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[thirdparty/hostap.git] / src / ap / ieee802_1x.c
1 /*
2 * hostapd / IEEE 802.1X-2004 Authenticator
3 * Copyright (c) 2002-2019, 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 #ifdef CONFIG_SQLITE
11 #include <sqlite3.h>
12 #endif /* CONFIG_SQLITE */
13
14 #include "utils/common.h"
15 #include "utils/eloop.h"
16 #include "crypto/md5.h"
17 #include "crypto/crypto.h"
18 #include "crypto/random.h"
19 #include "common/ieee802_11_defs.h"
20 #include "radius/radius.h"
21 #include "radius/radius_client.h"
22 #include "eap_server/eap.h"
23 #include "eap_common/eap_wsc_common.h"
24 #include "eapol_auth/eapol_auth_sm.h"
25 #include "eapol_auth/eapol_auth_sm_i.h"
26 #include "p2p/p2p.h"
27 #include "hostapd.h"
28 #include "accounting.h"
29 #include "sta_info.h"
30 #include "wpa_auth.h"
31 #include "preauth_auth.h"
32 #include "pmksa_cache_auth.h"
33 #include "ap_config.h"
34 #include "ap_drv_ops.h"
35 #include "wps_hostapd.h"
36 #include "hs20.h"
37 /* FIX: Not really a good thing to require ieee802_11.h here.. (FILS) */
38 #include "ieee802_11.h"
39 #include "ieee802_1x.h"
40 #include "wpa_auth_kay.h"
41
42
43 #ifdef CONFIG_HS20
44 static void ieee802_1x_wnm_notif_send(void *eloop_ctx, void *timeout_ctx);
45 #endif /* CONFIG_HS20 */
46 static void ieee802_1x_finished(struct hostapd_data *hapd,
47 struct sta_info *sta, int success,
48 int remediation);
49
50
51 static void ieee802_1x_send(struct hostapd_data *hapd, struct sta_info *sta,
52 u8 type, const u8 *data, size_t datalen)
53 {
54 u8 *buf;
55 struct ieee802_1x_hdr *xhdr;
56 size_t len;
57 int encrypt = 0;
58
59 len = sizeof(*xhdr) + datalen;
60 buf = os_zalloc(len);
61 if (!buf) {
62 wpa_printf(MSG_ERROR, "malloc() failed for %s(len=%lu)",
63 __func__, (unsigned long) len);
64 return;
65 }
66
67 xhdr = (struct ieee802_1x_hdr *) buf;
68 xhdr->version = hapd->conf->eapol_version;
69 #ifdef CONFIG_MACSEC
70 if (xhdr->version > 2 && hapd->conf->macsec_policy == 0)
71 xhdr->version = 2;
72 #endif /* CONFIG_MACSEC */
73 xhdr->type = type;
74 xhdr->length = host_to_be16(datalen);
75
76 if (datalen > 0 && data != NULL)
77 os_memcpy(xhdr + 1, data, datalen);
78
79 if (wpa_auth_pairwise_set(sta->wpa_sm))
80 encrypt = 1;
81 #ifdef CONFIG_TESTING_OPTIONS
82 if (hapd->ext_eapol_frame_io) {
83 size_t hex_len = 2 * len + 1;
84 char *hex = os_malloc(hex_len);
85
86 if (hex) {
87 wpa_snprintf_hex(hex, hex_len, buf, len);
88 wpa_msg(hapd->msg_ctx, MSG_INFO,
89 "EAPOL-TX " MACSTR " %s",
90 MAC2STR(sta->addr), hex);
91 os_free(hex);
92 }
93 } else
94 #endif /* CONFIG_TESTING_OPTIONS */
95 if (sta->flags & WLAN_STA_PREAUTH) {
96 rsn_preauth_send(hapd, sta, buf, len);
97 } else {
98 hostapd_drv_hapd_send_eapol(
99 hapd, sta->addr, buf, len,
100 encrypt, hostapd_sta_flags_to_drv(sta->flags));
101 }
102
103 os_free(buf);
104 }
105
106
107 void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
108 struct sta_info *sta, int authorized)
109 {
110 int res;
111
112 if (sta->flags & WLAN_STA_PREAUTH)
113 return;
114
115 if (authorized) {
116 ap_sta_set_authorized(hapd, sta, 1);
117 res = hostapd_set_authorized(hapd, sta, 1);
118 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
119 HOSTAPD_LEVEL_DEBUG, "authorizing port");
120 } else {
121 ap_sta_set_authorized(hapd, sta, 0);
122 res = hostapd_set_authorized(hapd, sta, 0);
123 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
124 HOSTAPD_LEVEL_DEBUG, "unauthorizing port");
125 }
126
127 if (res && errno != ENOENT) {
128 wpa_printf(MSG_DEBUG, "Could not set station " MACSTR
129 " flags for kernel driver (errno=%d).",
130 MAC2STR(sta->addr), errno);
131 }
132
133 if (authorized) {
134 os_get_reltime(&sta->connected_time);
135 accounting_sta_start(hapd, sta);
136 }
137 }
138
139
140 #ifndef CONFIG_FIPS
141 #ifndef CONFIG_NO_RC4
142
143 static void ieee802_1x_tx_key_one(struct hostapd_data *hapd,
144 struct sta_info *sta,
145 int idx, int broadcast,
146 u8 *key_data, size_t key_len)
147 {
148 u8 *buf, *ekey;
149 struct ieee802_1x_hdr *hdr;
150 struct ieee802_1x_eapol_key *key;
151 size_t len, ekey_len;
152 struct eapol_state_machine *sm = sta->eapol_sm;
153
154 if (!sm)
155 return;
156
157 len = sizeof(*key) + key_len;
158 buf = os_zalloc(sizeof(*hdr) + len);
159 if (!buf)
160 return;
161
162 hdr = (struct ieee802_1x_hdr *) buf;
163 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
164 key->type = EAPOL_KEY_TYPE_RC4;
165 WPA_PUT_BE16(key->key_length, key_len);
166 wpa_get_ntp_timestamp(key->replay_counter);
167 if (os_memcmp(key->replay_counter,
168 hapd->last_1x_eapol_key_replay_counter,
169 IEEE8021X_REPLAY_COUNTER_LEN) <= 0) {
170 /* NTP timestamp did not increment from last EAPOL-Key frame;
171 * use previously used value + 1 instead. */
172 inc_byte_array(hapd->last_1x_eapol_key_replay_counter,
173 IEEE8021X_REPLAY_COUNTER_LEN);
174 os_memcpy(key->replay_counter,
175 hapd->last_1x_eapol_key_replay_counter,
176 IEEE8021X_REPLAY_COUNTER_LEN);
177 } else {
178 os_memcpy(hapd->last_1x_eapol_key_replay_counter,
179 key->replay_counter,
180 IEEE8021X_REPLAY_COUNTER_LEN);
181 }
182
183 if (random_get_bytes(key->key_iv, sizeof(key->key_iv))) {
184 wpa_printf(MSG_ERROR, "Could not get random numbers");
185 os_free(buf);
186 return;
187 }
188
189 key->key_index = idx | (broadcast ? 0 : BIT(7));
190 if (hapd->conf->eapol_key_index_workaround) {
191 /* According to some information, WinXP Supplicant seems to
192 * interpret bit7 as an indication whether the key is to be
193 * activated, so make it possible to enable workaround that
194 * sets this bit for all keys. */
195 key->key_index |= BIT(7);
196 }
197
198 /* Key is encrypted using "Key-IV + MSK[0..31]" as the RC4-key and
199 * MSK[32..63] is used to sign the message. */
200 if (!sm->eap_if->eapKeyData || sm->eap_if->eapKeyDataLen < 64) {
201 wpa_printf(MSG_ERROR,
202 "No eapKeyData available for encrypting and signing EAPOL-Key");
203 os_free(buf);
204 return;
205 }
206 os_memcpy((u8 *) (key + 1), key_data, key_len);
207 ekey_len = sizeof(key->key_iv) + 32;
208 ekey = os_malloc(ekey_len);
209 if (!ekey) {
210 wpa_printf(MSG_ERROR, "Could not encrypt key");
211 os_free(buf);
212 return;
213 }
214 os_memcpy(ekey, key->key_iv, sizeof(key->key_iv));
215 os_memcpy(ekey + sizeof(key->key_iv), sm->eap_if->eapKeyData, 32);
216 rc4_skip(ekey, ekey_len, 0, (u8 *) (key + 1), key_len);
217 os_free(ekey);
218
219 /* This header is needed here for HMAC-MD5, but it will be regenerated
220 * in ieee802_1x_send() */
221 hdr->version = hapd->conf->eapol_version;
222 #ifdef CONFIG_MACSEC
223 if (hdr->version > 2)
224 hdr->version = 2;
225 #endif /* CONFIG_MACSEC */
226 hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
227 hdr->length = host_to_be16(len);
228 hmac_md5(sm->eap_if->eapKeyData + 32, 32, buf, sizeof(*hdr) + len,
229 key->key_signature);
230
231 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key to " MACSTR
232 " (%s index=%d)", MAC2STR(sm->addr),
233 broadcast ? "broadcast" : "unicast", idx);
234 ieee802_1x_send(hapd, sta, IEEE802_1X_TYPE_EAPOL_KEY, (u8 *) key, len);
235 if (sta->eapol_sm)
236 sta->eapol_sm->dot1xAuthEapolFramesTx++;
237 os_free(buf);
238 }
239
240
241 static void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta)
242 {
243 struct eapol_authenticator *eapol = hapd->eapol_auth;
244 struct eapol_state_machine *sm = sta->eapol_sm;
245
246 if (!sm || !sm->eap_if->eapKeyData)
247 return;
248
249 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key(s) to " MACSTR,
250 MAC2STR(sta->addr));
251
252 #ifndef CONFIG_NO_VLAN
253 if (sta->vlan_id > 0) {
254 wpa_printf(MSG_ERROR, "Using WEP with vlans is not supported.");
255 return;
256 }
257 #endif /* CONFIG_NO_VLAN */
258
259 if (eapol->default_wep_key) {
260 ieee802_1x_tx_key_one(hapd, sta, eapol->default_wep_key_idx, 1,
261 eapol->default_wep_key,
262 hapd->conf->default_wep_key_len);
263 }
264
265 if (hapd->conf->individual_wep_key_len > 0) {
266 u8 *ikey;
267
268 ikey = os_malloc(hapd->conf->individual_wep_key_len);
269 if (!ikey ||
270 random_get_bytes(ikey, hapd->conf->individual_wep_key_len))
271 {
272 wpa_printf(MSG_ERROR,
273 "Could not generate random individual WEP key");
274 os_free(ikey);
275 return;
276 }
277
278 wpa_hexdump_key(MSG_DEBUG, "Individual WEP key",
279 ikey, hapd->conf->individual_wep_key_len);
280
281 ieee802_1x_tx_key_one(hapd, sta, 0, 0, ikey,
282 hapd->conf->individual_wep_key_len);
283
284 /* TODO: set encryption in TX callback, i.e., only after STA
285 * has ACKed EAPOL-Key frame */
286 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
287 sta->addr, 0, 0, 1, NULL, 0, ikey,
288 hapd->conf->individual_wep_key_len)) {
289 wpa_printf(MSG_ERROR,
290 "Could not set individual WEP encryption");
291 }
292
293 os_free(ikey);
294 }
295 }
296
297 #endif /* CONFIG_NO_RC4 */
298 #endif /* CONFIG_FIPS */
299
300
301 const char *radius_mode_txt(struct hostapd_data *hapd)
302 {
303 switch (hapd->iface->conf->hw_mode) {
304 case HOSTAPD_MODE_IEEE80211AD:
305 return "802.11ad";
306 case HOSTAPD_MODE_IEEE80211A:
307 return "802.11a";
308 case HOSTAPD_MODE_IEEE80211G:
309 return "802.11g";
310 case HOSTAPD_MODE_IEEE80211B:
311 default:
312 return "802.11b";
313 }
314 }
315
316
317 int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta)
318 {
319 int i;
320 u8 rate = 0;
321
322 for (i = 0; i < sta->supported_rates_len; i++)
323 if ((sta->supported_rates[i] & 0x7f) > rate)
324 rate = sta->supported_rates[i] & 0x7f;
325
326 return rate;
327 }
328
329
330 #ifndef CONFIG_NO_RADIUS
331 static void ieee802_1x_learn_identity(struct hostapd_data *hapd,
332 struct eapol_state_machine *sm,
333 const u8 *eap, size_t len)
334 {
335 const u8 *identity;
336 size_t identity_len;
337 const struct eap_hdr *hdr = (const struct eap_hdr *) eap;
338
339 if (len <= sizeof(struct eap_hdr) ||
340 (hdr->code == EAP_CODE_RESPONSE &&
341 eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY) ||
342 (hdr->code == EAP_CODE_INITIATE &&
343 eap[sizeof(struct eap_hdr)] != EAP_ERP_TYPE_REAUTH) ||
344 (hdr->code != EAP_CODE_RESPONSE &&
345 hdr->code != EAP_CODE_INITIATE))
346 return;
347
348 eap_erp_update_identity(sm->eap, eap, len);
349 identity = eap_get_identity(sm->eap, &identity_len);
350 if (!identity)
351 return;
352
353 /* Save station identity for future RADIUS packets */
354 os_free(sm->identity);
355 sm->identity = (u8 *) dup_binstr(identity, identity_len);
356 if (!sm->identity) {
357 sm->identity_len = 0;
358 return;
359 }
360
361 sm->identity_len = identity_len;
362 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
363 HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity);
364 sm->dot1xAuthEapolRespIdFramesRx++;
365 }
366
367
368 static int add_common_radius_sta_attr_rsn(struct hostapd_data *hapd,
369 struct hostapd_radius_attr *req_attr,
370 struct sta_info *sta,
371 struct radius_msg *msg)
372 {
373 u32 suite;
374 int ver, val;
375
376 ver = wpa_auth_sta_wpa_version(sta->wpa_sm);
377 val = wpa_auth_get_pairwise(sta->wpa_sm);
378 suite = wpa_cipher_to_suite(ver, val);
379 if (val != -1 &&
380 !hostapd_config_get_radius_attr(req_attr,
381 RADIUS_ATTR_WLAN_PAIRWISE_CIPHER) &&
382 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_PAIRWISE_CIPHER,
383 suite)) {
384 wpa_printf(MSG_ERROR, "Could not add WLAN-Pairwise-Cipher");
385 return -1;
386 }
387
388 suite = wpa_cipher_to_suite(((hapd->conf->wpa & 0x2) ||
389 hapd->conf->osen) ?
390 WPA_PROTO_RSN : WPA_PROTO_WPA,
391 hapd->conf->wpa_group);
392 if (!hostapd_config_get_radius_attr(req_attr,
393 RADIUS_ATTR_WLAN_GROUP_CIPHER) &&
394 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_GROUP_CIPHER,
395 suite)) {
396 wpa_printf(MSG_ERROR, "Could not add WLAN-Group-Cipher");
397 return -1;
398 }
399
400 val = wpa_auth_sta_key_mgmt(sta->wpa_sm);
401 suite = wpa_akm_to_suite(val);
402 if (val != -1 &&
403 !hostapd_config_get_radius_attr(req_attr,
404 RADIUS_ATTR_WLAN_AKM_SUITE) &&
405 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_AKM_SUITE,
406 suite)) {
407 wpa_printf(MSG_ERROR, "Could not add WLAN-AKM-Suite");
408 return -1;
409 }
410
411 if (hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
412 suite = wpa_cipher_to_suite(WPA_PROTO_RSN,
413 hapd->conf->group_mgmt_cipher);
414 if (!hostapd_config_get_radius_attr(
415 req_attr, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER) &&
416 !radius_msg_add_attr_int32(
417 msg, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER, suite)) {
418 wpa_printf(MSG_ERROR,
419 "Could not add WLAN-Group-Mgmt-Cipher");
420 return -1;
421 }
422 }
423
424 return 0;
425 }
426
427
428 static int add_common_radius_sta_attr(struct hostapd_data *hapd,
429 struct hostapd_radius_attr *req_attr,
430 struct sta_info *sta,
431 struct radius_msg *msg)
432 {
433 char buf[128];
434
435 if (!hostapd_config_get_radius_attr(req_attr,
436 RADIUS_ATTR_SERVICE_TYPE) &&
437 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_SERVICE_TYPE,
438 RADIUS_SERVICE_TYPE_FRAMED)) {
439 wpa_printf(MSG_ERROR, "Could not add Service-Type");
440 return -1;
441 }
442
443 if (!hostapd_config_get_radius_attr(req_attr,
444 RADIUS_ATTR_NAS_PORT) &&
445 sta->aid > 0 &&
446 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
447 wpa_printf(MSG_ERROR, "Could not add NAS-Port");
448 return -1;
449 }
450
451 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
452 MAC2STR(sta->addr));
453 buf[sizeof(buf) - 1] = '\0';
454 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
455 (u8 *) buf, os_strlen(buf))) {
456 wpa_printf(MSG_ERROR, "Could not add Calling-Station-Id");
457 return -1;
458 }
459
460 if (sta->flags & WLAN_STA_PREAUTH) {
461 os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
462 sizeof(buf));
463 } else {
464 os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
465 radius_sta_rate(hapd, sta) / 2,
466 (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
467 radius_mode_txt(hapd));
468 buf[sizeof(buf) - 1] = '\0';
469 }
470 if (!hostapd_config_get_radius_attr(req_attr,
471 RADIUS_ATTR_CONNECT_INFO) &&
472 !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
473 (u8 *) buf, os_strlen(buf))) {
474 wpa_printf(MSG_ERROR, "Could not add Connect-Info");
475 return -1;
476 }
477
478 if (sta->acct_session_id) {
479 os_snprintf(buf, sizeof(buf), "%016llX",
480 (unsigned long long) sta->acct_session_id);
481 if (!radius_msg_add_attr(msg, RADIUS_ATTR_ACCT_SESSION_ID,
482 (u8 *) buf, os_strlen(buf))) {
483 wpa_printf(MSG_ERROR, "Could not add Acct-Session-Id");
484 return -1;
485 }
486 }
487
488 if ((hapd->conf->wpa & 2) &&
489 !hapd->conf->disable_pmksa_caching &&
490 sta->eapol_sm && sta->eapol_sm->acct_multi_session_id) {
491 os_snprintf(buf, sizeof(buf), "%016llX",
492 (unsigned long long)
493 sta->eapol_sm->acct_multi_session_id);
494 if (!radius_msg_add_attr(
495 msg, RADIUS_ATTR_ACCT_MULTI_SESSION_ID,
496 (u8 *) buf, os_strlen(buf))) {
497 wpa_printf(MSG_INFO,
498 "Could not add Acct-Multi-Session-Id");
499 return -1;
500 }
501 }
502
503 #ifdef CONFIG_IEEE80211R_AP
504 if (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) &&
505 sta->wpa_sm &&
506 (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm)) ||
507 sta->auth_alg == WLAN_AUTH_FT) &&
508 !hostapd_config_get_radius_attr(req_attr,
509 RADIUS_ATTR_MOBILITY_DOMAIN_ID) &&
510 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_MOBILITY_DOMAIN_ID,
511 WPA_GET_BE16(
512 hapd->conf->mobility_domain))) {
513 wpa_printf(MSG_ERROR, "Could not add Mobility-Domain-Id");
514 return -1;
515 }
516 #endif /* CONFIG_IEEE80211R_AP */
517
518 if ((hapd->conf->wpa || hapd->conf->osen) && sta->wpa_sm &&
519 add_common_radius_sta_attr_rsn(hapd, req_attr, sta, msg) < 0)
520 return -1;
521
522 return 0;
523 }
524
525
526 int add_common_radius_attr(struct hostapd_data *hapd,
527 struct hostapd_radius_attr *req_attr,
528 struct sta_info *sta,
529 struct radius_msg *msg)
530 {
531 char buf[128];
532 struct hostapd_radius_attr *attr;
533 int len;
534
535 if (!hostapd_config_get_radius_attr(req_attr,
536 RADIUS_ATTR_NAS_IP_ADDRESS) &&
537 hapd->conf->own_ip_addr.af == AF_INET &&
538 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
539 (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
540 wpa_printf(MSG_ERROR, "Could not add NAS-IP-Address");
541 return -1;
542 }
543
544 #ifdef CONFIG_IPV6
545 if (!hostapd_config_get_radius_attr(req_attr,
546 RADIUS_ATTR_NAS_IPV6_ADDRESS) &&
547 hapd->conf->own_ip_addr.af == AF_INET6 &&
548 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
549 (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
550 wpa_printf(MSG_ERROR, "Could not add NAS-IPv6-Address");
551 return -1;
552 }
553 #endif /* CONFIG_IPV6 */
554
555 if (!hostapd_config_get_radius_attr(req_attr,
556 RADIUS_ATTR_NAS_IDENTIFIER) &&
557 hapd->conf->nas_identifier &&
558 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
559 (u8 *) hapd->conf->nas_identifier,
560 os_strlen(hapd->conf->nas_identifier))) {
561 wpa_printf(MSG_ERROR, "Could not add NAS-Identifier");
562 return -1;
563 }
564
565 len = os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":",
566 MAC2STR(hapd->own_addr));
567 os_memcpy(&buf[len], hapd->conf->ssid.ssid,
568 hapd->conf->ssid.ssid_len);
569 len += hapd->conf->ssid.ssid_len;
570 if (!hostapd_config_get_radius_attr(req_attr,
571 RADIUS_ATTR_CALLED_STATION_ID) &&
572 !radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
573 (u8 *) buf, len)) {
574 wpa_printf(MSG_ERROR, "Could not add Called-Station-Id");
575 return -1;
576 }
577
578 if (!hostapd_config_get_radius_attr(req_attr,
579 RADIUS_ATTR_NAS_PORT_TYPE) &&
580 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
581 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
582 wpa_printf(MSG_ERROR, "Could not add NAS-Port-Type");
583 return -1;
584 }
585
586 #ifdef CONFIG_INTERWORKING
587 if (hapd->conf->interworking &&
588 !is_zero_ether_addr(hapd->conf->hessid)) {
589 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
590 MAC2STR(hapd->conf->hessid));
591 buf[sizeof(buf) - 1] = '\0';
592 if (!hostapd_config_get_radius_attr(req_attr,
593 RADIUS_ATTR_WLAN_HESSID) &&
594 !radius_msg_add_attr(msg, RADIUS_ATTR_WLAN_HESSID,
595 (u8 *) buf, os_strlen(buf))) {
596 wpa_printf(MSG_ERROR, "Could not add WLAN-HESSID");
597 return -1;
598 }
599 }
600 #endif /* CONFIG_INTERWORKING */
601
602 if (sta && add_common_radius_sta_attr(hapd, req_attr, sta, msg) < 0)
603 return -1;
604
605 for (attr = req_attr; attr; attr = attr->next) {
606 if (!radius_msg_add_attr(msg, attr->type,
607 wpabuf_head(attr->val),
608 wpabuf_len(attr->val))) {
609 wpa_printf(MSG_ERROR, "Could not add RADIUS attribute");
610 return -1;
611 }
612 }
613
614 return 0;
615 }
616
617
618 int add_sqlite_radius_attr(struct hostapd_data *hapd, struct sta_info *sta,
619 struct radius_msg *msg, int acct)
620 {
621 #ifdef CONFIG_SQLITE
622 const char *attrtxt;
623 char addrtxt[3 * ETH_ALEN];
624 char *sql;
625 sqlite3_stmt *stmt = NULL;
626
627 if (!hapd->rad_attr_db)
628 return 0;
629
630 os_snprintf(addrtxt, sizeof(addrtxt), MACSTR, MAC2STR(sta->addr));
631
632 sql = "SELECT attr FROM radius_attributes WHERE sta=? AND (reqtype=? OR reqtype IS NULL);";
633 if (sqlite3_prepare_v2(hapd->rad_attr_db, sql, os_strlen(sql), &stmt,
634 NULL) != SQLITE_OK) {
635 wpa_printf(MSG_ERROR, "DB: Failed to prepare SQL statement: %s",
636 sqlite3_errmsg(hapd->rad_attr_db));
637 return -1;
638 }
639 sqlite3_bind_text(stmt, 1, addrtxt, os_strlen(addrtxt), SQLITE_STATIC);
640 sqlite3_bind_text(stmt, 2, acct ? "acct" : "auth", 4, SQLITE_STATIC);
641 while (sqlite3_step(stmt) == SQLITE_ROW) {
642 struct hostapd_radius_attr *attr;
643 struct radius_attr_hdr *hdr;
644
645 attrtxt = (const char *) sqlite3_column_text(stmt, 0);
646 attr = hostapd_parse_radius_attr(attrtxt);
647 if (!attr) {
648 wpa_printf(MSG_ERROR,
649 "Skipping invalid attribute from SQL: %s",
650 attrtxt);
651 continue;
652 }
653 wpa_printf(MSG_DEBUG, "Adding RADIUS attribute from SQL: %s",
654 attrtxt);
655 hdr = radius_msg_add_attr(msg, attr->type,
656 wpabuf_head(attr->val),
657 wpabuf_len(attr->val));
658 hostapd_config_free_radius_attr(attr);
659 if (!hdr) {
660 wpa_printf(MSG_ERROR,
661 "Could not add RADIUS attribute from SQL");
662 continue;
663 }
664 }
665
666 sqlite3_reset(stmt);
667 sqlite3_clear_bindings(stmt);
668 sqlite3_finalize(stmt);
669 #endif /* CONFIG_SQLITE */
670
671 return 0;
672 }
673
674
675 void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
676 struct sta_info *sta,
677 const u8 *eap, size_t len)
678 {
679 struct radius_msg *msg;
680 struct eapol_state_machine *sm = sta->eapol_sm;
681
682 if (!sm)
683 return;
684
685 ieee802_1x_learn_identity(hapd, sm, eap, len);
686
687 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS packet");
688
689 sm->radius_identifier = radius_client_get_id(hapd->radius);
690 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
691 sm->radius_identifier);
692 if (!msg) {
693 wpa_printf(MSG_INFO, "Could not create new RADIUS packet");
694 return;
695 }
696
697 if (radius_msg_make_authenticator(msg) < 0) {
698 wpa_printf(MSG_INFO, "Could not make Request Authenticator");
699 goto fail;
700 }
701
702 if (sm->identity &&
703 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
704 sm->identity, sm->identity_len)) {
705 wpa_printf(MSG_INFO, "Could not add User-Name");
706 goto fail;
707 }
708
709 if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr, sta,
710 msg) < 0)
711 goto fail;
712
713 if (sta && add_sqlite_radius_attr(hapd, sta, msg, 0) < 0)
714 goto fail;
715
716 /* TODO: should probably check MTU from driver config; 2304 is max for
717 * IEEE 802.11, but use 1400 to avoid problems with too large packets
718 */
719 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
720 RADIUS_ATTR_FRAMED_MTU) &&
721 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
722 wpa_printf(MSG_INFO, "Could not add Framed-MTU");
723 goto fail;
724 }
725
726 if (!radius_msg_add_eap(msg, eap, len)) {
727 wpa_printf(MSG_INFO, "Could not add EAP-Message");
728 goto fail;
729 }
730
731 /* State attribute must be copied if and only if this packet is
732 * Access-Request reply to the previous Access-Challenge */
733 if (sm->last_recv_radius &&
734 radius_msg_get_hdr(sm->last_recv_radius)->code ==
735 RADIUS_CODE_ACCESS_CHALLENGE) {
736 int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
737 RADIUS_ATTR_STATE);
738 if (res < 0) {
739 wpa_printf(MSG_INFO,
740 "Could not copy State attribute from previous Access-Challenge");
741 goto fail;
742 }
743 if (res > 0)
744 wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
745 }
746
747 if (hapd->conf->radius_request_cui) {
748 const u8 *cui;
749 size_t cui_len;
750 /* Add previously learned CUI or nul CUI to request CUI */
751 if (sm->radius_cui) {
752 cui = wpabuf_head(sm->radius_cui);
753 cui_len = wpabuf_len(sm->radius_cui);
754 } else {
755 cui = (const u8 *) "\0";
756 cui_len = 1;
757 }
758 if (!radius_msg_add_attr(msg,
759 RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
760 cui, cui_len)) {
761 wpa_printf(MSG_ERROR, "Could not add CUI");
762 goto fail;
763 }
764 }
765
766 #ifdef CONFIG_HS20
767 if (hapd->conf->hs20) {
768 u8 ver = hapd->conf->hs20_release - 1;
769
770 if (!radius_msg_add_wfa(
771 msg, RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION,
772 &ver, 1)) {
773 wpa_printf(MSG_ERROR,
774 "Could not add HS 2.0 AP version");
775 goto fail;
776 }
777
778 if (sta->hs20_ie && wpabuf_len(sta->hs20_ie) > 0) {
779 const u8 *pos;
780 u8 buf[3];
781 u16 id;
782
783 pos = wpabuf_head_u8(sta->hs20_ie);
784 buf[0] = (*pos) >> 4;
785 if (((*pos) & HS20_PPS_MO_ID_PRESENT) &&
786 wpabuf_len(sta->hs20_ie) >= 3)
787 id = WPA_GET_LE16(pos + 1);
788 else
789 id = 0;
790 WPA_PUT_BE16(buf + 1, id);
791 if (!radius_msg_add_wfa(
792 msg,
793 RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION,
794 buf, sizeof(buf))) {
795 wpa_printf(MSG_ERROR,
796 "Could not add HS 2.0 STA version");
797 goto fail;
798 }
799 }
800
801 if (sta->roaming_consortium &&
802 !radius_msg_add_wfa(
803 msg, RADIUS_VENDOR_ATTR_WFA_HS20_ROAMING_CONSORTIUM,
804 wpabuf_head(sta->roaming_consortium),
805 wpabuf_len(sta->roaming_consortium))) {
806 wpa_printf(MSG_ERROR,
807 "Could not add HS 2.0 Roaming Consortium");
808 goto fail;
809 }
810
811 if (hapd->conf->t_c_filename) {
812 be32 timestamp;
813
814 if (!radius_msg_add_wfa(
815 msg,
816 RADIUS_VENDOR_ATTR_WFA_HS20_T_C_FILENAME,
817 (const u8 *) hapd->conf->t_c_filename,
818 os_strlen(hapd->conf->t_c_filename))) {
819 wpa_printf(MSG_ERROR,
820 "Could not add HS 2.0 T&C Filename");
821 goto fail;
822 }
823
824 timestamp = host_to_be32(hapd->conf->t_c_timestamp);
825 if (!radius_msg_add_wfa(
826 msg,
827 RADIUS_VENDOR_ATTR_WFA_HS20_TIMESTAMP,
828 (const u8 *) &timestamp,
829 sizeof(timestamp))) {
830 wpa_printf(MSG_ERROR,
831 "Could not add HS 2.0 Timestamp");
832 goto fail;
833 }
834 }
835 }
836 #endif /* CONFIG_HS20 */
837
838 if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0)
839 goto fail;
840
841 return;
842
843 fail:
844 radius_msg_free(msg);
845 }
846 #endif /* CONFIG_NO_RADIUS */
847
848
849 static void handle_eap_response(struct hostapd_data *hapd,
850 struct sta_info *sta, struct eap_hdr *eap,
851 size_t len)
852 {
853 u8 type, *data;
854 struct eapol_state_machine *sm = sta->eapol_sm;
855
856 if (!sm)
857 return;
858
859 data = (u8 *) (eap + 1);
860
861 if (len < sizeof(*eap) + 1) {
862 wpa_printf(MSG_INFO, "%s: too short response data", __func__);
863 return;
864 }
865
866 sm->eap_type_supp = type = data[0];
867
868 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
869 HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
870 "id=%d len=%d) from STA: EAP Response-%s (%d)",
871 eap->code, eap->identifier, be_to_host16(eap->length),
872 eap_server_get_name(0, type), type);
873
874 sm->dot1xAuthEapolRespFramesRx++;
875
876 wpabuf_free(sm->eap_if->eapRespData);
877 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
878 sm->eapolEap = TRUE;
879 }
880
881
882 static void handle_eap_initiate(struct hostapd_data *hapd,
883 struct sta_info *sta, struct eap_hdr *eap,
884 size_t len)
885 {
886 #ifdef CONFIG_ERP
887 u8 type, *data;
888 struct eapol_state_machine *sm = sta->eapol_sm;
889
890 if (!sm)
891 return;
892
893 if (len < sizeof(*eap) + 1) {
894 wpa_printf(MSG_INFO, "%s: too short response data", __func__);
895 return;
896 }
897
898 data = (u8 *) (eap + 1);
899 type = data[0];
900
901 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
902 HOSTAPD_LEVEL_DEBUG,
903 "received EAP packet (code=%d id=%d len=%d) from STA: EAP Initiate type %u",
904 eap->code, eap->identifier, be_to_host16(eap->length),
905 type);
906
907 wpabuf_free(sm->eap_if->eapRespData);
908 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
909 sm->eapolEap = TRUE;
910 #endif /* CONFIG_ERP */
911 }
912
913
914 #ifndef CONFIG_NO_STDOUT_DEBUG
915 static const char * eap_code_str(u8 code)
916 {
917 switch (code) {
918 case EAP_CODE_REQUEST:
919 return "request";
920 case EAP_CODE_RESPONSE:
921 return "response";
922 case EAP_CODE_SUCCESS:
923 return "success";
924 case EAP_CODE_FAILURE:
925 return "failure";
926 case EAP_CODE_INITIATE:
927 return "initiate";
928 case EAP_CODE_FINISH:
929 return "finish";
930 default:
931 return "unknown";
932 }
933 }
934 #endif /* CONFIG_NO_STDOUT_DEBUG */
935
936
937 /* Process incoming EAP packet from Supplicant */
938 static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
939 u8 *buf, size_t len)
940 {
941 struct eap_hdr *eap;
942 u16 eap_len;
943
944 if (len < sizeof(*eap)) {
945 wpa_printf(MSG_INFO, " too short EAP packet");
946 return;
947 }
948
949 eap = (struct eap_hdr *) buf;
950
951 eap_len = be_to_host16(eap->length);
952 wpa_printf(MSG_DEBUG, "EAP: code=%d (%s) identifier=%d length=%d",
953 eap->code, eap_code_str(eap->code), eap->identifier,
954 eap_len);
955 if (eap_len < sizeof(*eap)) {
956 wpa_printf(MSG_DEBUG, " Invalid EAP length");
957 return;
958 } else if (eap_len > len) {
959 wpa_printf(MSG_DEBUG,
960 " Too short frame to contain this EAP packet");
961 return;
962 } else if (eap_len < len) {
963 wpa_printf(MSG_DEBUG,
964 " Ignoring %lu extra bytes after EAP packet",
965 (unsigned long) len - eap_len);
966 }
967
968 switch (eap->code) {
969 case EAP_CODE_RESPONSE:
970 handle_eap_response(hapd, sta, eap, eap_len);
971 break;
972 case EAP_CODE_INITIATE:
973 handle_eap_initiate(hapd, sta, eap, eap_len);
974 break;
975 }
976 }
977
978
979 struct eapol_state_machine *
980 ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
981 {
982 int flags = 0;
983
984 if (sta->flags & WLAN_STA_PREAUTH)
985 flags |= EAPOL_SM_PREAUTH;
986 if (sta->wpa_sm) {
987 flags |= EAPOL_SM_USES_WPA;
988 if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
989 flags |= EAPOL_SM_FROM_PMKSA_CACHE;
990 }
991 return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
992 sta->wps_ie, sta->p2p_ie, sta,
993 sta->identity, sta->radius_cui);
994 }
995
996
997 static void ieee802_1x_save_eapol(struct sta_info *sta, const u8 *buf,
998 size_t len)
999 {
1000 if (sta->pending_eapol_rx) {
1001 wpabuf_free(sta->pending_eapol_rx->buf);
1002 } else {
1003 sta->pending_eapol_rx =
1004 os_malloc(sizeof(*sta->pending_eapol_rx));
1005 if (!sta->pending_eapol_rx)
1006 return;
1007 }
1008
1009 sta->pending_eapol_rx->buf = wpabuf_alloc_copy(buf, len);
1010 if (!sta->pending_eapol_rx->buf) {
1011 os_free(sta->pending_eapol_rx);
1012 sta->pending_eapol_rx = NULL;
1013 return;
1014 }
1015
1016 os_get_reltime(&sta->pending_eapol_rx->rx_time);
1017 }
1018
1019
1020 /**
1021 * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
1022 * @hapd: hostapd BSS data
1023 * @sa: Source address (sender of the EAPOL frame)
1024 * @buf: EAPOL frame
1025 * @len: Length of buf in octets
1026 *
1027 * This function is called for each incoming EAPOL frame from the interface
1028 */
1029 void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
1030 size_t len)
1031 {
1032 struct sta_info *sta;
1033 struct ieee802_1x_hdr *hdr;
1034 struct ieee802_1x_eapol_key *key;
1035 u16 datalen;
1036 struct rsn_pmksa_cache_entry *pmksa;
1037 int key_mgmt;
1038
1039 if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen &&
1040 !hapd->conf->wps_state)
1041 return;
1042
1043 wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
1044 (unsigned long) len, MAC2STR(sa));
1045 sta = ap_get_sta(hapd, sa);
1046 if (!sta || (!(sta->flags & (WLAN_STA_ASSOC | WLAN_STA_PREAUTH)) &&
1047 !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
1048 wpa_printf(MSG_DEBUG,
1049 "IEEE 802.1X data frame from not associated/Pre-authenticating STA");
1050
1051 if (sta && (sta->flags & WLAN_STA_AUTH)) {
1052 wpa_printf(MSG_DEBUG, "Saving EAPOL frame from " MACSTR
1053 " for later use", MAC2STR(sta->addr));
1054 ieee802_1x_save_eapol(sta, buf, len);
1055 }
1056
1057 return;
1058 }
1059
1060 if (len < sizeof(*hdr)) {
1061 wpa_printf(MSG_INFO, " too short IEEE 802.1X packet");
1062 return;
1063 }
1064
1065 hdr = (struct ieee802_1x_hdr *) buf;
1066 datalen = be_to_host16(hdr->length);
1067 wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
1068 hdr->version, hdr->type, datalen);
1069
1070 if (len - sizeof(*hdr) < datalen) {
1071 wpa_printf(MSG_INFO,
1072 " frame too short for this IEEE 802.1X packet");
1073 if (sta->eapol_sm)
1074 sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
1075 return;
1076 }
1077 if (len - sizeof(*hdr) > datalen) {
1078 wpa_printf(MSG_DEBUG,
1079 " ignoring %lu extra octets after IEEE 802.1X packet",
1080 (unsigned long) len - sizeof(*hdr) - datalen);
1081 }
1082
1083 if (sta->eapol_sm) {
1084 sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
1085 sta->eapol_sm->dot1xAuthEapolFramesRx++;
1086 }
1087
1088 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
1089 if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
1090 hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
1091 (key->type == EAPOL_KEY_TYPE_WPA ||
1092 key->type == EAPOL_KEY_TYPE_RSN)) {
1093 wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
1094 sizeof(*hdr) + datalen);
1095 return;
1096 }
1097
1098 if (!hapd->conf->ieee802_1x && !hapd->conf->osen &&
1099 !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
1100 wpa_printf(MSG_DEBUG,
1101 "IEEE 802.1X: Ignore EAPOL message - 802.1X not enabled and WPS not used");
1102 return;
1103 }
1104
1105 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
1106 if (key_mgmt != -1 &&
1107 (wpa_key_mgmt_wpa_psk(key_mgmt) || key_mgmt == WPA_KEY_MGMT_OWE ||
1108 key_mgmt == WPA_KEY_MGMT_DPP)) {
1109 wpa_printf(MSG_DEBUG,
1110 "IEEE 802.1X: Ignore EAPOL message - STA is using PSK");
1111 return;
1112 }
1113
1114 if (!sta->eapol_sm) {
1115 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
1116 if (!sta->eapol_sm)
1117 return;
1118
1119 #ifdef CONFIG_WPS
1120 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state) {
1121 u32 wflags = sta->flags & (WLAN_STA_WPS |
1122 WLAN_STA_WPS2 |
1123 WLAN_STA_MAYBE_WPS);
1124 if (wflags == WLAN_STA_MAYBE_WPS ||
1125 wflags == (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) {
1126 /*
1127 * Delay EAPOL frame transmission until a
1128 * possible WPS STA initiates the handshake
1129 * with EAPOL-Start. Only allow the wait to be
1130 * skipped if the STA is known to support WPS
1131 * 2.0.
1132 */
1133 wpa_printf(MSG_DEBUG,
1134 "WPS: Do not start EAPOL until EAPOL-Start is received");
1135 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1136 }
1137 }
1138 #endif /* CONFIG_WPS */
1139
1140 sta->eapol_sm->eap_if->portEnabled = TRUE;
1141 }
1142
1143 /* since we support version 1, we can ignore version field and proceed
1144 * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
1145 /* TODO: actually, we are not version 1 anymore.. However, Version 2
1146 * does not change frame contents, so should be ok to process frames
1147 * more or less identically. Some changes might be needed for
1148 * verification of fields. */
1149
1150 switch (hdr->type) {
1151 case IEEE802_1X_TYPE_EAP_PACKET:
1152 handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
1153 break;
1154
1155 case IEEE802_1X_TYPE_EAPOL_START:
1156 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1157 HOSTAPD_LEVEL_DEBUG,
1158 "received EAPOL-Start from STA");
1159 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
1160 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1161 if (pmksa) {
1162 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
1163 HOSTAPD_LEVEL_DEBUG,
1164 "cached PMKSA available - ignore it since STA sent EAPOL-Start");
1165 wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
1166 }
1167 sta->eapol_sm->eapolStart = TRUE;
1168 sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
1169 eap_server_clear_identity(sta->eapol_sm->eap);
1170 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
1171 break;
1172
1173 case IEEE802_1X_TYPE_EAPOL_LOGOFF:
1174 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1175 HOSTAPD_LEVEL_DEBUG,
1176 "received EAPOL-Logoff from STA");
1177 sta->acct_terminate_cause =
1178 RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
1179 accounting_sta_stop(hapd, sta);
1180 sta->eapol_sm->eapolLogoff = TRUE;
1181 sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
1182 eap_server_clear_identity(sta->eapol_sm->eap);
1183 break;
1184
1185 case IEEE802_1X_TYPE_EAPOL_KEY:
1186 wpa_printf(MSG_DEBUG, " EAPOL-Key");
1187 if (!ap_sta_is_authorized(sta)) {
1188 wpa_printf(MSG_DEBUG,
1189 " Dropped key data from unauthorized Supplicant");
1190 break;
1191 }
1192 break;
1193
1194 case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
1195 wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
1196 /* TODO: implement support for this; show data */
1197 break;
1198
1199 #ifdef CONFIG_MACSEC
1200 case IEEE802_1X_TYPE_EAPOL_MKA:
1201 wpa_printf(MSG_EXCESSIVE,
1202 "EAPOL type %d will be handled by MKA", hdr->type);
1203 break;
1204 #endif /* CONFIG_MACSEC */
1205
1206 default:
1207 wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
1208 sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
1209 break;
1210 }
1211
1212 eapol_auth_step(sta->eapol_sm);
1213 }
1214
1215
1216 /**
1217 * ieee802_1x_new_station - Start IEEE 802.1X authentication
1218 * @hapd: hostapd BSS data
1219 * @sta: The station
1220 *
1221 * This function is called to start IEEE 802.1X authentication when a new
1222 * station completes IEEE 802.11 association.
1223 */
1224 void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
1225 {
1226 struct rsn_pmksa_cache_entry *pmksa;
1227 int reassoc = 1;
1228 int force_1x = 0;
1229 int key_mgmt;
1230
1231 #ifdef CONFIG_WPS
1232 if (hapd->conf->wps_state &&
1233 ((hapd->conf->wpa && (sta->flags & WLAN_STA_MAYBE_WPS)) ||
1234 (sta->flags & WLAN_STA_WPS))) {
1235 /*
1236 * Need to enable IEEE 802.1X/EAPOL state machines for possible
1237 * WPS handshake even if IEEE 802.1X/EAPOL is not used for
1238 * authentication in this BSS.
1239 */
1240 force_1x = 1;
1241 }
1242 #endif /* CONFIG_WPS */
1243
1244 if (!force_1x && !hapd->conf->ieee802_1x && !hapd->conf->osen) {
1245 wpa_printf(MSG_DEBUG,
1246 "IEEE 802.1X: Ignore STA - 802.1X not enabled or forced for WPS");
1247 /*
1248 * Clear any possible EAPOL authenticator state to support
1249 * reassociation change from WPS to PSK.
1250 */
1251 ieee802_1x_free_station(hapd, sta);
1252 return;
1253 }
1254
1255 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
1256 if (key_mgmt != -1 &&
1257 (wpa_key_mgmt_wpa_psk(key_mgmt) || key_mgmt == WPA_KEY_MGMT_OWE ||
1258 key_mgmt == WPA_KEY_MGMT_DPP)) {
1259 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - using PSK");
1260 /*
1261 * Clear any possible EAPOL authenticator state to support
1262 * reassociation change from WPA-EAP to PSK.
1263 */
1264 ieee802_1x_free_station(hapd, sta);
1265 return;
1266 }
1267
1268 if (!sta->eapol_sm) {
1269 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1270 HOSTAPD_LEVEL_DEBUG, "start authentication");
1271 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
1272 if (!sta->eapol_sm) {
1273 hostapd_logger(hapd, sta->addr,
1274 HOSTAPD_MODULE_IEEE8021X,
1275 HOSTAPD_LEVEL_INFO,
1276 "failed to allocate state machine");
1277 return;
1278 }
1279 reassoc = 0;
1280 }
1281
1282 #ifdef CONFIG_WPS
1283 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
1284 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state &&
1285 !(sta->flags & WLAN_STA_WPS2)) {
1286 /*
1287 * Delay EAPOL frame transmission until a possible WPS STA
1288 * initiates the handshake with EAPOL-Start. Only allow the
1289 * wait to be skipped if the STA is known to support WPS 2.0.
1290 */
1291 wpa_printf(MSG_DEBUG,
1292 "WPS: Do not start EAPOL until EAPOL-Start is received");
1293 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1294 }
1295 #endif /* CONFIG_WPS */
1296
1297 sta->eapol_sm->eap_if->portEnabled = TRUE;
1298
1299 #ifdef CONFIG_IEEE80211R_AP
1300 if (sta->auth_alg == WLAN_AUTH_FT) {
1301 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1302 HOSTAPD_LEVEL_DEBUG,
1303 "PMK from FT - skip IEEE 802.1X/EAP");
1304 /* Setup EAPOL state machines to already authenticated state
1305 * because of existing FT information from R0KH. */
1306 sta->eapol_sm->keyRun = TRUE;
1307 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1308 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1309 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1310 sta->eapol_sm->authSuccess = TRUE;
1311 sta->eapol_sm->authFail = FALSE;
1312 sta->eapol_sm->portValid = TRUE;
1313 if (sta->eapol_sm->eap)
1314 eap_sm_notify_cached(sta->eapol_sm->eap);
1315 ap_sta_bind_vlan(hapd, sta);
1316 return;
1317 }
1318 #endif /* CONFIG_IEEE80211R_AP */
1319
1320 #ifdef CONFIG_FILS
1321 if (sta->auth_alg == WLAN_AUTH_FILS_SK ||
1322 sta->auth_alg == WLAN_AUTH_FILS_SK_PFS ||
1323 sta->auth_alg == WLAN_AUTH_FILS_PK) {
1324 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1325 HOSTAPD_LEVEL_DEBUG,
1326 "PMK from FILS - skip IEEE 802.1X/EAP");
1327 /* Setup EAPOL state machines to already authenticated state
1328 * because of existing FILS information. */
1329 sta->eapol_sm->keyRun = TRUE;
1330 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1331 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1332 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1333 sta->eapol_sm->authSuccess = TRUE;
1334 sta->eapol_sm->authFail = FALSE;
1335 sta->eapol_sm->portValid = TRUE;
1336 if (sta->eapol_sm->eap)
1337 eap_sm_notify_cached(sta->eapol_sm->eap);
1338 wpa_auth_set_ptk_rekey_timer(sta->wpa_sm);
1339 return;
1340 }
1341 #endif /* CONFIG_FILS */
1342
1343 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1344 if (pmksa) {
1345 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1346 HOSTAPD_LEVEL_DEBUG,
1347 "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
1348 /* Setup EAPOL state machines to already authenticated state
1349 * because of existing PMKSA information in the cache. */
1350 sta->eapol_sm->keyRun = TRUE;
1351 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1352 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1353 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1354 sta->eapol_sm->authSuccess = TRUE;
1355 sta->eapol_sm->authFail = FALSE;
1356 if (sta->eapol_sm->eap)
1357 eap_sm_notify_cached(sta->eapol_sm->eap);
1358 pmksa_cache_to_eapol_data(hapd, pmksa, sta->eapol_sm);
1359 ap_sta_bind_vlan(hapd, sta);
1360 } else {
1361 if (reassoc) {
1362 /*
1363 * Force EAPOL state machines to start
1364 * re-authentication without having to wait for the
1365 * Supplicant to send EAPOL-Start.
1366 */
1367 sta->eapol_sm->reAuthenticate = TRUE;
1368 }
1369 eapol_auth_step(sta->eapol_sm);
1370 }
1371 }
1372
1373
1374 void ieee802_1x_free_station(struct hostapd_data *hapd, struct sta_info *sta)
1375 {
1376 struct eapol_state_machine *sm = sta->eapol_sm;
1377
1378 #ifdef CONFIG_HS20
1379 eloop_cancel_timeout(ieee802_1x_wnm_notif_send, hapd, sta);
1380 #endif /* CONFIG_HS20 */
1381
1382 if (sta->pending_eapol_rx) {
1383 wpabuf_free(sta->pending_eapol_rx->buf);
1384 os_free(sta->pending_eapol_rx);
1385 sta->pending_eapol_rx = NULL;
1386 }
1387
1388 if (!sm)
1389 return;
1390
1391 sta->eapol_sm = NULL;
1392
1393 #ifndef CONFIG_NO_RADIUS
1394 radius_msg_free(sm->last_recv_radius);
1395 radius_free_class(&sm->radius_class);
1396 #endif /* CONFIG_NO_RADIUS */
1397
1398 eapol_auth_free(sm);
1399 }
1400
1401
1402 #ifndef CONFIG_NO_RADIUS
1403 static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
1404 struct sta_info *sta)
1405 {
1406 struct wpabuf *eap;
1407 const struct eap_hdr *hdr;
1408 int eap_type = -1;
1409 char buf[64];
1410 struct radius_msg *msg;
1411 struct eapol_state_machine *sm = sta->eapol_sm;
1412
1413 if (!sm || !sm->last_recv_radius) {
1414 if (sm)
1415 sm->eap_if->aaaEapNoReq = TRUE;
1416 return;
1417 }
1418
1419 msg = sm->last_recv_radius;
1420
1421 eap = radius_msg_get_eap(msg);
1422 if (!eap) {
1423 /* RFC 3579, Chap. 2.6.3:
1424 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
1425 * attribute */
1426 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1427 HOSTAPD_LEVEL_WARNING,
1428 "could not extract EAP-Message from RADIUS message");
1429 sm->eap_if->aaaEapNoReq = TRUE;
1430 return;
1431 }
1432
1433 if (wpabuf_len(eap) < sizeof(*hdr)) {
1434 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1435 HOSTAPD_LEVEL_WARNING,
1436 "too short EAP packet received from authentication server");
1437 wpabuf_free(eap);
1438 sm->eap_if->aaaEapNoReq = TRUE;
1439 return;
1440 }
1441
1442 if (wpabuf_len(eap) > sizeof(*hdr))
1443 eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)];
1444
1445 hdr = wpabuf_head(eap);
1446 switch (hdr->code) {
1447 case EAP_CODE_REQUEST:
1448 if (eap_type >= 0)
1449 sm->eap_type_authsrv = eap_type;
1450 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
1451 eap_server_get_name(0, eap_type), eap_type);
1452 break;
1453 case EAP_CODE_RESPONSE:
1454 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
1455 eap_server_get_name(0, eap_type), eap_type);
1456 break;
1457 case EAP_CODE_SUCCESS:
1458 os_strlcpy(buf, "EAP Success", sizeof(buf));
1459 break;
1460 case EAP_CODE_FAILURE:
1461 os_strlcpy(buf, "EAP Failure", sizeof(buf));
1462 break;
1463 default:
1464 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
1465 break;
1466 }
1467 buf[sizeof(buf) - 1] = '\0';
1468 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1469 HOSTAPD_LEVEL_DEBUG,
1470 "decapsulated EAP packet (code=%d id=%d len=%d) from RADIUS server: %s",
1471 hdr->code, hdr->identifier, be_to_host16(hdr->length),
1472 buf);
1473 sm->eap_if->aaaEapReq = TRUE;
1474
1475 wpabuf_free(sm->eap_if->aaaEapReqData);
1476 sm->eap_if->aaaEapReqData = eap;
1477 }
1478
1479
1480 static void ieee802_1x_get_keys(struct hostapd_data *hapd,
1481 struct sta_info *sta, struct radius_msg *msg,
1482 struct radius_msg *req,
1483 const u8 *shared_secret,
1484 size_t shared_secret_len)
1485 {
1486 struct radius_ms_mppe_keys *keys;
1487 u8 *buf;
1488 size_t len;
1489 struct eapol_state_machine *sm = sta->eapol_sm;
1490
1491 if (!sm)
1492 return;
1493
1494 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
1495 shared_secret_len);
1496
1497 if (keys && keys->send && keys->recv) {
1498 len = keys->send_len + keys->recv_len;
1499 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
1500 keys->send, keys->send_len);
1501 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
1502 keys->recv, keys->recv_len);
1503
1504 os_free(sm->eap_if->aaaEapKeyData);
1505 sm->eap_if->aaaEapKeyData = os_malloc(len);
1506 if (sm->eap_if->aaaEapKeyData) {
1507 os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
1508 keys->recv_len);
1509 os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
1510 keys->send, keys->send_len);
1511 sm->eap_if->aaaEapKeyDataLen = len;
1512 sm->eap_if->aaaEapKeyAvailable = TRUE;
1513 }
1514 } else {
1515 wpa_printf(MSG_DEBUG,
1516 "MS-MPPE: 1x_get_keys, could not get keys: %p send: %p recv: %p",
1517 keys, keys ? keys->send : NULL,
1518 keys ? keys->recv : NULL);
1519 }
1520
1521 if (keys) {
1522 os_free(keys->send);
1523 os_free(keys->recv);
1524 os_free(keys);
1525 }
1526
1527 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_EAP_KEY_NAME, &buf, &len,
1528 NULL) == 0) {
1529 os_free(sm->eap_if->eapSessionId);
1530 sm->eap_if->eapSessionId = os_memdup(buf, len);
1531 if (sm->eap_if->eapSessionId) {
1532 sm->eap_if->eapSessionIdLen = len;
1533 wpa_hexdump(MSG_DEBUG, "EAP-Key Name",
1534 sm->eap_if->eapSessionId,
1535 sm->eap_if->eapSessionIdLen);
1536 }
1537 } else {
1538 sm->eap_if->eapSessionIdLen = 0;
1539 }
1540 }
1541
1542
1543 static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
1544 struct sta_info *sta,
1545 struct radius_msg *msg)
1546 {
1547 u8 *attr_class;
1548 size_t class_len;
1549 struct eapol_state_machine *sm = sta->eapol_sm;
1550 int count, i;
1551 struct radius_attr_data *nclass;
1552 size_t nclass_count;
1553
1554 if (!hapd->conf->radius->acct_server || !hapd->radius || !sm)
1555 return;
1556
1557 radius_free_class(&sm->radius_class);
1558 count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
1559 if (count <= 0)
1560 return;
1561
1562 nclass = os_calloc(count, sizeof(struct radius_attr_data));
1563 if (!nclass)
1564 return;
1565
1566 nclass_count = 0;
1567
1568 attr_class = NULL;
1569 for (i = 0; i < count; i++) {
1570 do {
1571 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
1572 &attr_class, &class_len,
1573 attr_class) < 0) {
1574 i = count;
1575 break;
1576 }
1577 } while (class_len < 1);
1578
1579 nclass[nclass_count].data = os_memdup(attr_class, class_len);
1580 if (!nclass[nclass_count].data)
1581 break;
1582
1583 nclass[nclass_count].len = class_len;
1584 nclass_count++;
1585 }
1586
1587 sm->radius_class.attr = nclass;
1588 sm->radius_class.count = nclass_count;
1589 wpa_printf(MSG_DEBUG,
1590 "IEEE 802.1X: Stored %lu RADIUS Class attributes for "
1591 MACSTR,
1592 (unsigned long) sm->radius_class.count,
1593 MAC2STR(sta->addr));
1594 }
1595
1596
1597 /* Update sta->identity based on User-Name attribute in Access-Accept */
1598 static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
1599 struct sta_info *sta,
1600 struct radius_msg *msg)
1601 {
1602 u8 *buf, *identity;
1603 size_t len;
1604 struct eapol_state_machine *sm = sta->eapol_sm;
1605
1606 if (!sm)
1607 return;
1608
1609 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
1610 NULL) < 0)
1611 return;
1612
1613 identity = (u8 *) dup_binstr(buf, len);
1614 if (!identity)
1615 return;
1616
1617 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1618 HOSTAPD_LEVEL_DEBUG,
1619 "old identity '%s' updated with User-Name from Access-Accept '%s'",
1620 sm->identity ? (char *) sm->identity : "N/A",
1621 (char *) identity);
1622
1623 os_free(sm->identity);
1624 sm->identity = identity;
1625 sm->identity_len = len;
1626 }
1627
1628
1629 /* Update CUI based on Chargeable-User-Identity attribute in Access-Accept */
1630 static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd,
1631 struct sta_info *sta,
1632 struct radius_msg *msg)
1633 {
1634 struct eapol_state_machine *sm = sta->eapol_sm;
1635 struct wpabuf *cui;
1636 u8 *buf;
1637 size_t len;
1638
1639 if (!sm)
1640 return;
1641
1642 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
1643 &buf, &len, NULL) < 0)
1644 return;
1645
1646 cui = wpabuf_alloc_copy(buf, len);
1647 if (!cui)
1648 return;
1649
1650 wpabuf_free(sm->radius_cui);
1651 sm->radius_cui = cui;
1652 }
1653
1654
1655 #ifdef CONFIG_HS20
1656
1657 static void ieee802_1x_hs20_sub_rem(struct sta_info *sta, u8 *pos, size_t len)
1658 {
1659 sta->remediation = 1;
1660 os_free(sta->remediation_url);
1661 if (len > 2) {
1662 sta->remediation_url = os_malloc(len);
1663 if (!sta->remediation_url)
1664 return;
1665 sta->remediation_method = pos[0];
1666 os_memcpy(sta->remediation_url, pos + 1, len - 1);
1667 sta->remediation_url[len - 1] = '\0';
1668 wpa_printf(MSG_DEBUG,
1669 "HS 2.0: Subscription remediation needed for "
1670 MACSTR " - server method %u URL %s",
1671 MAC2STR(sta->addr), sta->remediation_method,
1672 sta->remediation_url);
1673 } else {
1674 sta->remediation_url = NULL;
1675 wpa_printf(MSG_DEBUG,
1676 "HS 2.0: Subscription remediation needed for "
1677 MACSTR, MAC2STR(sta->addr));
1678 }
1679 /* TODO: assign the STA into remediation VLAN or add filtering */
1680 }
1681
1682
1683 static void ieee802_1x_hs20_deauth_req(struct hostapd_data *hapd,
1684 struct sta_info *sta, u8 *pos,
1685 size_t len)
1686 {
1687 if (len < 3)
1688 return; /* Malformed information */
1689 sta->hs20_deauth_requested = 1;
1690 wpa_printf(MSG_DEBUG,
1691 "HS 2.0: Deauthentication request - Code %u Re-auth Delay %u",
1692 *pos, WPA_GET_LE16(pos + 1));
1693 wpabuf_free(sta->hs20_deauth_req);
1694 sta->hs20_deauth_req = wpabuf_alloc(len + 1);
1695 if (sta->hs20_deauth_req) {
1696 wpabuf_put_data(sta->hs20_deauth_req, pos, 3);
1697 wpabuf_put_u8(sta->hs20_deauth_req, len - 3);
1698 wpabuf_put_data(sta->hs20_deauth_req, pos + 3, len - 3);
1699 }
1700 ap_sta_session_timeout(hapd, sta, hapd->conf->hs20_deauth_req_timeout);
1701 }
1702
1703
1704 static void ieee802_1x_hs20_session_info(struct hostapd_data *hapd,
1705 struct sta_info *sta, u8 *pos,
1706 size_t len, int session_timeout)
1707 {
1708 unsigned int swt;
1709 int warning_time, beacon_int;
1710
1711 if (len < 1)
1712 return; /* Malformed information */
1713 os_free(sta->hs20_session_info_url);
1714 sta->hs20_session_info_url = os_malloc(len);
1715 if (!sta->hs20_session_info_url)
1716 return;
1717 swt = pos[0];
1718 os_memcpy(sta->hs20_session_info_url, pos + 1, len - 1);
1719 sta->hs20_session_info_url[len - 1] = '\0';
1720 wpa_printf(MSG_DEBUG,
1721 "HS 2.0: Session Information URL='%s' SWT=%u (session_timeout=%d)",
1722 sta->hs20_session_info_url, swt, session_timeout);
1723 if (session_timeout < 0) {
1724 wpa_printf(MSG_DEBUG,
1725 "HS 2.0: No Session-Timeout set - ignore session info URL");
1726 return;
1727 }
1728 if (swt == 255)
1729 swt = 1; /* Use one minute as the AP selected value */
1730
1731 if ((unsigned int) session_timeout < swt * 60)
1732 warning_time = 0;
1733 else
1734 warning_time = session_timeout - swt * 60;
1735
1736 beacon_int = hapd->iconf->beacon_int;
1737 if (beacon_int < 1)
1738 beacon_int = 100; /* best guess */
1739 sta->hs20_disassoc_timer = swt * 60 * 1000 / beacon_int * 125 / 128;
1740 if (sta->hs20_disassoc_timer > 65535)
1741 sta->hs20_disassoc_timer = 65535;
1742
1743 ap_sta_session_warning_timeout(hapd, sta, warning_time);
1744 }
1745
1746
1747 static void ieee802_1x_hs20_t_c_filtering(struct hostapd_data *hapd,
1748 struct sta_info *sta, u8 *pos,
1749 size_t len)
1750 {
1751 if (len < 4)
1752 return; /* Malformed information */
1753 wpa_printf(MSG_DEBUG,
1754 "HS 2.0: Terms and Conditions filtering %02x %02x %02x %02x",
1755 pos[0], pos[1], pos[2], pos[3]);
1756 hs20_t_c_filtering(hapd, sta, pos[0] & BIT(0));
1757 }
1758
1759
1760 static void ieee802_1x_hs20_t_c_url(struct hostapd_data *hapd,
1761 struct sta_info *sta, u8 *pos, size_t len)
1762 {
1763 os_free(sta->t_c_url);
1764 sta->t_c_url = os_malloc(len + 1);
1765 if (!sta->t_c_url)
1766 return;
1767 os_memcpy(sta->t_c_url, pos, len);
1768 sta->t_c_url[len] = '\0';
1769 wpa_printf(MSG_DEBUG,
1770 "HS 2.0: Terms and Conditions URL %s", sta->t_c_url);
1771 }
1772
1773 #endif /* CONFIG_HS20 */
1774
1775
1776 static void ieee802_1x_check_hs20(struct hostapd_data *hapd,
1777 struct sta_info *sta,
1778 struct radius_msg *msg,
1779 int session_timeout)
1780 {
1781 #ifdef CONFIG_HS20
1782 u8 *buf, *pos, *end, type, sublen;
1783 size_t len;
1784
1785 buf = NULL;
1786 sta->remediation = 0;
1787 sta->hs20_deauth_requested = 0;
1788
1789 for (;;) {
1790 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_VENDOR_SPECIFIC,
1791 &buf, &len, buf) < 0)
1792 break;
1793 if (len < 6)
1794 continue;
1795 pos = buf;
1796 end = buf + len;
1797 if (WPA_GET_BE32(pos) != RADIUS_VENDOR_ID_WFA)
1798 continue;
1799 pos += 4;
1800
1801 type = *pos++;
1802 sublen = *pos++;
1803 if (sublen < 2)
1804 continue; /* invalid length */
1805 sublen -= 2; /* skip header */
1806 if (pos + sublen > end)
1807 continue; /* invalid WFA VSA */
1808
1809 switch (type) {
1810 case RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION:
1811 ieee802_1x_hs20_sub_rem(sta, pos, sublen);
1812 break;
1813 case RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ:
1814 ieee802_1x_hs20_deauth_req(hapd, sta, pos, sublen);
1815 break;
1816 case RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL:
1817 ieee802_1x_hs20_session_info(hapd, sta, pos, sublen,
1818 session_timeout);
1819 break;
1820 case RADIUS_VENDOR_ATTR_WFA_HS20_T_C_FILTERING:
1821 ieee802_1x_hs20_t_c_filtering(hapd, sta, pos, sublen);
1822 break;
1823 case RADIUS_VENDOR_ATTR_WFA_HS20_T_C_URL:
1824 ieee802_1x_hs20_t_c_url(hapd, sta, pos, sublen);
1825 break;
1826 }
1827 }
1828 #endif /* CONFIG_HS20 */
1829 }
1830
1831
1832 struct sta_id_search {
1833 u8 identifier;
1834 struct eapol_state_machine *sm;
1835 };
1836
1837
1838 static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
1839 struct sta_info *sta,
1840 void *ctx)
1841 {
1842 struct sta_id_search *id_search = ctx;
1843 struct eapol_state_machine *sm = sta->eapol_sm;
1844
1845 if (sm && sm->radius_identifier >= 0 &&
1846 sm->radius_identifier == id_search->identifier) {
1847 id_search->sm = sm;
1848 return 1;
1849 }
1850 return 0;
1851 }
1852
1853
1854 static struct eapol_state_machine *
1855 ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
1856 {
1857 struct sta_id_search id_search;
1858
1859 id_search.identifier = identifier;
1860 id_search.sm = NULL;
1861 ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
1862 return id_search.sm;
1863 }
1864
1865
1866 #ifndef CONFIG_NO_VLAN
1867 static int ieee802_1x_update_vlan(struct radius_msg *msg,
1868 struct hostapd_data *hapd,
1869 struct sta_info *sta)
1870 {
1871 struct vlan_description vlan_desc;
1872
1873 os_memset(&vlan_desc, 0, sizeof(vlan_desc));
1874 vlan_desc.notempty = !!radius_msg_get_vlanid(msg, &vlan_desc.untagged,
1875 MAX_NUM_TAGGED_VLAN,
1876 vlan_desc.tagged);
1877
1878 if (vlan_desc.notempty &&
1879 !hostapd_vlan_valid(hapd->conf->vlan, &vlan_desc)) {
1880 sta->eapol_sm->authFail = TRUE;
1881 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS,
1882 HOSTAPD_LEVEL_INFO,
1883 "Invalid VLAN %d%s received from RADIUS server",
1884 vlan_desc.untagged,
1885 vlan_desc.tagged[0] ? "+" : "");
1886 os_memset(&vlan_desc, 0, sizeof(vlan_desc));
1887 ap_sta_set_vlan(hapd, sta, &vlan_desc);
1888 return -1;
1889 }
1890
1891 if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_REQUIRED &&
1892 !vlan_desc.notempty) {
1893 sta->eapol_sm->authFail = TRUE;
1894 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1895 HOSTAPD_LEVEL_INFO,
1896 "authentication server did not include required VLAN ID in Access-Accept");
1897 return -1;
1898 }
1899
1900 return ap_sta_set_vlan(hapd, sta, &vlan_desc);
1901 }
1902 #endif /* CONFIG_NO_VLAN */
1903
1904
1905 /**
1906 * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
1907 * @msg: RADIUS response message
1908 * @req: RADIUS request message
1909 * @shared_secret: RADIUS shared secret
1910 * @shared_secret_len: Length of shared_secret in octets
1911 * @data: Context data (struct hostapd_data *)
1912 * Returns: Processing status
1913 */
1914 static RadiusRxResult
1915 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
1916 const u8 *shared_secret, size_t shared_secret_len,
1917 void *data)
1918 {
1919 struct hostapd_data *hapd = data;
1920 struct sta_info *sta;
1921 u32 session_timeout = 0, termination_action, acct_interim_interval;
1922 int session_timeout_set;
1923 u32 reason_code;
1924 struct eapol_state_machine *sm;
1925 int override_eapReq = 0;
1926 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
1927
1928 sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
1929 if (!sm) {
1930 wpa_printf(MSG_DEBUG,
1931 "IEEE 802.1X: Could not find matching station for this RADIUS message");
1932 return RADIUS_RX_UNKNOWN;
1933 }
1934 sta = sm->sta;
1935
1936 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
1937 * present when packet contains an EAP-Message attribute */
1938 if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
1939 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
1940 0) < 0 &&
1941 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
1942 wpa_printf(MSG_DEBUG,
1943 "Allowing RADIUS Access-Reject without Message-Authenticator since it does not include EAP-Message");
1944 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
1945 req, 1)) {
1946 wpa_printf(MSG_INFO,
1947 "Incoming RADIUS packet did not have correct Message-Authenticator - dropped");
1948 return RADIUS_RX_INVALID_AUTHENTICATOR;
1949 }
1950
1951 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
1952 hdr->code != RADIUS_CODE_ACCESS_REJECT &&
1953 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
1954 wpa_printf(MSG_INFO, "Unknown RADIUS message code");
1955 return RADIUS_RX_UNKNOWN;
1956 }
1957
1958 sm->radius_identifier = -1;
1959 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
1960 MAC2STR(sta->addr));
1961
1962 radius_msg_free(sm->last_recv_radius);
1963 sm->last_recv_radius = msg;
1964
1965 session_timeout_set =
1966 !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
1967 &session_timeout);
1968 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
1969 &termination_action))
1970 termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
1971
1972 if (hapd->conf->acct_interim_interval == 0 &&
1973 hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
1974 radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
1975 &acct_interim_interval) == 0) {
1976 if (acct_interim_interval < 60) {
1977 hostapd_logger(hapd, sta->addr,
1978 HOSTAPD_MODULE_IEEE8021X,
1979 HOSTAPD_LEVEL_INFO,
1980 "ignored too small Acct-Interim-Interval %d",
1981 acct_interim_interval);
1982 } else
1983 sta->acct_interim_interval = acct_interim_interval;
1984 }
1985
1986
1987 switch (hdr->code) {
1988 case RADIUS_CODE_ACCESS_ACCEPT:
1989 #ifndef CONFIG_NO_VLAN
1990 if (hapd->conf->ssid.dynamic_vlan != DYNAMIC_VLAN_DISABLED &&
1991 ieee802_1x_update_vlan(msg, hapd, sta) < 0)
1992 break;
1993
1994 if (sta->vlan_id > 0) {
1995 hostapd_logger(hapd, sta->addr,
1996 HOSTAPD_MODULE_RADIUS,
1997 HOSTAPD_LEVEL_INFO,
1998 "VLAN ID %d", sta->vlan_id);
1999 }
2000
2001 if ((sta->flags & WLAN_STA_ASSOC) &&
2002 ap_sta_bind_vlan(hapd, sta) < 0)
2003 break;
2004 #endif /* CONFIG_NO_VLAN */
2005
2006 sta->session_timeout_set = !!session_timeout_set;
2007 os_get_reltime(&sta->session_timeout);
2008 sta->session_timeout.sec += session_timeout;
2009
2010 /* RFC 3580, Ch. 3.17 */
2011 if (session_timeout_set && termination_action ==
2012 RADIUS_TERMINATION_ACTION_RADIUS_REQUEST)
2013 sm->reAuthPeriod = session_timeout;
2014 else if (session_timeout_set)
2015 ap_sta_session_timeout(hapd, sta, session_timeout);
2016 else
2017 ap_sta_no_session_timeout(hapd, sta);
2018
2019 sm->eap_if->aaaSuccess = TRUE;
2020 override_eapReq = 1;
2021 ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
2022 shared_secret_len);
2023 ieee802_1x_store_radius_class(hapd, sta, msg);
2024 ieee802_1x_update_sta_identity(hapd, sta, msg);
2025 ieee802_1x_update_sta_cui(hapd, sta, msg);
2026 ieee802_1x_check_hs20(hapd, sta, msg,
2027 session_timeout_set ?
2028 (int) session_timeout : -1);
2029 break;
2030 case RADIUS_CODE_ACCESS_REJECT:
2031 sm->eap_if->aaaFail = TRUE;
2032 override_eapReq = 1;
2033 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_WLAN_REASON_CODE,
2034 &reason_code) == 0) {
2035 wpa_printf(MSG_DEBUG,
2036 "RADIUS server indicated WLAN-Reason-Code %u in Access-Reject for "
2037 MACSTR, reason_code, MAC2STR(sta->addr));
2038 sta->disconnect_reason_code = reason_code;
2039 }
2040 break;
2041 case RADIUS_CODE_ACCESS_CHALLENGE:
2042 sm->eap_if->aaaEapReq = TRUE;
2043 if (session_timeout_set) {
2044 /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
2045 sm->eap_if->aaaMethodTimeout = session_timeout;
2046 hostapd_logger(hapd, sm->addr,
2047 HOSTAPD_MODULE_IEEE8021X,
2048 HOSTAPD_LEVEL_DEBUG,
2049 "using EAP timeout of %d seconds (from RADIUS)",
2050 sm->eap_if->aaaMethodTimeout);
2051 } else {
2052 /*
2053 * Use dynamic retransmission behavior per EAP
2054 * specification.
2055 */
2056 sm->eap_if->aaaMethodTimeout = 0;
2057 }
2058 break;
2059 }
2060
2061 ieee802_1x_decapsulate_radius(hapd, sta);
2062 if (override_eapReq)
2063 sm->eap_if->aaaEapReq = FALSE;
2064
2065 #ifdef CONFIG_FILS
2066 #ifdef NEED_AP_MLME
2067 if (sta->flags & WLAN_STA_PENDING_FILS_ERP) {
2068 /* TODO: Add a PMKSA entry on success? */
2069 ieee802_11_finish_fils_auth(
2070 hapd, sta, hdr->code == RADIUS_CODE_ACCESS_ACCEPT,
2071 sm->eap_if->aaaEapReqData,
2072 sm->eap_if->aaaEapKeyData,
2073 sm->eap_if->aaaEapKeyDataLen);
2074 }
2075 #endif /* NEED_AP_MLME */
2076 #endif /* CONFIG_FILS */
2077
2078 eapol_auth_step(sm);
2079
2080 return RADIUS_RX_QUEUED;
2081 }
2082 #endif /* CONFIG_NO_RADIUS */
2083
2084
2085 void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
2086 {
2087 struct eapol_state_machine *sm = sta->eapol_sm;
2088
2089 if (!sm)
2090 return;
2091
2092 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
2093 HOSTAPD_LEVEL_DEBUG, "aborting authentication");
2094
2095 #ifndef CONFIG_NO_RADIUS
2096 radius_msg_free(sm->last_recv_radius);
2097 sm->last_recv_radius = NULL;
2098 #endif /* CONFIG_NO_RADIUS */
2099
2100 if (sm->eap_if->eapTimeout) {
2101 /*
2102 * Disconnect the STA since it did not reply to the last EAP
2103 * request and we cannot continue EAP processing (EAP-Failure
2104 * could only be sent if the EAP peer actually replied).
2105 */
2106 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "EAP Timeout, STA " MACSTR,
2107 MAC2STR(sta->addr));
2108
2109 sm->eap_if->portEnabled = FALSE;
2110 ap_sta_disconnect(hapd, sta, sta->addr,
2111 WLAN_REASON_PREV_AUTH_NOT_VALID);
2112 }
2113 }
2114
2115
2116 static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
2117 {
2118 struct eapol_authenticator *eapol = hapd->eapol_auth;
2119
2120 if (hapd->conf->default_wep_key_len < 1)
2121 return 0;
2122
2123 os_free(eapol->default_wep_key);
2124 eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
2125 if (!eapol->default_wep_key ||
2126 random_get_bytes(eapol->default_wep_key,
2127 hapd->conf->default_wep_key_len)) {
2128 wpa_printf(MSG_INFO, "Could not generate random WEP key");
2129 os_free(eapol->default_wep_key);
2130 eapol->default_wep_key = NULL;
2131 return -1;
2132 }
2133
2134 wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
2135 eapol->default_wep_key,
2136 hapd->conf->default_wep_key_len);
2137
2138 return 0;
2139 }
2140
2141
2142 static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
2143 struct sta_info *sta, void *ctx)
2144 {
2145 if (sta->eapol_sm) {
2146 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
2147 eapol_auth_step(sta->eapol_sm);
2148 }
2149 return 0;
2150 }
2151
2152
2153 static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
2154 {
2155 struct hostapd_data *hapd = eloop_ctx;
2156 struct eapol_authenticator *eapol = hapd->eapol_auth;
2157
2158 if (eapol->default_wep_key_idx >= 3)
2159 eapol->default_wep_key_idx =
2160 hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
2161 else
2162 eapol->default_wep_key_idx++;
2163
2164 wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
2165 eapol->default_wep_key_idx);
2166
2167 if (ieee802_1x_rekey_broadcast(hapd)) {
2168 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
2169 HOSTAPD_LEVEL_WARNING,
2170 "failed to generate a new broadcast key");
2171 os_free(eapol->default_wep_key);
2172 eapol->default_wep_key = NULL;
2173 return;
2174 }
2175
2176 /* TODO: Could setup key for RX here, but change default TX keyid only
2177 * after new broadcast key has been sent to all stations. */
2178 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
2179 broadcast_ether_addr,
2180 eapol->default_wep_key_idx, 0, 1, NULL, 0,
2181 eapol->default_wep_key,
2182 hapd->conf->default_wep_key_len)) {
2183 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
2184 HOSTAPD_LEVEL_WARNING,
2185 "failed to configure a new broadcast key");
2186 os_free(eapol->default_wep_key);
2187 eapol->default_wep_key = NULL;
2188 return;
2189 }
2190
2191 ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
2192
2193 if (hapd->conf->wep_rekeying_period > 0) {
2194 eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
2195 ieee802_1x_rekey, hapd, NULL);
2196 }
2197 }
2198
2199
2200 static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
2201 const u8 *data, size_t datalen)
2202 {
2203 #ifdef CONFIG_WPS
2204 struct sta_info *sta = sta_ctx;
2205
2206 if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
2207 WLAN_STA_MAYBE_WPS) {
2208 const u8 *identity;
2209 size_t identity_len;
2210 struct eapol_state_machine *sm = sta->eapol_sm;
2211
2212 identity = eap_get_identity(sm->eap, &identity_len);
2213 if (identity &&
2214 ((identity_len == WSC_ID_ENROLLEE_LEN &&
2215 os_memcmp(identity, WSC_ID_ENROLLEE,
2216 WSC_ID_ENROLLEE_LEN) == 0) ||
2217 (identity_len == WSC_ID_REGISTRAR_LEN &&
2218 os_memcmp(identity, WSC_ID_REGISTRAR,
2219 WSC_ID_REGISTRAR_LEN) == 0))) {
2220 wpa_printf(MSG_DEBUG,
2221 "WPS: WLAN_STA_MAYBE_WPS -> WLAN_STA_WPS");
2222 sta->flags |= WLAN_STA_WPS;
2223 }
2224 }
2225 #endif /* CONFIG_WPS */
2226
2227 ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
2228 }
2229
2230
2231 static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
2232 const u8 *data, size_t datalen)
2233 {
2234 #ifndef CONFIG_NO_RADIUS
2235 struct hostapd_data *hapd = ctx;
2236 struct sta_info *sta = sta_ctx;
2237
2238 ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
2239 #endif /* CONFIG_NO_RADIUS */
2240 }
2241
2242
2243 static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
2244 int preauth, int remediation)
2245 {
2246 struct hostapd_data *hapd = ctx;
2247 struct sta_info *sta = sta_ctx;
2248
2249 if (preauth)
2250 rsn_preauth_finished(hapd, sta, success);
2251 else
2252 ieee802_1x_finished(hapd, sta, success, remediation);
2253 }
2254
2255
2256 static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
2257 size_t identity_len, int phase2,
2258 struct eap_user *user)
2259 {
2260 struct hostapd_data *hapd = ctx;
2261 const struct hostapd_eap_user *eap_user;
2262 int i;
2263 int rv = -1;
2264
2265 eap_user = hostapd_get_eap_user(hapd, identity, identity_len, phase2);
2266 if (!eap_user)
2267 goto out;
2268
2269 os_memset(user, 0, sizeof(*user));
2270 user->phase2 = phase2;
2271 for (i = 0; i < EAP_MAX_METHODS; i++) {
2272 user->methods[i].vendor = eap_user->methods[i].vendor;
2273 user->methods[i].method = eap_user->methods[i].method;
2274 }
2275
2276 if (eap_user->password) {
2277 user->password = os_memdup(eap_user->password,
2278 eap_user->password_len);
2279 if (!user->password)
2280 goto out;
2281 user->password_len = eap_user->password_len;
2282 user->password_hash = eap_user->password_hash;
2283 if (eap_user->salt && eap_user->salt_len) {
2284 user->salt = os_memdup(eap_user->salt,
2285 eap_user->salt_len);
2286 if (!user->salt)
2287 goto out;
2288 user->salt_len = eap_user->salt_len;
2289 }
2290 }
2291 user->force_version = eap_user->force_version;
2292 user->macacl = eap_user->macacl;
2293 user->ttls_auth = eap_user->ttls_auth;
2294 user->remediation = eap_user->remediation;
2295 rv = 0;
2296
2297 out:
2298 if (rv)
2299 wpa_printf(MSG_DEBUG, "%s: Failed to find user", __func__);
2300
2301 return rv;
2302 }
2303
2304
2305 static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
2306 {
2307 struct hostapd_data *hapd = ctx;
2308 struct sta_info *sta;
2309
2310 sta = ap_get_sta(hapd, addr);
2311 if (!sta || !sta->eapol_sm)
2312 return 0;
2313 return 1;
2314 }
2315
2316
2317 static void ieee802_1x_logger(void *ctx, const u8 *addr,
2318 eapol_logger_level level, const char *txt)
2319 {
2320 #ifndef CONFIG_NO_HOSTAPD_LOGGER
2321 struct hostapd_data *hapd = ctx;
2322 int hlevel;
2323
2324 switch (level) {
2325 case EAPOL_LOGGER_WARNING:
2326 hlevel = HOSTAPD_LEVEL_WARNING;
2327 break;
2328 case EAPOL_LOGGER_INFO:
2329 hlevel = HOSTAPD_LEVEL_INFO;
2330 break;
2331 case EAPOL_LOGGER_DEBUG:
2332 default:
2333 hlevel = HOSTAPD_LEVEL_DEBUG;
2334 break;
2335 }
2336
2337 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
2338 txt);
2339 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
2340 }
2341
2342
2343 static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
2344 int authorized)
2345 {
2346 struct hostapd_data *hapd = ctx;
2347 struct sta_info *sta = sta_ctx;
2348
2349 ieee802_1x_set_sta_authorized(hapd, sta, authorized);
2350 }
2351
2352
2353 static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
2354 {
2355 struct hostapd_data *hapd = ctx;
2356 struct sta_info *sta = sta_ctx;
2357
2358 ieee802_1x_abort_auth(hapd, sta);
2359 }
2360
2361
2362 static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
2363 {
2364 #ifndef CONFIG_FIPS
2365 #ifndef CONFIG_NO_RC4
2366 struct hostapd_data *hapd = ctx;
2367 struct sta_info *sta = sta_ctx;
2368
2369 ieee802_1x_tx_key(hapd, sta);
2370 #endif /* CONFIG_NO_RC4 */
2371 #endif /* CONFIG_FIPS */
2372 }
2373
2374
2375 static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
2376 enum eapol_event type)
2377 {
2378 /* struct hostapd_data *hapd = ctx; */
2379 struct sta_info *sta = sta_ctx;
2380
2381 switch (type) {
2382 case EAPOL_AUTH_SM_CHANGE:
2383 wpa_auth_sm_notify(sta->wpa_sm);
2384 break;
2385 case EAPOL_AUTH_REAUTHENTICATE:
2386 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
2387 break;
2388 }
2389 }
2390
2391
2392 #ifdef CONFIG_ERP
2393
2394 static struct eap_server_erp_key *
2395 ieee802_1x_erp_get_key(void *ctx, const char *keyname)
2396 {
2397 struct hostapd_data *hapd = ctx;
2398 struct eap_server_erp_key *erp;
2399
2400 dl_list_for_each(erp, &hapd->erp_keys, struct eap_server_erp_key,
2401 list) {
2402 if (os_strcmp(erp->keyname_nai, keyname) == 0)
2403 return erp;
2404 }
2405
2406 return NULL;
2407 }
2408
2409
2410 static int ieee802_1x_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
2411 {
2412 struct hostapd_data *hapd = ctx;
2413
2414 dl_list_add(&hapd->erp_keys, &erp->list);
2415 return 0;
2416 }
2417
2418 #endif /* CONFIG_ERP */
2419
2420
2421 int ieee802_1x_init(struct hostapd_data *hapd)
2422 {
2423 int i;
2424 struct eapol_auth_config conf;
2425 struct eapol_auth_cb cb;
2426
2427 dl_list_init(&hapd->erp_keys);
2428
2429 os_memset(&conf, 0, sizeof(conf));
2430 conf.eap_cfg = hapd->eap_cfg;
2431 conf.ctx = hapd;
2432 conf.eap_reauth_period = hapd->conf->eap_reauth_period;
2433 conf.wpa = hapd->conf->wpa;
2434 conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
2435 conf.eap_req_id_text = hapd->conf->eap_req_id_text;
2436 conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
2437 conf.erp_send_reauth_start = hapd->conf->erp_send_reauth_start;
2438 conf.erp_domain = hapd->conf->erp_domain;
2439
2440 os_memset(&cb, 0, sizeof(cb));
2441 cb.eapol_send = ieee802_1x_eapol_send;
2442 cb.aaa_send = ieee802_1x_aaa_send;
2443 cb.finished = _ieee802_1x_finished;
2444 cb.get_eap_user = ieee802_1x_get_eap_user;
2445 cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
2446 cb.logger = ieee802_1x_logger;
2447 cb.set_port_authorized = ieee802_1x_set_port_authorized;
2448 cb.abort_auth = _ieee802_1x_abort_auth;
2449 cb.tx_key = _ieee802_1x_tx_key;
2450 cb.eapol_event = ieee802_1x_eapol_event;
2451 #ifdef CONFIG_ERP
2452 cb.erp_get_key = ieee802_1x_erp_get_key;
2453 cb.erp_add_key = ieee802_1x_erp_add_key;
2454 #endif /* CONFIG_ERP */
2455
2456 hapd->eapol_auth = eapol_auth_init(&conf, &cb);
2457 if (!hapd->eapol_auth)
2458 return -1;
2459
2460 if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
2461 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
2462 return -1;
2463
2464 #ifndef CONFIG_NO_RADIUS
2465 if (radius_client_register(hapd->radius, RADIUS_AUTH,
2466 ieee802_1x_receive_auth, hapd))
2467 return -1;
2468 #endif /* CONFIG_NO_RADIUS */
2469
2470 if (hapd->conf->default_wep_key_len) {
2471 for (i = 0; i < 4; i++)
2472 hostapd_drv_set_key(hapd->conf->iface, hapd,
2473 WPA_ALG_NONE, NULL, i, 0, 0, NULL,
2474 0, NULL, 0);
2475
2476 ieee802_1x_rekey(hapd, NULL);
2477
2478 if (!hapd->eapol_auth->default_wep_key)
2479 return -1;
2480 }
2481
2482 return 0;
2483 }
2484
2485
2486 void ieee802_1x_erp_flush(struct hostapd_data *hapd)
2487 {
2488 struct eap_server_erp_key *erp;
2489
2490 while ((erp = dl_list_first(&hapd->erp_keys, struct eap_server_erp_key,
2491 list)) != NULL) {
2492 dl_list_del(&erp->list);
2493 bin_clear_free(erp, sizeof(*erp));
2494 }
2495 }
2496
2497
2498 void ieee802_1x_deinit(struct hostapd_data *hapd)
2499 {
2500 eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
2501
2502 if (hapd->driver && hapd->drv_priv &&
2503 (hapd->conf->ieee802_1x || hapd->conf->wpa))
2504 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
2505
2506 eapol_auth_deinit(hapd->eapol_auth);
2507 hapd->eapol_auth = NULL;
2508
2509 ieee802_1x_erp_flush(hapd);
2510 }
2511
2512
2513 int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2514 const u8 *buf, size_t len, int ack)
2515 {
2516 struct ieee80211_hdr *hdr;
2517 u8 *pos;
2518 const unsigned char rfc1042_hdr[ETH_ALEN] =
2519 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
2520
2521 if (!sta)
2522 return -1;
2523 if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2)
2524 return 0;
2525
2526 hdr = (struct ieee80211_hdr *) buf;
2527 pos = (u8 *) (hdr + 1);
2528 if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
2529 return 0;
2530 pos += sizeof(rfc1042_hdr);
2531 if (WPA_GET_BE16(pos) != ETH_P_PAE)
2532 return 0;
2533 pos += 2;
2534
2535 return ieee802_1x_eapol_tx_status(hapd, sta, pos, buf + len - pos,
2536 ack);
2537 }
2538
2539
2540 int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2541 const u8 *buf, int len, int ack)
2542 {
2543 const struct ieee802_1x_hdr *xhdr =
2544 (const struct ieee802_1x_hdr *) buf;
2545 const u8 *pos = buf + sizeof(*xhdr);
2546 struct ieee802_1x_eapol_key *key;
2547
2548 if (len < (int) sizeof(*xhdr))
2549 return 0;
2550 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
2551 " TX status - version=%d type=%d length=%d - ack=%d",
2552 MAC2STR(sta->addr), xhdr->version, xhdr->type,
2553 be_to_host16(xhdr->length), ack);
2554
2555 #ifdef CONFIG_WPS
2556 if (xhdr->type == IEEE802_1X_TYPE_EAP_PACKET && ack &&
2557 (sta->flags & WLAN_STA_WPS) &&
2558 ap_sta_pending_delayed_1x_auth_fail_disconnect(hapd, sta)) {
2559 wpa_printf(MSG_DEBUG,
2560 "WPS: Indicate EAP completion on ACK for EAP-Failure");
2561 hostapd_wps_eap_completed(hapd);
2562 }
2563 #endif /* CONFIG_WPS */
2564
2565 if (xhdr->type != IEEE802_1X_TYPE_EAPOL_KEY)
2566 return 0;
2567
2568 if (pos + sizeof(struct wpa_eapol_key) <= buf + len) {
2569 const struct wpa_eapol_key *wpa;
2570
2571 wpa = (const struct wpa_eapol_key *) pos;
2572 if (wpa->type == EAPOL_KEY_TYPE_RSN ||
2573 wpa->type == EAPOL_KEY_TYPE_WPA)
2574 wpa_auth_eapol_key_tx_status(hapd->wpa_auth,
2575 sta->wpa_sm, ack);
2576 }
2577
2578 /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
2579 * or Authenticator state machines, but EAPOL-Key packets are not
2580 * retransmitted in case of failure. Try to re-send failed EAPOL-Key
2581 * packets couple of times because otherwise STA keys become
2582 * unsynchronized with AP. */
2583 if (!ack && pos + sizeof(*key) <= buf + len) {
2584 key = (struct ieee802_1x_eapol_key *) pos;
2585 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
2586 HOSTAPD_LEVEL_DEBUG,
2587 "did not Ack EAPOL-Key frame (%scast index=%d)",
2588 key->key_index & BIT(7) ? "uni" : "broad",
2589 key->key_index & ~BIT(7));
2590 /* TODO: re-send EAPOL-Key couple of times (with short delay
2591 * between them?). If all attempt fail, report error and
2592 * deauthenticate STA so that it will get new keys when
2593 * authenticating again (e.g., after returning in range).
2594 * Separate limit/transmit state needed both for unicast and
2595 * broadcast keys(?) */
2596 }
2597 /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
2598 * to here and change the key only if the EAPOL-Key packet was Acked.
2599 */
2600
2601 return 1;
2602 }
2603
2604
2605 u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
2606 {
2607 if (!sm || !sm->identity)
2608 return NULL;
2609
2610 *len = sm->identity_len;
2611 return sm->identity;
2612 }
2613
2614
2615 u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
2616 int idx)
2617 {
2618 if (!sm || !sm->radius_class.attr ||
2619 idx >= (int) sm->radius_class.count)
2620 return NULL;
2621
2622 *len = sm->radius_class.attr[idx].len;
2623 return sm->radius_class.attr[idx].data;
2624 }
2625
2626
2627 struct wpabuf * ieee802_1x_get_radius_cui(struct eapol_state_machine *sm)
2628 {
2629 if (!sm)
2630 return NULL;
2631 return sm->radius_cui;
2632 }
2633
2634
2635 const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
2636 {
2637 *len = 0;
2638 if (!sm)
2639 return NULL;
2640
2641 *len = sm->eap_if->eapKeyDataLen;
2642 return sm->eap_if->eapKeyData;
2643 }
2644
2645
2646 #ifdef CONFIG_MACSEC
2647 const u8 * ieee802_1x_get_session_id(struct eapol_state_machine *sm,
2648 size_t *len)
2649 {
2650 *len = 0;
2651 if (!sm || !sm->eap_if)
2652 return NULL;
2653
2654 *len = sm->eap_if->eapSessionIdLen;
2655 return sm->eap_if->eapSessionId;
2656 }
2657 #endif /* CONFIG_MACSEC */
2658
2659
2660 void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
2661 int enabled)
2662 {
2663 if (!sm)
2664 return;
2665 sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
2666 eapol_auth_step(sm);
2667 }
2668
2669
2670 void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
2671 int valid)
2672 {
2673 if (!sm)
2674 return;
2675 sm->portValid = valid ? TRUE : FALSE;
2676 eapol_auth_step(sm);
2677 }
2678
2679
2680 void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
2681 {
2682 if (!sm)
2683 return;
2684 if (pre_auth)
2685 sm->flags |= EAPOL_SM_PREAUTH;
2686 else
2687 sm->flags &= ~EAPOL_SM_PREAUTH;
2688 }
2689
2690
2691 static const char * bool_txt(Boolean val)
2692 {
2693 return val ? "TRUE" : "FALSE";
2694 }
2695
2696
2697 int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2698 {
2699 /* TODO */
2700 return 0;
2701 }
2702
2703
2704 int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2705 char *buf, size_t buflen)
2706 {
2707 int len = 0, ret;
2708 struct eapol_state_machine *sm = sta->eapol_sm;
2709 struct os_reltime diff;
2710 const char *name1;
2711 const char *name2;
2712 char *identity_buf = NULL;
2713
2714 if (!sm)
2715 return 0;
2716
2717 ret = os_snprintf(buf + len, buflen - len,
2718 "dot1xPaePortNumber=%d\n"
2719 "dot1xPaePortProtocolVersion=%d\n"
2720 "dot1xPaePortCapabilities=1\n"
2721 "dot1xPaePortInitialize=%d\n"
2722 "dot1xPaePortReauthenticate=FALSE\n",
2723 sta->aid,
2724 EAPOL_VERSION,
2725 sm->initialize);
2726 if (os_snprintf_error(buflen - len, ret))
2727 return len;
2728 len += ret;
2729
2730 /* dot1xAuthConfigTable */
2731 ret = os_snprintf(buf + len, buflen - len,
2732 "dot1xAuthPaeState=%d\n"
2733 "dot1xAuthBackendAuthState=%d\n"
2734 "dot1xAuthAdminControlledDirections=%d\n"
2735 "dot1xAuthOperControlledDirections=%d\n"
2736 "dot1xAuthAuthControlledPortStatus=%d\n"
2737 "dot1xAuthAuthControlledPortControl=%d\n"
2738 "dot1xAuthQuietPeriod=%u\n"
2739 "dot1xAuthServerTimeout=%u\n"
2740 "dot1xAuthReAuthPeriod=%u\n"
2741 "dot1xAuthReAuthEnabled=%s\n"
2742 "dot1xAuthKeyTxEnabled=%s\n",
2743 sm->auth_pae_state + 1,
2744 sm->be_auth_state + 1,
2745 sm->adminControlledDirections,
2746 sm->operControlledDirections,
2747 sm->authPortStatus,
2748 sm->portControl,
2749 sm->quietPeriod,
2750 sm->serverTimeout,
2751 sm->reAuthPeriod,
2752 bool_txt(sm->reAuthEnabled),
2753 bool_txt(sm->keyTxEnabled));
2754 if (os_snprintf_error(buflen - len, ret))
2755 return len;
2756 len += ret;
2757
2758 /* dot1xAuthStatsTable */
2759 ret = os_snprintf(buf + len, buflen - len,
2760 "dot1xAuthEapolFramesRx=%u\n"
2761 "dot1xAuthEapolFramesTx=%u\n"
2762 "dot1xAuthEapolStartFramesRx=%u\n"
2763 "dot1xAuthEapolLogoffFramesRx=%u\n"
2764 "dot1xAuthEapolRespIdFramesRx=%u\n"
2765 "dot1xAuthEapolRespFramesRx=%u\n"
2766 "dot1xAuthEapolReqIdFramesTx=%u\n"
2767 "dot1xAuthEapolReqFramesTx=%u\n"
2768 "dot1xAuthInvalidEapolFramesRx=%u\n"
2769 "dot1xAuthEapLengthErrorFramesRx=%u\n"
2770 "dot1xAuthLastEapolFrameVersion=%u\n"
2771 "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
2772 sm->dot1xAuthEapolFramesRx,
2773 sm->dot1xAuthEapolFramesTx,
2774 sm->dot1xAuthEapolStartFramesRx,
2775 sm->dot1xAuthEapolLogoffFramesRx,
2776 sm->dot1xAuthEapolRespIdFramesRx,
2777 sm->dot1xAuthEapolRespFramesRx,
2778 sm->dot1xAuthEapolReqIdFramesTx,
2779 sm->dot1xAuthEapolReqFramesTx,
2780 sm->dot1xAuthInvalidEapolFramesRx,
2781 sm->dot1xAuthEapLengthErrorFramesRx,
2782 sm->dot1xAuthLastEapolFrameVersion,
2783 MAC2STR(sm->addr));
2784 if (os_snprintf_error(buflen - len, ret))
2785 return len;
2786 len += ret;
2787
2788 /* dot1xAuthDiagTable */
2789 ret = os_snprintf(buf + len, buflen - len,
2790 "dot1xAuthEntersConnecting=%u\n"
2791 "dot1xAuthEapLogoffsWhileConnecting=%u\n"
2792 "dot1xAuthEntersAuthenticating=%u\n"
2793 "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
2794 "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
2795 "dot1xAuthAuthFailWhileAuthenticating=%u\n"
2796 "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
2797 "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
2798 "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
2799 "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
2800 "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
2801 "dot1xAuthBackendResponses=%u\n"
2802 "dot1xAuthBackendAccessChallenges=%u\n"
2803 "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
2804 "dot1xAuthBackendAuthSuccesses=%u\n"
2805 "dot1xAuthBackendAuthFails=%u\n",
2806 sm->authEntersConnecting,
2807 sm->authEapLogoffsWhileConnecting,
2808 sm->authEntersAuthenticating,
2809 sm->authAuthSuccessesWhileAuthenticating,
2810 sm->authAuthTimeoutsWhileAuthenticating,
2811 sm->authAuthFailWhileAuthenticating,
2812 sm->authAuthEapStartsWhileAuthenticating,
2813 sm->authAuthEapLogoffWhileAuthenticating,
2814 sm->authAuthReauthsWhileAuthenticated,
2815 sm->authAuthEapStartsWhileAuthenticated,
2816 sm->authAuthEapLogoffWhileAuthenticated,
2817 sm->backendResponses,
2818 sm->backendAccessChallenges,
2819 sm->backendOtherRequestsToSupplicant,
2820 sm->backendAuthSuccesses,
2821 sm->backendAuthFails);
2822 if (os_snprintf_error(buflen - len, ret))
2823 return len;
2824 len += ret;
2825
2826 /* dot1xAuthSessionStatsTable */
2827 os_reltime_age(&sta->acct_session_start, &diff);
2828 if (sm->eap && !sm->identity) {
2829 const u8 *id;
2830 size_t id_len;
2831
2832 id = eap_get_identity(sm->eap, &id_len);
2833 if (id)
2834 identity_buf = dup_binstr(id, id_len);
2835 }
2836 ret = os_snprintf(buf + len, buflen - len,
2837 /* TODO: dot1xAuthSessionOctetsRx */
2838 /* TODO: dot1xAuthSessionOctetsTx */
2839 /* TODO: dot1xAuthSessionFramesRx */
2840 /* TODO: dot1xAuthSessionFramesTx */
2841 "dot1xAuthSessionId=%016llX\n"
2842 "dot1xAuthSessionAuthenticMethod=%d\n"
2843 "dot1xAuthSessionTime=%u\n"
2844 "dot1xAuthSessionTerminateCause=999\n"
2845 "dot1xAuthSessionUserName=%s\n",
2846 (unsigned long long) sta->acct_session_id,
2847 (wpa_key_mgmt_wpa_ieee8021x(
2848 wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
2849 1 : 2,
2850 (unsigned int) diff.sec,
2851 sm->identity ? (char *) sm->identity :
2852 (identity_buf ? identity_buf : "N/A"));
2853 os_free(identity_buf);
2854 if (os_snprintf_error(buflen - len, ret))
2855 return len;
2856 len += ret;
2857
2858 if (sm->acct_multi_session_id) {
2859 ret = os_snprintf(buf + len, buflen - len,
2860 "authMultiSessionId=%016llX\n",
2861 (unsigned long long)
2862 sm->acct_multi_session_id);
2863 if (os_snprintf_error(buflen - len, ret))
2864 return len;
2865 len += ret;
2866 }
2867
2868 name1 = eap_server_get_name(0, sm->eap_type_authsrv);
2869 name2 = eap_server_get_name(0, sm->eap_type_supp);
2870 ret = os_snprintf(buf + len, buflen - len,
2871 "last_eap_type_as=%d (%s)\n"
2872 "last_eap_type_sta=%d (%s)\n",
2873 sm->eap_type_authsrv, name1,
2874 sm->eap_type_supp, name2);
2875 if (os_snprintf_error(buflen - len, ret))
2876 return len;
2877 len += ret;
2878
2879 return len;
2880 }
2881
2882
2883 #ifdef CONFIG_HS20
2884 static void ieee802_1x_wnm_notif_send(void *eloop_ctx, void *timeout_ctx)
2885 {
2886 struct hostapd_data *hapd = eloop_ctx;
2887 struct sta_info *sta = timeout_ctx;
2888
2889 if (sta->remediation) {
2890 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2891 MACSTR " to indicate Subscription Remediation",
2892 MAC2STR(sta->addr));
2893 hs20_send_wnm_notification(hapd, sta->addr,
2894 sta->remediation_method,
2895 sta->remediation_url);
2896 os_free(sta->remediation_url);
2897 sta->remediation_url = NULL;
2898 }
2899
2900 if (sta->hs20_deauth_req) {
2901 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2902 MACSTR " to indicate imminent deauthentication",
2903 MAC2STR(sta->addr));
2904 hs20_send_wnm_notification_deauth_req(hapd, sta->addr,
2905 sta->hs20_deauth_req);
2906 }
2907
2908 if (sta->hs20_t_c_filtering) {
2909 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2910 MACSTR " to indicate Terms and Conditions filtering",
2911 MAC2STR(sta->addr));
2912 hs20_send_wnm_notification_t_c(hapd, sta->addr, sta->t_c_url);
2913 os_free(sta->t_c_url);
2914 sta->t_c_url = NULL;
2915 }
2916 }
2917 #endif /* CONFIG_HS20 */
2918
2919
2920 static void ieee802_1x_finished(struct hostapd_data *hapd,
2921 struct sta_info *sta, int success,
2922 int remediation)
2923 {
2924 const u8 *key;
2925 size_t len;
2926 /* TODO: get PMKLifetime from WPA parameters */
2927 static const int dot11RSNAConfigPMKLifetime = 43200;
2928 unsigned int session_timeout;
2929 struct os_reltime now, remaining;
2930
2931 #ifdef CONFIG_HS20
2932 if (remediation && !sta->remediation) {
2933 sta->remediation = 1;
2934 os_free(sta->remediation_url);
2935 sta->remediation_url =
2936 os_strdup(hapd->conf->subscr_remediation_url);
2937 sta->remediation_method = 1; /* SOAP-XML SPP */
2938 }
2939
2940 if (success && (sta->remediation || sta->hs20_deauth_req ||
2941 sta->hs20_t_c_filtering)) {
2942 wpa_printf(MSG_DEBUG, "HS 2.0: Schedule WNM-Notification to "
2943 MACSTR " in 100 ms", MAC2STR(sta->addr));
2944 eloop_cancel_timeout(ieee802_1x_wnm_notif_send, hapd, sta);
2945 eloop_register_timeout(0, 100000, ieee802_1x_wnm_notif_send,
2946 hapd, sta);
2947 }
2948 #endif /* CONFIG_HS20 */
2949
2950 #ifdef CONFIG_MACSEC
2951 ieee802_1x_notify_create_actor_hapd(hapd, sta);
2952 #endif /* CONFIG_MACSEC */
2953
2954 key = ieee802_1x_get_key(sta->eapol_sm, &len);
2955 if (sta->session_timeout_set) {
2956 os_get_reltime(&now);
2957 os_reltime_sub(&sta->session_timeout, &now, &remaining);
2958 session_timeout = (remaining.sec > 0) ? remaining.sec : 1;
2959 } else {
2960 session_timeout = dot11RSNAConfigPMKLifetime;
2961 }
2962 if (success && key && len >= PMK_LEN && !sta->remediation &&
2963 !sta->hs20_deauth_requested &&
2964 wpa_auth_pmksa_add(sta->wpa_sm, key, len, session_timeout,
2965 sta->eapol_sm) == 0) {
2966 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
2967 HOSTAPD_LEVEL_DEBUG,
2968 "Added PMKSA cache entry (IEEE 802.1X)");
2969 }
2970
2971 if (!success) {
2972 /*
2973 * Many devices require deauthentication after WPS provisioning
2974 * and some may not be be able to do that themselves, so
2975 * disconnect the client here. In addition, this may also
2976 * benefit IEEE 802.1X/EAPOL authentication cases, too since
2977 * the EAPOL PAE state machine would remain in HELD state for
2978 * considerable amount of time and some EAP methods, like
2979 * EAP-FAST with anonymous provisioning, may require another
2980 * EAPOL authentication to be started to complete connection.
2981 */
2982 ap_sta_delayed_1x_auth_fail_disconnect(hapd, sta);
2983 }
2984 }
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