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/ieee802_1x_defs.h"
17 #include "common/eapol_common.h"
18 #include "common/dhcp.h"
19 #include "common/sae.h"
20 #include "eap_common/eap_wsc_common.h"
21 #include "eap_server/eap.h"
22 #include "wpa_auth.h"
23 #include "sta_info.h"
24 #include "airtime_policy.h"
25 #include "ap_config.h"
26
27
hostapd_config_free_vlan(struct hostapd_bss_config * bss)28 static void hostapd_config_free_vlan(struct hostapd_bss_config *bss)
29 {
30 struct hostapd_vlan *vlan, *prev;
31
32 vlan = bss->vlan;
33 prev = NULL;
34 while (vlan) {
35 prev = vlan;
36 vlan = vlan->next;
37 os_free(prev);
38 }
39
40 bss->vlan = NULL;
41 }
42
43
44 #ifndef DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES
45 #define DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES 0
46 #endif /* DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES */
47
hostapd_config_defaults_bss(struct hostapd_bss_config * bss)48 void hostapd_config_defaults_bss(struct hostapd_bss_config *bss)
49 {
50 dl_list_init(&bss->anqp_elem);
51
52 bss->logger_syslog_level = HOSTAPD_LEVEL_INFO;
53 bss->logger_stdout_level = HOSTAPD_LEVEL_INFO;
54 bss->logger_syslog = (unsigned int) -1;
55 bss->logger_stdout = (unsigned int) -1;
56
57 #ifdef CONFIG_WEP
58 bss->auth_algs = WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED;
59
60 bss->wep_rekeying_period = 300;
61 /* use key0 in individual key and key1 in broadcast key */
62 bss->broadcast_key_idx_min = 1;
63 bss->broadcast_key_idx_max = 2;
64 #else /* CONFIG_WEP */
65 bss->auth_algs = WPA_AUTH_ALG_OPEN;
66 #endif /* CONFIG_WEP */
67 bss->eap_reauth_period = 3600;
68
69 bss->wpa_group_rekey = 600;
70 bss->wpa_gmk_rekey = 86400;
71 bss->wpa_deny_ptk0_rekey = PTK0_REKEY_ALLOW_ALWAYS;
72 bss->wpa_group_update_count = 4;
73 bss->wpa_pairwise_update_count = 4;
74 bss->wpa_disable_eapol_key_retries =
75 DEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES;
76 bss->wpa_key_mgmt = WPA_KEY_MGMT_PSK;
77 #ifdef CONFIG_NO_TKIP
78 bss->wpa_pairwise = WPA_CIPHER_CCMP;
79 bss->wpa_group = WPA_CIPHER_CCMP;
80 #else /* CONFIG_NO_TKIP */
81 bss->wpa_pairwise = WPA_CIPHER_TKIP;
82 bss->wpa_group = WPA_CIPHER_TKIP;
83 #endif /* CONFIG_NO_TKIP */
84 bss->rsn_pairwise = 0;
85
86 bss->max_num_sta = MAX_STA_COUNT;
87
88 bss->dtim_period = 2;
89
90 bss->radius_server_auth_port = 1812;
91 bss->eap_sim_db_timeout = 1;
92 bss->eap_sim_id = 3;
93 bss->ap_max_inactivity = AP_MAX_INACTIVITY;
94 bss->eapol_version = EAPOL_VERSION;
95
96 bss->max_listen_interval = 65535;
97
98 bss->pwd_group = 19; /* ECC: GF(p=256) */
99
100 bss->assoc_sa_query_max_timeout = 1000;
101 bss->assoc_sa_query_retry_timeout = 201;
102 bss->group_mgmt_cipher = WPA_CIPHER_AES_128_CMAC;
103 #ifdef EAP_SERVER_FAST
104 /* both anonymous and authenticated provisioning */
105 bss->eap_fast_prov = 3;
106 bss->pac_key_lifetime = 7 * 24 * 60 * 60;
107 bss->pac_key_refresh_time = 1 * 24 * 60 * 60;
108 #endif /* EAP_SERVER_FAST */
109
110 /* Set to -1 as defaults depends on HT in setup */
111 bss->wmm_enabled = -1;
112
113 #ifdef CONFIG_IEEE80211R_AP
114 bss->ft_over_ds = 1;
115 bss->rkh_pos_timeout = 86400;
116 bss->rkh_neg_timeout = 60;
117 bss->rkh_pull_timeout = 1000;
118 bss->rkh_pull_retries = 4;
119 bss->r0_key_lifetime = 1209600;
120 #endif /* CONFIG_IEEE80211R_AP */
121
122 bss->radius_das_time_window = 300;
123
124 bss->anti_clogging_threshold = 5;
125 bss->sae_sync = 5;
126
127 bss->gas_frag_limit = 1400;
128
129 #ifdef CONFIG_FILS
130 dl_list_init(&bss->fils_realms);
131 bss->fils_hlp_wait_time = 30;
132 bss->dhcp_server_port = DHCP_SERVER_PORT;
133 bss->dhcp_relay_port = DHCP_SERVER_PORT;
134 bss->fils_discovery_min_int = 20;
135 #endif /* CONFIG_FILS */
136
137 bss->broadcast_deauth = 1;
138
139 #ifdef CONFIG_MBO
140 bss->mbo_cell_data_conn_pref = -1;
141 #endif /* CONFIG_MBO */
142
143 /* Disable TLS v1.3 by default for now to avoid interoperability issue.
144 * This can be enabled by default once the implementation has been fully
145 * completed and tested with other implementations. */
146 bss->tls_flags = TLS_CONN_DISABLE_TLSv1_3;
147
148 bss->max_auth_rounds = 100;
149 bss->max_auth_rounds_short = 50;
150
151 bss->send_probe_response = 1;
152
153 #ifdef CONFIG_HS20
154 bss->hs20_release = (HS20_VERSION >> 4) + 1;
155 #endif /* CONFIG_HS20 */
156
157 #ifdef CONFIG_MACSEC
158 bss->mka_priority = DEFAULT_PRIO_NOT_KEY_SERVER;
159 bss->macsec_port = 1;
160 #endif /* CONFIG_MACSEC */
161
162 /* Default to strict CRL checking. */
163 bss->check_crl_strict = 1;
164
165 #ifdef CONFIG_TESTING_OPTIONS
166 bss->sae_commit_status = -1;
167 #endif /* CONFIG_TESTING_OPTIONS */
168
169 #ifdef CONFIG_PASN
170 /* comeback after 10 TUs */
171 bss->pasn_comeback_after = 10;
172 #endif /* CONFIG_PASN */
173 }
174
175
hostapd_config_defaults(void)176 struct hostapd_config * hostapd_config_defaults(void)
177 {
178 #define ecw2cw(ecw) ((1 << (ecw)) - 1)
179
180 struct hostapd_config *conf;
181 struct hostapd_bss_config *bss;
182 const int aCWmin = 4, aCWmax = 10;
183 const struct hostapd_wmm_ac_params ac_bk =
184 { aCWmin, aCWmax, 7, 0, 0 }; /* background traffic */
185 const struct hostapd_wmm_ac_params ac_be =
186 { aCWmin, aCWmax, 3, 0, 0 }; /* best effort traffic */
187 const struct hostapd_wmm_ac_params ac_vi = /* video traffic */
188 { aCWmin - 1, aCWmin, 2, 3008 / 32, 0 };
189 const struct hostapd_wmm_ac_params ac_vo = /* voice traffic */
190 { aCWmin - 2, aCWmin - 1, 2, 1504 / 32, 0 };
191 const struct hostapd_tx_queue_params txq_bk =
192 { 7, ecw2cw(aCWmin), ecw2cw(aCWmax), 0 };
193 const struct hostapd_tx_queue_params txq_be =
194 { 3, ecw2cw(aCWmin), 4 * (ecw2cw(aCWmin) + 1) - 1, 0};
195 const struct hostapd_tx_queue_params txq_vi =
196 { 1, (ecw2cw(aCWmin) + 1) / 2 - 1, ecw2cw(aCWmin), 30};
197 const struct hostapd_tx_queue_params txq_vo =
198 { 1, (ecw2cw(aCWmin) + 1) / 4 - 1,
199 (ecw2cw(aCWmin) + 1) / 2 - 1, 15};
200
201 #undef ecw2cw
202
203 conf = os_zalloc(sizeof(*conf));
204 bss = os_zalloc(sizeof(*bss));
205 if (conf == NULL || bss == NULL) {
206 wpa_printf(MSG_ERROR, "Failed to allocate memory for "
207 "configuration data.");
208 os_free(conf);
209 os_free(bss);
210 return NULL;
211 }
212 conf->bss = os_calloc(1, sizeof(struct hostapd_bss_config *));
213 if (conf->bss == NULL) {
214 os_free(conf);
215 os_free(bss);
216 return NULL;
217 }
218 conf->bss[0] = bss;
219
220 bss->radius = os_zalloc(sizeof(*bss->radius));
221 if (bss->radius == NULL) {
222 os_free(conf->bss);
223 os_free(conf);
224 os_free(bss);
225 return NULL;
226 }
227
228 hostapd_config_defaults_bss(bss);
229
230 conf->num_bss = 1;
231
232 conf->beacon_int = 100;
233 conf->rts_threshold = -2; /* use driver default: 2347 */
234 conf->fragm_threshold = -2; /* user driver default: 2346 */
235 /* Set to invalid value means do not add Power Constraint IE */
236 conf->local_pwr_constraint = -1;
237
238 conf->wmm_ac_params[0] = ac_be;
239 conf->wmm_ac_params[1] = ac_bk;
240 conf->wmm_ac_params[2] = ac_vi;
241 conf->wmm_ac_params[3] = ac_vo;
242
243 conf->tx_queue[0] = txq_vo;
244 conf->tx_queue[1] = txq_vi;
245 conf->tx_queue[2] = txq_be;
246 conf->tx_queue[3] = txq_bk;
247
248 conf->ht_capab = HT_CAP_INFO_SMPS_DISABLED;
249
250 conf->ap_table_max_size = 255;
251 conf->ap_table_expiration_time = 60;
252 conf->track_sta_max_age = 180;
253
254 #ifdef CONFIG_TESTING_OPTIONS
255 conf->ignore_probe_probability = 0.0;
256 conf->ignore_auth_probability = 0.0;
257 conf->ignore_assoc_probability = 0.0;
258 conf->ignore_reassoc_probability = 0.0;
259 conf->corrupt_gtk_rekey_mic_probability = 0.0;
260 conf->ecsa_ie_only = 0;
261 #endif /* CONFIG_TESTING_OPTIONS */
262
263 conf->acs = 0;
264 conf->acs_ch_list.num = 0;
265 #ifdef CONFIG_ACS
266 conf->acs_num_scans = 5;
267 #endif /* CONFIG_ACS */
268
269 #ifdef CONFIG_IEEE80211AX
270 conf->he_op.he_rts_threshold = HE_OPERATION_RTS_THRESHOLD_MASK >>
271 HE_OPERATION_RTS_THRESHOLD_OFFSET;
272 /* Set default basic MCS/NSS set to single stream MCS 0-7 */
273 conf->he_op.he_basic_mcs_nss_set = 0xfffc;
274 conf->he_op.he_bss_color_disabled = 1;
275 conf->he_op.he_bss_color_partial = 0;
276 conf->he_op.he_bss_color = os_random() % 63 + 1;
277 conf->he_op.he_twt_responder = 1;
278 conf->he_6ghz_max_mpdu = 2;
279 conf->he_6ghz_max_ampdu_len_exp = 7;
280 conf->he_6ghz_rx_ant_pat = 1;
281 conf->he_6ghz_tx_ant_pat = 1;
282 #endif /* CONFIG_IEEE80211AX */
283
284 /* The third octet of the country string uses an ASCII space character
285 * by default to indicate that the regulations encompass all
286 * environments for the current frequency band in the country. */
287 conf->country[2] = ' ';
288
289 conf->rssi_reject_assoc_rssi = 0;
290 conf->rssi_reject_assoc_timeout = 30;
291
292 #ifdef CONFIG_AIRTIME_POLICY
293 conf->airtime_update_interval = AIRTIME_DEFAULT_UPDATE_INTERVAL;
294 #endif /* CONFIG_AIRTIME_POLICY */
295
296 return conf;
297 }
298
299
hostapd_mac_comp(const void * a,const void * b)300 int hostapd_mac_comp(const void *a, const void *b)
301 {
302 return os_memcmp(a, b, sizeof(macaddr));
303 }
304
305
hostapd_config_read_wpa_psk(const char * fname,struct hostapd_ssid * ssid)306 static int hostapd_config_read_wpa_psk(const char *fname,
307 struct hostapd_ssid *ssid)
308 {
309 FILE *f;
310 char buf[128], *pos;
311 const char *keyid;
312 char *context;
313 char *context2;
314 char *token;
315 char *name;
316 char *value;
317 int line = 0, ret = 0, len, ok;
318 u8 addr[ETH_ALEN];
319 struct hostapd_wpa_psk *psk;
320
321 if (!fname)
322 return 0;
323
324 f = fopen(fname, "r");
325 if (!f) {
326 wpa_printf(MSG_ERROR, "WPA PSK file '%s' not found.", fname);
327 return -1;
328 }
329
330 while (fgets(buf, sizeof(buf), f)) {
331 int vlan_id = 0;
332 int wps = 0;
333
334 line++;
335
336 if (buf[0] == '#')
337 continue;
338 pos = buf;
339 while (*pos != '\0') {
340 if (*pos == '\n') {
341 *pos = '\0';
342 break;
343 }
344 pos++;
345 }
346 if (buf[0] == '\0')
347 continue;
348
349 context = NULL;
350 keyid = NULL;
351 while ((token = str_token(buf, " ", &context))) {
352 if (!os_strchr(token, '='))
353 break;
354 context2 = NULL;
355 name = str_token(token, "=", &context2);
356 if (!name)
357 break;
358 value = str_token(token, "", &context2);
359 if (!value)
360 value = "";
361 if (!os_strcmp(name, "keyid")) {
362 keyid = value;
363 } else if (!os_strcmp(name, "wps")) {
364 wps = atoi(value);
365 } else if (!os_strcmp(name, "vlanid")) {
366 vlan_id = atoi(value);
367 } else {
368 wpa_printf(MSG_ERROR,
369 "Unrecognized '%s=%s' on line %d in '%s'",
370 name, value, line, fname);
371 ret = -1;
372 break;
373 }
374 }
375
376 if (ret == -1)
377 break;
378
379 if (!token)
380 token = "";
381 if (hwaddr_aton(token, addr)) {
382 wpa_printf(MSG_ERROR,
383 "Invalid MAC address '%s' on line %d in '%s'",
384 token, line, fname);
385 ret = -1;
386 break;
387 }
388
389 psk = os_zalloc(sizeof(*psk));
390 if (psk == NULL) {
391 wpa_printf(MSG_ERROR, "WPA PSK allocation failed");
392 ret = -1;
393 break;
394 }
395 psk->vlan_id = vlan_id;
396 if (is_zero_ether_addr(addr))
397 psk->group = 1;
398 else
399 os_memcpy(psk->addr, addr, ETH_ALEN);
400
401 pos = str_token(buf, "", &context);
402 if (!pos) {
403 wpa_printf(MSG_ERROR, "No PSK on line %d in '%s'",
404 line, fname);
405 os_free(psk);
406 ret = -1;
407 break;
408 }
409
410 ok = 0;
411 len = os_strlen(pos);
412 if (len == 2 * PMK_LEN &&
413 hexstr2bin(pos, psk->psk, PMK_LEN) == 0)
414 ok = 1;
415 else if (len >= 8 && len < 64 &&
416 pbkdf2_sha1(pos, ssid->ssid, ssid->ssid_len,
417 4096, psk->psk, PMK_LEN) == 0)
418 ok = 1;
419 if (!ok) {
420 wpa_printf(MSG_ERROR,
421 "Invalid PSK '%s' on line %d in '%s'",
422 pos, line, fname);
423 os_free(psk);
424 ret = -1;
425 break;
426 }
427
428 if (keyid) {
429 len = os_strlcpy(psk->keyid, keyid, sizeof(psk->keyid));
430 if ((size_t) len >= sizeof(psk->keyid)) {
431 wpa_printf(MSG_ERROR,
432 "PSK keyid too long on line %d in '%s'",
433 line, fname);
434 os_free(psk);
435 ret = -1;
436 break;
437 }
438 }
439
440 psk->wps = wps;
441
442 psk->next = ssid->wpa_psk;
443 ssid->wpa_psk = psk;
444 }
445
446 fclose(f);
447
448 return ret;
449 }
450
451
hostapd_derive_psk(struct hostapd_ssid * ssid)452 static int hostapd_derive_psk(struct hostapd_ssid *ssid)
453 {
454 ssid->wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
455 if (ssid->wpa_psk == NULL) {
456 wpa_printf(MSG_ERROR, "Unable to alloc space for PSK");
457 return -1;
458 }
459 wpa_hexdump_ascii(MSG_DEBUG, "SSID",
460 (u8 *) ssid->ssid, ssid->ssid_len);
461 wpa_hexdump_ascii_key(MSG_DEBUG, "PSK (ASCII passphrase)",
462 (u8 *) ssid->wpa_passphrase,
463 os_strlen(ssid->wpa_passphrase));
464 pbkdf2_sha1(ssid->wpa_passphrase,
465 ssid->ssid, ssid->ssid_len,
466 4096, ssid->wpa_psk->psk, PMK_LEN);
467 wpa_hexdump_key(MSG_DEBUG, "PSK (from passphrase)",
468 ssid->wpa_psk->psk, PMK_LEN);
469 return 0;
470 }
471
472
hostapd_setup_sae_pt(struct hostapd_bss_config * conf)473 int hostapd_setup_sae_pt(struct hostapd_bss_config *conf)
474 {
475 #ifdef CONFIG_SAE
476 struct hostapd_ssid *ssid = &conf->ssid;
477 struct sae_password_entry *pw;
478
479 if ((conf->sae_pwe == 0 && !hostapd_sae_pw_id_in_use(conf) &&
480 !hostapd_sae_pk_in_use(conf)) ||
481 conf->sae_pwe == 3 ||
482 !wpa_key_mgmt_sae(conf->wpa_key_mgmt))
483 return 0; /* PT not needed */
484
485 sae_deinit_pt(ssid->pt);
486 ssid->pt = NULL;
487 if (ssid->wpa_passphrase) {
488 ssid->pt = sae_derive_pt(conf->sae_groups, ssid->ssid,
489 ssid->ssid_len,
490 (const u8 *) ssid->wpa_passphrase,
491 os_strlen(ssid->wpa_passphrase),
492 NULL);
493 if (!ssid->pt)
494 return -1;
495 }
496
497 for (pw = conf->sae_passwords; pw; pw = pw->next) {
498 sae_deinit_pt(pw->pt);
499 pw->pt = sae_derive_pt(conf->sae_groups, ssid->ssid,
500 ssid->ssid_len,
501 (const u8 *) pw->password,
502 os_strlen(pw->password),
503 pw->identifier);
504 if (!pw->pt)
505 return -1;
506 }
507 #endif /* CONFIG_SAE */
508
509 return 0;
510 }
511
512
hostapd_setup_wpa_psk(struct hostapd_bss_config * conf)513 int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf)
514 {
515 struct hostapd_ssid *ssid = &conf->ssid;
516
517 if (hostapd_setup_sae_pt(conf) < 0)
518 return -1;
519
520 if (ssid->wpa_passphrase != NULL) {
521 if (ssid->wpa_psk != NULL) {
522 wpa_printf(MSG_DEBUG, "Using pre-configured WPA PSK "
523 "instead of passphrase");
524 } else {
525 wpa_printf(MSG_DEBUG, "Deriving WPA PSK based on "
526 "passphrase");
527 if (hostapd_derive_psk(ssid) < 0)
528 return -1;
529 }
530 ssid->wpa_psk->group = 1;
531 }
532
533 return hostapd_config_read_wpa_psk(ssid->wpa_psk_file, &conf->ssid);
534 }
535
536
hostapd_config_free_radius(struct hostapd_radius_server * servers,int num_servers)537 static void hostapd_config_free_radius(struct hostapd_radius_server *servers,
538 int num_servers)
539 {
540 int i;
541
542 for (i = 0; i < num_servers; i++) {
543 os_free(servers[i].shared_secret);
544 }
545 os_free(servers);
546 }
547
548
549 struct hostapd_radius_attr *
hostapd_config_get_radius_attr(struct hostapd_radius_attr * attr,u8 type)550 hostapd_config_get_radius_attr(struct hostapd_radius_attr *attr, u8 type)
551 {
552 for (; attr; attr = attr->next) {
553 if (attr->type == type)
554 return attr;
555 }
556 return NULL;
557 }
558
559
hostapd_parse_radius_attr(const char * value)560 struct hostapd_radius_attr * hostapd_parse_radius_attr(const char *value)
561 {
562 const char *pos;
563 char syntax;
564 struct hostapd_radius_attr *attr;
565 size_t len;
566
567 attr = os_zalloc(sizeof(*attr));
568 if (!attr)
569 return NULL;
570
571 attr->type = atoi(value);
572
573 pos = os_strchr(value, ':');
574 if (!pos) {
575 attr->val = wpabuf_alloc(1);
576 if (!attr->val) {
577 os_free(attr);
578 return NULL;
579 }
580 wpabuf_put_u8(attr->val, 0);
581 return attr;
582 }
583
584 pos++;
585 if (pos[0] == '\0' || pos[1] != ':') {
586 os_free(attr);
587 return NULL;
588 }
589 syntax = *pos++;
590 pos++;
591
592 switch (syntax) {
593 case 's':
594 attr->val = wpabuf_alloc_copy(pos, os_strlen(pos));
595 break;
596 case 'x':
597 len = os_strlen(pos);
598 if (len & 1)
599 break;
600 len /= 2;
601 attr->val = wpabuf_alloc(len);
602 if (!attr->val)
603 break;
604 if (hexstr2bin(pos, wpabuf_put(attr->val, len), len) < 0) {
605 wpabuf_free(attr->val);
606 os_free(attr);
607 return NULL;
608 }
609 break;
610 case 'd':
611 attr->val = wpabuf_alloc(4);
612 if (attr->val)
613 wpabuf_put_be32(attr->val, atoi(pos));
614 break;
615 default:
616 os_free(attr);
617 return NULL;
618 }
619
620 if (!attr->val) {
621 os_free(attr);
622 return NULL;
623 }
624
625 return attr;
626 }
627
628
hostapd_config_free_radius_attr(struct hostapd_radius_attr * attr)629 void hostapd_config_free_radius_attr(struct hostapd_radius_attr *attr)
630 {
631 struct hostapd_radius_attr *prev;
632
633 while (attr) {
634 prev = attr;
635 attr = attr->next;
636 wpabuf_free(prev->val);
637 os_free(prev);
638 }
639 }
640
641
hostapd_config_free_eap_user(struct hostapd_eap_user * user)642 void hostapd_config_free_eap_user(struct hostapd_eap_user *user)
643 {
644 hostapd_config_free_radius_attr(user->accept_attr);
645 os_free(user->identity);
646 bin_clear_free(user->password, user->password_len);
647 bin_clear_free(user->salt, user->salt_len);
648 os_free(user);
649 }
650
651
hostapd_config_free_eap_users(struct hostapd_eap_user * user)652 void hostapd_config_free_eap_users(struct hostapd_eap_user *user)
653 {
654 struct hostapd_eap_user *prev_user;
655
656 while (user) {
657 prev_user = user;
658 user = user->next;
659 hostapd_config_free_eap_user(prev_user);
660 }
661 }
662
663
664 #ifdef CONFIG_WEP
hostapd_config_free_wep(struct hostapd_wep_keys * keys)665 static void hostapd_config_free_wep(struct hostapd_wep_keys *keys)
666 {
667 int i;
668 for (i = 0; i < NUM_WEP_KEYS; i++) {
669 bin_clear_free(keys->key[i], keys->len[i]);
670 keys->key[i] = NULL;
671 }
672 }
673 #endif /* CONFIG_WEP */
674
675
hostapd_config_clear_wpa_psk(struct hostapd_wpa_psk ** l)676 void hostapd_config_clear_wpa_psk(struct hostapd_wpa_psk **l)
677 {
678 struct hostapd_wpa_psk *psk, *tmp;
679
680 for (psk = *l; psk;) {
681 tmp = psk;
682 psk = psk->next;
683 bin_clear_free(tmp, sizeof(*tmp));
684 }
685 *l = NULL;
686 }
687
688
hostapd_config_free_anqp_elem(struct hostapd_bss_config * conf)689 static void hostapd_config_free_anqp_elem(struct hostapd_bss_config *conf)
690 {
691 struct anqp_element *elem;
692
693 while ((elem = dl_list_first(&conf->anqp_elem, struct anqp_element,
694 list))) {
695 dl_list_del(&elem->list);
696 wpabuf_free(elem->payload);
697 os_free(elem);
698 }
699 }
700
701
hostapd_config_free_fils_realms(struct hostapd_bss_config * conf)702 static void hostapd_config_free_fils_realms(struct hostapd_bss_config *conf)
703 {
704 #ifdef CONFIG_FILS
705 struct fils_realm *realm;
706
707 while ((realm = dl_list_first(&conf->fils_realms, struct fils_realm,
708 list))) {
709 dl_list_del(&realm->list);
710 os_free(realm);
711 }
712 #endif /* CONFIG_FILS */
713 }
714
715
hostapd_config_free_sae_passwords(struct hostapd_bss_config * conf)716 static void hostapd_config_free_sae_passwords(struct hostapd_bss_config *conf)
717 {
718 struct sae_password_entry *pw, *tmp;
719
720 pw = conf->sae_passwords;
721 conf->sae_passwords = NULL;
722 while (pw) {
723 tmp = pw;
724 pw = pw->next;
725 str_clear_free(tmp->password);
726 os_free(tmp->identifier);
727 #ifdef CONFIG_SAE
728 sae_deinit_pt(tmp->pt);
729 #endif /* CONFIG_SAE */
730 #ifdef CONFIG_SAE_PK
731 sae_deinit_pk(tmp->pk);
732 #endif /* CONFIG_SAE_PK */
733 os_free(tmp);
734 }
735 }
736
737
738 #ifdef CONFIG_DPP2
hostapd_dpp_controller_conf_free(struct dpp_controller_conf * conf)739 static void hostapd_dpp_controller_conf_free(struct dpp_controller_conf *conf)
740 {
741 struct dpp_controller_conf *prev;
742
743 while (conf) {
744 prev = conf;
745 conf = conf->next;
746 os_free(prev);
747 }
748 }
749 #endif /* CONFIG_DPP2 */
750
751
hostapd_config_free_bss(struct hostapd_bss_config * conf)752 void hostapd_config_free_bss(struct hostapd_bss_config *conf)
753 {
754 #if defined(CONFIG_WPS) || defined(CONFIG_HS20)
755 size_t i;
756 #endif
757
758 if (conf == NULL)
759 return;
760
761 hostapd_config_clear_wpa_psk(&conf->ssid.wpa_psk);
762
763 str_clear_free(conf->ssid.wpa_passphrase);
764 os_free(conf->ssid.wpa_psk_file);
765 #ifdef CONFIG_WEP
766 hostapd_config_free_wep(&conf->ssid.wep);
767 #endif /* CONFIG_WEP */
768 #ifdef CONFIG_FULL_DYNAMIC_VLAN
769 os_free(conf->ssid.vlan_tagged_interface);
770 #endif /* CONFIG_FULL_DYNAMIC_VLAN */
771 #ifdef CONFIG_SAE
772 sae_deinit_pt(conf->ssid.pt);
773 #endif /* CONFIG_SAE */
774
775 hostapd_config_free_eap_users(conf->eap_user);
776 os_free(conf->eap_user_sqlite);
777
778 os_free(conf->eap_req_id_text);
779 os_free(conf->erp_domain);
780 os_free(conf->accept_mac);
781 os_free(conf->deny_mac);
782 os_free(conf->nas_identifier);
783 if (conf->radius) {
784 hostapd_config_free_radius(conf->radius->auth_servers,
785 conf->radius->num_auth_servers);
786 hostapd_config_free_radius(conf->radius->acct_servers,
787 conf->radius->num_acct_servers);
788 os_free(conf->radius->force_client_dev);
789 }
790 hostapd_config_free_radius_attr(conf->radius_auth_req_attr);
791 hostapd_config_free_radius_attr(conf->radius_acct_req_attr);
792 os_free(conf->radius_req_attr_sqlite);
793 os_free(conf->rsn_preauth_interfaces);
794 os_free(conf->ctrl_interface);
795 os_free(conf->ca_cert);
796 os_free(conf->server_cert);
797 os_free(conf->server_cert2);
798 os_free(conf->private_key);
799 os_free(conf->private_key2);
800 os_free(conf->private_key_passwd);
801 os_free(conf->private_key_passwd2);
802 os_free(conf->check_cert_subject);
803 os_free(conf->ocsp_stapling_response);
804 os_free(conf->ocsp_stapling_response_multi);
805 os_free(conf->dh_file);
806 os_free(conf->openssl_ciphers);
807 os_free(conf->openssl_ecdh_curves);
808 os_free(conf->pac_opaque_encr_key);
809 os_free(conf->eap_fast_a_id);
810 os_free(conf->eap_fast_a_id_info);
811 os_free(conf->eap_sim_db);
812 os_free(conf->radius_server_clients);
813 os_free(conf->radius);
814 os_free(conf->radius_das_shared_secret);
815 hostapd_config_free_vlan(conf);
816 os_free(conf->time_zone);
817
818 #ifdef CONFIG_IEEE80211R_AP
819 {
820 struct ft_remote_r0kh *r0kh, *r0kh_prev;
821 struct ft_remote_r1kh *r1kh, *r1kh_prev;
822
823 r0kh = conf->r0kh_list;
824 conf->r0kh_list = NULL;
825 while (r0kh) {
826 r0kh_prev = r0kh;
827 r0kh = r0kh->next;
828 os_free(r0kh_prev);
829 }
830
831 r1kh = conf->r1kh_list;
832 conf->r1kh_list = NULL;
833 while (r1kh) {
834 r1kh_prev = r1kh;
835 r1kh = r1kh->next;
836 os_free(r1kh_prev);
837 }
838 }
839 #endif /* CONFIG_IEEE80211R_AP */
840
841 #ifdef CONFIG_WPS
842 os_free(conf->wps_pin_requests);
843 os_free(conf->device_name);
844 os_free(conf->manufacturer);
845 os_free(conf->model_name);
846 os_free(conf->model_number);
847 os_free(conf->serial_number);
848 os_free(conf->config_methods);
849 os_free(conf->ap_pin);
850 os_free(conf->extra_cred);
851 os_free(conf->ap_settings);
852 hostapd_config_clear_wpa_psk(&conf->multi_ap_backhaul_ssid.wpa_psk);
853 str_clear_free(conf->multi_ap_backhaul_ssid.wpa_passphrase);
854 os_free(conf->upnp_iface);
855 os_free(conf->friendly_name);
856 os_free(conf->manufacturer_url);
857 os_free(conf->model_description);
858 os_free(conf->model_url);
859 os_free(conf->upc);
860 for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++)
861 wpabuf_free(conf->wps_vendor_ext[i]);
862 wpabuf_free(conf->wps_application_ext);
863 wpabuf_free(conf->wps_nfc_dh_pubkey);
864 wpabuf_free(conf->wps_nfc_dh_privkey);
865 wpabuf_free(conf->wps_nfc_dev_pw);
866 #endif /* CONFIG_WPS */
867
868 os_free(conf->roaming_consortium);
869 os_free(conf->venue_name);
870 os_free(conf->venue_url);
871 os_free(conf->nai_realm_data);
872 os_free(conf->network_auth_type);
873 os_free(conf->anqp_3gpp_cell_net);
874 os_free(conf->domain_name);
875 hostapd_config_free_anqp_elem(conf);
876
877 #ifdef CONFIG_RADIUS_TEST
878 os_free(conf->dump_msk_file);
879 #endif /* CONFIG_RADIUS_TEST */
880
881 #ifdef CONFIG_HS20
882 os_free(conf->hs20_oper_friendly_name);
883 os_free(conf->hs20_wan_metrics);
884 os_free(conf->hs20_connection_capability);
885 os_free(conf->hs20_operating_class);
886 os_free(conf->hs20_icons);
887 if (conf->hs20_osu_providers) {
888 for (i = 0; i < conf->hs20_osu_providers_count; i++) {
889 struct hs20_osu_provider *p;
890 size_t j;
891 p = &conf->hs20_osu_providers[i];
892 os_free(p->friendly_name);
893 os_free(p->server_uri);
894 os_free(p->method_list);
895 for (j = 0; j < p->icons_count; j++)
896 os_free(p->icons[j]);
897 os_free(p->icons);
898 os_free(p->osu_nai);
899 os_free(p->osu_nai2);
900 os_free(p->service_desc);
901 }
902 os_free(conf->hs20_osu_providers);
903 }
904 if (conf->hs20_operator_icon) {
905 for (i = 0; i < conf->hs20_operator_icon_count; i++)
906 os_free(conf->hs20_operator_icon[i]);
907 os_free(conf->hs20_operator_icon);
908 }
909 os_free(conf->subscr_remediation_url);
910 os_free(conf->hs20_sim_provisioning_url);
911 os_free(conf->t_c_filename);
912 os_free(conf->t_c_server_url);
913 #endif /* CONFIG_HS20 */
914
915 wpabuf_free(conf->vendor_elements);
916 wpabuf_free(conf->assocresp_elements);
917
918 os_free(conf->sae_groups);
919 #ifdef CONFIG_OWE
920 os_free(conf->owe_groups);
921 #endif /* CONFIG_OWE */
922
923 os_free(conf->wowlan_triggers);
924
925 os_free(conf->server_id);
926
927 #ifdef CONFIG_TESTING_OPTIONS
928 wpabuf_free(conf->own_ie_override);
929 wpabuf_free(conf->sae_commit_override);
930 wpabuf_free(conf->rsne_override_eapol);
931 wpabuf_free(conf->rsnxe_override_eapol);
932 wpabuf_free(conf->rsne_override_ft);
933 wpabuf_free(conf->rsnxe_override_ft);
934 wpabuf_free(conf->gtk_rsc_override);
935 wpabuf_free(conf->igtk_rsc_override);
936 #endif /* CONFIG_TESTING_OPTIONS */
937
938 os_free(conf->no_probe_resp_if_seen_on);
939 os_free(conf->no_auth_if_seen_on);
940
941 hostapd_config_free_fils_realms(conf);
942
943 #ifdef CONFIG_DPP
944 os_free(conf->dpp_name);
945 os_free(conf->dpp_mud_url);
946 os_free(conf->dpp_connector);
947 wpabuf_free(conf->dpp_netaccesskey);
948 wpabuf_free(conf->dpp_csign);
949 #ifdef CONFIG_DPP2
950 hostapd_dpp_controller_conf_free(conf->dpp_controller);
951 #endif /* CONFIG_DPP2 */
952 #endif /* CONFIG_DPP */
953
954 hostapd_config_free_sae_passwords(conf);
955
956 #ifdef CONFIG_AIRTIME_POLICY
957 {
958 struct airtime_sta_weight *wt, *wt_prev;
959
960 wt = conf->airtime_weight_list;
961 conf->airtime_weight_list = NULL;
962 while (wt) {
963 wt_prev = wt;
964 wt = wt->next;
965 os_free(wt_prev);
966 }
967 }
968 #endif /* CONFIG_AIRTIME_POLICY */
969
970 #ifdef CONFIG_PASN
971 os_free(conf->pasn_groups);
972 #endif /* CONFIG_PASN */
973
974 os_free(conf);
975 }
976
977
978 /**
979 * hostapd_config_free - Free hostapd configuration
980 * @conf: Configuration data from hostapd_config_read().
981 */
hostapd_config_free(struct hostapd_config * conf)982 void hostapd_config_free(struct hostapd_config *conf)
983 {
984 size_t i;
985
986 if (conf == NULL)
987 return;
988
989 for (i = 0; i < conf->num_bss; i++)
990 hostapd_config_free_bss(conf->bss[i]);
991 os_free(conf->bss);
992 os_free(conf->supported_rates);
993 os_free(conf->basic_rates);
994 os_free(conf->acs_ch_list.range);
995 os_free(conf->acs_freq_list.range);
996 os_free(conf->driver_params);
997 #ifdef CONFIG_ACS
998 os_free(conf->acs_chan_bias);
999 #endif /* CONFIG_ACS */
1000 wpabuf_free(conf->lci);
1001 wpabuf_free(conf->civic);
1002
1003 os_free(conf);
1004 }
1005
1006
1007 /**
1008 * hostapd_maclist_found - Find a MAC address from a list
1009 * @list: MAC address list
1010 * @num_entries: Number of addresses in the list
1011 * @addr: Address to search for
1012 * @vlan_id: Buffer for returning VLAN ID or %NULL if not needed
1013 * Returns: 1 if address is in the list or 0 if not.
1014 *
1015 * Perform a binary search for given MAC address from a pre-sorted list.
1016 */
hostapd_maclist_found(struct mac_acl_entry * list,int num_entries,const u8 * addr,struct vlan_description * vlan_id)1017 int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
1018 const u8 *addr, struct vlan_description *vlan_id)
1019 {
1020 int start, end, middle, res;
1021
1022 start = 0;
1023 end = num_entries - 1;
1024
1025 while (start <= end) {
1026 middle = (start + end) / 2;
1027 res = os_memcmp(list[middle].addr, addr, ETH_ALEN);
1028 if (res == 0) {
1029 if (vlan_id)
1030 *vlan_id = list[middle].vlan_id;
1031 return 1;
1032 }
1033 if (res < 0)
1034 start = middle + 1;
1035 else
1036 end = middle - 1;
1037 }
1038
1039 return 0;
1040 }
1041
1042
hostapd_rate_found(int * list,int rate)1043 int hostapd_rate_found(int *list, int rate)
1044 {
1045 int i;
1046
1047 if (list == NULL)
1048 return 0;
1049
1050 for (i = 0; list[i] >= 0; i++)
1051 if (list[i] == rate)
1052 return 1;
1053
1054 return 0;
1055 }
1056
1057
hostapd_vlan_valid(struct hostapd_vlan * vlan,struct vlan_description * vlan_desc)1058 int hostapd_vlan_valid(struct hostapd_vlan *vlan,
1059 struct vlan_description *vlan_desc)
1060 {
1061 struct hostapd_vlan *v = vlan;
1062 int i;
1063
1064 if (!vlan_desc->notempty || vlan_desc->untagged < 0 ||
1065 vlan_desc->untagged > MAX_VLAN_ID)
1066 return 0;
1067 for (i = 0; i < MAX_NUM_TAGGED_VLAN; i++) {
1068 if (vlan_desc->tagged[i] < 0 ||
1069 vlan_desc->tagged[i] > MAX_VLAN_ID)
1070 return 0;
1071 }
1072 if (!vlan_desc->untagged && !vlan_desc->tagged[0])
1073 return 0;
1074
1075 while (v) {
1076 if (!vlan_compare(&v->vlan_desc, vlan_desc) ||
1077 v->vlan_id == VLAN_ID_WILDCARD)
1078 return 1;
1079 v = v->next;
1080 }
1081 return 0;
1082 }
1083
1084
hostapd_get_vlan_id_ifname(struct hostapd_vlan * vlan,int vlan_id)1085 const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan, int vlan_id)
1086 {
1087 struct hostapd_vlan *v = vlan;
1088 while (v) {
1089 if (v->vlan_id == vlan_id)
1090 return v->ifname;
1091 v = v->next;
1092 }
1093 return NULL;
1094 }
1095
1096
hostapd_get_psk(const struct hostapd_bss_config * conf,const u8 * addr,const u8 * p2p_dev_addr,const u8 * prev_psk,int * vlan_id)1097 const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
1098 const u8 *addr, const u8 *p2p_dev_addr,
1099 const u8 *prev_psk, int *vlan_id)
1100 {
1101 struct hostapd_wpa_psk *psk;
1102 int next_ok = prev_psk == NULL;
1103
1104 if (vlan_id)
1105 *vlan_id = 0;
1106
1107 if (p2p_dev_addr && !is_zero_ether_addr(p2p_dev_addr)) {
1108 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
1109 " p2p_dev_addr=" MACSTR " prev_psk=%p",
1110 MAC2STR(addr), MAC2STR(p2p_dev_addr), prev_psk);
1111 addr = NULL; /* Use P2P Device Address for matching */
1112 } else {
1113 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
1114 " prev_psk=%p",
1115 MAC2STR(addr), prev_psk);
1116 }
1117
1118 for (psk = conf->ssid.wpa_psk; psk != NULL; psk = psk->next) {
1119 if (next_ok &&
1120 (psk->group ||
1121 (addr && os_memcmp(psk->addr, addr, ETH_ALEN) == 0) ||
1122 (!addr && p2p_dev_addr &&
1123 os_memcmp(psk->p2p_dev_addr, p2p_dev_addr, ETH_ALEN) ==
1124 0))) {
1125 if (vlan_id)
1126 *vlan_id = psk->vlan_id;
1127 return psk->psk;
1128 }
1129
1130 if (psk->psk == prev_psk)
1131 next_ok = 1;
1132 }
1133
1134 return NULL;
1135 }
1136
1137
1138 #ifdef CONFIG_SAE_PK
hostapd_sae_pk_password_without_pk(struct hostapd_bss_config * bss)1139 static bool hostapd_sae_pk_password_without_pk(struct hostapd_bss_config *bss)
1140 {
1141 struct sae_password_entry *pw;
1142 bool res = false;
1143
1144 if (bss->ssid.wpa_passphrase &&
1145 #ifdef CONFIG_TESTING_OPTIONS
1146 !bss->sae_pk_password_check_skip &&
1147 #endif /* CONFIG_TESTING_OPTIONS */
1148 sae_pk_valid_password(bss->ssid.wpa_passphrase))
1149 res = true;
1150
1151 for (pw = bss->sae_passwords; pw; pw = pw->next) {
1152 if (!pw->pk &&
1153 #ifdef CONFIG_TESTING_OPTIONS
1154 !bss->sae_pk_password_check_skip &&
1155 #endif /* CONFIG_TESTING_OPTIONS */
1156 sae_pk_valid_password(pw->password))
1157 return true;
1158
1159 if (bss->ssid.wpa_passphrase && res && pw->pk &&
1160 os_strcmp(bss->ssid.wpa_passphrase, pw->password) == 0)
1161 res = false;
1162 }
1163
1164 return res;
1165 }
1166 #endif /* CONFIG_SAE_PK */
1167
1168
hostapd_config_check_bss_6g(struct hostapd_bss_config * bss)1169 static bool hostapd_config_check_bss_6g(struct hostapd_bss_config *bss)
1170 {
1171 if (bss->wpa != WPA_PROTO_RSN) {
1172 wpa_printf(MSG_ERROR,
1173 "Pre-RSNA security methods are not allowed in 6 GHz");
1174 return false;
1175 }
1176
1177 if (bss->ieee80211w != MGMT_FRAME_PROTECTION_REQUIRED) {
1178 wpa_printf(MSG_ERROR,
1179 "Management frame protection is required in 6 GHz");
1180 return false;
1181 }
1182
1183 if (bss->wpa_key_mgmt & (WPA_KEY_MGMT_PSK |
1184 WPA_KEY_MGMT_FT_PSK |
1185 WPA_KEY_MGMT_PSK_SHA256)) {
1186 wpa_printf(MSG_ERROR, "Invalid AKM suite for 6 GHz");
1187 return false;
1188 }
1189
1190 if (bss->rsn_pairwise & (WPA_CIPHER_WEP40 |
1191 WPA_CIPHER_WEP104 |
1192 WPA_CIPHER_TKIP)) {
1193 wpa_printf(MSG_ERROR,
1194 "Invalid pairwise cipher suite for 6 GHz");
1195 return false;
1196 }
1197
1198 if (bss->wpa_group & (WPA_CIPHER_WEP40 |
1199 WPA_CIPHER_WEP104 |
1200 WPA_CIPHER_TKIP)) {
1201 wpa_printf(MSG_ERROR, "Invalid group cipher suite for 6 GHz");
1202 return false;
1203 }
1204
1205 return true;
1206 }
1207
1208
hostapd_config_check_bss(struct hostapd_bss_config * bss,struct hostapd_config * conf,int full_config)1209 static int hostapd_config_check_bss(struct hostapd_bss_config *bss,
1210 struct hostapd_config *conf,
1211 int full_config)
1212 {
1213 if (full_config && is_6ghz_op_class(conf->op_class) &&
1214 !hostapd_config_check_bss_6g(bss))
1215 return -1;
1216
1217 if (full_config && bss->ieee802_1x && !bss->eap_server &&
1218 !bss->radius->auth_servers) {
1219 wpa_printf(MSG_ERROR, "Invalid IEEE 802.1X configuration (no "
1220 "EAP authenticator configured).");
1221 return -1;
1222 }
1223
1224 #ifdef CONFIG_WEP
1225 if (bss->wpa) {
1226 int wep, i;
1227
1228 wep = bss->default_wep_key_len > 0 ||
1229 bss->individual_wep_key_len > 0;
1230 for (i = 0; i < NUM_WEP_KEYS; i++) {
1231 if (bss->ssid.wep.keys_set) {
1232 wep = 1;
1233 break;
1234 }
1235 }
1236
1237 if (wep) {
1238 wpa_printf(MSG_ERROR, "WEP configuration in a WPA network is not supported");
1239 return -1;
1240 }
1241 }
1242 #endif /* CONFIG_WEP */
1243
1244 if (full_config && bss->wpa &&
1245 bss->wpa_psk_radius != PSK_RADIUS_IGNORED &&
1246 bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) {
1247 wpa_printf(MSG_ERROR, "WPA-PSK using RADIUS enabled, but no "
1248 "RADIUS checking (macaddr_acl=2) enabled.");
1249 return -1;
1250 }
1251
1252 if (full_config && bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) &&
1253 bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL &&
1254 bss->ssid.wpa_psk_file == NULL &&
1255 (bss->wpa_psk_radius != PSK_RADIUS_REQUIRED ||
1256 bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH)) {
1257 wpa_printf(MSG_ERROR, "WPA-PSK enabled, but PSK or passphrase "
1258 "is not configured.");
1259 return -1;
1260 }
1261
1262 if (full_config && !is_zero_ether_addr(bss->bssid)) {
1263 size_t i;
1264
1265 for (i = 0; i < conf->num_bss; i++) {
1266 if (conf->bss[i] != bss &&
1267 (hostapd_mac_comp(conf->bss[i]->bssid,
1268 bss->bssid) == 0)) {
1269 wpa_printf(MSG_ERROR, "Duplicate BSSID " MACSTR
1270 " on interface '%s' and '%s'.",
1271 MAC2STR(bss->bssid),
1272 conf->bss[i]->iface, bss->iface);
1273 return -1;
1274 }
1275 }
1276 }
1277
1278 #ifdef CONFIG_IEEE80211R_AP
1279 if (full_config && wpa_key_mgmt_ft(bss->wpa_key_mgmt) &&
1280 (bss->nas_identifier == NULL ||
1281 os_strlen(bss->nas_identifier) < 1 ||
1282 os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) {
1283 wpa_printf(MSG_ERROR, "FT (IEEE 802.11r) requires "
1284 "nas_identifier to be configured as a 1..48 octet "
1285 "string");
1286 return -1;
1287 }
1288 #endif /* CONFIG_IEEE80211R_AP */
1289
1290 if (full_config && conf->ieee80211n &&
1291 conf->hw_mode == HOSTAPD_MODE_IEEE80211B) {
1292 bss->disable_11n = true;
1293 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) in 11b mode is not "
1294 "allowed, disabling HT capabilities");
1295 }
1296
1297 #ifdef CONFIG_WEP
1298 if (full_config && conf->ieee80211n &&
1299 bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1300 bss->disable_11n = true;
1301 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WEP is not "
1302 "allowed, disabling HT capabilities");
1303 }
1304 #endif /* CONFIG_WEP */
1305
1306 if (full_config && conf->ieee80211n && bss->wpa &&
1307 !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1308 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1309 WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1310 {
1311 bss->disable_11n = true;
1312 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WPA/WPA2 "
1313 "requires CCMP/GCMP to be enabled, disabling HT "
1314 "capabilities");
1315 }
1316
1317 #ifdef CONFIG_IEEE80211AC
1318 #ifdef CONFIG_WEP
1319 if (full_config && conf->ieee80211ac &&
1320 bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1321 bss->disable_11ac = true;
1322 wpa_printf(MSG_ERROR,
1323 "VHT (IEEE 802.11ac) with WEP is not allowed, disabling VHT capabilities");
1324 }
1325 #endif /* CONFIG_WEP */
1326
1327 if (full_config && conf->ieee80211ac && bss->wpa &&
1328 !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1329 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1330 WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1331 {
1332 bss->disable_11ac = true;
1333 wpa_printf(MSG_ERROR,
1334 "VHT (IEEE 802.11ac) with WPA/WPA2 requires CCMP/GCMP to be enabled, disabling VHT capabilities");
1335 }
1336 #endif /* CONFIG_IEEE80211AC */
1337
1338 #ifdef CONFIG_IEEE80211AX
1339 #ifdef CONFIG_WEP
1340 if (full_config && conf->ieee80211ax &&
1341 bss->ssid.security_policy == SECURITY_STATIC_WEP) {
1342 bss->disable_11ax = true;
1343 wpa_printf(MSG_ERROR,
1344 "HE (IEEE 802.11ax) with WEP is not allowed, disabling HE capabilities");
1345 }
1346 #endif /* CONFIG_WEP */
1347
1348 if (full_config && conf->ieee80211ax && bss->wpa &&
1349 !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
1350 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1351 WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
1352 {
1353 bss->disable_11ax = true;
1354 wpa_printf(MSG_ERROR,
1355 "HE (IEEE 802.11ax) with WPA/WPA2 requires CCMP/GCMP to be enabled, disabling HE capabilities");
1356 }
1357 #endif /* CONFIG_IEEE80211AX */
1358
1359 #ifdef CONFIG_WPS
1360 if (full_config && bss->wps_state && bss->ignore_broadcast_ssid) {
1361 wpa_printf(MSG_INFO, "WPS: ignore_broadcast_ssid "
1362 "configuration forced WPS to be disabled");
1363 bss->wps_state = 0;
1364 }
1365
1366 #ifdef CONFIG_WEP
1367 if (full_config && bss->wps_state &&
1368 bss->ssid.wep.keys_set && bss->wpa == 0) {
1369 wpa_printf(MSG_INFO, "WPS: WEP configuration forced WPS to be "
1370 "disabled");
1371 bss->wps_state = 0;
1372 }
1373 #endif /* CONFIG_WEP */
1374
1375 if (full_config && bss->wps_state && bss->wpa &&
1376 (!(bss->wpa & 2) ||
1377 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1378 WPA_CIPHER_CCMP_256 |
1379 WPA_CIPHER_GCMP_256)))) {
1380 wpa_printf(MSG_INFO, "WPS: WPA/TKIP configuration without "
1381 "WPA2/CCMP/GCMP forced WPS to be disabled");
1382 bss->wps_state = 0;
1383 }
1384 #endif /* CONFIG_WPS */
1385
1386 #ifdef CONFIG_HS20
1387 if (full_config && bss->hs20 &&
1388 (!(bss->wpa & 2) ||
1389 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
1390 WPA_CIPHER_CCMP_256 |
1391 WPA_CIPHER_GCMP_256)))) {
1392 wpa_printf(MSG_ERROR, "HS 2.0: WPA2-Enterprise/CCMP "
1393 "configuration is required for Hotspot 2.0 "
1394 "functionality");
1395 return -1;
1396 }
1397 #endif /* CONFIG_HS20 */
1398
1399 #ifdef CONFIG_MBO
1400 if (full_config && bss->mbo_enabled && (bss->wpa & 2) &&
1401 bss->ieee80211w == NO_MGMT_FRAME_PROTECTION) {
1402 wpa_printf(MSG_ERROR,
1403 "MBO: PMF needs to be enabled whenever using WPA2 with MBO");
1404 return -1;
1405 }
1406 #endif /* CONFIG_MBO */
1407
1408 #ifdef CONFIG_OCV
1409 if (full_config && bss->ieee80211w == NO_MGMT_FRAME_PROTECTION &&
1410 bss->ocv) {
1411 wpa_printf(MSG_ERROR,
1412 "OCV: PMF needs to be enabled whenever using OCV");
1413 return -1;
1414 }
1415 #endif /* CONFIG_OCV */
1416
1417 #ifdef CONFIG_SAE_PK
1418 if (full_config && hostapd_sae_pk_in_use(bss) &&
1419 hostapd_sae_pk_password_without_pk(bss)) {
1420 wpa_printf(MSG_ERROR,
1421 "SAE-PK: SAE password uses SAE-PK style, but does not have PK configured");
1422 return -1;
1423 }
1424 #endif /* CONFIG_SAE_PK */
1425
1426 #ifdef CONFIG_FILS
1427 if (full_config && bss->fils_discovery_min_int &&
1428 bss->unsol_bcast_probe_resp_interval) {
1429 wpa_printf(MSG_ERROR,
1430 "Cannot enable both FILS discovery and unsolicited broadcast Probe Response at the same time");
1431 return -1;
1432 }
1433 #endif /* CONFIG_FILS */
1434
1435 return 0;
1436 }
1437
1438
hostapd_config_check_cw(struct hostapd_config * conf,int queue)1439 static int hostapd_config_check_cw(struct hostapd_config *conf, int queue)
1440 {
1441 int tx_cwmin = conf->tx_queue[queue].cwmin;
1442 int tx_cwmax = conf->tx_queue[queue].cwmax;
1443 int ac_cwmin = conf->wmm_ac_params[queue].cwmin;
1444 int ac_cwmax = conf->wmm_ac_params[queue].cwmax;
1445
1446 if (tx_cwmin > tx_cwmax) {
1447 wpa_printf(MSG_ERROR,
1448 "Invalid TX queue cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1449 tx_cwmin, tx_cwmax);
1450 return -1;
1451 }
1452 if (ac_cwmin > ac_cwmax) {
1453 wpa_printf(MSG_ERROR,
1454 "Invalid WMM AC cwMin/cwMax values. cwMin(%d) greater than cwMax(%d)",
1455 ac_cwmin, ac_cwmax);
1456 return -1;
1457 }
1458 return 0;
1459 }
1460
1461
hostapd_config_check(struct hostapd_config * conf,int full_config)1462 int hostapd_config_check(struct hostapd_config *conf, int full_config)
1463 {
1464 size_t i;
1465
1466 if (full_config && conf->ieee80211d &&
1467 (!conf->country[0] || !conf->country[1])) {
1468 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11d without "
1469 "setting the country_code");
1470 return -1;
1471 }
1472
1473 if (full_config && conf->ieee80211h && !conf->ieee80211d) {
1474 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11h without "
1475 "IEEE 802.11d enabled");
1476 return -1;
1477 }
1478
1479 if (full_config && conf->local_pwr_constraint != -1 &&
1480 !conf->ieee80211d) {
1481 wpa_printf(MSG_ERROR, "Cannot add Power Constraint element without Country element");
1482 return -1;
1483 }
1484
1485 if (full_config && conf->spectrum_mgmt_required &&
1486 conf->local_pwr_constraint == -1) {
1487 wpa_printf(MSG_ERROR, "Cannot set Spectrum Management bit without Country and Power Constraint elements");
1488 return -1;
1489 }
1490
1491 #ifdef CONFIG_AIRTIME_POLICY
1492 if (full_config && conf->airtime_mode > AIRTIME_MODE_STATIC &&
1493 !conf->airtime_update_interval) {
1494 wpa_printf(MSG_ERROR, "Airtime update interval cannot be zero");
1495 return -1;
1496 }
1497 #endif /* CONFIG_AIRTIME_POLICY */
1498 for (i = 0; i < NUM_TX_QUEUES; i++) {
1499 if (hostapd_config_check_cw(conf, i))
1500 return -1;
1501 }
1502
1503 for (i = 0; i < conf->num_bss; i++) {
1504 if (hostapd_config_check_bss(conf->bss[i], conf, full_config))
1505 return -1;
1506 }
1507
1508 return 0;
1509 }
1510
1511
hostapd_set_security_params(struct hostapd_bss_config * bss,int full_config)1512 void hostapd_set_security_params(struct hostapd_bss_config *bss,
1513 int full_config)
1514 {
1515 #ifdef CONFIG_WEP
1516 if (bss->individual_wep_key_len == 0) {
1517 /* individual keys are not use; can use key idx0 for
1518 * broadcast keys */
1519 bss->broadcast_key_idx_min = 0;
1520 }
1521 #endif /* CONFIG_WEP */
1522
1523 if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
1524 bss->rsn_pairwise = bss->wpa_pairwise;
1525 if (bss->group_cipher)
1526 bss->wpa_group = bss->group_cipher;
1527 else
1528 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa,
1529 bss->wpa_pairwise,
1530 bss->rsn_pairwise);
1531 if (!bss->wpa_group_rekey_set)
1532 bss->wpa_group_rekey = bss->wpa_group == WPA_CIPHER_TKIP ?
1533 600 : 86400;
1534
1535 if (full_config) {
1536 bss->radius->auth_server = bss->radius->auth_servers;
1537 bss->radius->acct_server = bss->radius->acct_servers;
1538 }
1539
1540 if (bss->wpa && bss->ieee802_1x) {
1541 bss->ssid.security_policy = SECURITY_WPA;
1542 } else if (bss->wpa) {
1543 bss->ssid.security_policy = SECURITY_WPA_PSK;
1544 } else if (bss->ieee802_1x) {
1545 int cipher = WPA_CIPHER_NONE;
1546 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
1547 #ifdef CONFIG_WEP
1548 bss->ssid.wep.default_len = bss->default_wep_key_len;
1549 if (full_config && bss->default_wep_key_len) {
1550 cipher = bss->default_wep_key_len >= 13 ?
1551 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
1552 } else if (full_config && bss->ssid.wep.keys_set) {
1553 if (bss->ssid.wep.len[0] >= 13)
1554 cipher = WPA_CIPHER_WEP104;
1555 else
1556 cipher = WPA_CIPHER_WEP40;
1557 }
1558 #endif /* CONFIG_WEP */
1559 bss->wpa_group = cipher;
1560 bss->wpa_pairwise = cipher;
1561 bss->rsn_pairwise = cipher;
1562 if (full_config)
1563 bss->wpa_key_mgmt = WPA_KEY_MGMT_IEEE8021X_NO_WPA;
1564 #ifdef CONFIG_WEP
1565 } else if (bss->ssid.wep.keys_set) {
1566 int cipher = WPA_CIPHER_WEP40;
1567 if (bss->ssid.wep.len[0] >= 13)
1568 cipher = WPA_CIPHER_WEP104;
1569 bss->ssid.security_policy = SECURITY_STATIC_WEP;
1570 bss->wpa_group = cipher;
1571 bss->wpa_pairwise = cipher;
1572 bss->rsn_pairwise = cipher;
1573 if (full_config)
1574 bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1575 #endif /* CONFIG_WEP */
1576 } else if (bss->osen) {
1577 bss->ssid.security_policy = SECURITY_OSEN;
1578 bss->wpa_group = WPA_CIPHER_CCMP;
1579 bss->wpa_pairwise = 0;
1580 bss->rsn_pairwise = WPA_CIPHER_CCMP;
1581 } else {
1582 bss->ssid.security_policy = SECURITY_PLAINTEXT;
1583 if (full_config) {
1584 bss->wpa_group = WPA_CIPHER_NONE;
1585 bss->wpa_pairwise = WPA_CIPHER_NONE;
1586 bss->rsn_pairwise = WPA_CIPHER_NONE;
1587 bss->wpa_key_mgmt = WPA_KEY_MGMT_NONE;
1588 }
1589 }
1590 }
1591
1592
hostapd_sae_pw_id_in_use(struct hostapd_bss_config * conf)1593 int hostapd_sae_pw_id_in_use(struct hostapd_bss_config *conf)
1594 {
1595 int with_id = 0, without_id = 0;
1596 struct sae_password_entry *pw;
1597
1598 if (conf->ssid.wpa_passphrase)
1599 without_id = 1;
1600
1601 for (pw = conf->sae_passwords; pw; pw = pw->next) {
1602 if (pw->identifier)
1603 with_id = 1;
1604 else
1605 without_id = 1;
1606 if (with_id && without_id)
1607 break;
1608 }
1609
1610 if (with_id && !without_id)
1611 return 2;
1612 return with_id;
1613 }
1614
1615
hostapd_sae_pk_in_use(struct hostapd_bss_config * conf)1616 bool hostapd_sae_pk_in_use(struct hostapd_bss_config *conf)
1617 {
1618 #ifdef CONFIG_SAE_PK
1619 struct sae_password_entry *pw;
1620
1621 for (pw = conf->sae_passwords; pw; pw = pw->next) {
1622 if (pw->pk)
1623 return true;
1624 }
1625 #endif /* CONFIG_SAE_PK */
1626
1627 return false;
1628 }
1629
1630
1631 #ifdef CONFIG_SAE_PK
hostapd_sae_pk_exclusively(struct hostapd_bss_config * conf)1632 bool hostapd_sae_pk_exclusively(struct hostapd_bss_config *conf)
1633 {
1634 bool with_pk = false;
1635 struct sae_password_entry *pw;
1636
1637 if (conf->ssid.wpa_passphrase)
1638 return false;
1639
1640 for (pw = conf->sae_passwords; pw; pw = pw->next) {
1641 if (!pw->pk)
1642 return false;
1643 with_pk = true;
1644 }
1645
1646 return with_pk;
1647 }
1648 #endif /* CONFIG_SAE_PK */
1649
