1 /*
2 * hostapd / IEEE 802.1X-2004 Authenticator
3 * Copyright (c) 2002-2012, 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 "utils/eloop.h"
13 #include "crypto/md5.h"
14 #include "crypto/crypto.h"
15 #include "crypto/random.h"
16 #include "common/ieee802_11_defs.h"
17 #include "radius/radius.h"
18 #include "radius/radius_client.h"
19 #include "eap_server/eap.h"
20 #include "eap_common/eap_wsc_common.h"
21 #include "eapol_auth/eapol_auth_sm.h"
22 #include "eapol_auth/eapol_auth_sm_i.h"
23 #include "p2p/p2p.h"
24 #include "hostapd.h"
25 #include "accounting.h"
26 #include "sta_info.h"
27 #include "wpa_auth.h"
28 #include "preauth_auth.h"
29 #include "pmksa_cache_auth.h"
30 #include "ap_config.h"
31 #include "ap_drv_ops.h"
32 #include "wps_hostapd.h"
33 #include "hs20.h"
34 /* FIX: Not really a good thing to require ieee802_11.h here.. (FILS) */
35 #include "ieee802_11.h"
36 #include "ieee802_1x.h"
37
38
39 #ifdef CONFIG_HS20
40 static void ieee802_1x_wnm_notif_send(void *eloop_ctx, void *timeout_ctx);
41 #endif /* CONFIG_HS20 */
42 static void ieee802_1x_finished(struct hostapd_data *hapd,
43 struct sta_info *sta, int success,
44 int remediation);
45
46
ieee802_1x_send(struct hostapd_data * hapd,struct sta_info * sta,u8 type,const u8 * data,size_t datalen)47 static void ieee802_1x_send(struct hostapd_data *hapd, struct sta_info *sta,
48 u8 type, const u8 *data, size_t datalen)
49 {
50 u8 *buf;
51 struct ieee802_1x_hdr *xhdr;
52 size_t len;
53 int encrypt = 0;
54
55 len = sizeof(*xhdr) + datalen;
56 buf = os_zalloc(len);
57 if (buf == NULL) {
58 wpa_printf(MSG_ERROR, "malloc() failed for "
59 "ieee802_1x_send(len=%lu)",
60 (unsigned long) len);
61 return;
62 }
63
64 xhdr = (struct ieee802_1x_hdr *) buf;
65 xhdr->version = hapd->conf->eapol_version;
66 xhdr->type = type;
67 xhdr->length = host_to_be16(datalen);
68
69 if (datalen > 0 && data != NULL)
70 os_memcpy(xhdr + 1, data, datalen);
71
72 if (wpa_auth_pairwise_set(sta->wpa_sm))
73 encrypt = 1;
74 #ifdef CONFIG_TESTING_OPTIONS
75 if (hapd->ext_eapol_frame_io) {
76 size_t hex_len = 2 * len + 1;
77 char *hex = os_malloc(hex_len);
78
79 if (hex) {
80 wpa_snprintf_hex(hex, hex_len, buf, len);
81 wpa_msg(hapd->msg_ctx, MSG_INFO,
82 "EAPOL-TX " MACSTR " %s",
83 MAC2STR(sta->addr), hex);
84 os_free(hex);
85 }
86 } else
87 #endif /* CONFIG_TESTING_OPTIONS */
88 if (sta->flags & WLAN_STA_PREAUTH) {
89 rsn_preauth_send(hapd, sta, buf, len);
90 } else {
91 hostapd_drv_hapd_send_eapol(
92 hapd, sta->addr, buf, len,
93 encrypt, hostapd_sta_flags_to_drv(sta->flags));
94 }
95
96 os_free(buf);
97 }
98
99
ieee802_1x_set_sta_authorized(struct hostapd_data * hapd,struct sta_info * sta,int authorized)100 void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
101 struct sta_info *sta, int authorized)
102 {
103 int res;
104
105 if (sta->flags & WLAN_STA_PREAUTH)
106 return;
107
108 if (authorized) {
109 ap_sta_set_authorized(hapd, sta, 1);
110 res = hostapd_set_authorized(hapd, sta, 1);
111 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
112 HOSTAPD_LEVEL_DEBUG, "authorizing port");
113 } else {
114 ap_sta_set_authorized(hapd, sta, 0);
115 res = hostapd_set_authorized(hapd, sta, 0);
116 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
117 HOSTAPD_LEVEL_DEBUG, "unauthorizing port");
118 }
119
120 if (res && errno != ENOENT) {
121 wpa_printf(MSG_DEBUG, "Could not set station " MACSTR
122 " flags for kernel driver (errno=%d).",
123 MAC2STR(sta->addr), errno);
124 }
125
126 if (authorized) {
127 os_get_reltime(&sta->connected_time);
128 accounting_sta_start(hapd, sta);
129 }
130 }
131
132
133 #ifndef CONFIG_FIPS
134 #ifndef CONFIG_NO_RC4
135
ieee802_1x_tx_key_one(struct hostapd_data * hapd,struct sta_info * sta,int idx,int broadcast,u8 * key_data,size_t key_len)136 static void ieee802_1x_tx_key_one(struct hostapd_data *hapd,
137 struct sta_info *sta,
138 int idx, int broadcast,
139 u8 *key_data, size_t key_len)
140 {
141 u8 *buf, *ekey;
142 struct ieee802_1x_hdr *hdr;
143 struct ieee802_1x_eapol_key *key;
144 size_t len, ekey_len;
145 struct eapol_state_machine *sm = sta->eapol_sm;
146
147 if (sm == NULL)
148 return;
149
150 len = sizeof(*key) + key_len;
151 buf = os_zalloc(sizeof(*hdr) + len);
152 if (buf == NULL)
153 return;
154
155 hdr = (struct ieee802_1x_hdr *) buf;
156 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
157 key->type = EAPOL_KEY_TYPE_RC4;
158 WPA_PUT_BE16(key->key_length, key_len);
159 wpa_get_ntp_timestamp(key->replay_counter);
160
161 if (random_get_bytes(key->key_iv, sizeof(key->key_iv))) {
162 wpa_printf(MSG_ERROR, "Could not get random numbers");
163 os_free(buf);
164 return;
165 }
166
167 key->key_index = idx | (broadcast ? 0 : BIT(7));
168 if (hapd->conf->eapol_key_index_workaround) {
169 /* According to some information, WinXP Supplicant seems to
170 * interpret bit7 as an indication whether the key is to be
171 * activated, so make it possible to enable workaround that
172 * sets this bit for all keys. */
173 key->key_index |= BIT(7);
174 }
175
176 /* Key is encrypted using "Key-IV + MSK[0..31]" as the RC4-key and
177 * MSK[32..63] is used to sign the message. */
178 if (sm->eap_if->eapKeyData == NULL || sm->eap_if->eapKeyDataLen < 64) {
179 wpa_printf(MSG_ERROR, "No eapKeyData available for encrypting "
180 "and signing EAPOL-Key");
181 os_free(buf);
182 return;
183 }
184 os_memcpy((u8 *) (key + 1), key_data, key_len);
185 ekey_len = sizeof(key->key_iv) + 32;
186 ekey = os_malloc(ekey_len);
187 if (ekey == NULL) {
188 wpa_printf(MSG_ERROR, "Could not encrypt key");
189 os_free(buf);
190 return;
191 }
192 os_memcpy(ekey, key->key_iv, sizeof(key->key_iv));
193 os_memcpy(ekey + sizeof(key->key_iv), sm->eap_if->eapKeyData, 32);
194 rc4_skip(ekey, ekey_len, 0, (u8 *) (key + 1), key_len);
195 os_free(ekey);
196
197 /* This header is needed here for HMAC-MD5, but it will be regenerated
198 * in ieee802_1x_send() */
199 hdr->version = hapd->conf->eapol_version;
200 hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
201 hdr->length = host_to_be16(len);
202 hmac_md5(sm->eap_if->eapKeyData + 32, 32, buf, sizeof(*hdr) + len,
203 key->key_signature);
204
205 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key to " MACSTR
206 " (%s index=%d)", MAC2STR(sm->addr),
207 broadcast ? "broadcast" : "unicast", idx);
208 ieee802_1x_send(hapd, sta, IEEE802_1X_TYPE_EAPOL_KEY, (u8 *) key, len);
209 if (sta->eapol_sm)
210 sta->eapol_sm->dot1xAuthEapolFramesTx++;
211 os_free(buf);
212 }
213
214
ieee802_1x_tx_key(struct hostapd_data * hapd,struct sta_info * sta)215 static void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta)
216 {
217 struct eapol_authenticator *eapol = hapd->eapol_auth;
218 struct eapol_state_machine *sm = sta->eapol_sm;
219
220 if (sm == NULL || !sm->eap_if->eapKeyData)
221 return;
222
223 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key(s) to " MACSTR,
224 MAC2STR(sta->addr));
225
226 #ifndef CONFIG_NO_VLAN
227 if (sta->vlan_id > 0) {
228 wpa_printf(MSG_ERROR, "Using WEP with vlans is not supported.");
229 return;
230 }
231 #endif /* CONFIG_NO_VLAN */
232
233 if (eapol->default_wep_key) {
234 ieee802_1x_tx_key_one(hapd, sta, eapol->default_wep_key_idx, 1,
235 eapol->default_wep_key,
236 hapd->conf->default_wep_key_len);
237 }
238
239 if (hapd->conf->individual_wep_key_len > 0) {
240 u8 *ikey;
241 ikey = os_malloc(hapd->conf->individual_wep_key_len);
242 if (ikey == NULL ||
243 random_get_bytes(ikey, hapd->conf->individual_wep_key_len))
244 {
245 wpa_printf(MSG_ERROR, "Could not generate random "
246 "individual WEP key.");
247 os_free(ikey);
248 return;
249 }
250
251 wpa_hexdump_key(MSG_DEBUG, "Individual WEP key",
252 ikey, hapd->conf->individual_wep_key_len);
253
254 ieee802_1x_tx_key_one(hapd, sta, 0, 0, ikey,
255 hapd->conf->individual_wep_key_len);
256
257 /* TODO: set encryption in TX callback, i.e., only after STA
258 * has ACKed EAPOL-Key frame */
259 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
260 sta->addr, 0, 1, NULL, 0, ikey,
261 hapd->conf->individual_wep_key_len)) {
262 wpa_printf(MSG_ERROR, "Could not set individual WEP "
263 "encryption.");
264 }
265
266 os_free(ikey);
267 }
268 }
269
270 #endif /* CONFIG_NO_RC4 */
271 #endif /* CONFIG_FIPS */
272
273
radius_mode_txt(struct hostapd_data * hapd)274 const char *radius_mode_txt(struct hostapd_data *hapd)
275 {
276 switch (hapd->iface->conf->hw_mode) {
277 case HOSTAPD_MODE_IEEE80211AD:
278 return "802.11ad";
279 case HOSTAPD_MODE_IEEE80211A:
280 return "802.11a";
281 case HOSTAPD_MODE_IEEE80211G:
282 return "802.11g";
283 case HOSTAPD_MODE_IEEE80211B:
284 default:
285 return "802.11b";
286 }
287 }
288
289
radius_sta_rate(struct hostapd_data * hapd,struct sta_info * sta)290 int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta)
291 {
292 int i;
293 u8 rate = 0;
294
295 for (i = 0; i < sta->supported_rates_len; i++)
296 if ((sta->supported_rates[i] & 0x7f) > rate)
297 rate = sta->supported_rates[i] & 0x7f;
298
299 return rate;
300 }
301
302
303 #ifndef CONFIG_NO_RADIUS
ieee802_1x_learn_identity(struct hostapd_data * hapd,struct eapol_state_machine * sm,const u8 * eap,size_t len)304 static void ieee802_1x_learn_identity(struct hostapd_data *hapd,
305 struct eapol_state_machine *sm,
306 const u8 *eap, size_t len)
307 {
308 const u8 *identity;
309 size_t identity_len;
310 const struct eap_hdr *hdr = (const struct eap_hdr *) eap;
311
312 if (len <= sizeof(struct eap_hdr) ||
313 (hdr->code == EAP_CODE_RESPONSE &&
314 eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY) ||
315 (hdr->code == EAP_CODE_INITIATE &&
316 eap[sizeof(struct eap_hdr)] != EAP_ERP_TYPE_REAUTH) ||
317 (hdr->code != EAP_CODE_RESPONSE &&
318 hdr->code != EAP_CODE_INITIATE))
319 return;
320
321 eap_erp_update_identity(sm->eap, eap, len);
322 identity = eap_get_identity(sm->eap, &identity_len);
323 if (identity == NULL)
324 return;
325
326 /* Save station identity for future RADIUS packets */
327 os_free(sm->identity);
328 sm->identity = (u8 *) dup_binstr(identity, identity_len);
329 if (sm->identity == NULL) {
330 sm->identity_len = 0;
331 return;
332 }
333
334 sm->identity_len = identity_len;
335 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
336 HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity);
337 sm->dot1xAuthEapolRespIdFramesRx++;
338 }
339
340
add_common_radius_sta_attr_rsn(struct hostapd_data * hapd,struct hostapd_radius_attr * req_attr,struct sta_info * sta,struct radius_msg * msg)341 static int add_common_radius_sta_attr_rsn(struct hostapd_data *hapd,
342 struct hostapd_radius_attr *req_attr,
343 struct sta_info *sta,
344 struct radius_msg *msg)
345 {
346 u32 suite;
347 int ver, val;
348
349 ver = wpa_auth_sta_wpa_version(sta->wpa_sm);
350 val = wpa_auth_get_pairwise(sta->wpa_sm);
351 suite = wpa_cipher_to_suite(ver, val);
352 if (val != -1 &&
353 !hostapd_config_get_radius_attr(req_attr,
354 RADIUS_ATTR_WLAN_PAIRWISE_CIPHER) &&
355 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_PAIRWISE_CIPHER,
356 suite)) {
357 wpa_printf(MSG_ERROR, "Could not add WLAN-Pairwise-Cipher");
358 return -1;
359 }
360
361 suite = wpa_cipher_to_suite(((hapd->conf->wpa & 0x2) ||
362 hapd->conf->osen) ?
363 WPA_PROTO_RSN : WPA_PROTO_WPA,
364 hapd->conf->wpa_group);
365 if (!hostapd_config_get_radius_attr(req_attr,
366 RADIUS_ATTR_WLAN_GROUP_CIPHER) &&
367 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_GROUP_CIPHER,
368 suite)) {
369 wpa_printf(MSG_ERROR, "Could not add WLAN-Group-Cipher");
370 return -1;
371 }
372
373 val = wpa_auth_sta_key_mgmt(sta->wpa_sm);
374 suite = wpa_akm_to_suite(val);
375 if (val != -1 &&
376 !hostapd_config_get_radius_attr(req_attr,
377 RADIUS_ATTR_WLAN_AKM_SUITE) &&
378 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_AKM_SUITE,
379 suite)) {
380 wpa_printf(MSG_ERROR, "Could not add WLAN-AKM-Suite");
381 return -1;
382 }
383
384 #ifdef CONFIG_IEEE80211W
385 if (hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
386 suite = wpa_cipher_to_suite(WPA_PROTO_RSN,
387 hapd->conf->group_mgmt_cipher);
388 if (!hostapd_config_get_radius_attr(
389 req_attr, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER) &&
390 !radius_msg_add_attr_int32(
391 msg, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER, suite)) {
392 wpa_printf(MSG_ERROR,
393 "Could not add WLAN-Group-Mgmt-Cipher");
394 return -1;
395 }
396 }
397 #endif /* CONFIG_IEEE80211W */
398
399 return 0;
400 }
401
402
add_common_radius_sta_attr(struct hostapd_data * hapd,struct hostapd_radius_attr * req_attr,struct sta_info * sta,struct radius_msg * msg)403 static int add_common_radius_sta_attr(struct hostapd_data *hapd,
404 struct hostapd_radius_attr *req_attr,
405 struct sta_info *sta,
406 struct radius_msg *msg)
407 {
408 char buf[128];
409
410 if (!hostapd_config_get_radius_attr(req_attr,
411 RADIUS_ATTR_SERVICE_TYPE) &&
412 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_SERVICE_TYPE,
413 RADIUS_SERVICE_TYPE_FRAMED)) {
414 wpa_printf(MSG_ERROR, "Could not add Service-Type");
415 return -1;
416 }
417
418 if (!hostapd_config_get_radius_attr(req_attr,
419 RADIUS_ATTR_NAS_PORT) &&
420 sta->aid > 0 &&
421 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
422 wpa_printf(MSG_ERROR, "Could not add NAS-Port");
423 return -1;
424 }
425
426 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
427 MAC2STR(sta->addr));
428 buf[sizeof(buf) - 1] = '\0';
429 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
430 (u8 *) buf, os_strlen(buf))) {
431 wpa_printf(MSG_ERROR, "Could not add Calling-Station-Id");
432 return -1;
433 }
434
435 if (sta->flags & WLAN_STA_PREAUTH) {
436 os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
437 sizeof(buf));
438 } else {
439 os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
440 radius_sta_rate(hapd, sta) / 2,
441 (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
442 radius_mode_txt(hapd));
443 buf[sizeof(buf) - 1] = '\0';
444 }
445 if (!hostapd_config_get_radius_attr(req_attr,
446 RADIUS_ATTR_CONNECT_INFO) &&
447 !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
448 (u8 *) buf, os_strlen(buf))) {
449 wpa_printf(MSG_ERROR, "Could not add Connect-Info");
450 return -1;
451 }
452
453 if (sta->acct_session_id) {
454 os_snprintf(buf, sizeof(buf), "%016llX",
455 (unsigned long long) sta->acct_session_id);
456 if (!radius_msg_add_attr(msg, RADIUS_ATTR_ACCT_SESSION_ID,
457 (u8 *) buf, os_strlen(buf))) {
458 wpa_printf(MSG_ERROR, "Could not add Acct-Session-Id");
459 return -1;
460 }
461 }
462
463 if ((hapd->conf->wpa & 2) &&
464 !hapd->conf->disable_pmksa_caching &&
465 sta->eapol_sm && sta->eapol_sm->acct_multi_session_id) {
466 os_snprintf(buf, sizeof(buf), "%016llX",
467 (unsigned long long)
468 sta->eapol_sm->acct_multi_session_id);
469 if (!radius_msg_add_attr(
470 msg, RADIUS_ATTR_ACCT_MULTI_SESSION_ID,
471 (u8 *) buf, os_strlen(buf))) {
472 wpa_printf(MSG_INFO,
473 "Could not add Acct-Multi-Session-Id");
474 return -1;
475 }
476 }
477
478 #ifdef CONFIG_IEEE80211R_AP
479 if (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) &&
480 sta->wpa_sm &&
481 (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm)) ||
482 sta->auth_alg == WLAN_AUTH_FT) &&
483 !hostapd_config_get_radius_attr(req_attr,
484 RADIUS_ATTR_MOBILITY_DOMAIN_ID) &&
485 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_MOBILITY_DOMAIN_ID,
486 WPA_GET_BE16(
487 hapd->conf->mobility_domain))) {
488 wpa_printf(MSG_ERROR, "Could not add Mobility-Domain-Id");
489 return -1;
490 }
491 #endif /* CONFIG_IEEE80211R_AP */
492
493 if ((hapd->conf->wpa || hapd->conf->osen) && sta->wpa_sm &&
494 add_common_radius_sta_attr_rsn(hapd, req_attr, sta, msg) < 0)
495 return -1;
496
497 return 0;
498 }
499
500
add_common_radius_attr(struct hostapd_data * hapd,struct hostapd_radius_attr * req_attr,struct sta_info * sta,struct radius_msg * msg)501 int add_common_radius_attr(struct hostapd_data *hapd,
502 struct hostapd_radius_attr *req_attr,
503 struct sta_info *sta,
504 struct radius_msg *msg)
505 {
506 char buf[128];
507 struct hostapd_radius_attr *attr;
508 int len;
509
510 if (!hostapd_config_get_radius_attr(req_attr,
511 RADIUS_ATTR_NAS_IP_ADDRESS) &&
512 hapd->conf->own_ip_addr.af == AF_INET &&
513 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
514 (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
515 wpa_printf(MSG_ERROR, "Could not add NAS-IP-Address");
516 return -1;
517 }
518
519 #ifdef CONFIG_IPV6
520 if (!hostapd_config_get_radius_attr(req_attr,
521 RADIUS_ATTR_NAS_IPV6_ADDRESS) &&
522 hapd->conf->own_ip_addr.af == AF_INET6 &&
523 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
524 (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
525 wpa_printf(MSG_ERROR, "Could not add NAS-IPv6-Address");
526 return -1;
527 }
528 #endif /* CONFIG_IPV6 */
529
530 if (!hostapd_config_get_radius_attr(req_attr,
531 RADIUS_ATTR_NAS_IDENTIFIER) &&
532 hapd->conf->nas_identifier &&
533 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
534 (u8 *) hapd->conf->nas_identifier,
535 os_strlen(hapd->conf->nas_identifier))) {
536 wpa_printf(MSG_ERROR, "Could not add NAS-Identifier");
537 return -1;
538 }
539
540 len = os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":",
541 MAC2STR(hapd->own_addr));
542 os_memcpy(&buf[len], hapd->conf->ssid.ssid,
543 hapd->conf->ssid.ssid_len);
544 len += hapd->conf->ssid.ssid_len;
545 if (!hostapd_config_get_radius_attr(req_attr,
546 RADIUS_ATTR_CALLED_STATION_ID) &&
547 !radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
548 (u8 *) buf, len)) {
549 wpa_printf(MSG_ERROR, "Could not add Called-Station-Id");
550 return -1;
551 }
552
553 if (!hostapd_config_get_radius_attr(req_attr,
554 RADIUS_ATTR_NAS_PORT_TYPE) &&
555 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
556 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
557 wpa_printf(MSG_ERROR, "Could not add NAS-Port-Type");
558 return -1;
559 }
560
561 #ifdef CONFIG_INTERWORKING
562 if (hapd->conf->interworking &&
563 !is_zero_ether_addr(hapd->conf->hessid)) {
564 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
565 MAC2STR(hapd->conf->hessid));
566 buf[sizeof(buf) - 1] = '\0';
567 if (!hostapd_config_get_radius_attr(req_attr,
568 RADIUS_ATTR_WLAN_HESSID) &&
569 !radius_msg_add_attr(msg, RADIUS_ATTR_WLAN_HESSID,
570 (u8 *) buf, os_strlen(buf))) {
571 wpa_printf(MSG_ERROR, "Could not add WLAN-HESSID");
572 return -1;
573 }
574 }
575 #endif /* CONFIG_INTERWORKING */
576
577 if (sta && add_common_radius_sta_attr(hapd, req_attr, sta, msg) < 0)
578 return -1;
579
580 for (attr = req_attr; attr; attr = attr->next) {
581 if (!radius_msg_add_attr(msg, attr->type,
582 wpabuf_head(attr->val),
583 wpabuf_len(attr->val))) {
584 wpa_printf(MSG_ERROR, "Could not add RADIUS "
585 "attribute");
586 return -1;
587 }
588 }
589
590 return 0;
591 }
592
593
ieee802_1x_encapsulate_radius(struct hostapd_data * hapd,struct sta_info * sta,const u8 * eap,size_t len)594 void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
595 struct sta_info *sta,
596 const u8 *eap, size_t len)
597 {
598 struct radius_msg *msg;
599 struct eapol_state_machine *sm = sta->eapol_sm;
600
601 if (sm == NULL)
602 return;
603
604 ieee802_1x_learn_identity(hapd, sm, eap, len);
605
606 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
607 "packet");
608
609 sm->radius_identifier = radius_client_get_id(hapd->radius);
610 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
611 sm->radius_identifier);
612 if (msg == NULL) {
613 wpa_printf(MSG_INFO, "Could not create new RADIUS packet");
614 return;
615 }
616
617 if (radius_msg_make_authenticator(msg) < 0) {
618 wpa_printf(MSG_INFO, "Could not make Request Authenticator");
619 goto fail;
620 }
621
622 if (sm->identity &&
623 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
624 sm->identity, sm->identity_len)) {
625 wpa_printf(MSG_INFO, "Could not add User-Name");
626 goto fail;
627 }
628
629 if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr, sta,
630 msg) < 0)
631 goto fail;
632
633 /* TODO: should probably check MTU from driver config; 2304 is max for
634 * IEEE 802.11, but use 1400 to avoid problems with too large packets
635 */
636 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
637 RADIUS_ATTR_FRAMED_MTU) &&
638 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
639 wpa_printf(MSG_INFO, "Could not add Framed-MTU");
640 goto fail;
641 }
642
643 if (!radius_msg_add_eap(msg, eap, len)) {
644 wpa_printf(MSG_INFO, "Could not add EAP-Message");
645 goto fail;
646 }
647
648 /* State attribute must be copied if and only if this packet is
649 * Access-Request reply to the previous Access-Challenge */
650 if (sm->last_recv_radius &&
651 radius_msg_get_hdr(sm->last_recv_radius)->code ==
652 RADIUS_CODE_ACCESS_CHALLENGE) {
653 int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
654 RADIUS_ATTR_STATE);
655 if (res < 0) {
656 wpa_printf(MSG_INFO, "Could not copy State attribute from previous Access-Challenge");
657 goto fail;
658 }
659 if (res > 0) {
660 wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
661 }
662 }
663
664 if (hapd->conf->radius_request_cui) {
665 const u8 *cui;
666 size_t cui_len;
667 /* Add previously learned CUI or nul CUI to request CUI */
668 if (sm->radius_cui) {
669 cui = wpabuf_head(sm->radius_cui);
670 cui_len = wpabuf_len(sm->radius_cui);
671 } else {
672 cui = (const u8 *) "\0";
673 cui_len = 1;
674 }
675 if (!radius_msg_add_attr(msg,
676 RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
677 cui, cui_len)) {
678 wpa_printf(MSG_ERROR, "Could not add CUI");
679 goto fail;
680 }
681 }
682
683 #ifdef CONFIG_HS20
684 if (hapd->conf->hs20) {
685 u8 ver = 1; /* Release 2 */
686 if (!radius_msg_add_wfa(
687 msg, RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION,
688 &ver, 1)) {
689 wpa_printf(MSG_ERROR, "Could not add HS 2.0 AP "
690 "version");
691 goto fail;
692 }
693
694 if (sta->hs20_ie && wpabuf_len(sta->hs20_ie) > 0) {
695 const u8 *pos;
696 u8 buf[3];
697 u16 id;
698 pos = wpabuf_head_u8(sta->hs20_ie);
699 buf[0] = (*pos) >> 4;
700 if (((*pos) & HS20_PPS_MO_ID_PRESENT) &&
701 wpabuf_len(sta->hs20_ie) >= 3)
702 id = WPA_GET_LE16(pos + 1);
703 else
704 id = 0;
705 WPA_PUT_BE16(buf + 1, id);
706 if (!radius_msg_add_wfa(
707 msg,
708 RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION,
709 buf, sizeof(buf))) {
710 wpa_printf(MSG_ERROR, "Could not add HS 2.0 "
711 "STA version");
712 goto fail;
713 }
714 }
715 }
716 #endif /* CONFIG_HS20 */
717
718 if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0)
719 goto fail;
720
721 return;
722
723 fail:
724 radius_msg_free(msg);
725 }
726 #endif /* CONFIG_NO_RADIUS */
727
728
handle_eap_response(struct hostapd_data * hapd,struct sta_info * sta,struct eap_hdr * eap,size_t len)729 static void handle_eap_response(struct hostapd_data *hapd,
730 struct sta_info *sta, struct eap_hdr *eap,
731 size_t len)
732 {
733 u8 type, *data;
734 struct eapol_state_machine *sm = sta->eapol_sm;
735 if (sm == NULL)
736 return;
737
738 data = (u8 *) (eap + 1);
739
740 if (len < sizeof(*eap) + 1) {
741 wpa_printf(MSG_INFO, "handle_eap_response: too short response data");
742 return;
743 }
744
745 sm->eap_type_supp = type = data[0];
746
747 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
748 HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
749 "id=%d len=%d) from STA: EAP Response-%s (%d)",
750 eap->code, eap->identifier, be_to_host16(eap->length),
751 eap_server_get_name(0, type), type);
752
753 sm->dot1xAuthEapolRespFramesRx++;
754
755 wpabuf_free(sm->eap_if->eapRespData);
756 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
757 sm->eapolEap = TRUE;
758 }
759
760
handle_eap_initiate(struct hostapd_data * hapd,struct sta_info * sta,struct eap_hdr * eap,size_t len)761 static void handle_eap_initiate(struct hostapd_data *hapd,
762 struct sta_info *sta, struct eap_hdr *eap,
763 size_t len)
764 {
765 #ifdef CONFIG_ERP
766 u8 type, *data;
767 struct eapol_state_machine *sm = sta->eapol_sm;
768
769 if (sm == NULL)
770 return;
771
772 if (len < sizeof(*eap) + 1) {
773 wpa_printf(MSG_INFO,
774 "handle_eap_initiate: too short response data");
775 return;
776 }
777
778 data = (u8 *) (eap + 1);
779 type = data[0];
780
781 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
782 HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
783 "id=%d len=%d) from STA: EAP Initiate type %u",
784 eap->code, eap->identifier, be_to_host16(eap->length),
785 type);
786
787 wpabuf_free(sm->eap_if->eapRespData);
788 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
789 sm->eapolEap = TRUE;
790 #endif /* CONFIG_ERP */
791 }
792
793
794 /* Process incoming EAP packet from Supplicant */
handle_eap(struct hostapd_data * hapd,struct sta_info * sta,u8 * buf,size_t len)795 static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
796 u8 *buf, size_t len)
797 {
798 struct eap_hdr *eap;
799 u16 eap_len;
800
801 if (len < sizeof(*eap)) {
802 wpa_printf(MSG_INFO, " too short EAP packet");
803 return;
804 }
805
806 eap = (struct eap_hdr *) buf;
807
808 eap_len = be_to_host16(eap->length);
809 wpa_printf(MSG_DEBUG, "EAP: code=%d identifier=%d length=%d",
810 eap->code, eap->identifier, eap_len);
811 if (eap_len < sizeof(*eap)) {
812 wpa_printf(MSG_DEBUG, " Invalid EAP length");
813 return;
814 } else if (eap_len > len) {
815 wpa_printf(MSG_DEBUG, " Too short frame to contain this EAP "
816 "packet");
817 return;
818 } else if (eap_len < len) {
819 wpa_printf(MSG_DEBUG, " Ignoring %lu extra bytes after EAP "
820 "packet", (unsigned long) len - eap_len);
821 }
822
823 switch (eap->code) {
824 case EAP_CODE_REQUEST:
825 wpa_printf(MSG_DEBUG, " (request)");
826 return;
827 case EAP_CODE_RESPONSE:
828 wpa_printf(MSG_DEBUG, " (response)");
829 handle_eap_response(hapd, sta, eap, eap_len);
830 break;
831 case EAP_CODE_SUCCESS:
832 wpa_printf(MSG_DEBUG, " (success)");
833 return;
834 case EAP_CODE_FAILURE:
835 wpa_printf(MSG_DEBUG, " (failure)");
836 return;
837 case EAP_CODE_INITIATE:
838 wpa_printf(MSG_DEBUG, " (initiate)");
839 handle_eap_initiate(hapd, sta, eap, eap_len);
840 break;
841 case EAP_CODE_FINISH:
842 wpa_printf(MSG_DEBUG, " (finish)");
843 break;
844 default:
845 wpa_printf(MSG_DEBUG, " (unknown code)");
846 return;
847 }
848 }
849
850
851 struct eapol_state_machine *
ieee802_1x_alloc_eapol_sm(struct hostapd_data * hapd,struct sta_info * sta)852 ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
853 {
854 int flags = 0;
855 if (sta->flags & WLAN_STA_PREAUTH)
856 flags |= EAPOL_SM_PREAUTH;
857 if (sta->wpa_sm) {
858 flags |= EAPOL_SM_USES_WPA;
859 if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
860 flags |= EAPOL_SM_FROM_PMKSA_CACHE;
861 }
862 return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
863 sta->wps_ie, sta->p2p_ie, sta,
864 sta->identity, sta->radius_cui);
865 }
866
867
ieee802_1x_save_eapol(struct sta_info * sta,const u8 * buf,size_t len)868 static void ieee802_1x_save_eapol(struct sta_info *sta, const u8 *buf,
869 size_t len)
870 {
871 if (sta->pending_eapol_rx) {
872 wpabuf_free(sta->pending_eapol_rx->buf);
873 } else {
874 sta->pending_eapol_rx =
875 os_malloc(sizeof(*sta->pending_eapol_rx));
876 if (!sta->pending_eapol_rx)
877 return;
878 }
879
880 sta->pending_eapol_rx->buf = wpabuf_alloc_copy(buf, len);
881 if (!sta->pending_eapol_rx->buf) {
882 os_free(sta->pending_eapol_rx);
883 sta->pending_eapol_rx = NULL;
884 return;
885 }
886
887 os_get_reltime(&sta->pending_eapol_rx->rx_time);
888 }
889
890
891 /**
892 * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
893 * @hapd: hostapd BSS data
894 * @sa: Source address (sender of the EAPOL frame)
895 * @buf: EAPOL frame
896 * @len: Length of buf in octets
897 *
898 * This function is called for each incoming EAPOL frame from the interface
899 */
ieee802_1x_receive(struct hostapd_data * hapd,const u8 * sa,const u8 * buf,size_t len)900 void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
901 size_t len)
902 {
903 struct sta_info *sta;
904 struct ieee802_1x_hdr *hdr;
905 struct ieee802_1x_eapol_key *key;
906 u16 datalen;
907 struct rsn_pmksa_cache_entry *pmksa;
908 int key_mgmt;
909
910 if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen &&
911 !hapd->conf->wps_state)
912 return;
913
914 wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
915 (unsigned long) len, MAC2STR(sa));
916 sta = ap_get_sta(hapd, sa);
917 if (!sta || (!(sta->flags & (WLAN_STA_ASSOC | WLAN_STA_PREAUTH)) &&
918 !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
919 wpa_printf(MSG_DEBUG, "IEEE 802.1X data frame from not "
920 "associated/Pre-authenticating STA");
921
922 if (sta && (sta->flags & WLAN_STA_AUTH)) {
923 wpa_printf(MSG_DEBUG, "Saving EAPOL frame from " MACSTR
924 " for later use", MAC2STR(sta->addr));
925 ieee802_1x_save_eapol(sta, buf, len);
926 }
927
928 return;
929 }
930
931 if (len < sizeof(*hdr)) {
932 wpa_printf(MSG_INFO, " too short IEEE 802.1X packet");
933 return;
934 }
935
936 hdr = (struct ieee802_1x_hdr *) buf;
937 datalen = be_to_host16(hdr->length);
938 wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
939 hdr->version, hdr->type, datalen);
940
941 if (len - sizeof(*hdr) < datalen) {
942 wpa_printf(MSG_INFO, " frame too short for this IEEE 802.1X packet");
943 if (sta->eapol_sm)
944 sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
945 return;
946 }
947 if (len - sizeof(*hdr) > datalen) {
948 wpa_printf(MSG_DEBUG, " ignoring %lu extra octets after "
949 "IEEE 802.1X packet",
950 (unsigned long) len - sizeof(*hdr) - datalen);
951 }
952
953 if (sta->eapol_sm) {
954 sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
955 sta->eapol_sm->dot1xAuthEapolFramesRx++;
956 }
957
958 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
959 if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
960 hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
961 (key->type == EAPOL_KEY_TYPE_WPA ||
962 key->type == EAPOL_KEY_TYPE_RSN)) {
963 wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
964 sizeof(*hdr) + datalen);
965 return;
966 }
967
968 if (!hapd->conf->ieee802_1x && !hapd->conf->osen &&
969 !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
970 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
971 "802.1X not enabled and WPS not used");
972 return;
973 }
974
975 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
976 if (key_mgmt != -1 &&
977 (wpa_key_mgmt_wpa_psk(key_mgmt) || key_mgmt == WPA_KEY_MGMT_OWE ||
978 key_mgmt == WPA_KEY_MGMT_DPP)) {
979 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
980 "STA is using PSK");
981 return;
982 }
983
984 if (!sta->eapol_sm) {
985 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
986 if (!sta->eapol_sm)
987 return;
988
989 #ifdef CONFIG_WPS
990 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state) {
991 u32 wflags = sta->flags & (WLAN_STA_WPS |
992 WLAN_STA_WPS2 |
993 WLAN_STA_MAYBE_WPS);
994 if (wflags == WLAN_STA_MAYBE_WPS ||
995 wflags == (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) {
996 /*
997 * Delay EAPOL frame transmission until a
998 * possible WPS STA initiates the handshake
999 * with EAPOL-Start. Only allow the wait to be
1000 * skipped if the STA is known to support WPS
1001 * 2.0.
1002 */
1003 wpa_printf(MSG_DEBUG, "WPS: Do not start "
1004 "EAPOL until EAPOL-Start is "
1005 "received");
1006 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1007 }
1008 }
1009 #endif /* CONFIG_WPS */
1010
1011 sta->eapol_sm->eap_if->portEnabled = TRUE;
1012 }
1013
1014 /* since we support version 1, we can ignore version field and proceed
1015 * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
1016 /* TODO: actually, we are not version 1 anymore.. However, Version 2
1017 * does not change frame contents, so should be ok to process frames
1018 * more or less identically. Some changes might be needed for
1019 * verification of fields. */
1020
1021 switch (hdr->type) {
1022 case IEEE802_1X_TYPE_EAP_PACKET:
1023 handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
1024 break;
1025
1026 case IEEE802_1X_TYPE_EAPOL_START:
1027 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1028 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Start "
1029 "from STA");
1030 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
1031 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1032 if (pmksa) {
1033 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
1034 HOSTAPD_LEVEL_DEBUG, "cached PMKSA "
1035 "available - ignore it since "
1036 "STA sent EAPOL-Start");
1037 wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
1038 }
1039 sta->eapol_sm->eapolStart = TRUE;
1040 sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
1041 eap_server_clear_identity(sta->eapol_sm->eap);
1042 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
1043 break;
1044
1045 case IEEE802_1X_TYPE_EAPOL_LOGOFF:
1046 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1047 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Logoff "
1048 "from STA");
1049 sta->acct_terminate_cause =
1050 RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
1051 accounting_sta_stop(hapd, sta);
1052 sta->eapol_sm->eapolLogoff = TRUE;
1053 sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
1054 eap_server_clear_identity(sta->eapol_sm->eap);
1055 break;
1056
1057 case IEEE802_1X_TYPE_EAPOL_KEY:
1058 wpa_printf(MSG_DEBUG, " EAPOL-Key");
1059 if (!ap_sta_is_authorized(sta)) {
1060 wpa_printf(MSG_DEBUG, " Dropped key data from "
1061 "unauthorized Supplicant");
1062 break;
1063 }
1064 break;
1065
1066 case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
1067 wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
1068 /* TODO: implement support for this; show data */
1069 break;
1070
1071 default:
1072 wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
1073 sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
1074 break;
1075 }
1076
1077 eapol_auth_step(sta->eapol_sm);
1078 }
1079
1080
1081 /**
1082 * ieee802_1x_new_station - Start IEEE 802.1X authentication
1083 * @hapd: hostapd BSS data
1084 * @sta: The station
1085 *
1086 * This function is called to start IEEE 802.1X authentication when a new
1087 * station completes IEEE 802.11 association.
1088 */
ieee802_1x_new_station(struct hostapd_data * hapd,struct sta_info * sta)1089 void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
1090 {
1091 struct rsn_pmksa_cache_entry *pmksa;
1092 int reassoc = 1;
1093 int force_1x = 0;
1094 int key_mgmt;
1095
1096 #ifdef CONFIG_WPS
1097 if (hapd->conf->wps_state &&
1098 ((hapd->conf->wpa && (sta->flags & WLAN_STA_MAYBE_WPS)) ||
1099 (sta->flags & WLAN_STA_WPS))) {
1100 /*
1101 * Need to enable IEEE 802.1X/EAPOL state machines for possible
1102 * WPS handshake even if IEEE 802.1X/EAPOL is not used for
1103 * authentication in this BSS.
1104 */
1105 force_1x = 1;
1106 }
1107 #endif /* CONFIG_WPS */
1108
1109 if (!force_1x && !hapd->conf->ieee802_1x && !hapd->conf->osen) {
1110 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - "
1111 "802.1X not enabled or forced for WPS");
1112 /*
1113 * Clear any possible EAPOL authenticator state to support
1114 * reassociation change from WPS to PSK.
1115 */
1116 ieee802_1x_free_station(hapd, sta);
1117 return;
1118 }
1119
1120 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
1121 if (key_mgmt != -1 &&
1122 (wpa_key_mgmt_wpa_psk(key_mgmt) || key_mgmt == WPA_KEY_MGMT_OWE ||
1123 key_mgmt == WPA_KEY_MGMT_DPP)) {
1124 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - using PSK");
1125 /*
1126 * Clear any possible EAPOL authenticator state to support
1127 * reassociation change from WPA-EAP to PSK.
1128 */
1129 ieee802_1x_free_station(hapd, sta);
1130 return;
1131 }
1132
1133 if (sta->eapol_sm == NULL) {
1134 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1135 HOSTAPD_LEVEL_DEBUG, "start authentication");
1136 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
1137 if (sta->eapol_sm == NULL) {
1138 hostapd_logger(hapd, sta->addr,
1139 HOSTAPD_MODULE_IEEE8021X,
1140 HOSTAPD_LEVEL_INFO,
1141 "failed to allocate state machine");
1142 return;
1143 }
1144 reassoc = 0;
1145 }
1146
1147 #ifdef CONFIG_WPS
1148 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
1149 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state &&
1150 !(sta->flags & WLAN_STA_WPS2)) {
1151 /*
1152 * Delay EAPOL frame transmission until a possible WPS STA
1153 * initiates the handshake with EAPOL-Start. Only allow the
1154 * wait to be skipped if the STA is known to support WPS 2.0.
1155 */
1156 wpa_printf(MSG_DEBUG, "WPS: Do not start EAPOL until "
1157 "EAPOL-Start is received");
1158 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1159 }
1160 #endif /* CONFIG_WPS */
1161
1162 sta->eapol_sm->eap_if->portEnabled = TRUE;
1163
1164 #ifdef CONFIG_IEEE80211R_AP
1165 if (sta->auth_alg == WLAN_AUTH_FT) {
1166 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1167 HOSTAPD_LEVEL_DEBUG,
1168 "PMK from FT - skip IEEE 802.1X/EAP");
1169 /* Setup EAPOL state machines to already authenticated state
1170 * because of existing FT information from R0KH. */
1171 sta->eapol_sm->keyRun = TRUE;
1172 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1173 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1174 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1175 sta->eapol_sm->authSuccess = TRUE;
1176 sta->eapol_sm->authFail = FALSE;
1177 sta->eapol_sm->portValid = TRUE;
1178 if (sta->eapol_sm->eap)
1179 eap_sm_notify_cached(sta->eapol_sm->eap);
1180 /* TODO: get vlan_id from R0KH using RRB message */
1181 return;
1182 }
1183 #endif /* CONFIG_IEEE80211R_AP */
1184
1185 #ifdef CONFIG_FILS
1186 if (sta->auth_alg == WLAN_AUTH_FILS_SK ||
1187 sta->auth_alg == WLAN_AUTH_FILS_SK_PFS ||
1188 sta->auth_alg == WLAN_AUTH_FILS_PK) {
1189 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1190 HOSTAPD_LEVEL_DEBUG,
1191 "PMK from FILS - skip IEEE 802.1X/EAP");
1192 /* Setup EAPOL state machines to already authenticated state
1193 * because of existing FILS information. */
1194 sta->eapol_sm->keyRun = TRUE;
1195 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1196 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1197 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1198 sta->eapol_sm->authSuccess = TRUE;
1199 sta->eapol_sm->authFail = FALSE;
1200 sta->eapol_sm->portValid = TRUE;
1201 if (sta->eapol_sm->eap)
1202 eap_sm_notify_cached(sta->eapol_sm->eap);
1203 return;
1204 }
1205 #endif /* CONFIG_FILS */
1206
1207 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1208 if (pmksa) {
1209 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1210 HOSTAPD_LEVEL_DEBUG,
1211 "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
1212 /* Setup EAPOL state machines to already authenticated state
1213 * because of existing PMKSA information in the cache. */
1214 sta->eapol_sm->keyRun = TRUE;
1215 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1216 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1217 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1218 sta->eapol_sm->authSuccess = TRUE;
1219 sta->eapol_sm->authFail = FALSE;
1220 if (sta->eapol_sm->eap)
1221 eap_sm_notify_cached(sta->eapol_sm->eap);
1222 pmksa_cache_to_eapol_data(hapd, pmksa, sta->eapol_sm);
1223 ap_sta_bind_vlan(hapd, sta);
1224 } else {
1225 if (reassoc) {
1226 /*
1227 * Force EAPOL state machines to start
1228 * re-authentication without having to wait for the
1229 * Supplicant to send EAPOL-Start.
1230 */
1231 sta->eapol_sm->reAuthenticate = TRUE;
1232 }
1233 eapol_auth_step(sta->eapol_sm);
1234 }
1235 }
1236
1237
ieee802_1x_free_station(struct hostapd_data * hapd,struct sta_info * sta)1238 void ieee802_1x_free_station(struct hostapd_data *hapd, struct sta_info *sta)
1239 {
1240 struct eapol_state_machine *sm = sta->eapol_sm;
1241
1242 #ifdef CONFIG_HS20
1243 eloop_cancel_timeout(ieee802_1x_wnm_notif_send, hapd, sta);
1244 #endif /* CONFIG_HS20 */
1245
1246 if (sta->pending_eapol_rx) {
1247 wpabuf_free(sta->pending_eapol_rx->buf);
1248 os_free(sta->pending_eapol_rx);
1249 sta->pending_eapol_rx = NULL;
1250 }
1251
1252 if (sm == NULL)
1253 return;
1254
1255 sta->eapol_sm = NULL;
1256
1257 #ifndef CONFIG_NO_RADIUS
1258 radius_msg_free(sm->last_recv_radius);
1259 radius_free_class(&sm->radius_class);
1260 #endif /* CONFIG_NO_RADIUS */
1261
1262 eapol_auth_free(sm);
1263 }
1264
1265
1266 #ifndef CONFIG_NO_RADIUS
ieee802_1x_decapsulate_radius(struct hostapd_data * hapd,struct sta_info * sta)1267 static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
1268 struct sta_info *sta)
1269 {
1270 struct wpabuf *eap;
1271 const struct eap_hdr *hdr;
1272 int eap_type = -1;
1273 char buf[64];
1274 struct radius_msg *msg;
1275 struct eapol_state_machine *sm = sta->eapol_sm;
1276
1277 if (sm == NULL || sm->last_recv_radius == NULL) {
1278 if (sm)
1279 sm->eap_if->aaaEapNoReq = TRUE;
1280 return;
1281 }
1282
1283 msg = sm->last_recv_radius;
1284
1285 eap = radius_msg_get_eap(msg);
1286 if (eap == NULL) {
1287 /* RFC 3579, Chap. 2.6.3:
1288 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
1289 * attribute */
1290 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1291 HOSTAPD_LEVEL_WARNING, "could not extract "
1292 "EAP-Message from RADIUS message");
1293 sm->eap_if->aaaEapNoReq = TRUE;
1294 return;
1295 }
1296
1297 if (wpabuf_len(eap) < sizeof(*hdr)) {
1298 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1299 HOSTAPD_LEVEL_WARNING, "too short EAP packet "
1300 "received from authentication server");
1301 wpabuf_free(eap);
1302 sm->eap_if->aaaEapNoReq = TRUE;
1303 return;
1304 }
1305
1306 if (wpabuf_len(eap) > sizeof(*hdr))
1307 eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)];
1308
1309 hdr = wpabuf_head(eap);
1310 switch (hdr->code) {
1311 case EAP_CODE_REQUEST:
1312 if (eap_type >= 0)
1313 sm->eap_type_authsrv = eap_type;
1314 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
1315 eap_server_get_name(0, eap_type), eap_type);
1316 break;
1317 case EAP_CODE_RESPONSE:
1318 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
1319 eap_server_get_name(0, eap_type), eap_type);
1320 break;
1321 case EAP_CODE_SUCCESS:
1322 os_strlcpy(buf, "EAP Success", sizeof(buf));
1323 break;
1324 case EAP_CODE_FAILURE:
1325 os_strlcpy(buf, "EAP Failure", sizeof(buf));
1326 break;
1327 default:
1328 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
1329 break;
1330 }
1331 buf[sizeof(buf) - 1] = '\0';
1332 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1333 HOSTAPD_LEVEL_DEBUG, "decapsulated EAP packet (code=%d "
1334 "id=%d len=%d) from RADIUS server: %s",
1335 hdr->code, hdr->identifier, be_to_host16(hdr->length),
1336 buf);
1337 sm->eap_if->aaaEapReq = TRUE;
1338
1339 wpabuf_free(sm->eap_if->aaaEapReqData);
1340 sm->eap_if->aaaEapReqData = eap;
1341 }
1342
1343
ieee802_1x_get_keys(struct hostapd_data * hapd,struct sta_info * sta,struct radius_msg * msg,struct radius_msg * req,const u8 * shared_secret,size_t shared_secret_len)1344 static void ieee802_1x_get_keys(struct hostapd_data *hapd,
1345 struct sta_info *sta, struct radius_msg *msg,
1346 struct radius_msg *req,
1347 const u8 *shared_secret,
1348 size_t shared_secret_len)
1349 {
1350 struct radius_ms_mppe_keys *keys;
1351 struct eapol_state_machine *sm = sta->eapol_sm;
1352 if (sm == NULL)
1353 return;
1354
1355 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
1356 shared_secret_len);
1357
1358 if (keys && keys->send && keys->recv) {
1359 size_t len = keys->send_len + keys->recv_len;
1360 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
1361 keys->send, keys->send_len);
1362 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
1363 keys->recv, keys->recv_len);
1364
1365 os_free(sm->eap_if->aaaEapKeyData);
1366 sm->eap_if->aaaEapKeyData = os_malloc(len);
1367 if (sm->eap_if->aaaEapKeyData) {
1368 os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
1369 keys->recv_len);
1370 os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
1371 keys->send, keys->send_len);
1372 sm->eap_if->aaaEapKeyDataLen = len;
1373 sm->eap_if->aaaEapKeyAvailable = TRUE;
1374 }
1375 } else {
1376 wpa_printf(MSG_DEBUG,
1377 "MS-MPPE: 1x_get_keys, could not get keys: %p send: %p recv: %p",
1378 keys, keys ? keys->send : NULL,
1379 keys ? keys->recv : NULL);
1380 }
1381
1382 if (keys) {
1383 os_free(keys->send);
1384 os_free(keys->recv);
1385 os_free(keys);
1386 }
1387 }
1388
1389
ieee802_1x_store_radius_class(struct hostapd_data * hapd,struct sta_info * sta,struct radius_msg * msg)1390 static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
1391 struct sta_info *sta,
1392 struct radius_msg *msg)
1393 {
1394 u8 *attr_class;
1395 size_t class_len;
1396 struct eapol_state_machine *sm = sta->eapol_sm;
1397 int count, i;
1398 struct radius_attr_data *nclass;
1399 size_t nclass_count;
1400
1401 if (!hapd->conf->radius->acct_server || hapd->radius == NULL ||
1402 sm == NULL)
1403 return;
1404
1405 radius_free_class(&sm->radius_class);
1406 count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
1407 if (count <= 0)
1408 return;
1409
1410 nclass = os_calloc(count, sizeof(struct radius_attr_data));
1411 if (nclass == NULL)
1412 return;
1413
1414 nclass_count = 0;
1415
1416 attr_class = NULL;
1417 for (i = 0; i < count; i++) {
1418 do {
1419 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
1420 &attr_class, &class_len,
1421 attr_class) < 0) {
1422 i = count;
1423 break;
1424 }
1425 } while (class_len < 1);
1426
1427 nclass[nclass_count].data = os_memdup(attr_class, class_len);
1428 if (nclass[nclass_count].data == NULL)
1429 break;
1430
1431 nclass[nclass_count].len = class_len;
1432 nclass_count++;
1433 }
1434
1435 sm->radius_class.attr = nclass;
1436 sm->radius_class.count = nclass_count;
1437 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Stored %lu RADIUS Class "
1438 "attributes for " MACSTR,
1439 (unsigned long) sm->radius_class.count,
1440 MAC2STR(sta->addr));
1441 }
1442
1443
1444 /* Update sta->identity based on User-Name attribute in Access-Accept */
ieee802_1x_update_sta_identity(struct hostapd_data * hapd,struct sta_info * sta,struct radius_msg * msg)1445 static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
1446 struct sta_info *sta,
1447 struct radius_msg *msg)
1448 {
1449 u8 *buf, *identity;
1450 size_t len;
1451 struct eapol_state_machine *sm = sta->eapol_sm;
1452
1453 if (sm == NULL)
1454 return;
1455
1456 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
1457 NULL) < 0)
1458 return;
1459
1460 identity = (u8 *) dup_binstr(buf, len);
1461 if (identity == NULL)
1462 return;
1463
1464 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1465 HOSTAPD_LEVEL_DEBUG, "old identity '%s' updated with "
1466 "User-Name from Access-Accept '%s'",
1467 sm->identity ? (char *) sm->identity : "N/A",
1468 (char *) identity);
1469
1470 os_free(sm->identity);
1471 sm->identity = identity;
1472 sm->identity_len = len;
1473 }
1474
1475
1476 /* Update CUI based on Chargeable-User-Identity attribute in Access-Accept */
ieee802_1x_update_sta_cui(struct hostapd_data * hapd,struct sta_info * sta,struct radius_msg * msg)1477 static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd,
1478 struct sta_info *sta,
1479 struct radius_msg *msg)
1480 {
1481 struct eapol_state_machine *sm = sta->eapol_sm;
1482 struct wpabuf *cui;
1483 u8 *buf;
1484 size_t len;
1485
1486 if (sm == NULL)
1487 return;
1488
1489 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
1490 &buf, &len, NULL) < 0)
1491 return;
1492
1493 cui = wpabuf_alloc_copy(buf, len);
1494 if (cui == NULL)
1495 return;
1496
1497 wpabuf_free(sm->radius_cui);
1498 sm->radius_cui = cui;
1499 }
1500
1501
1502 #ifdef CONFIG_HS20
1503
ieee802_1x_hs20_sub_rem(struct sta_info * sta,u8 * pos,size_t len)1504 static void ieee802_1x_hs20_sub_rem(struct sta_info *sta, u8 *pos, size_t len)
1505 {
1506 sta->remediation = 1;
1507 os_free(sta->remediation_url);
1508 if (len > 2) {
1509 sta->remediation_url = os_malloc(len);
1510 if (!sta->remediation_url)
1511 return;
1512 sta->remediation_method = pos[0];
1513 os_memcpy(sta->remediation_url, pos + 1, len - 1);
1514 sta->remediation_url[len - 1] = '\0';
1515 wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1516 "for " MACSTR " - server method %u URL %s",
1517 MAC2STR(sta->addr), sta->remediation_method,
1518 sta->remediation_url);
1519 } else {
1520 sta->remediation_url = NULL;
1521 wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1522 "for " MACSTR, MAC2STR(sta->addr));
1523 }
1524 /* TODO: assign the STA into remediation VLAN or add filtering */
1525 }
1526
1527
ieee802_1x_hs20_deauth_req(struct hostapd_data * hapd,struct sta_info * sta,u8 * pos,size_t len)1528 static void ieee802_1x_hs20_deauth_req(struct hostapd_data *hapd,
1529 struct sta_info *sta, u8 *pos,
1530 size_t len)
1531 {
1532 if (len < 3)
1533 return; /* Malformed information */
1534 sta->hs20_deauth_requested = 1;
1535 wpa_printf(MSG_DEBUG, "HS 2.0: Deauthentication request - Code %u "
1536 "Re-auth Delay %u",
1537 *pos, WPA_GET_LE16(pos + 1));
1538 wpabuf_free(sta->hs20_deauth_req);
1539 sta->hs20_deauth_req = wpabuf_alloc(len + 1);
1540 if (sta->hs20_deauth_req) {
1541 wpabuf_put_data(sta->hs20_deauth_req, pos, 3);
1542 wpabuf_put_u8(sta->hs20_deauth_req, len - 3);
1543 wpabuf_put_data(sta->hs20_deauth_req, pos + 3, len - 3);
1544 }
1545 ap_sta_session_timeout(hapd, sta, hapd->conf->hs20_deauth_req_timeout);
1546 }
1547
1548
ieee802_1x_hs20_session_info(struct hostapd_data * hapd,struct sta_info * sta,u8 * pos,size_t len,int session_timeout)1549 static void ieee802_1x_hs20_session_info(struct hostapd_data *hapd,
1550 struct sta_info *sta, u8 *pos,
1551 size_t len, int session_timeout)
1552 {
1553 unsigned int swt;
1554 int warning_time, beacon_int;
1555
1556 if (len < 1)
1557 return; /* Malformed information */
1558 os_free(sta->hs20_session_info_url);
1559 sta->hs20_session_info_url = os_malloc(len);
1560 if (sta->hs20_session_info_url == NULL)
1561 return;
1562 swt = pos[0];
1563 os_memcpy(sta->hs20_session_info_url, pos + 1, len - 1);
1564 sta->hs20_session_info_url[len - 1] = '\0';
1565 wpa_printf(MSG_DEBUG, "HS 2.0: Session Information URL='%s' SWT=%u "
1566 "(session_timeout=%d)",
1567 sta->hs20_session_info_url, swt, session_timeout);
1568 if (session_timeout < 0) {
1569 wpa_printf(MSG_DEBUG, "HS 2.0: No Session-Timeout set - ignore session info URL");
1570 return;
1571 }
1572 if (swt == 255)
1573 swt = 1; /* Use one minute as the AP selected value */
1574
1575 if ((unsigned int) session_timeout < swt * 60)
1576 warning_time = 0;
1577 else
1578 warning_time = session_timeout - swt * 60;
1579
1580 beacon_int = hapd->iconf->beacon_int;
1581 if (beacon_int < 1)
1582 beacon_int = 100; /* best guess */
1583 sta->hs20_disassoc_timer = swt * 60 * 1000 / beacon_int * 125 / 128;
1584 if (sta->hs20_disassoc_timer > 65535)
1585 sta->hs20_disassoc_timer = 65535;
1586
1587 ap_sta_session_warning_timeout(hapd, sta, warning_time);
1588 }
1589
1590 #endif /* CONFIG_HS20 */
1591
1592
ieee802_1x_check_hs20(struct hostapd_data * hapd,struct sta_info * sta,struct radius_msg * msg,int session_timeout)1593 static void ieee802_1x_check_hs20(struct hostapd_data *hapd,
1594 struct sta_info *sta,
1595 struct radius_msg *msg,
1596 int session_timeout)
1597 {
1598 #ifdef CONFIG_HS20
1599 u8 *buf, *pos, *end, type, sublen;
1600 size_t len;
1601
1602 buf = NULL;
1603 sta->remediation = 0;
1604 sta->hs20_deauth_requested = 0;
1605
1606 for (;;) {
1607 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_VENDOR_SPECIFIC,
1608 &buf, &len, buf) < 0)
1609 break;
1610 if (len < 6)
1611 continue;
1612 pos = buf;
1613 end = buf + len;
1614 if (WPA_GET_BE32(pos) != RADIUS_VENDOR_ID_WFA)
1615 continue;
1616 pos += 4;
1617
1618 type = *pos++;
1619 sublen = *pos++;
1620 if (sublen < 2)
1621 continue; /* invalid length */
1622 sublen -= 2; /* skip header */
1623 if (pos + sublen > end)
1624 continue; /* invalid WFA VSA */
1625
1626 switch (type) {
1627 case RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION:
1628 ieee802_1x_hs20_sub_rem(sta, pos, sublen);
1629 break;
1630 case RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ:
1631 ieee802_1x_hs20_deauth_req(hapd, sta, pos, sublen);
1632 break;
1633 case RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL:
1634 ieee802_1x_hs20_session_info(hapd, sta, pos, sublen,
1635 session_timeout);
1636 break;
1637 }
1638 }
1639 #endif /* CONFIG_HS20 */
1640 }
1641
1642
1643 struct sta_id_search {
1644 u8 identifier;
1645 struct eapol_state_machine *sm;
1646 };
1647
1648
ieee802_1x_select_radius_identifier(struct hostapd_data * hapd,struct sta_info * sta,void * ctx)1649 static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
1650 struct sta_info *sta,
1651 void *ctx)
1652 {
1653 struct sta_id_search *id_search = ctx;
1654 struct eapol_state_machine *sm = sta->eapol_sm;
1655
1656 if (sm && sm->radius_identifier >= 0 &&
1657 sm->radius_identifier == id_search->identifier) {
1658 id_search->sm = sm;
1659 return 1;
1660 }
1661 return 0;
1662 }
1663
1664
1665 static struct eapol_state_machine *
ieee802_1x_search_radius_identifier(struct hostapd_data * hapd,u8 identifier)1666 ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
1667 {
1668 struct sta_id_search id_search;
1669 id_search.identifier = identifier;
1670 id_search.sm = NULL;
1671 ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
1672 return id_search.sm;
1673 }
1674
1675
1676 /**
1677 * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
1678 * @msg: RADIUS response message
1679 * @req: RADIUS request message
1680 * @shared_secret: RADIUS shared secret
1681 * @shared_secret_len: Length of shared_secret in octets
1682 * @data: Context data (struct hostapd_data *)
1683 * Returns: Processing status
1684 */
1685 static RadiusRxResult
ieee802_1x_receive_auth(struct radius_msg * msg,struct radius_msg * req,const u8 * shared_secret,size_t shared_secret_len,void * data)1686 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
1687 const u8 *shared_secret, size_t shared_secret_len,
1688 void *data)
1689 {
1690 struct hostapd_data *hapd = data;
1691 struct sta_info *sta;
1692 u32 session_timeout = 0, termination_action, acct_interim_interval;
1693 int session_timeout_set;
1694 struct eapol_state_machine *sm;
1695 int override_eapReq = 0;
1696 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
1697 struct vlan_description vlan_desc;
1698 #ifndef CONFIG_NO_VLAN
1699 int *untagged, *tagged, *notempty;
1700 #endif /* CONFIG_NO_VLAN */
1701
1702 os_memset(&vlan_desc, 0, sizeof(vlan_desc));
1703
1704 sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
1705 if (sm == NULL) {
1706 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Could not find matching "
1707 "station for this RADIUS message");
1708 return RADIUS_RX_UNKNOWN;
1709 }
1710 sta = sm->sta;
1711
1712 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
1713 * present when packet contains an EAP-Message attribute */
1714 if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
1715 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
1716 0) < 0 &&
1717 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
1718 wpa_printf(MSG_DEBUG, "Allowing RADIUS Access-Reject without "
1719 "Message-Authenticator since it does not include "
1720 "EAP-Message");
1721 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
1722 req, 1)) {
1723 wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have correct Message-Authenticator - dropped");
1724 return RADIUS_RX_INVALID_AUTHENTICATOR;
1725 }
1726
1727 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
1728 hdr->code != RADIUS_CODE_ACCESS_REJECT &&
1729 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
1730 wpa_printf(MSG_INFO, "Unknown RADIUS message code");
1731 return RADIUS_RX_UNKNOWN;
1732 }
1733
1734 sm->radius_identifier = -1;
1735 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
1736 MAC2STR(sta->addr));
1737
1738 radius_msg_free(sm->last_recv_radius);
1739 sm->last_recv_radius = msg;
1740
1741 session_timeout_set =
1742 !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
1743 &session_timeout);
1744 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
1745 &termination_action))
1746 termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
1747
1748 if (hapd->conf->acct_interim_interval == 0 &&
1749 hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
1750 radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
1751 &acct_interim_interval) == 0) {
1752 if (acct_interim_interval < 60) {
1753 hostapd_logger(hapd, sta->addr,
1754 HOSTAPD_MODULE_IEEE8021X,
1755 HOSTAPD_LEVEL_INFO,
1756 "ignored too small "
1757 "Acct-Interim-Interval %d",
1758 acct_interim_interval);
1759 } else
1760 sta->acct_interim_interval = acct_interim_interval;
1761 }
1762
1763
1764 switch (hdr->code) {
1765 case RADIUS_CODE_ACCESS_ACCEPT:
1766 #ifndef CONFIG_NO_VLAN
1767 if (hapd->conf->ssid.dynamic_vlan != DYNAMIC_VLAN_DISABLED) {
1768 notempty = &vlan_desc.notempty;
1769 untagged = &vlan_desc.untagged;
1770 tagged = vlan_desc.tagged;
1771 *notempty = !!radius_msg_get_vlanid(msg, untagged,
1772 MAX_NUM_TAGGED_VLAN,
1773 tagged);
1774 }
1775
1776 if (vlan_desc.notempty &&
1777 !hostapd_vlan_valid(hapd->conf->vlan, &vlan_desc)) {
1778 sta->eapol_sm->authFail = TRUE;
1779 hostapd_logger(hapd, sta->addr,
1780 HOSTAPD_MODULE_RADIUS,
1781 HOSTAPD_LEVEL_INFO,
1782 "Invalid VLAN %d%s received from RADIUS server",
1783 vlan_desc.untagged,
1784 vlan_desc.tagged[0] ? "+" : "");
1785 os_memset(&vlan_desc, 0, sizeof(vlan_desc));
1786 ap_sta_set_vlan(hapd, sta, &vlan_desc);
1787 break;
1788 }
1789
1790 if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_REQUIRED &&
1791 !vlan_desc.notempty) {
1792 sta->eapol_sm->authFail = TRUE;
1793 hostapd_logger(hapd, sta->addr,
1794 HOSTAPD_MODULE_IEEE8021X,
1795 HOSTAPD_LEVEL_INFO, "authentication "
1796 "server did not include required VLAN "
1797 "ID in Access-Accept");
1798 break;
1799 }
1800 #endif /* CONFIG_NO_VLAN */
1801
1802 if (ap_sta_set_vlan(hapd, sta, &vlan_desc) < 0)
1803 break;
1804
1805 #ifndef CONFIG_NO_VLAN
1806 if (sta->vlan_id > 0) {
1807 hostapd_logger(hapd, sta->addr,
1808 HOSTAPD_MODULE_RADIUS,
1809 HOSTAPD_LEVEL_INFO,
1810 "VLAN ID %d", sta->vlan_id);
1811 }
1812 #endif /* CONFIG_NO_VLAN */
1813
1814 if ((sta->flags & WLAN_STA_ASSOC) &&
1815 ap_sta_bind_vlan(hapd, sta) < 0)
1816 break;
1817
1818 sta->session_timeout_set = !!session_timeout_set;
1819 sta->session_timeout = session_timeout;
1820
1821 /* RFC 3580, Ch. 3.17 */
1822 if (session_timeout_set && termination_action ==
1823 RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) {
1824 sm->reAuthPeriod = session_timeout;
1825 } else if (session_timeout_set)
1826 ap_sta_session_timeout(hapd, sta, session_timeout);
1827
1828 sm->eap_if->aaaSuccess = TRUE;
1829 override_eapReq = 1;
1830 ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
1831 shared_secret_len);
1832 ieee802_1x_store_radius_class(hapd, sta, msg);
1833 ieee802_1x_update_sta_identity(hapd, sta, msg);
1834 ieee802_1x_update_sta_cui(hapd, sta, msg);
1835 ieee802_1x_check_hs20(hapd, sta, msg,
1836 session_timeout_set ?
1837 (int) session_timeout : -1);
1838 break;
1839 case RADIUS_CODE_ACCESS_REJECT:
1840 sm->eap_if->aaaFail = TRUE;
1841 override_eapReq = 1;
1842 break;
1843 case RADIUS_CODE_ACCESS_CHALLENGE:
1844 sm->eap_if->aaaEapReq = TRUE;
1845 if (session_timeout_set) {
1846 /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
1847 sm->eap_if->aaaMethodTimeout = session_timeout;
1848 hostapd_logger(hapd, sm->addr,
1849 HOSTAPD_MODULE_IEEE8021X,
1850 HOSTAPD_LEVEL_DEBUG,
1851 "using EAP timeout of %d seconds (from "
1852 "RADIUS)",
1853 sm->eap_if->aaaMethodTimeout);
1854 } else {
1855 /*
1856 * Use dynamic retransmission behavior per EAP
1857 * specification.
1858 */
1859 sm->eap_if->aaaMethodTimeout = 0;
1860 }
1861 break;
1862 }
1863
1864 ieee802_1x_decapsulate_radius(hapd, sta);
1865 if (override_eapReq)
1866 sm->eap_if->aaaEapReq = FALSE;
1867
1868 #ifdef CONFIG_FILS
1869 #ifdef NEED_AP_MLME
1870 if (sta->flags & WLAN_STA_PENDING_FILS_ERP) {
1871 /* TODO: Add a PMKSA entry on success? */
1872 ieee802_11_finish_fils_auth(
1873 hapd, sta, hdr->code == RADIUS_CODE_ACCESS_ACCEPT,
1874 sm->eap_if->aaaEapReqData,
1875 sm->eap_if->aaaEapKeyData,
1876 sm->eap_if->aaaEapKeyDataLen);
1877 }
1878 #endif /* NEED_AP_MLME */
1879 #endif /* CONFIG_FILS */
1880
1881 eapol_auth_step(sm);
1882
1883 return RADIUS_RX_QUEUED;
1884 }
1885 #endif /* CONFIG_NO_RADIUS */
1886
1887
ieee802_1x_abort_auth(struct hostapd_data * hapd,struct sta_info * sta)1888 void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
1889 {
1890 struct eapol_state_machine *sm = sta->eapol_sm;
1891 if (sm == NULL)
1892 return;
1893
1894 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1895 HOSTAPD_LEVEL_DEBUG, "aborting authentication");
1896
1897 #ifndef CONFIG_NO_RADIUS
1898 radius_msg_free(sm->last_recv_radius);
1899 sm->last_recv_radius = NULL;
1900 #endif /* CONFIG_NO_RADIUS */
1901
1902 if (sm->eap_if->eapTimeout) {
1903 /*
1904 * Disconnect the STA since it did not reply to the last EAP
1905 * request and we cannot continue EAP processing (EAP-Failure
1906 * could only be sent if the EAP peer actually replied).
1907 */
1908 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "EAP Timeout, STA " MACSTR,
1909 MAC2STR(sta->addr));
1910
1911 sm->eap_if->portEnabled = FALSE;
1912 ap_sta_disconnect(hapd, sta, sta->addr,
1913 WLAN_REASON_PREV_AUTH_NOT_VALID);
1914 }
1915 }
1916
1917
ieee802_1x_rekey_broadcast(struct hostapd_data * hapd)1918 static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
1919 {
1920 struct eapol_authenticator *eapol = hapd->eapol_auth;
1921
1922 if (hapd->conf->default_wep_key_len < 1)
1923 return 0;
1924
1925 os_free(eapol->default_wep_key);
1926 eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
1927 if (eapol->default_wep_key == NULL ||
1928 random_get_bytes(eapol->default_wep_key,
1929 hapd->conf->default_wep_key_len)) {
1930 wpa_printf(MSG_INFO, "Could not generate random WEP key");
1931 os_free(eapol->default_wep_key);
1932 eapol->default_wep_key = NULL;
1933 return -1;
1934 }
1935
1936 wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
1937 eapol->default_wep_key,
1938 hapd->conf->default_wep_key_len);
1939
1940 return 0;
1941 }
1942
1943
ieee802_1x_sta_key_available(struct hostapd_data * hapd,struct sta_info * sta,void * ctx)1944 static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
1945 struct sta_info *sta, void *ctx)
1946 {
1947 if (sta->eapol_sm) {
1948 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1949 eapol_auth_step(sta->eapol_sm);
1950 }
1951 return 0;
1952 }
1953
1954
ieee802_1x_rekey(void * eloop_ctx,void * timeout_ctx)1955 static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
1956 {
1957 struct hostapd_data *hapd = eloop_ctx;
1958 struct eapol_authenticator *eapol = hapd->eapol_auth;
1959
1960 if (eapol->default_wep_key_idx >= 3)
1961 eapol->default_wep_key_idx =
1962 hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
1963 else
1964 eapol->default_wep_key_idx++;
1965
1966 wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
1967 eapol->default_wep_key_idx);
1968
1969 if (ieee802_1x_rekey_broadcast(hapd)) {
1970 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1971 HOSTAPD_LEVEL_WARNING, "failed to generate a "
1972 "new broadcast key");
1973 os_free(eapol->default_wep_key);
1974 eapol->default_wep_key = NULL;
1975 return;
1976 }
1977
1978 /* TODO: Could setup key for RX here, but change default TX keyid only
1979 * after new broadcast key has been sent to all stations. */
1980 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
1981 broadcast_ether_addr,
1982 eapol->default_wep_key_idx, 1, NULL, 0,
1983 eapol->default_wep_key,
1984 hapd->conf->default_wep_key_len)) {
1985 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1986 HOSTAPD_LEVEL_WARNING, "failed to configure a "
1987 "new broadcast key");
1988 os_free(eapol->default_wep_key);
1989 eapol->default_wep_key = NULL;
1990 return;
1991 }
1992
1993 ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
1994
1995 if (hapd->conf->wep_rekeying_period > 0) {
1996 eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
1997 ieee802_1x_rekey, hapd, NULL);
1998 }
1999 }
2000
2001
ieee802_1x_eapol_send(void * ctx,void * sta_ctx,u8 type,const u8 * data,size_t datalen)2002 static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
2003 const u8 *data, size_t datalen)
2004 {
2005 #ifdef CONFIG_WPS
2006 struct sta_info *sta = sta_ctx;
2007
2008 if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
2009 WLAN_STA_MAYBE_WPS) {
2010 const u8 *identity;
2011 size_t identity_len;
2012 struct eapol_state_machine *sm = sta->eapol_sm;
2013
2014 identity = eap_get_identity(sm->eap, &identity_len);
2015 if (identity &&
2016 ((identity_len == WSC_ID_ENROLLEE_LEN &&
2017 os_memcmp(identity, WSC_ID_ENROLLEE,
2018 WSC_ID_ENROLLEE_LEN) == 0) ||
2019 (identity_len == WSC_ID_REGISTRAR_LEN &&
2020 os_memcmp(identity, WSC_ID_REGISTRAR,
2021 WSC_ID_REGISTRAR_LEN) == 0))) {
2022 wpa_printf(MSG_DEBUG, "WPS: WLAN_STA_MAYBE_WPS -> "
2023 "WLAN_STA_WPS");
2024 sta->flags |= WLAN_STA_WPS;
2025 }
2026 }
2027 #endif /* CONFIG_WPS */
2028
2029 ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
2030 }
2031
2032
ieee802_1x_aaa_send(void * ctx,void * sta_ctx,const u8 * data,size_t datalen)2033 static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
2034 const u8 *data, size_t datalen)
2035 {
2036 #ifndef CONFIG_NO_RADIUS
2037 struct hostapd_data *hapd = ctx;
2038 struct sta_info *sta = sta_ctx;
2039
2040 ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
2041 #endif /* CONFIG_NO_RADIUS */
2042 }
2043
2044
_ieee802_1x_finished(void * ctx,void * sta_ctx,int success,int preauth,int remediation)2045 static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
2046 int preauth, int remediation)
2047 {
2048 struct hostapd_data *hapd = ctx;
2049 struct sta_info *sta = sta_ctx;
2050 if (preauth)
2051 rsn_preauth_finished(hapd, sta, success);
2052 else
2053 ieee802_1x_finished(hapd, sta, success, remediation);
2054 }
2055
2056
ieee802_1x_get_eap_user(void * ctx,const u8 * identity,size_t identity_len,int phase2,struct eap_user * user)2057 static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
2058 size_t identity_len, int phase2,
2059 struct eap_user *user)
2060 {
2061 struct hostapd_data *hapd = ctx;
2062 const struct hostapd_eap_user *eap_user;
2063 int i;
2064 int rv = -1;
2065
2066 eap_user = hostapd_get_eap_user(hapd, identity, identity_len, phase2);
2067 if (eap_user == NULL)
2068 goto out;
2069
2070 os_memset(user, 0, sizeof(*user));
2071 user->phase2 = phase2;
2072 for (i = 0; i < EAP_MAX_METHODS; i++) {
2073 user->methods[i].vendor = eap_user->methods[i].vendor;
2074 user->methods[i].method = eap_user->methods[i].method;
2075 }
2076
2077 if (eap_user->password) {
2078 user->password = os_memdup(eap_user->password,
2079 eap_user->password_len);
2080 if (user->password == NULL)
2081 goto out;
2082 user->password_len = eap_user->password_len;
2083 user->password_hash = eap_user->password_hash;
2084 }
2085 user->force_version = eap_user->force_version;
2086 user->macacl = eap_user->macacl;
2087 user->ttls_auth = eap_user->ttls_auth;
2088 user->remediation = eap_user->remediation;
2089 rv = 0;
2090
2091 out:
2092 if (rv)
2093 wpa_printf(MSG_DEBUG, "%s: Failed to find user", __func__);
2094
2095 return rv;
2096 }
2097
2098
ieee802_1x_sta_entry_alive(void * ctx,const u8 * addr)2099 static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
2100 {
2101 struct hostapd_data *hapd = ctx;
2102 struct sta_info *sta;
2103 sta = ap_get_sta(hapd, addr);
2104 if (sta == NULL || sta->eapol_sm == NULL)
2105 return 0;
2106 return 1;
2107 }
2108
2109
ieee802_1x_logger(void * ctx,const u8 * addr,eapol_logger_level level,const char * txt)2110 static void ieee802_1x_logger(void *ctx, const u8 *addr,
2111 eapol_logger_level level, const char *txt)
2112 {
2113 #ifndef CONFIG_NO_HOSTAPD_LOGGER
2114 struct hostapd_data *hapd = ctx;
2115 int hlevel;
2116
2117 switch (level) {
2118 case EAPOL_LOGGER_WARNING:
2119 hlevel = HOSTAPD_LEVEL_WARNING;
2120 break;
2121 case EAPOL_LOGGER_INFO:
2122 hlevel = HOSTAPD_LEVEL_INFO;
2123 break;
2124 case EAPOL_LOGGER_DEBUG:
2125 default:
2126 hlevel = HOSTAPD_LEVEL_DEBUG;
2127 break;
2128 }
2129
2130 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
2131 txt);
2132 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
2133 }
2134
2135
ieee802_1x_set_port_authorized(void * ctx,void * sta_ctx,int authorized)2136 static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
2137 int authorized)
2138 {
2139 struct hostapd_data *hapd = ctx;
2140 struct sta_info *sta = sta_ctx;
2141 ieee802_1x_set_sta_authorized(hapd, sta, authorized);
2142 }
2143
2144
_ieee802_1x_abort_auth(void * ctx,void * sta_ctx)2145 static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
2146 {
2147 struct hostapd_data *hapd = ctx;
2148 struct sta_info *sta = sta_ctx;
2149 ieee802_1x_abort_auth(hapd, sta);
2150 }
2151
2152
_ieee802_1x_tx_key(void * ctx,void * sta_ctx)2153 static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
2154 {
2155 #ifndef CONFIG_FIPS
2156 #ifndef CONFIG_NO_RC4
2157 struct hostapd_data *hapd = ctx;
2158 struct sta_info *sta = sta_ctx;
2159 ieee802_1x_tx_key(hapd, sta);
2160 #endif /* CONFIG_NO_RC4 */
2161 #endif /* CONFIG_FIPS */
2162 }
2163
2164
ieee802_1x_eapol_event(void * ctx,void * sta_ctx,enum eapol_event type)2165 static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
2166 enum eapol_event type)
2167 {
2168 /* struct hostapd_data *hapd = ctx; */
2169 struct sta_info *sta = sta_ctx;
2170 switch (type) {
2171 case EAPOL_AUTH_SM_CHANGE:
2172 wpa_auth_sm_notify(sta->wpa_sm);
2173 break;
2174 case EAPOL_AUTH_REAUTHENTICATE:
2175 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
2176 break;
2177 }
2178 }
2179
2180
2181 #ifdef CONFIG_ERP
2182
2183 static struct eap_server_erp_key *
ieee802_1x_erp_get_key(void * ctx,const char * keyname)2184 ieee802_1x_erp_get_key(void *ctx, const char *keyname)
2185 {
2186 struct hostapd_data *hapd = ctx;
2187 struct eap_server_erp_key *erp;
2188
2189 dl_list_for_each(erp, &hapd->erp_keys, struct eap_server_erp_key,
2190 list) {
2191 if (os_strcmp(erp->keyname_nai, keyname) == 0)
2192 return erp;
2193 }
2194
2195 return NULL;
2196 }
2197
2198
ieee802_1x_erp_add_key(void * ctx,struct eap_server_erp_key * erp)2199 static int ieee802_1x_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
2200 {
2201 struct hostapd_data *hapd = ctx;
2202
2203 dl_list_add(&hapd->erp_keys, &erp->list);
2204 return 0;
2205 }
2206
2207 #endif /* CONFIG_ERP */
2208
2209
ieee802_1x_init(struct hostapd_data * hapd)2210 int ieee802_1x_init(struct hostapd_data *hapd)
2211 {
2212 int i;
2213 struct eapol_auth_config conf;
2214 struct eapol_auth_cb cb;
2215
2216 dl_list_init(&hapd->erp_keys);
2217
2218 os_memset(&conf, 0, sizeof(conf));
2219 conf.ctx = hapd;
2220 conf.eap_reauth_period = hapd->conf->eap_reauth_period;
2221 conf.wpa = hapd->conf->wpa;
2222 conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
2223 conf.eap_server = hapd->conf->eap_server;
2224 conf.ssl_ctx = hapd->ssl_ctx;
2225 conf.msg_ctx = hapd->msg_ctx;
2226 conf.eap_sim_db_priv = hapd->eap_sim_db_priv;
2227 conf.eap_req_id_text = hapd->conf->eap_req_id_text;
2228 conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
2229 conf.erp_send_reauth_start = hapd->conf->erp_send_reauth_start;
2230 conf.erp_domain = hapd->conf->erp_domain;
2231 conf.erp = hapd->conf->eap_server_erp;
2232 conf.tls_session_lifetime = hapd->conf->tls_session_lifetime;
2233 conf.tls_flags = hapd->conf->tls_flags;
2234 conf.pac_opaque_encr_key = hapd->conf->pac_opaque_encr_key;
2235 conf.eap_fast_a_id = hapd->conf->eap_fast_a_id;
2236 conf.eap_fast_a_id_len = hapd->conf->eap_fast_a_id_len;
2237 conf.eap_fast_a_id_info = hapd->conf->eap_fast_a_id_info;
2238 conf.eap_fast_prov = hapd->conf->eap_fast_prov;
2239 conf.pac_key_lifetime = hapd->conf->pac_key_lifetime;
2240 conf.pac_key_refresh_time = hapd->conf->pac_key_refresh_time;
2241 conf.eap_sim_aka_result_ind = hapd->conf->eap_sim_aka_result_ind;
2242 conf.tnc = hapd->conf->tnc;
2243 conf.wps = hapd->wps;
2244 conf.fragment_size = hapd->conf->fragment_size;
2245 conf.pwd_group = hapd->conf->pwd_group;
2246 conf.pbc_in_m1 = hapd->conf->pbc_in_m1;
2247 if (hapd->conf->server_id) {
2248 conf.server_id = (const u8 *) hapd->conf->server_id;
2249 conf.server_id_len = os_strlen(hapd->conf->server_id);
2250 } else {
2251 conf.server_id = (const u8 *) "hostapd";
2252 conf.server_id_len = 7;
2253 }
2254
2255 os_memset(&cb, 0, sizeof(cb));
2256 cb.eapol_send = ieee802_1x_eapol_send;
2257 cb.aaa_send = ieee802_1x_aaa_send;
2258 cb.finished = _ieee802_1x_finished;
2259 cb.get_eap_user = ieee802_1x_get_eap_user;
2260 cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
2261 cb.logger = ieee802_1x_logger;
2262 cb.set_port_authorized = ieee802_1x_set_port_authorized;
2263 cb.abort_auth = _ieee802_1x_abort_auth;
2264 cb.tx_key = _ieee802_1x_tx_key;
2265 cb.eapol_event = ieee802_1x_eapol_event;
2266 #ifdef CONFIG_ERP
2267 cb.erp_get_key = ieee802_1x_erp_get_key;
2268 cb.erp_add_key = ieee802_1x_erp_add_key;
2269 #endif /* CONFIG_ERP */
2270
2271 hapd->eapol_auth = eapol_auth_init(&conf, &cb);
2272 if (hapd->eapol_auth == NULL)
2273 return -1;
2274
2275 if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
2276 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
2277 return -1;
2278
2279 #ifndef CONFIG_NO_RADIUS
2280 if (radius_client_register(hapd->radius, RADIUS_AUTH,
2281 ieee802_1x_receive_auth, hapd))
2282 return -1;
2283 #endif /* CONFIG_NO_RADIUS */
2284
2285 if (hapd->conf->default_wep_key_len) {
2286 for (i = 0; i < 4; i++)
2287 hostapd_drv_set_key(hapd->conf->iface, hapd,
2288 WPA_ALG_NONE, NULL, i, 0, NULL, 0,
2289 NULL, 0);
2290
2291 ieee802_1x_rekey(hapd, NULL);
2292
2293 if (hapd->eapol_auth->default_wep_key == NULL)
2294 return -1;
2295 }
2296
2297 return 0;
2298 }
2299
2300
ieee802_1x_erp_flush(struct hostapd_data * hapd)2301 void ieee802_1x_erp_flush(struct hostapd_data *hapd)
2302 {
2303 struct eap_server_erp_key *erp;
2304
2305 while ((erp = dl_list_first(&hapd->erp_keys, struct eap_server_erp_key,
2306 list)) != NULL) {
2307 dl_list_del(&erp->list);
2308 bin_clear_free(erp, sizeof(*erp));
2309 }
2310 }
2311
2312
ieee802_1x_deinit(struct hostapd_data * hapd)2313 void ieee802_1x_deinit(struct hostapd_data *hapd)
2314 {
2315 eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
2316
2317 if (hapd->driver && hapd->drv_priv &&
2318 (hapd->conf->ieee802_1x || hapd->conf->wpa))
2319 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
2320
2321 eapol_auth_deinit(hapd->eapol_auth);
2322 hapd->eapol_auth = NULL;
2323
2324 ieee802_1x_erp_flush(hapd);
2325 }
2326
2327
ieee802_1x_tx_status(struct hostapd_data * hapd,struct sta_info * sta,const u8 * buf,size_t len,int ack)2328 int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2329 const u8 *buf, size_t len, int ack)
2330 {
2331 struct ieee80211_hdr *hdr;
2332 u8 *pos;
2333 const unsigned char rfc1042_hdr[ETH_ALEN] =
2334 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
2335
2336 if (sta == NULL)
2337 return -1;
2338 if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2)
2339 return 0;
2340
2341 hdr = (struct ieee80211_hdr *) buf;
2342 pos = (u8 *) (hdr + 1);
2343 if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
2344 return 0;
2345 pos += sizeof(rfc1042_hdr);
2346 if (WPA_GET_BE16(pos) != ETH_P_PAE)
2347 return 0;
2348 pos += 2;
2349
2350 return ieee802_1x_eapol_tx_status(hapd, sta, pos, buf + len - pos,
2351 ack);
2352 }
2353
2354
ieee802_1x_eapol_tx_status(struct hostapd_data * hapd,struct sta_info * sta,const u8 * buf,int len,int ack)2355 int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2356 const u8 *buf, int len, int ack)
2357 {
2358 const struct ieee802_1x_hdr *xhdr =
2359 (const struct ieee802_1x_hdr *) buf;
2360 const u8 *pos = buf + sizeof(*xhdr);
2361 struct ieee802_1x_eapol_key *key;
2362
2363 if (len < (int) sizeof(*xhdr))
2364 return 0;
2365 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR " TX status - version=%d "
2366 "type=%d length=%d - ack=%d",
2367 MAC2STR(sta->addr), xhdr->version, xhdr->type,
2368 be_to_host16(xhdr->length), ack);
2369
2370 #ifdef CONFIG_WPS
2371 if (xhdr->type == IEEE802_1X_TYPE_EAP_PACKET && ack &&
2372 (sta->flags & WLAN_STA_WPS) &&
2373 ap_sta_pending_delayed_1x_auth_fail_disconnect(hapd, sta)) {
2374 wpa_printf(MSG_DEBUG,
2375 "WPS: Indicate EAP completion on ACK for EAP-Failure");
2376 hostapd_wps_eap_completed(hapd);
2377 }
2378 #endif /* CONFIG_WPS */
2379
2380 if (xhdr->type != IEEE802_1X_TYPE_EAPOL_KEY)
2381 return 0;
2382
2383 if (pos + sizeof(struct wpa_eapol_key) <= buf + len) {
2384 const struct wpa_eapol_key *wpa;
2385 wpa = (const struct wpa_eapol_key *) pos;
2386 if (wpa->type == EAPOL_KEY_TYPE_RSN ||
2387 wpa->type == EAPOL_KEY_TYPE_WPA)
2388 wpa_auth_eapol_key_tx_status(hapd->wpa_auth,
2389 sta->wpa_sm, ack);
2390 }
2391
2392 /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
2393 * or Authenticator state machines, but EAPOL-Key packets are not
2394 * retransmitted in case of failure. Try to re-send failed EAPOL-Key
2395 * packets couple of times because otherwise STA keys become
2396 * unsynchronized with AP. */
2397 if (!ack && pos + sizeof(*key) <= buf + len) {
2398 key = (struct ieee802_1x_eapol_key *) pos;
2399 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
2400 HOSTAPD_LEVEL_DEBUG, "did not Ack EAPOL-Key "
2401 "frame (%scast index=%d)",
2402 key->key_index & BIT(7) ? "uni" : "broad",
2403 key->key_index & ~BIT(7));
2404 /* TODO: re-send EAPOL-Key couple of times (with short delay
2405 * between them?). If all attempt fail, report error and
2406 * deauthenticate STA so that it will get new keys when
2407 * authenticating again (e.g., after returning in range).
2408 * Separate limit/transmit state needed both for unicast and
2409 * broadcast keys(?) */
2410 }
2411 /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
2412 * to here and change the key only if the EAPOL-Key packet was Acked.
2413 */
2414
2415 return 1;
2416 }
2417
2418
ieee802_1x_get_identity(struct eapol_state_machine * sm,size_t * len)2419 u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
2420 {
2421 if (sm == NULL || sm->identity == NULL)
2422 return NULL;
2423
2424 *len = sm->identity_len;
2425 return sm->identity;
2426 }
2427
2428
ieee802_1x_get_radius_class(struct eapol_state_machine * sm,size_t * len,int idx)2429 u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
2430 int idx)
2431 {
2432 if (sm == NULL || sm->radius_class.attr == NULL ||
2433 idx >= (int) sm->radius_class.count)
2434 return NULL;
2435
2436 *len = sm->radius_class.attr[idx].len;
2437 return sm->radius_class.attr[idx].data;
2438 }
2439
2440
ieee802_1x_get_radius_cui(struct eapol_state_machine * sm)2441 struct wpabuf * ieee802_1x_get_radius_cui(struct eapol_state_machine *sm)
2442 {
2443 if (sm == NULL)
2444 return NULL;
2445 return sm->radius_cui;
2446 }
2447
2448
ieee802_1x_get_key(struct eapol_state_machine * sm,size_t * len)2449 const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
2450 {
2451 *len = 0;
2452 if (sm == NULL)
2453 return NULL;
2454
2455 *len = sm->eap_if->eapKeyDataLen;
2456 return sm->eap_if->eapKeyData;
2457 }
2458
2459
ieee802_1x_notify_port_enabled(struct eapol_state_machine * sm,int enabled)2460 void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
2461 int enabled)
2462 {
2463 if (sm == NULL)
2464 return;
2465 sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
2466 eapol_auth_step(sm);
2467 }
2468
2469
ieee802_1x_notify_port_valid(struct eapol_state_machine * sm,int valid)2470 void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
2471 int valid)
2472 {
2473 if (sm == NULL)
2474 return;
2475 sm->portValid = valid ? TRUE : FALSE;
2476 eapol_auth_step(sm);
2477 }
2478
2479
ieee802_1x_notify_pre_auth(struct eapol_state_machine * sm,int pre_auth)2480 void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
2481 {
2482 if (sm == NULL)
2483 return;
2484 if (pre_auth)
2485 sm->flags |= EAPOL_SM_PREAUTH;
2486 else
2487 sm->flags &= ~EAPOL_SM_PREAUTH;
2488 }
2489
2490
bool_txt(Boolean val)2491 static const char * bool_txt(Boolean val)
2492 {
2493 return val ? "TRUE" : "FALSE";
2494 }
2495
2496
ieee802_1x_get_mib(struct hostapd_data * hapd,char * buf,size_t buflen)2497 int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2498 {
2499 /* TODO */
2500 return 0;
2501 }
2502
2503
ieee802_1x_get_mib_sta(struct hostapd_data * hapd,struct sta_info * sta,char * buf,size_t buflen)2504 int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2505 char *buf, size_t buflen)
2506 {
2507 int len = 0, ret;
2508 struct eapol_state_machine *sm = sta->eapol_sm;
2509 struct os_reltime diff;
2510 const char *name1;
2511 const char *name2;
2512
2513 if (sm == NULL)
2514 return 0;
2515
2516 ret = os_snprintf(buf + len, buflen - len,
2517 "dot1xPaePortNumber=%d\n"
2518 "dot1xPaePortProtocolVersion=%d\n"
2519 "dot1xPaePortCapabilities=1\n"
2520 "dot1xPaePortInitialize=%d\n"
2521 "dot1xPaePortReauthenticate=FALSE\n",
2522 sta->aid,
2523 EAPOL_VERSION,
2524 sm->initialize);
2525 if (os_snprintf_error(buflen - len, ret))
2526 return len;
2527 len += ret;
2528
2529 /* dot1xAuthConfigTable */
2530 ret = os_snprintf(buf + len, buflen - len,
2531 "dot1xAuthPaeState=%d\n"
2532 "dot1xAuthBackendAuthState=%d\n"
2533 "dot1xAuthAdminControlledDirections=%d\n"
2534 "dot1xAuthOperControlledDirections=%d\n"
2535 "dot1xAuthAuthControlledPortStatus=%d\n"
2536 "dot1xAuthAuthControlledPortControl=%d\n"
2537 "dot1xAuthQuietPeriod=%u\n"
2538 "dot1xAuthServerTimeout=%u\n"
2539 "dot1xAuthReAuthPeriod=%u\n"
2540 "dot1xAuthReAuthEnabled=%s\n"
2541 "dot1xAuthKeyTxEnabled=%s\n",
2542 sm->auth_pae_state + 1,
2543 sm->be_auth_state + 1,
2544 sm->adminControlledDirections,
2545 sm->operControlledDirections,
2546 sm->authPortStatus,
2547 sm->portControl,
2548 sm->quietPeriod,
2549 sm->serverTimeout,
2550 sm->reAuthPeriod,
2551 bool_txt(sm->reAuthEnabled),
2552 bool_txt(sm->keyTxEnabled));
2553 if (os_snprintf_error(buflen - len, ret))
2554 return len;
2555 len += ret;
2556
2557 /* dot1xAuthStatsTable */
2558 ret = os_snprintf(buf + len, buflen - len,
2559 "dot1xAuthEapolFramesRx=%u\n"
2560 "dot1xAuthEapolFramesTx=%u\n"
2561 "dot1xAuthEapolStartFramesRx=%u\n"
2562 "dot1xAuthEapolLogoffFramesRx=%u\n"
2563 "dot1xAuthEapolRespIdFramesRx=%u\n"
2564 "dot1xAuthEapolRespFramesRx=%u\n"
2565 "dot1xAuthEapolReqIdFramesTx=%u\n"
2566 "dot1xAuthEapolReqFramesTx=%u\n"
2567 "dot1xAuthInvalidEapolFramesRx=%u\n"
2568 "dot1xAuthEapLengthErrorFramesRx=%u\n"
2569 "dot1xAuthLastEapolFrameVersion=%u\n"
2570 "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
2571 sm->dot1xAuthEapolFramesRx,
2572 sm->dot1xAuthEapolFramesTx,
2573 sm->dot1xAuthEapolStartFramesRx,
2574 sm->dot1xAuthEapolLogoffFramesRx,
2575 sm->dot1xAuthEapolRespIdFramesRx,
2576 sm->dot1xAuthEapolRespFramesRx,
2577 sm->dot1xAuthEapolReqIdFramesTx,
2578 sm->dot1xAuthEapolReqFramesTx,
2579 sm->dot1xAuthInvalidEapolFramesRx,
2580 sm->dot1xAuthEapLengthErrorFramesRx,
2581 sm->dot1xAuthLastEapolFrameVersion,
2582 MAC2STR(sm->addr));
2583 if (os_snprintf_error(buflen - len, ret))
2584 return len;
2585 len += ret;
2586
2587 /* dot1xAuthDiagTable */
2588 ret = os_snprintf(buf + len, buflen - len,
2589 "dot1xAuthEntersConnecting=%u\n"
2590 "dot1xAuthEapLogoffsWhileConnecting=%u\n"
2591 "dot1xAuthEntersAuthenticating=%u\n"
2592 "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
2593 "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
2594 "dot1xAuthAuthFailWhileAuthenticating=%u\n"
2595 "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
2596 "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
2597 "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
2598 "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
2599 "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
2600 "dot1xAuthBackendResponses=%u\n"
2601 "dot1xAuthBackendAccessChallenges=%u\n"
2602 "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
2603 "dot1xAuthBackendAuthSuccesses=%u\n"
2604 "dot1xAuthBackendAuthFails=%u\n",
2605 sm->authEntersConnecting,
2606 sm->authEapLogoffsWhileConnecting,
2607 sm->authEntersAuthenticating,
2608 sm->authAuthSuccessesWhileAuthenticating,
2609 sm->authAuthTimeoutsWhileAuthenticating,
2610 sm->authAuthFailWhileAuthenticating,
2611 sm->authAuthEapStartsWhileAuthenticating,
2612 sm->authAuthEapLogoffWhileAuthenticating,
2613 sm->authAuthReauthsWhileAuthenticated,
2614 sm->authAuthEapStartsWhileAuthenticated,
2615 sm->authAuthEapLogoffWhileAuthenticated,
2616 sm->backendResponses,
2617 sm->backendAccessChallenges,
2618 sm->backendOtherRequestsToSupplicant,
2619 sm->backendAuthSuccesses,
2620 sm->backendAuthFails);
2621 if (os_snprintf_error(buflen - len, ret))
2622 return len;
2623 len += ret;
2624
2625 /* dot1xAuthSessionStatsTable */
2626 os_reltime_age(&sta->acct_session_start, &diff);
2627 ret = os_snprintf(buf + len, buflen - len,
2628 /* TODO: dot1xAuthSessionOctetsRx */
2629 /* TODO: dot1xAuthSessionOctetsTx */
2630 /* TODO: dot1xAuthSessionFramesRx */
2631 /* TODO: dot1xAuthSessionFramesTx */
2632 "dot1xAuthSessionId=%016llX\n"
2633 "dot1xAuthSessionAuthenticMethod=%d\n"
2634 "dot1xAuthSessionTime=%u\n"
2635 "dot1xAuthSessionTerminateCause=999\n"
2636 "dot1xAuthSessionUserName=%s\n",
2637 (unsigned long long) sta->acct_session_id,
2638 (wpa_key_mgmt_wpa_ieee8021x(
2639 wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
2640 1 : 2,
2641 (unsigned int) diff.sec,
2642 sm->identity);
2643 if (os_snprintf_error(buflen - len, ret))
2644 return len;
2645 len += ret;
2646
2647 if (sm->acct_multi_session_id) {
2648 ret = os_snprintf(buf + len, buflen - len,
2649 "authMultiSessionId=%016llX\n",
2650 (unsigned long long)
2651 sm->acct_multi_session_id);
2652 if (os_snprintf_error(buflen - len, ret))
2653 return len;
2654 len += ret;
2655 }
2656
2657 name1 = eap_server_get_name(0, sm->eap_type_authsrv);
2658 name2 = eap_server_get_name(0, sm->eap_type_supp);
2659 ret = os_snprintf(buf + len, buflen - len,
2660 "last_eap_type_as=%d (%s)\n"
2661 "last_eap_type_sta=%d (%s)\n",
2662 sm->eap_type_authsrv, name1,
2663 sm->eap_type_supp, name2);
2664 if (os_snprintf_error(buflen - len, ret))
2665 return len;
2666 len += ret;
2667
2668 return len;
2669 }
2670
2671
2672 #ifdef CONFIG_HS20
ieee802_1x_wnm_notif_send(void * eloop_ctx,void * timeout_ctx)2673 static void ieee802_1x_wnm_notif_send(void *eloop_ctx, void *timeout_ctx)
2674 {
2675 struct hostapd_data *hapd = eloop_ctx;
2676 struct sta_info *sta = timeout_ctx;
2677
2678 if (sta->remediation) {
2679 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2680 MACSTR " to indicate Subscription Remediation",
2681 MAC2STR(sta->addr));
2682 hs20_send_wnm_notification(hapd, sta->addr,
2683 sta->remediation_method,
2684 sta->remediation_url);
2685 os_free(sta->remediation_url);
2686 sta->remediation_url = NULL;
2687 }
2688
2689 if (sta->hs20_deauth_req) {
2690 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2691 MACSTR " to indicate imminent deauthentication",
2692 MAC2STR(sta->addr));
2693 hs20_send_wnm_notification_deauth_req(hapd, sta->addr,
2694 sta->hs20_deauth_req);
2695 }
2696 }
2697 #endif /* CONFIG_HS20 */
2698
2699
ieee802_1x_finished(struct hostapd_data * hapd,struct sta_info * sta,int success,int remediation)2700 static void ieee802_1x_finished(struct hostapd_data *hapd,
2701 struct sta_info *sta, int success,
2702 int remediation)
2703 {
2704 const u8 *key;
2705 size_t len;
2706 /* TODO: get PMKLifetime from WPA parameters */
2707 static const int dot11RSNAConfigPMKLifetime = 43200;
2708 unsigned int session_timeout;
2709
2710 #ifdef CONFIG_HS20
2711 if (remediation && !sta->remediation) {
2712 sta->remediation = 1;
2713 os_free(sta->remediation_url);
2714 sta->remediation_url =
2715 os_strdup(hapd->conf->subscr_remediation_url);
2716 sta->remediation_method = 1; /* SOAP-XML SPP */
2717 }
2718
2719 if (success && (sta->remediation || sta->hs20_deauth_req)) {
2720 wpa_printf(MSG_DEBUG, "HS 2.0: Schedule WNM-Notification to "
2721 MACSTR " in 100 ms", MAC2STR(sta->addr));
2722 eloop_cancel_timeout(ieee802_1x_wnm_notif_send, hapd, sta);
2723 eloop_register_timeout(0, 100000, ieee802_1x_wnm_notif_send,
2724 hapd, sta);
2725 }
2726 #endif /* CONFIG_HS20 */
2727
2728 key = ieee802_1x_get_key(sta->eapol_sm, &len);
2729 if (sta->session_timeout_set)
2730 session_timeout = sta->session_timeout;
2731 else
2732 session_timeout = dot11RSNAConfigPMKLifetime;
2733 if (success && key && len >= PMK_LEN && !sta->remediation &&
2734 !sta->hs20_deauth_requested &&
2735 wpa_auth_pmksa_add(sta->wpa_sm, key, len, session_timeout,
2736 sta->eapol_sm) == 0) {
2737 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
2738 HOSTAPD_LEVEL_DEBUG,
2739 "Added PMKSA cache entry (IEEE 802.1X)");
2740 }
2741
2742 if (!success) {
2743 /*
2744 * Many devices require deauthentication after WPS provisioning
2745 * and some may not be be able to do that themselves, so
2746 * disconnect the client here. In addition, this may also
2747 * benefit IEEE 802.1X/EAPOL authentication cases, too since
2748 * the EAPOL PAE state machine would remain in HELD state for
2749 * considerable amount of time and some EAP methods, like
2750 * EAP-FAST with anonymous provisioning, may require another
2751 * EAPOL authentication to be started to complete connection.
2752 */
2753 ap_sta_delayed_1x_auth_fail_disconnect(hapd, sta);
2754 }
2755 }
2756