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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 KEY_FLAG_PAIRWISE_RX_TX)) {
290 wpa_printf(MSG_ERROR,
291 "Could not set individual WEP encryption");
292 }
293
294 os_free(ikey);
295 }
296 }
297
298 #endif /* CONFIG_NO_RC4 */
299 #endif /* CONFIG_FIPS */
300
301
302 const char *radius_mode_txt(struct hostapd_data *hapd)
303 {
304 switch (hapd->iface->conf->hw_mode) {
305 case HOSTAPD_MODE_IEEE80211AD:
306 return "802.11ad";
307 case HOSTAPD_MODE_IEEE80211A:
308 return "802.11a";
309 case HOSTAPD_MODE_IEEE80211G:
310 return "802.11g";
311 case HOSTAPD_MODE_IEEE80211B:
312 default:
313 return "802.11b";
314 }
315 }
316
317
318 int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta)
319 {
320 int i;
321 u8 rate = 0;
322
323 for (i = 0; i < sta->supported_rates_len; i++)
324 if ((sta->supported_rates[i] & 0x7f) > rate)
325 rate = sta->supported_rates[i] & 0x7f;
326
327 return rate;
328 }
329
330
331 #ifndef CONFIG_NO_RADIUS
332 static void ieee802_1x_learn_identity(struct hostapd_data *hapd,
333 struct eapol_state_machine *sm,
334 const u8 *eap, size_t len)
335 {
336 const u8 *identity;
337 size_t identity_len;
338 const struct eap_hdr *hdr = (const struct eap_hdr *) eap;
339
340 if (len <= sizeof(struct eap_hdr) ||
341 (hdr->code == EAP_CODE_RESPONSE &&
342 eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY) ||
343 (hdr->code == EAP_CODE_INITIATE &&
344 eap[sizeof(struct eap_hdr)] != EAP_ERP_TYPE_REAUTH) ||
345 (hdr->code != EAP_CODE_RESPONSE &&
346 hdr->code != EAP_CODE_INITIATE))
347 return;
348
349 eap_erp_update_identity(sm->eap, eap, len);
350 identity = eap_get_identity(sm->eap, &identity_len);
351 if (!identity)
352 return;
353
354 /* Save station identity for future RADIUS packets */
355 os_free(sm->identity);
356 sm->identity = (u8 *) dup_binstr(identity, identity_len);
357 if (!sm->identity) {
358 sm->identity_len = 0;
359 return;
360 }
361
362 sm->identity_len = identity_len;
363 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
364 HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity);
365 sm->dot1xAuthEapolRespIdFramesRx++;
366 }
367
368
369 static int add_common_radius_sta_attr_rsn(struct hostapd_data *hapd,
370 struct hostapd_radius_attr *req_attr,
371 struct sta_info *sta,
372 struct radius_msg *msg)
373 {
374 u32 suite;
375 int ver, val;
376
377 ver = wpa_auth_sta_wpa_version(sta->wpa_sm);
378 val = wpa_auth_get_pairwise(sta->wpa_sm);
379 suite = wpa_cipher_to_suite(ver, val);
380 if (val != -1 &&
381 !hostapd_config_get_radius_attr(req_attr,
382 RADIUS_ATTR_WLAN_PAIRWISE_CIPHER) &&
383 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_PAIRWISE_CIPHER,
384 suite)) {
385 wpa_printf(MSG_ERROR, "Could not add WLAN-Pairwise-Cipher");
386 return -1;
387 }
388
389 suite = wpa_cipher_to_suite(((hapd->conf->wpa & 0x2) ||
390 hapd->conf->osen) ?
391 WPA_PROTO_RSN : WPA_PROTO_WPA,
392 hapd->conf->wpa_group);
393 if (!hostapd_config_get_radius_attr(req_attr,
394 RADIUS_ATTR_WLAN_GROUP_CIPHER) &&
395 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_GROUP_CIPHER,
396 suite)) {
397 wpa_printf(MSG_ERROR, "Could not add WLAN-Group-Cipher");
398 return -1;
399 }
400
401 val = wpa_auth_sta_key_mgmt(sta->wpa_sm);
402 suite = wpa_akm_to_suite(val);
403 if (val != -1 &&
404 !hostapd_config_get_radius_attr(req_attr,
405 RADIUS_ATTR_WLAN_AKM_SUITE) &&
406 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_AKM_SUITE,
407 suite)) {
408 wpa_printf(MSG_ERROR, "Could not add WLAN-AKM-Suite");
409 return -1;
410 }
411
412 if (hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
413 suite = wpa_cipher_to_suite(WPA_PROTO_RSN,
414 hapd->conf->group_mgmt_cipher);
415 if (!hostapd_config_get_radius_attr(
416 req_attr, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER) &&
417 !radius_msg_add_attr_int32(
418 msg, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER, suite)) {
419 wpa_printf(MSG_ERROR,
420 "Could not add WLAN-Group-Mgmt-Cipher");
421 return -1;
422 }
423 }
424
425 return 0;
426 }
427
428
429 static int add_common_radius_sta_attr(struct hostapd_data *hapd,
430 struct hostapd_radius_attr *req_attr,
431 struct sta_info *sta,
432 struct radius_msg *msg)
433 {
434 char buf[128];
435
436 if (!hostapd_config_get_radius_attr(req_attr,
437 RADIUS_ATTR_SERVICE_TYPE) &&
438 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_SERVICE_TYPE,
439 RADIUS_SERVICE_TYPE_FRAMED)) {
440 wpa_printf(MSG_ERROR, "Could not add Service-Type");
441 return -1;
442 }
443
444 if (!hostapd_config_get_radius_attr(req_attr,
445 RADIUS_ATTR_NAS_PORT) &&
446 sta->aid > 0 &&
447 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
448 wpa_printf(MSG_ERROR, "Could not add NAS-Port");
449 return -1;
450 }
451
452 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
453 MAC2STR(sta->addr));
454 buf[sizeof(buf) - 1] = '\0';
455 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
456 (u8 *) buf, os_strlen(buf))) {
457 wpa_printf(MSG_ERROR, "Could not add Calling-Station-Id");
458 return -1;
459 }
460
461 if (sta->flags & WLAN_STA_PREAUTH) {
462 os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
463 sizeof(buf));
464 } else {
465 os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
466 radius_sta_rate(hapd, sta) / 2,
467 (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
468 radius_mode_txt(hapd));
469 buf[sizeof(buf) - 1] = '\0';
470 }
471 if (!hostapd_config_get_radius_attr(req_attr,
472 RADIUS_ATTR_CONNECT_INFO) &&
473 !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
474 (u8 *) buf, os_strlen(buf))) {
475 wpa_printf(MSG_ERROR, "Could not add Connect-Info");
476 return -1;
477 }
478
479 if (sta->acct_session_id) {
480 os_snprintf(buf, sizeof(buf), "%016llX",
481 (unsigned long long) sta->acct_session_id);
482 if (!radius_msg_add_attr(msg, RADIUS_ATTR_ACCT_SESSION_ID,
483 (u8 *) buf, os_strlen(buf))) {
484 wpa_printf(MSG_ERROR, "Could not add Acct-Session-Id");
485 return -1;
486 }
487 }
488
489 if ((hapd->conf->wpa & 2) &&
490 !hapd->conf->disable_pmksa_caching &&
491 sta->eapol_sm && sta->eapol_sm->acct_multi_session_id) {
492 os_snprintf(buf, sizeof(buf), "%016llX",
493 (unsigned long long)
494 sta->eapol_sm->acct_multi_session_id);
495 if (!radius_msg_add_attr(
496 msg, RADIUS_ATTR_ACCT_MULTI_SESSION_ID,
497 (u8 *) buf, os_strlen(buf))) {
498 wpa_printf(MSG_INFO,
499 "Could not add Acct-Multi-Session-Id");
500 return -1;
501 }
502 }
503
504 #ifdef CONFIG_IEEE80211R_AP
505 if (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) &&
506 sta->wpa_sm &&
507 (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm)) ||
508 sta->auth_alg == WLAN_AUTH_FT) &&
509 !hostapd_config_get_radius_attr(req_attr,
510 RADIUS_ATTR_MOBILITY_DOMAIN_ID) &&
511 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_MOBILITY_DOMAIN_ID,
512 WPA_GET_BE16(
513 hapd->conf->mobility_domain))) {
514 wpa_printf(MSG_ERROR, "Could not add Mobility-Domain-Id");
515 return -1;
516 }
517 #endif /* CONFIG_IEEE80211R_AP */
518
519 if ((hapd->conf->wpa || hapd->conf->osen) && sta->wpa_sm &&
520 add_common_radius_sta_attr_rsn(hapd, req_attr, sta, msg) < 0)
521 return -1;
522
523 return 0;
524 }
525
526
527 int add_common_radius_attr(struct hostapd_data *hapd,
528 struct hostapd_radius_attr *req_attr,
529 struct sta_info *sta,
530 struct radius_msg *msg)
531 {
532 char buf[128];
533 struct hostapd_radius_attr *attr;
534 int len;
535
536 if (!hostapd_config_get_radius_attr(req_attr,
537 RADIUS_ATTR_NAS_IP_ADDRESS) &&
538 hapd->conf->own_ip_addr.af == AF_INET &&
539 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
540 (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
541 wpa_printf(MSG_ERROR, "Could not add NAS-IP-Address");
542 return -1;
543 }
544
545 #ifdef CONFIG_IPV6
546 if (!hostapd_config_get_radius_attr(req_attr,
547 RADIUS_ATTR_NAS_IPV6_ADDRESS) &&
548 hapd->conf->own_ip_addr.af == AF_INET6 &&
549 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
550 (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
551 wpa_printf(MSG_ERROR, "Could not add NAS-IPv6-Address");
552 return -1;
553 }
554 #endif /* CONFIG_IPV6 */
555
556 if (!hostapd_config_get_radius_attr(req_attr,
557 RADIUS_ATTR_NAS_IDENTIFIER) &&
558 hapd->conf->nas_identifier &&
559 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
560 (u8 *) hapd->conf->nas_identifier,
561 os_strlen(hapd->conf->nas_identifier))) {
562 wpa_printf(MSG_ERROR, "Could not add NAS-Identifier");
563 return -1;
564 }
565
566 len = os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":",
567 MAC2STR(hapd->own_addr));
568 os_memcpy(&buf[len], hapd->conf->ssid.ssid,
569 hapd->conf->ssid.ssid_len);
570 len += hapd->conf->ssid.ssid_len;
571 if (!hostapd_config_get_radius_attr(req_attr,
572 RADIUS_ATTR_CALLED_STATION_ID) &&
573 !radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
574 (u8 *) buf, len)) {
575 wpa_printf(MSG_ERROR, "Could not add Called-Station-Id");
576 return -1;
577 }
578
579 if (!hostapd_config_get_radius_attr(req_attr,
580 RADIUS_ATTR_NAS_PORT_TYPE) &&
581 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
582 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
583 wpa_printf(MSG_ERROR, "Could not add NAS-Port-Type");
584 return -1;
585 }
586
587 #ifdef CONFIG_INTERWORKING
588 if (hapd->conf->interworking &&
589 !is_zero_ether_addr(hapd->conf->hessid)) {
590 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
591 MAC2STR(hapd->conf->hessid));
592 buf[sizeof(buf) - 1] = '\0';
593 if (!hostapd_config_get_radius_attr(req_attr,
594 RADIUS_ATTR_WLAN_HESSID) &&
595 !radius_msg_add_attr(msg, RADIUS_ATTR_WLAN_HESSID,
596 (u8 *) buf, os_strlen(buf))) {
597 wpa_printf(MSG_ERROR, "Could not add WLAN-HESSID");
598 return -1;
599 }
600 }
601 #endif /* CONFIG_INTERWORKING */
602
603 if (sta && add_common_radius_sta_attr(hapd, req_attr, sta, msg) < 0)
604 return -1;
605
606 for (attr = req_attr; attr; attr = attr->next) {
607 if (!radius_msg_add_attr(msg, attr->type,
608 wpabuf_head(attr->val),
609 wpabuf_len(attr->val))) {
610 wpa_printf(MSG_ERROR, "Could not add RADIUS attribute");
611 return -1;
612 }
613 }
614
615 return 0;
616 }
617
618
619 int add_sqlite_radius_attr(struct hostapd_data *hapd, struct sta_info *sta,
620 struct radius_msg *msg, int acct)
621 {
622 #ifdef CONFIG_SQLITE
623 const char *attrtxt;
624 char addrtxt[3 * ETH_ALEN];
625 char *sql;
626 sqlite3_stmt *stmt = NULL;
627
628 if (!hapd->rad_attr_db)
629 return 0;
630
631 os_snprintf(addrtxt, sizeof(addrtxt), MACSTR, MAC2STR(sta->addr));
632
633 sql = "SELECT attr FROM radius_attributes WHERE sta=? AND (reqtype=? OR reqtype IS NULL);";
634 if (sqlite3_prepare_v2(hapd->rad_attr_db, sql, os_strlen(sql), &stmt,
635 NULL) != SQLITE_OK) {
636 wpa_printf(MSG_ERROR, "DB: Failed to prepare SQL statement: %s",
637 sqlite3_errmsg(hapd->rad_attr_db));
638 return -1;
639 }
640 sqlite3_bind_text(stmt, 1, addrtxt, os_strlen(addrtxt), SQLITE_STATIC);
641 sqlite3_bind_text(stmt, 2, acct ? "acct" : "auth", 4, SQLITE_STATIC);
642 while (sqlite3_step(stmt) == SQLITE_ROW) {
643 struct hostapd_radius_attr *attr;
644 struct radius_attr_hdr *hdr;
645
646 attrtxt = (const char *) sqlite3_column_text(stmt, 0);
647 attr = hostapd_parse_radius_attr(attrtxt);
648 if (!attr) {
649 wpa_printf(MSG_ERROR,
650 "Skipping invalid attribute from SQL: %s",
651 attrtxt);
652 continue;
653 }
654 wpa_printf(MSG_DEBUG, "Adding RADIUS attribute from SQL: %s",
655 attrtxt);
656 hdr = radius_msg_add_attr(msg, attr->type,
657 wpabuf_head(attr->val),
658 wpabuf_len(attr->val));
659 hostapd_config_free_radius_attr(attr);
660 if (!hdr) {
661 wpa_printf(MSG_ERROR,
662 "Could not add RADIUS attribute from SQL");
663 continue;
664 }
665 }
666
667 sqlite3_reset(stmt);
668 sqlite3_clear_bindings(stmt);
669 sqlite3_finalize(stmt);
670 #endif /* CONFIG_SQLITE */
671
672 return 0;
673 }
674
675
676 void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
677 struct sta_info *sta,
678 const u8 *eap, size_t len)
679 {
680 struct radius_msg *msg;
681 struct eapol_state_machine *sm = sta->eapol_sm;
682
683 if (!sm)
684 return;
685
686 ieee802_1x_learn_identity(hapd, sm, eap, len);
687
688 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS packet");
689
690 sm->radius_identifier = radius_client_get_id(hapd->radius);
691 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
692 sm->radius_identifier);
693 if (!msg) {
694 wpa_printf(MSG_INFO, "Could not create new RADIUS packet");
695 return;
696 }
697
698 if (radius_msg_make_authenticator(msg) < 0) {
699 wpa_printf(MSG_INFO, "Could not make Request Authenticator");
700 goto fail;
701 }
702
703 if (sm->identity &&
704 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
705 sm->identity, sm->identity_len)) {
706 wpa_printf(MSG_INFO, "Could not add User-Name");
707 goto fail;
708 }
709
710 if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr, sta,
711 msg) < 0)
712 goto fail;
713
714 if (sta && add_sqlite_radius_attr(hapd, sta, msg, 0) < 0)
715 goto fail;
716
717 /* TODO: should probably check MTU from driver config; 2304 is max for
718 * IEEE 802.11, but use 1400 to avoid problems with too large packets
719 */
720 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
721 RADIUS_ATTR_FRAMED_MTU) &&
722 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
723 wpa_printf(MSG_INFO, "Could not add Framed-MTU");
724 goto fail;
725 }
726
727 if (!radius_msg_add_eap(msg, eap, len)) {
728 wpa_printf(MSG_INFO, "Could not add EAP-Message");
729 goto fail;
730 }
731
732 /* State attribute must be copied if and only if this packet is
733 * Access-Request reply to the previous Access-Challenge */
734 if (sm->last_recv_radius &&
735 radius_msg_get_hdr(sm->last_recv_radius)->code ==
736 RADIUS_CODE_ACCESS_CHALLENGE) {
737 int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
738 RADIUS_ATTR_STATE);
739 if (res < 0) {
740 wpa_printf(MSG_INFO,
741 "Could not copy State attribute from previous Access-Challenge");
742 goto fail;
743 }
744 if (res > 0)
745 wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
746 }
747
748 if (hapd->conf->radius_request_cui) {
749 const u8 *cui;
750 size_t cui_len;
751 /* Add previously learned CUI or nul CUI to request CUI */
752 if (sm->radius_cui) {
753 cui = wpabuf_head(sm->radius_cui);
754 cui_len = wpabuf_len(sm->radius_cui);
755 } else {
756 cui = (const u8 *) "\0";
757 cui_len = 1;
758 }
759 if (!radius_msg_add_attr(msg,
760 RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
761 cui, cui_len)) {
762 wpa_printf(MSG_ERROR, "Could not add CUI");
763 goto fail;
764 }
765 }
766
767 #ifdef CONFIG_HS20
768 if (hapd->conf->hs20) {
769 u8 ver = hapd->conf->hs20_release - 1;
770
771 if (!radius_msg_add_wfa(
772 msg, RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION,
773 &ver, 1)) {
774 wpa_printf(MSG_ERROR,
775 "Could not add HS 2.0 AP version");
776 goto fail;
777 }
778
779 if (sta->hs20_ie && wpabuf_len(sta->hs20_ie) > 0) {
780 const u8 *pos;
781 u8 buf[3];
782 u16 id;
783
784 pos = wpabuf_head_u8(sta->hs20_ie);
785 buf[0] = (*pos) >> 4;
786 if (((*pos) & HS20_PPS_MO_ID_PRESENT) &&
787 wpabuf_len(sta->hs20_ie) >= 3)
788 id = WPA_GET_LE16(pos + 1);
789 else
790 id = 0;
791 WPA_PUT_BE16(buf + 1, id);
792 if (!radius_msg_add_wfa(
793 msg,
794 RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION,
795 buf, sizeof(buf))) {
796 wpa_printf(MSG_ERROR,
797 "Could not add HS 2.0 STA version");
798 goto fail;
799 }
800 }
801
802 if (sta->roaming_consortium &&
803 !radius_msg_add_wfa(
804 msg, RADIUS_VENDOR_ATTR_WFA_HS20_ROAMING_CONSORTIUM,
805 wpabuf_head(sta->roaming_consortium),
806 wpabuf_len(sta->roaming_consortium))) {
807 wpa_printf(MSG_ERROR,
808 "Could not add HS 2.0 Roaming Consortium");
809 goto fail;
810 }
811
812 if (hapd->conf->t_c_filename) {
813 be32 timestamp;
814
815 if (!radius_msg_add_wfa(
816 msg,
817 RADIUS_VENDOR_ATTR_WFA_HS20_T_C_FILENAME,
818 (const u8 *) hapd->conf->t_c_filename,
819 os_strlen(hapd->conf->t_c_filename))) {
820 wpa_printf(MSG_ERROR,
821 "Could not add HS 2.0 T&C Filename");
822 goto fail;
823 }
824
825 timestamp = host_to_be32(hapd->conf->t_c_timestamp);
826 if (!radius_msg_add_wfa(
827 msg,
828 RADIUS_VENDOR_ATTR_WFA_HS20_TIMESTAMP,
829 (const u8 *) &timestamp,
830 sizeof(timestamp))) {
831 wpa_printf(MSG_ERROR,
832 "Could not add HS 2.0 Timestamp");
833 goto fail;
834 }
835 }
836 }
837 #endif /* CONFIG_HS20 */
838
839 if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0)
840 goto fail;
841
842 return;
843
844 fail:
845 radius_msg_free(msg);
846 }
847 #endif /* CONFIG_NO_RADIUS */
848
849
850 static void handle_eap_response(struct hostapd_data *hapd,
851 struct sta_info *sta, struct eap_hdr *eap,
852 size_t len)
853 {
854 u8 type, *data;
855 struct eapol_state_machine *sm = sta->eapol_sm;
856
857 if (!sm)
858 return;
859
860 data = (u8 *) (eap + 1);
861
862 if (len < sizeof(*eap) + 1) {
863 wpa_printf(MSG_INFO, "%s: too short response data", __func__);
864 return;
865 }
866
867 sm->eap_type_supp = type = data[0];
868
869 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
870 HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
871 "id=%d len=%d) from STA: EAP Response-%s (%d)",
872 eap->code, eap->identifier, be_to_host16(eap->length),
873 eap_server_get_name(0, type), type);
874
875 sm->dot1xAuthEapolRespFramesRx++;
876
877 wpabuf_free(sm->eap_if->eapRespData);
878 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
879 sm->eapolEap = TRUE;
880 }
881
882
883 static void handle_eap_initiate(struct hostapd_data *hapd,
884 struct sta_info *sta, struct eap_hdr *eap,
885 size_t len)
886 {
887 #ifdef CONFIG_ERP
888 u8 type, *data;
889 struct eapol_state_machine *sm = sta->eapol_sm;
890
891 if (!sm)
892 return;
893
894 if (len < sizeof(*eap) + 1) {
895 wpa_printf(MSG_INFO, "%s: too short response data", __func__);
896 return;
897 }
898
899 data = (u8 *) (eap + 1);
900 type = data[0];
901
902 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
903 HOSTAPD_LEVEL_DEBUG,
904 "received EAP packet (code=%d id=%d len=%d) from STA: EAP Initiate type %u",
905 eap->code, eap->identifier, be_to_host16(eap->length),
906 type);
907
908 wpabuf_free(sm->eap_if->eapRespData);
909 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
910 sm->eapolEap = TRUE;
911 #endif /* CONFIG_ERP */
912 }
913
914
915 #ifndef CONFIG_NO_STDOUT_DEBUG
916 static const char * eap_code_str(u8 code)
917 {
918 switch (code) {
919 case EAP_CODE_REQUEST:
920 return "request";
921 case EAP_CODE_RESPONSE:
922 return "response";
923 case EAP_CODE_SUCCESS:
924 return "success";
925 case EAP_CODE_FAILURE:
926 return "failure";
927 case EAP_CODE_INITIATE:
928 return "initiate";
929 case EAP_CODE_FINISH:
930 return "finish";
931 default:
932 return "unknown";
933 }
934 }
935 #endif /* CONFIG_NO_STDOUT_DEBUG */
936
937
938 /* Process incoming EAP packet from Supplicant */
939 static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
940 u8 *buf, size_t len)
941 {
942 struct eap_hdr *eap;
943 u16 eap_len;
944
945 if (len < sizeof(*eap)) {
946 wpa_printf(MSG_INFO, " too short EAP packet");
947 return;
948 }
949
950 eap = (struct eap_hdr *) buf;
951
952 eap_len = be_to_host16(eap->length);
953 wpa_printf(MSG_DEBUG, "EAP: code=%d (%s) identifier=%d length=%d",
954 eap->code, eap_code_str(eap->code), eap->identifier,
955 eap_len);
956 if (eap_len < sizeof(*eap)) {
957 wpa_printf(MSG_DEBUG, " Invalid EAP length");
958 return;
959 } else if (eap_len > len) {
960 wpa_printf(MSG_DEBUG,
961 " Too short frame to contain this EAP packet");
962 return;
963 } else if (eap_len < len) {
964 wpa_printf(MSG_DEBUG,
965 " Ignoring %lu extra bytes after EAP packet",
966 (unsigned long) len - eap_len);
967 }
968
969 switch (eap->code) {
970 case EAP_CODE_RESPONSE:
971 handle_eap_response(hapd, sta, eap, eap_len);
972 break;
973 case EAP_CODE_INITIATE:
974 handle_eap_initiate(hapd, sta, eap, eap_len);
975 break;
976 }
977 }
978
979
980 struct eapol_state_machine *
981 ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
982 {
983 int flags = 0;
984
985 if (sta->flags & WLAN_STA_PREAUTH)
986 flags |= EAPOL_SM_PREAUTH;
987 if (sta->wpa_sm) {
988 flags |= EAPOL_SM_USES_WPA;
989 if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
990 flags |= EAPOL_SM_FROM_PMKSA_CACHE;
991 }
992 return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
993 sta->wps_ie, sta->p2p_ie, sta,
994 sta->identity, sta->radius_cui);
995 }
996
997
998 static void ieee802_1x_save_eapol(struct sta_info *sta, const u8 *buf,
999 size_t len)
1000 {
1001 if (sta->pending_eapol_rx) {
1002 wpabuf_free(sta->pending_eapol_rx->buf);
1003 } else {
1004 sta->pending_eapol_rx =
1005 os_malloc(sizeof(*sta->pending_eapol_rx));
1006 if (!sta->pending_eapol_rx)
1007 return;
1008 }
1009
1010 sta->pending_eapol_rx->buf = wpabuf_alloc_copy(buf, len);
1011 if (!sta->pending_eapol_rx->buf) {
1012 os_free(sta->pending_eapol_rx);
1013 sta->pending_eapol_rx = NULL;
1014 return;
1015 }
1016
1017 os_get_reltime(&sta->pending_eapol_rx->rx_time);
1018 }
1019
1020
1021 /**
1022 * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
1023 * @hapd: hostapd BSS data
1024 * @sa: Source address (sender of the EAPOL frame)
1025 * @buf: EAPOL frame
1026 * @len: Length of buf in octets
1027 *
1028 * This function is called for each incoming EAPOL frame from the interface
1029 */
1030 void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
1031 size_t len)
1032 {
1033 struct sta_info *sta;
1034 struct ieee802_1x_hdr *hdr;
1035 struct ieee802_1x_eapol_key *key;
1036 u16 datalen;
1037 struct rsn_pmksa_cache_entry *pmksa;
1038 int key_mgmt;
1039
1040 if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen &&
1041 !hapd->conf->wps_state)
1042 return;
1043
1044 wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
1045 (unsigned long) len, MAC2STR(sa));
1046 sta = ap_get_sta(hapd, sa);
1047 if (!sta || (!(sta->flags & (WLAN_STA_ASSOC | WLAN_STA_PREAUTH)) &&
1048 !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
1049 wpa_printf(MSG_DEBUG,
1050 "IEEE 802.1X data frame from not associated/Pre-authenticating STA");
1051
1052 if (sta && (sta->flags & WLAN_STA_AUTH)) {
1053 wpa_printf(MSG_DEBUG, "Saving EAPOL frame from " MACSTR
1054 " for later use", MAC2STR(sta->addr));
1055 ieee802_1x_save_eapol(sta, buf, len);
1056 }
1057
1058 return;
1059 }
1060
1061 if (len < sizeof(*hdr)) {
1062 wpa_printf(MSG_INFO, " too short IEEE 802.1X packet");
1063 return;
1064 }
1065
1066 hdr = (struct ieee802_1x_hdr *) buf;
1067 datalen = be_to_host16(hdr->length);
1068 wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
1069 hdr->version, hdr->type, datalen);
1070
1071 if (len - sizeof(*hdr) < datalen) {
1072 wpa_printf(MSG_INFO,
1073 " frame too short for this IEEE 802.1X packet");
1074 if (sta->eapol_sm)
1075 sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
1076 return;
1077 }
1078 if (len - sizeof(*hdr) > datalen) {
1079 wpa_printf(MSG_DEBUG,
1080 " ignoring %lu extra octets after IEEE 802.1X packet",
1081 (unsigned long) len - sizeof(*hdr) - datalen);
1082 }
1083
1084 if (sta->eapol_sm) {
1085 sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
1086 sta->eapol_sm->dot1xAuthEapolFramesRx++;
1087 }
1088
1089 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
1090 if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
1091 hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
1092 (key->type == EAPOL_KEY_TYPE_WPA ||
1093 key->type == EAPOL_KEY_TYPE_RSN)) {
1094 wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
1095 sizeof(*hdr) + datalen);
1096 return;
1097 }
1098
1099 if (!hapd->conf->ieee802_1x && !hapd->conf->osen &&
1100 !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
1101 wpa_printf(MSG_DEBUG,
1102 "IEEE 802.1X: Ignore EAPOL message - 802.1X not enabled and WPS not used");
1103 return;
1104 }
1105
1106 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
1107 if (key_mgmt != -1 &&
1108 (wpa_key_mgmt_wpa_psk(key_mgmt) || key_mgmt == WPA_KEY_MGMT_OWE ||
1109 key_mgmt == WPA_KEY_MGMT_DPP)) {
1110 wpa_printf(MSG_DEBUG,
1111 "IEEE 802.1X: Ignore EAPOL message - STA is using PSK");
1112 return;
1113 }
1114
1115 if (!sta->eapol_sm) {
1116 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
1117 if (!sta->eapol_sm)
1118 return;
1119
1120 #ifdef CONFIG_WPS
1121 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state) {
1122 u32 wflags = sta->flags & (WLAN_STA_WPS |
1123 WLAN_STA_WPS2 |
1124 WLAN_STA_MAYBE_WPS);
1125 if (wflags == WLAN_STA_MAYBE_WPS ||
1126 wflags == (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) {
1127 /*
1128 * Delay EAPOL frame transmission until a
1129 * possible WPS STA initiates the handshake
1130 * with EAPOL-Start. Only allow the wait to be
1131 * skipped if the STA is known to support WPS
1132 * 2.0.
1133 */
1134 wpa_printf(MSG_DEBUG,
1135 "WPS: Do not start EAPOL until EAPOL-Start is received");
1136 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1137 }
1138 }
1139 #endif /* CONFIG_WPS */
1140
1141 sta->eapol_sm->eap_if->portEnabled = TRUE;
1142 }
1143
1144 /* since we support version 1, we can ignore version field and proceed
1145 * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
1146 /* TODO: actually, we are not version 1 anymore.. However, Version 2
1147 * does not change frame contents, so should be ok to process frames
1148 * more or less identically. Some changes might be needed for
1149 * verification of fields. */
1150
1151 switch (hdr->type) {
1152 case IEEE802_1X_TYPE_EAP_PACKET:
1153 handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
1154 break;
1155
1156 case IEEE802_1X_TYPE_EAPOL_START:
1157 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1158 HOSTAPD_LEVEL_DEBUG,
1159 "received EAPOL-Start from STA");
1160 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
1161 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1162 if (pmksa) {
1163 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
1164 HOSTAPD_LEVEL_DEBUG,
1165 "cached PMKSA available - ignore it since STA sent EAPOL-Start");
1166 wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
1167 }
1168 sta->eapol_sm->eapolStart = TRUE;
1169 sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
1170 eap_server_clear_identity(sta->eapol_sm->eap);
1171 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
1172 break;
1173
1174 case IEEE802_1X_TYPE_EAPOL_LOGOFF:
1175 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1176 HOSTAPD_LEVEL_DEBUG,
1177 "received EAPOL-Logoff from STA");
1178 sta->acct_terminate_cause =
1179 RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
1180 accounting_sta_stop(hapd, sta);
1181 sta->eapol_sm->eapolLogoff = TRUE;
1182 sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
1183 eap_server_clear_identity(sta->eapol_sm->eap);
1184 break;
1185
1186 case IEEE802_1X_TYPE_EAPOL_KEY:
1187 wpa_printf(MSG_DEBUG, " EAPOL-Key");
1188 if (!ap_sta_is_authorized(sta)) {
1189 wpa_printf(MSG_DEBUG,
1190 " Dropped key data from unauthorized Supplicant");
1191 break;
1192 }
1193 break;
1194
1195 case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
1196 wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
1197 /* TODO: implement support for this; show data */
1198 break;
1199
1200 #ifdef CONFIG_MACSEC
1201 case IEEE802_1X_TYPE_EAPOL_MKA:
1202 wpa_printf(MSG_EXCESSIVE,
1203 "EAPOL type %d will be handled by MKA", hdr->type);
1204 break;
1205 #endif /* CONFIG_MACSEC */
1206
1207 default:
1208 wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
1209 sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
1210 break;
1211 }
1212
1213 eapol_auth_step(sta->eapol_sm);
1214 }
1215
1216
1217 /**
1218 * ieee802_1x_new_station - Start IEEE 802.1X authentication
1219 * @hapd: hostapd BSS data
1220 * @sta: The station
1221 *
1222 * This function is called to start IEEE 802.1X authentication when a new
1223 * station completes IEEE 802.11 association.
1224 */
1225 void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
1226 {
1227 struct rsn_pmksa_cache_entry *pmksa;
1228 int reassoc = 1;
1229 int force_1x = 0;
1230 int key_mgmt;
1231
1232 #ifdef CONFIG_WPS
1233 if (hapd->conf->wps_state &&
1234 ((hapd->conf->wpa && (sta->flags & WLAN_STA_MAYBE_WPS)) ||
1235 (sta->flags & WLAN_STA_WPS))) {
1236 /*
1237 * Need to enable IEEE 802.1X/EAPOL state machines for possible
1238 * WPS handshake even if IEEE 802.1X/EAPOL is not used for
1239 * authentication in this BSS.
1240 */
1241 force_1x = 1;
1242 }
1243 #endif /* CONFIG_WPS */
1244
1245 if (!force_1x && !hapd->conf->ieee802_1x && !hapd->conf->osen) {
1246 wpa_printf(MSG_DEBUG,
1247 "IEEE 802.1X: Ignore STA - 802.1X not enabled or forced for WPS");
1248 /*
1249 * Clear any possible EAPOL authenticator state to support
1250 * reassociation change from WPS to PSK.
1251 */
1252 ieee802_1x_free_station(hapd, sta);
1253 return;
1254 }
1255
1256 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
1257 if (key_mgmt != -1 &&
1258 (wpa_key_mgmt_wpa_psk(key_mgmt) || key_mgmt == WPA_KEY_MGMT_OWE ||
1259 key_mgmt == WPA_KEY_MGMT_DPP)) {
1260 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - using PSK");
1261 /*
1262 * Clear any possible EAPOL authenticator state to support
1263 * reassociation change from WPA-EAP to PSK.
1264 */
1265 ieee802_1x_free_station(hapd, sta);
1266 return;
1267 }
1268
1269 if (!sta->eapol_sm) {
1270 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1271 HOSTAPD_LEVEL_DEBUG, "start authentication");
1272 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
1273 if (!sta->eapol_sm) {
1274 hostapd_logger(hapd, sta->addr,
1275 HOSTAPD_MODULE_IEEE8021X,
1276 HOSTAPD_LEVEL_INFO,
1277 "failed to allocate state machine");
1278 return;
1279 }
1280 reassoc = 0;
1281 }
1282
1283 #ifdef CONFIG_WPS
1284 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
1285 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state &&
1286 !(sta->flags & WLAN_STA_WPS2)) {
1287 /*
1288 * Delay EAPOL frame transmission until a possible WPS STA
1289 * initiates the handshake with EAPOL-Start. Only allow the
1290 * wait to be skipped if the STA is known to support WPS 2.0.
1291 */
1292 wpa_printf(MSG_DEBUG,
1293 "WPS: Do not start EAPOL until EAPOL-Start is received");
1294 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1295 }
1296 #endif /* CONFIG_WPS */
1297
1298 sta->eapol_sm->eap_if->portEnabled = TRUE;
1299
1300 #ifdef CONFIG_IEEE80211R_AP
1301 if (sta->auth_alg == WLAN_AUTH_FT) {
1302 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1303 HOSTAPD_LEVEL_DEBUG,
1304 "PMK from FT - skip IEEE 802.1X/EAP");
1305 /* Setup EAPOL state machines to already authenticated state
1306 * because of existing FT information from R0KH. */
1307 sta->eapol_sm->keyRun = TRUE;
1308 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1309 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1310 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1311 sta->eapol_sm->authSuccess = TRUE;
1312 sta->eapol_sm->authFail = FALSE;
1313 sta->eapol_sm->portValid = TRUE;
1314 if (sta->eapol_sm->eap)
1315 eap_sm_notify_cached(sta->eapol_sm->eap);
1316 ap_sta_bind_vlan(hapd, sta);
1317 return;
1318 }
1319 #endif /* CONFIG_IEEE80211R_AP */
1320
1321 #ifdef CONFIG_FILS
1322 if (sta->auth_alg == WLAN_AUTH_FILS_SK ||
1323 sta->auth_alg == WLAN_AUTH_FILS_SK_PFS ||
1324 sta->auth_alg == WLAN_AUTH_FILS_PK) {
1325 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1326 HOSTAPD_LEVEL_DEBUG,
1327 "PMK from FILS - skip IEEE 802.1X/EAP");
1328 /* Setup EAPOL state machines to already authenticated state
1329 * because of existing FILS information. */
1330 sta->eapol_sm->keyRun = TRUE;
1331 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1332 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1333 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1334 sta->eapol_sm->authSuccess = TRUE;
1335 sta->eapol_sm->authFail = FALSE;
1336 sta->eapol_sm->portValid = TRUE;
1337 if (sta->eapol_sm->eap)
1338 eap_sm_notify_cached(sta->eapol_sm->eap);
1339 wpa_auth_set_ptk_rekey_timer(sta->wpa_sm);
1340 return;
1341 }
1342 #endif /* CONFIG_FILS */
1343
1344 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1345 if (pmksa) {
1346 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1347 HOSTAPD_LEVEL_DEBUG,
1348 "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
1349 /* Setup EAPOL state machines to already authenticated state
1350 * because of existing PMKSA information in the cache. */
1351 sta->eapol_sm->keyRun = TRUE;
1352 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1353 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1354 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1355 sta->eapol_sm->authSuccess = TRUE;
1356 sta->eapol_sm->authFail = FALSE;
1357 if (sta->eapol_sm->eap)
1358 eap_sm_notify_cached(sta->eapol_sm->eap);
1359 pmksa_cache_to_eapol_data(hapd, pmksa, sta->eapol_sm);
1360 ap_sta_bind_vlan(hapd, sta);
1361 } else {
1362 if (reassoc) {
1363 /*
1364 * Force EAPOL state machines to start
1365 * re-authentication without having to wait for the
1366 * Supplicant to send EAPOL-Start.
1367 */
1368 sta->eapol_sm->reAuthenticate = TRUE;
1369 }
1370 eapol_auth_step(sta->eapol_sm);
1371 }
1372 }
1373
1374
1375 void ieee802_1x_free_station(struct hostapd_data *hapd, struct sta_info *sta)
1376 {
1377 struct eapol_state_machine *sm = sta->eapol_sm;
1378
1379 #ifdef CONFIG_HS20
1380 eloop_cancel_timeout(ieee802_1x_wnm_notif_send, hapd, sta);
1381 #endif /* CONFIG_HS20 */
1382
1383 if (sta->pending_eapol_rx) {
1384 wpabuf_free(sta->pending_eapol_rx->buf);
1385 os_free(sta->pending_eapol_rx);
1386 sta->pending_eapol_rx = NULL;
1387 }
1388
1389 if (!sm)
1390 return;
1391
1392 sta->eapol_sm = NULL;
1393
1394 #ifndef CONFIG_NO_RADIUS
1395 radius_msg_free(sm->last_recv_radius);
1396 radius_free_class(&sm->radius_class);
1397 #endif /* CONFIG_NO_RADIUS */
1398
1399 eapol_auth_free(sm);
1400 }
1401
1402
1403 #ifndef CONFIG_NO_RADIUS
1404 static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
1405 struct sta_info *sta)
1406 {
1407 struct wpabuf *eap;
1408 const struct eap_hdr *hdr;
1409 int eap_type = -1;
1410 char buf[64];
1411 struct radius_msg *msg;
1412 struct eapol_state_machine *sm = sta->eapol_sm;
1413
1414 if (!sm || !sm->last_recv_radius) {
1415 if (sm)
1416 sm->eap_if->aaaEapNoReq = TRUE;
1417 return;
1418 }
1419
1420 msg = sm->last_recv_radius;
1421
1422 eap = radius_msg_get_eap(msg);
1423 if (!eap) {
1424 /* RFC 3579, Chap. 2.6.3:
1425 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
1426 * attribute */
1427 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1428 HOSTAPD_LEVEL_WARNING,
1429 "could not extract EAP-Message from RADIUS message");
1430 sm->eap_if->aaaEapNoReq = TRUE;
1431 return;
1432 }
1433
1434 if (wpabuf_len(eap) < sizeof(*hdr)) {
1435 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1436 HOSTAPD_LEVEL_WARNING,
1437 "too short EAP packet received from authentication server");
1438 wpabuf_free(eap);
1439 sm->eap_if->aaaEapNoReq = TRUE;
1440 return;
1441 }
1442
1443 if (wpabuf_len(eap) > sizeof(*hdr))
1444 eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)];
1445
1446 hdr = wpabuf_head(eap);
1447 switch (hdr->code) {
1448 case EAP_CODE_REQUEST:
1449 if (eap_type >= 0)
1450 sm->eap_type_authsrv = eap_type;
1451 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
1452 eap_server_get_name(0, eap_type), eap_type);
1453 break;
1454 case EAP_CODE_RESPONSE:
1455 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
1456 eap_server_get_name(0, eap_type), eap_type);
1457 break;
1458 case EAP_CODE_SUCCESS:
1459 os_strlcpy(buf, "EAP Success", sizeof(buf));
1460 break;
1461 case EAP_CODE_FAILURE:
1462 os_strlcpy(buf, "EAP Failure", sizeof(buf));
1463 break;
1464 default:
1465 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
1466 break;
1467 }
1468 buf[sizeof(buf) - 1] = '\0';
1469 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1470 HOSTAPD_LEVEL_DEBUG,
1471 "decapsulated EAP packet (code=%d id=%d len=%d) from RADIUS server: %s",
1472 hdr->code, hdr->identifier, be_to_host16(hdr->length),
1473 buf);
1474 sm->eap_if->aaaEapReq = TRUE;
1475
1476 wpabuf_free(sm->eap_if->aaaEapReqData);
1477 sm->eap_if->aaaEapReqData = eap;
1478 }
1479
1480
1481 static void ieee802_1x_get_keys(struct hostapd_data *hapd,
1482 struct sta_info *sta, struct radius_msg *msg,
1483 struct radius_msg *req,
1484 const u8 *shared_secret,
1485 size_t shared_secret_len)
1486 {
1487 struct radius_ms_mppe_keys *keys;
1488 u8 *buf;
1489 size_t len;
1490 struct eapol_state_machine *sm = sta->eapol_sm;
1491
1492 if (!sm)
1493 return;
1494
1495 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
1496 shared_secret_len);
1497
1498 if (keys && keys->send && keys->recv) {
1499 len = keys->send_len + keys->recv_len;
1500 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
1501 keys->send, keys->send_len);
1502 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
1503 keys->recv, keys->recv_len);
1504
1505 os_free(sm->eap_if->aaaEapKeyData);
1506 sm->eap_if->aaaEapKeyData = os_malloc(len);
1507 if (sm->eap_if->aaaEapKeyData) {
1508 os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
1509 keys->recv_len);
1510 os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
1511 keys->send, keys->send_len);
1512 sm->eap_if->aaaEapKeyDataLen = len;
1513 sm->eap_if->aaaEapKeyAvailable = TRUE;
1514 }
1515 } else {
1516 wpa_printf(MSG_DEBUG,
1517 "MS-MPPE: 1x_get_keys, could not get keys: %p send: %p recv: %p",
1518 keys, keys ? keys->send : NULL,
1519 keys ? keys->recv : NULL);
1520 }
1521
1522 if (keys) {
1523 os_free(keys->send);
1524 os_free(keys->recv);
1525 os_free(keys);
1526 }
1527
1528 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_EAP_KEY_NAME, &buf, &len,
1529 NULL) == 0) {
1530 os_free(sm->eap_if->eapSessionId);
1531 sm->eap_if->eapSessionId = os_memdup(buf, len);
1532 if (sm->eap_if->eapSessionId) {
1533 sm->eap_if->eapSessionIdLen = len;
1534 wpa_hexdump(MSG_DEBUG, "EAP-Key Name",
1535 sm->eap_if->eapSessionId,
1536 sm->eap_if->eapSessionIdLen);
1537 }
1538 } else {
1539 sm->eap_if->eapSessionIdLen = 0;
1540 }
1541 }
1542
1543
1544 static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
1545 struct sta_info *sta,
1546 struct radius_msg *msg)
1547 {
1548 u8 *attr_class;
1549 size_t class_len;
1550 struct eapol_state_machine *sm = sta->eapol_sm;
1551 int count, i;
1552 struct radius_attr_data *nclass;
1553 size_t nclass_count;
1554
1555 if (!hapd->conf->radius->acct_server || !hapd->radius || !sm)
1556 return;
1557
1558 radius_free_class(&sm->radius_class);
1559 count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
1560 if (count <= 0)
1561 return;
1562
1563 nclass = os_calloc(count, sizeof(struct radius_attr_data));
1564 if (!nclass)
1565 return;
1566
1567 nclass_count = 0;
1568
1569 attr_class = NULL;
1570 for (i = 0; i < count; i++) {
1571 do {
1572 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
1573 &attr_class, &class_len,
1574 attr_class) < 0) {
1575 i = count;
1576 break;
1577 }
1578 } while (class_len < 1);
1579
1580 nclass[nclass_count].data = os_memdup(attr_class, class_len);
1581 if (!nclass[nclass_count].data)
1582 break;
1583
1584 nclass[nclass_count].len = class_len;
1585 nclass_count++;
1586 }
1587
1588 sm->radius_class.attr = nclass;
1589 sm->radius_class.count = nclass_count;
1590 wpa_printf(MSG_DEBUG,
1591 "IEEE 802.1X: Stored %lu RADIUS Class attributes for "
1592 MACSTR,
1593 (unsigned long) sm->radius_class.count,
1594 MAC2STR(sta->addr));
1595 }
1596
1597
1598 /* Update sta->identity based on User-Name attribute in Access-Accept */
1599 static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
1600 struct sta_info *sta,
1601 struct radius_msg *msg)
1602 {
1603 u8 *buf, *identity;
1604 size_t len;
1605 struct eapol_state_machine *sm = sta->eapol_sm;
1606
1607 if (!sm)
1608 return;
1609
1610 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
1611 NULL) < 0)
1612 return;
1613
1614 identity = (u8 *) dup_binstr(buf, len);
1615 if (!identity)
1616 return;
1617
1618 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1619 HOSTAPD_LEVEL_DEBUG,
1620 "old identity '%s' updated with User-Name from Access-Accept '%s'",
1621 sm->identity ? (char *) sm->identity : "N/A",
1622 (char *) identity);
1623
1624 os_free(sm->identity);
1625 sm->identity = identity;
1626 sm->identity_len = len;
1627 }
1628
1629
1630 /* Update CUI based on Chargeable-User-Identity attribute in Access-Accept */
1631 static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd,
1632 struct sta_info *sta,
1633 struct radius_msg *msg)
1634 {
1635 struct eapol_state_machine *sm = sta->eapol_sm;
1636 struct wpabuf *cui;
1637 u8 *buf;
1638 size_t len;
1639
1640 if (!sm)
1641 return;
1642
1643 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
1644 &buf, &len, NULL) < 0)
1645 return;
1646
1647 cui = wpabuf_alloc_copy(buf, len);
1648 if (!cui)
1649 return;
1650
1651 wpabuf_free(sm->radius_cui);
1652 sm->radius_cui = cui;
1653 }
1654
1655
1656 #ifdef CONFIG_HS20
1657
1658 static void ieee802_1x_hs20_sub_rem(struct sta_info *sta, u8 *pos, size_t len)
1659 {
1660 sta->remediation = 1;
1661 os_free(sta->remediation_url);
1662 if (len > 2) {
1663 sta->remediation_url = os_malloc(len);
1664 if (!sta->remediation_url)
1665 return;
1666 sta->remediation_method = pos[0];
1667 os_memcpy(sta->remediation_url, pos + 1, len - 1);
1668 sta->remediation_url[len - 1] = '\0';
1669 wpa_printf(MSG_DEBUG,
1670 "HS 2.0: Subscription remediation needed for "
1671 MACSTR " - server method %u URL %s",
1672 MAC2STR(sta->addr), sta->remediation_method,
1673 sta->remediation_url);
1674 } else {
1675 sta->remediation_url = NULL;
1676 wpa_printf(MSG_DEBUG,
1677 "HS 2.0: Subscription remediation needed for "
1678 MACSTR, MAC2STR(sta->addr));
1679 }
1680 /* TODO: assign the STA into remediation VLAN or add filtering */
1681 }
1682
1683
1684 static void ieee802_1x_hs20_deauth_req(struct hostapd_data *hapd,
1685 struct sta_info *sta, u8 *pos,
1686 size_t len)
1687 {
1688 if (len < 3)
1689 return; /* Malformed information */
1690 sta->hs20_deauth_requested = 1;
1691 wpa_printf(MSG_DEBUG,
1692 "HS 2.0: Deauthentication request - Code %u Re-auth Delay %u",
1693 *pos, WPA_GET_LE16(pos + 1));
1694 wpabuf_free(sta->hs20_deauth_req);
1695 sta->hs20_deauth_req = wpabuf_alloc(len + 1);
1696 if (sta->hs20_deauth_req) {
1697 wpabuf_put_data(sta->hs20_deauth_req, pos, 3);
1698 wpabuf_put_u8(sta->hs20_deauth_req, len - 3);
1699 wpabuf_put_data(sta->hs20_deauth_req, pos + 3, len - 3);
1700 }
1701 ap_sta_session_timeout(hapd, sta, hapd->conf->hs20_deauth_req_timeout);
1702 }
1703
1704
1705 static void ieee802_1x_hs20_session_info(struct hostapd_data *hapd,
1706 struct sta_info *sta, u8 *pos,
1707 size_t len, int session_timeout)
1708 {
1709 unsigned int swt;
1710 int warning_time, beacon_int;
1711
1712 if (len < 1)
1713 return; /* Malformed information */
1714 os_free(sta->hs20_session_info_url);
1715 sta->hs20_session_info_url = os_malloc(len);
1716 if (!sta->hs20_session_info_url)
1717 return;
1718 swt = pos[0];
1719 os_memcpy(sta->hs20_session_info_url, pos + 1, len - 1);
1720 sta->hs20_session_info_url[len - 1] = '\0';
1721 wpa_printf(MSG_DEBUG,
1722 "HS 2.0: Session Information URL='%s' SWT=%u (session_timeout=%d)",
1723 sta->hs20_session_info_url, swt, session_timeout);
1724 if (session_timeout < 0) {
1725 wpa_printf(MSG_DEBUG,
1726 "HS 2.0: No Session-Timeout set - ignore session info URL");
1727 return;
1728 }
1729 if (swt == 255)
1730 swt = 1; /* Use one minute as the AP selected value */
1731
1732 if ((unsigned int) session_timeout < swt * 60)
1733 warning_time = 0;
1734 else
1735 warning_time = session_timeout - swt * 60;
1736
1737 beacon_int = hapd->iconf->beacon_int;
1738 if (beacon_int < 1)
1739 beacon_int = 100; /* best guess */
1740 sta->hs20_disassoc_timer = swt * 60 * 1000 / beacon_int * 125 / 128;
1741 if (sta->hs20_disassoc_timer > 65535)
1742 sta->hs20_disassoc_timer = 65535;
1743
1744 ap_sta_session_warning_timeout(hapd, sta, warning_time);
1745 }
1746
1747
1748 static void ieee802_1x_hs20_t_c_filtering(struct hostapd_data *hapd,
1749 struct sta_info *sta, u8 *pos,
1750 size_t len)
1751 {
1752 if (len < 4)
1753 return; /* Malformed information */
1754 wpa_printf(MSG_DEBUG,
1755 "HS 2.0: Terms and Conditions filtering %02x %02x %02x %02x",
1756 pos[0], pos[1], pos[2], pos[3]);
1757 hs20_t_c_filtering(hapd, sta, pos[0] & BIT(0));
1758 }
1759
1760
1761 static void ieee802_1x_hs20_t_c_url(struct hostapd_data *hapd,
1762 struct sta_info *sta, u8 *pos, size_t len)
1763 {
1764 os_free(sta->t_c_url);
1765 sta->t_c_url = os_malloc(len + 1);
1766 if (!sta->t_c_url)
1767 return;
1768 os_memcpy(sta->t_c_url, pos, len);
1769 sta->t_c_url[len] = '\0';
1770 wpa_printf(MSG_DEBUG,
1771 "HS 2.0: Terms and Conditions URL %s", sta->t_c_url);
1772 }
1773
1774 #endif /* CONFIG_HS20 */
1775
1776
1777 static void ieee802_1x_check_hs20(struct hostapd_data *hapd,
1778 struct sta_info *sta,
1779 struct radius_msg *msg,
1780 int session_timeout)
1781 {
1782 #ifdef CONFIG_HS20
1783 u8 *buf, *pos, *end, type, sublen;
1784 size_t len;
1785
1786 buf = NULL;
1787 sta->remediation = 0;
1788 sta->hs20_deauth_requested = 0;
1789
1790 for (;;) {
1791 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_VENDOR_SPECIFIC,
1792 &buf, &len, buf) < 0)
1793 break;
1794 if (len < 6)
1795 continue;
1796 pos = buf;
1797 end = buf + len;
1798 if (WPA_GET_BE32(pos) != RADIUS_VENDOR_ID_WFA)
1799 continue;
1800 pos += 4;
1801
1802 type = *pos++;
1803 sublen = *pos++;
1804 if (sublen < 2)
1805 continue; /* invalid length */
1806 sublen -= 2; /* skip header */
1807 if (pos + sublen > end)
1808 continue; /* invalid WFA VSA */
1809
1810 switch (type) {
1811 case RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION:
1812 ieee802_1x_hs20_sub_rem(sta, pos, sublen);
1813 break;
1814 case RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ:
1815 ieee802_1x_hs20_deauth_req(hapd, sta, pos, sublen);
1816 break;
1817 case RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL:
1818 ieee802_1x_hs20_session_info(hapd, sta, pos, sublen,
1819 session_timeout);
1820 break;
1821 case RADIUS_VENDOR_ATTR_WFA_HS20_T_C_FILTERING:
1822 ieee802_1x_hs20_t_c_filtering(hapd, sta, pos, sublen);
1823 break;
1824 case RADIUS_VENDOR_ATTR_WFA_HS20_T_C_URL:
1825 ieee802_1x_hs20_t_c_url(hapd, sta, pos, sublen);
1826 break;
1827 }
1828 }
1829 #endif /* CONFIG_HS20 */
1830 }
1831
1832
1833 struct sta_id_search {
1834 u8 identifier;
1835 struct eapol_state_machine *sm;
1836 };
1837
1838
1839 static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
1840 struct sta_info *sta,
1841 void *ctx)
1842 {
1843 struct sta_id_search *id_search = ctx;
1844 struct eapol_state_machine *sm = sta->eapol_sm;
1845
1846 if (sm && sm->radius_identifier >= 0 &&
1847 sm->radius_identifier == id_search->identifier) {
1848 id_search->sm = sm;
1849 return 1;
1850 }
1851 return 0;
1852 }
1853
1854
1855 static struct eapol_state_machine *
1856 ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
1857 {
1858 struct sta_id_search id_search;
1859
1860 id_search.identifier = identifier;
1861 id_search.sm = NULL;
1862 ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
1863 return id_search.sm;
1864 }
1865
1866
1867 #ifndef CONFIG_NO_VLAN
1868 static int ieee802_1x_update_vlan(struct radius_msg *msg,
1869 struct hostapd_data *hapd,
1870 struct sta_info *sta)
1871 {
1872 struct vlan_description vlan_desc;
1873
1874 os_memset(&vlan_desc, 0, sizeof(vlan_desc));
1875 vlan_desc.notempty = !!radius_msg_get_vlanid(msg, &vlan_desc.untagged,
1876 MAX_NUM_TAGGED_VLAN,
1877 vlan_desc.tagged);
1878
1879 if (vlan_desc.notempty &&
1880 !hostapd_vlan_valid(hapd->conf->vlan, &vlan_desc)) {
1881 sta->eapol_sm->authFail = TRUE;
1882 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_RADIUS,
1883 HOSTAPD_LEVEL_INFO,
1884 "Invalid VLAN %d%s received from RADIUS server",
1885 vlan_desc.untagged,
1886 vlan_desc.tagged[0] ? "+" : "");
1887 os_memset(&vlan_desc, 0, sizeof(vlan_desc));
1888 ap_sta_set_vlan(hapd, sta, &vlan_desc);
1889 return -1;
1890 }
1891
1892 if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_REQUIRED &&
1893 !vlan_desc.notempty) {
1894 sta->eapol_sm->authFail = TRUE;
1895 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1896 HOSTAPD_LEVEL_INFO,
1897 "authentication server did not include required VLAN ID in Access-Accept");
1898 return -1;
1899 }
1900
1901 return ap_sta_set_vlan(hapd, sta, &vlan_desc);
1902 }
1903 #endif /* CONFIG_NO_VLAN */
1904
1905
1906 /**
1907 * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
1908 * @msg: RADIUS response message
1909 * @req: RADIUS request message
1910 * @shared_secret: RADIUS shared secret
1911 * @shared_secret_len: Length of shared_secret in octets
1912 * @data: Context data (struct hostapd_data *)
1913 * Returns: Processing status
1914 */
1915 static RadiusRxResult
1916 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
1917 const u8 *shared_secret, size_t shared_secret_len,
1918 void *data)
1919 {
1920 struct hostapd_data *hapd = data;
1921 struct sta_info *sta;
1922 u32 session_timeout = 0, termination_action, acct_interim_interval;
1923 int session_timeout_set;
1924 u32 reason_code;
1925 struct eapol_state_machine *sm;
1926 int override_eapReq = 0;
1927 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
1928
1929 sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
1930 if (!sm) {
1931 wpa_printf(MSG_DEBUG,
1932 "IEEE 802.1X: Could not find matching station for this RADIUS message");
1933 return RADIUS_RX_UNKNOWN;
1934 }
1935 sta = sm->sta;
1936
1937 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
1938 * present when packet contains an EAP-Message attribute */
1939 if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
1940 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
1941 0) < 0 &&
1942 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
1943 wpa_printf(MSG_DEBUG,
1944 "Allowing RADIUS Access-Reject without Message-Authenticator since it does not include EAP-Message");
1945 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
1946 req, 1)) {
1947 wpa_printf(MSG_INFO,
1948 "Incoming RADIUS packet did not have correct Message-Authenticator - dropped");
1949 return RADIUS_RX_INVALID_AUTHENTICATOR;
1950 }
1951
1952 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
1953 hdr->code != RADIUS_CODE_ACCESS_REJECT &&
1954 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
1955 wpa_printf(MSG_INFO, "Unknown RADIUS message code");
1956 return RADIUS_RX_UNKNOWN;
1957 }
1958
1959 sm->radius_identifier = -1;
1960 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
1961 MAC2STR(sta->addr));
1962
1963 radius_msg_free(sm->last_recv_radius);
1964 sm->last_recv_radius = msg;
1965
1966 session_timeout_set =
1967 !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
1968 &session_timeout);
1969 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
1970 &termination_action))
1971 termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
1972
1973 if (hapd->conf->acct_interim_interval == 0 &&
1974 hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
1975 radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
1976 &acct_interim_interval) == 0) {
1977 if (acct_interim_interval < 60) {
1978 hostapd_logger(hapd, sta->addr,
1979 HOSTAPD_MODULE_IEEE8021X,
1980 HOSTAPD_LEVEL_INFO,
1981 "ignored too small Acct-Interim-Interval %d",
1982 acct_interim_interval);
1983 } else
1984 sta->acct_interim_interval = acct_interim_interval;
1985 }
1986
1987
1988 switch (hdr->code) {
1989 case RADIUS_CODE_ACCESS_ACCEPT:
1990 #ifndef CONFIG_NO_VLAN
1991 if (hapd->conf->ssid.dynamic_vlan != DYNAMIC_VLAN_DISABLED &&
1992 ieee802_1x_update_vlan(msg, hapd, sta) < 0)
1993 break;
1994
1995 if (sta->vlan_id > 0) {
1996 hostapd_logger(hapd, sta->addr,
1997 HOSTAPD_MODULE_RADIUS,
1998 HOSTAPD_LEVEL_INFO,
1999 "VLAN ID %d", sta->vlan_id);
2000 }
2001
2002 if ((sta->flags & WLAN_STA_ASSOC) &&
2003 ap_sta_bind_vlan(hapd, sta) < 0)
2004 break;
2005 #endif /* CONFIG_NO_VLAN */
2006
2007 sta->session_timeout_set = !!session_timeout_set;
2008 os_get_reltime(&sta->session_timeout);
2009 sta->session_timeout.sec += session_timeout;
2010
2011 /* RFC 3580, Ch. 3.17 */
2012 if (session_timeout_set && termination_action ==
2013 RADIUS_TERMINATION_ACTION_RADIUS_REQUEST)
2014 sm->reAuthPeriod = session_timeout;
2015 else if (session_timeout_set)
2016 ap_sta_session_timeout(hapd, sta, session_timeout);
2017 else
2018 ap_sta_no_session_timeout(hapd, sta);
2019
2020 sm->eap_if->aaaSuccess = TRUE;
2021 override_eapReq = 1;
2022 ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
2023 shared_secret_len);
2024 ieee802_1x_store_radius_class(hapd, sta, msg);
2025 ieee802_1x_update_sta_identity(hapd, sta, msg);
2026 ieee802_1x_update_sta_cui(hapd, sta, msg);
2027 ieee802_1x_check_hs20(hapd, sta, msg,
2028 session_timeout_set ?
2029 (int) session_timeout : -1);
2030 break;
2031 case RADIUS_CODE_ACCESS_REJECT:
2032 sm->eap_if->aaaFail = TRUE;
2033 override_eapReq = 1;
2034 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_WLAN_REASON_CODE,
2035 &reason_code) == 0) {
2036 wpa_printf(MSG_DEBUG,
2037 "RADIUS server indicated WLAN-Reason-Code %u in Access-Reject for "
2038 MACSTR, reason_code, MAC2STR(sta->addr));
2039 sta->disconnect_reason_code = reason_code;
2040 }
2041 break;
2042 case RADIUS_CODE_ACCESS_CHALLENGE:
2043 sm->eap_if->aaaEapReq = TRUE;
2044 if (session_timeout_set) {
2045 /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
2046 sm->eap_if->aaaMethodTimeout = session_timeout;
2047 hostapd_logger(hapd, sm->addr,
2048 HOSTAPD_MODULE_IEEE8021X,
2049 HOSTAPD_LEVEL_DEBUG,
2050 "using EAP timeout of %d seconds (from RADIUS)",
2051 sm->eap_if->aaaMethodTimeout);
2052 } else {
2053 /*
2054 * Use dynamic retransmission behavior per EAP
2055 * specification.
2056 */
2057 sm->eap_if->aaaMethodTimeout = 0;
2058 }
2059 break;
2060 }
2061
2062 ieee802_1x_decapsulate_radius(hapd, sta);
2063 if (override_eapReq)
2064 sm->eap_if->aaaEapReq = FALSE;
2065
2066 #ifdef CONFIG_FILS
2067 #ifdef NEED_AP_MLME
2068 if (sta->flags & WLAN_STA_PENDING_FILS_ERP) {
2069 /* TODO: Add a PMKSA entry on success? */
2070 ieee802_11_finish_fils_auth(
2071 hapd, sta, hdr->code == RADIUS_CODE_ACCESS_ACCEPT,
2072 sm->eap_if->aaaEapReqData,
2073 sm->eap_if->aaaEapKeyData,
2074 sm->eap_if->aaaEapKeyDataLen);
2075 }
2076 #endif /* NEED_AP_MLME */
2077 #endif /* CONFIG_FILS */
2078
2079 eapol_auth_step(sm);
2080
2081 return RADIUS_RX_QUEUED;
2082 }
2083 #endif /* CONFIG_NO_RADIUS */
2084
2085
2086 void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
2087 {
2088 struct eapol_state_machine *sm = sta->eapol_sm;
2089
2090 if (!sm)
2091 return;
2092
2093 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
2094 HOSTAPD_LEVEL_DEBUG, "aborting authentication");
2095
2096 #ifndef CONFIG_NO_RADIUS
2097 radius_msg_free(sm->last_recv_radius);
2098 sm->last_recv_radius = NULL;
2099 #endif /* CONFIG_NO_RADIUS */
2100
2101 if (sm->eap_if->eapTimeout) {
2102 /*
2103 * Disconnect the STA since it did not reply to the last EAP
2104 * request and we cannot continue EAP processing (EAP-Failure
2105 * could only be sent if the EAP peer actually replied).
2106 */
2107 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "EAP Timeout, STA " MACSTR,
2108 MAC2STR(sta->addr));
2109
2110 sm->eap_if->portEnabled = FALSE;
2111 ap_sta_disconnect(hapd, sta, sta->addr,
2112 WLAN_REASON_PREV_AUTH_NOT_VALID);
2113 }
2114 }
2115
2116
2117 static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
2118 {
2119 struct eapol_authenticator *eapol = hapd->eapol_auth;
2120
2121 if (hapd->conf->default_wep_key_len < 1)
2122 return 0;
2123
2124 os_free(eapol->default_wep_key);
2125 eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
2126 if (!eapol->default_wep_key ||
2127 random_get_bytes(eapol->default_wep_key,
2128 hapd->conf->default_wep_key_len)) {
2129 wpa_printf(MSG_INFO, "Could not generate random WEP key");
2130 os_free(eapol->default_wep_key);
2131 eapol->default_wep_key = NULL;
2132 return -1;
2133 }
2134
2135 wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
2136 eapol->default_wep_key,
2137 hapd->conf->default_wep_key_len);
2138
2139 return 0;
2140 }
2141
2142
2143 static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
2144 struct sta_info *sta, void *ctx)
2145 {
2146 if (sta->eapol_sm) {
2147 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
2148 eapol_auth_step(sta->eapol_sm);
2149 }
2150 return 0;
2151 }
2152
2153
2154 static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
2155 {
2156 struct hostapd_data *hapd = eloop_ctx;
2157 struct eapol_authenticator *eapol = hapd->eapol_auth;
2158
2159 if (eapol->default_wep_key_idx >= 3)
2160 eapol->default_wep_key_idx =
2161 hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
2162 else
2163 eapol->default_wep_key_idx++;
2164
2165 wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
2166 eapol->default_wep_key_idx);
2167
2168 if (ieee802_1x_rekey_broadcast(hapd)) {
2169 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
2170 HOSTAPD_LEVEL_WARNING,
2171 "failed to generate a new broadcast key");
2172 os_free(eapol->default_wep_key);
2173 eapol->default_wep_key = NULL;
2174 return;
2175 }
2176
2177 /* TODO: Could setup key for RX here, but change default TX keyid only
2178 * after new broadcast key has been sent to all stations. */
2179 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
2180 broadcast_ether_addr,
2181 eapol->default_wep_key_idx, 0, 1, NULL, 0,
2182 eapol->default_wep_key,
2183 hapd->conf->default_wep_key_len,
2184 KEY_FLAG_GROUP_RX_TX_DEFAULT)) {
2185 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
2186 HOSTAPD_LEVEL_WARNING,
2187 "failed to configure a new broadcast key");
2188 os_free(eapol->default_wep_key);
2189 eapol->default_wep_key = NULL;
2190 return;
2191 }
2192
2193 ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
2194
2195 if (hapd->conf->wep_rekeying_period > 0) {
2196 eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
2197 ieee802_1x_rekey, hapd, NULL);
2198 }
2199 }
2200
2201
2202 static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
2203 const u8 *data, size_t datalen)
2204 {
2205 #ifdef CONFIG_WPS
2206 struct sta_info *sta = sta_ctx;
2207
2208 if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
2209 WLAN_STA_MAYBE_WPS) {
2210 const u8 *identity;
2211 size_t identity_len;
2212 struct eapol_state_machine *sm = sta->eapol_sm;
2213
2214 identity = eap_get_identity(sm->eap, &identity_len);
2215 if (identity &&
2216 ((identity_len == WSC_ID_ENROLLEE_LEN &&
2217 os_memcmp(identity, WSC_ID_ENROLLEE,
2218 WSC_ID_ENROLLEE_LEN) == 0) ||
2219 (identity_len == WSC_ID_REGISTRAR_LEN &&
2220 os_memcmp(identity, WSC_ID_REGISTRAR,
2221 WSC_ID_REGISTRAR_LEN) == 0))) {
2222 wpa_printf(MSG_DEBUG,
2223 "WPS: WLAN_STA_MAYBE_WPS -> WLAN_STA_WPS");
2224 sta->flags |= WLAN_STA_WPS;
2225 }
2226 }
2227 #endif /* CONFIG_WPS */
2228
2229 ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
2230 }
2231
2232
2233 static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
2234 const u8 *data, size_t datalen)
2235 {
2236 #ifndef CONFIG_NO_RADIUS
2237 struct hostapd_data *hapd = ctx;
2238 struct sta_info *sta = sta_ctx;
2239
2240 ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
2241 #endif /* CONFIG_NO_RADIUS */
2242 }
2243
2244
2245 static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
2246 int preauth, int remediation)
2247 {
2248 struct hostapd_data *hapd = ctx;
2249 struct sta_info *sta = sta_ctx;
2250
2251 if (preauth)
2252 rsn_preauth_finished(hapd, sta, success);
2253 else
2254 ieee802_1x_finished(hapd, sta, success, remediation);
2255 }
2256
2257
2258 static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
2259 size_t identity_len, int phase2,
2260 struct eap_user *user)
2261 {
2262 struct hostapd_data *hapd = ctx;
2263 const struct hostapd_eap_user *eap_user;
2264 int i;
2265 int rv = -1;
2266
2267 eap_user = hostapd_get_eap_user(hapd, identity, identity_len, phase2);
2268 if (!eap_user)
2269 goto out;
2270
2271 os_memset(user, 0, sizeof(*user));
2272 user->phase2 = phase2;
2273 for (i = 0; i < EAP_MAX_METHODS; i++) {
2274 user->methods[i].vendor = eap_user->methods[i].vendor;
2275 user->methods[i].method = eap_user->methods[i].method;
2276 }
2277
2278 if (eap_user->password) {
2279 user->password = os_memdup(eap_user->password,
2280 eap_user->password_len);
2281 if (!user->password)
2282 goto out;
2283 user->password_len = eap_user->password_len;
2284 user->password_hash = eap_user->password_hash;
2285 if (eap_user->salt && eap_user->salt_len) {
2286 user->salt = os_memdup(eap_user->salt,
2287 eap_user->salt_len);
2288 if (!user->salt)
2289 goto out;
2290 user->salt_len = eap_user->salt_len;
2291 }
2292 }
2293 user->force_version = eap_user->force_version;
2294 user->macacl = eap_user->macacl;
2295 user->ttls_auth = eap_user->ttls_auth;
2296 user->remediation = eap_user->remediation;
2297 rv = 0;
2298
2299 out:
2300 if (rv)
2301 wpa_printf(MSG_DEBUG, "%s: Failed to find user", __func__);
2302
2303 return rv;
2304 }
2305
2306
2307 static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
2308 {
2309 struct hostapd_data *hapd = ctx;
2310 struct sta_info *sta;
2311
2312 sta = ap_get_sta(hapd, addr);
2313 if (!sta || !sta->eapol_sm)
2314 return 0;
2315 return 1;
2316 }
2317
2318
2319 static void ieee802_1x_logger(void *ctx, const u8 *addr,
2320 eapol_logger_level level, const char *txt)
2321 {
2322 #ifndef CONFIG_NO_HOSTAPD_LOGGER
2323 struct hostapd_data *hapd = ctx;
2324 int hlevel;
2325
2326 switch (level) {
2327 case EAPOL_LOGGER_WARNING:
2328 hlevel = HOSTAPD_LEVEL_WARNING;
2329 break;
2330 case EAPOL_LOGGER_INFO:
2331 hlevel = HOSTAPD_LEVEL_INFO;
2332 break;
2333 case EAPOL_LOGGER_DEBUG:
2334 default:
2335 hlevel = HOSTAPD_LEVEL_DEBUG;
2336 break;
2337 }
2338
2339 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
2340 txt);
2341 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
2342 }
2343
2344
2345 static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
2346 int authorized)
2347 {
2348 struct hostapd_data *hapd = ctx;
2349 struct sta_info *sta = sta_ctx;
2350
2351 ieee802_1x_set_sta_authorized(hapd, sta, authorized);
2352 }
2353
2354
2355 static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
2356 {
2357 struct hostapd_data *hapd = ctx;
2358 struct sta_info *sta = sta_ctx;
2359
2360 ieee802_1x_abort_auth(hapd, sta);
2361 }
2362
2363
2364 static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
2365 {
2366 #ifndef CONFIG_FIPS
2367 #ifndef CONFIG_NO_RC4
2368 struct hostapd_data *hapd = ctx;
2369 struct sta_info *sta = sta_ctx;
2370
2371 ieee802_1x_tx_key(hapd, sta);
2372 #endif /* CONFIG_NO_RC4 */
2373 #endif /* CONFIG_FIPS */
2374 }
2375
2376
2377 static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
2378 enum eapol_event type)
2379 {
2380 /* struct hostapd_data *hapd = ctx; */
2381 struct sta_info *sta = sta_ctx;
2382
2383 switch (type) {
2384 case EAPOL_AUTH_SM_CHANGE:
2385 wpa_auth_sm_notify(sta->wpa_sm);
2386 break;
2387 case EAPOL_AUTH_REAUTHENTICATE:
2388 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
2389 break;
2390 }
2391 }
2392
2393
2394 #ifdef CONFIG_ERP
2395
2396 static struct eap_server_erp_key *
2397 ieee802_1x_erp_get_key(void *ctx, const char *keyname)
2398 {
2399 struct hostapd_data *hapd = ctx;
2400 struct eap_server_erp_key *erp;
2401
2402 dl_list_for_each(erp, &hapd->erp_keys, struct eap_server_erp_key,
2403 list) {
2404 if (os_strcmp(erp->keyname_nai, keyname) == 0)
2405 return erp;
2406 }
2407
2408 return NULL;
2409 }
2410
2411
2412 static int ieee802_1x_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
2413 {
2414 struct hostapd_data *hapd = ctx;
2415
2416 dl_list_add(&hapd->erp_keys, &erp->list);
2417 return 0;
2418 }
2419
2420 #endif /* CONFIG_ERP */
2421
2422
2423 int ieee802_1x_init(struct hostapd_data *hapd)
2424 {
2425 int i;
2426 struct eapol_auth_config conf;
2427 struct eapol_auth_cb cb;
2428
2429 dl_list_init(&hapd->erp_keys);
2430
2431 os_memset(&conf, 0, sizeof(conf));
2432 conf.eap_cfg = hapd->eap_cfg;
2433 conf.ctx = hapd;
2434 conf.eap_reauth_period = hapd->conf->eap_reauth_period;
2435 conf.wpa = hapd->conf->wpa;
2436 conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
2437 conf.eap_req_id_text = hapd->conf->eap_req_id_text;
2438 conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
2439 conf.erp_send_reauth_start = hapd->conf->erp_send_reauth_start;
2440 conf.erp_domain = hapd->conf->erp_domain;
2441
2442 os_memset(&cb, 0, sizeof(cb));
2443 cb.eapol_send = ieee802_1x_eapol_send;
2444 cb.aaa_send = ieee802_1x_aaa_send;
2445 cb.finished = _ieee802_1x_finished;
2446 cb.get_eap_user = ieee802_1x_get_eap_user;
2447 cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
2448 cb.logger = ieee802_1x_logger;
2449 cb.set_port_authorized = ieee802_1x_set_port_authorized;
2450 cb.abort_auth = _ieee802_1x_abort_auth;
2451 cb.tx_key = _ieee802_1x_tx_key;
2452 cb.eapol_event = ieee802_1x_eapol_event;
2453 #ifdef CONFIG_ERP
2454 cb.erp_get_key = ieee802_1x_erp_get_key;
2455 cb.erp_add_key = ieee802_1x_erp_add_key;
2456 #endif /* CONFIG_ERP */
2457
2458 hapd->eapol_auth = eapol_auth_init(&conf, &cb);
2459 if (!hapd->eapol_auth)
2460 return -1;
2461
2462 if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
2463 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
2464 return -1;
2465
2466 #ifndef CONFIG_NO_RADIUS
2467 if (radius_client_register(hapd->radius, RADIUS_AUTH,
2468 ieee802_1x_receive_auth, hapd))
2469 return -1;
2470 #endif /* CONFIG_NO_RADIUS */
2471
2472 if (hapd->conf->default_wep_key_len) {
2473 for (i = 0; i < 4; i++)
2474 hostapd_drv_set_key(hapd->conf->iface, hapd,
2475 WPA_ALG_NONE, NULL, i, 0, 0, NULL,
2476 0, NULL, 0, KEY_FLAG_GROUP_RX_TX);
2477
2478 ieee802_1x_rekey(hapd, NULL);
2479
2480 if (!hapd->eapol_auth->default_wep_key)
2481 return -1;
2482 }
2483
2484 return 0;
2485 }
2486
2487
2488 void ieee802_1x_erp_flush(struct hostapd_data *hapd)
2489 {
2490 struct eap_server_erp_key *erp;
2491
2492 while ((erp = dl_list_first(&hapd->erp_keys, struct eap_server_erp_key,
2493 list)) != NULL) {
2494 dl_list_del(&erp->list);
2495 bin_clear_free(erp, sizeof(*erp));
2496 }
2497 }
2498
2499
2500 void ieee802_1x_deinit(struct hostapd_data *hapd)
2501 {
2502 eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
2503
2504 if (hapd->driver && hapd->drv_priv &&
2505 (hapd->conf->ieee802_1x || hapd->conf->wpa))
2506 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
2507
2508 eapol_auth_deinit(hapd->eapol_auth);
2509 hapd->eapol_auth = NULL;
2510
2511 ieee802_1x_erp_flush(hapd);
2512 }
2513
2514
2515 int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2516 const u8 *buf, size_t len, int ack)
2517 {
2518 struct ieee80211_hdr *hdr;
2519 u8 *pos;
2520 const unsigned char rfc1042_hdr[ETH_ALEN] =
2521 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
2522
2523 if (!sta)
2524 return -1;
2525 if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2)
2526 return 0;
2527
2528 hdr = (struct ieee80211_hdr *) buf;
2529 pos = (u8 *) (hdr + 1);
2530 if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
2531 return 0;
2532 pos += sizeof(rfc1042_hdr);
2533 if (WPA_GET_BE16(pos) != ETH_P_PAE)
2534 return 0;
2535 pos += 2;
2536
2537 return ieee802_1x_eapol_tx_status(hapd, sta, pos, buf + len - pos,
2538 ack);
2539 }
2540
2541
2542 int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2543 const u8 *buf, int len, int ack)
2544 {
2545 const struct ieee802_1x_hdr *xhdr =
2546 (const struct ieee802_1x_hdr *) buf;
2547 const u8 *pos = buf + sizeof(*xhdr);
2548 struct ieee802_1x_eapol_key *key;
2549
2550 if (len < (int) sizeof(*xhdr))
2551 return 0;
2552 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR
2553 " TX status - version=%d type=%d length=%d - ack=%d",
2554 MAC2STR(sta->addr), xhdr->version, xhdr->type,
2555 be_to_host16(xhdr->length), ack);
2556
2557 #ifdef CONFIG_WPS
2558 if (xhdr->type == IEEE802_1X_TYPE_EAP_PACKET && ack &&
2559 (sta->flags & WLAN_STA_WPS) &&
2560 ap_sta_pending_delayed_1x_auth_fail_disconnect(hapd, sta)) {
2561 wpa_printf(MSG_DEBUG,
2562 "WPS: Indicate EAP completion on ACK for EAP-Failure");
2563 hostapd_wps_eap_completed(hapd);
2564 }
2565 #endif /* CONFIG_WPS */
2566
2567 if (xhdr->type != IEEE802_1X_TYPE_EAPOL_KEY)
2568 return 0;
2569
2570 if (pos + sizeof(struct wpa_eapol_key) <= buf + len) {
2571 const struct wpa_eapol_key *wpa;
2572
2573 wpa = (const struct wpa_eapol_key *) pos;
2574 if (wpa->type == EAPOL_KEY_TYPE_RSN ||
2575 wpa->type == EAPOL_KEY_TYPE_WPA)
2576 wpa_auth_eapol_key_tx_status(hapd->wpa_auth,
2577 sta->wpa_sm, ack);
2578 }
2579
2580 /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
2581 * or Authenticator state machines, but EAPOL-Key packets are not
2582 * retransmitted in case of failure. Try to re-send failed EAPOL-Key
2583 * packets couple of times because otherwise STA keys become
2584 * unsynchronized with AP. */
2585 if (!ack && pos + sizeof(*key) <= buf + len) {
2586 key = (struct ieee802_1x_eapol_key *) pos;
2587 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
2588 HOSTAPD_LEVEL_DEBUG,
2589 "did not Ack EAPOL-Key frame (%scast index=%d)",
2590 key->key_index & BIT(7) ? "uni" : "broad",
2591 key->key_index & ~BIT(7));
2592 /* TODO: re-send EAPOL-Key couple of times (with short delay
2593 * between them?). If all attempt fail, report error and
2594 * deauthenticate STA so that it will get new keys when
2595 * authenticating again (e.g., after returning in range).
2596 * Separate limit/transmit state needed both for unicast and
2597 * broadcast keys(?) */
2598 }
2599 /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
2600 * to here and change the key only if the EAPOL-Key packet was Acked.
2601 */
2602
2603 return 1;
2604 }
2605
2606
2607 u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
2608 {
2609 if (!sm || !sm->identity)
2610 return NULL;
2611
2612 *len = sm->identity_len;
2613 return sm->identity;
2614 }
2615
2616
2617 u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
2618 int idx)
2619 {
2620 if (!sm || !sm->radius_class.attr ||
2621 idx >= (int) sm->radius_class.count)
2622 return NULL;
2623
2624 *len = sm->radius_class.attr[idx].len;
2625 return sm->radius_class.attr[idx].data;
2626 }
2627
2628
2629 struct wpabuf * ieee802_1x_get_radius_cui(struct eapol_state_machine *sm)
2630 {
2631 if (!sm)
2632 return NULL;
2633 return sm->radius_cui;
2634 }
2635
2636
2637 const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
2638 {
2639 *len = 0;
2640 if (!sm)
2641 return NULL;
2642
2643 *len = sm->eap_if->eapKeyDataLen;
2644 return sm->eap_if->eapKeyData;
2645 }
2646
2647
2648 #ifdef CONFIG_MACSEC
2649 const u8 * ieee802_1x_get_session_id(struct eapol_state_machine *sm,
2650 size_t *len)
2651 {
2652 *len = 0;
2653 if (!sm || !sm->eap_if)
2654 return NULL;
2655
2656 *len = sm->eap_if->eapSessionIdLen;
2657 return sm->eap_if->eapSessionId;
2658 }
2659 #endif /* CONFIG_MACSEC */
2660
2661
2662 void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
2663 int enabled)
2664 {
2665 if (!sm)
2666 return;
2667 sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
2668 eapol_auth_step(sm);
2669 }
2670
2671
2672 void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
2673 int valid)
2674 {
2675 if (!sm)
2676 return;
2677 sm->portValid = valid ? TRUE : FALSE;
2678 eapol_auth_step(sm);
2679 }
2680
2681
2682 void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
2683 {
2684 if (!sm)
2685 return;
2686 if (pre_auth)
2687 sm->flags |= EAPOL_SM_PREAUTH;
2688 else
2689 sm->flags &= ~EAPOL_SM_PREAUTH;
2690 }
2691
2692
2693 static const char * bool_txt(Boolean val)
2694 {
2695 return val ? "TRUE" : "FALSE";
2696 }
2697
2698
2699 int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2700 {
2701 /* TODO */
2702 return 0;
2703 }
2704
2705
2706 int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2707 char *buf, size_t buflen)
2708 {
2709 int len = 0, ret;
2710 struct eapol_state_machine *sm = sta->eapol_sm;
2711 struct os_reltime diff;
2712 const char *name1;
2713 const char *name2;
2714 char *identity_buf = NULL;
2715
2716 if (!sm)
2717 return 0;
2718
2719 ret = os_snprintf(buf + len, buflen - len,
2720 "dot1xPaePortNumber=%d\n"
2721 "dot1xPaePortProtocolVersion=%d\n"
2722 "dot1xPaePortCapabilities=1\n"
2723 "dot1xPaePortInitialize=%d\n"
2724 "dot1xPaePortReauthenticate=FALSE\n",
2725 sta->aid,
2726 EAPOL_VERSION,
2727 sm->initialize);
2728 if (os_snprintf_error(buflen - len, ret))
2729 return len;
2730 len += ret;
2731
2732 /* dot1xAuthConfigTable */
2733 ret = os_snprintf(buf + len, buflen - len,
2734 "dot1xAuthPaeState=%d\n"
2735 "dot1xAuthBackendAuthState=%d\n"
2736 "dot1xAuthAdminControlledDirections=%d\n"
2737 "dot1xAuthOperControlledDirections=%d\n"
2738 "dot1xAuthAuthControlledPortStatus=%d\n"
2739 "dot1xAuthAuthControlledPortControl=%d\n"
2740 "dot1xAuthQuietPeriod=%u\n"
2741 "dot1xAuthServerTimeout=%u\n"
2742 "dot1xAuthReAuthPeriod=%u\n"
2743 "dot1xAuthReAuthEnabled=%s\n"
2744 "dot1xAuthKeyTxEnabled=%s\n",
2745 sm->auth_pae_state + 1,
2746 sm->be_auth_state + 1,
2747 sm->adminControlledDirections,
2748 sm->operControlledDirections,
2749 sm->authPortStatus,
2750 sm->portControl,
2751 sm->quietPeriod,
2752 sm->serverTimeout,
2753 sm->reAuthPeriod,
2754 bool_txt(sm->reAuthEnabled),
2755 bool_txt(sm->keyTxEnabled));
2756 if (os_snprintf_error(buflen - len, ret))
2757 return len;
2758 len += ret;
2759
2760 /* dot1xAuthStatsTable */
2761 ret = os_snprintf(buf + len, buflen - len,
2762 "dot1xAuthEapolFramesRx=%u\n"
2763 "dot1xAuthEapolFramesTx=%u\n"
2764 "dot1xAuthEapolStartFramesRx=%u\n"
2765 "dot1xAuthEapolLogoffFramesRx=%u\n"
2766 "dot1xAuthEapolRespIdFramesRx=%u\n"
2767 "dot1xAuthEapolRespFramesRx=%u\n"
2768 "dot1xAuthEapolReqIdFramesTx=%u\n"
2769 "dot1xAuthEapolReqFramesTx=%u\n"
2770 "dot1xAuthInvalidEapolFramesRx=%u\n"
2771 "dot1xAuthEapLengthErrorFramesRx=%u\n"
2772 "dot1xAuthLastEapolFrameVersion=%u\n"
2773 "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
2774 sm->dot1xAuthEapolFramesRx,
2775 sm->dot1xAuthEapolFramesTx,
2776 sm->dot1xAuthEapolStartFramesRx,
2777 sm->dot1xAuthEapolLogoffFramesRx,
2778 sm->dot1xAuthEapolRespIdFramesRx,
2779 sm->dot1xAuthEapolRespFramesRx,
2780 sm->dot1xAuthEapolReqIdFramesTx,
2781 sm->dot1xAuthEapolReqFramesTx,
2782 sm->dot1xAuthInvalidEapolFramesRx,
2783 sm->dot1xAuthEapLengthErrorFramesRx,
2784 sm->dot1xAuthLastEapolFrameVersion,
2785 MAC2STR(sm->addr));
2786 if (os_snprintf_error(buflen - len, ret))
2787 return len;
2788 len += ret;
2789
2790 /* dot1xAuthDiagTable */
2791 ret = os_snprintf(buf + len, buflen - len,
2792 "dot1xAuthEntersConnecting=%u\n"
2793 "dot1xAuthEapLogoffsWhileConnecting=%u\n"
2794 "dot1xAuthEntersAuthenticating=%u\n"
2795 "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
2796 "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
2797 "dot1xAuthAuthFailWhileAuthenticating=%u\n"
2798 "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
2799 "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
2800 "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
2801 "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
2802 "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
2803 "dot1xAuthBackendResponses=%u\n"
2804 "dot1xAuthBackendAccessChallenges=%u\n"
2805 "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
2806 "dot1xAuthBackendAuthSuccesses=%u\n"
2807 "dot1xAuthBackendAuthFails=%u\n",
2808 sm->authEntersConnecting,
2809 sm->authEapLogoffsWhileConnecting,
2810 sm->authEntersAuthenticating,
2811 sm->authAuthSuccessesWhileAuthenticating,
2812 sm->authAuthTimeoutsWhileAuthenticating,
2813 sm->authAuthFailWhileAuthenticating,
2814 sm->authAuthEapStartsWhileAuthenticating,
2815 sm->authAuthEapLogoffWhileAuthenticating,
2816 sm->authAuthReauthsWhileAuthenticated,
2817 sm->authAuthEapStartsWhileAuthenticated,
2818 sm->authAuthEapLogoffWhileAuthenticated,
2819 sm->backendResponses,
2820 sm->backendAccessChallenges,
2821 sm->backendOtherRequestsToSupplicant,
2822 sm->backendAuthSuccesses,
2823 sm->backendAuthFails);
2824 if (os_snprintf_error(buflen - len, ret))
2825 return len;
2826 len += ret;
2827
2828 /* dot1xAuthSessionStatsTable */
2829 os_reltime_age(&sta->acct_session_start, &diff);
2830 if (sm->eap && !sm->identity) {
2831 const u8 *id;
2832 size_t id_len;
2833
2834 id = eap_get_identity(sm->eap, &id_len);
2835 if (id)
2836 identity_buf = dup_binstr(id, id_len);
2837 }
2838 ret = os_snprintf(buf + len, buflen - len,
2839 /* TODO: dot1xAuthSessionOctetsRx */
2840 /* TODO: dot1xAuthSessionOctetsTx */
2841 /* TODO: dot1xAuthSessionFramesRx */
2842 /* TODO: dot1xAuthSessionFramesTx */
2843 "dot1xAuthSessionId=%016llX\n"
2844 "dot1xAuthSessionAuthenticMethod=%d\n"
2845 "dot1xAuthSessionTime=%u\n"
2846 "dot1xAuthSessionTerminateCause=999\n"
2847 "dot1xAuthSessionUserName=%s\n",
2848 (unsigned long long) sta->acct_session_id,
2849 (wpa_key_mgmt_wpa_ieee8021x(
2850 wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
2851 1 : 2,
2852 (unsigned int) diff.sec,
2853 sm->identity ? (char *) sm->identity :
2854 (identity_buf ? identity_buf : "N/A"));
2855 os_free(identity_buf);
2856 if (os_snprintf_error(buflen - len, ret))
2857 return len;
2858 len += ret;
2859
2860 if (sm->acct_multi_session_id) {
2861 ret = os_snprintf(buf + len, buflen - len,
2862 "authMultiSessionId=%016llX\n",
2863 (unsigned long long)
2864 sm->acct_multi_session_id);
2865 if (os_snprintf_error(buflen - len, ret))
2866 return len;
2867 len += ret;
2868 }
2869
2870 name1 = eap_server_get_name(0, sm->eap_type_authsrv);
2871 name2 = eap_server_get_name(0, sm->eap_type_supp);
2872 ret = os_snprintf(buf + len, buflen - len,
2873 "last_eap_type_as=%d (%s)\n"
2874 "last_eap_type_sta=%d (%s)\n",
2875 sm->eap_type_authsrv, name1,
2876 sm->eap_type_supp, name2);
2877 if (os_snprintf_error(buflen - len, ret))
2878 return len;
2879 len += ret;
2880
2881 return len;
2882 }
2883
2884
2885 #ifdef CONFIG_HS20
2886 static void ieee802_1x_wnm_notif_send(void *eloop_ctx, void *timeout_ctx)
2887 {
2888 struct hostapd_data *hapd = eloop_ctx;
2889 struct sta_info *sta = timeout_ctx;
2890
2891 if (sta->remediation) {
2892 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2893 MACSTR " to indicate Subscription Remediation",
2894 MAC2STR(sta->addr));
2895 hs20_send_wnm_notification(hapd, sta->addr,
2896 sta->remediation_method,
2897 sta->remediation_url);
2898 os_free(sta->remediation_url);
2899 sta->remediation_url = NULL;
2900 }
2901
2902 if (sta->hs20_deauth_req) {
2903 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2904 MACSTR " to indicate imminent deauthentication",
2905 MAC2STR(sta->addr));
2906 hs20_send_wnm_notification_deauth_req(hapd, sta->addr,
2907 sta->hs20_deauth_req);
2908 }
2909
2910 if (sta->hs20_t_c_filtering) {
2911 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2912 MACSTR " to indicate Terms and Conditions filtering",
2913 MAC2STR(sta->addr));
2914 hs20_send_wnm_notification_t_c(hapd, sta->addr, sta->t_c_url);
2915 os_free(sta->t_c_url);
2916 sta->t_c_url = NULL;
2917 }
2918 }
2919 #endif /* CONFIG_HS20 */
2920
2921
2922 static void ieee802_1x_finished(struct hostapd_data *hapd,
2923 struct sta_info *sta, int success,
2924 int remediation)
2925 {
2926 const u8 *key;
2927 size_t len;
2928 /* TODO: get PMKLifetime from WPA parameters */
2929 static const int dot11RSNAConfigPMKLifetime = 43200;
2930 unsigned int session_timeout;
2931 struct os_reltime now, remaining;
2932
2933 #ifdef CONFIG_HS20
2934 if (remediation && !sta->remediation) {
2935 sta->remediation = 1;
2936 os_free(sta->remediation_url);
2937 sta->remediation_url =
2938 os_strdup(hapd->conf->subscr_remediation_url);
2939 sta->remediation_method = 1; /* SOAP-XML SPP */
2940 }
2941
2942 if (success && (sta->remediation || sta->hs20_deauth_req ||
2943 sta->hs20_t_c_filtering)) {
2944 wpa_printf(MSG_DEBUG, "HS 2.0: Schedule WNM-Notification to "
2945 MACSTR " in 100 ms", MAC2STR(sta->addr));
2946 eloop_cancel_timeout(ieee802_1x_wnm_notif_send, hapd, sta);
2947 eloop_register_timeout(0, 100000, ieee802_1x_wnm_notif_send,
2948 hapd, sta);
2949 }
2950 #endif /* CONFIG_HS20 */
2951
2952 #ifdef CONFIG_MACSEC
2953 ieee802_1x_notify_create_actor_hapd(hapd, sta);
2954 #endif /* CONFIG_MACSEC */
2955
2956 key = ieee802_1x_get_key(sta->eapol_sm, &len);
2957 if (sta->session_timeout_set) {
2958 os_get_reltime(&now);
2959 os_reltime_sub(&sta->session_timeout, &now, &remaining);
2960 session_timeout = (remaining.sec > 0) ? remaining.sec : 1;
2961 } else {
2962 session_timeout = dot11RSNAConfigPMKLifetime;
2963 }
2964 if (success && key && len >= PMK_LEN && !sta->remediation &&
2965 !sta->hs20_deauth_requested &&
2966 wpa_auth_pmksa_add(sta->wpa_sm, key, len, session_timeout,
2967 sta->eapol_sm) == 0) {
2968 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
2969 HOSTAPD_LEVEL_DEBUG,
2970 "Added PMKSA cache entry (IEEE 802.1X)");
2971 }
2972
2973 if (!success) {
2974 /*
2975 * Many devices require deauthentication after WPS provisioning
2976 * and some may not be be able to do that themselves, so
2977 * disconnect the client here. In addition, this may also
2978 * benefit IEEE 802.1X/EAPOL authentication cases, too since
2979 * the EAPOL PAE state machine would remain in HELD state for
2980 * considerable amount of time and some EAP methods, like
2981 * EAP-FAST with anonymous provisioning, may require another
2982 * EAPOL authentication to be started to complete connection.
2983 */
2984 ap_sta_delayed_1x_auth_fail_disconnect(hapd, sta);
2985 }
2986 }
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