq_list[i]);
1180                 }
1181                 fprintf(f, "\n");
1182         }
1183         if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1184                 fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1185
1186         if (config->sched_scan_interval)
1187                 fprintf(f, "sched_scan_interval=%u\n",
1188                         config->sched_scan_interval);
1189
1190         if (config->external_sim)
1191                 fprintf(f, "external_sim=%d\n", config->external_sim);
1192
1193         if (config->tdls_external_control)
1194                 fprintf(f, "tdls_external_control=%d\n",
1195                         config->tdls_external_control);
1196
1197         if (config->wowlan_triggers)
1198                 fprintf(f, "wowlan_triggers=%s\n",
1199                         config->wowlan_triggers);
1200
1201         if (config->bgscan)
1202                 fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1203
1204         if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1205                 fprintf(f, "p2p_search_delay=%u\n",
1206                         config->p2p_search_delay);
1207
1208         if (config->mac_addr)
1209                 fprintf(f, "mac_addr=%d\n", config->mac_addr);
1210
1211         if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1212                 fprintf(f, "rand_addr_lifetime=%u\n",
1213                         config->rand_addr_lifetime);
1214
1215         if (config->preassoc_mac_addr)
1216                 fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1217
1218         if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1219                 fprintf(f, "key_mgmt_offload=%u\n", config->key_mgmt_offload);
1220
1221         if (config->user_mpm != DEFAULT_USER_MPM)
1222                 fprintf(f, "user_mpm=%d\n", config->user_mpm);
1223
1224         if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1225                 fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1226
1227         if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1228                 fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1229
1230         if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1231                 fprintf(f, "mesh_max_inactivity=%d\n",
1232                         config->mesh_max_inactivity);
1233
1234         if (config->passive_scan)
1235                 fprintf(f, "cert_in_cb=%d\n", config->passive_scan);
1236 }
1237
1238 #endif /* CONFIG_NO_CONFIG_WRITE */
1239
1240
1241 int wpa_config_write(const char *name, struct wpa_config *config)
1242 {
1243 #ifndef CONFIG_NO_CONFIG_WRITE
1244         FILE *f;
1245         struct wpa_ssid *ssid;
1246         struct wpa_cred *cred;
1247 #ifndef CONFIG_NO_CONFIG_BLOBS
1248         struct wpa_config_blob *blob;
1249 #endif /* CONFIG_NO_CONFIG_BLOBS */
1250         int ret = 0;
1251         const char *orig_name = name;
1252         int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1253         char *tmp_name = os_malloc(tmp_len);
1254
1255         if (tmp_name) {
1256                 os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1257                 name = tmp_name;
1258         }
1259
1260         wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1261
1262         f = fopen(name, "w");
1263         if (f == NULL) {
1264                 wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1265                 os_free(tmp_name);
1266                 return -1;
1267         }
1268
1269         wpa_config_write_global(f, config);
1270
1271         for (cred = config->cred; cred; cred = cred->next) {
1272                 if (cred->temporary)
1273                         continue;
1274                 fprintf(f, "\ncred={\n");
1275                 wpa_config_write_cred(f, cred);
1276                 fprintf(f, "}\n");
1277         }
1278
1279         for (ssid = config->ssid; ssid; ssid = ssid->next) {
1280                 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1281                         continue; /* do not save temporary networks */
1282                 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1283                     !ssid->passphrase)
1284                         continue; /* do not save invalid network */
1285                 fprintf(f, "\nnetwork={\n");
1286                 wpa_config_write_network(f, ssid);
1287                 fprintf(f, "}\n");
1288         }
1289
1290 #ifndef CONFIG_NO_CONFIG_BLOBS
1291         for (blob = config->blobs; blob; blob = blob->next) {
1292                 ret = wpa_config_write_blob(f, blob);
1293                 if (ret)
1294                         break;
1295         }
1296 #endif /* CONFIG_NO_CONFIG_BLOBS */
1297
1298         fclose(f);
1299
1300         if (tmp_name) {
1301                 int chmod_ret = 0;
1302
1303 #ifdef ANDROID
1304                 chmod_ret = chmod(tmp_name,
1305                                   S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1306 #endif /* ANDROID */
1307                 if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1308                         ret = -1;
1309
1310                 os_free(tmp_name);
1311         }
1312
1313         wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1314                    orig_name, ret ? "un" : "");
1315         return ret;
1316 #else /* CONFIG_NO_CONFIG_WRITE */
1317         return -1;
1318 #endif /* CONFIG_NO_CONFIG_WRITE */
1319 }