2 * WPA Supplicant / Configuration parser and common functions
3 * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
20 #include "eap_peer/eap.h"
24 #if !defined(CONFIG_CTRL_IFACE) && defined(CONFIG_NO_CONFIG_WRITE)
25 #define NO_CONFIG_WRITE
29 * Structure for network configuration parsing. This data is used to implement
30 * a generic parser for each network block variable. The table of configuration
31 * variables is defined below in this file (ssid_fields[]).
34 /* Configuration variable name */
37 /* Parser function for this variable */
38 int (*parser
)(const struct parse_data
*data
, struct wpa_ssid
*ssid
,
39 int line
, const char *value
);
41 #ifndef NO_CONFIG_WRITE
42 /* Writer function (i.e., to get the variable in text format from
43 * internal presentation). */
44 char * (*writer
)(const struct parse_data
*data
, struct wpa_ssid
*ssid
);
45 #endif /* NO_CONFIG_WRITE */
47 /* Variable specific parameters for the parser. */
48 void *param1
, *param2
, *param3
, *param4
;
50 /* 0 = this variable can be included in debug output and ctrl_iface
51 * 1 = this variable contains key/private data and it must not be
52 * included in debug output unless explicitly requested. In
53 * addition, this variable will not be readable through the
60 static char * wpa_config_parse_string(const char *value
, size_t *len
)
66 pos
= os_strrchr(value
, '"');
67 if (pos
== NULL
|| pos
[1] != '\0')
70 str
= os_malloc(*len
+ 1);
73 os_memcpy(str
, value
, *len
);
78 size_t tlen
, hlen
= os_strlen(value
);
82 str
= os_malloc(tlen
+ 1);
85 if (hexstr2bin(value
, str
, tlen
)) {
96 static int wpa_config_parse_str(const struct parse_data
*data
,
97 struct wpa_ssid
*ssid
,
98 int line
, const char *value
)
100 size_t res_len
, *dst_len
;
103 if (os_strcmp(value
, "NULL") == 0) {
104 wpa_printf(MSG_DEBUG
, "Unset configuration string '%s'",
111 tmp
= wpa_config_parse_string(value
, &res_len
);
113 wpa_printf(MSG_ERROR
, "Line %d: failed to parse %s '%s'.",
115 data
->key_data
? "[KEY DATA REMOVED]" : value
);
119 if (data
->key_data
) {
120 wpa_hexdump_ascii_key(MSG_MSGDUMP
, data
->name
,
121 (u8
*) tmp
, res_len
);
123 wpa_hexdump_ascii(MSG_MSGDUMP
, data
->name
,
124 (u8
*) tmp
, res_len
);
127 if (data
->param3
&& res_len
< (size_t) data
->param3
) {
128 wpa_printf(MSG_ERROR
, "Line %d: too short %s (len=%lu "
129 "min_len=%ld)", line
, data
->name
,
130 (unsigned long) res_len
, (long) data
->param3
);
135 if (data
->param4
&& res_len
> (size_t) data
->param4
) {
136 wpa_printf(MSG_ERROR
, "Line %d: too long %s (len=%lu "
137 "max_len=%ld)", line
, data
->name
,
138 (unsigned long) res_len
, (long) data
->param4
);
144 dst
= (char **) (((u8
*) ssid
) + (long) data
->param1
);
145 dst_len
= (size_t *) (((u8
*) ssid
) + (long) data
->param2
);
155 #ifndef NO_CONFIG_WRITE
156 static int is_hex(const u8
*data
, size_t len
)
160 for (i
= 0; i
< len
; i
++) {
161 if (data
[i
] < 32 || data
[i
] >= 127)
168 static char * wpa_config_write_string_ascii(const u8
*value
, size_t len
)
172 buf
= os_malloc(len
+ 3);
176 os_memcpy(buf
+ 1, value
, len
);
184 static char * wpa_config_write_string_hex(const u8
*value
, size_t len
)
188 buf
= os_zalloc(2 * len
+ 1);
191 wpa_snprintf_hex(buf
, 2 * len
+ 1, value
, len
);
197 static char * wpa_config_write_string(const u8
*value
, size_t len
)
202 if (is_hex(value
, len
))
203 return wpa_config_write_string_hex(value
, len
);
205 return wpa_config_write_string_ascii(value
, len
);
209 static char * wpa_config_write_str(const struct parse_data
*data
,
210 struct wpa_ssid
*ssid
)
215 src
= (char **) (((u8
*) ssid
) + (long) data
->param1
);
220 len
= *((size_t *) (((u8
*) ssid
) + (long) data
->param2
));
222 len
= os_strlen(*src
);
224 return wpa_config_write_string((const u8
*) *src
, len
);
226 #endif /* NO_CONFIG_WRITE */
229 static int wpa_config_parse_int(const struct parse_data
*data
,
230 struct wpa_ssid
*ssid
,
231 int line
, const char *value
)
235 dst
= (int *) (((u8
*) ssid
) + (long) data
->param1
);
237 wpa_printf(MSG_MSGDUMP
, "%s=%d (0x%x)", data
->name
, *dst
, *dst
);
239 if (data
->param3
&& *dst
< (long) data
->param3
) {
240 wpa_printf(MSG_ERROR
, "Line %d: too small %s (value=%d "
241 "min_value=%ld)", line
, data
->name
, *dst
,
242 (long) data
->param3
);
243 *dst
= (long) data
->param3
;
247 if (data
->param4
&& *dst
> (long) data
->param4
) {
248 wpa_printf(MSG_ERROR
, "Line %d: too large %s (value=%d "
249 "max_value=%ld)", line
, data
->name
, *dst
,
250 (long) data
->param4
);
251 *dst
= (long) data
->param4
;
259 #ifndef NO_CONFIG_WRITE
260 static char * wpa_config_write_int(const struct parse_data
*data
,
261 struct wpa_ssid
*ssid
)
266 src
= (int *) (((u8
*) ssid
) + (long) data
->param1
);
268 value
= os_malloc(20);
271 res
= os_snprintf(value
, 20, "%d", *src
);
272 if (res
< 0 || res
>= 20) {
276 value
[20 - 1] = '\0';
279 #endif /* NO_CONFIG_WRITE */
282 static int wpa_config_parse_bssid(const struct parse_data
*data
,
283 struct wpa_ssid
*ssid
, int line
,
286 if (hwaddr_aton(value
, ssid
->bssid
)) {
287 wpa_printf(MSG_ERROR
, "Line %d: Invalid BSSID '%s'.",
292 wpa_hexdump(MSG_MSGDUMP
, "BSSID", ssid
->bssid
, ETH_ALEN
);
297 #ifndef NO_CONFIG_WRITE
298 static char * wpa_config_write_bssid(const struct parse_data
*data
,
299 struct wpa_ssid
*ssid
)
304 if (!ssid
->bssid_set
)
307 value
= os_malloc(20);
310 res
= os_snprintf(value
, 20, MACSTR
, MAC2STR(ssid
->bssid
));
311 if (res
< 0 || res
>= 20) {
315 value
[20 - 1] = '\0';
318 #endif /* NO_CONFIG_WRITE */
321 static int wpa_config_parse_psk(const struct parse_data
*data
,
322 struct wpa_ssid
*ssid
, int line
,
326 #ifndef CONFIG_NO_PBKDF2
331 pos
= os_strrchr(value
, '"');
335 len
= os_strlen(value
);
336 if (len
< 8 || len
> 63) {
337 wpa_printf(MSG_ERROR
, "Line %d: Invalid passphrase "
338 "length %lu (expected: 8..63) '%s'.",
339 line
, (unsigned long) len
, value
);
342 wpa_hexdump_ascii_key(MSG_MSGDUMP
, "PSK (ASCII passphrase)",
344 if (ssid
->passphrase
&& os_strlen(ssid
->passphrase
) == len
&&
345 os_memcmp(ssid
->passphrase
, value
, len
) == 0)
348 os_free(ssid
->passphrase
);
349 ssid
->passphrase
= os_malloc(len
+ 1);
350 if (ssid
->passphrase
== NULL
)
352 os_memcpy(ssid
->passphrase
, value
, len
);
353 ssid
->passphrase
[len
] = '\0';
355 #else /* CONFIG_NO_PBKDF2 */
356 wpa_printf(MSG_ERROR
, "Line %d: ASCII passphrase not "
359 #endif /* CONFIG_NO_PBKDF2 */
362 if (hexstr2bin(value
, ssid
->psk
, PMK_LEN
) ||
363 value
[PMK_LEN
* 2] != '\0') {
364 wpa_printf(MSG_ERROR
, "Line %d: Invalid PSK '%s'.",
369 os_free(ssid
->passphrase
);
370 ssid
->passphrase
= NULL
;
373 wpa_hexdump_key(MSG_MSGDUMP
, "PSK", ssid
->psk
, PMK_LEN
);
378 #ifndef NO_CONFIG_WRITE
379 static char * wpa_config_write_psk(const struct parse_data
*data
,
380 struct wpa_ssid
*ssid
)
382 if (ssid
->passphrase
)
383 return wpa_config_write_string_ascii(
384 (const u8
*) ssid
->passphrase
,
385 os_strlen(ssid
->passphrase
));
388 return wpa_config_write_string_hex(ssid
->psk
, PMK_LEN
);
392 #endif /* NO_CONFIG_WRITE */
395 static int wpa_config_parse_proto(const struct parse_data
*data
,
396 struct wpa_ssid
*ssid
, int line
,
399 int val
= 0, last
, errors
= 0;
400 char *start
, *end
, *buf
;
402 buf
= os_strdup(value
);
407 while (*start
!= '\0') {
408 while (*start
== ' ' || *start
== '\t')
413 while (*end
!= ' ' && *end
!= '\t' && *end
!= '\0')
417 if (os_strcmp(start
, "WPA") == 0)
418 val
|= WPA_PROTO_WPA
;
419 else if (os_strcmp(start
, "RSN") == 0 ||
420 os_strcmp(start
, "WPA2") == 0)
421 val
|= WPA_PROTO_RSN
;
423 wpa_printf(MSG_ERROR
, "Line %d: invalid proto '%s'",
435 wpa_printf(MSG_ERROR
,
436 "Line %d: no proto values configured.", line
);
440 wpa_printf(MSG_MSGDUMP
, "proto: 0x%x", val
);
442 return errors
? -1 : 0;
446 #ifndef NO_CONFIG_WRITE
447 static char * wpa_config_write_proto(const struct parse_data
*data
,
448 struct wpa_ssid
*ssid
)
451 char *buf
, *pos
, *end
;
453 pos
= buf
= os_zalloc(10);
458 if (ssid
->proto
& WPA_PROTO_WPA
) {
459 ret
= os_snprintf(pos
, end
- pos
, "%sWPA", first
? "" : " ");
460 if (ret
< 0 || ret
>= end
- pos
)
466 if (ssid
->proto
& WPA_PROTO_RSN
) {
467 ret
= os_snprintf(pos
, end
- pos
, "%sRSN", first
? "" : " ");
468 if (ret
< 0 || ret
>= end
- pos
)
476 #endif /* NO_CONFIG_WRITE */
479 static int wpa_config_parse_key_mgmt(const struct parse_data
*data
,
480 struct wpa_ssid
*ssid
, int line
,
483 int val
= 0, last
, errors
= 0;
484 char *start
, *end
, *buf
;
486 buf
= os_strdup(value
);
491 while (*start
!= '\0') {
492 while (*start
== ' ' || *start
== '\t')
497 while (*end
!= ' ' && *end
!= '\t' && *end
!= '\0')
501 if (os_strcmp(start
, "WPA-PSK") == 0)
502 val
|= WPA_KEY_MGMT_PSK
;
503 else if (os_strcmp(start
, "WPA-EAP") == 0)
504 val
|= WPA_KEY_MGMT_IEEE8021X
;
505 else if (os_strcmp(start
, "IEEE8021X") == 0)
506 val
|= WPA_KEY_MGMT_IEEE8021X_NO_WPA
;
507 else if (os_strcmp(start
, "NONE") == 0)
508 val
|= WPA_KEY_MGMT_NONE
;
509 else if (os_strcmp(start
, "WPA-NONE") == 0)
510 val
|= WPA_KEY_MGMT_WPA_NONE
;
511 #ifdef CONFIG_IEEE80211R
512 else if (os_strcmp(start
, "FT-PSK") == 0)
513 val
|= WPA_KEY_MGMT_FT_PSK
;
514 else if (os_strcmp(start
, "FT-EAP") == 0)
515 val
|= WPA_KEY_MGMT_FT_IEEE8021X
;
516 #endif /* CONFIG_IEEE80211R */
517 #ifdef CONFIG_IEEE80211W
518 else if (os_strcmp(start
, "WPA-PSK-SHA256") == 0)
519 val
|= WPA_KEY_MGMT_PSK_SHA256
;
520 else if (os_strcmp(start
, "WPA-EAP-SHA256") == 0)
521 val
|= WPA_KEY_MGMT_IEEE8021X_SHA256
;
522 #endif /* CONFIG_IEEE80211W */
524 else if (os_strcmp(start
, "WPS") == 0)
525 val
|= WPA_KEY_MGMT_WPS
;
526 #endif /* CONFIG_WPS */
528 wpa_printf(MSG_ERROR
, "Line %d: invalid key_mgmt '%s'",
540 wpa_printf(MSG_ERROR
,
541 "Line %d: no key_mgmt values configured.", line
);
545 wpa_printf(MSG_MSGDUMP
, "key_mgmt: 0x%x", val
);
546 ssid
->key_mgmt
= val
;
547 return errors
? -1 : 0;
551 #ifndef NO_CONFIG_WRITE
552 static char * wpa_config_write_key_mgmt(const struct parse_data
*data
,
553 struct wpa_ssid
*ssid
)
555 char *buf
, *pos
, *end
;
558 pos
= buf
= os_zalloc(50);
563 if (ssid
->key_mgmt
& WPA_KEY_MGMT_PSK
) {
564 ret
= os_snprintf(pos
, end
- pos
, "%sWPA-PSK",
565 pos
== buf
? "" : " ");
566 if (ret
< 0 || ret
>= end
- pos
) {
573 if (ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X
) {
574 ret
= os_snprintf(pos
, end
- pos
, "%sWPA-EAP",
575 pos
== buf
? "" : " ");
576 if (ret
< 0 || ret
>= end
- pos
) {
583 if (ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
584 ret
= os_snprintf(pos
, end
- pos
, "%sIEEE8021X",
585 pos
== buf
? "" : " ");
586 if (ret
< 0 || ret
>= end
- pos
) {
593 if (ssid
->key_mgmt
& WPA_KEY_MGMT_NONE
) {
594 ret
= os_snprintf(pos
, end
- pos
, "%sNONE",
595 pos
== buf
? "" : " ");
596 if (ret
< 0 || ret
>= end
- pos
) {
603 if (ssid
->key_mgmt
& WPA_KEY_MGMT_WPA_NONE
) {
604 ret
= os_snprintf(pos
, end
- pos
, "%sWPA-NONE",
605 pos
== buf
? "" : " ");
606 if (ret
< 0 || ret
>= end
- pos
) {
613 #ifdef CONFIG_IEEE80211R
614 if (ssid
->key_mgmt
& WPA_KEY_MGMT_FT_PSK
)
615 pos
+= os_snprintf(pos
, end
- pos
, "%sFT-PSK",
616 pos
== buf
? "" : " ");
618 if (ssid
->key_mgmt
& WPA_KEY_MGMT_FT_IEEE8021X
)
619 pos
+= os_snprintf(pos
, end
- pos
, "%sFT-EAP",
620 pos
== buf
? "" : " ");
621 #endif /* CONFIG_IEEE80211R */
623 #ifdef CONFIG_IEEE80211W
624 if (ssid
->key_mgmt
& WPA_KEY_MGMT_PSK_SHA256
)
625 pos
+= os_snprintf(pos
, end
- pos
, "%sWPA-PSK-SHA256",
626 pos
== buf
? "" : " ");
628 if (ssid
->key_mgmt
& WPA_KEY_MGMT_IEEE8021X_SHA256
)
629 pos
+= os_snprintf(pos
, end
- pos
, "%sWPA-EAP-SHA256",
630 pos
== buf
? "" : " ");
631 #endif /* CONFIG_IEEE80211W */
634 if (ssid
->key_mgmt
& WPA_KEY_MGMT_WPS
)
635 pos
+= os_snprintf(pos
, end
- pos
, "%sWPS",
636 pos
== buf
? "" : " ");
637 #endif /* CONFIG_WPS */
641 #endif /* NO_CONFIG_WRITE */
644 static int wpa_config_parse_cipher(int line
, const char *value
)
647 char *start
, *end
, *buf
;
649 buf
= os_strdup(value
);
654 while (*start
!= '\0') {
655 while (*start
== ' ' || *start
== '\t')
660 while (*end
!= ' ' && *end
!= '\t' && *end
!= '\0')
664 if (os_strcmp(start
, "CCMP") == 0)
665 val
|= WPA_CIPHER_CCMP
;
666 else if (os_strcmp(start
, "TKIP") == 0)
667 val
|= WPA_CIPHER_TKIP
;
668 else if (os_strcmp(start
, "WEP104") == 0)
669 val
|= WPA_CIPHER_WEP104
;
670 else if (os_strcmp(start
, "WEP40") == 0)
671 val
|= WPA_CIPHER_WEP40
;
672 else if (os_strcmp(start
, "NONE") == 0)
673 val
|= WPA_CIPHER_NONE
;
675 wpa_printf(MSG_ERROR
, "Line %d: invalid cipher '%s'.",
688 wpa_printf(MSG_ERROR
, "Line %d: no cipher values configured.",
696 #ifndef NO_CONFIG_WRITE
697 static char * wpa_config_write_cipher(int cipher
)
699 char *buf
, *pos
, *end
;
702 pos
= buf
= os_zalloc(50);
707 if (cipher
& WPA_CIPHER_CCMP
) {
708 ret
= os_snprintf(pos
, end
- pos
, "%sCCMP",
709 pos
== buf
? "" : " ");
710 if (ret
< 0 || ret
>= end
- pos
) {
717 if (cipher
& WPA_CIPHER_TKIP
) {
718 ret
= os_snprintf(pos
, end
- pos
, "%sTKIP",
719 pos
== buf
? "" : " ");
720 if (ret
< 0 || ret
>= end
- pos
) {
727 if (cipher
& WPA_CIPHER_WEP104
) {
728 ret
= os_snprintf(pos
, end
- pos
, "%sWEP104",
729 pos
== buf
? "" : " ");
730 if (ret
< 0 || ret
>= end
- pos
) {
737 if (cipher
& WPA_CIPHER_WEP40
) {
738 ret
= os_snprintf(pos
, end
- pos
, "%sWEP40",
739 pos
== buf
? "" : " ");
740 if (ret
< 0 || ret
>= end
- pos
) {
747 if (cipher
& WPA_CIPHER_NONE
) {
748 ret
= os_snprintf(pos
, end
- pos
, "%sNONE",
749 pos
== buf
? "" : " ");
750 if (ret
< 0 || ret
>= end
- pos
) {
759 #endif /* NO_CONFIG_WRITE */
762 static int wpa_config_parse_pairwise(const struct parse_data
*data
,
763 struct wpa_ssid
*ssid
, int line
,
767 val
= wpa_config_parse_cipher(line
, value
);
770 if (val
& ~(WPA_CIPHER_CCMP
| WPA_CIPHER_TKIP
| WPA_CIPHER_NONE
)) {
771 wpa_printf(MSG_ERROR
, "Line %d: not allowed pairwise cipher "
772 "(0x%x).", line
, val
);
776 wpa_printf(MSG_MSGDUMP
, "pairwise: 0x%x", val
);
777 ssid
->pairwise_cipher
= val
;
782 #ifndef NO_CONFIG_WRITE
783 static char * wpa_config_write_pairwise(const struct parse_data
*data
,
784 struct wpa_ssid
*ssid
)
786 return wpa_config_write_cipher(ssid
->pairwise_cipher
);
788 #endif /* NO_CONFIG_WRITE */
791 static int wpa_config_parse_group(const struct parse_data
*data
,
792 struct wpa_ssid
*ssid
, int line
,
796 val
= wpa_config_parse_cipher(line
, value
);
799 if (val
& ~(WPA_CIPHER_CCMP
| WPA_CIPHER_TKIP
| WPA_CIPHER_WEP104
|
801 wpa_printf(MSG_ERROR
, "Line %d: not allowed group cipher "
802 "(0x%x).", line
, val
);
806 wpa_printf(MSG_MSGDUMP
, "group: 0x%x", val
);
807 ssid
->group_cipher
= val
;
812 #ifndef NO_CONFIG_WRITE
813 static char * wpa_config_write_group(const struct parse_data
*data
,
814 struct wpa_ssid
*ssid
)
816 return wpa_config_write_cipher(ssid
->group_cipher
);
818 #endif /* NO_CONFIG_WRITE */
821 static int wpa_config_parse_auth_alg(const struct parse_data
*data
,
822 struct wpa_ssid
*ssid
, int line
,
825 int val
= 0, last
, errors
= 0;
826 char *start
, *end
, *buf
;
828 buf
= os_strdup(value
);
833 while (*start
!= '\0') {
834 while (*start
== ' ' || *start
== '\t')
839 while (*end
!= ' ' && *end
!= '\t' && *end
!= '\0')
843 if (os_strcmp(start
, "OPEN") == 0)
844 val
|= WPA_AUTH_ALG_OPEN
;
845 else if (os_strcmp(start
, "SHARED") == 0)
846 val
|= WPA_AUTH_ALG_SHARED
;
847 else if (os_strcmp(start
, "LEAP") == 0)
848 val
|= WPA_AUTH_ALG_LEAP
;
850 wpa_printf(MSG_ERROR
, "Line %d: invalid auth_alg '%s'",
862 wpa_printf(MSG_ERROR
,
863 "Line %d: no auth_alg values configured.", line
);
867 wpa_printf(MSG_MSGDUMP
, "auth_alg: 0x%x", val
);
868 ssid
->auth_alg
= val
;
869 return errors
? -1 : 0;
873 #ifndef NO_CONFIG_WRITE
874 static char * wpa_config_write_auth_alg(const struct parse_data
*data
,
875 struct wpa_ssid
*ssid
)
877 char *buf
, *pos
, *end
;
880 pos
= buf
= os_zalloc(30);
885 if (ssid
->auth_alg
& WPA_AUTH_ALG_OPEN
) {
886 ret
= os_snprintf(pos
, end
- pos
, "%sOPEN",
887 pos
== buf
? "" : " ");
888 if (ret
< 0 || ret
>= end
- pos
) {
895 if (ssid
->auth_alg
& WPA_AUTH_ALG_SHARED
) {
896 ret
= os_snprintf(pos
, end
- pos
, "%sSHARED",
897 pos
== buf
? "" : " ");
898 if (ret
< 0 || ret
>= end
- pos
) {
905 if (ssid
->auth_alg
& WPA_AUTH_ALG_LEAP
) {
906 ret
= os_snprintf(pos
, end
- pos
, "%sLEAP",
907 pos
== buf
? "" : " ");
908 if (ret
< 0 || ret
>= end
- pos
) {
917 #endif /* NO_CONFIG_WRITE */
920 #ifdef IEEE8021X_EAPOL
921 static int wpa_config_parse_eap(const struct parse_data
*data
,
922 struct wpa_ssid
*ssid
, int line
,
925 int last
, errors
= 0;
926 char *start
, *end
, *buf
;
927 struct eap_method_type
*methods
= NULL
, *tmp
;
928 size_t num_methods
= 0;
930 buf
= os_strdup(value
);
935 while (*start
!= '\0') {
936 while (*start
== ' ' || *start
== '\t')
941 while (*end
!= ' ' && *end
!= '\t' && *end
!= '\0')
946 methods
= os_realloc(methods
,
947 (num_methods
+ 1) * sizeof(*methods
));
948 if (methods
== NULL
) {
953 methods
[num_methods
].method
= eap_peer_get_type(
954 start
, &methods
[num_methods
].vendor
);
955 if (methods
[num_methods
].vendor
== EAP_VENDOR_IETF
&&
956 methods
[num_methods
].method
== EAP_TYPE_NONE
) {
957 wpa_printf(MSG_ERROR
, "Line %d: unknown EAP method "
958 "'%s'", line
, start
);
959 wpa_printf(MSG_ERROR
, "You may need to add support for"
960 " this EAP method during wpa_supplicant\n"
961 "build time configuration.\n"
962 "See README for more information.");
964 } else if (methods
[num_methods
].vendor
== EAP_VENDOR_IETF
&&
965 methods
[num_methods
].method
== EAP_TYPE_LEAP
)
977 methods
= os_realloc(methods
, (num_methods
+ 1) * sizeof(*methods
));
978 if (methods
== NULL
) {
982 methods
[num_methods
].vendor
= EAP_VENDOR_IETF
;
983 methods
[num_methods
].method
= EAP_TYPE_NONE
;
986 wpa_hexdump(MSG_MSGDUMP
, "eap methods",
987 (u8
*) methods
, num_methods
* sizeof(*methods
));
988 ssid
->eap
.eap_methods
= methods
;
989 return errors
? -1 : 0;
993 static char * wpa_config_write_eap(const struct parse_data
*data
,
994 struct wpa_ssid
*ssid
)
997 char *buf
, *pos
, *end
;
998 const struct eap_method_type
*eap_methods
= ssid
->eap
.eap_methods
;
1001 if (eap_methods
== NULL
)
1004 pos
= buf
= os_zalloc(100);
1009 for (i
= 0; eap_methods
[i
].vendor
!= EAP_VENDOR_IETF
||
1010 eap_methods
[i
].method
!= EAP_TYPE_NONE
; i
++) {
1011 name
= eap_get_name(eap_methods
[i
].vendor
,
1012 eap_methods
[i
].method
);
1014 ret
= os_snprintf(pos
, end
- pos
, "%s%s",
1015 pos
== buf
? "" : " ", name
);
1016 if (ret
< 0 || ret
>= end
- pos
)
1028 static int wpa_config_parse_password(const struct parse_data
*data
,
1029 struct wpa_ssid
*ssid
, int line
,
1034 if (os_strcmp(value
, "NULL") == 0) {
1035 wpa_printf(MSG_DEBUG
, "Unset configuration string 'password'");
1036 os_free(ssid
->eap
.password
);
1037 ssid
->eap
.password
= NULL
;
1038 ssid
->eap
.password_len
= 0;
1042 if (os_strncmp(value
, "hash:", 5) != 0) {
1046 tmp
= wpa_config_parse_string(value
, &res_len
);
1048 wpa_printf(MSG_ERROR
, "Line %d: failed to parse "
1052 wpa_hexdump_ascii_key(MSG_MSGDUMP
, data
->name
,
1053 (u8
*) tmp
, res_len
);
1055 os_free(ssid
->eap
.password
);
1056 ssid
->eap
.password
= (u8
*) tmp
;
1057 ssid
->eap
.password_len
= res_len
;
1058 ssid
->eap
.flags
&= ~EAP_CONFIG_FLAGS_PASSWORD_NTHASH
;
1064 /* NtPasswordHash: hash:<32 hex digits> */
1065 if (os_strlen(value
+ 5) != 2 * 16) {
1066 wpa_printf(MSG_ERROR
, "Line %d: Invalid password hash length "
1067 "(expected 32 hex digits)", line
);
1071 hash
= os_malloc(16);
1075 if (hexstr2bin(value
+ 5, hash
, 16)) {
1077 wpa_printf(MSG_ERROR
, "Line %d: Invalid password hash", line
);
1081 wpa_hexdump_key(MSG_MSGDUMP
, data
->name
, hash
, 16);
1083 os_free(ssid
->eap
.password
);
1084 ssid
->eap
.password
= hash
;
1085 ssid
->eap
.password_len
= 16;
1086 ssid
->eap
.flags
|= EAP_CONFIG_FLAGS_PASSWORD_NTHASH
;
1092 static char * wpa_config_write_password(const struct parse_data
*data
,
1093 struct wpa_ssid
*ssid
)
1097 if (ssid
->eap
.password
== NULL
)
1100 if (!(ssid
->eap
.flags
& EAP_CONFIG_FLAGS_PASSWORD_NTHASH
)) {
1101 return wpa_config_write_string(
1102 ssid
->eap
.password
, ssid
->eap
.password_len
);
1105 buf
= os_malloc(5 + 32 + 1);
1109 os_memcpy(buf
, "hash:", 5);
1110 wpa_snprintf_hex(buf
+ 5, 32 + 1, ssid
->eap
.password
, 16);
1114 #endif /* IEEE8021X_EAPOL */
1117 static int wpa_config_parse_wep_key(u8
*key
, size_t *len
, int line
,
1118 const char *value
, int idx
)
1120 char *buf
, title
[20];
1123 buf
= wpa_config_parse_string(value
, len
);
1125 wpa_printf(MSG_ERROR
, "Line %d: Invalid WEP key %d '%s'.",
1129 if (*len
> MAX_WEP_KEY_LEN
) {
1130 wpa_printf(MSG_ERROR
, "Line %d: Too long WEP key %d '%s'.",
1135 os_memcpy(key
, buf
, *len
);
1137 res
= os_snprintf(title
, sizeof(title
), "wep_key%d", idx
);
1138 if (res
>= 0 && (size_t) res
< sizeof(title
))
1139 wpa_hexdump_key(MSG_MSGDUMP
, title
, key
, *len
);
1144 static int wpa_config_parse_wep_key0(const struct parse_data
*data
,
1145 struct wpa_ssid
*ssid
, int line
,
1148 return wpa_config_parse_wep_key(ssid
->wep_key
[0],
1149 &ssid
->wep_key_len
[0], line
,
1154 static int wpa_config_parse_wep_key1(const struct parse_data
*data
,
1155 struct wpa_ssid
*ssid
, int line
,
1158 return wpa_config_parse_wep_key(ssid
->wep_key
[1],
1159 &ssid
->wep_key_len
[1], line
,
1164 static int wpa_config_parse_wep_key2(const struct parse_data
*data
,
1165 struct wpa_ssid
*ssid
, int line
,
1168 return wpa_config_parse_wep_key(ssid
->wep_key
[2],
1169 &ssid
->wep_key_len
[2], line
,
1174 static int wpa_config_parse_wep_key3(const struct parse_data
*data
,
1175 struct wpa_ssid
*ssid
, int line
,
1178 return wpa_config_parse_wep_key(ssid
->wep_key
[3],
1179 &ssid
->wep_key_len
[3], line
,
1184 #ifndef NO_CONFIG_WRITE
1185 static char * wpa_config_write_wep_key(struct wpa_ssid
*ssid
, int idx
)
1187 if (ssid
->wep_key_len
[idx
] == 0)
1189 return wpa_config_write_string(ssid
->wep_key
[idx
],
1190 ssid
->wep_key_len
[idx
]);
1194 static char * wpa_config_write_wep_key0(const struct parse_data
*data
,
1195 struct wpa_ssid
*ssid
)
1197 return wpa_config_write_wep_key(ssid
, 0);
1201 static char * wpa_config_write_wep_key1(const struct parse_data
*data
,
1202 struct wpa_ssid
*ssid
)
1204 return wpa_config_write_wep_key(ssid
, 1);
1208 static char * wpa_config_write_wep_key2(const struct parse_data
*data
,
1209 struct wpa_ssid
*ssid
)
1211 return wpa_config_write_wep_key(ssid
, 2);
1215 static char * wpa_config_write_wep_key3(const struct parse_data
*data
,
1216 struct wpa_ssid
*ssid
)
1218 return wpa_config_write_wep_key(ssid
, 3);
1220 #endif /* NO_CONFIG_WRITE */
1223 /* Helper macros for network block parser */
1228 /* OFFSET: Get offset of a variable within the wpa_ssid structure */
1229 #define OFFSET(v) ((void *) &((struct wpa_ssid *) 0)->v)
1231 /* STR: Define a string variable for an ASCII string; f = field name */
1232 #ifdef NO_CONFIG_WRITE
1233 #define _STR(f) #f, wpa_config_parse_str, OFFSET(f)
1234 #define _STRe(f) #f, wpa_config_parse_str, OFFSET(eap.f)
1235 #else /* NO_CONFIG_WRITE */
1236 #define _STR(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(f)
1237 #define _STRe(f) #f, wpa_config_parse_str, wpa_config_write_str, OFFSET(eap.f)
1238 #endif /* NO_CONFIG_WRITE */
1239 #define STR(f) _STR(f), NULL, NULL, NULL, 0
1240 #define STRe(f) _STRe(f), NULL, NULL, NULL, 0
1241 #define STR_KEY(f) _STR(f), NULL, NULL, NULL, 1
1242 #define STR_KEYe(f) _STRe(f), NULL, NULL, NULL, 1
1244 /* STR_LEN: Define a string variable with a separate variable for storing the
1245 * data length. Unlike STR(), this can be used to store arbitrary binary data
1246 * (i.e., even nul termination character). */
1247 #define _STR_LEN(f) _STR(f), OFFSET(f ## _len)
1248 #define _STR_LENe(f) _STRe(f), OFFSET(eap.f ## _len)
1249 #define STR_LEN(f) _STR_LEN(f), NULL, NULL, 0
1250 #define STR_LENe(f) _STR_LENe(f), NULL, NULL, 0
1251 #define STR_LEN_KEY(f) _STR_LEN(f), NULL, NULL, 1
1253 /* STR_RANGE: Like STR_LEN(), but with minimum and maximum allowed length
1254 * explicitly specified. */
1255 #define _STR_RANGE(f, min, max) _STR_LEN(f), (void *) (min), (void *) (max)
1256 #define STR_RANGE(f, min, max) _STR_RANGE(f, min, max), 0
1257 #define STR_RANGE_KEY(f, min, max) _STR_RANGE(f, min, max), 1
1259 #ifdef NO_CONFIG_WRITE
1260 #define _INT(f) #f, wpa_config_parse_int, OFFSET(f), (void *) 0
1261 #define _INTe(f) #f, wpa_config_parse_int, OFFSET(eap.f), (void *) 0
1262 #else /* NO_CONFIG_WRITE */
1263 #define _INT(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1264 OFFSET(f), (void *) 0
1265 #define _INTe(f) #f, wpa_config_parse_int, wpa_config_write_int, \
1266 OFFSET(eap.f), (void *) 0
1267 #endif /* NO_CONFIG_WRITE */
1269 /* INT: Define an integer variable */
1270 #define INT(f) _INT(f), NULL, NULL, 0
1271 #define INTe(f) _INTe(f), NULL, NULL, 0
1273 /* INT_RANGE: Define an integer variable with allowed value range */
1274 #define INT_RANGE(f, min, max) _INT(f), (void *) (min), (void *) (max), 0
1276 /* FUNC: Define a configuration variable that uses a custom function for
1277 * parsing and writing the value. */
1278 #ifdef NO_CONFIG_WRITE
1279 #define _FUNC(f) #f, wpa_config_parse_ ## f, NULL, NULL, NULL, NULL
1280 #else /* NO_CONFIG_WRITE */
1281 #define _FUNC(f) #f, wpa_config_parse_ ## f, wpa_config_write_ ## f, \
1282 NULL, NULL, NULL, NULL
1283 #endif /* NO_CONFIG_WRITE */
1284 #define FUNC(f) _FUNC(f), 0
1285 #define FUNC_KEY(f) _FUNC(f), 1
1288 * Table of network configuration variables. This table is used to parse each
1289 * network configuration variable, e.g., each line in wpa_supplicant.conf file
1290 * that is inside a network block.
1292 * This table is generated using the helper macros defined above and with
1293 * generous help from the C pre-processor. The field name is stored as a string
1294 * into .name and for STR and INT types, the offset of the target buffer within
1295 * struct wpa_ssid is stored in .param1. .param2 (if not NULL) is similar
1296 * offset to the field containing the length of the configuration variable.
1297 * .param3 and .param4 can be used to mark the allowed range (length for STR
1298 * and value for INT).
1300 * For each configuration line in wpa_supplicant.conf, the parser goes through
1301 * this table and select the entry that matches with the field name. The parser
1302 * function (.parser) is then called to parse the actual value of the field.
1304 * This kind of mechanism makes it easy to add new configuration parameters,
1305 * since only one line needs to be added into this table and into the
1306 * struct wpa_ssid definition if the new variable is either a string or
1307 * integer. More complex types will need to use their own parser and writer
1310 static const struct parse_data ssid_fields
[] = {
1311 { STR_RANGE(ssid
, 0, MAX_SSID_LEN
) },
1312 { INT_RANGE(scan_ssid
, 0, 1) },
1320 #ifdef IEEE8021X_EAPOL
1322 { STR_LENe(identity
) },
1323 { STR_LENe(anonymous_identity
) },
1324 { FUNC_KEY(password
) },
1327 { STRe(client_cert
) },
1328 { STRe(private_key
) },
1329 { STR_KEYe(private_key_passwd
) },
1331 { STRe(subject_match
) },
1332 { STRe(altsubject_match
) },
1335 { STRe(client_cert2
) },
1336 { STRe(private_key2
) },
1337 { STR_KEYe(private_key2_passwd
) },
1339 { STRe(subject_match2
) },
1340 { STRe(altsubject_match2
) },
1345 { STRe(engine_id
) },
1348 { STRe(ca_cert_id
) },
1350 { STRe(engine2_id
) },
1353 { STRe(ca_cert2_id
) },
1356 { INT(eapol_flags
) },
1357 #endif /* IEEE8021X_EAPOL */
1358 { FUNC_KEY(wep_key0
) },
1359 { FUNC_KEY(wep_key1
) },
1360 { FUNC_KEY(wep_key2
) },
1361 { FUNC_KEY(wep_key3
) },
1362 { INT(wep_tx_keyidx
) },
1364 #ifdef IEEE8021X_EAPOL
1365 { INT(eap_workaround
) },
1367 { INTe(fragment_size
) },
1368 #endif /* IEEE8021X_EAPOL */
1369 { INT_RANGE(mode
, 0, 2) },
1370 { INT_RANGE(proactive_key_caching
, 0, 1) },
1371 { INT_RANGE(disabled
, 0, 1) },
1373 #ifdef CONFIG_IEEE80211W
1374 { INT_RANGE(ieee80211w
, 0, 2) },
1375 #endif /* CONFIG_IEEE80211W */
1376 { INT_RANGE(peerkey
, 0, 1) },
1377 { INT_RANGE(mixed_cell
, 0, 1) },
1378 { INT_RANGE(frequency
, 0, 10000) },
1379 { INT(wpa_ptk_rekey
) }
1391 #undef STR_RANGE_KEY
1398 #define NUM_SSID_FIELDS (sizeof(ssid_fields) / sizeof(ssid_fields[0]))
1402 * wpa_config_add_prio_network - Add a network to priority lists
1403 * @config: Configuration data from wpa_config_read()
1404 * @ssid: Pointer to the network configuration to be added to the list
1405 * Returns: 0 on success, -1 on failure
1407 * This function is used to add a network block to the priority list of
1408 * networks. This must be called for each network when reading in the full
1409 * configuration. In addition, this can be used indirectly when updating
1410 * priorities by calling wpa_config_update_prio_list().
1412 int wpa_config_add_prio_network(struct wpa_config
*config
,
1413 struct wpa_ssid
*ssid
)
1416 struct wpa_ssid
*prev
, **nlist
;
1419 * Add to an existing priority list if one is available for the
1420 * configured priority level for this network.
1422 for (prio
= 0; prio
< config
->num_prio
; prio
++) {
1423 prev
= config
->pssid
[prio
];
1424 if (prev
->priority
== ssid
->priority
) {
1432 /* First network for this priority - add a new priority list */
1433 nlist
= os_realloc(config
->pssid
,
1434 (config
->num_prio
+ 1) * sizeof(struct wpa_ssid
*));
1438 for (prio
= 0; prio
< config
->num_prio
; prio
++) {
1439 if (nlist
[prio
]->priority
< ssid
->priority
)
1443 os_memmove(&nlist
[prio
+ 1], &nlist
[prio
],
1444 (config
->num_prio
- prio
) * sizeof(struct wpa_ssid
*));
1448 config
->pssid
= nlist
;
1455 * wpa_config_update_prio_list - Update network priority list
1456 * @config: Configuration data from wpa_config_read()
1457 * Returns: 0 on success, -1 on failure
1459 * This function is called to update the priority list of networks in the
1460 * configuration when a network is being added or removed. This is also called
1461 * if a priority for a network is changed.
1463 static int wpa_config_update_prio_list(struct wpa_config
*config
)
1465 struct wpa_ssid
*ssid
;
1468 os_free(config
->pssid
);
1469 config
->pssid
= NULL
;
1470 config
->num_prio
= 0;
1472 ssid
= config
->ssid
;
1475 if (wpa_config_add_prio_network(config
, ssid
) < 0)
1484 #ifdef IEEE8021X_EAPOL
1485 static void eap_peer_config_free(struct eap_peer_config
*eap
)
1487 os_free(eap
->eap_methods
);
1488 os_free(eap
->identity
);
1489 os_free(eap
->anonymous_identity
);
1490 os_free(eap
->password
);
1491 os_free(eap
->ca_cert
);
1492 os_free(eap
->ca_path
);
1493 os_free(eap
->client_cert
);
1494 os_free(eap
->private_key
);
1495 os_free(eap
->private_key_passwd
);
1496 os_free(eap
->dh_file
);
1497 os_free(eap
->subject_match
);
1498 os_free(eap
->altsubject_match
);
1499 os_free(eap
->ca_cert2
);
1500 os_free(eap
->ca_path2
);
1501 os_free(eap
->client_cert2
);
1502 os_free(eap
->private_key2
);
1503 os_free(eap
->private_key2_passwd
);
1504 os_free(eap
->dh_file2
);
1505 os_free(eap
->subject_match2
);
1506 os_free(eap
->altsubject_match2
);
1507 os_free(eap
->phase1
);
1508 os_free(eap
->phase2
);
1511 os_free(eap
->engine_id
);
1512 os_free(eap
->key_id
);
1513 os_free(eap
->cert_id
);
1514 os_free(eap
->ca_cert_id
);
1515 os_free(eap
->key2_id
);
1516 os_free(eap
->cert2_id
);
1517 os_free(eap
->ca_cert2_id
);
1519 os_free(eap
->engine2_id
);
1521 os_free(eap
->pending_req_otp
);
1522 os_free(eap
->pac_file
);
1523 os_free(eap
->new_password
);
1525 #endif /* IEEE8021X_EAPOL */
1529 * wpa_config_free_ssid - Free network/ssid configuration data
1530 * @ssid: Configuration data for the network
1532 * This function frees all resources allocated for the network configuration
1535 void wpa_config_free_ssid(struct wpa_ssid
*ssid
)
1537 os_free(ssid
->ssid
);
1538 os_free(ssid
->passphrase
);
1539 #ifdef IEEE8021X_EAPOL
1540 eap_peer_config_free(&ssid
->eap
);
1541 #endif /* IEEE8021X_EAPOL */
1542 os_free(ssid
->id_str
);
1548 * wpa_config_free - Free configuration data
1549 * @config: Configuration data from wpa_config_read()
1551 * This function frees all resources allocated for the configuration data by
1552 * wpa_config_read().
1554 void wpa_config_free(struct wpa_config
*config
)
1556 #ifndef CONFIG_NO_CONFIG_BLOBS
1557 struct wpa_config_blob
*blob
, *prevblob
;
1558 #endif /* CONFIG_NO_CONFIG_BLOBS */
1559 struct wpa_ssid
*ssid
, *prev
= NULL
;
1560 ssid
= config
->ssid
;
1564 wpa_config_free_ssid(prev
);
1567 #ifndef CONFIG_NO_CONFIG_BLOBS
1568 blob
= config
->blobs
;
1573 wpa_config_free_blob(prevblob
);
1575 #endif /* CONFIG_NO_CONFIG_BLOBS */
1577 os_free(config
->ctrl_interface
);
1578 os_free(config
->ctrl_interface_group
);
1579 #ifdef EAP_TLS_OPENSSL
1580 os_free(config
->opensc_engine_path
);
1581 os_free(config
->pkcs11_engine_path
);
1582 os_free(config
->pkcs11_module_path
);
1583 #endif /* EAP_TLS_OPENSSL */
1584 os_free(config
->driver_param
);
1585 os_free(config
->device_name
);
1586 os_free(config
->manufacturer
);
1587 os_free(config
->model_name
);
1588 os_free(config
->model_number
);
1589 os_free(config
->serial_number
);
1590 os_free(config
->device_type
);
1591 os_free(config
->pssid
);
1597 * wpa_config_get_network - Get configured network based on id
1598 * @config: Configuration data from wpa_config_read()
1599 * @id: Unique network id to search for
1600 * Returns: Network configuration or %NULL if not found
1602 struct wpa_ssid
* wpa_config_get_network(struct wpa_config
*config
, int id
)
1604 struct wpa_ssid
*ssid
;
1606 ssid
= config
->ssid
;
1618 * wpa_config_add_network - Add a new network with empty configuration
1619 * @config: Configuration data from wpa_config_read()
1620 * Returns: The new network configuration or %NULL if operation failed
1622 struct wpa_ssid
* wpa_config_add_network(struct wpa_config
*config
)
1625 struct wpa_ssid
*ssid
, *last
= NULL
;
1628 ssid
= config
->ssid
;
1637 ssid
= os_zalloc(sizeof(*ssid
));
1644 config
->ssid
= ssid
;
1646 wpa_config_update_prio_list(config
);
1653 * wpa_config_remove_network - Remove a configured network based on id
1654 * @config: Configuration data from wpa_config_read()
1655 * @id: Unique network id to search for
1656 * Returns: 0 on success, or -1 if the network was not found
1658 int wpa_config_remove_network(struct wpa_config
*config
, int id
)
1660 struct wpa_ssid
*ssid
, *prev
= NULL
;
1662 ssid
= config
->ssid
;
1674 prev
->next
= ssid
->next
;
1676 config
->ssid
= ssid
->next
;
1678 wpa_config_update_prio_list(config
);
1679 wpa_config_free_ssid(ssid
);
1685 * wpa_config_set_network_defaults - Set network default values
1686 * @ssid: Pointer to network configuration data
1688 void wpa_config_set_network_defaults(struct wpa_ssid
*ssid
)
1690 ssid
->proto
= DEFAULT_PROTO
;
1691 ssid
->pairwise_cipher
= DEFAULT_PAIRWISE
;
1692 ssid
->group_cipher
= DEFAULT_GROUP
;
1693 ssid
->key_mgmt
= DEFAULT_KEY_MGMT
;
1694 #ifdef IEEE8021X_EAPOL
1695 ssid
->eapol_flags
= DEFAULT_EAPOL_FLAGS
;
1696 ssid
->eap_workaround
= DEFAULT_EAP_WORKAROUND
;
1697 ssid
->eap
.fragment_size
= DEFAULT_FRAGMENT_SIZE
;
1698 #endif /* IEEE8021X_EAPOL */
1703 * wpa_config_set - Set a variable in network configuration
1704 * @ssid: Pointer to network configuration data
1705 * @var: Variable name, e.g., "ssid"
1706 * @value: Variable value
1707 * @line: Line number in configuration file or 0 if not used
1708 * Returns: 0 on success, -1 on failure
1710 * This function can be used to set network configuration variables based on
1711 * both the configuration file and management interface input. The value
1712 * parameter must be in the same format as the text-based configuration file is
1713 * using. For example, strings are using double quotation marks.
1715 int wpa_config_set(struct wpa_ssid
*ssid
, const char *var
, const char *value
,
1721 if (ssid
== NULL
|| var
== NULL
|| value
== NULL
)
1724 for (i
= 0; i
< NUM_SSID_FIELDS
; i
++) {
1725 const struct parse_data
*field
= &ssid_fields
[i
];
1726 if (os_strcmp(var
, field
->name
) != 0)
1729 if (field
->parser(field
, ssid
, line
, value
)) {
1731 wpa_printf(MSG_ERROR
, "Line %d: failed to "
1732 "parse %s '%s'.", line
, var
, value
);
1738 if (i
== NUM_SSID_FIELDS
) {
1740 wpa_printf(MSG_ERROR
, "Line %d: unknown network field "
1741 "'%s'.", line
, var
);
1750 #ifndef NO_CONFIG_WRITE
1752 * wpa_config_get - Get a variable in network configuration
1753 * @ssid: Pointer to network configuration data
1754 * @var: Variable name, e.g., "ssid"
1755 * Returns: Value of the variable or %NULL on failure
1757 * This function can be used to get network configuration variables. The
1758 * returned value is a copy of the configuration variable in text format, i.e,.
1759 * the same format that the text-based configuration file and wpa_config_set()
1760 * are using for the value. The caller is responsible for freeing the returned
1763 char * wpa_config_get(struct wpa_ssid
*ssid
, const char *var
)
1767 if (ssid
== NULL
|| var
== NULL
)
1770 for (i
= 0; i
< NUM_SSID_FIELDS
; i
++) {
1771 const struct parse_data
*field
= &ssid_fields
[i
];
1772 if (os_strcmp(var
, field
->name
) == 0)
1773 return field
->writer(field
, ssid
);
1781 * wpa_config_get_no_key - Get a variable in network configuration (no keys)
1782 * @ssid: Pointer to network configuration data
1783 * @var: Variable name, e.g., "ssid"
1784 * Returns: Value of the variable or %NULL on failure
1786 * This function can be used to get network configuration variable like
1787 * wpa_config_get(). The only difference is that this functions does not expose
1788 * key/password material from the configuration. In case a key/password field
1789 * is requested, the returned value is an empty string or %NULL if the variable
1790 * is not set or "*" if the variable is set (regardless of its value). The
1791 * returned value is a copy of the configuration variable in text format, i.e,.
1792 * the same format that the text-based configuration file and wpa_config_set()
1793 * are using for the value. The caller is responsible for freeing the returned
1796 char * wpa_config_get_no_key(struct wpa_ssid
*ssid
, const char *var
)
1800 if (ssid
== NULL
|| var
== NULL
)
1803 for (i
= 0; i
< NUM_SSID_FIELDS
; i
++) {
1804 const struct parse_data
*field
= &ssid_fields
[i
];
1805 if (os_strcmp(var
, field
->name
) == 0) {
1806 char *res
= field
->writer(field
, ssid
);
1807 if (field
->key_data
) {
1808 if (res
&& res
[0]) {
1809 wpa_printf(MSG_DEBUG
, "Do not allow "
1810 "key_data field to be "
1813 return os_strdup("*");
1825 #endif /* NO_CONFIG_WRITE */
1829 * wpa_config_update_psk - Update WPA PSK based on passphrase and SSID
1830 * @ssid: Pointer to network configuration data
1832 * This function must be called to update WPA PSK when either SSID or the
1833 * passphrase has changed for the network configuration.
1835 void wpa_config_update_psk(struct wpa_ssid
*ssid
)
1837 #ifndef CONFIG_NO_PBKDF2
1838 pbkdf2_sha1(ssid
->passphrase
,
1839 (char *) ssid
->ssid
, ssid
->ssid_len
, 4096,
1840 ssid
->psk
, PMK_LEN
);
1841 wpa_hexdump_key(MSG_MSGDUMP
, "PSK (from passphrase)",
1842 ssid
->psk
, PMK_LEN
);
1844 #endif /* CONFIG_NO_PBKDF2 */
1848 #ifndef CONFIG_NO_CONFIG_BLOBS
1850 * wpa_config_get_blob - Get a named configuration blob
1851 * @config: Configuration data from wpa_config_read()
1852 * @name: Name of the blob
1853 * Returns: Pointer to blob data or %NULL if not found
1855 const struct wpa_config_blob
* wpa_config_get_blob(struct wpa_config
*config
,
1858 struct wpa_config_blob
*blob
= config
->blobs
;
1861 if (os_strcmp(blob
->name
, name
) == 0)
1870 * wpa_config_set_blob - Set or add a named configuration blob
1871 * @config: Configuration data from wpa_config_read()
1872 * @blob: New value for the blob
1874 * Adds a new configuration blob or replaces the current value of an existing
1877 void wpa_config_set_blob(struct wpa_config
*config
,
1878 struct wpa_config_blob
*blob
)
1880 wpa_config_remove_blob(config
, blob
->name
);
1881 blob
->next
= config
->blobs
;
1882 config
->blobs
= blob
;
1887 * wpa_config_free_blob - Free blob data
1888 * @blob: Pointer to blob to be freed
1890 void wpa_config_free_blob(struct wpa_config_blob
*blob
)
1893 os_free(blob
->name
);
1894 os_free(blob
->data
);
1901 * wpa_config_remove_blob - Remove a named configuration blob
1902 * @config: Configuration data from wpa_config_read()
1903 * @name: Name of the blob to remove
1904 * Returns: 0 if blob was removed or -1 if blob was not found
1906 int wpa_config_remove_blob(struct wpa_config
*config
, const char *name
)
1908 struct wpa_config_blob
*pos
= config
->blobs
, *prev
= NULL
;
1911 if (os_strcmp(pos
->name
, name
) == 0) {
1913 prev
->next
= pos
->next
;
1915 config
->blobs
= pos
->next
;
1916 wpa_config_free_blob(pos
);
1925 #endif /* CONFIG_NO_CONFIG_BLOBS */
1929 * wpa_config_alloc_empty - Allocate an empty configuration
1930 * @ctrl_interface: Control interface parameters, e.g., path to UNIX domain
1932 * @driver_param: Driver parameters
1933 * Returns: Pointer to allocated configuration data or %NULL on failure
1935 struct wpa_config
* wpa_config_alloc_empty(const char *ctrl_interface
,
1936 const char *driver_param
)
1938 struct wpa_config
*config
;
1940 config
= os_zalloc(sizeof(*config
));
1943 config
->eapol_version
= DEFAULT_EAPOL_VERSION
;
1944 config
->ap_scan
= DEFAULT_AP_SCAN
;
1945 config
->fast_reauth
= DEFAULT_FAST_REAUTH
;
1948 config
->ctrl_interface
= os_strdup(ctrl_interface
);
1950 config
->driver_param
= os_strdup(driver_param
);
1956 #ifndef CONFIG_NO_STDOUT_DEBUG
1958 * wpa_config_debug_dump_networks - Debug dump of configured networks
1959 * @config: Configuration data from wpa_config_read()
1961 void wpa_config_debug_dump_networks(struct wpa_config
*config
)
1964 struct wpa_ssid
*ssid
;
1966 for (prio
= 0; prio
< config
->num_prio
; prio
++) {
1967 ssid
= config
->pssid
[prio
];
1968 wpa_printf(MSG_DEBUG
, "Priority group %d",
1971 wpa_printf(MSG_DEBUG
, " id=%d ssid='%s'",
1973 wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
));
1978 #endif /* CONFIG_NO_STDOUT_DEBUG */