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)
504 char *value = wpa_config_get(ssid, "psk");
507 fprintf(f, "\tpsk=%s\n", value);
512 static void write_proto(FILE *f, struct wpa_ssid *ssid)
516 if (ssid->proto == DEFAULT_PROTO)
519 value = wpa_config_get(ssid, "proto");
523 fprintf(f, "\tproto=%s\n", value);
528 static void write_key_mgmt(FILE *f, struct wpa_ssid *ssid)
532 if (ssid->key_mgmt == DEFAULT_KEY_MGMT)
535 value = wpa_config_get(ssid, "key_mgmt");
539 fprintf(f, "\tkey_mgmt=%s\n", value);
544 static void write_pairwise(FILE *f, struct wpa_ssid *ssid)
548 if (ssid->pairwise_cipher == DEFAULT_PAIRWISE)
551 value = wpa_config_get(ssid, "pairwise");
555 fprintf(f, "\tpairwise=%s\n", value);
560 static void write_group(FILE *f, struct wpa_ssid *ssid)
564 if (ssid->group_cipher == DEFAULT_GROUP)
567 value = wpa_config_get(ssid, "group");
571 fprintf(f, "\tgroup=%s\n", value);
576 static void write_auth_alg(FILE *f, struct wpa_ssid *ssid)
580 if (ssid->auth_alg == 0)
583 value = wpa_config_get(ssid, "auth_alg");
587 fprintf(f, "\tauth_alg=%s\n", value);
592 #ifdef IEEE8021X_EAPOL
593 static void write_eap(FILE *f, struct wpa_ssid *ssid)
597 value = wpa_config_get(ssid, "eap");
602 fprintf(f, "\teap=%s\n", value);
605 #endif /* IEEE8021X_EAPOL */
608 static void write_wep_key(FILE *f, int idx, struct wpa_ssid *ssid)
610 char field[20], *value;
613 res = os_snprintf(field, sizeof(field), "wep_key%d", idx);
614 if (os_snprintf_error(sizeof(field), res))
616 value = wpa_config_get(ssid, field);
618 fprintf(f, "\t%s=%s\n", field, value);
626 static void write_go_p2p_dev_addr(FILE *f, struct wpa_ssid *ssid)
628 char *value = wpa_config_get(ssid, "go_p2p_dev_addr");
631 fprintf(f, "\tgo_p2p_dev_addr=%s\n", value);
635 static void write_p2p_client_list(FILE *f, struct wpa_ssid *ssid)
637 char *value = wpa_config_get(ssid, "p2p_client_list");
640 fprintf(f, "\tp2p_client_list=%s\n", value);
645 static void write_psk_list(FILE *f, struct wpa_ssid *ssid)
647 struct psk_list_entry *psk;
648 char hex[32 * 2 + 1];
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);
657 #endif /* CONFIG_P2P */
660 static void wpa_config_write_network(FILE *f, struct wpa_ssid *ssid)
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)
672 write_bssid(f, ssid);
673 write_str(f, "bssid_blacklist", ssid);
674 write_str(f, "bssid_whitelist", ssid);
676 write_proto(f, ssid);
677 write_key_mgmt(f, ssid);
678 INT_DEF(bg_scan_period, DEFAULT_BG_SCAN_PERIOD);
679 write_pairwise(f, ssid);
680 write_group(f, ssid);
681 write_auth_alg(f, ssid);
685 #ifdef IEEE8021X_EAPOL
688 STR(anonymous_identity);
694 STR(private_key_passwd);
697 STR(altsubject_match);
698 STR(domain_suffix_match);
704 STR(private_key2_passwd);
707 STR(altsubject_match2);
708 STR(domain_suffix_match2);
725 INT_DEF(eapol_flags, DEFAULT_EAPOL_FLAGS);
726 STR(openssl_ciphers);
728 #endif /* IEEE8021X_EAPOL */
729 for (i = 0; i < 4; i++)
730 write_wep_key(f, i, ssid);
733 #ifdef IEEE8021X_EAPOL
734 INT_DEF(eap_workaround, DEFAULT_EAP_WORKAROUND);
736 INT_DEFe(fragment_size, DEFAULT_FRAGMENT_SIZE);
738 INT_DEFe(sim_num, DEFAULT_USER_SELECTED_SIM);
739 #endif /* IEEE8021X_EAPOL */
744 write_int(f, "proactive_key_caching", ssid->proactive_key_caching, -1);
748 #ifdef CONFIG_IEEE80211W
749 write_int(f, "ieee80211w", ssid->ieee80211w,
750 MGMT_FRAME_PROTECTION_DEFAULT);
751 #endif /* CONFIG_IEEE80211W */
754 write_go_p2p_dev_addr(f, ssid);
755 write_p2p_client_list(f, ssid);
756 write_psk_list(f, ssid);
757 #endif /* CONFIG_P2P */
758 INT(ap_max_inactivity);
763 #endif /* CONFIG_MACSEC */
765 INT(update_identifier);
766 #endif /* CONFIG_HS20 */
767 write_int(f, "mac_addr", ssid->mac_addr, -1);
769 STR(mesh_basic_rates);
770 INT_DEF(dot11MeshMaxRetries, DEFAULT_MESH_MAX_RETRIES);
771 INT_DEF(dot11MeshRetryTimeout, DEFAULT_MESH_RETRY_TIMEOUT);
772 INT_DEF(dot11MeshConfirmTimeout, DEFAULT_MESH_CONFIRM_TIMEOUT);
773 INT_DEF(dot11MeshHoldingTimeout, DEFAULT_MESH_HOLDING_TIMEOUT);
774 #endif /* CONFIG_MESH */
776 INT(ignore_broadcast_ssid);
777 #ifdef CONFIG_HT_OVERRIDES
778 INT_DEF(disable_ht, DEFAULT_DISABLE_HT);
779 INT_DEF(disable_ht40, DEFAULT_DISABLE_HT40);
780 INT_DEF(disable_sgi, DEFAULT_DISABLE_SGI);
781 INT_DEF(disable_ldpc, DEFAULT_DISABLE_LDPC);
782 INT(ht40_intolerant);
783 INT_DEF(disable_max_amsdu, DEFAULT_DISABLE_MAX_AMSDU);
784 INT_DEF(ampdu_factor, DEFAULT_AMPDU_FACTOR);
785 INT_DEF(ampdu_density, DEFAULT_AMPDU_DENSITY);
787 #endif /* CONFIG_HT_OVERRIDES */
788 #ifdef CONFIG_VHT_OVERRIDES
792 INT_DEF(vht_rx_mcs_nss_1, -1);
793 INT_DEF(vht_rx_mcs_nss_2, -1);
794 INT_DEF(vht_rx_mcs_nss_3, -1);
795 INT_DEF(vht_rx_mcs_nss_4, -1);
796 INT_DEF(vht_rx_mcs_nss_5, -1);
797 INT_DEF(vht_rx_mcs_nss_6, -1);
798 INT_DEF(vht_rx_mcs_nss_7, -1);
799 INT_DEF(vht_rx_mcs_nss_8, -1);
800 INT_DEF(vht_tx_mcs_nss_1, -1);
801 INT_DEF(vht_tx_mcs_nss_2, -1);
802 INT_DEF(vht_tx_mcs_nss_3, -1);
803 INT_DEF(vht_tx_mcs_nss_4, -1);
804 INT_DEF(vht_tx_mcs_nss_5, -1);
805 INT_DEF(vht_tx_mcs_nss_6, -1);
806 INT_DEF(vht_tx_mcs_nss_7, -1);
807 INT_DEF(vht_tx_mcs_nss_8, -1);
808 #endif /* CONFIG_VHT_OVERRIDES */
816 static void wpa_config_write_cred(FILE *f, struct wpa_cred *cred)
821 fprintf(f, "\tpriority=%d\n", cred->priority);
823 fprintf(f, "\tpcsc=%d\n", cred->pcsc);
825 fprintf(f, "\trealm=\"%s\"\n", cred->realm);
827 fprintf(f, "\tusername=\"%s\"\n", cred->username);
828 if (cred->password && cred->ext_password)
829 fprintf(f, "\tpassword=ext:%s\n", cred->password);
830 else if (cred->password)
831 fprintf(f, "\tpassword=\"%s\"\n", cred->password);
833 fprintf(f, "\tca_cert=\"%s\"\n", cred->ca_cert);
834 if (cred->client_cert)
835 fprintf(f, "\tclient_cert=\"%s\"\n", cred->client_cert);
836 if (cred->private_key)
837 fprintf(f, "\tprivate_key=\"%s\"\n", cred->private_key);
838 if (cred->private_key_passwd)
839 fprintf(f, "\tprivate_key_passwd=\"%s\"\n",
840 cred->private_key_passwd);
842 fprintf(f, "\timsi=\"%s\"\n", cred->imsi);
844 fprintf(f, "\tmilenage=\"%s\"\n", cred->milenage);
845 for (i = 0; i < cred->num_domain; i++)
846 fprintf(f, "\tdomain=\"%s\"\n", cred->domain[i]);
847 if (cred->domain_suffix_match)
848 fprintf(f, "\tdomain_suffix_match=\"%s\"\n",
849 cred->domain_suffix_match);
850 if (cred->roaming_consortium_len) {
851 fprintf(f, "\troaming_consortium=");
852 for (i = 0; i < cred->roaming_consortium_len; i++)
853 fprintf(f, "%02x", cred->roaming_consortium[i]);
856 if (cred->eap_method) {
858 name = eap_get_name(cred->eap_method[0].vendor,
859 cred->eap_method[0].method);
861 fprintf(f, "\teap=%s\n", name);
864 fprintf(f, "\tphase1=\"%s\"\n", cred->phase1);
866 fprintf(f, "\tphase2=\"%s\"\n", cred->phase2);
867 if (cred->excluded_ssid) {
869 for (i = 0; i < cred->num_excluded_ssid; i++) {
870 struct excluded_ssid *e = &cred->excluded_ssid[i];
871 fprintf(f, "\texcluded_ssid=");
872 for (j = 0; j < e->ssid_len; j++)
873 fprintf(f, "%02x", e->ssid[j]);
877 if (cred->roaming_partner) {
878 for (i = 0; i < cred->num_roaming_partner; i++) {
879 struct roaming_partner *p = &cred->roaming_partner[i];
880 fprintf(f, "\troaming_partner=\"%s,%d,%u,%s\"\n",
881 p->fqdn, p->exact_match, p->priority,
885 if (cred->update_identifier)
886 fprintf(f, "\tupdate_identifier=%d\n", cred->update_identifier);
888 if (cred->provisioning_sp)
889 fprintf(f, "\tprovisioning_sp=\"%s\"\n", cred->provisioning_sp);
890 if (cred->sp_priority)
891 fprintf(f, "\tsp_priority=%d\n", cred->sp_priority);
893 if (cred->min_dl_bandwidth_home)
894 fprintf(f, "\tmin_dl_bandwidth_home=%u\n",
895 cred->min_dl_bandwidth_home);
896 if (cred->min_ul_bandwidth_home)
897 fprintf(f, "\tmin_ul_bandwidth_home=%u\n",
898 cred->min_ul_bandwidth_home);
899 if (cred->min_dl_bandwidth_roaming)
900 fprintf(f, "\tmin_dl_bandwidth_roaming=%u\n",
901 cred->min_dl_bandwidth_roaming);
902 if (cred->min_ul_bandwidth_roaming)
903 fprintf(f, "\tmin_ul_bandwidth_roaming=%u\n",
904 cred->min_ul_bandwidth_roaming);
906 if (cred->max_bss_load)
907 fprintf(f, "\tmax_bss_load=%u\n",
911 fprintf(f, "\tocsp=%d\n", cred->ocsp);
913 if (cred->num_req_conn_capab) {
914 for (i = 0; i < cred->num_req_conn_capab; i++) {
917 fprintf(f, "\treq_conn_capab=%u",
918 cred->req_conn_capab_proto[i]);
919 ports = cred->req_conn_capab_port[i];
922 for (j = 0; ports[j] != -1; j++) {
923 fprintf(f, "%s%d", j > 0 ? "," : ":",
931 if (cred->required_roaming_consortium_len) {
932 fprintf(f, "\trequired_roaming_consortium=");
933 for (i = 0; i < cred->required_roaming_consortium_len; i++)
935 cred->required_roaming_consortium[i]);
939 if (cred->sim_num != DEFAULT_USER_SELECTED_SIM)
940 fprintf(f, "\tsim_num=%d\n", cred->sim_num);
944 #ifndef CONFIG_NO_CONFIG_BLOBS
945 static int wpa_config_write_blob(FILE *f, struct wpa_config_blob *blob)
947 unsigned char *encoded;
949 encoded = base64_encode(blob->data, blob->len, NULL);
953 fprintf(f, "\nblob-base64-%s={\n%s}\n", blob->name, encoded);
957 #endif /* CONFIG_NO_CONFIG_BLOBS */
960 static void write_global_bin(FILE *f, const char *field,
961 const struct wpabuf *val)
969 fprintf(f, "%s=", field);
970 pos = wpabuf_head(val);
971 for (i = 0; i < wpabuf_len(val); i++)
972 fprintf(f, "%02X", *pos++);
977 static void wpa_config_write_global(FILE *f, struct wpa_config *config)
979 #ifdef CONFIG_CTRL_IFACE
980 if (config->ctrl_interface)
981 fprintf(f, "ctrl_interface=%s\n", config->ctrl_interface);
982 if (config->ctrl_interface_group)
983 fprintf(f, "ctrl_interface_group=%s\n",
984 config->ctrl_interface_group);
985 #endif /* CONFIG_CTRL_IFACE */
986 if (config->eapol_version != DEFAULT_EAPOL_VERSION)
987 fprintf(f, "eapol_version=%d\n", config->eapol_version);
988 if (config->ap_scan != DEFAULT_AP_SCAN)
989 fprintf(f, "ap_scan=%d\n", config->ap_scan);
990 if (config->disable_scan_offload)
991 fprintf(f, "disable_scan_offload=%d\n",
992 config->disable_scan_offload);
993 if (config->fast_reauth != DEFAULT_FAST_REAUTH)
994 fprintf(f, "fast_reauth=%d\n", config->fast_reauth);
995 if (config->opensc_engine_path)
996 fprintf(f, "opensc_engine_path=%s\n",
997 config->opensc_engine_path);
998 if (config->pkcs11_engine_path)
999 fprintf(f, "pkcs11_engine_path=%s\n",
1000 config->pkcs11_engine_path);
1001 if (config->pkcs11_module_path)
1002 fprintf(f, "pkcs11_module_path=%s\n",
1003 config->pkcs11_module_path);
1004 if (config->openssl_ciphers)
1005 fprintf(f, "openssl_ciphers=%s\n", config->openssl_ciphers);
1006 if (config->pcsc_reader)
1007 fprintf(f, "pcsc_reader=%s\n", config->pcsc_reader);
1008 if (config->pcsc_pin)
1009 fprintf(f, "pcsc_pin=%s\n", config->pcsc_pin);
1010 if (config->driver_param)
1011 fprintf(f, "driver_param=%s\n", config->driver_param);
1012 if (config->dot11RSNAConfigPMKLifetime)
1013 fprintf(f, "dot11RSNAConfigPMKLifetime=%d\n",
1014 config->dot11RSNAConfigPMKLifetime);
1015 if (config->dot11RSNAConfigPMKReauthThreshold)
1016 fprintf(f, "dot11RSNAConfigPMKReauthThreshold=%d\n",
1017 config->dot11RSNAConfigPMKReauthThreshold);
1018 if (config->dot11RSNAConfigSATimeout)
1019 fprintf(f, "dot11RSNAConfigSATimeout=%d\n",
1020 config->dot11RSNAConfigSATimeout);
1021 if (config->update_config)
1022 fprintf(f, "update_config=%d\n", config->update_config);
1024 if (!is_nil_uuid(config->uuid)) {
1026 uuid_bin2str(config->uuid, buf, sizeof(buf));
1027 fprintf(f, "uuid=%s\n", buf);
1029 if (config->device_name)
1030 fprintf(f, "device_name=%s\n", config->device_name);
1031 if (config->manufacturer)
1032 fprintf(f, "manufacturer=%s\n", config->manufacturer);
1033 if (config->model_name)
1034 fprintf(f, "model_name=%s\n", config->model_name);
1035 if (config->model_number)
1036 fprintf(f, "model_number=%s\n", config->model_number);
1037 if (config->serial_number)
1038 fprintf(f, "serial_number=%s\n", config->serial_number);
1040 char _buf[WPS_DEV_TYPE_BUFSIZE], *buf;
1041 buf = wps_dev_type_bin2str(config->device_type,
1042 _buf, sizeof(_buf));
1043 if (os_strcmp(buf, "0-00000000-0") != 0)
1044 fprintf(f, "device_type=%s\n", buf);
1046 if (WPA_GET_BE32(config->os_version))
1047 fprintf(f, "os_version=%08x\n",
1048 WPA_GET_BE32(config->os_version));
1049 if (config->config_methods)
1050 fprintf(f, "config_methods=%s\n", config->config_methods);
1051 if (config->wps_cred_processing)
1052 fprintf(f, "wps_cred_processing=%d\n",
1053 config->wps_cred_processing);
1054 if (config->wps_vendor_ext_m1) {
1055 int i, len = wpabuf_len(config->wps_vendor_ext_m1);
1056 const u8 *p = wpabuf_head_u8(config->wps_vendor_ext_m1);
1058 fprintf(f, "wps_vendor_ext_m1=");
1059 for (i = 0; i < len; i++)
1060 fprintf(f, "%02x", *p++);
1064 #endif /* CONFIG_WPS */
1066 if (config->p2p_listen_reg_class)
1067 fprintf(f, "p2p_listen_reg_class=%u\n",
1068 config->p2p_listen_reg_class);
1069 if (config->p2p_listen_channel)
1070 fprintf(f, "p2p_listen_channel=%u\n",
1071 config->p2p_listen_channel);
1072 if (config->p2p_oper_reg_class)
1073 fprintf(f, "p2p_oper_reg_class=%u\n",
1074 config->p2p_oper_reg_class);
1075 if (config->p2p_oper_channel)
1076 fprintf(f, "p2p_oper_channel=%u\n", config->p2p_oper_channel);
1077 if (config->p2p_go_intent != DEFAULT_P2P_GO_INTENT)
1078 fprintf(f, "p2p_go_intent=%u\n", config->p2p_go_intent);
1079 if (config->p2p_ssid_postfix)
1080 fprintf(f, "p2p_ssid_postfix=%s\n", config->p2p_ssid_postfix);
1081 if (config->persistent_reconnect)
1082 fprintf(f, "persistent_reconnect=%u\n",
1083 config->persistent_reconnect);
1084 if (config->p2p_intra_bss != DEFAULT_P2P_INTRA_BSS)
1085 fprintf(f, "p2p_intra_bss=%u\n", config->p2p_intra_bss);
1086 if (config->p2p_group_idle)
1087 fprintf(f, "p2p_group_idle=%u\n", config->p2p_group_idle);
1088 if (config->p2p_passphrase_len)
1089 fprintf(f, "p2p_passphrase_len=%u\n",
1090 config->p2p_passphrase_len);
1091 if (config->p2p_pref_chan) {
1093 fprintf(f, "p2p_pref_chan=");
1094 for (i = 0; i < config->num_p2p_pref_chan; i++) {
1095 fprintf(f, "%s%u:%u", i > 0 ? "," : "",
1096 config->p2p_pref_chan[i].op_class,
1097 config->p2p_pref_chan[i].chan);
1101 if (config->p2p_no_go_freq.num) {
1102 char *val = freq_range_list_str(&config->p2p_no_go_freq);
1104 fprintf(f, "p2p_no_go_freq=%s\n", val);
1108 if (config->p2p_add_cli_chan)
1109 fprintf(f, "p2p_add_cli_chan=%d\n", config->p2p_add_cli_chan);
1110 if (config->p2p_optimize_listen_chan !=
1111 DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN)
1112 fprintf(f, "p2p_optimize_listen_chan=%d\n",
1113 config->p2p_optimize_listen_chan);
1114 if (config->p2p_go_ht40)
1115 fprintf(f, "p2p_go_ht40=%u\n", config->p2p_go_ht40);
1116 if (config->p2p_go_vht)
1117 fprintf(f, "p2p_go_vht=%u\n", config->p2p_go_vht);
1118 if (config->p2p_go_ctwindow != DEFAULT_P2P_GO_CTWINDOW)
1119 fprintf(f, "p2p_go_ctwindow=%u\n", config->p2p_go_ctwindow);
1120 if (config->p2p_disabled)
1121 fprintf(f, "p2p_disabled=%u\n", config->p2p_disabled);
1122 if (config->p2p_no_group_iface)
1123 fprintf(f, "p2p_no_group_iface=%u\n",
1124 config->p2p_no_group_iface);
1125 if (config->p2p_ignore_shared_freq)
1126 fprintf(f, "p2p_ignore_shared_freq=%u\n",
1127 config->p2p_ignore_shared_freq);
1128 #endif /* CONFIG_P2P */
1129 if (config->country[0] && config->country[1]) {
1130 fprintf(f, "country=%c%c\n",
1131 config->country[0], config->country[1]);
1133 if (config->bss_max_count != DEFAULT_BSS_MAX_COUNT)
1134 fprintf(f, "bss_max_count=%u\n", config->bss_max_count);
1135 if (config->bss_expiration_age != DEFAULT_BSS_EXPIRATION_AGE)
1136 fprintf(f, "bss_expiration_age=%u\n",
1137 config->bss_expiration_age);
1138 if (config->bss_expiration_scan_count !=
1139 DEFAULT_BSS_EXPIRATION_SCAN_COUNT)
1140 fprintf(f, "bss_expiration_scan_count=%u\n",
1141 config->bss_expiration_scan_count);
1142 if (config->filter_ssids)
1143 fprintf(f, "filter_ssids=%d\n", config->filter_ssids);
1144 if (config->max_num_sta != DEFAULT_MAX_NUM_STA)
1145 fprintf(f, "max_num_sta=%u\n", config->max_num_sta);
1146 if (config->disassoc_low_ack)
1147 fprintf(f, "disassoc_low_ack=%u\n", config->disassoc_low_ack);
1150 fprintf(f, "hs20=1\n");
1151 #endif /* CONFIG_HS20 */
1152 #ifdef CONFIG_INTERWORKING
1153 if (config->interworking)
1154 fprintf(f, "interworking=%u\n", config->interworking);
1155 if (!is_zero_ether_addr(config->hessid))
1156 fprintf(f, "hessid=" MACSTR "\n", MAC2STR(config->hessid));
1157 if (config->access_network_type != DEFAULT_ACCESS_NETWORK_TYPE)
1158 fprintf(f, "access_network_type=%d\n",
1159 config->access_network_type);
1160 #endif /* CONFIG_INTERWORKING */
1161 if (config->pbc_in_m1)
1162 fprintf(f, "pbc_in_m1=%u\n", config->pbc_in_m1);
1163 if (config->wps_nfc_pw_from_config) {
1164 if (config->wps_nfc_dev_pw_id)
1165 fprintf(f, "wps_nfc_dev_pw_id=%d\n",
1166 config->wps_nfc_dev_pw_id);
1167 write_global_bin(f, "wps_nfc_dh_pubkey",
1168 config->wps_nfc_dh_pubkey);
1169 write_global_bin(f, "wps_nfc_dh_privkey",
1170 config->wps_nfc_dh_privkey);
1171 write_global_bin(f, "wps_nfc_dev_pw", config->wps_nfc_dev_pw);
1174 if (config->ext_password_backend)
1175 fprintf(f, "ext_password_backend=%s\n",
1176 config->ext_password_backend);
1177 if (config->p2p_go_max_inactivity != DEFAULT_P2P_GO_MAX_INACTIVITY)
1178 fprintf(f, "p2p_go_max_inactivity=%d\n",
1179 config->p2p_go_max_inactivity);
1180 if (config->auto_interworking)
1181 fprintf(f, "auto_interworking=%d\n",
1182 config->auto_interworking);
1184 fprintf(f, "okc=%d\n", config->okc);
1186 fprintf(f, "pmf=%d\n", config->pmf);
1187 if (config->dtim_period)
1188 fprintf(f, "dtim_period=%d\n", config->dtim_period);
1189 if (config->beacon_int)
1190 fprintf(f, "beacon_int=%d\n", config->beacon_int);
1192 if (config->sae_groups) {
1194 fprintf(f, "sae_groups=");
1195 for (i = 0; config->sae_groups[i] >= 0; i++) {
1196 fprintf(f, "%s%d", i > 0 ? " " : "",
1197 config->sae_groups[i]);
1202 if (config->ap_vendor_elements) {
1203 int i, len = wpabuf_len(config->ap_vendor_elements);
1204 const u8 *p = wpabuf_head_u8(config->ap_vendor_elements);
1206 fprintf(f, "ap_vendor_elements=");
1207 for (i = 0; i < len; i++)
1208 fprintf(f, "%02x", *p++);
1213 if (config->ignore_old_scan_res)
1214 fprintf(f, "ignore_old_scan_res=%d\n",
1215 config->ignore_old_scan_res);
1217 if (config->freq_list && config->freq_list[0]) {
1219 fprintf(f, "freq_list=");
1220 for (i = 0; config->freq_list[i]; i++) {
1221 fprintf(f, "%s%u", i > 0 ? " " : "",
1222 config->freq_list[i]);
1226 if (config->scan_cur_freq != DEFAULT_SCAN_CUR_FREQ)
1227 fprintf(f, "scan_cur_freq=%d\n", config->scan_cur_freq);
1229 if (config->sched_scan_interval)
1230 fprintf(f, "sched_scan_interval=%u\n",
1231 config->sched_scan_interval);
1233 if (config->external_sim)
1234 fprintf(f, "external_sim=%d\n", config->external_sim);
1236 if (config->tdls_external_control)
1237 fprintf(f, "tdls_external_control=%d\n",
1238 config->tdls_external_control);
1240 if (config->wowlan_triggers)
1241 fprintf(f, "wowlan_triggers=%s\n",
1242 config->wowlan_triggers);
1245 fprintf(f, "bgscan=\"%s\"\n", config->bgscan);
1247 if (config->p2p_search_delay != DEFAULT_P2P_SEARCH_DELAY)
1248 fprintf(f, "p2p_search_delay=%u\n",
1249 config->p2p_search_delay);
1251 if (config->mac_addr)
1252 fprintf(f, "mac_addr=%d\n", config->mac_addr);
1254 if (config->rand_addr_lifetime != DEFAULT_RAND_ADDR_LIFETIME)
1255 fprintf(f, "rand_addr_lifetime=%u\n",
1256 config->rand_addr_lifetime);
1258 if (config->preassoc_mac_addr)
1259 fprintf(f, "preassoc_mac_addr=%d\n", config->preassoc_mac_addr);
1261 if (config->key_mgmt_offload != DEFAULT_KEY_MGMT_OFFLOAD)
1262 fprintf(f, "key_mgmt_offload=%u\n", config->key_mgmt_offload);
1264 if (config->user_mpm != DEFAULT_USER_MPM)
1265 fprintf(f, "user_mpm=%d\n", config->user_mpm);
1267 if (config->max_peer_links != DEFAULT_MAX_PEER_LINKS)
1268 fprintf(f, "max_peer_links=%d\n", config->max_peer_links);
1270 if (config->cert_in_cb != DEFAULT_CERT_IN_CB)
1271 fprintf(f, "cert_in_cb=%d\n", config->cert_in_cb);
1273 if (config->mesh_max_inactivity != DEFAULT_MESH_MAX_INACTIVITY)
1274 fprintf(f, "mesh_max_inactivity=%d\n",
1275 config->mesh_max_inactivity);
1277 if (config->passive_scan)
1278 fprintf(f, "passive_scan=%d\n", config->passive_scan);
1280 if (config->reassoc_same_bss_optim)
1281 fprintf(f, "reassoc_same_bss_optim=%d\n",
1282 config->reassoc_same_bss_optim);
1285 #endif /* CONFIG_NO_CONFIG_WRITE */
1288 int wpa_config_write(const char *name, struct wpa_config *config)
1290 #ifndef CONFIG_NO_CONFIG_WRITE
1292 struct wpa_ssid *ssid;
1293 struct wpa_cred *cred;
1294 #ifndef CONFIG_NO_CONFIG_BLOBS
1295 struct wpa_config_blob *blob;
1296 #endif /* CONFIG_NO_CONFIG_BLOBS */
1298 const char *orig_name = name;
1299 int tmp_len = os_strlen(name) + 5; /* allow space for .tmp suffix */
1300 char *tmp_name = os_malloc(tmp_len);
1303 os_snprintf(tmp_name, tmp_len, "%s.tmp", name);
1307 wpa_printf(MSG_DEBUG, "Writing configuration file '%s'", name);
1309 f = fopen(name, "w");
1311 wpa_printf(MSG_DEBUG, "Failed to open '%s' for writing", name);
1316 wpa_config_write_global(f, config);
1318 for (cred = config->cred; cred; cred = cred->next) {
1319 if (cred->temporary)
1321 fprintf(f, "\ncred={\n");
1322 wpa_config_write_cred(f, cred);
1326 for (ssid = config->ssid; ssid; ssid = ssid->next) {
1327 if (ssid->key_mgmt == WPA_KEY_MGMT_WPS || ssid->temporary)
1328 continue; /* do not save temporary networks */
1329 if (wpa_key_mgmt_wpa_psk(ssid->key_mgmt) && !ssid->psk_set &&
1331 continue; /* do not save invalid network */
1332 fprintf(f, "\nnetwork={\n");
1333 wpa_config_write_network(f, ssid);
1337 #ifndef CONFIG_NO_CONFIG_BLOBS
1338 for (blob = config->blobs; blob; blob = blob->next) {
1339 ret = wpa_config_write_blob(f, blob);
1343 #endif /* CONFIG_NO_CONFIG_BLOBS */
1351 chmod_ret = chmod(tmp_name,
1352 S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP);
1353 #endif /* ANDROID */
1354 if (chmod_ret != 0 || rename(tmp_name, orig_name) != 0)
1360 wpa_printf(MSG_DEBUG, "Configuration file '%s' written %ssuccessfully",
1361 orig_name, ret ? "un" : "");
1363 #else /* CONFIG_NO_CONFIG_WRITE */
1365 #endif /* CONFIG_NO_CONFIG_WRITE */