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));
222 cred->sim_num = DEFAULT_USER_SELECTED_SIM;
224 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
225 if (os_strcmp(pos, "}") == 0) {
230 pos2 = os_strchr(pos, '=');
232 wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
233 "'%s'.", *line, pos);
240 if (os_strchr(pos2 + 1, '"') == NULL) {
241 wpa_printf(MSG_ERROR, "Line %d: invalid "
242 "quotation '%s'.", *line, pos2);
248 if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
253 wpa_printf(MSG_ERROR, "Line %d: cred block was not "
254 "terminated properly.", *line);
259 wpa_config_free_cred(cred);
267 #ifndef CONFIG_NO_CONFIG_BLOBS
268 static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
271 struct wpa_config_blob *blob;
273 unsigned char *encoded = NULL, *nencoded;
275 size_t encoded_len = 0, len;
277 wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
280 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
281 if (os_strcmp(pos, "}") == 0) {
286 len = os_strlen(pos);
287 nencoded = os_realloc(encoded, encoded_len + len);
288 if (nencoded == NULL) {
289 wpa_printf(MSG_ERROR, "Line %d: not enough memory for "
295 os_memcpy(encoded + encoded_len, pos, len);
300 wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
306 blob = os_zalloc(sizeof(*blob));
311 blob->name = os_strdup(name);
312 blob->data = base64_decode(encoded, encoded_len, &blob->len);
315 if (blob->name == NULL || blob->data == NULL) {
316 wpa_config_free_blob(blob);
324 static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
325 int *line, char *bname)
328 struct wpa_config_blob *blob;
330 name_end = os_strchr(bname, '=');
331 if (name_end == NULL) {
332 wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
338 blob = wpa_config_read_blob(f, line, bname);
340 wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
344 wpa_config_set_blob(config, blob);
347 #endif /* CONFIG_NO_CONFIG_BLOBS */
350 struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
354 int errors = 0, line = 0;
355 struct wpa_ssid *ssid, *tail, *head;
356 struct wpa_cred *cred, *cred_tail, *cred_head;
357 struct wpa_config *config;
366 config = wpa_config_alloc_empty(NULL, NULL);
367 if (config == NULL) {
368 wpa_printf(MSG_ERROR, "Failed to allocate config file "
372 tail = head = config->ssid;
373 while (tail && tail->next)
375 cred_tail = cred_head = config->cred;
376 while (cred_tail && cred_tail->next)
377 cred_tail = cred_tail->next;
379 wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
380 f = fopen(name, "r");
382 wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
383 "error: %s", name, strerror(errno));
388 while (wpa_config_get_line(buf, sizeof(buf), f, &line, &pos)) {
389 if (os_strcmp(pos, "network={") == 0) {
390 ssid = wpa_config_read_network(f, &line, id++);
392 wpa_printf(MSG_ERROR, "Line %d: failed to "
393 "parse network block.", line);
403 if (wpa_config_add_prio_network(config, ssid)) {
404 wpa_printf(MSG_ERROR, "Line %d: failed to add "
405 "network block to priority list.",
410 } else if (os_strcmp(pos, "cred={") == 0) {
411 cred = wpa_config_read_cred(f, &line, cred_id++);
413 wpa_printf(MSG_ERROR, "Line %d: failed to "
414 "parse cred block.", line);
418 if (cred_head == NULL) {
419 cred_head = cred_tail = cred;
421 cred_tail->next = cred;
424 #ifndef CONFIG_NO_CONFIG_BLOBS
425 } else if (os_strncmp(pos, "blob-base64-", 12) == 0) {
426 if (wpa_config_process_blob(config, f, &line, pos + 12)
428 wpa_printf(MSG_ERROR, "Line %d: failed to "
429 "process blob.", line);
433 #endif /* CONFIG_NO_CONFIG_BLOBS */
434 } else if (wpa_config_process_global(config, pos, line) < 0) {
435 wpa_printf(MSG_ERROR, "Line %d: Invalid configuration "
436 "line '%s'.", line, pos);
445 wpa_config_debug_dump_networks(config);
446 config->cred = cred_head;
448 #ifndef WPA_IGNORE_CONFIG_ERRORS
450 wpa_config_free(config);
454 #endif /* WPA_IGNORE_CONFIG_ERRORS */
460 #ifndef CONFIG_NO_CONFIG_WRITE
462 static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
464 char *value = wpa_config_get(ssid, field);
467 fprintf(f, "\t%s=%s\n", field, value);
472 static void write_int(FILE *f, const char *field, int value, int def)
476 fprintf(f, "\t%s=%d\n", field, value);
480 static void write_bssid(FILE *f, struct wpa_ssid *ssid)
482 char *value = wpa_config_get(ssid, "bssid");
485 fprintf(f, "\tbssid=%s\n", value);
490 static void write_psk(FILE *f, struct wpa_ssid *ssid)
492 char *value = wpa_config_get(ssid, "psk");
495 fprintf(f, "\tpsk=%s\n", value);
500 static void write_proto(FILE *f, struct wpa_ssid *ssid)
504 if (ssid->proto == DEFAULT_PROTO)
507 value = wpa_config_get(ssid, "proto");
511 fprintf(f, "\tproto=%s\n", value);
516 static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
520 if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
523 value = wpa_config_get(ssid, "key_mgmt");
527 fprintf(f, "\tkey_mgmt=%s\n", value);
532 static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
536 if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
539 value = wpa_config_get(ssid, "pairwise");
543 fprintf(f, "\tpairwise=%s\n", value);
548 static void write_group(FILE *f, struct wpa_ssid *ssid)
552 if (ssid->group_cipher == DEFAULT_GROUP)
555 value = wpa_config_get(ssid, "group");
559 fprintf(f, "\tgroup=%s\n", value);
564 static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
568 if (ssid->auth_alg == 0)
571 value = wpa_config_get(ssid, "auth_alg");
575 fprintf(f, "\tauth_alg=%s\n", value);
580 #ifdef IEEE8021X_EAPOL
581 static void write_eap(FILE *f, struct wpa_ssid *ssid)
585 value = wpa_config_get(ssid, "eap");
590 fprintf(f, "\teap=%s\n", value);
593 #endif /* IEEE8021X_EAPOL */
596 static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
598 char field[20], *value;
601 res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
602 if (res < 0 || (size_t) res >= sizeof(field))
604 value = wpa_config_get(ssid, field);
606 fprintf(f, "\t%s=%s\n", field, value);
614 static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
616 char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
619 fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
623 static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
625 char *value = wpa_config_get(ssid, "p2p_client_list");
628 fprintf(f, "\tp2p_client_list=%s\n", value);
633 static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
635 struct psk_list_entry *psk;
636 char hex[32 * 2 + 1];
638 dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
639 wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
640 fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
641 psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
645 #endif /* CONFIG_P2P */
648 static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
652 #define STR(t) write_str(f, #t, ssid)
653 #define INT(t) write_int(f, #t, ssid->t, 0)
654 #define INTe(t) write_int(f, #t, ssid->eap.t, 0)
655 #define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
656 #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
660 write_bssid(f, ssid);
662 write_proto(f, ssid);
663 write_key_mgmt(f, ssid);
664 INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
665 write_pairwise(f, ssid);
666 write_group(f, ssid);
667 write_auth_alg(f, ssid);
671 #ifdef IEEE8021X_EAPOL
674 STR(anonymous_identity);
680 STR(private_key_passwd);
683 STR(altsubject_match);
684 STR(domain_suffix_match);
689 STR(private_key2_passwd);
692 STR(altsubject_match2);
693 STR(domain_suffix_match2);
709 INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
710 #endif /* IEEE8021X_EAPOL */
711 for (i = 0; i < 4; i++)
712 write_wep_key(f, i, ssid);
715 #ifdef IEEE8021X_EAPOL
716 INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
718 INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
720 INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
721 #endif /* IEEE8021X_EAPOL */
724 write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
727 #ifdef CONFIG_IEEE80211W
728 write_int(f, "ieee80211w", ssid->ieee80211w,
729 MGMT_FRAME_PROTECTION_DEFAULT);
730 #endif /* CONFIG_IEEE80211W */
733 write_go_p2p_dev_addr(f, ssid);
734 write_p2p_client_list(f, ssid);
735 write_psk_list(f, ssid);
736 #endif /* CONFIG_P2P */
741 #endif /* CONFIG_MACSEC */
743 INT(update_identifier);
744 #endif /* CONFIG_HS20 */
745 write_int(f, "mac_addr", ssid->mac_addr, -1);
754 static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
759 fprintf(f, "\tpriority=%d\n", cred->priority);
761 fprintf(f, "\tpcsc=%d\n", cred->pcsc);
763 fprintf(f, "\trealm=\"%s\"\n", cred->realm);
765 fprintf(f, "\tusername=\"%s\"\n", cred->username);
766 if (cred->password && cred->ext_password)
767 fprintf(f, "\tpassword=ext:%s\n", cred->password);
768 else if (cred->password)
769 fprintf(f, "\tpassword=\"%s\"\n", cred->password);
771 fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
772 if (cred->client_cert)
773 fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
774 if (cred->private_key)
775 fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
776 if (cred->private_key_passwd)
777 fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
778 cred->private_key_passwd);
780 fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
782 fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
783 for (i = 0; i < cred->num_domain; i++)
784 fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
785 if (cred->domain_suffix_match)
786 fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
787 cred->domain_suffix_match);
788 if (cred->roaming_consortium_len) {
789 fprintf(f, "\troaming_consortium=");
790 for (i = 0; i < cred->roaming_consortium_len; i++)
791 fprintf(f, "%02x", cred->roaming_consortium[i]);
794 if (cred->eap_method) {
796 name = eap_get_name(cred->eap_method[0].vendor,
797 cred->eap_method[0].method);
799 fprintf(f, "\teap=%s\n", name);
802 fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
804 fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
805 if (cred->excluded_ssid) {
807 for (i = 0; i < cred->num_excluded_ssid; i++) {
808 struct excluded_ssid *e = &cred->excluded_ssid[i];
809 fprintf(f, "\texcluded_ssid=");
810 for (j = 0; j < e->ssid_len; j++)
811 fprintf(f, "%02x", e->ssid[j]);
815 if (cred->roaming_partner) {
816 for (i = 0; i < cred->num_roaming_partner; i++) {
817 struct roaming_partner *p = &cred->roaming_partner[i];
818 fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
819 p->fqdn, p->exact_match, p->priority,
823 if (cred->update_identifier)
824 fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
826 if (cred->provisioning_sp)
827 fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
828 if (cred->sp_priority)
829 fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
831 if (cred->min_dl_bandwidth_home)
832 fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
833 cred->min_dl_bandwidth_home);
834 if (cred->min_ul_bandwidth_home)
835 fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
836 cred->min_ul_bandwidth_home);
837 if (cred->min_dl_bandwidth_roaming)
838 fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
839 cred->min_dl_bandwidth_roaming);
840 if (cred->min_ul_bandwidth_roaming)
841 fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
842 cred->min_ul_bandwidth_roaming);
844 if (cred->max_bss_load)
845 fprintf(f, "\tmax_bss_load=%u\n",
849 fprintf(f, "\tocsp=%d\n", cred->ocsp);
851 if (cred->num_req_conn_capab) {
852 for (i = 0; i < cred->num_req_conn_capab; i++) {
855 fprintf(f, "\treq_conn_capab=%u",
856 cred->req_conn_capab_proto[i]);
857 ports = cred->req_conn_capab_port[i];
860 for (j = 0; ports[j] != -1; j++) {
861 fprintf(f, "%s%d", j > 0 ? "," : ":",
869 if (cred->required_roaming_consortium_len) {
870 fprintf(f, "\trequired_roaming_consortium=");
871 for (i = 0; i < cred->required_roaming_consortium_len; i++)
873 cred->required_roaming_consortium[i]);
877 if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
878 fprintf(f, "\tsim_num=%d\n", cred->sim_num);
882 #ifndef CONFIG_NO_CONFIG_BLOBS
883 static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
885 unsigned char *encoded;
887 encoded = base64_encode(blob->data, blob->len, NULL);
891 fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
895 #endif /* CONFIG_NO_CONFIG_BLOBS */
898 static void write_global_bin(FILE *f, const char *field,
899 const struct wpabuf *val)
907 fprintf(f, "%s=", field);
908 pos = wpabuf_head(val);
909 for (i = 0; i < wpabuf_len(val); i++)
910 fprintf(f, "%02X", *pos++);
915 static void wpa_config_write_global(FILE *f, struct wpa_config *config)
917 #ifdef CONFIG_CTRL_IFACE
918 if (config->ctrl_interface)
919 fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
920 if (config->ctrl_interface_group)
921 fprintf(f, "ctrl_interface_group=%s\n",
922 config->ctrl_interface_group);
923 #endif /* CONFIG_CTRL_IFACE */
924 if (config->eapol_version != DEFAULT_EAPOL_VERSION)
925 fprintf(f, "eapol_version=%d\n", config->eapol_version);
926 if (config->ap_scan != DEFAULT_AP_SCAN)
927 fprintf(f, "ap_scan=%d\n", config->ap_scan);
928 if (config->disable_scan_offload)
929 fprintf(f, "disable_scan_offload=%d\n",
930 config->disable_scan_offload);
931 if (config->fast_reauth != DEFAULT_FAST_REAUTH)
932 fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
933 if (config->opensc_engine_path)
934 fprintf(f, "opensc_engine_path=%s\n",
935 config->opensc_engine_path);
936 if (config->pkcs11_engine_path)
937 fprintf(f, "pkcs11_engine_path=%s\n",
938 config->pkcs11_engine_path);
939 if (config->pkcs11_module_path)
940 fprintf(f, "pkcs11_module_path=%s\n",
941 config->pkcs11_module_path);
942 if (config->openssl_ciphers)
943 fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
944 if (config->pcsc_reader)
945 fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
946 if (config->pcsc_pin)
947 fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
948 if (config->driver_param)
949 fprintf(f, "driver_param=%s\n", config->driver_param);
950 if (config->dot11RSNAConfigPMKLifetime)
951 fprintf(f, "dot11RSNAConfigPMKLifetime=%d\n",
952 config->dot11RSNAConfigPMKLifetime);
953 if (config->dot11RSNAConfigPMKReauthThreshold)
954 fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%d\n",
955 config->dot11RSNAConfigPMKReauthThreshold);
956 if (config->dot11RSNAConfigSATimeout)
957 fprintf(f, "dot11RSNAConfigSATimeout=%d\n",
958 config->dot11RSNAConfigSATimeout);
959 if (config->update_config)
960 fprintf(f, "update_config=%d\n", config->update_config);
962 if (!is_nil_uuid(config->uuid)) {
964 uuid_bin2str(config->uuid, buf, sizeof(buf));
965 fprintf(f, "uuid=%s\n", buf);
967 if (config->device_name)
968 fprintf(f, "device_name=%s\n", config->device_name);
969 if (config->manufacturer)
970 fprintf(f, "manufacturer=%s\n", config->manufacturer);
971 if (config->model_name)
972 fprintf(f, "model_name=%s\n", config->model_name);
973 if (config->model_number)
974 fprintf(f, "model_number=%s\n", config->model_number);
975 if (config->serial_number)
976 fprintf(f, "serial_number=%s\n", config->serial_number);
978 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
979 buf = wps_dev_type_bin2str(config->device_type,
981 if (os_strcmp(buf, "0-00000000-0") != 0)
982 fprintf(f, "device_type=%s\n", buf);
984 if (WPA_GET_BE32(config->os_version))
985 fprintf(f, "os_version=%08x\n",
986 WPA_GET_BE32(config->os_version));
987 if (config->config_methods)
988 fprintf(f, "config_methods=%s\n", config->config_methods);
989 if (config->wps_cred_processing)
990 fprintf(f, "wps_cred_processing=%d\n",
991 config->wps_cred_processing);
992 if (config->wps_vendor_ext_m1) {
993 int i, len = wpabuf_len(config->wps_vendor_ext_m1);
994 const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
996 fprintf(f, "wps_vendor_ext_m1=");
997 for (i = 0; i < len; i++)
998 fprintf(f, "%02x", *p++);
1002 #endif /* CONFIG_WPS */
1004 if (config->p2p_listen_reg_class)
1005 fprintf(f, "p2p_listen_reg_class=%u\n",
1006 config->p2p_listen_reg_class);
1007 if (config->p2p_listen_channel)
1008 fprintf(f, "p2p_listen_channel=%u\n",
1009 config->p2p_listen_channel);
1010 if (config->p2p_oper_reg_class)
1011 fprintf(f, "p2p_oper_reg_class=%u\n",
1012 config->p2p_oper_reg_class);
1013 if (config->p2p_oper_channel)
1014 fprintf(f, "p2p_oper_channel=%u\n", config->p2p_oper_channel);
1015 if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1016 fprintf(f, "p2p_go_intent=%u\n", config->p2p_go_intent);
1017 if (config->p2p_ssid_postfix)
1018 fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1019 if (config->persistent_reconnect)
1020 fprintf(f, "persistent_reconnect=%u\n",
1021 config->persistent_reconnect);
1022 if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1023 fprintf(f, "p2p_intra_bss=%u\n", config->p2p_intra_bss);
1024 if (config->p2p_group_idle)
1025 fprintf(f, "p2p_group_idle=%u\n", config->p2p_group_idle);
1026 if (config->p2p_passphrase_len)
1027 fprintf(f, "p2p_passphrase_len=%u\n",
1028 config->p2p_passphrase_len);
1029 if (config->p2p_pref_chan) {
1031 fprintf(f, "p2p_pref_chan=");
1032 for (i = 0; i < config->num_p2p_pref_chan; i++) {
1033 fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1034 config->p2p_pref_chan[i].op_class,
1035 config->p2p_pref_chan[i].chan);
1039 if (config->p2p_no_go_freq.num) {
1040 char *val = freq_range_list_str(&config->p2p_no_go_freq);
1042 fprintf(f, "p2p_no_go_freq=%s\n", val);
1046 if (config->p2p_add_cli_chan)
1047 fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1048 if (config->p2p_optimize_listen_chan !=
1049 DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1050 fprintf(f, "p2p_optimize_listen_chan=%d\n",
1051 config->p2p_optimize_listen_chan);
1052 if (config->p2p_go_ht40)
1053 fprintf(f, "p2p_go_ht40=%u\n", config->p2p_go_ht40);
1054 if (config->p2p_go_vht)
1055 fprintf(f, "p2p_go_vht=%u\n", config->p2p_go_vht);
1056 if (config->p2p_disabled)
1057 fprintf(f, "p2p_disabled=%u\n", config->p2p_disabled);
1058 if (config->p2p_no_group_iface)
1059 fprintf(f, "p2p_no_group_iface=%u\n",
1060 config->p2p_no_group_iface);
1061 if (config->p2p_ignore_shared_freq)
1062 fprintf(f, "p2p_ignore_shared_freq=%u\n",
1063 config->p2p_ignore_shared_freq);
1064 #endif /* CONFIG_P2P */
1065 if (config->country[0] && config->country[1]) {
1066 fprintf(f, "country=%c%c\n",
1067 config->country[0], config->country[1]);
1069 if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1070 fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1071 if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1072 fprintf(f, "bss_expiration_age=%u\n",
1073 config->bss_expiration_age);
1074 if (config->bss_expiration_scan_count !=
1075 DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1076 fprintf(f, "bss_expiration_scan_count=%u\n",
1077 config->bss_expiration_scan_count);
1078 if (config->filter_ssids)
1079 fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1080 if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1081 fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1082 if (config->disassoc_low_ack)
1083 fprintf(f, "disassoc_low_ack=%u\n", config->disassoc_low_ack);
1086 fprintf(f, "hs20=1\n");
1087 #endif /* CONFIG_HS20 */
1088 #ifdef CONFIG_INTERWORKING
1089 if (config->interworking)
1090 fprintf(f, "interworking=%u\n", config->interworking);
1091 if (!is_zero_ether_addr(config->hessid))
1092 fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1093 if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1094 fprintf(f, "access_network_type=%d\n",
1095 config->access_network_type);
1096 #endif /* CONFIG_INTERWORKING */
1097 if (config->pbc_in_m1)
1098 fprintf(f, "pbc_in_m1=%u\n", config->pbc_in_m1);
1099 if (config->wps_nfc_pw_from_config) {
1100 if (config->wps_nfc_dev_pw_id)
1101 fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1102 config->wps_nfc_dev_pw_id);
1103 write_global_bin(f, "wps_nfc_dh_pubkey",
1104 config->wps_nfc_dh_pubkey);
1105 write_global_bin(f, "wps_nfc_dh_privkey",
1106 config->wps_nfc_dh_privkey);
1107 write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1110 if (config->ext_password_backend)
1111 fprintf(f, "ext_password_backend=%s\n",
1112 config->ext_password_backend);
1113 if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1114 fprintf(f, "p2p_go_max_inactivity=%d\n",
1115 config->p2p_go_max_inactivity);
1116 if (config->auto_interworking)
1117 fprintf(f, "auto_interworking=%d\n",
1118 config->auto_interworking);
1120 fprintf(f, "okc=%d\n", config->okc);
1122 fprintf(f, "pmf=%d\n", config->pmf);
1123 if (config->dtim_period)
1124 fprintf(f, "dtim_period=%d\n", config->dtim_period);
1125 if (config->beacon_int)
1126 fprintf(f, "beacon_int=%d\n", config->beacon_int);
1128 if (config->sae_groups) {
1130 fprintf(f, "sae_groups=");
1131 for (i = 0; config->sae_groups[i] >= 0; i++) {
1132 fprintf(f, "%s%d", i > 0 ? " " : "",
1133 config->sae_groups[i]);
1138 if (config->ap_vendor_elements) {
1139 int i, len = wpabuf_len(config->ap_vendor_elements);
1140 const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1142 fprintf(f, "ap_vendor_elements=");
1143 for (i = 0; i < len; i++)
1144 fprintf(f, "%02x", *p++);
1149 if (config->ignore_old_scan_res)
1150 fprintf(f, "ignore_old_scan_res=%d\n",
1151 config->ignore_old_scan_res);
1153 if (config->freq_list && config->freq_list[0]) {
1155 fprintf(f, "freq_list=");
1156 for (i = 0; config->freq_list[i]; i++) {
1157 fprintf(f, "%s%u", i > 0 ? " " : "",
1158 config->freq_list[i]);
1162 if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1163 fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1165 if (config->sched_scan_interval)
1166 fprintf(f, "sched_scan_interval=%u\n",
1167 config->sched_scan_interval);
1169 if (config->external_sim)
1170 fprintf(f, "external_sim=%d\n", config->external_sim);
1172 if (config->tdls_external_control)
1173 fprintf(f, "tdls_external_control=%d\n",
1174 config->tdls_external_control);
1176 if (config->wowlan_triggers)
1177 fprintf(f, "wowlan_triggers=%s\n",
1178 config->wowlan_triggers);
1181 fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1183 if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1184 fprintf(f, "p2p_search_delay=%u\n",
1185 config->p2p_search_delay);
1187 if (config->mac_addr)
1188 fprintf(f, "mac_addr=%d\n", config->mac_addr);
1190 if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1191 fprintf(f, "rand_addr_lifetime=%u\n",
1192 config->rand_addr_lifetime);
1194 if (config->preassoc_mac_addr)
1195 fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1197 if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1198 fprintf(f, "key_mgmt_offload=%u\n", config->key_mgmt_offload);
1200 if (config->user_mpm != DEFAULT_USER_MPM)
1201 fprintf(f, "user_mpm=%d\n", config->user_mpm);
1204 #endif /* CONFIG_NO_CONFIG_WRITE */
1207 int wpa_config_write(const char *name, struct wpa_config *config)
1209 #ifndef CONFIG_NO_CONFIG_WRITE
1211 struct wpa_ssid *ssid;
1212 struct wpa_cred *cred;
1213 #ifndef CONFIG_NO_CONFIG_BLOBS
1214 struct wpa_config_blob *blob;
1215 #endif /* CONFIG_NO_CONFIG_BLOBS */
1218 wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1220 f = fopen(name, "w");
1222 wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1226 wpa_config_write_global(f, config);
1228 for (cred = config->cred; cred; cred = cred->next) {
1229 if (cred->temporary)
1231 fprintf(f, "\ncred={\n");
1232 wpa_config_write_cred(f, cred);
1236 for (ssid = config->ssid; ssid; ssid = ssid->next) {
1237 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1238 continue; /* do not save temporary networks */
1239 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1241 continue; /* do not save invalid network */
1242 fprintf(f, "\nnetwork={\n");
1243 wpa_config_write_network(f, ssid);
1247 #ifndef CONFIG_NO_CONFIG_BLOBS
1248 for (blob = config->blobs; blob; blob = blob->next) {
1249 ret = wpa_config_write_blob(f, blob);
1253 #endif /* CONFIG_NO_CONFIG_BLOBS */
1257 wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1258 name, ret ? "un" : "");
1260 #else /* CONFIG_NO_CONFIG_WRITE */
1262 #endif /* CONFIG_NO_CONFIG_WRITE */