Disconnect hostapd from building in base
[dragonfly.git] / contrib / hostapd / src / ap / ap_config.c
CommitLineData
4781064b
JM
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 "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"
18#include "wpa_auth.h"
19#include "sta_info.h"
20#include "ap_config.h"
21
22
23static void hostapd_config_free_vlan(struct hostapd_bss_config *bss)
24{
25 struct hostapd_vlan *vlan, *prev;
26
27 vlan = bss->vlan;
28 prev = NULL;
29 while (vlan) {
30 prev = vlan;
31 vlan = vlan->next;
32 os_free(prev);
33 }
34
35 bss->vlan = NULL;
36}
37
38
39void hostapd_config_defaults_bss(struct hostapd_bss_config *bss)
40{
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;
45
46 bss->auth_algs = WPA_AUTH_ALG_OPEN | WPA_AUTH_ALG_SHARED;
47
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;
53
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;
60
61 bss->max_num_sta = MAX_STA_COUNT;
62
63 bss->dtim_period = 2;
64
65 bss->radius_server_auth_port = 1812;
66 bss->ap_max_inactivity = AP_MAX_INACTIVITY;
67 bss->eapol_version = EAPOL_VERSION;
68
69 bss->max_listen_interval = 65535;
70
71 bss->pwd_group = 19; /* ECC: GF(p=256) */
72
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 */
83
84 /* Set to -1 as defaults depends on HT in setup */
85 bss->wmm_enabled = -1;
86
87#ifdef CONFIG_IEEE80211R
88 bss->ft_over_ds = 1;
89#endif /* CONFIG_IEEE80211R */
90
91 bss->radius_das_time_window = 300;
92
93 bss->sae_anti_clogging_threshold = 5;
94}
95
96
97struct hostapd_config * hostapd_config_defaults(void)
98{
99#define ecw2cw(ecw) ((1 << (ecw)) - 1)
100
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};
121
122#undef ecw2cw
123
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.");
129 os_free(conf);
130 os_free(bss);
131 return NULL;
132 }
133 conf->bss = os_calloc(1, sizeof(struct hostapd_bss_config *));
134 if (conf->bss == NULL) {
135 os_free(conf);
136 os_free(bss);
137 return NULL;
138 }
139 conf->bss[0] = bss;
140
141 bss->radius = os_zalloc(sizeof(*bss->radius));
142 if (bss->radius == NULL) {
143 os_free(conf->bss);
144 os_free(conf);
145 os_free(bss);
146 return NULL;
147 }
148
149 hostapd_config_defaults_bss(bss);
150
151 conf->num_bss = 1;
152
153 conf->beacon_int = 100;
154 conf->rts_threshold = -1; /* use driver default: 2347 */
155 conf->fragm_threshold = -1; /* user driver default: 2346 */
156 conf->send_probe_response = 1;
157
158 conf->wmm_ac_params[0] = ac_be;
159 conf->wmm_ac_params[1] = ac_bk;
160 conf->wmm_ac_params[2] = ac_vi;
161 conf->wmm_ac_params[3] = ac_vo;
162
163 conf->tx_queue[0] = txq_vo;
164 conf->tx_queue[1] = txq_vi;
165 conf->tx_queue[2] = txq_be;
166 conf->tx_queue[3] = txq_bk;
167
168 conf->ht_capab = HT_CAP_INFO_SMPS_DISABLED;
169
170 conf->ap_table_max_size = 255;
171 conf->ap_table_expiration_time = 60;
172
173#ifdef CONFIG_TESTING_OPTIONS
174 conf->ignore_probe_probability = 0.0d;
175 conf->ignore_auth_probability = 0.0d;
176 conf->ignore_assoc_probability = 0.0d;
177 conf->ignore_reassoc_probability = 0.0d;
178 conf->corrupt_gtk_rekey_mic_probability = 0.0d;
179#endif /* CONFIG_TESTING_OPTIONS */
180
181#ifdef CONFIG_ACS
182 conf->acs_num_scans = 5;
183#endif /* CONFIG_ACS */
184
185 return conf;
186}
187
188
189int hostapd_mac_comp(const void *a, const void *b)
190{
191 return os_memcmp(a, b, sizeof(macaddr));
192}
193
194
195int hostapd_mac_comp_empty(const void *a)
196{
197 macaddr empty = { 0 };
198 return os_memcmp(a, empty, sizeof(macaddr));
199}
200
201
202static int hostapd_config_read_wpa_psk(const char *fname,
203 struct hostapd_ssid *ssid)
204{
205 FILE *f;
206 char buf[128], *pos;
207 int line = 0, ret = 0, len, ok;
208 u8 addr[ETH_ALEN];
209 struct hostapd_wpa_psk *psk;
210
211 if (!fname)
212 return 0;
213
214 f = fopen(fname, "r");
215 if (!f) {
216 wpa_printf(MSG_ERROR, "WPA PSK file '%s' not found.", fname);
217 return -1;
218 }
219
220 while (fgets(buf, sizeof(buf), f)) {
221 line++;
222
223 if (buf[0] == '#')
224 continue;
225 pos = buf;
226 while (*pos != '\0') {
227 if (*pos == '\n') {
228 *pos = '\0';
229 break;
230 }
231 pos++;
232 }
233 if (buf[0] == '\0')
234 continue;
235
236 if (hwaddr_aton(buf, addr)) {
237 wpa_printf(MSG_ERROR, "Invalid MAC address '%s' on "
238 "line %d in '%s'", buf, line, fname);
239 ret = -1;
240 break;
241 }
242
243 psk = os_zalloc(sizeof(*psk));
244 if (psk == NULL) {
245 wpa_printf(MSG_ERROR, "WPA PSK allocation failed");
246 ret = -1;
247 break;
248 }
249 if (is_zero_ether_addr(addr))
250 psk->group = 1;
251 else
252 os_memcpy(psk->addr, addr, ETH_ALEN);
253
254 pos = buf + 17;
255 if (*pos == '\0') {
256 wpa_printf(MSG_ERROR, "No PSK on line %d in '%s'",
257 line, fname);
258 os_free(psk);
259 ret = -1;
260 break;
261 }
262 pos++;
263
264 ok = 0;
265 len = os_strlen(pos);
266 if (len == 64 && hexstr2bin(pos, psk->psk, PMK_LEN) == 0)
267 ok = 1;
268 else if (len >= 8 && len < 64) {
269 pbkdf2_sha1(pos, ssid->ssid, ssid->ssid_len,
270 4096, psk->psk, PMK_LEN);
271 ok = 1;
272 }
273 if (!ok) {
274 wpa_printf(MSG_ERROR, "Invalid PSK '%s' on line %d in "
275 "'%s'", pos, line, fname);
276 os_free(psk);
277 ret = -1;
278 break;
279 }
280
281 psk->next = ssid->wpa_psk;
282 ssid->wpa_psk = psk;
283 }
284
285 fclose(f);
286
287 return ret;
288}
289
290
291static int hostapd_derive_psk(struct hostapd_ssid *ssid)
292{
293 ssid->wpa_psk = os_zalloc(sizeof(struct hostapd_wpa_psk));
294 if (ssid->wpa_psk == NULL) {
295 wpa_printf(MSG_ERROR, "Unable to alloc space for PSK");
296 return -1;
297 }
298 wpa_hexdump_ascii(MSG_DEBUG, "SSID",
299 (u8 *) ssid->ssid, ssid->ssid_len);
300 wpa_hexdump_ascii_key(MSG_DEBUG, "PSK (ASCII passphrase)",
301 (u8 *) ssid->wpa_passphrase,
302 os_strlen(ssid->wpa_passphrase));
303 pbkdf2_sha1(ssid->wpa_passphrase,
304 ssid->ssid, ssid->ssid_len,
305 4096, ssid->wpa_psk->psk, PMK_LEN);
306 wpa_hexdump_key(MSG_DEBUG, "PSK (from passphrase)",
307 ssid->wpa_psk->psk, PMK_LEN);
308 return 0;
309}
310
311
312int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf)
313{
314 struct hostapd_ssid *ssid = &conf->ssid;
315
316 if (ssid->wpa_passphrase != NULL) {
317 if (ssid->wpa_psk != NULL) {
318 wpa_printf(MSG_DEBUG, "Using pre-configured WPA PSK "
319 "instead of passphrase");
320 } else {
321 wpa_printf(MSG_DEBUG, "Deriving WPA PSK based on "
322 "passphrase");
323 if (hostapd_derive_psk(ssid) < 0)
324 return -1;
325 }
326 ssid->wpa_psk->group = 1;
327 }
328
329 if (ssid->wpa_psk_file) {
330 if (hostapd_config_read_wpa_psk(ssid->wpa_psk_file,
331 &conf->ssid))
332 return -1;
333 }
334
335 return 0;
336}
337
338
339int hostapd_wep_key_cmp(struct hostapd_wep_keys *a, struct hostapd_wep_keys *b)
340{
341 int i;
342
343 if (a->idx != b->idx || a->default_len != b->default_len)
344 return 1;
345 for (i = 0; i < NUM_WEP_KEYS; i++)
346 if (a->len[i] != b->len[i] ||
347 os_memcmp(a->key[i], b->key[i], a->len[i]) != 0)
348 return 1;
349 return 0;
350}
351
352
353static void hostapd_config_free_radius(struct hostapd_radius_server *servers,
354 int num_servers)
355{
356 int i;
357
358 for (i = 0; i < num_servers; i++) {
359 os_free(servers[i].shared_secret);
360 }
361 os_free(servers);
362}
363
364
365struct hostapd_radius_attr *
366hostapd_config_get_radius_attr(struct hostapd_radius_attr *attr, u8 type)
367{
368 for (; attr; attr = attr->next) {
369 if (attr->type == type)
370 return attr;
371 }
372 return NULL;
373}
374
375
376static void hostapd_config_free_radius_attr(struct hostapd_radius_attr *attr)
377{
378 struct hostapd_radius_attr *prev;
379
380 while (attr) {
381 prev = attr;
382 attr = attr->next;
383 wpabuf_free(prev->val);
384 os_free(prev);
385 }
386}
387
388
389static void hostapd_config_free_eap_user(struct hostapd_eap_user *user)
390{
391 os_free(user->identity);
392 os_free(user->password);
393 os_free(user);
394}
395
396
397static void hostapd_config_free_wep(struct hostapd_wep_keys *keys)
398{
399 int i;
400 for (i = 0; i < NUM_WEP_KEYS; i++) {
401 os_free(keys->key[i]);
402 keys->key[i] = NULL;
403 }
404}
405
406
407void hostapd_config_free_bss(struct hostapd_bss_config *conf)
408{
409 struct hostapd_wpa_psk *psk, *prev;
410 struct hostapd_eap_user *user, *prev_user;
411
412 if (conf == NULL)
413 return;
414
415 psk = conf->ssid.wpa_psk;
416 while (psk) {
417 prev = psk;
418 psk = psk->next;
419 os_free(prev);
420 }
421
422 os_free(conf->ssid.wpa_passphrase);
423 os_free(conf->ssid.wpa_psk_file);
424 hostapd_config_free_wep(&conf->ssid.wep);
425#ifdef CONFIG_FULL_DYNAMIC_VLAN
426 os_free(conf->ssid.vlan_tagged_interface);
427#endif /* CONFIG_FULL_DYNAMIC_VLAN */
428
429 user = conf->eap_user;
430 while (user) {
431 prev_user = user;
432 user = user->next;
433 hostapd_config_free_eap_user(prev_user);
434 }
435 os_free(conf->eap_user_sqlite);
436
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);
441 if (conf->radius) {
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);
446 }
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);
467
468#ifdef CONFIG_IEEE80211R
469 {
470 struct ft_remote_r0kh *r0kh, *r0kh_prev;
471 struct ft_remote_r1kh *r1kh, *r1kh_prev;
472
473 r0kh = conf->r0kh_list;
474 conf->r0kh_list = NULL;
475 while (r0kh) {
476 r0kh_prev = r0kh;
477 r0kh = r0kh->next;
478 os_free(r0kh_prev);
479 }
480
481 r1kh = conf->r1kh_list;
482 conf->r1kh_list = NULL;
483 while (r1kh) {
484 r1kh_prev = r1kh;
485 r1kh = r1kh->next;
486 os_free(r1kh_prev);
487 }
488 }
489#endif /* CONFIG_IEEE80211R */
490
491#ifdef CONFIG_WPS
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);
507 os_free(conf->upc);
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 */
512
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);
519
520#ifdef CONFIG_RADIUS_TEST
521 os_free(conf->dump_msk_file);
522#endif /* CONFIG_RADIUS_TEST */
523
524#ifdef CONFIG_HS20
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 */
530
531 wpabuf_free(conf->vendor_elements);
532
533 os_free(conf->sae_groups);
534
535 os_free(conf->server_id);
536
537 os_free(conf);
538}
539
540
541/**
542 * hostapd_config_free - Free hostapd configuration
543 * @conf: Configuration data from hostapd_config_read().
544 */
545void hostapd_config_free(struct hostapd_config *conf)
546{
547 size_t i;
548
549 if (conf == NULL)
550 return;
551
552 for (i = 0; i < conf->num_bss; i++)
553 hostapd_config_free_bss(conf->bss[i]);
554 os_free(conf->bss);
555 os_free(conf->supported_rates);
556 os_free(conf->basic_rates);
557
558 os_free(conf);
559}
560
561
562/**
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.
569 *
570 * Perform a binary search for given MAC address from a pre-sorted list.
571 */
572int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
573 const u8 *addr, int *vlan_id)
574{
575 int start, end, middle, res;
576
577 start = 0;
578 end = num_entries - 1;
579
580 while (start <= end) {
581 middle = (start + end) / 2;
582 res = os_memcmp(list[middle].addr, addr, ETH_ALEN);
583 if (res == 0) {
584 if (vlan_id)
585 *vlan_id = list[middle].vlan_id;
586 return 1;
587 }
588 if (res < 0)
589 start = middle + 1;
590 else
591 end = middle - 1;
592 }
593
594 return 0;
595}
596
597
598int hostapd_rate_found(int *list, int rate)
599{
600 int i;
601
602 if (list == NULL)
603 return 0;
604
605 for (i = 0; list[i] >= 0; i++)
606 if (list[i] == rate)
607 return 1;
608
609 return 0;
610}
611
612
613int hostapd_vlan_id_valid(struct hostapd_vlan *vlan, int vlan_id)
614{
615 struct hostapd_vlan *v = vlan;
616 while (v) {
617 if (v->vlan_id == vlan_id || v->vlan_id == VLAN_ID_WILDCARD)
618 return 1;
619 v = v->next;
620 }
621 return 0;
622}
623
624
625const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan, int vlan_id)
626{
627 struct hostapd_vlan *v = vlan;
628 while (v) {
629 if (v->vlan_id == vlan_id)
630 return v->ifname;
631 v = v->next;
632 }
633 return NULL;
634}
635
636
637const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
638 const u8 *addr, const u8 *p2p_dev_addr,
639 const u8 *prev_psk)
640{
641 struct hostapd_wpa_psk *psk;
642 int next_ok = prev_psk == NULL;
643
644 if (p2p_dev_addr) {
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 */
650 } else {
651 wpa_printf(MSG_DEBUG, "Searching a PSK for " MACSTR
652 " prev_psk=%p",
653 MAC2STR(addr), prev_psk);
654 }
655
656 for (psk = conf->ssid.wpa_psk; psk != NULL; psk = psk->next) {
657 if (next_ok &&
658 (psk->group ||
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) ==
662 0)))
663 return psk->psk;
664
665 if (psk->psk == prev_psk)
666 next_ok = 1;
667 }
668
669 return NULL;
670}
671
672
673static int hostapd_config_check_bss(struct hostapd_bss_config *bss,
674 struct hostapd_config *conf,
675 int full_config)
676{
677 if (full_config && bss->ieee802_1x && !bss->eap_server &&
678 !bss->radius->auth_servers) {
679 wpa_printf(MSG_ERROR, "Invalid IEEE 802.1X configuration (no "
680 "EAP authenticator configured).");
681 return -1;
682 }
683
684 if (bss->wpa) {
685 int wep, i;
686
687 wep = bss->default_wep_key_len > 0 ||
688 bss->individual_wep_key_len > 0;
689 for (i = 0; i < NUM_WEP_KEYS; i++) {
690 if (bss->ssid.wep.keys_set) {
691 wep = 1;
692 break;
693 }
694 }
695
696 if (wep) {
697 wpa_printf(MSG_ERROR, "WEP configuration in a WPA network is not supported");
698 return -1;
699 }
700 }
701
702 if (full_config && bss->wpa &&
703 bss->wpa_psk_radius != PSK_RADIUS_IGNORED &&
704 bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH) {
705 wpa_printf(MSG_ERROR, "WPA-PSK using RADIUS enabled, but no "
706 "RADIUS checking (macaddr_acl=2) enabled.");
707 return -1;
708 }
709
710 if (full_config && bss->wpa && (bss->wpa_key_mgmt & WPA_KEY_MGMT_PSK) &&
711 bss->ssid.wpa_psk == NULL && bss->ssid.wpa_passphrase == NULL &&
712 bss->ssid.wpa_psk_file == NULL &&
713 (bss->wpa_psk_radius != PSK_RADIUS_REQUIRED ||
714 bss->macaddr_acl != USE_EXTERNAL_RADIUS_AUTH)) {
715 wpa_printf(MSG_ERROR, "WPA-PSK enabled, but PSK or passphrase "
716 "is not configured.");
717 return -1;
718 }
719
720 if (full_config && hostapd_mac_comp_empty(bss->bssid) != 0) {
721 size_t i;
722
723 for (i = 0; i < conf->num_bss; i++) {
724 if (conf->bss[i] != bss &&
725 (hostapd_mac_comp(conf->bss[i]->bssid,
726 bss->bssid) == 0)) {
727 wpa_printf(MSG_ERROR, "Duplicate BSSID " MACSTR
728 " on interface '%s' and '%s'.",
729 MAC2STR(bss->bssid),
730 conf->bss[i]->iface, bss->iface);
731 return -1;
732 }
733 }
734 }
735
736#ifdef CONFIG_IEEE80211R
737 if (full_config && wpa_key_mgmt_ft(bss->wpa_key_mgmt) &&
738 (bss->nas_identifier == NULL ||
739 os_strlen(bss->nas_identifier) < 1 ||
740 os_strlen(bss->nas_identifier) > FT_R0KH_ID_MAX_LEN)) {
741 wpa_printf(MSG_ERROR, "FT (IEEE 802.11r) requires "
742 "nas_identifier to be configured as a 1..48 octet "
743 "string");
744 return -1;
745 }
746#endif /* CONFIG_IEEE80211R */
747
748#ifdef CONFIG_IEEE80211N
749 if (full_config && conf->ieee80211n &&
750 conf->hw_mode == HOSTAPD_MODE_IEEE80211B) {
751 bss->disable_11n = 1;
752 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) in 11b mode is not "
753 "allowed, disabling HT capabilites");
754 }
755
756 if (full_config && conf->ieee80211n &&
757 bss->ssid.security_policy == SECURITY_STATIC_WEP) {
758 bss->disable_11n = 1;
759 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WEP is not "
760 "allowed, disabling HT capabilities");
761 }
762
763 if (full_config && conf->ieee80211n && bss->wpa &&
764 !(bss->wpa_pairwise & WPA_CIPHER_CCMP) &&
765 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
766 WPA_CIPHER_CCMP_256 | WPA_CIPHER_GCMP_256)))
767 {
768 bss->disable_11n = 1;
769 wpa_printf(MSG_ERROR, "HT (IEEE 802.11n) with WPA/WPA2 "
770 "requires CCMP/GCMP to be enabled, disabling HT "
771 "capabilities");
772 }
773#endif /* CONFIG_IEEE80211N */
774
775#ifdef CONFIG_WPS2
776 if (full_config && bss->wps_state && bss->ignore_broadcast_ssid) {
777 wpa_printf(MSG_INFO, "WPS: ignore_broadcast_ssid "
778 "configuration forced WPS to be disabled");
779 bss->wps_state = 0;
780 }
781
782 if (full_config && bss->wps_state &&
783 bss->ssid.wep.keys_set && bss->wpa == 0) {
784 wpa_printf(MSG_INFO, "WPS: WEP configuration forced WPS to be "
785 "disabled");
786 bss->wps_state = 0;
787 }
788
789 if (full_config && bss->wps_state && bss->wpa &&
790 (!(bss->wpa & 2) ||
791 !(bss->rsn_pairwise & WPA_CIPHER_CCMP))) {
792 wpa_printf(MSG_INFO, "WPS: WPA/TKIP configuration without "
793 "WPA2/CCMP forced WPS to be disabled");
794 bss->wps_state = 0;
795 }
796#endif /* CONFIG_WPS2 */
797
798#ifdef CONFIG_HS20
799 if (full_config && bss->hs20 &&
800 (!(bss->wpa & 2) ||
801 !(bss->rsn_pairwise & (WPA_CIPHER_CCMP | WPA_CIPHER_GCMP |
802 WPA_CIPHER_CCMP_256 |
803 WPA_CIPHER_GCMP_256)))) {
804 wpa_printf(MSG_ERROR, "HS 2.0: WPA2-Enterprise/CCMP "
805 "configuration is required for Hotspot 2.0 "
806 "functionality");
807 return -1;
808 }
809#endif /* CONFIG_HS20 */
810
811 return 0;
812}
813
814
815int hostapd_config_check(struct hostapd_config *conf, int full_config)
816{
817 size_t i;
818
819 if (full_config && conf->ieee80211d &&
820 (!conf->country[0] || !conf->country[1])) {
821 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11d without "
822 "setting the country_code");
823 return -1;
824 }
825
826 if (full_config && conf->ieee80211h && !conf->ieee80211d) {
827 wpa_printf(MSG_ERROR, "Cannot enable IEEE 802.11h without "
828 "IEEE 802.11d enabled");
829 return -1;
830 }
831
832 for (i = 0; i < conf->num_bss; i++) {
833 if (hostapd_config_check_bss(conf->bss[i], conf, full_config))
834 return -1;
835 }
836
837 return 0;
838}
839
840
841void hostapd_set_security_params(struct hostapd_bss_config *bss)
842{
843 if (bss->individual_wep_key_len == 0) {
844 /* individual keys are not use; can use key idx0 for
845 * broadcast keys */
846 bss->broadcast_key_idx_min = 0;
847 }
848
849 if ((bss->wpa & 2) && bss->rsn_pairwise == 0)
850 bss->rsn_pairwise = bss->wpa_pairwise;
851 bss->wpa_group = wpa_select_ap_group_cipher(bss->wpa, bss->wpa_pairwise,
852 bss->rsn_pairwise);
853
854 bss->radius->auth_server = bss->radius->auth_servers;
855 bss->radius->acct_server = bss->radius->acct_servers;
856
857 if (bss->wpa && bss->ieee802_1x) {
858 bss->ssid.security_policy = SECURITY_WPA;
859 } else if (bss->wpa) {
860 bss->ssid.security_policy = SECURITY_WPA_PSK;
861 } else if (bss->ieee802_1x) {
862 int cipher = WPA_CIPHER_NONE;
863 bss->ssid.security_policy = SECURITY_IEEE_802_1X;
864 bss->ssid.wep.default_len = bss->default_wep_key_len;
865 if (bss->default_wep_key_len)
866 cipher = bss->default_wep_key_len >= 13 ?
867 WPA_CIPHER_WEP104 : WPA_CIPHER_WEP40;
868 bss->wpa_group = cipher;
869 bss->wpa_pairwise = cipher;
870 bss->rsn_pairwise = cipher;
871 } else if (bss->ssid.wep.keys_set) {
872 int cipher = WPA_CIPHER_WEP40;
873 if (bss->ssid.wep.len[0] >= 13)
874 cipher = WPA_CIPHER_WEP104;
875 bss->ssid.security_policy = SECURITY_STATIC_WEP;
876 bss->wpa_group = cipher;
877 bss->wpa_pairwise = cipher;
878 bss->rsn_pairwise = cipher;
879 } else {
880 bss->ssid.security_policy = SECURITY_PLAINTEXT;
881 bss->wpa_group = WPA_CIPHER_NONE;
882 bss->wpa_pairwise = WPA_CIPHER_NONE;
883 bss->rsn_pairwise = WPA_CIPHER_NONE;
884 }
885}