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.
23 #include "eap_peer/eap_methods.h"
24 #include "eap_peer/eap.h"
27 static int newline_terminated(const char *buf, size_t buflen)
29 size_t len = os_strlen(buf);
32 if (len == buflen - 1 && buf[buflen - 1] != '\r' &&
39 static void skip_line_end(FILE *stream)
42 while (fgets(buf, sizeof(buf), stream)) {
43 buf[sizeof(buf) - 1] = '\0';
44 if (newline_terminated(buf, sizeof(buf)))
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.
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.
64 static char * wpa_config_get_line(char *s, int size, FILE *stream, int *line,
67 char *pos, *end, *sstart;
69 while (fgets(s, size, stream)) {
72 if (!newline_terminated(s, size)) {
74 * The line was truncated - skip rest of it to avoid
75 * confusing error messages.
77 wpa_printf(MSG_INFO, "Long line in configuration file "
79 skip_line_end(stream);
83 /* Skip white space from the beginning of line. */
84 while (*pos == ' ' || *pos == '\t' || *pos == '\r')
87 /* Skip comment lines and empty lines */
88 if (*pos == '#' || *pos == '\n' || *pos == '\0')
92 * Remove # comments unless they are within a double quoted
95 sstart = os_strchr(pos, '"');
97 sstart = os_strrchr(sstart + 1, '"');
100 end = os_strchr(sstart, '#');
104 end = pos + os_strlen(pos) - 1;
106 /* Remove trailing white space. */
108 (*end == '\n' || *end == ' ' || *end == '\t' ||
126 static int wpa_config_validate_network(struct wpa_ssid *ssid, int line)
130 if (ssid->passphrase) {
132 wpa_printf(MSG_ERROR, "Line %d: both PSK and "
133 "passphrase configured.", line);
136 wpa_config_update_psk(ssid);
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 "
146 ssid->group_cipher &= ~WPA_CIPHER_CCMP;
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",
162 static struct wpa_ssid * wpa_config_read_network(FILE *f, int *line, int id)
164 struct wpa_ssid *ssid;
165 int errors = 0, end = 0;
166 char buf[2000], *pos, *pos2;
168 wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new network block",
170 ssid = os_zalloc(sizeof(*ssid));
173 dl_list_init(&ssid->psk_list);
176 wpa_config_set_network_defaults(ssid);
178 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
179 if (os_strcmp(pos, "}") == 0) {
184 pos2 = os_strchr(pos, '=');
186 wpa_printf(MSG_ERROR, "Line %d: Invalid SSID line "
187 "'%s'.", *line, pos);
194 if (os_strchr(pos2 + 1, '"') == NULL) {
195 wpa_printf(MSG_ERROR, "Line %d: invalid "
196 "quotation '%s'.", *line, pos2);
202 if (wpa_config_set(ssid, pos, pos2, *line) < 0)
207 wpa_printf(MSG_ERROR, "Line %d: network block was not "
208 "terminated properly.", *line);
212 errors += wpa_config_validate_network(ssid, *line);
215 wpa_config_free_ssid(ssid);
223 static struct wpa_cred * wpa_config_read_cred(FILE *f, int *line, int id)
225 struct wpa_cred *cred;
226 int errors = 0, end = 0;
227 char buf[256], *pos, *pos2;
229 wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new cred block", *line);
230 cred = os_zalloc(sizeof(*cred));
234 cred->sim_num = DEFAULT_USER_SELECTED_SIM;
236 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
237 if (os_strcmp(pos, "}") == 0) {
242 pos2 = os_strchr(pos, '=');
244 wpa_printf(MSG_ERROR, "Line %d: Invalid cred line "
245 "'%s'.", *line, pos);
252 if (os_strchr(pos2 + 1, '"') == NULL) {
253 wpa_printf(MSG_ERROR, "Line %d: invalid "
254 "quotation '%s'.", *line, pos2);
260 if (wpa_config_set_cred(cred, pos, pos2, *line) < 0)
265 wpa_printf(MSG_ERROR, "Line %d: cred block was not "
266 "terminated properly.", *line);
271 wpa_config_free_cred(cred);
279 #ifndef CONFIG_NO_CONFIG_BLOBS
280 static struct wpa_config_blob * wpa_config_read_blob(FILE *f, int *line,
283 struct wpa_config_blob *blob;
285 unsigned char *encoded = NULL, *nencoded;
287 size_t encoded_len = 0, len;
289 wpa_printf(MSG_MSGDUMP, "Line: %d - start of a new named blob '%s'",
292 while (wpa_config_get_line(buf, sizeof(buf), f, line, &pos)) {
293 if (os_strcmp(pos, "}") == 0) {
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 "
307 os_memcpy(encoded + encoded_len, pos, len);
312 wpa_printf(MSG_ERROR, "Line %d: blob was not terminated "
318 blob = os_zalloc(sizeof(*blob));
323 blob->name = os_strdup(name);
324 blob->data = base64_decode(encoded, encoded_len, &blob->len);
327 if (blob->name == NULL || blob->data == NULL) {
328 wpa_config_free_blob(blob);
336 static int wpa_config_process_blob(struct wpa_config *config, FILE *f,
337 int *line, char *bname)
340 struct wpa_config_blob *blob;
342 name_end = os_strchr(bname, '=');
343 if (name_end == NULL) {
344 wpa_printf(MSG_ERROR, "Line %d: no blob name terminator",
350 blob = wpa_config_read_blob(f, line, bname);
352 wpa_printf(MSG_ERROR, "Line %d: failed to read blob %s",
356 wpa_config_set_blob(config, blob);
359 #endif /* CONFIG_NO_CONFIG_BLOBS */
362 struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp)
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;
378 config = wpa_config_alloc_empty(NULL, NULL);
379 if (config == NULL) {
380 wpa_printf(MSG_ERROR, "Failed to allocate config file "
384 tail = head = config->ssid;
385 while (tail && tail->next)
387 cred_tail = cred_head = config->cred;
388 while (cred_tail && cred_tail->next)
389 cred_tail = cred_tail->next;
391 wpa_printf(MSG_DEBUG, "Reading configuration file '%s'", name);
392 f = fopen(name, "r");
394 wpa_printf(MSG_ERROR, "Failed to open config file '%s', "
395 "error: %s", name, strerror(errno));
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++);
404 wpa_printf(MSG_ERROR, "Line %d: failed to "
405 "parse network block.", line);
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.",
422 } else if (os_strcmp(pos, "cred={") == 0) {
423 cred = wpa_config_read_cred(f, &line, cred_id++);
425 wpa_printf(MSG_ERROR, "Line %d: failed to "
426 "parse cred block.", line);
430 if (cred_head == NULL) {
431 cred_head = cred_tail = cred;
433 cred_tail->next = cred;
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)
440 wpa_printf(MSG_ERROR, "Line %d: failed to "
441 "process blob.", line);
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);
457 wpa_config_debug_dump_networks(config);
458 config->cred = cred_head;
460 #ifndef WPA_IGNORE_CONFIG_ERRORS
462 wpa_config_free(config);
466 #endif /* WPA_IGNORE_CONFIG_ERRORS */
472 #ifndef CONFIG_NO_CONFIG_WRITE
474 static void write_str(FILE *f, const char *field, struct wpa_ssid *ssid)
476 char *value = wpa_config_get(ssid, field);
479 fprintf(f, "\t%s=%s\n", field, value);
484 static void write_int(FILE *f, const char *field, int value, int def)
488 fprintf(f, "\t%s=%d\n", field, value);
492 static void write_bssid(FILE *f, struct wpa_ssid *ssid)
494 char *value = wpa_config_get(ssid, "bssid");
497 fprintf(f, "\tbssid=%s\n", value);
502 static void write_psk(FILE *f, struct wpa_ssid *ssid)
506 if (ssid->mem_only_psk)
509 value = wpa_config_get(ssid, "psk");
512 fprintf(f, "\tpsk=%s\n", value);
517 static void write_proto(FILE *f, struct wpa_ssid *ssid)
521 if (ssid->proto == DEFAULT_PROTO)
524 value = wpa_config_get(ssid, "proto");
528 fprintf(f, "\tproto=%s\n", value);
533 static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
537 if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
540 value = wpa_config_get(ssid, "key_mgmt");
544 fprintf(f, "\tkey_mgmt=%s\n", value);
549 static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
553 if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
556 value = wpa_config_get(ssid, "pairwise");
560 fprintf(f, "\tpairwise=%s\n", value);
565 static void write_group(FILE *f, struct wpa_ssid *ssid)
569 if (ssid->group_cipher == DEFAULT_GROUP)
572 value = wpa_config_get(ssid, "group");
576 fprintf(f, "\tgroup=%s\n", value);
581 static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
585 if (ssid->auth_alg == 0)
588 value = wpa_config_get(ssid, "auth_alg");
592 fprintf(f, "\tauth_alg=%s\n", value);
597 #ifdef IEEE8021X_EAPOL
598 static void write_eap(FILE *f, struct wpa_ssid *ssid)
602 value = wpa_config_get(ssid, "eap");
607 fprintf(f, "\teap=%s\n", value);
610 #endif /* IEEE8021X_EAPOL */
613 static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
615 char field[20], *value;
618 res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
619 if (os_snprintf_error(sizeof(field), res))
621 value = wpa_config_get(ssid, field);
623 fprintf(f, "\t%s=%s\n", field, value);
631 static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
633 char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
636 fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
640 static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
642 char *value = wpa_config_get(ssid, "p2p_client_list");
645 fprintf(f, "\tp2p_client_list=%s\n", value);
650 static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
652 struct psk_list_entry *psk;
653 char hex[32 * 2 + 1];
655 dl_list_for_each(psk, &ssid->psk_list, struct psk_list_entry, list) {
656 wpa_snprintf_hex(hex, sizeof(hex), psk->psk, sizeof(psk->psk));
657 fprintf(f, "\tpsk_list=%s" MACSTR "-%s\n",
658 psk->p2p ? "P2P-" : "", MAC2STR(psk->addr), hex);
662 #endif /* CONFIG_P2P */
665 static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
669 #define STR(t) write_str(f, #t, ssid)
670 #define INT(t) write_int(f, #t, ssid->t, 0)
671 #define INTe(t) write_int(f, #t, ssid->eap.t, 0)
672 #define INT_DEF(t, def) write_int(f, #t, ssid->t, def)
673 #define INT_DEFe(t, def) write_int(f, #t, ssid->eap.t, def)
677 write_bssid(f, ssid);
678 write_str(f, "bssid_blacklist", ssid);
679 write_str(f, "bssid_whitelist", ssid);
682 write_proto(f, ssid);
683 write_key_mgmt(f, ssid);
684 INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
685 write_pairwise(f, ssid);
686 write_group(f, ssid);
687 write_auth_alg(f, ssid);
691 #ifdef IEEE8021X_EAPOL
694 STR(anonymous_identity);
700 STR(private_key_passwd);
703 STR(altsubject_match);
704 STR(domain_suffix_match);
710 STR(private_key2_passwd);
713 STR(altsubject_match2);
714 STR(domain_suffix_match2);
731 INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
732 STR(openssl_ciphers);
734 #endif /* IEEE8021X_EAPOL */
735 for (i = 0; i < 4; i++)
736 write_wep_key(f, i, ssid);
739 #ifdef IEEE8021X_EAPOL
740 INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
742 INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
744 INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
745 #endif /* IEEE8021X_EAPOL */
750 write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
754 #ifdef CONFIG_IEEE80211W
755 write_int(f, "ieee80211w", ssid->ieee80211w,
756 MGMT_FRAME_PROTECTION_DEFAULT);
757 #endif /* CONFIG_IEEE80211W */
760 write_go_p2p_dev_addr(f, ssid);
761 write_p2p_client_list(f, ssid);
762 write_psk_list(f, ssid);
763 #endif /* CONFIG_P2P */
764 INT(ap_max_inactivity);
769 #endif /* CONFIG_MACSEC */
771 INT(update_identifier);
772 #endif /* CONFIG_HS20 */
773 write_int(f, "mac_addr", ssid->mac_addr, -1);
775 STR(mesh_basic_rates);
776 INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
777 INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
778 INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
779 INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
780 #endif /* CONFIG_MESH */
782 INT(ignore_broadcast_ssid);
783 #ifdef CONFIG_HT_OVERRIDES
784 INT_DEF(disable_ht, DEFAULT_DISABLE_HT);
785 INT_DEF(disable_ht40, DEFAULT_DISABLE_HT40);
786 INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
787 INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
788 INT(ht40_intolerant);
789 INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
790 INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
791 INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);
793 #endif /* CONFIG_HT_OVERRIDES */
794 #ifdef CONFIG_VHT_OVERRIDES
798 INT_DEF(vht_rx_mcs_nss_1, -1);
799 INT_DEF(vht_rx_mcs_nss_2, -1);
800 INT_DEF(vht_rx_mcs_nss_3, -1);
801 INT_DEF(vht_rx_mcs_nss_4, -1);
802 INT_DEF(vht_rx_mcs_nss_5, -1);
803 INT_DEF(vht_rx_mcs_nss_6, -1);
804 INT_DEF(vht_rx_mcs_nss_7, -1);
805 INT_DEF(vht_rx_mcs_nss_8, -1);
806 INT_DEF(vht_tx_mcs_nss_1, -1);
807 INT_DEF(vht_tx_mcs_nss_2, -1);
808 INT_DEF(vht_tx_mcs_nss_3, -1);
809 INT_DEF(vht_tx_mcs_nss_4, -1);
810 INT_DEF(vht_tx_mcs_nss_5, -1);
811 INT_DEF(vht_tx_mcs_nss_6, -1);
812 INT_DEF(vht_tx_mcs_nss_7, -1);
813 INT_DEF(vht_tx_mcs_nss_8, -1);
814 #endif /* CONFIG_VHT_OVERRIDES */
822 static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
827 fprintf(f, "\tpriority=%d\n", cred->priority);
829 fprintf(f, "\tpcsc=%d\n", cred->pcsc);
831 fprintf(f, "\trealm=\"%s\"\n", cred->realm);
833 fprintf(f, "\tusername=\"%s\"\n", cred->username);
834 if (cred->password && cred->ext_password)
835 fprintf(f, "\tpassword=ext:%s\n", cred->password);
836 else if (cred->password)
837 fprintf(f, "\tpassword=\"%s\"\n", cred->password);
839 fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
840 if (cred->client_cert)
841 fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
842 if (cred->private_key)
843 fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
844 if (cred->private_key_passwd)
845 fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
846 cred->private_key_passwd);
848 fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
850 fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
851 for (i = 0; i < cred->num_domain; i++)
852 fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
853 if (cred->domain_suffix_match)
854 fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
855 cred->domain_suffix_match);
856 if (cred->roaming_consortium_len) {
857 fprintf(f, "\troaming_consortium=");
858 for (i = 0; i < cred->roaming_consortium_len; i++)
859 fprintf(f, "%02x", cred->roaming_consortium[i]);
862 if (cred->eap_method) {
864 name = eap_get_name(cred->eap_method[0].vendor,
865 cred->eap_method[0].method);
867 fprintf(f, "\teap=%s\n", name);
870 fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
872 fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
873 if (cred->excluded_ssid) {
875 for (i = 0; i < cred->num_excluded_ssid; i++) {
876 struct excluded_ssid *e = &cred->excluded_ssid[i];
877 fprintf(f, "\texcluded_ssid=");
878 for (j = 0; j < e->ssid_len; j++)
879 fprintf(f, "%02x", e->ssid[j]);
883 if (cred->roaming_partner) {
884 for (i = 0; i < cred->num_roaming_partner; i++) {
885 struct roaming_partner *p = &cred->roaming_partner[i];
886 fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
887 p->fqdn, p->exact_match, p->priority,
891 if (cred->update_identifier)
892 fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
894 if (cred->provisioning_sp)
895 fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
896 if (cred->sp_priority)
897 fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
899 if (cred->min_dl_bandwidth_home)
900 fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
901 cred->min_dl_bandwidth_home);
902 if (cred->min_ul_bandwidth_home)
903 fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
904 cred->min_ul_bandwidth_home);
905 if (cred->min_dl_bandwidth_roaming)
906 fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
907 cred->min_dl_bandwidth_roaming);
908 if (cred->min_ul_bandwidth_roaming)
909 fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
910 cred->min_ul_bandwidth_roaming);
912 if (cred->max_bss_load)
913 fprintf(f, "\tmax_bss_load=%u\n",
917 fprintf(f, "\tocsp=%d\n", cred->ocsp);
919 if (cred->num_req_conn_capab) {
920 for (i = 0; i < cred->num_req_conn_capab; i++) {
923 fprintf(f, "\treq_conn_capab=%u",
924 cred->req_conn_capab_proto[i]);
925 ports = cred->req_conn_capab_port[i];
928 for (j = 0; ports[j] != -1; j++) {
929 fprintf(f, "%s%d", j > 0 ? "," : ":",
937 if (cred->required_roaming_consortium_len) {
938 fprintf(f, "\trequired_roaming_consortium=");
939 for (i = 0; i < cred->required_roaming_consortium_len; i++)
941 cred->required_roaming_consortium[i]);
945 if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
946 fprintf(f, "\tsim_num=%d\n", cred->sim_num);
950 #ifndef CONFIG_NO_CONFIG_BLOBS
951 static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
953 unsigned char *encoded;
955 encoded = base64_encode(blob->data, blob->len, NULL);
959 fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
963 #endif /* CONFIG_NO_CONFIG_BLOBS */
966 static void write_global_bin(FILE *f, const char *field,
967 const struct wpabuf *val)
975 fprintf(f, "%s=", field);
976 pos = wpabuf_head(val);
977 for (i = 0; i < wpabuf_len(val); i++)
978 fprintf(f, "%02X", *pos++);
983 static void wpa_config_write_global(FILE *f, struct wpa_config *config)
985 #ifdef CONFIG_CTRL_IFACE
986 if (config->ctrl_interface)
987 fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
988 if (config->ctrl_interface_group)
989 fprintf(f, "ctrl_interface_group=%s\n",
990 config->ctrl_interface_group);
991 #endif /* CONFIG_CTRL_IFACE */
992 if (config->eapol_version != DEFAULT_EAPOL_VERSION)
993 fprintf(f, "eapol_version=%d\n", config->eapol_version);
994 if (config->ap_scan != DEFAULT_AP_SCAN)
995 fprintf(f, "ap_scan=%d\n", config->ap_scan);
996 if (config->disable_scan_offload)
997 fprintf(f, "disable_scan_offload=%d\n",
998 config->disable_scan_offload);
999 if (config->fast_reauth != DEFAULT_FAST_REAUTH)
1000 fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
1001 if (config->opensc_engine_path)
1002 fprintf(f, "opensc_engine_path=%s\n",
1003 config->opensc_engine_path);
1004 if (config->pkcs11_engine_path)
1005 fprintf(f, "pkcs11_engine_path=%s\n",
1006 config->pkcs11_engine_path);
1007 if (config->pkcs11_module_path)
1008 fprintf(f, "pkcs11_module_path=%s\n",
1009 config->pkcs11_module_path);
1010 if (config->openssl_ciphers)
1011 fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
1012 if (config->pcsc_reader)
1013 fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
1014 if (config->pcsc_pin)
1015 fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
1016 if (config->driver_param)
1017 fprintf(f, "driver_param=%s\n", config->driver_param);
1018 if (config->dot11RSNAConfigPMKLifetime)
1019 fprintf(f, "dot11RSNAConfigPMKLifetime=%u\n",
1020 config->dot11RSNAConfigPMKLifetime);
1021 if (config->dot11RSNAConfigPMKReauthThreshold)
1022 fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%u\n",
1023 config->dot11RSNAConfigPMKReauthThreshold);
1024 if (config->dot11RSNAConfigSATimeout)
1025 fprintf(f, "dot11RSNAConfigSATimeout=%u\n",
1026 config->dot11RSNAConfigSATimeout);
1027 if (config->update_config)
1028 fprintf(f, "update_config=%d\n", config->update_config);
1030 if (!is_nil_uuid(config->uuid)) {
1032 uuid_bin2str(config->uuid, buf, sizeof(buf));
1033 fprintf(f, "uuid=%s\n", buf);
1035 if (config->device_name)
1036 fprintf(f, "device_name=%s\n", config->device_name);
1037 if (config->manufacturer)
1038 fprintf(f, "manufacturer=%s\n", config->manufacturer);
1039 if (config->model_name)
1040 fprintf(f, "model_name=%s\n", config->model_name);
1041 if (config->model_number)
1042 fprintf(f, "model_number=%s\n", config->model_number);
1043 if (config->serial_number)
1044 fprintf(f, "serial_number=%s\n", config->serial_number);
1046 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1047 buf = wps_dev_type_bin2str(config->device_type,
1048 _buf, sizeof(_buf));
1049 if (os_strcmp(buf, "0-00000000-0") != 0)
1050 fprintf(f, "device_type=%s\n", buf);
1052 if (WPA_GET_BE32(config->os_version))
1053 fprintf(f, "os_version=%08x\n",
1054 WPA_GET_BE32(config->os_version));
1055 if (config->config_methods)
1056 fprintf(f, "config_methods=%s\n", config->config_methods);
1057 if (config->wps_cred_processing)
1058 fprintf(f, "wps_cred_processing=%d\n",
1059 config->wps_cred_processing);
1060 if (config->wps_vendor_ext_m1) {
1061 int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1062 const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1064 fprintf(f, "wps_vendor_ext_m1=");
1065 for (i = 0; i < len; i++)
1066 fprintf(f, "%02x", *p++);
1070 #endif /* CONFIG_WPS */
1072 if (config->p2p_listen_reg_class)
1073 fprintf(f, "p2p_listen_reg_class=%d\n",
1074 config->p2p_listen_reg_class);
1075 if (config->p2p_listen_channel)
1076 fprintf(f, "p2p_listen_channel=%d\n",
1077 config->p2p_listen_channel);
1078 if (config->p2p_oper_reg_class)
1079 fprintf(f, "p2p_oper_reg_class=%d\n",
1080 config->p2p_oper_reg_class);
1081 if (config->p2p_oper_channel)
1082 fprintf(f, "p2p_oper_channel=%d\n", config->p2p_oper_channel);
1083 if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1084 fprintf(f, "p2p_go_intent=%d\n", config->p2p_go_intent);
1085 if (config->p2p_ssid_postfix)
1086 fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1087 if (config->persistent_reconnect)
1088 fprintf(f, "persistent_reconnect=%d\n",
1089 config->persistent_reconnect);
1090 if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1091 fprintf(f, "p2p_intra_bss=%d\n", config->p2p_intra_bss);
1092 if (config->p2p_group_idle)
1093 fprintf(f, "p2p_group_idle=%d\n", config->p2p_group_idle);
1094 if (config->p2p_passphrase_len)
1095 fprintf(f, "p2p_passphrase_len=%u\n",
1096 config->p2p_passphrase_len);
1097 if (config->p2p_pref_chan) {
1099 fprintf(f, "p2p_pref_chan=");
1100 for (i = 0; i < config->num_p2p_pref_chan; i++) {
1101 fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1102 config->p2p_pref_chan[i].op_class,
1103 config->p2p_pref_chan[i].chan);
1107 if (config->p2p_no_go_freq.num) {
1108 char *val = freq_range_list_str(&config->p2p_no_go_freq);
1110 fprintf(f, "p2p_no_go_freq=%s\n", val);
1114 if (config->p2p_add_cli_chan)
1115 fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1116 if (config->p2p_optimize_listen_chan !=
1117 DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1118 fprintf(f, "p2p_optimize_listen_chan=%d\n",
1119 config->p2p_optimize_listen_chan);
1120 if (config->p2p_go_ht40)
1121 fprintf(f, "p2p_go_ht40=%d\n", config->p2p_go_ht40);
1122 if (config->p2p_go_vht)
1123 fprintf(f, "p2p_go_vht=%d\n", config->p2p_go_vht);
1124 if (config->p2p_go_ctwindow != DEFAULT_P2P_GO_CTWINDOW)
1125 fprintf(f, "p2p_go_ctwindow=%d\n", config->p2p_go_ctwindow);
1126 if (config->p2p_disabled)
1127 fprintf(f, "p2p_disabled=%d\n", config->p2p_disabled);
1128 if (config->p2p_no_group_iface)
1129 fprintf(f, "p2p_no_group_iface=%d\n",
1130 config->p2p_no_group_iface);
1131 if (config->p2p_ignore_shared_freq)
1132 fprintf(f, "p2p_ignore_shared_freq=%d\n",
1133 config->p2p_ignore_shared_freq);
1134 if (config->p2p_cli_probe)
1135 fprintf(f, "p2p_cli_probe=%d\n", config->p2p_cli_probe);
1136 if (config->p2p_go_freq_change_policy != DEFAULT_P2P_GO_FREQ_MOVE)
1137 fprintf(f, "p2p_go_freq_change_policy=%u\n",
1138 config->p2p_go_freq_change_policy);
1139 #endif /* CONFIG_P2P */
1140 if (config->country[0] && config->country[1]) {
1141 fprintf(f, "country=%c%c\n",
1142 config->country[0], config->country[1]);
1144 if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1145 fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1146 if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1147 fprintf(f, "bss_expiration_age=%u\n",
1148 config->bss_expiration_age);
1149 if (config->bss_expiration_scan_count !=
1150 DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1151 fprintf(f, "bss_expiration_scan_count=%u\n",
1152 config->bss_expiration_scan_count);
1153 if (config->filter_ssids)
1154 fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1155 if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1156 fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1157 if (config->disassoc_low_ack)
1158 fprintf(f, "disassoc_low_ack=%d\n", config->disassoc_low_ack);
1161 fprintf(f, "hs20=1\n");
1162 #endif /* CONFIG_HS20 */
1163 #ifdef CONFIG_INTERWORKING
1164 if (config->interworking)
1165 fprintf(f, "interworking=%d\n", config->interworking);
1166 if (!is_zero_ether_addr(config->hessid))
1167 fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1168 if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1169 fprintf(f, "access_network_type=%d\n",
1170 config->access_network_type);
1171 #endif /* CONFIG_INTERWORKING */
1172 if (config->pbc_in_m1)
1173 fprintf(f, "pbc_in_m1=%d\n", config->pbc_in_m1);
1174 if (config->wps_nfc_pw_from_config) {
1175 if (config->wps_nfc_dev_pw_id)
1176 fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1177 config->wps_nfc_dev_pw_id);
1178 write_global_bin(f, "wps_nfc_dh_pubkey",
1179 config->wps_nfc_dh_pubkey);
1180 write_global_bin(f, "wps_nfc_dh_privkey",
1181 config->wps_nfc_dh_privkey);
1182 write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1185 if (config->ext_password_backend)
1186 fprintf(f, "ext_password_backend=%s\n",
1187 config->ext_password_backend);
1188 if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1189 fprintf(f, "p2p_go_max_inactivity=%d\n",
1190 config->p2p_go_max_inactivity);
1191 if (config->auto_interworking)
1192 fprintf(f, "auto_interworking=%d\n",
1193 config->auto_interworking);
1195 fprintf(f, "okc=%d\n", config->okc);
1197 fprintf(f, "pmf=%d\n", config->pmf);
1198 if (config->dtim_period)
1199 fprintf(f, "dtim_period=%d\n", config->dtim_period);
1200 if (config->beacon_int)
1201 fprintf(f, "beacon_int=%d\n", config->beacon_int);
1203 if (config->sae_groups) {
1205 fprintf(f, "sae_groups=");
1206 for (i = 0; config->sae_groups[i] >= 0; i++) {
1207 fprintf(f, "%s%d", i > 0 ? " " : "",
1208 config->sae_groups[i]);
1213 if (config->ap_vendor_elements) {
1214 int i, len = wpabuf_len(config->ap_vendor_elements);
1215 const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1217 fprintf(f, "ap_vendor_elements=");
1218 for (i = 0; i < len; i++)
1219 fprintf(f, "%02x", *p++);
1224 if (config->ignore_old_scan_res)
1225 fprintf(f, "ignore_old_scan_res=%d\n",
1226 config->ignore_old_scan_res);
1228 if (config->freq_list && config->freq_list[0]) {
1230 fprintf(f, "freq_list=");
1231 for (i = 0; config->freq_list[i]; i++) {
1232 fprintf(f, "%s%d", i > 0 ? " " : "",
1233 config->freq_list[i]);
1237 if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1238 fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1240 if (config->sched_scan_interval)
1241 fprintf(f, "sched_scan_interval=%u\n",
1242 config->sched_scan_interval);
1244 if (config->external_sim)
1245 fprintf(f, "external_sim=%d\n", config->external_sim);
1247 if (config->tdls_external_control)
1248 fprintf(f, "tdls_external_control=%d\n",
1249 config->tdls_external_control);
1251 if (config->wowlan_triggers)
1252 fprintf(f, "wowlan_triggers=%s\n",
1253 config->wowlan_triggers);
1256 fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1258 if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1259 fprintf(f, "p2p_search_delay=%u\n",
1260 config->p2p_search_delay);
1262 if (config->mac_addr)
1263 fprintf(f, "mac_addr=%d\n", config->mac_addr);
1265 if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1266 fprintf(f, "rand_addr_lifetime=%u\n",
1267 config->rand_addr_lifetime);
1269 if (config->preassoc_mac_addr)
1270 fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1272 if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1273 fprintf(f, "key_mgmt_offload=%d\n", config->key_mgmt_offload);
1275 if (config->user_mpm != DEFAULT_USER_MPM)
1276 fprintf(f, "user_mpm=%d\n", config->user_mpm);
1278 if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1279 fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1281 if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1282 fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1284 if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1285 fprintf(f, "mesh_max_inactivity=%d\n",
1286 config->mesh_max_inactivity);
1288 if (config->dot11RSNASAERetransPeriod !=
1289 DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD)
1290 fprintf(f, "dot11RSNASAERetransPeriod=%d\n",
1291 config->dot11RSNASAERetransPeriod);
1293 if (config->passive_scan)
1294 fprintf(f, "passive_scan=%d\n", config->passive_scan);
1296 if (config->reassoc_same_bss_optim)
1297 fprintf(f, "reassoc_same_bss_optim=%d\n",
1298 config->reassoc_same_bss_optim);
1300 if (config->wps_priority)
1301 fprintf(f, "wps_priority=%d\n", config->wps_priority);
1304 #endif /* CONFIG_NO_CONFIG_WRITE */
1307 int wpa_config_write(const char *name, struct wpa_config *config)
1309 #ifndef CONFIG_NO_CONFIG_WRITE
1311 struct wpa_ssid *ssid;
1312 struct wpa_cred *cred;
1313 #ifndef CONFIG_NO_CONFIG_BLOBS
1314 struct wpa_config_blob *blob;
1315 #endif /* CONFIG_NO_CONFIG_BLOBS */
1317 const char *orig_name = name;
1318 int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1319 char *tmp_name = os_malloc(tmp_len);
1322 os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1326 wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1328 f = fopen(name, "w");
1330 wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1335 wpa_config_write_global(f, config);
1337 for (cred = config->cred; cred; cred = cred->next) {
1338 if (cred->temporary)
1340 fprintf(f, "\ncred={\n");
1341 wpa_config_write_cred(f, cred);
1345 for (ssid = config->ssid; ssid; ssid = ssid->next) {
1346 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1347 continue; /* do not save temporary networks */
1348 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1350 continue; /* do not save invalid network */
1351 fprintf(f, "\nnetwork={\n");
1352 wpa_config_write_network(f, ssid);
1356 #ifndef CONFIG_NO_CONFIG_BLOBS
1357 for (blob = config->blobs; blob; blob = blob->next) {
1358 ret = wpa_config_write_blob(f, blob);
1362 #endif /* CONFIG_NO_CONFIG_BLOBS */
1372 chmod_ret = chmod(tmp_name,
1373 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1374 #endif /* ANDROID */
1375 if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1381 wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1382 orig_name, ret ? "un" : "");
1384 #else /* CONFIG_NO_CONFIG_WRITE */
1386 #endif /* CONFIG_NO_CONFIG_WRITE */