2 * WPA Supplicant / Configuration backend: text file
3 * Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
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.
20 #include "eap_peer/eap_methods.h"
21 #include "eap_peer/eap.h"
24 static int newline_terminated(const char *buf, size_t buflen)
26 size_t len = os_strlen(buf);
29 if (len == buflen - 1 && buf[buflen - 1] != '\r' &&
36 static void skip_line_end(FILE *stream)
39 while (fgets(buf, sizeof(buf), stream)) {
40 buf[sizeof(buf) - 1] = '\0';
41 if (newline_terminated(buf, sizeof(buf)))
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.
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.
61 static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
64 char *pos, *end, *sstart;
66 while (fgets(s, size, stream)) {
69 if (!newline_terminated(s, size)) {
71 * The line was truncated - skip rest of it to avoid
72 * confusing error messages.
74 wpa_printf(MSG_INFO, "Long line in configuration file "
76 skip_line_end(stream);
80 /* Skip white space from the beginning of line. */
81 while (*pos == ' ' || *pos == '\t' || *pos == '\r')
84 /* Skip comment lines and empty lines */
85 if (*pos == '#' || *pos == '\n' || *pos == '\0')
89 * Remove # comments unless they are within a double quoted
92 sstart = os_strchr(pos, '"');
94 sstart = os_strrchr(sstart + 1, '"');
97 end = os_strchr(sstart, '#');
101 end = pos + os_strlen(pos) - 1;
103 /* Remove trailing white space. */
105 (*end == '\n' || *end == ' ' || *end == '\t' ||
123 static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
127 if (ssid->passphrase) {
129 wpa_printf(MSG_ERROR, "Line %d: both PSK and "
130 "passphrase configured.", line);
133 wpa_config_update_psk(ssid);
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 "
143 ssid->group_cipher &= ~WPA_CIPHER_CCMP;
150 static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
152 struct wpa_ssid *ssid;
153 int errors = 0, end = 0;
154 char buf[2000], *pos, *pos2;
156 wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
158 ssid = os_zalloc(sizeof(*ssid));
161 dl_list_init(&ssid->psk_list);
164 wpa_config_set_network_defaults(ssid);
166 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
167 if (os_strcmp(pos, "}") == 0) {
172 pos2 = os_strchr(pos, '=');
174 wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
175 "'%s'.", *line, pos);
182 if (os_strchr(pos2 + 1, '"') == NULL) {
183 wpa_printf(MSG_ERROR, "Line %d: invalid "
184 "quotation '%s'.", *line, pos2);
190 if (wpa_config_set(ssid, pos, pos2, *line) < 0)
195 wpa_printf(MSG_ERROR, "Line %d: network block was not "
196 "terminated properly.", *line);
200 errors += wpa_config_validate_network(ssid, *line);
203 wpa_config_free_ssid(ssid);
211 static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id)
213 struct wpa_cred *cred;
214 int errors = 0, end = 0;
215 char buf[256], *pos, *pos2;
217 wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line);
218 cred = os_zalloc(sizeof(*cred));
223 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
224 if (os_strcmp(pos, "}") == 0) {
229 pos2 = os_strchr(pos, '=');
231 wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
232 "'%s'.", *line, pos);
239 if (os_strchr(pos2 + 1, '"') == NULL) {
240 wpa_printf(MSG_ERROR, "Line %d: invalid "
241 "quotation '%s'.", *line, pos2);
247 if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
252 wpa_printf(MSG_ERROR, "Line %d: cred block was not "
253 "terminated properly.", *line);
258 wpa_config_free_cred(cred);
266 #ifndef CONFIG_NO_CONFIG_BLOBS
267 static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
270 struct wpa_config_blob *blob;
272 unsigned char *encoded = NULL, *nencoded;
274 size_t encoded_len = 0, len;
276 wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
279 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
280 if (os_strcmp(pos, "}") == 0) {
285 len = os_strlen(pos);
286 nencoded = os_realloc(encoded, encoded_len + len);
287 if (nencoded == NULL) {
288 wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
294 os_memcpy(encoded + encoded_len, pos, len);
299 wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
305 blob = os_zalloc(sizeof(*blob));
310 blob->name = os_strdup(name);
311 blob->data = base64_decode(encoded, encoded_len, &blob->len);
314 if (blob->name == NULL || blob->data == NULL) {
315 wpa_config_free_blob(blob);
323 static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
324 int *line, char *bname)
327 struct wpa_config_blob *blob;
329 name_end = os_strchr(bname, '=');
330 if (name_end == NULL) {
331 wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
337 blob = wpa_config_read_blob(f, line, bname);
339 wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
343 wpa_config_set_blob(config, blob);
346 #endif /* CONFIG_NO_CONFIG_BLOBS */
349 struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
353 int errors = 0, line = 0;
354 struct wpa_ssid *ssid, *tail = NULL, *head = NULL;
355 struct wpa_cred *cred, *cred_tail = NULL, *cred_head = NULL;
356 struct wpa_config *config;
365 config = wpa_config_alloc_empty(NULL, NULL);
366 if (config == NULL) {
367 wpa_printf(MSG_ERROR, "Failed to allocate config file "
372 cred_head = config->cred;
374 wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
375 f = fopen(name, "r");
377 wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
378 "error: %s", name, strerror(errno));
383 while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
384 if (os_strcmp(pos, "network={") == 0) {
385 ssid = wpa_config_read_network(f, &line, id++);
387 wpa_printf(MSG_ERROR, "Line %d: failed to "
388 "parse network block.", line);
398 if (wpa_config_add_prio_network(config, ssid)) {
399 wpa_printf(MSG_ERROR, "Line %d: failed to add "
400 "network block to priority list.",
405 } else if (os_strcmp(pos, "cred={") == 0) {
406 cred = wpa_config_read_cred(f, &line, cred_id++);
408 wpa_printf(MSG_ERROR, "Line %d: failed to "
409 "parse cred block.", line);
413 if (cred_head == NULL) {
414 cred_head = cred_tail = cred;
416 cred_tail->next = cred;
419 #ifndef CONFIG_NO_CONFIG_BLOBS
420 } else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
421 if (wpa_config_process_blob(config, f, &line, pos + 12)
423 wpa_printf(MSG_ERROR, "Line %d: failed to "
424 "process blob.", line);
428 #endif /* CONFIG_NO_CONFIG_BLOBS */
429 } else if (wpa_config_process_global(config, pos, line) < 0) {
430 wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
431 "line '%s'.", line, pos);
440 wpa_config_debug_dump_networks(config);
441 config->cred = cred_head;
443 #ifndef WPA_IGNORE_CONFIG_ERRORS
445 wpa_config_free(config);
449 #endif /* WPA_IGNORE_CONFIG_ERRORS */
455 #ifndef CONFIG_NO_CONFIG_WRITE
457 static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
459 char *value = wpa_config_get(ssid, field);
462 fprintf(f, "\t%s=%s\n", field, value);
467 static void write_int(FILE *f, const char *field, int value, int def)
471 fprintf(f, "\t%s=%d\n", field, value);
475 static void write_bssid(FILE *f, struct wpa_ssid *ssid)
477 char *value = wpa_config_get(ssid, "bssid");
480 fprintf(f, "\tbssid=%s\n", value);
485 static void write_psk(FILE *f, struct wpa_ssid *ssid)
487 char *value = wpa_config_get(ssid, "psk");
490 fprintf(f, "\tpsk=%s\n", value);
495 static void write_proto(FILE *f, struct wpa_ssid *ssid)
499 if (ssid->proto == DEFAULT_PROTO)
502 value = wpa_config_get(ssid, "proto");
506 fprintf(f, "\tproto=%s\n", value);
511 static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
515 if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
518 value = wpa_config_get(ssid, "key_mgmt");
522 fprintf(f, "\tkey_mgmt=%s\n", value);
527 static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
531 if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
534 value = wpa_config_get(ssid, "pairwise");
538 fprintf(f, "\tpairwise=%s\n", value);
543 static void write_group(FILE *f, struct wpa_ssid *ssid)
547 if (ssid->group_cipher == DEFAULT_GROUP)
550 value = wpa_config_get(ssid, "group");
554 fprintf(f, "\tgroup=%s\n", value);
559 static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
563 if (ssid->auth_alg == 0)
566 value = wpa_config_get(ssid, "auth_alg");
570 fprintf(f, "\tauth_alg=%s\n", value);
575 #ifdef IEEE8021X_EAPOL
576 static void write_eap(FILE *f, struct wpa_ssid *ssid)
580 value = wpa_config_get(ssid, "eap");
585 fprintf(f, "\teap=%s\n", value);
588 #endif /* IEEE8021X_EAPOL */
591 static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
593 char field[20], *value;
596 res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
597 if (res < 0 || (size_t) res >= sizeof(field))
599 value = wpa_config_get(ssid, field);
601 fprintf(f, "\t%s=%s\n", field, value);
609 static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
611 char *value = wpa_config_get(ssid, "p2p_client_list");
614 fprintf(f, "\tp2p_client_list=%s\n", value);
619 static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
621 struct psk_list_entry *psk;
622 char hex[32 * 2 + 1];
624 dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
625 wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
626 fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
627 psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
631 #endif /* CONFIG_P2P */
634 static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
638 #define STR(t) write_str(f, #t, ssid)
639 #define INT(t) write_int(f, #t, ssid->t, 0)
640 #define INTe(t) write_int(f, #t, ssid->eap.t, 0)
641 #define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
642 #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
646 write_bssid(f, ssid);
648 write_proto(f, ssid);
649 write_key_mgmt(f, ssid);
650 INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
651 write_pairwise(f, ssid);
652 write_group(f, ssid);
653 write_auth_alg(f, ssid);
657 #ifdef IEEE8021X_EAPOL
660 STR(anonymous_identity);
666 STR(private_key_passwd);
669 STR(altsubject_match);
670 STR(domain_suffix_match);
675 STR(private_key2_passwd);
678 STR(altsubject_match2);
679 STR(domain_suffix_match2);
695 INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
696 #endif /* IEEE8021X_EAPOL */
697 for (i = 0; i < 4; i++)
698 write_wep_key(f, i, ssid);
701 #ifdef IEEE8021X_EAPOL
702 INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
704 INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
705 #endif /* IEEE8021X_EAPOL */
708 write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
711 #ifdef CONFIG_IEEE80211W
712 write_int(f, "ieee80211w", ssid->ieee80211w,
713 MGMT_FRAME_PROTECTION_DEFAULT);
714 #endif /* CONFIG_IEEE80211W */
717 write_p2p_client_list(f, ssid);
718 write_psk_list(f, ssid);
719 #endif /* CONFIG_P2P */
729 static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
732 fprintf(f, "\tpriority=%d\n", cred->priority);
734 fprintf(f, "\tpcsc=%d\n", cred->pcsc);
736 fprintf(f, "\trealm=\"%s\"\n", cred->realm);
738 fprintf(f, "\tusername=\"%s\"\n", cred->username);
739 if (cred->password && cred->ext_password)
740 fprintf(f, "\tpassword=ext:%s\n", cred->password);
741 else if (cred->password)
742 fprintf(f, "\tpassword=\"%s\"\n", cred->password);
744 fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
745 if (cred->client_cert)
746 fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
747 if (cred->private_key)
748 fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
749 if (cred->private_key_passwd)
750 fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
751 cred->private_key_passwd);
753 fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
755 fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
757 fprintf(f, "\tdomain=\"%s\"\n", cred->domain);
758 if (cred->roaming_consortium_len) {
760 fprintf(f, "\troaming_consortium=");
761 for (i = 0; i < cred->roaming_consortium_len; i++)
762 fprintf(f, "%02x", cred->roaming_consortium[i]);
765 if (cred->eap_method) {
767 name = eap_get_name(cred->eap_method[0].vendor,
768 cred->eap_method[0].method);
769 fprintf(f, "\teap=%s\n", name);
772 fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
774 fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
775 if (cred->excluded_ssid) {
777 for (i = 0; i < cred->num_excluded_ssid; i++) {
778 struct excluded_ssid *e = &cred->excluded_ssid[i];
779 fprintf(f, "\texcluded_ssid=");
780 for (j = 0; j < e->ssid_len; j++)
781 fprintf(f, "%02x", e->ssid[j]);
788 #ifndef CONFIG_NO_CONFIG_BLOBS
789 static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
791 unsigned char *encoded;
793 encoded = base64_encode(blob->data, blob->len, NULL);
797 fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
801 #endif /* CONFIG_NO_CONFIG_BLOBS */
804 static void write_global_bin(FILE *f, const char *field,
805 const struct wpabuf *val)
813 fprintf(f, "%s=", field);
814 pos = wpabuf_head(val);
815 for (i = 0; i < wpabuf_len(val); i++)
816 fprintf(f, "%02X", *pos++);
821 static void wpa_config_write_global(FILE *f, struct wpa_config *config)
823 #ifdef CONFIG_CTRL_IFACE
824 if (config->ctrl_interface)
825 fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
826 if (config->ctrl_interface_group)
827 fprintf(f, "ctrl_interface_group=%s\n",
828 config->ctrl_interface_group);
829 #endif /* CONFIG_CTRL_IFACE */
830 if (config->eapol_version != DEFAULT_EAPOL_VERSION)
831 fprintf(f, "eapol_version=%d\n", config->eapol_version);
832 if (config->ap_scan != DEFAULT_AP_SCAN)
833 fprintf(f, "ap_scan=%d\n", config->ap_scan);
834 if (config->disable_scan_offload)
835 fprintf(f, "disable_scan_offload=%d\n",
836 config->disable_scan_offload);
837 if (config->fast_reauth != DEFAULT_FAST_REAUTH)
838 fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
839 if (config->opensc_engine_path)
840 fprintf(f, "opensc_engine_path=%s\n",
841 config->opensc_engine_path);
842 if (config->pkcs11_engine_path)
843 fprintf(f, "pkcs11_engine_path=%s\n",
844 config->pkcs11_engine_path);
845 if (config->pkcs11_module_path)
846 fprintf(f, "pkcs11_module_path=%s\n",
847 config->pkcs11_module_path);
848 if (config->pcsc_reader)
849 fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
850 if (config->pcsc_pin)
851 fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
852 if (config->driver_param)
853 fprintf(f, "driver_param=%s\n", config->driver_param);
854 if (config->dot11RSNAConfigPMKLifetime)
855 fprintf(f, "dot11RSNAConfigPMKLifetime=%d\n",
856 config->dot11RSNAConfigPMKLifetime);
857 if (config->dot11RSNAConfigPMKReauthThreshold)
858 fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%d\n",
859 config->dot11RSNAConfigPMKReauthThreshold);
860 if (config->dot11RSNAConfigSATimeout)
861 fprintf(f, "dot11RSNAConfigSATimeout=%d\n",
862 config->dot11RSNAConfigSATimeout);
863 if (config->update_config)
864 fprintf(f, "update_config=%d\n", config->update_config);
866 if (!is_nil_uuid(config->uuid)) {
868 uuid_bin2str(config->uuid, buf, sizeof(buf));
869 fprintf(f, "uuid=%s\n", buf);
871 if (config->device_name)
872 fprintf(f, "device_name=%s\n", config->device_name);
873 if (config->manufacturer)
874 fprintf(f, "manufacturer=%s\n", config->manufacturer);
875 if (config->model_name)
876 fprintf(f, "model_name=%s\n", config->model_name);
877 if (config->model_number)
878 fprintf(f, "model_number=%s\n", config->model_number);
879 if (config->serial_number)
880 fprintf(f, "serial_number=%s\n", config->serial_number);
882 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
883 buf = wps_dev_type_bin2str(config->device_type,
885 if (os_strcmp(buf, "0-00000000-0") != 0)
886 fprintf(f, "device_type=%s\n", buf);
888 if (WPA_GET_BE32(config->os_version))
889 fprintf(f, "os_version=%08x\n",
890 WPA_GET_BE32(config->os_version));
891 if (config->config_methods)
892 fprintf(f, "config_methods=%s\n", config->config_methods);
893 if (config->wps_cred_processing)
894 fprintf(f, "wps_cred_processing=%d\n",
895 config->wps_cred_processing);
896 if (config->wps_vendor_ext_m1) {
897 int i, len = wpabuf_len(config->wps_vendor_ext_m1);
898 const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
900 fprintf(f, "wps_vendor_ext_m1=");
901 for (i = 0; i < len; i++)
902 fprintf(f, "%02x", *p++);
906 #endif /* CONFIG_WPS */
908 if (config->p2p_listen_reg_class)
909 fprintf(f, "p2p_listen_reg_class=%u\n",
910 config->p2p_listen_reg_class);
911 if (config->p2p_listen_channel)
912 fprintf(f, "p2p_listen_channel=%u\n",
913 config->p2p_listen_channel);
914 if (config->p2p_oper_reg_class)
915 fprintf(f, "p2p_oper_reg_class=%u\n",
916 config->p2p_oper_reg_class);
917 if (config->p2p_oper_channel)
918 fprintf(f, "p2p_oper_channel=%u\n", config->p2p_oper_channel);
919 if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
920 fprintf(f, "p2p_go_intent=%u\n", config->p2p_go_intent);
921 if (config->p2p_ssid_postfix)
922 fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
923 if (config->persistent_reconnect)
924 fprintf(f, "persistent_reconnect=%u\n",
925 config->persistent_reconnect);
926 if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
927 fprintf(f, "p2p_intra_bss=%u\n", config->p2p_intra_bss);
928 if (config->p2p_group_idle)
929 fprintf(f, "p2p_group_idle=%u\n", config->p2p_group_idle);
930 if (config->p2p_pref_chan) {
932 fprintf(f, "p2p_pref_chan=");
933 for (i = 0; i < config->num_p2p_pref_chan; i++) {
934 fprintf(f, "%s%u:%u", i > 0 ? "," : "",
935 config->p2p_pref_chan[i].op_class,
936 config->p2p_pref_chan[i].chan);
940 if (config->p2p_go_ht40)
941 fprintf(f, "p2p_go_ht40=%u\n", config->p2p_go_ht40);
942 if (config->p2p_disabled)
943 fprintf(f, "p2p_disabled=%u\n", config->p2p_disabled);
944 if (config->p2p_no_group_iface)
945 fprintf(f, "p2p_no_group_iface=%u\n",
946 config->p2p_no_group_iface);
947 if (config->p2p_ignore_shared_freq)
948 fprintf(f, "p2p_ignore_shared_freq=%u\n",
949 config->p2p_ignore_shared_freq);
950 #endif /* CONFIG_P2P */
951 if (config->country[0] && config->country[1]) {
952 fprintf(f, "country=%c%c\n",
953 config->country[0], config->country[1]);
955 if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
956 fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
957 if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
958 fprintf(f, "bss_expiration_age=%u\n",
959 config->bss_expiration_age);
960 if (config->bss_expiration_scan_count !=
961 DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
962 fprintf(f, "bss_expiration_scan_count=%u\n",
963 config->bss_expiration_scan_count);
964 if (config->filter_ssids)
965 fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
966 if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
967 fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
968 if (config->disassoc_low_ack)
969 fprintf(f, "disassoc_low_ack=%u\n", config->disassoc_low_ack);
972 fprintf(f, "hs20=1\n");
973 #endif /* CONFIG_HS20 */
974 #ifdef CONFIG_INTERWORKING
975 if (config->interworking)
976 fprintf(f, "interworking=%u\n", config->interworking);
977 if (!is_zero_ether_addr(config->hessid))
978 fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
979 if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
980 fprintf(f, "access_network_type=%d\n",
981 config->access_network_type);
982 #endif /* CONFIG_INTERWORKING */
983 if (config->pbc_in_m1)
984 fprintf(f, "pbc_in_m1=%u\n", config->pbc_in_m1);
985 if (config->wps_nfc_pw_from_config) {
986 if (config->wps_nfc_dev_pw_id)
987 fprintf(f, "wps_nfc_dev_pw_id=%d\n",
988 config->wps_nfc_dev_pw_id);
989 write_global_bin(f, "wps_nfc_dh_pubkey",
990 config->wps_nfc_dh_pubkey);
991 write_global_bin(f, "wps_nfc_dh_privkey",
992 config->wps_nfc_dh_privkey);
993 write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
996 if (config->ext_password_backend)
997 fprintf(f, "ext_password_backend=%s\n",
998 config->ext_password_backend);
999 if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1000 fprintf(f, "p2p_go_max_inactivity=%d\n",
1001 config->p2p_go_max_inactivity);
1002 if (config->auto_interworking)
1003 fprintf(f, "auto_interworking=%d\n",
1004 config->auto_interworking);
1006 fprintf(f, "okc=%d\n", config->okc);
1008 fprintf(f, "pmf=%d\n", config->pmf);
1009 if (config->dtim_period)
1010 fprintf(f, "dtim_period=%d\n", config->dtim_period);
1011 if (config->beacon_int)
1012 fprintf(f, "beacon_int=%d\n", config->beacon_int);
1014 if (config->sae_groups) {
1016 fprintf(f, "sae_groups=");
1017 for (i = 0; config->sae_groups[i] >= 0; i++) {
1018 fprintf(f, "%s%d", i > 0 ? " " : "",
1019 config->sae_groups[i]);
1024 if (config->ap_vendor_elements) {
1025 int i, len = wpabuf_len(config->ap_vendor_elements);
1026 const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1028 fprintf(f, "ap_vendor_elements=");
1029 for (i = 0; i < len; i++)
1030 fprintf(f, "%02x", *p++);
1035 if (config->ignore_old_scan_res)
1036 fprintf(f, "ignore_old_scan_res=%d\n",
1037 config->ignore_old_scan_res);
1039 if (config->freq_list && config->freq_list[0]) {
1041 fprintf(f, "freq_list=");
1042 for (i = 0; config->freq_list[i]; i++) {
1043 fprintf(f, "%s%u", i > 0 ? " " : "",
1044 config->freq_list[i]);
1048 if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1049 fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1051 if (config->sched_scan_interval)
1052 fprintf(f, "sched_scan_interval=%u\n",
1053 config->sched_scan_interval);
1056 #endif /* CONFIG_NO_CONFIG_WRITE */
1059 int wpa_config_write(const char *name, struct wpa_config *config)
1061 #ifndef CONFIG_NO_CONFIG_WRITE
1063 struct wpa_ssid *ssid;
1064 struct wpa_cred *cred;
1065 #ifndef CONFIG_NO_CONFIG_BLOBS
1066 struct wpa_config_blob *blob;
1067 #endif /* CONFIG_NO_CONFIG_BLOBS */
1070 wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1072 f = fopen(name, "w");
1074 wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1078 wpa_config_write_global(f, config);
1080 for (cred = config->cred; cred; cred = cred->next) {
1081 fprintf(f, "\ncred={\n");
1082 wpa_config_write_cred(f, cred);
1086 for (ssid = config->ssid; ssid; ssid = ssid->next) {
1087 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1088 continue; /* do not save temporary networks */
1089 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1091 continue; /* do not save invalid network */
1092 fprintf(f, "\nnetwork={\n");
1093 wpa_config_write_network(f, ssid);
1097 #ifndef CONFIG_NO_CONFIG_BLOBS
1098 for (blob = config->blobs; blob; blob = blob->next) {
1099 ret = wpa_config_write_blob(f, blob);
1103 #endif /* CONFIG_NO_CONFIG_BLOBS */
1107 wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1108 name, ret ? "un" : "");
1110 #else /* CONFIG_NO_CONFIG_WRITE */
1112 #endif /* CONFIG_NO_CONFIG_WRITE */