2 * hostapd / Configuration helper functions
3 * Copyright (c) 2003-2013, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
9 #include "utils/includes.h"
11 #include "utils/common.h"
12 #include "crypto/sha1.h"
13 #include "radius/radius_client.h"
14 #include "common/ieee802_11_defs.h"
15 #include "common/eapol_common.h"
16 #include "eap_common/eap_wsc_common.h"
17 #include "eap_server/eap.h"
20 #include "ap_config.h"
23 static void hostapd_config_free_vlan(struct hostapd_bss_config
*bss
)
25 struct hostapd_vlan
*vlan
, *prev
;
39 void hostapd_config_defaults_bss(struct hostapd_bss_config
*bss
)
41 bss
->logger_syslog_level
= HOSTAPD_LEVEL_INFO
;
42 bss
->logger_stdout_level
= HOSTAPD_LEVEL_INFO
;
43 bss
->logger_syslog
= (unsigned int) -1;
44 bss
->logger_stdout
= (unsigned int) -1;
46 bss
->auth_algs
= WPA_AUTH_ALG_OPEN
| WPA_AUTH_ALG_SHARED
;
48 bss
->wep_rekeying_period
= 300;
49 /* use key0 in individual key and key1 in broadcast key */
50 bss
->broadcast_key_idx_min
= 1;
51 bss
->broadcast_key_idx_max
= 2;
52 bss
->eap_reauth_period
= 3600;
54 bss
->wpa_group_rekey
= 600;
55 bss
->wpa_gmk_rekey
= 86400;
56 bss
->wpa_key_mgmt
= WPA_KEY_MGMT_PSK
;
57 bss
->wpa_pairwise
= WPA_CIPHER_TKIP
;
58 bss
->wpa_group
= WPA_CIPHER_TKIP
;
59 bss
->rsn_pairwise
= 0;
61 bss
->max_num_sta
= MAX_STA_COUNT
;
65 bss
->radius_server_auth_port
= 1812;
66 bss
->ap_max_inactivity
= AP_MAX_INACTIVITY
;
67 bss
->eapol_version
= EAPOL_VERSION
;
69 bss
->max_listen_interval
= 65535;
71 bss
->pwd_group
= 19; /* ECC: GF(p=256) */
73 #ifdef CONFIG_IEEE80211W
74 bss
->assoc_sa_query_max_timeout
= 1000;
75 bss
->assoc_sa_query_retry_timeout
= 201;
76 #endif /* CONFIG_IEEE80211W */
77 #ifdef EAP_SERVER_FAST
78 /* both anonymous and authenticated provisioning */
79 bss
->eap_fast_prov
= 3;
80 bss
->pac_key_lifetime
= 7 * 24 * 60 * 60;
81 bss
->pac_key_refresh_time
= 1 * 24 * 60 * 60;
82 #endif /* EAP_SERVER_FAST */
84 /* Set to -1 as defaults depends on HT in setup */
85 bss
->wmm_enabled
= -1;
87 #ifdef CONFIG_IEEE80211R
89 #endif /* CONFIG_IEEE80211R */
91 bss
->radius_das_time_window
= 300;
93 bss
->sae_anti_clogging_threshold
= 5;
97 struct hostapd_config
* hostapd_config_defaults(void)
99 #define ecw2cw(ecw) ((1 << (ecw)) - 1)
101 struct hostapd_config
*conf
;
102 struct hostapd_bss_config
*bss
;
103 const int aCWmin
= 4, aCWmax
= 10;
104 const struct hostapd_wmm_ac_params ac_bk
=
105 { aCWmin
, aCWmax
, 7, 0, 0 }; /* background traffic */
106 const struct hostapd_wmm_ac_params ac_be
=
107 { aCWmin
, aCWmax
, 3, 0, 0 }; /* best effort traffic */
108 const struct hostapd_wmm_ac_params ac_vi
= /* video traffic */
109 { aCWmin
- 1, aCWmin
, 2, 3000 / 32, 0 };
110 const struct hostapd_wmm_ac_params ac_vo
= /* voice traffic */
111 { aCWmin
- 2, aCWmin
- 1, 2, 1500 / 32, 0 };
112 const struct hostapd_tx_queue_params txq_bk
=
113 { 7, ecw2cw(aCWmin
), ecw2cw(aCWmax
), 0 };
114 const struct hostapd_tx_queue_params txq_be
=
115 { 3, ecw2cw(aCWmin
), 4 * (ecw2cw(aCWmin
) + 1) - 1, 0};
116 const struct hostapd_tx_queue_params txq_vi
=
117 { 1, (ecw2cw(aCWmin
) + 1) / 2 - 1, ecw2cw(aCWmin
), 30};
118 const struct hostapd_tx_queue_params txq_vo
=
119 { 1, (ecw2cw(aCWmin
) + 1) / 4 - 1,
120 (ecw2cw(aCWmin
) + 1) / 2 - 1, 15};
124 conf
= os_zalloc(sizeof(*conf
));
125 bss
= os_zalloc(sizeof(*bss
));
126 if (conf
== NULL
|| bss
== NULL
) {
127 wpa_printf(MSG_ERROR
, "Failed to allocate memory for "
128 "configuration data.");
133 conf
->bss
= os_calloc(1, sizeof(struct hostapd_bss_config
*));
134 if (conf
->bss
== NULL
) {
141 bss
->radius
= os_zalloc(sizeof(*bss
->radius
));
142 if (bss
->radius
== NULL
) {
148 hostapd_config_defaults_bss(bss
);
152 conf
->beacon_int
= 100;
153 conf
->rts_threshold
= -1; /* use driver default: 2347 */
154 conf
->fragm_threshold
= -1; /* user driver default: 2346 */
155 conf
->send_probe_response
= 1;
157 conf
->wmm_ac_params
[0] = ac_be
;
158 conf
->wmm_ac_params
[1] = ac_bk
;
159 conf
->wmm_ac_params
[2] = ac_vi
;
160 conf
->wmm_ac_params
[3] = ac_vo
;
162 conf
->tx_queue
[0] = txq_vo
;
163 conf
->tx_queue
[1] = txq_vi
;
164 conf
->tx_queue
[2] = txq_be
;
165 conf
->tx_queue
[3] = txq_bk
;
167 conf
->ht_capab
= HT_CAP_INFO_SMPS_DISABLED
;
169 conf
->ap_table_max_size
= 255;
170 conf
->ap_table_expiration_time
= 60;
172 #ifdef CONFIG_TESTING_OPTIONS
173 conf
->ignore_probe_probability
= 0.0d
;
174 conf
->ignore_auth_probability
= 0.0d
;
175 conf
->ignore_assoc_probability
= 0.0d
;
176 conf
->ignore_reassoc_probability
= 0.0d
;
177 conf
->corrupt_gtk_rekey_mic_probability
= 0.0d
;
178 #endif /* CONFIG_TESTING_OPTIONS */
181 conf
->acs_num_scans
= 5;
182 #endif /* CONFIG_ACS */
188 int hostapd_mac_comp(const void *a
, const void *b
)
190 return os_memcmp(a
, b
, sizeof(macaddr
));
194 int hostapd_mac_comp_empty(const void *a
)
196 macaddr empty
= { 0 };
197 return os_memcmp(a
, empty
, sizeof(macaddr
));
201 static int hostapd_config_read_wpa_psk(const char *fname
,
202 struct hostapd_ssid
*ssid
)
206 int line
= 0, ret
= 0, len
, ok
;
208 struct hostapd_wpa_psk
*psk
;
213 f
= fopen(fname
, "r");
215 wpa_printf(MSG_ERROR
, "WPA PSK file '%s' not found.", fname
);
219 while (fgets(buf
, sizeof(buf
), f
)) {
225 while (*pos
!= '\0') {
235 if (hwaddr_aton(buf
, addr
)) {
236 wpa_printf(MSG_ERROR
, "Invalid MAC address '%s' on "
237 "line %d in '%s'", buf
, line
, fname
);
242 psk
= os_zalloc(sizeof(*psk
));
244 wpa_printf(MSG_ERROR
, "WPA PSK allocation failed");
248 if (is_zero_ether_addr(addr
))
251 os_memcpy(psk
->addr
, addr
, ETH_ALEN
);
255 wpa_printf(MSG_ERROR
, "No PSK on line %d in '%s'",
264 len
= os_strlen(pos
);
265 if (len
== 64 && hexstr2bin(pos
, psk
->psk
, PMK_LEN
) == 0)
267 else if (len
>= 8 && len
< 64) {
268 pbkdf2_sha1(pos
, ssid
->ssid
, ssid
->ssid_len
,
269 4096, psk
->psk
, PMK_LEN
);
273 wpa_printf(MSG_ERROR
, "Invalid PSK '%s' on line %d in "
274 "'%s'", pos
, line
, fname
);
280 psk
->next
= ssid
->wpa_psk
;
290 static int hostapd_derive_psk(struct hostapd_ssid
*ssid
)
292 ssid
->wpa_psk
= os_zalloc(sizeof(struct hostapd_wpa_psk
));
293 if (ssid
->wpa_psk
== NULL
) {
294 wpa_printf(MSG_ERROR
, "Unable to alloc space for PSK");
297 wpa_hexdump_ascii(MSG_DEBUG
, "SSID",
298 (u8
*) ssid
->ssid
, ssid
->ssid_len
);
299 wpa_hexdump_ascii_key(MSG_DEBUG
, "PSK (ASCII passphrase)",
300 (u8
*) ssid
->wpa_passphrase
,
301 os_strlen(ssid
->wpa_passphrase
));
302 pbkdf2_sha1(ssid
->wpa_passphrase
,
303 ssid
->ssid
, ssid
->ssid_len
,
304 4096, ssid
->wpa_psk
->psk
, PMK_LEN
);
305 wpa_hexdump_key(MSG_DEBUG
, "PSK (from passphrase)",
306 ssid
->wpa_psk
->psk
, PMK_LEN
);
311 int hostapd_setup_wpa_psk(struct hostapd_bss_config
*conf
)
313 struct hostapd_ssid
*ssid
= &conf
->ssid
;
315 if (ssid
->wpa_passphrase
!= NULL
) {
316 if (ssid
->wpa_psk
!= NULL
) {
317 wpa_printf(MSG_DEBUG
, "Using pre-configured WPA PSK "
318 "instead of passphrase");
320 wpa_printf(MSG_DEBUG
, "Deriving WPA PSK based on "
322 if (hostapd_derive_psk(ssid
) < 0)
325 ssid
->wpa_psk
->group
= 1;
328 if (ssid
->wpa_psk_file
) {
329 if (hostapd_config_read_wpa_psk(ssid
->wpa_psk_file
,
338 int hostapd_wep_key_cmp(struct hostapd_wep_keys
*a
, struct hostapd_wep_keys
*b
)
342 if (a
->idx
!= b
->idx
|| a
->default_len
!= b
->default_len
)
344 for (i
= 0; i
< NUM_WEP_KEYS
; i
++)
345 if (a
->len
[i
] != b
->len
[i
] ||
346 os_memcmp(a
->key
[i
], b
->key
[i
], a
->len
[i
]) != 0)
352 static void hostapd_config_free_radius(struct hostapd_radius_server
*servers
,
357 for (i
= 0; i
< num_servers
; i
++) {
358 os_free(servers
[i
].shared_secret
);
364 struct hostapd_radius_attr
*
365 hostapd_config_get_radius_attr(struct hostapd_radius_attr
*attr
, u8 type
)
367 for (; attr
; attr
= attr
->next
) {
368 if (attr
->type
== type
)
375 static void hostapd_config_free_radius_attr(struct hostapd_radius_attr
*attr
)
377 struct hostapd_radius_attr
*prev
;
382 wpabuf_free(prev
->val
);
388 static void hostapd_config_free_eap_user(struct hostapd_eap_user
*user
)
390 os_free(user
->identity
);
391 os_free(user
->password
);
396 static void hostapd_config_free_wep(struct hostapd_wep_keys
*keys
)
399 for (i
= 0; i
< NUM_WEP_KEYS
; i
++) {
400 os_free(keys
->key
[i
]);
406 static void hostapd_config_free_bss(struct hostapd_bss_config
*conf
)
408 struct hostapd_wpa_psk
*psk
, *prev
;
409 struct hostapd_eap_user
*user
, *prev_user
;
414 psk
= conf
->ssid
.wpa_psk
;
421 os_free(conf
->ssid
.wpa_passphrase
);
422 os_free(conf
->ssid
.wpa_psk_file
);
423 hostapd_config_free_wep(&conf
->ssid
.wep
);
424 #ifdef CONFIG_FULL_DYNAMIC_VLAN
425 os_free(conf
->ssid
.vlan_tagged_interface
);
426 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
428 user
= conf
->eap_user
;
432 hostapd_config_free_eap_user(prev_user
);
434 os_free(conf
->eap_user_sqlite
);
436 os_free(conf
->dump_log_name
);
437 os_free(conf
->eap_req_id_text
);
438 os_free(conf
->accept_mac
);
439 os_free(conf
->deny_mac
);
440 os_free(conf
->nas_identifier
);
442 hostapd_config_free_radius(conf
->radius
->auth_servers
,
443 conf
->radius
->num_auth_servers
);
444 hostapd_config_free_radius(conf
->radius
->acct_servers
,
445 conf
->radius
->num_acct_servers
);
447 hostapd_config_free_radius_attr(conf
->radius_auth_req_attr
);
448 hostapd_config_free_radius_attr(conf
->radius_acct_req_attr
);
449 os_free(conf
->rsn_preauth_interfaces
);
450 os_free(conf
->ctrl_interface
);
451 os_free(conf
->ca_cert
);
452 os_free(conf
->server_cert
);
453 os_free(conf
->private_key
);
454 os_free(conf
->private_key_passwd
);
455 os_free(conf
->ocsp_stapling_response
);
456 os_free(conf
->dh_file
);
457 os_free(conf
->pac_opaque_encr_key
);
458 os_free(conf
->eap_fast_a_id
);
459 os_free(conf
->eap_fast_a_id_info
);
460 os_free(conf
->eap_sim_db
);
461 os_free(conf
->radius_server_clients
);
462 os_free(conf
->test_socket
);
463 os_free(conf
->radius
);
464 os_free(conf
->radius_das_shared_secret
);
465 hostapd_config_free_vlan(conf
);
466 os_free(conf
->time_zone
);
468 #ifdef CONFIG_IEEE80211R
470 struct ft_remote_r0kh
*r0kh
, *r0kh_prev
;
471 struct ft_remote_r1kh
*r1kh
, *r1kh_prev
;
473 r0kh
= conf
->r0kh_list
;
474 conf
->r0kh_list
= NULL
;
481 r1kh
= conf
->r1kh_list
;
482 conf
->r1kh_list
= NULL
;
489 #endif /* CONFIG_IEEE80211R */
492 os_free(conf
->wps_pin_requests
);
493 os_free(conf
->device_name
);
494 os_free(conf
->manufacturer
);
495 os_free(conf
->model_name
);
496 os_free(conf
->model_number
);
497 os_free(conf
->serial_number
);
498 os_free(conf
->config_methods
);
499 os_free(conf
->ap_pin
);
500 os_free(conf
->extra_cred
);
501 os_free(conf
->ap_settings
);
502 os_free(conf
->upnp_iface
);
503 os_free(conf
->friendly_name
);
504 os_free(conf
->manufacturer_url
);
505 os_free(conf
->model_description
);
506 os_free(conf
->model_url
);
508 wpabuf_free(conf
->wps_nfc_dh_pubkey
);
509 wpabuf_free(conf
->wps_nfc_dh_privkey
);
510 wpabuf_free(conf
->wps_nfc_dev_pw
);
511 #endif /* CONFIG_WPS */
513 os_free(conf
->roaming_consortium
);
514 os_free(conf
->venue_name
);
515 os_free(conf
->nai_realm_data
);
516 os_free(conf
->network_auth_type
);
517 os_free(conf
->anqp_3gpp_cell_net
);
518 os_free(conf
->domain_name
);
520 #ifdef CONFIG_RADIUS_TEST
521 os_free(conf
->dump_msk_file
);
522 #endif /* CONFIG_RADIUS_TEST */
525 os_free(conf
->hs20_oper_friendly_name
);
526 os_free(conf
->hs20_wan_metrics
);
527 os_free(conf
->hs20_connection_capability
);
528 os_free(conf
->hs20_operating_class
);
529 #endif /* CONFIG_HS20 */
531 wpabuf_free(conf
->vendor_elements
);
533 os_free(conf
->sae_groups
);
535 os_free(conf
->server_id
);
542 * hostapd_config_free - Free hostapd configuration
543 * @conf: Configuration data from hostapd_config_read().
545 void hostapd_config_free(struct hostapd_config
*conf
)
552 for (i
= 0; i
< conf
->num_bss
; i
++)
553 hostapd_config_free_bss(conf
->bss
[i
]);
555 os_free(conf
->supported_rates
);
556 os_free(conf
->basic_rates
);
563 * hostapd_maclist_found - Find a MAC address from a list
564 * @list: MAC address list
565 * @num_entries: Number of addresses in the list
566 * @addr: Address to search for
567 * @vlan_id: Buffer for returning VLAN ID or %NULL if not needed
568 * Returns: 1 if address is in the list or 0 if not.
570 * Perform a binary search for given MAC address from a pre-sorted list.
572 int hostapd_maclist_found(struct mac_acl_entry
*list
, int num_entries
,
573 const u8
*addr
, int *vlan_id
)
575 int start
, end
, middle
, res
;
578 end
= num_entries
- 1;
580 while (start
<= end
) {
581 middle
= (start
+ end
) / 2;
582 res
= os_memcmp(list
[middle
].addr
, addr
, ETH_ALEN
);
585 *vlan_id
= list
[middle
].vlan_id
;
598 int hostapd_rate_found(int *list
, int rate
)
605 for (i
= 0; list
[i
] >= 0; i
++)
613 int hostapd_vlan_id_valid(struct hostapd_vlan
*vlan
, int vlan_id
)
615 struct hostapd_vlan
*v
= vlan
;
617 if (v
->vlan_id
== vlan_id
|| v
->vlan_id
== VLAN_ID_WILDCARD
)
625 const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan
*vlan
, int vlan_id
)
627 struct hostapd_vlan
*v
= vlan
;
629 if (v
->vlan_id
== vlan_id
)
637 const u8
* hostapd_get_psk(const struct hostapd_bss_config
*conf
,
638 const u8
*addr
, const u8
*p2p_dev_addr
,
641 struct hostapd_wpa_psk
*psk
;
642 int next_ok
= prev_psk
== NULL
;
645 wpa_printf(MSG_DEBUG
, "Searching a PSK for " MACSTR
646 " p2p_dev_addr=" MACSTR
" prev_psk=%p",
647 MAC2STR(addr
), MAC2STR(p2p_dev_addr
), prev_psk
);
648 if (!is_zero_ether_addr(p2p_dev_addr
))
649 addr
= NULL
; /* Use P2P Device Address for matching */
651 wpa_printf(MSG_DEBUG
, "Searching a PSK for " MACSTR
653 MAC2STR(addr
), prev_psk
);
656 for (psk
= conf
->ssid
.wpa_psk
; psk
!= NULL
; psk
= psk
->next
) {
659 (addr
&& os_memcmp(psk
->addr
, addr
, ETH_ALEN
) == 0) ||
660 (!addr
&& p2p_dev_addr
&&
661 os_memcmp(psk
->p2p_dev_addr
, p2p_dev_addr
, ETH_ALEN
) ==
665 if (psk
->psk
== prev_psk
)