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hostapd: Support Multi-AP backhaul STA onboarding with WPS
[thirdparty/hostap.git] / src / ap / ap_config.c
1 /*
2 * hostapd / Configuration helper functions
3 * Copyright (c) 2003-2014, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "utils/includes.h"
10
11 #include "utils/common.h"
12 #include "crypto/sha1.h"
13 #include "crypto/tls.h"
14 #include "radius/radius_client.h"
15 #include "common/ieee802_11_defs.h"
16 #include "common/eapol_common.h"
17 #include "common/dhcp.h"
18 #include "eap_common/eap_wsc_common.h"
19 #include "eap_server/eap.h"
20 #include "wpa_auth.h"
21 #include "sta_info.h"
22 #include "ap_config.h"
23
24
25 static void hostapd_config_free_vlan(struct hostapd_bss_config *bss)
26 {
27 struct hostapd_vlan *vlan, *prev;
28
29 vlan = bss->vlan;
30 prev = NULL;
31 while (vlan) {
32 prev = vlan;
33 vlan = vlan->next;
34 os_free(prev);
35 }
36
37 bss->vlan = NULL;
38 }
39
40
41 #ifndef DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES
42 #define DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES 0
43 #endif /* DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES */
44
45 void hostapd_config_defaults_bss(struct hostapd_bss_config *bss)
46 {
47 dl_list_init(&bss->anqp_elem);
48
49 bss->logger_syslog_level = HOSTAPD_LEVEL_INFO;
50 bss->logger_stdout_level = HOSTAPD_LEVEL_INFO;
51 bss->logger_syslog = (unsigned int) -1;
52 bss->logger_stdout = (unsigned int) -1;
53
54 bss->auth_algs = WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED;
55
56 bss->wep_rekeying_period = 300;
57 /* use key0 in individual key and key1 in broadcast key */
58 bss->broadcast_key_idx_min = 1;
59 bss->broadcast_key_idx_max = 2;
60 bss->eap_reauth_period = 3600;
61
62 bss->wpa_group_rekey = 600;
63 bss->wpa_gmk_rekey = 86400;
64 bss->wpa_group_update_count = 4;
65 bss->wpa_pairwise_update_count = 4;
66 bss->wpa_disable_eapol_key_retries =
67 DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES;
68 bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
69 bss->wpa_pairwise = WPA_CIPHER_TKIP;
70 bss->wpa_group = WPA_CIPHER_TKIP;
71 bss->rsn_pairwise = 0;
72
73 bss->max_num_sta = MAX_STA_COUNT;
74
75 bss->dtim_period = 2;
76
77 bss->radius_server_auth_port = 1812;
78 bss->eap_sim_db_timeout = 1;
79 bss->ap_max_inactivity = AP_MAX_INACTIVITY;
80 bss->eapol_version = EAPOL_VERSION;
81
82 bss->max_listen_interval = 65535;
83
84 bss->pwd_group = 19; /* ECC: GF(p=256) */
85
86 #ifdef CONFIG_IEEE80211W
87 bss->assoc_sa_query_max_timeout = 1000;
88 bss->assoc_sa_query_retry_timeout = 201;
89 bss->group_mgmt_cipher = WPA_CIPHER_AES_128_CMAC;
90 #endif /* CONFIG_IEEE80211W */
91 #ifdef EAP_SERVER_FAST
92 /* both anonymous and authenticated provisioning */
93 bss->eap_fast_prov = 3;
94 bss->pac_key_lifetime = 7 * 24 * 60 * 60;
95 bss->pac_key_refresh_time = 1 * 24 * 60 * 60;
96 #endif /* EAP_SERVER_FAST */
97
98 /* Set to -1 as defaults depends on HT in setup */
99 bss->wmm_enabled = -1;
100
101 #ifdef CONFIG_IEEE80211R_AP
102 bss->ft_over_ds = 1;
103 bss->rkh_pos_timeout = 86400;
104 bss->rkh_neg_timeout = 60;
105 bss->rkh_pull_timeout = 1000;
106 bss->rkh_pull_retries = 4;
107 bss->r0_key_lifetime = 1209600;
108 #endif /* CONFIG_IEEE80211R_AP */
109
110 bss->radius_das_time_window = 300;
111
112 bss->sae_anti_clogging_threshold = 5;
113 bss->sae_sync = 5;
114
115 bss->gas_frag_limit = 1400;
116
117 #ifdef CONFIG_FILS
118 dl_list_init(&bss->fils_realms);
119 bss->fils_hlp_wait_time = 30;
120 bss->dhcp_server_port = DHCP_SERVER_PORT;
121 bss->dhcp_relay_port = DHCP_SERVER_PORT;
122 #endif /* CONFIG_FILS */
123
124 bss->broadcast_deauth = 1;
125
126 #ifdef CONFIG_MBO
127 bss->mbo_cell_data_conn_pref = -1;
128 #endif /* CONFIG_MBO */
129
130 /* Disable TLS v1.3 by default for now to avoid interoperability issue.
131 * This can be enabled by default once the implementation has been fully
132 * completed and tested with other implementations. */
133 bss->tls_flags = TLS_CONN_DISABLE_TLSv1_3;
134
135 bss->send_probe_response = 1;
136
137 #ifdef CONFIG_HS20
138 bss->hs20_release = (HS20_VERSION >> 4) + 1;
139 #endif /* CONFIG_HS20 */
140
141 /* Default to strict CRL checking. */
142 bss->check_crl_strict = 1;
143 }
144
145
146 struct hostapd_config * hostapd_config_defaults(void)
147 {
148 #define ecw2cw(ecw) ((1 << (ecw)) - 1)
149
150 struct hostapd_config *conf;
151 struct hostapd_bss_config *bss;
152 const int aCWmin = 4, aCWmax = 10;
153 const struct hostapd_wmm_ac_params ac_bk =
154 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
155 const struct hostapd_wmm_ac_params ac_be =
156 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
157 const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
158 { aCWmin - 1, aCWmin, 2, 3008 / 32, 0 };
159 const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
160 { aCWmin - 2, aCWmin - 1, 2, 1504 / 32, 0 };
161 const struct hostapd_tx_queue_params txq_bk =
162 { 7, ecw2cw(aCWmin), ecw2cw(aCWmax), 0 };
163 const struct hostapd_tx_queue_params txq_be =
164 { 3, ecw2cw(aCWmin), 4 * (ecw2cw(aCWmin) + 1) - 1, 0};
165 const struct hostapd_tx_queue_params txq_vi =
166 { 1, (ecw2cw(aCWmin) + 1) / 2 - 1, ecw2cw(aCWmin), 30};
167 const struct hostapd_tx_queue_params txq_vo =
168 { 1, (ecw2cw(aCWmin) + 1) / 4 - 1,
169 (ecw2cw(aCWmin) + 1) / 2 - 1, 15};
170
171 #undef ecw2cw
172
173 conf = os_zalloc(sizeof(*conf));
174 bss = os_zalloc(sizeof(*bss));
175 if (conf == NULL || bss == NULL) {
176 wpa_printf(MSG_ERROR, "Failed to allocate memory for "
177 "configuration data.");
178 os_free(conf);
179 os_free(bss);
180 return NULL;
181 }
182 conf->bss = os_calloc(1, sizeof(struct hostapd_bss_config *));
183 if (conf->bss == NULL) {
184 os_free(conf);
185 os_free(bss);
186 return NULL;
187 }
188 conf->bss[0] = bss;
189
190 bss->radius = os_zalloc(sizeof(*bss->radius));
191 if (bss->radius == NULL) {
192 os_free(conf->bss);
193 os_free(conf);
194 os_free(bss);
195 return NULL;
196 }
197
198 hostapd_config_defaults_bss(bss);
199
200 conf->num_bss = 1;
201
202 conf->beacon_int = 100;
203 conf->rts_threshold = -1; /* use driver default: 2347 */
204 conf->fragm_threshold = -1; /* user driver default: 2346 */
205 /* Set to invalid value means do not add Power Constraint IE */
206 conf->local_pwr_constraint = -1;
207
208 conf->wmm_ac_params[0] = ac_be;
209 conf->wmm_ac_params[1] = ac_bk;
210 conf->wmm_ac_params[2] = ac_vi;
211 conf->wmm_ac_params[3] = ac_vo;
212
213 conf->tx_queue[0] = txq_vo;
214 conf->tx_queue[1] = txq_vi;
215 conf->tx_queue[2] = txq_be;
216 conf->tx_queue[3] = txq_bk;
217
218 conf->ht_capab = HT_CAP_INFO_SMPS_DISABLED;
219
220 conf->ap_table_max_size = 255;
221 conf->ap_table_expiration_time = 60;
222 conf->track_sta_max_age = 180;
223
224 #ifdef CONFIG_TESTING_OPTIONS
225 conf->ignore_probe_probability = 0.0;
226 conf->ignore_auth_probability = 0.0;
227 conf->ignore_assoc_probability = 0.0;
228 conf->ignore_reassoc_probability = 0.0;
229 conf->corrupt_gtk_rekey_mic_probability = 0.0;
230 conf->ecsa_ie_only = 0;
231 #endif /* CONFIG_TESTING_OPTIONS */
232
233 conf->acs = 0;
234 conf->acs_ch_list.num = 0;
235 #ifdef CONFIG_ACS
236 conf->acs_num_scans = 5;
237 #endif /* CONFIG_ACS */
238
239 /* The third octet of the country string uses an ASCII space character
240 * by default to indicate that the regulations encompass all
241 * environments for the current frequency band in the country. */
242 conf->country[2] = ' ';
243
244 conf->rssi_reject_assoc_rssi = 0;
245 conf->rssi_reject_assoc_timeout = 30;
246
247 return conf;
248 }
249
250
251 int hostapd_mac_comp(const void *a, const void *b)
252 {
253 return os_memcmp(a, b, sizeof(macaddr));
254 }
255
256
257 static int hostapd_config_read_wpa_psk(const char *fname,
258 struct hostapd_ssid *ssid)
259 {
260 FILE *f;
261 char buf[128], *pos;
262 const char *keyid;
263 char *context;
264 char *context2;
265 char *token;
266 char *name;
267 char *value;
268 int line = 0, ret = 0, len, ok;
269 u8 addr[ETH_ALEN];
270 struct hostapd_wpa_psk *psk;
271
272 if (!fname)
273 return 0;
274
275 f = fopen(fname, "r");
276 if (!f) {
277 wpa_printf(MSG_ERROR, "WPA PSK file '%s' not found.", fname);
278 return -1;
279 }
280
281 while (fgets(buf, sizeof(buf), f)) {
282 int vlan_id = 0;
283
284 line++;
285
286 if (buf[0] == '#')
287 continue;
288 pos = buf;
289 while (*pos != '\0') {
290 if (*pos == '\n') {
291 *pos = '\0';
292 break;
293 }
294 pos++;
295 }
296 if (buf[0] == '\0')
297 continue;
298
299 context = NULL;
300 keyid = NULL;
301 while ((token = str_token(buf, " ", &context))) {
302 if (!os_strchr(token, '='))
303 break;
304 context2 = NULL;
305 name = str_token(token, "=", &context2);
306 if (!name)
307 break;
308 value = str_token(token, "", &context2);
309 if (!value)
310 value = "";
311 if (!os_strcmp(name, "keyid")) {
312 keyid = value;
313 } else if (!os_strcmp(name, "vlanid")) {
314 vlan_id = atoi(value);
315 } else {
316 wpa_printf(MSG_ERROR,
317 "Unrecognized '%s=%s' on line %d in '%s'",
318 name, value, line, fname);
319 ret = -1;
320 break;
321 }
322 }
323
324 if (ret == -1)
325 break;
326
327 if (!token)
328 token = "";
329 if (hwaddr_aton(token, addr)) {
330 wpa_printf(MSG_ERROR, "Invalid MAC address '%s' on "
331 "line %d in '%s'", token, line, fname);
332 ret = -1;
333 break;
334 }
335
336 psk = os_zalloc(sizeof(*psk));
337 if (psk == NULL) {
338 wpa_printf(MSG_ERROR, "WPA PSK allocation failed");
339 ret = -1;
340 break;
341 }
342 psk->vlan_id = vlan_id;
343 if (is_zero_ether_addr(addr))
344 psk->group = 1;
345 else
346 os_memcpy(psk->addr, addr, ETH_ALEN);
347
348 pos = str_token(buf, "", &context);
349 if (!pos) {
350 wpa_printf(MSG_ERROR, "No PSK on line %d in '%s'",
351 line, fname);
352 os_free(psk);
353 ret = -1;
354 break;
355 }
356
357 ok = 0;
358 len = os_strlen(pos);
359 if (len == 64 && hexstr2bin(pos, psk->psk, PMK_LEN) == 0)
360 ok = 1;
361 else if (len >= 8 && len < 64) {
362 pbkdf2_sha1(pos, ssid->ssid, ssid->ssid_len,
363 4096, psk->psk, PMK_LEN);
364 ok = 1;
365 }
366 if (!ok) {
367 wpa_printf(MSG_ERROR, "Invalid PSK '%s' on line %d in "
368 "'%s'", pos, line, fname);
369 os_free(psk);
370 ret = -1;
371 break;
372 }
373
374 if (keyid) {
375 len = os_strlcpy(psk->keyid, keyid, sizeof(psk->keyid));
376 if ((size_t) len >= sizeof(psk->keyid)) {
377 wpa_printf(MSG_ERROR,
378 "PSK keyid too long on line %d in '%s'",
379 line, fname);
380 os_free(psk);
381 ret = -1;
382 break;
383 }
384 }
385
386 psk->next = ssid->wpa_psk;
387 ssid->wpa_psk = psk;
388 }
389
390 fclose(f);
391
392 return ret;
393 }
394
395
396 static int hostapd_derive_psk(struct hostapd_ssid *ssid)
397 {
398 ssid->wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
399 if (ssid->wpa_psk == NULL) {
400 wpa_printf(MSG_ERROR, "Unable to alloc space for PSK");
401 return -1;
402 }
403 wpa_hexdump_ascii(MSG_DEBUG, "SSID",
404 (u8 *) ssid->ssid, ssid->ssid_len);
405 wpa_hexdump_ascii_key(MSG_DEBUG, "PSK (ASCII passphrase)",
406 (u8 *) ssid->wpa_passphrase,
407 os_strlen(ssid->wpa_passphrase));
408 pbkdf2_sha1(ssid->wpa_passphrase,
409 ssid->ssid, ssid->ssid_len,
410 4096, ssid->wpa_psk->psk, PMK_LEN);
411 wpa_hexdump_key(MSG_DEBUG, "PSK (from passphrase)",
412 ssid->wpa_psk->psk, PMK_LEN);
413 return 0;
414 }
415
416
417 int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf)
418 {
419 struct hostapd_ssid *ssid = &conf->ssid;
420
421 if (ssid->wpa_passphrase != NULL) {
422 if (ssid->wpa_psk != NULL) {
423 wpa_printf(MSG_DEBUG, "Using pre-configured WPA PSK "
424 "instead of passphrase");
425 } else {
426 wpa_printf(MSG_DEBUG, "Deriving WPA PSK based on "
427 "passphrase");
428 if (hostapd_derive_psk(ssid) < 0)
429 return -1;
430 }
431 ssid->wpa_psk->group = 1;
432 }
433
434 return hostapd_config_read_wpa_psk(ssid->wpa_psk_file, &conf->ssid);
435 }
436
437
438 static void hostapd_config_free_radius(struct hostapd_radius_server *servers,
439 int num_servers)
440 {
441 int i;
442
443 for (i = 0; i < num_servers; i++) {
444 os_free(servers[i].shared_secret);
445 }
446 os_free(servers);
447 }
448
449
450 struct hostapd_radius_attr *
451 hostapd_config_get_radius_attr(struct hostapd_radius_attr *attr, u8 type)
452 {
453 for (; attr; attr = attr->next) {
454 if (attr->type == type)
455 return attr;
456 }
457 return NULL;
458 }
459
460
461 static void hostapd_config_free_radius_attr(struct hostapd_radius_attr *attr)
462 {
463 struct hostapd_radius_attr *prev;
464
465 while (attr) {
466 prev = attr;
467 attr = attr->next;
468 wpabuf_free(prev->val);
469 os_free(prev);
470 }
471 }
472
473
474 void hostapd_config_free_eap_user(struct hostapd_eap_user *user)
475 {
476 hostapd_config_free_radius_attr(user->accept_attr);
477 os_free(user->identity);
478 bin_clear_free(user->password, user->password_len);
479 bin_clear_free(user->salt, user->salt_len);
480 os_free(user);
481 }
482
483
484 void hostapd_config_free_eap_users(struct hostapd_eap_user *user)
485 {
486 struct hostapd_eap_user *prev_user;
487
488 while (user) {
489 prev_user = user;
490 user = user->next;
491 hostapd_config_free_eap_user(prev_user);
492 }
493 }
494
495
496 static void hostapd_config_free_wep(struct hostapd_wep_keys *keys)
497 {
498 int i;
499 for (i = 0; i < NUM_WEP_KEYS; i++) {
500 bin_clear_free(keys->key[i], keys->len[i]);
501 keys->key[i] = NULL;
502 }
503 }
504
505
506 void hostapd_config_clear_wpa_psk(struct hostapd_wpa_psk **l)
507 {
508 struct hostapd_wpa_psk *psk, *tmp;
509
510 for (psk = *l; psk;) {
511 tmp = psk;
512 psk = psk->next;
513 bin_clear_free(tmp, sizeof(*tmp));
514 }
515 *l = NULL;
516 }
517
518
519 static void hostapd_config_free_anqp_elem(struct hostapd_bss_config *conf)
520 {
521 struct anqp_element *elem;
522
523 while ((elem = dl_list_first(&conf->anqp_elem, struct anqp_element,
524 list))) {
525 dl_list_del(&elem->list);
526 wpabuf_free(elem->payload);
527 os_free(elem);
528 }
529 }
530
531
532 static void hostapd_config_free_fils_realms(struct hostapd_bss_config *conf)
533 {
534 #ifdef CONFIG_FILS
535 struct fils_realm *realm;
536
537 while ((realm = dl_list_first(&conf->fils_realms, struct fils_realm,
538 list))) {
539 dl_list_del(&realm->list);
540 os_free(realm);
541 }
542 #endif /* CONFIG_FILS */
543 }
544
545
546 static void hostapd_config_free_sae_passwords(struct hostapd_bss_config *conf)
547 {
548 struct sae_password_entry *pw, *tmp;
549
550 pw = conf->sae_passwords;
551 conf->sae_passwords = NULL;
552 while (pw) {
553 tmp = pw;
554 pw = pw->next;
555 str_clear_free(tmp->password);
556 os_free(tmp->identifier);
557 os_free(tmp);
558 }
559 }
560
561
562 void hostapd_config_free_bss(struct hostapd_bss_config *conf)
563 {
564 if (conf == NULL)
565 return;
566
567 hostapd_config_clear_wpa_psk(&conf->ssid.wpa_psk);
568
569 str_clear_free(conf->ssid.wpa_passphrase);
570 os_free(conf->ssid.wpa_psk_file);
571 hostapd_config_free_wep(&conf->ssid.wep);
572 #ifdef CONFIG_FULL_DYNAMIC_VLAN
573 os_free(conf->ssid.vlan_tagged_interface);
574 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
575
576 hostapd_config_free_eap_users(conf->eap_user);
577 os_free(conf->eap_user_sqlite);
578
579 os_free(conf->eap_req_id_text);
580 os_free(conf->erp_domain);
581 os_free(conf->accept_mac);
582 os_free(conf->deny_mac);
583 os_free(conf->nas_identifier);
584 if (conf->radius) {
585 hostapd_config_free_radius(conf->radius->auth_servers,
586 conf->radius->num_auth_servers);
587 hostapd_config_free_radius(conf->radius->acct_servers,
588 conf->radius->num_acct_servers);
589 }
590 hostapd_config_free_radius_attr(conf->radius_auth_req_attr);
591 hostapd_config_free_radius_attr(conf->radius_acct_req_attr);
592 os_free(conf->rsn_preauth_interfaces);
593 os_free(conf->ctrl_interface);
594 os_free(conf->ca_cert);
595 os_free(conf->server_cert);
596 os_free(conf->private_key);
597 os_free(conf->private_key_passwd);
598 os_free(conf->ocsp_stapling_response);
599 os_free(conf->ocsp_stapling_response_multi);
600 os_free(conf->dh_file);
601 os_free(conf->openssl_ciphers);
602 os_free(conf->openssl_ecdh_curves);
603 os_free(conf->pac_opaque_encr_key);
604 os_free(conf->eap_fast_a_id);
605 os_free(conf->eap_fast_a_id_info);
606 os_free(conf->eap_sim_db);
607 os_free(conf->radius_server_clients);
608 os_free(conf->radius);
609 os_free(conf->radius_das_shared_secret);
610 hostapd_config_free_vlan(conf);
611 os_free(conf->time_zone);
612
613 #ifdef CONFIG_IEEE80211R_AP
614 {
615 struct ft_remote_r0kh *r0kh, *r0kh_prev;
616 struct ft_remote_r1kh *r1kh, *r1kh_prev;
617
618 r0kh = conf->r0kh_list;
619 conf->r0kh_list = NULL;
620 while (r0kh) {
621 r0kh_prev = r0kh;
622 r0kh = r0kh->next;
623 os_free(r0kh_prev);
624 }
625
626 r1kh = conf->r1kh_list;
627 conf->r1kh_list = NULL;
628 while (r1kh) {
629 r1kh_prev = r1kh;
630 r1kh = r1kh->next;
631 os_free(r1kh_prev);
632 }
633 }
634 #endif /* CONFIG_IEEE80211R_AP */
635
636 #ifdef CONFIG_WPS
637 os_free(conf->wps_pin_requests);
638 os_free(conf->device_name);
639 os_free(conf->manufacturer);
640 os_free(conf->model_name);
641 os_free(conf->model_number);
642 os_free(conf->serial_number);
643 os_free(conf->config_methods);
644 os_free(conf->ap_pin);
645 os_free(conf->extra_cred);
646 os_free(conf->ap_settings);
647 hostapd_config_clear_wpa_psk(&conf->multi_ap_backhaul_ssid.wpa_psk);
648 str_clear_free(conf->multi_ap_backhaul_ssid.wpa_passphrase);
649 os_free(conf->upnp_iface);
650 os_free(conf->friendly_name);
651 os_free(conf->manufacturer_url);
652 os_free(conf->model_description);
653 os_free(conf->model_url);
654 os_free(conf->upc);
655 {
656 unsigned int i;
657
658 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++)
659 wpabuf_free(conf->wps_vendor_ext[i]);
660 }
661 wpabuf_free(conf->wps_nfc_dh_pubkey);
662 wpabuf_free(conf->wps_nfc_dh_privkey);
663 wpabuf_free(conf->wps_nfc_dev_pw);
664 #endif /* CONFIG_WPS */
665
666 os_free(conf->roaming_consortium);
667 os_free(conf->venue_name);
668 os_free(conf->venue_url);
669 os_free(conf->nai_realm_data);
670 os_free(conf->network_auth_type);
671 os_free(conf->anqp_3gpp_cell_net);
672 os_free(conf->domain_name);
673 hostapd_config_free_anqp_elem(conf);
674
675 #ifdef CONFIG_RADIUS_TEST
676 os_free(conf->dump_msk_file);
677 #endif /* CONFIG_RADIUS_TEST */
678
679 #ifdef CONFIG_HS20
680 os_free(conf->hs20_oper_friendly_name);
681 os_free(conf->hs20_wan_metrics);
682 os_free(conf->hs20_connection_capability);
683 os_free(conf->hs20_operating_class);
684 os_free(conf->hs20_icons);
685 if (conf->hs20_osu_providers) {
686 size_t i;
687 for (i = 0; i < conf->hs20_osu_providers_count; i++) {
688 struct hs20_osu_provider *p;
689 size_t j;
690 p = &conf->hs20_osu_providers[i];
691 os_free(p->friendly_name);
692 os_free(p->server_uri);
693 os_free(p->method_list);
694 for (j = 0; j < p->icons_count; j++)
695 os_free(p->icons[j]);
696 os_free(p->icons);
697 os_free(p->osu_nai);
698 os_free(p->osu_nai2);
699 os_free(p->service_desc);
700 }
701 os_free(conf->hs20_osu_providers);
702 }
703 if (conf->hs20_operator_icon) {
704 size_t i;
705
706 for (i = 0; i < conf->hs20_operator_icon_count; i++)
707 os_free(conf->hs20_operator_icon[i]);
708 os_free(conf->hs20_operator_icon);
709 }
710 os_free(conf->subscr_remediation_url);
711 os_free(conf->hs20_sim_provisioning_url);
712 os_free(conf->t_c_filename);
713 os_free(conf->t_c_server_url);
714 #endif /* CONFIG_HS20 */
715
716 wpabuf_free(conf->vendor_elements);
717 wpabuf_free(conf->assocresp_elements);
718
719 os_free(conf->sae_groups);
720 #ifdef CONFIG_OWE
721 os_free(conf->owe_groups);
722 #endif /* CONFIG_OWE */
723
724 os_free(conf->wowlan_triggers);
725
726 os_free(conf->server_id);
727
728 #ifdef CONFIG_TESTING_OPTIONS
729 wpabuf_free(conf->own_ie_override);
730 wpabuf_free(conf->sae_commit_override);
731 #endif /* CONFIG_TESTING_OPTIONS */
732
733 os_free(conf->no_probe_resp_if_seen_on);
734 os_free(conf->no_auth_if_seen_on);
735
736 hostapd_config_free_fils_realms(conf);
737
738 #ifdef CONFIG_DPP
739 os_free(conf->dpp_connector);
740 wpabuf_free(conf->dpp_netaccesskey);
741 wpabuf_free(conf->dpp_csign);
742 #endif /* CONFIG_DPP */
743
744 hostapd_config_free_sae_passwords(conf);
745
746 os_free(conf);
747 }
748
749
750 /**
751 * hostapd_config_free - Free hostapd configuration
752 * @conf: Configuration data from hostapd_config_read().
753 */
754 void hostapd_config_free(struct hostapd_config *conf)
755 {
756 size_t i;
757
758 if (conf == NULL)
759 return;
760
761 for (i = 0; i < conf->num_bss; i++)
762 hostapd_config_free_bss(conf->bss[i]);
763 os_free(conf->bss);
764 os_free(conf->supported_rates);
765 os_free(conf->basic_rates);
766 os_free(conf->acs_ch_list.range);
767 os_free(conf->driver_params);
768 #ifdef CONFIG_ACS
769 os_free(conf->acs_chan_bias);
770 #endif /* CONFIG_ACS */
771 wpabuf_free(conf->lci);
772 wpabuf_free(conf->civic);
773
774 os_free(conf);
775 }
776
777
778 /**
779 * hostapd_maclist_found - Find a MAC address from a list
780 * @list: MAC address list
781 * @num_entries: Number of addresses in the list
782 * @addr: Address to search for
783 * @vlan_id: Buffer for returning VLAN ID or %NULL if not needed
784 * Returns: 1 if address is in the list or 0 if not.
785 *
786 * Perform a binary search for given MAC address from a pre-sorted list.
787 */
788 int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
789 const u8 *addr, struct vlan_description *vlan_id)
790 {
791 int start, end, middle, res;
792
793 start = 0;
794 end = num_entries - 1;
795
796 while (start <= end) {
797 middle = (start + end) / 2;
798 res = os_memcmp(list[middle].addr, addr, ETH_ALEN);
799 if (res == 0) {
800 if (vlan_id)
801 *vlan_id = list[middle].vlan_id;
802 return 1;
803 }
804 if (res < 0)
805 start = middle + 1;
806 else
807 end = middle - 1;
808 }
809
810 return 0;
811 }
812
813
814 int hostapd_rate_found(int *list, int rate)
815 {
816 int i;
817
818 if (list == NULL)
819 return 0;
820
821 for (i = 0; list[i] >= 0; i++)
822 if (list[i] == rate)
823 return 1;
824
825 return 0;
826 }
827
828
829 int hostapd_vlan_valid(struct hostapd_vlan *vlan,
830 struct vlan_description *vlan_desc)
831 {
832 struct hostapd_vlan *v = vlan;
833 int i;
834
835 if (!vlan_desc->notempty || vlan_desc->untagged < 0 ||
836 vlan_desc->untagged > MAX_VLAN_ID)
837 return 0;
838 for (i = 0; i < MAX_NUM_TAGGED_VLAN; i++) {
839 if (vlan_desc->tagged[i] < 0 ||
840 vlan_desc->tagged[i] > MAX_VLAN_ID)
841 return 0;
842 }
843 if (!vlan_desc->untagged && !vlan_desc->tagged[0])
844 return 0;
845
846 while (v) {
847 if (!vlan_compare(&v->vlan_desc, vlan_desc) ||
848 v->vlan_id == VLAN_ID_WILDCARD)
849 return 1;
850 v = v->next;
851 }
852 return 0;
853 }
854
855
856 const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan, int vlan_id)
857 {
858 struct hostapd_vlan *v = vlan;
859 while (v) {
860 if (v->vlan_id == vlan_id)
861 return v->ifname;
862 v = v->next;
863 }
864 return NULL;
865 }
866
867
868 const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
869 const u8 *addr, const u8 *p2p_dev_addr,
870 const u8 *prev_psk, int *vlan_id)
871 {
872 struct hostapd_wpa_psk *psk;
873 int next_ok = prev_psk == NULL;
874
875 if (vlan_id)
876 *vlan_id = 0;
877
878 if (p2p_dev_addr && !is_zero_ether_addr(p2p_dev_addr)) {
879 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
880 " p2p_dev_addr=" MACSTR " prev_psk=%p",
881 MAC2STR(addr), MAC2STR(p2p_dev_addr), prev_psk);
882 addr = NULL; /* Use P2P Device Address for matching */
883 } else {
884 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
885 " prev_psk=%p",
886 MAC2STR(addr), prev_psk);
887 }
888
889 for (psk = conf->ssid.wpa_psk; psk != NULL; psk = psk->next) {
890 if (next_ok &&
891 (psk->group ||
892 (addr && os_memcmp(psk->addr, addr, ETH_ALEN) == 0) ||
893 (!addr && p2p_dev_addr &&
894 os_memcmp(psk->p2p_dev_addr, p2p_dev_addr, ETH_ALEN) ==
895 0))) {
896 if (vlan_id)
897 *vlan_id = psk->vlan_id;
898 return psk->psk;
899 }
900
901 if (psk->psk == prev_psk)
902 next_ok = 1;
903 }
904
905 return NULL;
906 }
907
908
909 static int hostapd_config_check_bss(struct hostapd_bss_config *bss,
910 struct hostapd_config *conf,
911 int full_config)
912 {
913 if (full_config && bss->ieee802_1x && !bss->eap_server &&
914 !bss->radius->auth_servers) {
915 wpa_printf(MSG_ERROR, "Invalid IEEE 802.1X configuration (no "
916 "EAP authenticator configured).");
917 return -1;
918 }
919
920 if (bss->wpa) {
921 int wep, i;
922
923 wep = bss->default_wep_key_len > 0 ||
924 bss->individual_wep_key_len > 0;
925 for (i = 0; i < NUM_WEP_KEYS; i++) {
926 if (bss->ssid.wep.keys_set) {
927 wep = 1;
928 break;
929 }
930 }
931
932 if (wep) {
933 wpa_printf(MSG_ERROR, "WEP configuration in a WPA network is not supported");
934 return -1;
935 }
936 }
937
938 if (full_config && bss->wpa &&
939 bss->wpa_psk_radius != PSK_RADIUS_IGNORED &&
940 bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) {
941 wpa_printf(MSG_ERROR, "WPA-PSK using RADIUS enabled, but no "
942 "RADIUS checking (macaddr_acl=2) enabled.");
943 return -1;
944 }
945
946 if (full_config && bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) &&
947 bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL &&
948 bss->ssid.wpa_psk_file == NULL &&
949 (bss->wpa_psk_radius != PSK_RADIUS_REQUIRED ||
950 bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH)) {
951 wpa_printf(MSG_ERROR, "WPA-PSK enabled, but PSK or passphrase "
952 "is not configured.");
953 return -1;
954 }
955
956 if (full_config && !is_zero_ether_addr(bss->bssid)) {
957 size_t i;
958
959 for (i = 0; i < conf->num_bss; i++) {
960 if (conf->bss[i] != bss &&
961 (hostapd_mac_comp(conf->bss[i]->bssid,
962 bss->bssid) == 0)) {
963 wpa_printf(MSG_ERROR, "Duplicate BSSID " MACSTR
964 " on interface '%s' and '%s'.",
965 MAC2STR(bss->bssid),
966 conf->bss[i]->iface, bss->iface);
967 return -1;
968 }
969 }
970 }
971
972 #ifdef CONFIG_IEEE80211R_AP
973 if (full_config && wpa_key_mgmt_ft(bss->wpa_key_mgmt) &&
974 (bss->nas_identifier == NULL ||
975 os_strlen(bss->nas_identifier) < 1 ||
976 os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) {
977 wpa_printf(MSG_ERROR, "FT (IEEE 802.11r) requires "
978 "nas_identifier to be configured as a 1..48 octet "
979 "string");
980 return -1;
981 }
982 #endif /* CONFIG_IEEE80211R_AP */
983
984 #ifdef CONFIG_IEEE80211N
985 if (full_config && conf->ieee80211n &&
986 conf->hw_mode == HOSTAPD_MODE_IEEE80211B) {
987 bss->disable_11n = 1;
988 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) in 11b mode is not "
989 "allowed, disabling HT capabilities");
990 }
991
992 if (full_config && conf->ieee80211n &&
993 bss->ssid.security_policy == SECURITY_STATIC_WEP) {
994 bss->disable_11n = 1;
995 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WEP is not "
996 "allowed, disabling HT capabilities");
997 }
998
999 if (full_config && conf->ieee80211n && bss->wpa &&
1000 !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1001 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1002 WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1003 {
1004 bss->disable_11n = 1;
1005 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WPA/WPA2 "
1006 "requires CCMP/GCMP to be enabled, disabling HT "
1007 "capabilities");
1008 }
1009 #endif /* CONFIG_IEEE80211N */
1010
1011 #ifdef CONFIG_IEEE80211AC
1012 if (full_config && conf->ieee80211ac &&
1013 bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1014 bss->disable_11ac = 1;
1015 wpa_printf(MSG_ERROR,
1016 "VHT (IEEE 802.11ac) with WEP is not allowed, disabling VHT capabilities");
1017 }
1018
1019 if (full_config && conf->ieee80211ac && bss->wpa &&
1020 !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1021 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1022 WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1023 {
1024 bss->disable_11ac = 1;
1025 wpa_printf(MSG_ERROR,
1026 "VHT (IEEE 802.11ac) with WPA/WPA2 requires CCMP/GCMP to be enabled, disabling VHT capabilities");
1027 }
1028 #endif /* CONFIG_IEEE80211AC */
1029
1030 #ifdef CONFIG_WPS
1031 if (full_config && bss->wps_state && bss->ignore_broadcast_ssid) {
1032 wpa_printf(MSG_INFO, "WPS: ignore_broadcast_ssid "
1033 "configuration forced WPS to be disabled");
1034 bss->wps_state = 0;
1035 }
1036
1037 if (full_config && bss->wps_state &&
1038 bss->ssid.wep.keys_set && bss->wpa == 0) {
1039 wpa_printf(MSG_INFO, "WPS: WEP configuration forced WPS to be "
1040 "disabled");
1041 bss->wps_state = 0;
1042 }
1043
1044 if (full_config && bss->wps_state && bss->wpa &&
1045 (!(bss->wpa & 2) ||
1046 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1047 WPA_CIPHER_CCMP_256 |
1048 WPA_CIPHER_GCMP_256)))) {
1049 wpa_printf(MSG_INFO, "WPS: WPA/TKIP configuration without "
1050 "WPA2/CCMP/GCMP forced WPS to be disabled");
1051 bss->wps_state = 0;
1052 }
1053 #endif /* CONFIG_WPS */
1054
1055 #ifdef CONFIG_HS20
1056 if (full_config && bss->hs20 &&
1057 (!(bss->wpa & 2) ||
1058 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1059 WPA_CIPHER_CCMP_256 |
1060 WPA_CIPHER_GCMP_256)))) {
1061 wpa_printf(MSG_ERROR, "HS 2.0: WPA2-Enterprise/CCMP "
1062 "configuration is required for Hotspot 2.0 "
1063 "functionality");
1064 return -1;
1065 }
1066 #endif /* CONFIG_HS20 */
1067
1068 #ifdef CONFIG_MBO
1069 if (full_config && bss->mbo_enabled && (bss->wpa & 2) &&
1070 bss->ieee80211w == NO_MGMT_FRAME_PROTECTION) {
1071 wpa_printf(MSG_ERROR,
1072 "MBO: PMF needs to be enabled whenever using WPA2 with MBO");
1073 return -1;
1074 }
1075 #endif /* CONFIG_MBO */
1076
1077 #ifdef CONFIG_OCV
1078 if (full_config && bss->ieee80211w == NO_MGMT_FRAME_PROTECTION &&
1079 bss->ocv) {
1080 wpa_printf(MSG_ERROR,
1081 "OCV: PMF needs to be enabled whenever using OCV");
1082 return -1;
1083 }
1084 #endif /* CONFIG_OCV */
1085
1086 return 0;
1087 }
1088
1089
1090 static int hostapd_config_check_cw(struct hostapd_config *conf, int queue)
1091 {
1092 int tx_cwmin = conf->tx_queue[queue].cwmin;
1093 int tx_cwmax = conf->tx_queue[queue].cwmax;
1094 int ac_cwmin = conf->wmm_ac_params[queue].cwmin;
1095 int ac_cwmax = conf->wmm_ac_params[queue].cwmax;
1096
1097 if (tx_cwmin > tx_cwmax) {
1098 wpa_printf(MSG_ERROR,
1099 "Invalid TX queue cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1100 tx_cwmin, tx_cwmax);
1101 return -1;
1102 }
1103 if (ac_cwmin > ac_cwmax) {
1104 wpa_printf(MSG_ERROR,
1105 "Invalid WMM AC cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1106 ac_cwmin, ac_cwmax);
1107 return -1;
1108 }
1109 return 0;
1110 }
1111
1112
1113 int hostapd_config_check(struct hostapd_config *conf, int full_config)
1114 {
1115 size_t i;
1116
1117 if (full_config && conf->ieee80211d &&
1118 (!conf->country[0] || !conf->country[1])) {
1119 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11d without "
1120 "setting the country_code");
1121 return -1;
1122 }
1123
1124 if (full_config && conf->ieee80211h && !conf->ieee80211d) {
1125 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11h without "
1126 "IEEE 802.11d enabled");
1127 return -1;
1128 }
1129
1130 if (full_config && conf->local_pwr_constraint != -1 &&
1131 !conf->ieee80211d) {
1132 wpa_printf(MSG_ERROR, "Cannot add Power Constraint element without Country element");
1133 return -1;
1134 }
1135
1136 if (full_config && conf->spectrum_mgmt_required &&
1137 conf->local_pwr_constraint == -1) {
1138 wpa_printf(MSG_ERROR, "Cannot set Spectrum Management bit without Country and Power Constraint elements");
1139 return -1;
1140 }
1141
1142 for (i = 0; i < NUM_TX_QUEUES; i++) {
1143 if (hostapd_config_check_cw(conf, i))
1144 return -1;
1145 }
1146
1147 for (i = 0; i < conf->num_bss; i++) {
1148 if (hostapd_config_check_bss(conf->bss[i], conf, full_config))
1149 return -1;
1150 }
1151
1152 return 0;
1153 }
1154
1155
1156 void hostapd_set_security_params(struct hostapd_bss_config *bss,
1157 int full_config)
1158 {
1159 if (bss->individual_wep_key_len == 0) {
1160 /* individual keys are not use; can use key idx0 for
1161 * broadcast keys */
1162 bss->broadcast_key_idx_min = 0;
1163 }
1164
1165 if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
1166 bss->rsn_pairwise = bss->wpa_pairwise;
1167 if (bss->group_cipher)
1168 bss->wpa_group = bss->group_cipher;
1169 else
1170 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
1171 bss->wpa_pairwise,
1172 bss->rsn_pairwise);
1173 if (!bss->wpa_group_rekey_set)
1174 bss->wpa_group_rekey = bss->wpa_group == WPA_CIPHER_TKIP ?
1175 600 : 86400;
1176
1177 if (full_config) {
1178 bss->radius->auth_server = bss->radius->auth_servers;
1179 bss->radius->acct_server = bss->radius->acct_servers;
1180 }
1181
1182 if (bss->wpa && bss->ieee802_1x) {
1183 bss->ssid.security_policy = SECURITY_WPA;
1184 } else if (bss->wpa) {
1185 bss->ssid.security_policy = SECURITY_WPA_PSK;
1186 } else if (bss->ieee802_1x) {
1187 int cipher = WPA_CIPHER_NONE;
1188 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
1189 bss->ssid.wep.default_len = bss->default_wep_key_len;
1190 if (full_config && bss->default_wep_key_len) {
1191 cipher = bss->default_wep_key_len >= 13 ?
1192 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
1193 } else if (full_config && bss->ssid.wep.keys_set) {
1194 if (bss->ssid.wep.len[0] >= 13)
1195 cipher = WPA_CIPHER_WEP104;
1196 else
1197 cipher = WPA_CIPHER_WEP40;
1198 }
1199 bss->wpa_group = cipher;
1200 bss->wpa_pairwise = cipher;
1201 bss->rsn_pairwise = cipher;
1202 if (full_config)
1203 bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
1204 } else if (bss->ssid.wep.keys_set) {
1205 int cipher = WPA_CIPHER_WEP40;
1206 if (bss->ssid.wep.len[0] >= 13)
1207 cipher = WPA_CIPHER_WEP104;
1208 bss->ssid.security_policy = SECURITY_STATIC_WEP;
1209 bss->wpa_group = cipher;
1210 bss->wpa_pairwise = cipher;
1211 bss->rsn_pairwise = cipher;
1212 if (full_config)
1213 bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1214 } else if (bss->osen) {
1215 bss->ssid.security_policy = SECURITY_OSEN;
1216 bss->wpa_group = WPA_CIPHER_CCMP;
1217 bss->wpa_pairwise = 0;
1218 bss->rsn_pairwise = WPA_CIPHER_CCMP;
1219 } else {
1220 bss->ssid.security_policy = SECURITY_PLAINTEXT;
1221 if (full_config) {
1222 bss->wpa_group = WPA_CIPHER_NONE;
1223 bss->wpa_pairwise = WPA_CIPHER_NONE;
1224 bss->rsn_pairwise = WPA_CIPHER_NONE;
1225 bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1226 }
1227 }
1228 }
1229
1230
1231 int hostapd_sae_pw_id_in_use(struct hostapd_bss_config *conf)
1232 {
1233 int with_id = 0, without_id = 0;
1234 struct sae_password_entry *pw;
1235
1236 if (conf->ssid.wpa_passphrase)
1237 without_id = 1;
1238
1239 for (pw = conf->sae_passwords; pw; pw = pw->next) {
1240 if (pw->identifier)
1241 with_id = 1;
1242 else
1243 without_id = 1;
1244 if (with_id && without_id)
1245 break;
1246 }
1247
1248 if (with_id && !without_id)
1249 return 2;
1250 return with_id;
1251 }