1 /*
2 * hostapd / IEEE 802.1X-2004 Authenticator
3 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "utils/includes.h"
10
11 #include "utils/common.h"
12 #include "utils/eloop.h"
13 #include "crypto/md5.h"
14 #include "crypto/crypto.h"
15 #include "crypto/random.h"
16 #include "common/ieee802_11_defs.h"
17 #include "radius/radius.h"
18 #include "radius/radius_client.h"
19 #include "eap_server/eap.h"
20 #include "eap_common/eap_wsc_common.h"
21 #include "eapol_auth/eapol_auth_sm.h"
22 #include "eapol_auth/eapol_auth_sm_i.h"
23 #include "p2p/p2p.h"
24 #include "hostapd.h"
25 #include "accounting.h"
26 #include "sta_info.h"
27 #include "wpa_auth.h"
28 #include "preauth_auth.h"
29 #include "pmksa_cache_auth.h"
30 #include "ap_config.h"
31 #include "ap_drv_ops.h"
32 #include "ieee802_1x.h"
33
34
35 static void ieee802_1x_finished(struct hostapd_data *hapd,
36 struct sta_info *sta, int success);
37
38
ieee802_1x_send(struct hostapd_data * hapd,struct sta_info * sta,u8 type,const u8 * data,size_t datalen)39 static void ieee802_1x_send(struct hostapd_data *hapd, struct sta_info *sta,
40 u8 type, const u8 *data, size_t datalen)
41 {
42 u8 *buf;
43 struct ieee802_1x_hdr *xhdr;
44 size_t len;
45 int encrypt = 0;
46
47 len = sizeof(*xhdr) + datalen;
48 buf = os_zalloc(len);
49 if (buf == NULL) {
50 wpa_printf(MSG_ERROR, "malloc() failed for "
51 "ieee802_1x_send(len=%lu)",
52 (unsigned long) len);
53 return;
54 }
55
56 xhdr = (struct ieee802_1x_hdr *) buf;
57 xhdr->version = hapd->conf->eapol_version;
58 xhdr->type = type;
59 xhdr->length = host_to_be16(datalen);
60
61 if (datalen > 0 && data != NULL)
62 os_memcpy(xhdr + 1, data, datalen);
63
64 if (wpa_auth_pairwise_set(sta->wpa_sm))
65 encrypt = 1;
66 if (sta->flags & WLAN_STA_PREAUTH) {
67 rsn_preauth_send(hapd, sta, buf, len);
68 } else {
69 hostapd_drv_hapd_send_eapol(hapd, sta->addr, buf, len,
70 encrypt, sta->flags);
71 }
72
73 os_free(buf);
74 }
75
76
ieee802_1x_set_sta_authorized(struct hostapd_data * hapd,struct sta_info * sta,int authorized)77 void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
78 struct sta_info *sta, int authorized)
79 {
80 int res;
81
82 if (sta->flags & WLAN_STA_PREAUTH)
83 return;
84
85 if (authorized) {
86 ap_sta_set_authorized(hapd, sta, 1);
87 res = hostapd_set_authorized(hapd, sta, 1);
88 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
89 HOSTAPD_LEVEL_DEBUG, "authorizing port");
90 } else {
91 ap_sta_set_authorized(hapd, sta, 0);
92 res = hostapd_set_authorized(hapd, sta, 0);
93 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
94 HOSTAPD_LEVEL_DEBUG, "unauthorizing port");
95 }
96
97 if (res && errno != ENOENT) {
98 printf("Could not set station " MACSTR " flags for kernel "
99 "driver (errno=%d).\n", MAC2STR(sta->addr), errno);
100 }
101
102 if (authorized)
103 accounting_sta_start(hapd, sta);
104 }
105
106
ieee802_1x_tx_key_one(struct hostapd_data * hapd,struct sta_info * sta,int idx,int broadcast,u8 * key_data,size_t key_len)107 static void ieee802_1x_tx_key_one(struct hostapd_data *hapd,
108 struct sta_info *sta,
109 int idx, int broadcast,
110 u8 *key_data, size_t key_len)
111 {
112 u8 *buf, *ekey;
113 struct ieee802_1x_hdr *hdr;
114 struct ieee802_1x_eapol_key *key;
115 size_t len, ekey_len;
116 struct eapol_state_machine *sm = sta->eapol_sm;
117
118 if (sm == NULL)
119 return;
120
121 len = sizeof(*key) + key_len;
122 buf = os_zalloc(sizeof(*hdr) + len);
123 if (buf == NULL)
124 return;
125
126 hdr = (struct ieee802_1x_hdr *) buf;
127 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
128 key->type = EAPOL_KEY_TYPE_RC4;
129 WPA_PUT_BE16(key->key_length, key_len);
130 wpa_get_ntp_timestamp(key->replay_counter);
131
132 if (random_get_bytes(key->key_iv, sizeof(key->key_iv))) {
133 wpa_printf(MSG_ERROR, "Could not get random numbers");
134 os_free(buf);
135 return;
136 }
137
138 key->key_index = idx | (broadcast ? 0 : BIT(7));
139 if (hapd->conf->eapol_key_index_workaround) {
140 /* According to some information, WinXP Supplicant seems to
141 * interpret bit7 as an indication whether the key is to be
142 * activated, so make it possible to enable workaround that
143 * sets this bit for all keys. */
144 key->key_index |= BIT(7);
145 }
146
147 /* Key is encrypted using "Key-IV + MSK[0..31]" as the RC4-key and
148 * MSK[32..63] is used to sign the message. */
149 if (sm->eap_if->eapKeyData == NULL || sm->eap_if->eapKeyDataLen < 64) {
150 wpa_printf(MSG_ERROR, "No eapKeyData available for encrypting "
151 "and signing EAPOL-Key");
152 os_free(buf);
153 return;
154 }
155 os_memcpy((u8 *) (key + 1), key_data, key_len);
156 ekey_len = sizeof(key->key_iv) + 32;
157 ekey = os_malloc(ekey_len);
158 if (ekey == NULL) {
159 wpa_printf(MSG_ERROR, "Could not encrypt key");
160 os_free(buf);
161 return;
162 }
163 os_memcpy(ekey, key->key_iv, sizeof(key->key_iv));
164 os_memcpy(ekey + sizeof(key->key_iv), sm->eap_if->eapKeyData, 32);
165 rc4_skip(ekey, ekey_len, 0, (u8 *) (key + 1), key_len);
166 os_free(ekey);
167
168 /* This header is needed here for HMAC-MD5, but it will be regenerated
169 * in ieee802_1x_send() */
170 hdr->version = hapd->conf->eapol_version;
171 hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
172 hdr->length = host_to_be16(len);
173 hmac_md5(sm->eap_if->eapKeyData + 32, 32, buf, sizeof(*hdr) + len,
174 key->key_signature);
175
176 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key to " MACSTR
177 " (%s index=%d)", MAC2STR(sm->addr),
178 broadcast ? "broadcast" : "unicast", idx);
179 ieee802_1x_send(hapd, sta, IEEE802_1X_TYPE_EAPOL_KEY, (u8 *) key, len);
180 if (sta->eapol_sm)
181 sta->eapol_sm->dot1xAuthEapolFramesTx++;
182 os_free(buf);
183 }
184
185
186 #ifndef CONFIG_NO_VLAN
187 static struct hostapd_wep_keys *
ieee802_1x_group_alloc(struct hostapd_data * hapd,const char * ifname)188 ieee802_1x_group_alloc(struct hostapd_data *hapd, const char *ifname)
189 {
190 struct hostapd_wep_keys *key;
191
192 key = os_zalloc(sizeof(*key));
193 if (key == NULL)
194 return NULL;
195
196 key->default_len = hapd->conf->default_wep_key_len;
197
198 if (key->idx >= hapd->conf->broadcast_key_idx_max ||
199 key->idx < hapd->conf->broadcast_key_idx_min)
200 key->idx = hapd->conf->broadcast_key_idx_min;
201 else
202 key->idx++;
203
204 if (!key->key[key->idx])
205 key->key[key->idx] = os_malloc(key->default_len);
206 if (key->key[key->idx] == NULL ||
207 random_get_bytes(key->key[key->idx], key->default_len)) {
208 printf("Could not generate random WEP key (dynamic VLAN).\n");
209 os_free(key->key[key->idx]);
210 key->key[key->idx] = NULL;
211 os_free(key);
212 return NULL;
213 }
214 key->len[key->idx] = key->default_len;
215
216 wpa_printf(MSG_DEBUG, "%s: Default WEP idx %d for dynamic VLAN\n",
217 ifname, key->idx);
218 wpa_hexdump_key(MSG_DEBUG, "Default WEP key (dynamic VLAN)",
219 key->key[key->idx], key->len[key->idx]);
220
221 if (hostapd_drv_set_key(ifname, hapd, WPA_ALG_WEP,
222 broadcast_ether_addr, key->idx, 1,
223 NULL, 0, key->key[key->idx],
224 key->len[key->idx]))
225 printf("Could not set dynamic VLAN WEP encryption key.\n");
226
227 hostapd_set_drv_ieee8021x(hapd, ifname, 1);
228
229 return key;
230 }
231
232
233 static struct hostapd_wep_keys *
ieee802_1x_get_group(struct hostapd_data * hapd,struct hostapd_ssid * ssid,size_t vlan_id)234 ieee802_1x_get_group(struct hostapd_data *hapd, struct hostapd_ssid *ssid,
235 size_t vlan_id)
236 {
237 const char *ifname;
238
239 if (vlan_id == 0)
240 return &ssid->wep;
241
242 if (vlan_id <= ssid->max_dyn_vlan_keys && ssid->dyn_vlan_keys &&
243 ssid->dyn_vlan_keys[vlan_id])
244 return ssid->dyn_vlan_keys[vlan_id];
245
246 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Creating new group "
247 "state machine for VLAN ID %lu",
248 (unsigned long) vlan_id);
249
250 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
251 if (ifname == NULL) {
252 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Unknown VLAN ID %lu - "
253 "cannot create group key state machine",
254 (unsigned long) vlan_id);
255 return NULL;
256 }
257
258 if (ssid->dyn_vlan_keys == NULL) {
259 int size = (vlan_id + 1) * sizeof(ssid->dyn_vlan_keys[0]);
260 ssid->dyn_vlan_keys = os_zalloc(size);
261 if (ssid->dyn_vlan_keys == NULL)
262 return NULL;
263 ssid->max_dyn_vlan_keys = vlan_id;
264 }
265
266 if (ssid->max_dyn_vlan_keys < vlan_id) {
267 struct hostapd_wep_keys **na;
268 int size = (vlan_id + 1) * sizeof(ssid->dyn_vlan_keys[0]);
269 na = os_realloc(ssid->dyn_vlan_keys, size);
270 if (na == NULL)
271 return NULL;
272 ssid->dyn_vlan_keys = na;
273 os_memset(&ssid->dyn_vlan_keys[ssid->max_dyn_vlan_keys + 1], 0,
274 (vlan_id - ssid->max_dyn_vlan_keys) *
275 sizeof(ssid->dyn_vlan_keys[0]));
276 ssid->max_dyn_vlan_keys = vlan_id;
277 }
278
279 ssid->dyn_vlan_keys[vlan_id] = ieee802_1x_group_alloc(hapd, ifname);
280
281 return ssid->dyn_vlan_keys[vlan_id];
282 }
283 #endif /* CONFIG_NO_VLAN */
284
285
ieee802_1x_tx_key(struct hostapd_data * hapd,struct sta_info * sta)286 void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta)
287 {
288 struct eapol_authenticator *eapol = hapd->eapol_auth;
289 struct eapol_state_machine *sm = sta->eapol_sm;
290 #ifndef CONFIG_NO_VLAN
291 struct hostapd_wep_keys *key = NULL;
292 int vlan_id;
293 #endif /* CONFIG_NO_VLAN */
294
295 if (sm == NULL || !sm->eap_if->eapKeyData)
296 return;
297
298 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key(s) to " MACSTR,
299 MAC2STR(sta->addr));
300
301 #ifndef CONFIG_NO_VLAN
302 vlan_id = sta->vlan_id;
303 if (vlan_id < 0 || vlan_id > MAX_VLAN_ID)
304 vlan_id = 0;
305
306 if (vlan_id) {
307 key = ieee802_1x_get_group(hapd, sta->ssid, vlan_id);
308 if (key && key->key[key->idx])
309 ieee802_1x_tx_key_one(hapd, sta, key->idx, 1,
310 key->key[key->idx],
311 key->len[key->idx]);
312 } else
313 #endif /* CONFIG_NO_VLAN */
314 if (eapol->default_wep_key) {
315 ieee802_1x_tx_key_one(hapd, sta, eapol->default_wep_key_idx, 1,
316 eapol->default_wep_key,
317 hapd->conf->default_wep_key_len);
318 }
319
320 if (hapd->conf->individual_wep_key_len > 0) {
321 u8 *ikey;
322 ikey = os_malloc(hapd->conf->individual_wep_key_len);
323 if (ikey == NULL ||
324 random_get_bytes(ikey, hapd->conf->individual_wep_key_len))
325 {
326 wpa_printf(MSG_ERROR, "Could not generate random "
327 "individual WEP key.");
328 os_free(ikey);
329 return;
330 }
331
332 wpa_hexdump_key(MSG_DEBUG, "Individual WEP key",
333 ikey, hapd->conf->individual_wep_key_len);
334
335 ieee802_1x_tx_key_one(hapd, sta, 0, 0, ikey,
336 hapd->conf->individual_wep_key_len);
337
338 /* TODO: set encryption in TX callback, i.e., only after STA
339 * has ACKed EAPOL-Key frame */
340 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
341 sta->addr, 0, 1, NULL, 0, ikey,
342 hapd->conf->individual_wep_key_len)) {
343 wpa_printf(MSG_ERROR, "Could not set individual WEP "
344 "encryption.");
345 }
346
347 os_free(ikey);
348 }
349 }
350
351
radius_mode_txt(struct hostapd_data * hapd)352 const char *radius_mode_txt(struct hostapd_data *hapd)
353 {
354 switch (hapd->iface->conf->hw_mode) {
355 case HOSTAPD_MODE_IEEE80211A:
356 return "802.11a";
357 case HOSTAPD_MODE_IEEE80211G:
358 return "802.11g";
359 case HOSTAPD_MODE_IEEE80211B:
360 default:
361 return "802.11b";
362 }
363 }
364
365
radius_sta_rate(struct hostapd_data * hapd,struct sta_info * sta)366 int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta)
367 {
368 int i;
369 u8 rate = 0;
370
371 for (i = 0; i < sta->supported_rates_len; i++)
372 if ((sta->supported_rates[i] & 0x7f) > rate)
373 rate = sta->supported_rates[i] & 0x7f;
374
375 return rate;
376 }
377
378
379 #ifndef CONFIG_NO_RADIUS
ieee802_1x_learn_identity(struct hostapd_data * hapd,struct eapol_state_machine * sm,const u8 * eap,size_t len)380 static void ieee802_1x_learn_identity(struct hostapd_data *hapd,
381 struct eapol_state_machine *sm,
382 const u8 *eap, size_t len)
383 {
384 const u8 *identity;
385 size_t identity_len;
386
387 if (len <= sizeof(struct eap_hdr) ||
388 eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY)
389 return;
390
391 identity = eap_get_identity(sm->eap, &identity_len);
392 if (identity == NULL)
393 return;
394
395 /* Save station identity for future RADIUS packets */
396 os_free(sm->identity);
397 sm->identity = os_malloc(identity_len + 1);
398 if (sm->identity == NULL) {
399 sm->identity_len = 0;
400 return;
401 }
402
403 os_memcpy(sm->identity, identity, identity_len);
404 sm->identity_len = identity_len;
405 sm->identity[identity_len] = '\0';
406 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
407 HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity);
408 sm->dot1xAuthEapolRespIdFramesRx++;
409 }
410
411
add_common_radius_sta_attr(struct hostapd_data * hapd,struct hostapd_radius_attr * req_attr,struct sta_info * sta,struct radius_msg * msg)412 static int add_common_radius_sta_attr(struct hostapd_data *hapd,
413 struct hostapd_radius_attr *req_attr,
414 struct sta_info *sta,
415 struct radius_msg *msg)
416 {
417 char buf[128];
418
419 if (!hostapd_config_get_radius_attr(req_attr,
420 RADIUS_ATTR_NAS_PORT) &&
421 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
422 wpa_printf(MSG_ERROR, "Could not add NAS-Port");
423 return -1;
424 }
425
426 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
427 MAC2STR(sta->addr));
428 buf[sizeof(buf) - 1] = '\0';
429 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
430 (u8 *) buf, os_strlen(buf))) {
431 wpa_printf(MSG_ERROR, "Could not add Calling-Station-Id");
432 return -1;
433 }
434
435 if (sta->flags & WLAN_STA_PREAUTH) {
436 os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
437 sizeof(buf));
438 } else {
439 os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
440 radius_sta_rate(hapd, sta) / 2,
441 (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
442 radius_mode_txt(hapd));
443 buf[sizeof(buf) - 1] = '\0';
444 }
445 if (!hostapd_config_get_radius_attr(req_attr,
446 RADIUS_ATTR_CONNECT_INFO) &&
447 !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
448 (u8 *) buf, os_strlen(buf))) {
449 wpa_printf(MSG_ERROR, "Could not add Connect-Info");
450 return -1;
451 }
452
453 return 0;
454 }
455
456
add_common_radius_attr(struct hostapd_data * hapd,struct hostapd_radius_attr * req_attr,struct sta_info * sta,struct radius_msg * msg)457 int add_common_radius_attr(struct hostapd_data *hapd,
458 struct hostapd_radius_attr *req_attr,
459 struct sta_info *sta,
460 struct radius_msg *msg)
461 {
462 char buf[128];
463 struct hostapd_radius_attr *attr;
464
465 if (!hostapd_config_get_radius_attr(req_attr,
466 RADIUS_ATTR_NAS_IP_ADDRESS) &&
467 hapd->conf->own_ip_addr.af == AF_INET &&
468 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
469 (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
470 wpa_printf(MSG_ERROR, "Could not add NAS-IP-Address");
471 return -1;
472 }
473
474 #ifdef CONFIG_IPV6
475 if (!hostapd_config_get_radius_attr(req_attr,
476 RADIUS_ATTR_NAS_IPV6_ADDRESS) &&
477 hapd->conf->own_ip_addr.af == AF_INET6 &&
478 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
479 (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
480 wpa_printf(MSG_ERROR, "Could not add NAS-IPv6-Address");
481 return -1;
482 }
483 #endif /* CONFIG_IPV6 */
484
485 if (!hostapd_config_get_radius_attr(req_attr,
486 RADIUS_ATTR_NAS_IDENTIFIER) &&
487 hapd->conf->nas_identifier &&
488 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
489 (u8 *) hapd->conf->nas_identifier,
490 os_strlen(hapd->conf->nas_identifier))) {
491 wpa_printf(MSG_ERROR, "Could not add NAS-Identifier");
492 return -1;
493 }
494
495 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":%s",
496 MAC2STR(hapd->own_addr),
497 wpa_ssid_txt(hapd->conf->ssid.ssid,
498 hapd->conf->ssid.ssid_len));
499 buf[sizeof(buf) - 1] = '\0';
500 if (!hostapd_config_get_radius_attr(req_attr,
501 RADIUS_ATTR_CALLED_STATION_ID) &&
502 !radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
503 (u8 *) buf, os_strlen(buf))) {
504 wpa_printf(MSG_ERROR, "Could not add Called-Station-Id");
505 return -1;
506 }
507
508 if (!hostapd_config_get_radius_attr(req_attr,
509 RADIUS_ATTR_NAS_PORT_TYPE) &&
510 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
511 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
512 wpa_printf(MSG_ERROR, "Could not add NAS-Port-Type");
513 return -1;
514 }
515
516 if (sta && add_common_radius_sta_attr(hapd, req_attr, sta, msg) < 0)
517 return -1;
518
519 for (attr = req_attr; attr; attr = attr->next) {
520 if (!radius_msg_add_attr(msg, attr->type,
521 wpabuf_head(attr->val),
522 wpabuf_len(attr->val))) {
523 wpa_printf(MSG_ERROR, "Could not add RADIUS "
524 "attribute");
525 return -1;
526 }
527 }
528
529 return 0;
530 }
531
532
ieee802_1x_encapsulate_radius(struct hostapd_data * hapd,struct sta_info * sta,const u8 * eap,size_t len)533 static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
534 struct sta_info *sta,
535 const u8 *eap, size_t len)
536 {
537 struct radius_msg *msg;
538 struct eapol_state_machine *sm = sta->eapol_sm;
539
540 if (sm == NULL)
541 return;
542
543 ieee802_1x_learn_identity(hapd, sm, eap, len);
544
545 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
546 "packet");
547
548 sm->radius_identifier = radius_client_get_id(hapd->radius);
549 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
550 sm->radius_identifier);
551 if (msg == NULL) {
552 printf("Could not create net RADIUS packet\n");
553 return;
554 }
555
556 radius_msg_make_authenticator(msg, (u8 *) sta, sizeof(*sta));
557
558 if (sm->identity &&
559 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
560 sm->identity, sm->identity_len)) {
561 printf("Could not add User-Name\n");
562 goto fail;
563 }
564
565 if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr, sta,
566 msg) < 0)
567 goto fail;
568
569 /* TODO: should probably check MTU from driver config; 2304 is max for
570 * IEEE 802.11, but use 1400 to avoid problems with too large packets
571 */
572 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
573 RADIUS_ATTR_FRAMED_MTU) &&
574 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
575 printf("Could not add Framed-MTU\n");
576 goto fail;
577 }
578
579 if (eap && !radius_msg_add_eap(msg, eap, len)) {
580 printf("Could not add EAP-Message\n");
581 goto fail;
582 }
583
584 /* State attribute must be copied if and only if this packet is
585 * Access-Request reply to the previous Access-Challenge */
586 if (sm->last_recv_radius &&
587 radius_msg_get_hdr(sm->last_recv_radius)->code ==
588 RADIUS_CODE_ACCESS_CHALLENGE) {
589 int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
590 RADIUS_ATTR_STATE);
591 if (res < 0) {
592 printf("Could not copy State attribute from previous "
593 "Access-Challenge\n");
594 goto fail;
595 }
596 if (res > 0) {
597 wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
598 }
599 }
600
601 if (hapd->conf->radius_request_cui) {
602 const u8 *cui;
603 size_t cui_len;
604 /* Add previously learned CUI or nul CUI to request CUI */
605 if (sm->radius_cui) {
606 cui = wpabuf_head(sm->radius_cui);
607 cui_len = wpabuf_len(sm->radius_cui);
608 } else {
609 cui = (const u8 *) "\0";
610 cui_len = 1;
611 }
612 if (!radius_msg_add_attr(msg,
613 RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
614 cui, cui_len)) {
615 wpa_printf(MSG_ERROR, "Could not add CUI");
616 goto fail;
617 }
618 }
619
620 if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0)
621 goto fail;
622
623 return;
624
625 fail:
626 radius_msg_free(msg);
627 }
628 #endif /* CONFIG_NO_RADIUS */
629
630
handle_eap_response(struct hostapd_data * hapd,struct sta_info * sta,struct eap_hdr * eap,size_t len)631 static void handle_eap_response(struct hostapd_data *hapd,
632 struct sta_info *sta, struct eap_hdr *eap,
633 size_t len)
634 {
635 u8 type, *data;
636 struct eapol_state_machine *sm = sta->eapol_sm;
637 if (sm == NULL)
638 return;
639
640 data = (u8 *) (eap + 1);
641
642 if (len < sizeof(*eap) + 1) {
643 printf("handle_eap_response: too short response data\n");
644 return;
645 }
646
647 sm->eap_type_supp = type = data[0];
648
649 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
650 HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
651 "id=%d len=%d) from STA: EAP Response-%s (%d)",
652 eap->code, eap->identifier, be_to_host16(eap->length),
653 eap_server_get_name(0, type), type);
654
655 sm->dot1xAuthEapolRespFramesRx++;
656
657 wpabuf_free(sm->eap_if->eapRespData);
658 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
659 sm->eapolEap = TRUE;
660 }
661
662
663 /* Process incoming EAP packet from Supplicant */
handle_eap(struct hostapd_data * hapd,struct sta_info * sta,u8 * buf,size_t len)664 static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
665 u8 *buf, size_t len)
666 {
667 struct eap_hdr *eap;
668 u16 eap_len;
669
670 if (len < sizeof(*eap)) {
671 printf(" too short EAP packet\n");
672 return;
673 }
674
675 eap = (struct eap_hdr *) buf;
676
677 eap_len = be_to_host16(eap->length);
678 wpa_printf(MSG_DEBUG, "EAP: code=%d identifier=%d length=%d",
679 eap->code, eap->identifier, eap_len);
680 if (eap_len < sizeof(*eap)) {
681 wpa_printf(MSG_DEBUG, " Invalid EAP length");
682 return;
683 } else if (eap_len > len) {
684 wpa_printf(MSG_DEBUG, " Too short frame to contain this EAP "
685 "packet");
686 return;
687 } else if (eap_len < len) {
688 wpa_printf(MSG_DEBUG, " Ignoring %lu extra bytes after EAP "
689 "packet", (unsigned long) len - eap_len);
690 }
691
692 switch (eap->code) {
693 case EAP_CODE_REQUEST:
694 wpa_printf(MSG_DEBUG, " (request)");
695 return;
696 case EAP_CODE_RESPONSE:
697 wpa_printf(MSG_DEBUG, " (response)");
698 handle_eap_response(hapd, sta, eap, eap_len);
699 break;
700 case EAP_CODE_SUCCESS:
701 wpa_printf(MSG_DEBUG, " (success)");
702 return;
703 case EAP_CODE_FAILURE:
704 wpa_printf(MSG_DEBUG, " (failure)");
705 return;
706 default:
707 wpa_printf(MSG_DEBUG, " (unknown code)");
708 return;
709 }
710 }
711
712
713 static struct eapol_state_machine *
ieee802_1x_alloc_eapol_sm(struct hostapd_data * hapd,struct sta_info * sta)714 ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
715 {
716 int flags = 0;
717 if (sta->flags & WLAN_STA_PREAUTH)
718 flags |= EAPOL_SM_PREAUTH;
719 if (sta->wpa_sm) {
720 flags |= EAPOL_SM_USES_WPA;
721 if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
722 flags |= EAPOL_SM_FROM_PMKSA_CACHE;
723 }
724 return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
725 sta->wps_ie, sta->p2p_ie, sta,
726 sta->identity, sta->radius_cui);
727 }
728
729
730 /**
731 * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
732 * @hapd: hostapd BSS data
733 * @sa: Source address (sender of the EAPOL frame)
734 * @buf: EAPOL frame
735 * @len: Length of buf in octets
736 *
737 * This function is called for each incoming EAPOL frame from the interface
738 */
ieee802_1x_receive(struct hostapd_data * hapd,const u8 * sa,const u8 * buf,size_t len)739 void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
740 size_t len)
741 {
742 struct sta_info *sta;
743 struct ieee802_1x_hdr *hdr;
744 struct ieee802_1x_eapol_key *key;
745 u16 datalen;
746 struct rsn_pmksa_cache_entry *pmksa;
747 int key_mgmt;
748
749 if (!hapd->conf->ieee802_1x && !hapd->conf->wpa &&
750 !hapd->conf->wps_state)
751 return;
752
753 wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
754 (unsigned long) len, MAC2STR(sa));
755 sta = ap_get_sta(hapd, sa);
756 if (!sta || (!(sta->flags & (WLAN_STA_ASSOC | WLAN_STA_PREAUTH)) &&
757 !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
758 wpa_printf(MSG_DEBUG, "IEEE 802.1X data frame from not "
759 "associated/Pre-authenticating STA");
760 return;
761 }
762
763 if (len < sizeof(*hdr)) {
764 printf(" too short IEEE 802.1X packet\n");
765 return;
766 }
767
768 hdr = (struct ieee802_1x_hdr *) buf;
769 datalen = be_to_host16(hdr->length);
770 wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
771 hdr->version, hdr->type, datalen);
772
773 if (len - sizeof(*hdr) < datalen) {
774 printf(" frame too short for this IEEE 802.1X packet\n");
775 if (sta->eapol_sm)
776 sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
777 return;
778 }
779 if (len - sizeof(*hdr) > datalen) {
780 wpa_printf(MSG_DEBUG, " ignoring %lu extra octets after "
781 "IEEE 802.1X packet",
782 (unsigned long) len - sizeof(*hdr) - datalen);
783 }
784
785 if (sta->eapol_sm) {
786 sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
787 sta->eapol_sm->dot1xAuthEapolFramesRx++;
788 }
789
790 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
791 if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
792 hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
793 (key->type == EAPOL_KEY_TYPE_WPA ||
794 key->type == EAPOL_KEY_TYPE_RSN)) {
795 wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
796 sizeof(*hdr) + datalen);
797 return;
798 }
799
800 if (!hapd->conf->ieee802_1x &&
801 !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
802 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
803 "802.1X not enabled and WPS not used");
804 return;
805 }
806
807 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
808 if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
809 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
810 "STA is using PSK");
811 return;
812 }
813
814 if (!sta->eapol_sm) {
815 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
816 if (!sta->eapol_sm)
817 return;
818
819 #ifdef CONFIG_WPS
820 if (!hapd->conf->ieee802_1x) {
821 u32 wflags = sta->flags & (WLAN_STA_WPS |
822 WLAN_STA_WPS2 |
823 WLAN_STA_MAYBE_WPS);
824 if (wflags == WLAN_STA_MAYBE_WPS ||
825 wflags == (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) {
826 /*
827 * Delay EAPOL frame transmission until a
828 * possible WPS STA initiates the handshake
829 * with EAPOL-Start. Only allow the wait to be
830 * skipped if the STA is known to support WPS
831 * 2.0.
832 */
833 wpa_printf(MSG_DEBUG, "WPS: Do not start "
834 "EAPOL until EAPOL-Start is "
835 "received");
836 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
837 }
838 }
839 #endif /* CONFIG_WPS */
840
841 sta->eapol_sm->eap_if->portEnabled = TRUE;
842 }
843
844 /* since we support version 1, we can ignore version field and proceed
845 * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
846 /* TODO: actually, we are not version 1 anymore.. However, Version 2
847 * does not change frame contents, so should be ok to process frames
848 * more or less identically. Some changes might be needed for
849 * verification of fields. */
850
851 switch (hdr->type) {
852 case IEEE802_1X_TYPE_EAP_PACKET:
853 handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
854 break;
855
856 case IEEE802_1X_TYPE_EAPOL_START:
857 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
858 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Start "
859 "from STA");
860 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
861 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
862 if (pmksa) {
863 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
864 HOSTAPD_LEVEL_DEBUG, "cached PMKSA "
865 "available - ignore it since "
866 "STA sent EAPOL-Start");
867 wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
868 }
869 sta->eapol_sm->eapolStart = TRUE;
870 sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
871 eap_server_clear_identity(sta->eapol_sm->eap);
872 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
873 break;
874
875 case IEEE802_1X_TYPE_EAPOL_LOGOFF:
876 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
877 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Logoff "
878 "from STA");
879 sta->acct_terminate_cause =
880 RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
881 accounting_sta_stop(hapd, sta);
882 sta->eapol_sm->eapolLogoff = TRUE;
883 sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
884 eap_server_clear_identity(sta->eapol_sm->eap);
885 break;
886
887 case IEEE802_1X_TYPE_EAPOL_KEY:
888 wpa_printf(MSG_DEBUG, " EAPOL-Key");
889 if (!ap_sta_is_authorized(sta)) {
890 wpa_printf(MSG_DEBUG, " Dropped key data from "
891 "unauthorized Supplicant");
892 break;
893 }
894 break;
895
896 case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
897 wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
898 /* TODO: implement support for this; show data */
899 break;
900
901 default:
902 wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
903 sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
904 break;
905 }
906
907 eapol_auth_step(sta->eapol_sm);
908 }
909
910
911 /**
912 * ieee802_1x_new_station - Start IEEE 802.1X authentication
913 * @hapd: hostapd BSS data
914 * @sta: The station
915 *
916 * This function is called to start IEEE 802.1X authentication when a new
917 * station completes IEEE 802.11 association.
918 */
ieee802_1x_new_station(struct hostapd_data * hapd,struct sta_info * sta)919 void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
920 {
921 struct rsn_pmksa_cache_entry *pmksa;
922 int reassoc = 1;
923 int force_1x = 0;
924 int key_mgmt;
925
926 #ifdef CONFIG_WPS
927 if (hapd->conf->wps_state && hapd->conf->wpa &&
928 (sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
929 /*
930 * Need to enable IEEE 802.1X/EAPOL state machines for possible
931 * WPS handshake even if IEEE 802.1X/EAPOL is not used for
932 * authentication in this BSS.
933 */
934 force_1x = 1;
935 }
936 #endif /* CONFIG_WPS */
937
938 if (!force_1x && !hapd->conf->ieee802_1x) {
939 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - "
940 "802.1X not enabled or forced for WPS");
941 /*
942 * Clear any possible EAPOL authenticator state to support
943 * reassociation change from WPS to PSK.
944 */
945 ieee802_1x_free_station(sta);
946 return;
947 }
948
949 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
950 if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
951 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - using PSK");
952 /*
953 * Clear any possible EAPOL authenticator state to support
954 * reassociation change from WPA-EAP to PSK.
955 */
956 ieee802_1x_free_station(sta);
957 return;
958 }
959
960 if (sta->eapol_sm == NULL) {
961 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
962 HOSTAPD_LEVEL_DEBUG, "start authentication");
963 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
964 if (sta->eapol_sm == NULL) {
965 hostapd_logger(hapd, sta->addr,
966 HOSTAPD_MODULE_IEEE8021X,
967 HOSTAPD_LEVEL_INFO,
968 "failed to allocate state machine");
969 return;
970 }
971 reassoc = 0;
972 }
973
974 #ifdef CONFIG_WPS
975 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
976 if (!hapd->conf->ieee802_1x && !(sta->flags & WLAN_STA_WPS2)) {
977 /*
978 * Delay EAPOL frame transmission until a possible WPS STA
979 * initiates the handshake with EAPOL-Start. Only allow the
980 * wait to be skipped if the STA is known to support WPS 2.0.
981 */
982 wpa_printf(MSG_DEBUG, "WPS: Do not start EAPOL until "
983 "EAPOL-Start is received");
984 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
985 }
986 #endif /* CONFIG_WPS */
987
988 sta->eapol_sm->eap_if->portEnabled = TRUE;
989
990 #ifdef CONFIG_IEEE80211R
991 if (sta->auth_alg == WLAN_AUTH_FT) {
992 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
993 HOSTAPD_LEVEL_DEBUG,
994 "PMK from FT - skip IEEE 802.1X/EAP");
995 /* Setup EAPOL state machines to already authenticated state
996 * because of existing FT information from R0KH. */
997 sta->eapol_sm->keyRun = TRUE;
998 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
999 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1000 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1001 sta->eapol_sm->authSuccess = TRUE;
1002 sta->eapol_sm->authFail = FALSE;
1003 if (sta->eapol_sm->eap)
1004 eap_sm_notify_cached(sta->eapol_sm->eap);
1005 /* TODO: get vlan_id from R0KH using RRB message */
1006 return;
1007 }
1008 #endif /* CONFIG_IEEE80211R */
1009
1010 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1011 if (pmksa) {
1012 int old_vlanid;
1013
1014 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1015 HOSTAPD_LEVEL_DEBUG,
1016 "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
1017 /* Setup EAPOL state machines to already authenticated state
1018 * because of existing PMKSA information in the cache. */
1019 sta->eapol_sm->keyRun = TRUE;
1020 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1021 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1022 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1023 sta->eapol_sm->authSuccess = TRUE;
1024 sta->eapol_sm->authFail = FALSE;
1025 if (sta->eapol_sm->eap)
1026 eap_sm_notify_cached(sta->eapol_sm->eap);
1027 old_vlanid = sta->vlan_id;
1028 pmksa_cache_to_eapol_data(pmksa, sta->eapol_sm);
1029 if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
1030 sta->vlan_id = 0;
1031 ap_sta_bind_vlan(hapd, sta, old_vlanid);
1032 } else {
1033 if (reassoc) {
1034 /*
1035 * Force EAPOL state machines to start
1036 * re-authentication without having to wait for the
1037 * Supplicant to send EAPOL-Start.
1038 */
1039 sta->eapol_sm->reAuthenticate = TRUE;
1040 }
1041 eapol_auth_step(sta->eapol_sm);
1042 }
1043 }
1044
1045
ieee802_1x_free_station(struct sta_info * sta)1046 void ieee802_1x_free_station(struct sta_info *sta)
1047 {
1048 struct eapol_state_machine *sm = sta->eapol_sm;
1049
1050 if (sm == NULL)
1051 return;
1052
1053 sta->eapol_sm = NULL;
1054
1055 #ifndef CONFIG_NO_RADIUS
1056 radius_msg_free(sm->last_recv_radius);
1057 radius_free_class(&sm->radius_class);
1058 wpabuf_free(sm->radius_cui);
1059 #endif /* CONFIG_NO_RADIUS */
1060
1061 os_free(sm->identity);
1062 eapol_auth_free(sm);
1063 }
1064
1065
1066 #ifndef CONFIG_NO_RADIUS
ieee802_1x_decapsulate_radius(struct hostapd_data * hapd,struct sta_info * sta)1067 static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
1068 struct sta_info *sta)
1069 {
1070 struct wpabuf *eap;
1071 const struct eap_hdr *hdr;
1072 int eap_type = -1;
1073 char buf[64];
1074 struct radius_msg *msg;
1075 struct eapol_state_machine *sm = sta->eapol_sm;
1076
1077 if (sm == NULL || sm->last_recv_radius == NULL) {
1078 if (sm)
1079 sm->eap_if->aaaEapNoReq = TRUE;
1080 return;
1081 }
1082
1083 msg = sm->last_recv_radius;
1084
1085 eap = radius_msg_get_eap(msg);
1086 if (eap == NULL) {
1087 /* RFC 3579, Chap. 2.6.3:
1088 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
1089 * attribute */
1090 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1091 HOSTAPD_LEVEL_WARNING, "could not extract "
1092 "EAP-Message from RADIUS message");
1093 sm->eap_if->aaaEapNoReq = TRUE;
1094 return;
1095 }
1096
1097 if (wpabuf_len(eap) < sizeof(*hdr)) {
1098 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1099 HOSTAPD_LEVEL_WARNING, "too short EAP packet "
1100 "received from authentication server");
1101 wpabuf_free(eap);
1102 sm->eap_if->aaaEapNoReq = TRUE;
1103 return;
1104 }
1105
1106 if (wpabuf_len(eap) > sizeof(*hdr))
1107 eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)];
1108
1109 hdr = wpabuf_head(eap);
1110 switch (hdr->code) {
1111 case EAP_CODE_REQUEST:
1112 if (eap_type >= 0)
1113 sm->eap_type_authsrv = eap_type;
1114 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
1115 eap_type >= 0 ? eap_server_get_name(0, eap_type) :
1116 "??",
1117 eap_type);
1118 break;
1119 case EAP_CODE_RESPONSE:
1120 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
1121 eap_type >= 0 ? eap_server_get_name(0, eap_type) :
1122 "??",
1123 eap_type);
1124 break;
1125 case EAP_CODE_SUCCESS:
1126 os_strlcpy(buf, "EAP Success", sizeof(buf));
1127 break;
1128 case EAP_CODE_FAILURE:
1129 os_strlcpy(buf, "EAP Failure", sizeof(buf));
1130 break;
1131 default:
1132 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
1133 break;
1134 }
1135 buf[sizeof(buf) - 1] = '\0';
1136 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1137 HOSTAPD_LEVEL_DEBUG, "decapsulated EAP packet (code=%d "
1138 "id=%d len=%d) from RADIUS server: %s",
1139 hdr->code, hdr->identifier, be_to_host16(hdr->length),
1140 buf);
1141 sm->eap_if->aaaEapReq = TRUE;
1142
1143 wpabuf_free(sm->eap_if->aaaEapReqData);
1144 sm->eap_if->aaaEapReqData = eap;
1145 }
1146
1147
ieee802_1x_get_keys(struct hostapd_data * hapd,struct sta_info * sta,struct radius_msg * msg,struct radius_msg * req,const u8 * shared_secret,size_t shared_secret_len)1148 static void ieee802_1x_get_keys(struct hostapd_data *hapd,
1149 struct sta_info *sta, struct radius_msg *msg,
1150 struct radius_msg *req,
1151 const u8 *shared_secret,
1152 size_t shared_secret_len)
1153 {
1154 struct radius_ms_mppe_keys *keys;
1155 struct eapol_state_machine *sm = sta->eapol_sm;
1156 if (sm == NULL)
1157 return;
1158
1159 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
1160 shared_secret_len);
1161
1162 if (keys && keys->send && keys->recv) {
1163 size_t len = keys->send_len + keys->recv_len;
1164 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
1165 keys->send, keys->send_len);
1166 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
1167 keys->recv, keys->recv_len);
1168
1169 os_free(sm->eap_if->aaaEapKeyData);
1170 sm->eap_if->aaaEapKeyData = os_malloc(len);
1171 if (sm->eap_if->aaaEapKeyData) {
1172 os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
1173 keys->recv_len);
1174 os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
1175 keys->send, keys->send_len);
1176 sm->eap_if->aaaEapKeyDataLen = len;
1177 sm->eap_if->aaaEapKeyAvailable = TRUE;
1178 }
1179 }
1180
1181 if (keys) {
1182 os_free(keys->send);
1183 os_free(keys->recv);
1184 os_free(keys);
1185 }
1186 }
1187
1188
ieee802_1x_store_radius_class(struct hostapd_data * hapd,struct sta_info * sta,struct radius_msg * msg)1189 static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
1190 struct sta_info *sta,
1191 struct radius_msg *msg)
1192 {
1193 u8 *class;
1194 size_t class_len;
1195 struct eapol_state_machine *sm = sta->eapol_sm;
1196 int count, i;
1197 struct radius_attr_data *nclass;
1198 size_t nclass_count;
1199
1200 if (!hapd->conf->radius->acct_server || hapd->radius == NULL ||
1201 sm == NULL)
1202 return;
1203
1204 radius_free_class(&sm->radius_class);
1205 count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
1206 if (count <= 0)
1207 return;
1208
1209 nclass = os_calloc(count, sizeof(struct radius_attr_data));
1210 if (nclass == NULL)
1211 return;
1212
1213 nclass_count = 0;
1214
1215 class = NULL;
1216 for (i = 0; i < count; i++) {
1217 do {
1218 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
1219 &class, &class_len,
1220 class) < 0) {
1221 i = count;
1222 break;
1223 }
1224 } while (class_len < 1);
1225
1226 nclass[nclass_count].data = os_malloc(class_len);
1227 if (nclass[nclass_count].data == NULL)
1228 break;
1229
1230 os_memcpy(nclass[nclass_count].data, class, class_len);
1231 nclass[nclass_count].len = class_len;
1232 nclass_count++;
1233 }
1234
1235 sm->radius_class.attr = nclass;
1236 sm->radius_class.count = nclass_count;
1237 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Stored %lu RADIUS Class "
1238 "attributes for " MACSTR,
1239 (unsigned long) sm->radius_class.count,
1240 MAC2STR(sta->addr));
1241 }
1242
1243
1244 /* Update sta->identity based on User-Name attribute in Access-Accept */
ieee802_1x_update_sta_identity(struct hostapd_data * hapd,struct sta_info * sta,struct radius_msg * msg)1245 static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
1246 struct sta_info *sta,
1247 struct radius_msg *msg)
1248 {
1249 u8 *buf, *identity;
1250 size_t len;
1251 struct eapol_state_machine *sm = sta->eapol_sm;
1252
1253 if (sm == NULL)
1254 return;
1255
1256 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
1257 NULL) < 0)
1258 return;
1259
1260 identity = os_malloc(len + 1);
1261 if (identity == NULL)
1262 return;
1263
1264 os_memcpy(identity, buf, len);
1265 identity[len] = '\0';
1266
1267 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1268 HOSTAPD_LEVEL_DEBUG, "old identity '%s' updated with "
1269 "User-Name from Access-Accept '%s'",
1270 sm->identity ? (char *) sm->identity : "N/A",
1271 (char *) identity);
1272
1273 os_free(sm->identity);
1274 sm->identity = identity;
1275 sm->identity_len = len;
1276 }
1277
1278
1279 /* Update CUI based on Chargeable-User-Identity attribute in Access-Accept */
ieee802_1x_update_sta_cui(struct hostapd_data * hapd,struct sta_info * sta,struct radius_msg * msg)1280 static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd,
1281 struct sta_info *sta,
1282 struct radius_msg *msg)
1283 {
1284 struct eapol_state_machine *sm = sta->eapol_sm;
1285 struct wpabuf *cui;
1286 u8 *buf;
1287 size_t len;
1288
1289 if (sm == NULL)
1290 return;
1291
1292 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
1293 &buf, &len, NULL) < 0)
1294 return;
1295
1296 cui = wpabuf_alloc_copy(buf, len);
1297 if (cui == NULL)
1298 return;
1299
1300 wpabuf_free(sm->radius_cui);
1301 sm->radius_cui = cui;
1302 }
1303
1304
1305 struct sta_id_search {
1306 u8 identifier;
1307 struct eapol_state_machine *sm;
1308 };
1309
1310
ieee802_1x_select_radius_identifier(struct hostapd_data * hapd,struct sta_info * sta,void * ctx)1311 static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
1312 struct sta_info *sta,
1313 void *ctx)
1314 {
1315 struct sta_id_search *id_search = ctx;
1316 struct eapol_state_machine *sm = sta->eapol_sm;
1317
1318 if (sm && sm->radius_identifier >= 0 &&
1319 sm->radius_identifier == id_search->identifier) {
1320 id_search->sm = sm;
1321 return 1;
1322 }
1323 return 0;
1324 }
1325
1326
1327 static struct eapol_state_machine *
ieee802_1x_search_radius_identifier(struct hostapd_data * hapd,u8 identifier)1328 ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
1329 {
1330 struct sta_id_search id_search;
1331 id_search.identifier = identifier;
1332 id_search.sm = NULL;
1333 ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
1334 return id_search.sm;
1335 }
1336
1337
1338 /**
1339 * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
1340 * @msg: RADIUS response message
1341 * @req: RADIUS request message
1342 * @shared_secret: RADIUS shared secret
1343 * @shared_secret_len: Length of shared_secret in octets
1344 * @data: Context data (struct hostapd_data *)
1345 * Returns: Processing status
1346 */
1347 static RadiusRxResult
ieee802_1x_receive_auth(struct radius_msg * msg,struct radius_msg * req,const u8 * shared_secret,size_t shared_secret_len,void * data)1348 ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
1349 const u8 *shared_secret, size_t shared_secret_len,
1350 void *data)
1351 {
1352 struct hostapd_data *hapd = data;
1353 struct sta_info *sta;
1354 u32 session_timeout = 0, termination_action, acct_interim_interval;
1355 int session_timeout_set, old_vlanid = 0;
1356 struct eapol_state_machine *sm;
1357 int override_eapReq = 0;
1358 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
1359
1360 sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
1361 if (sm == NULL) {
1362 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Could not find matching "
1363 "station for this RADIUS message");
1364 return RADIUS_RX_UNKNOWN;
1365 }
1366 sta = sm->sta;
1367
1368 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
1369 * present when packet contains an EAP-Message attribute */
1370 if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
1371 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
1372 0) < 0 &&
1373 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
1374 wpa_printf(MSG_DEBUG, "Allowing RADIUS Access-Reject without "
1375 "Message-Authenticator since it does not include "
1376 "EAP-Message");
1377 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
1378 req, 1)) {
1379 printf("Incoming RADIUS packet did not have correct "
1380 "Message-Authenticator - dropped\n");
1381 return RADIUS_RX_INVALID_AUTHENTICATOR;
1382 }
1383
1384 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
1385 hdr->code != RADIUS_CODE_ACCESS_REJECT &&
1386 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
1387 printf("Unknown RADIUS message code\n");
1388 return RADIUS_RX_UNKNOWN;
1389 }
1390
1391 sm->radius_identifier = -1;
1392 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
1393 MAC2STR(sta->addr));
1394
1395 radius_msg_free(sm->last_recv_radius);
1396 sm->last_recv_radius = msg;
1397
1398 session_timeout_set =
1399 !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
1400 &session_timeout);
1401 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
1402 &termination_action))
1403 termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
1404
1405 if (hapd->conf->acct_interim_interval == 0 &&
1406 hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
1407 radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
1408 &acct_interim_interval) == 0) {
1409 if (acct_interim_interval < 60) {
1410 hostapd_logger(hapd, sta->addr,
1411 HOSTAPD_MODULE_IEEE8021X,
1412 HOSTAPD_LEVEL_INFO,
1413 "ignored too small "
1414 "Acct-Interim-Interval %d",
1415 acct_interim_interval);
1416 } else
1417 sta->acct_interim_interval = acct_interim_interval;
1418 }
1419
1420
1421 switch (hdr->code) {
1422 case RADIUS_CODE_ACCESS_ACCEPT:
1423 if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
1424 sta->vlan_id = 0;
1425 #ifndef CONFIG_NO_VLAN
1426 else {
1427 old_vlanid = sta->vlan_id;
1428 sta->vlan_id = radius_msg_get_vlanid(msg);
1429 }
1430 if (sta->vlan_id > 0 &&
1431 hostapd_get_vlan_id_ifname(hapd->conf->vlan,
1432 sta->vlan_id)) {
1433 hostapd_logger(hapd, sta->addr,
1434 HOSTAPD_MODULE_RADIUS,
1435 HOSTAPD_LEVEL_INFO,
1436 "VLAN ID %d", sta->vlan_id);
1437 } else if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_REQUIRED) {
1438 sta->eapol_sm->authFail = TRUE;
1439 hostapd_logger(hapd, sta->addr,
1440 HOSTAPD_MODULE_IEEE8021X,
1441 HOSTAPD_LEVEL_INFO, "authentication "
1442 "server did not include required VLAN "
1443 "ID in Access-Accept");
1444 break;
1445 }
1446 #endif /* CONFIG_NO_VLAN */
1447
1448 if (ap_sta_bind_vlan(hapd, sta, old_vlanid) < 0)
1449 break;
1450
1451 /* RFC 3580, Ch. 3.17 */
1452 if (session_timeout_set && termination_action ==
1453 RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) {
1454 sm->reAuthPeriod = session_timeout;
1455 } else if (session_timeout_set)
1456 ap_sta_session_timeout(hapd, sta, session_timeout);
1457
1458 sm->eap_if->aaaSuccess = TRUE;
1459 override_eapReq = 1;
1460 ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
1461 shared_secret_len);
1462 ieee802_1x_store_radius_class(hapd, sta, msg);
1463 ieee802_1x_update_sta_identity(hapd, sta, msg);
1464 ieee802_1x_update_sta_cui(hapd, sta, msg);
1465 if (sm->eap_if->eapKeyAvailable &&
1466 wpa_auth_pmksa_add(sta->wpa_sm, sm->eapol_key_crypt,
1467 session_timeout_set ?
1468 (int) session_timeout : -1, sm) == 0) {
1469 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
1470 HOSTAPD_LEVEL_DEBUG,
1471 "Added PMKSA cache entry");
1472 }
1473 break;
1474 case RADIUS_CODE_ACCESS_REJECT:
1475 sm->eap_if->aaaFail = TRUE;
1476 override_eapReq = 1;
1477 break;
1478 case RADIUS_CODE_ACCESS_CHALLENGE:
1479 sm->eap_if->aaaEapReq = TRUE;
1480 if (session_timeout_set) {
1481 /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
1482 sm->eap_if->aaaMethodTimeout = session_timeout;
1483 hostapd_logger(hapd, sm->addr,
1484 HOSTAPD_MODULE_IEEE8021X,
1485 HOSTAPD_LEVEL_DEBUG,
1486 "using EAP timeout of %d seconds (from "
1487 "RADIUS)",
1488 sm->eap_if->aaaMethodTimeout);
1489 } else {
1490 /*
1491 * Use dynamic retransmission behavior per EAP
1492 * specification.
1493 */
1494 sm->eap_if->aaaMethodTimeout = 0;
1495 }
1496 break;
1497 }
1498
1499 ieee802_1x_decapsulate_radius(hapd, sta);
1500 if (override_eapReq)
1501 sm->eap_if->aaaEapReq = FALSE;
1502
1503 eapol_auth_step(sm);
1504
1505 return RADIUS_RX_QUEUED;
1506 }
1507 #endif /* CONFIG_NO_RADIUS */
1508
1509
ieee802_1x_abort_auth(struct hostapd_data * hapd,struct sta_info * sta)1510 void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
1511 {
1512 struct eapol_state_machine *sm = sta->eapol_sm;
1513 if (sm == NULL)
1514 return;
1515
1516 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1517 HOSTAPD_LEVEL_DEBUG, "aborting authentication");
1518
1519 #ifndef CONFIG_NO_RADIUS
1520 radius_msg_free(sm->last_recv_radius);
1521 sm->last_recv_radius = NULL;
1522 #endif /* CONFIG_NO_RADIUS */
1523
1524 if (sm->eap_if->eapTimeout) {
1525 /*
1526 * Disconnect the STA since it did not reply to the last EAP
1527 * request and we cannot continue EAP processing (EAP-Failure
1528 * could only be sent if the EAP peer actually replied).
1529 */
1530 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "EAP Timeout, STA " MACSTR,
1531 MAC2STR(sta->addr));
1532
1533 sm->eap_if->portEnabled = FALSE;
1534 ap_sta_disconnect(hapd, sta, sta->addr,
1535 WLAN_REASON_PREV_AUTH_NOT_VALID);
1536 }
1537 }
1538
1539
ieee802_1x_rekey_broadcast(struct hostapd_data * hapd)1540 static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
1541 {
1542 struct eapol_authenticator *eapol = hapd->eapol_auth;
1543
1544 if (hapd->conf->default_wep_key_len < 1)
1545 return 0;
1546
1547 os_free(eapol->default_wep_key);
1548 eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
1549 if (eapol->default_wep_key == NULL ||
1550 random_get_bytes(eapol->default_wep_key,
1551 hapd->conf->default_wep_key_len)) {
1552 printf("Could not generate random WEP key.\n");
1553 os_free(eapol->default_wep_key);
1554 eapol->default_wep_key = NULL;
1555 return -1;
1556 }
1557
1558 wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
1559 eapol->default_wep_key,
1560 hapd->conf->default_wep_key_len);
1561
1562 return 0;
1563 }
1564
1565
ieee802_1x_sta_key_available(struct hostapd_data * hapd,struct sta_info * sta,void * ctx)1566 static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
1567 struct sta_info *sta, void *ctx)
1568 {
1569 if (sta->eapol_sm) {
1570 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1571 eapol_auth_step(sta->eapol_sm);
1572 }
1573 return 0;
1574 }
1575
1576
ieee802_1x_rekey(void * eloop_ctx,void * timeout_ctx)1577 static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
1578 {
1579 struct hostapd_data *hapd = eloop_ctx;
1580 struct eapol_authenticator *eapol = hapd->eapol_auth;
1581
1582 if (eapol->default_wep_key_idx >= 3)
1583 eapol->default_wep_key_idx =
1584 hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
1585 else
1586 eapol->default_wep_key_idx++;
1587
1588 wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
1589 eapol->default_wep_key_idx);
1590
1591 if (ieee802_1x_rekey_broadcast(hapd)) {
1592 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1593 HOSTAPD_LEVEL_WARNING, "failed to generate a "
1594 "new broadcast key");
1595 os_free(eapol->default_wep_key);
1596 eapol->default_wep_key = NULL;
1597 return;
1598 }
1599
1600 /* TODO: Could setup key for RX here, but change default TX keyid only
1601 * after new broadcast key has been sent to all stations. */
1602 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
1603 broadcast_ether_addr,
1604 eapol->default_wep_key_idx, 1, NULL, 0,
1605 eapol->default_wep_key,
1606 hapd->conf->default_wep_key_len)) {
1607 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1608 HOSTAPD_LEVEL_WARNING, "failed to configure a "
1609 "new broadcast key");
1610 os_free(eapol->default_wep_key);
1611 eapol->default_wep_key = NULL;
1612 return;
1613 }
1614
1615 ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
1616
1617 if (hapd->conf->wep_rekeying_period > 0) {
1618 eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
1619 ieee802_1x_rekey, hapd, NULL);
1620 }
1621 }
1622
1623
ieee802_1x_eapol_send(void * ctx,void * sta_ctx,u8 type,const u8 * data,size_t datalen)1624 static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
1625 const u8 *data, size_t datalen)
1626 {
1627 #ifdef CONFIG_WPS
1628 struct sta_info *sta = sta_ctx;
1629
1630 if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
1631 WLAN_STA_MAYBE_WPS) {
1632 const u8 *identity;
1633 size_t identity_len;
1634 struct eapol_state_machine *sm = sta->eapol_sm;
1635
1636 identity = eap_get_identity(sm->eap, &identity_len);
1637 if (identity &&
1638 ((identity_len == WSC_ID_ENROLLEE_LEN &&
1639 os_memcmp(identity, WSC_ID_ENROLLEE,
1640 WSC_ID_ENROLLEE_LEN) == 0) ||
1641 (identity_len == WSC_ID_REGISTRAR_LEN &&
1642 os_memcmp(identity, WSC_ID_REGISTRAR,
1643 WSC_ID_REGISTRAR_LEN) == 0))) {
1644 wpa_printf(MSG_DEBUG, "WPS: WLAN_STA_MAYBE_WPS -> "
1645 "WLAN_STA_WPS");
1646 sta->flags |= WLAN_STA_WPS;
1647 }
1648 }
1649 #endif /* CONFIG_WPS */
1650
1651 ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
1652 }
1653
1654
ieee802_1x_aaa_send(void * ctx,void * sta_ctx,const u8 * data,size_t datalen)1655 static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
1656 const u8 *data, size_t datalen)
1657 {
1658 #ifndef CONFIG_NO_RADIUS
1659 struct hostapd_data *hapd = ctx;
1660 struct sta_info *sta = sta_ctx;
1661
1662 ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
1663 #endif /* CONFIG_NO_RADIUS */
1664 }
1665
1666
_ieee802_1x_finished(void * ctx,void * sta_ctx,int success,int preauth)1667 static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
1668 int preauth)
1669 {
1670 struct hostapd_data *hapd = ctx;
1671 struct sta_info *sta = sta_ctx;
1672 if (preauth)
1673 rsn_preauth_finished(hapd, sta, success);
1674 else
1675 ieee802_1x_finished(hapd, sta, success);
1676 }
1677
1678
ieee802_1x_get_eap_user(void * ctx,const u8 * identity,size_t identity_len,int phase2,struct eap_user * user)1679 static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
1680 size_t identity_len, int phase2,
1681 struct eap_user *user)
1682 {
1683 struct hostapd_data *hapd = ctx;
1684 const struct hostapd_eap_user *eap_user;
1685 int i;
1686
1687 eap_user = hostapd_get_eap_user(hapd->conf, identity,
1688 identity_len, phase2);
1689 if (eap_user == NULL)
1690 return -1;
1691
1692 os_memset(user, 0, sizeof(*user));
1693 user->phase2 = phase2;
1694 for (i = 0; i < EAP_MAX_METHODS; i++) {
1695 user->methods[i].vendor = eap_user->methods[i].vendor;
1696 user->methods[i].method = eap_user->methods[i].method;
1697 }
1698
1699 if (eap_user->password) {
1700 user->password = os_malloc(eap_user->password_len);
1701 if (user->password == NULL)
1702 return -1;
1703 os_memcpy(user->password, eap_user->password,
1704 eap_user->password_len);
1705 user->password_len = eap_user->password_len;
1706 user->password_hash = eap_user->password_hash;
1707 }
1708 user->force_version = eap_user->force_version;
1709 user->ttls_auth = eap_user->ttls_auth;
1710
1711 return 0;
1712 }
1713
1714
ieee802_1x_sta_entry_alive(void * ctx,const u8 * addr)1715 static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
1716 {
1717 struct hostapd_data *hapd = ctx;
1718 struct sta_info *sta;
1719 sta = ap_get_sta(hapd, addr);
1720 if (sta == NULL || sta->eapol_sm == NULL)
1721 return 0;
1722 return 1;
1723 }
1724
1725
ieee802_1x_logger(void * ctx,const u8 * addr,eapol_logger_level level,const char * txt)1726 static void ieee802_1x_logger(void *ctx, const u8 *addr,
1727 eapol_logger_level level, const char *txt)
1728 {
1729 #ifndef CONFIG_NO_HOSTAPD_LOGGER
1730 struct hostapd_data *hapd = ctx;
1731 int hlevel;
1732
1733 switch (level) {
1734 case EAPOL_LOGGER_WARNING:
1735 hlevel = HOSTAPD_LEVEL_WARNING;
1736 break;
1737 case EAPOL_LOGGER_INFO:
1738 hlevel = HOSTAPD_LEVEL_INFO;
1739 break;
1740 case EAPOL_LOGGER_DEBUG:
1741 default:
1742 hlevel = HOSTAPD_LEVEL_DEBUG;
1743 break;
1744 }
1745
1746 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
1747 txt);
1748 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
1749 }
1750
1751
ieee802_1x_set_port_authorized(void * ctx,void * sta_ctx,int authorized)1752 static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
1753 int authorized)
1754 {
1755 struct hostapd_data *hapd = ctx;
1756 struct sta_info *sta = sta_ctx;
1757 ieee802_1x_set_sta_authorized(hapd, sta, authorized);
1758 }
1759
1760
_ieee802_1x_abort_auth(void * ctx,void * sta_ctx)1761 static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
1762 {
1763 struct hostapd_data *hapd = ctx;
1764 struct sta_info *sta = sta_ctx;
1765 ieee802_1x_abort_auth(hapd, sta);
1766 }
1767
1768
_ieee802_1x_tx_key(void * ctx,void * sta_ctx)1769 static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
1770 {
1771 struct hostapd_data *hapd = ctx;
1772 struct sta_info *sta = sta_ctx;
1773 ieee802_1x_tx_key(hapd, sta);
1774 }
1775
1776
ieee802_1x_eapol_event(void * ctx,void * sta_ctx,enum eapol_event type)1777 static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
1778 enum eapol_event type)
1779 {
1780 /* struct hostapd_data *hapd = ctx; */
1781 struct sta_info *sta = sta_ctx;
1782 switch (type) {
1783 case EAPOL_AUTH_SM_CHANGE:
1784 wpa_auth_sm_notify(sta->wpa_sm);
1785 break;
1786 case EAPOL_AUTH_REAUTHENTICATE:
1787 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
1788 break;
1789 }
1790 }
1791
1792
ieee802_1x_init(struct hostapd_data * hapd)1793 int ieee802_1x_init(struct hostapd_data *hapd)
1794 {
1795 int i;
1796 struct eapol_auth_config conf;
1797 struct eapol_auth_cb cb;
1798
1799 os_memset(&conf, 0, sizeof(conf));
1800 conf.ctx = hapd;
1801 conf.eap_reauth_period = hapd->conf->eap_reauth_period;
1802 conf.wpa = hapd->conf->wpa;
1803 conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
1804 conf.eap_server = hapd->conf->eap_server;
1805 conf.ssl_ctx = hapd->ssl_ctx;
1806 conf.msg_ctx = hapd->msg_ctx;
1807 conf.eap_sim_db_priv = hapd->eap_sim_db_priv;
1808 conf.eap_req_id_text = hapd->conf->eap_req_id_text;
1809 conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
1810 conf.pac_opaque_encr_key = hapd->conf->pac_opaque_encr_key;
1811 conf.eap_fast_a_id = hapd->conf->eap_fast_a_id;
1812 conf.eap_fast_a_id_len = hapd->conf->eap_fast_a_id_len;
1813 conf.eap_fast_a_id_info = hapd->conf->eap_fast_a_id_info;
1814 conf.eap_fast_prov = hapd->conf->eap_fast_prov;
1815 conf.pac_key_lifetime = hapd->conf->pac_key_lifetime;
1816 conf.pac_key_refresh_time = hapd->conf->pac_key_refresh_time;
1817 conf.eap_sim_aka_result_ind = hapd->conf->eap_sim_aka_result_ind;
1818 conf.tnc = hapd->conf->tnc;
1819 conf.wps = hapd->wps;
1820 conf.fragment_size = hapd->conf->fragment_size;
1821 conf.pwd_group = hapd->conf->pwd_group;
1822 conf.pbc_in_m1 = hapd->conf->pbc_in_m1;
1823
1824 os_memset(&cb, 0, sizeof(cb));
1825 cb.eapol_send = ieee802_1x_eapol_send;
1826 cb.aaa_send = ieee802_1x_aaa_send;
1827 cb.finished = _ieee802_1x_finished;
1828 cb.get_eap_user = ieee802_1x_get_eap_user;
1829 cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
1830 cb.logger = ieee802_1x_logger;
1831 cb.set_port_authorized = ieee802_1x_set_port_authorized;
1832 cb.abort_auth = _ieee802_1x_abort_auth;
1833 cb.tx_key = _ieee802_1x_tx_key;
1834 cb.eapol_event = ieee802_1x_eapol_event;
1835
1836 hapd->eapol_auth = eapol_auth_init(&conf, &cb);
1837 if (hapd->eapol_auth == NULL)
1838 return -1;
1839
1840 if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
1841 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
1842 return -1;
1843
1844 #ifndef CONFIG_NO_RADIUS
1845 if (radius_client_register(hapd->radius, RADIUS_AUTH,
1846 ieee802_1x_receive_auth, hapd))
1847 return -1;
1848 #endif /* CONFIG_NO_RADIUS */
1849
1850 if (hapd->conf->default_wep_key_len) {
1851 for (i = 0; i < 4; i++)
1852 hostapd_drv_set_key(hapd->conf->iface, hapd,
1853 WPA_ALG_NONE, NULL, i, 0, NULL, 0,
1854 NULL, 0);
1855
1856 ieee802_1x_rekey(hapd, NULL);
1857
1858 if (hapd->eapol_auth->default_wep_key == NULL)
1859 return -1;
1860 }
1861
1862 return 0;
1863 }
1864
1865
ieee802_1x_deinit(struct hostapd_data * hapd)1866 void ieee802_1x_deinit(struct hostapd_data *hapd)
1867 {
1868 eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
1869
1870 if (hapd->driver != NULL &&
1871 (hapd->conf->ieee802_1x || hapd->conf->wpa))
1872 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
1873
1874 eapol_auth_deinit(hapd->eapol_auth);
1875 hapd->eapol_auth = NULL;
1876 }
1877
1878
ieee802_1x_tx_status(struct hostapd_data * hapd,struct sta_info * sta,const u8 * buf,size_t len,int ack)1879 int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
1880 const u8 *buf, size_t len, int ack)
1881 {
1882 struct ieee80211_hdr *hdr;
1883 u8 *pos;
1884 const unsigned char rfc1042_hdr[ETH_ALEN] =
1885 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
1886
1887 if (sta == NULL)
1888 return -1;
1889 if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2)
1890 return 0;
1891
1892 hdr = (struct ieee80211_hdr *) buf;
1893 pos = (u8 *) (hdr + 1);
1894 if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
1895 return 0;
1896 pos += sizeof(rfc1042_hdr);
1897 if (WPA_GET_BE16(pos) != ETH_P_PAE)
1898 return 0;
1899 pos += 2;
1900
1901 return ieee802_1x_eapol_tx_status(hapd, sta, pos, buf + len - pos,
1902 ack);
1903 }
1904
1905
ieee802_1x_eapol_tx_status(struct hostapd_data * hapd,struct sta_info * sta,const u8 * buf,int len,int ack)1906 int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
1907 const u8 *buf, int len, int ack)
1908 {
1909 const struct ieee802_1x_hdr *xhdr =
1910 (const struct ieee802_1x_hdr *) buf;
1911 const u8 *pos = buf + sizeof(*xhdr);
1912 struct ieee802_1x_eapol_key *key;
1913
1914 if (len < (int) sizeof(*xhdr))
1915 return 0;
1916 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR " TX status - version=%d "
1917 "type=%d length=%d - ack=%d",
1918 MAC2STR(sta->addr), xhdr->version, xhdr->type,
1919 be_to_host16(xhdr->length), ack);
1920
1921 if (xhdr->type != IEEE802_1X_TYPE_EAPOL_KEY)
1922 return 0;
1923
1924 if (pos + sizeof(struct wpa_eapol_key) <= buf + len) {
1925 const struct wpa_eapol_key *wpa;
1926 wpa = (const struct wpa_eapol_key *) pos;
1927 if (wpa->type == EAPOL_KEY_TYPE_RSN ||
1928 wpa->type == EAPOL_KEY_TYPE_WPA)
1929 wpa_auth_eapol_key_tx_status(hapd->wpa_auth,
1930 sta->wpa_sm, ack);
1931 }
1932
1933 /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
1934 * or Authenticator state machines, but EAPOL-Key packets are not
1935 * retransmitted in case of failure. Try to re-send failed EAPOL-Key
1936 * packets couple of times because otherwise STA keys become
1937 * unsynchronized with AP. */
1938 if (!ack && pos + sizeof(*key) <= buf + len) {
1939 key = (struct ieee802_1x_eapol_key *) pos;
1940 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1941 HOSTAPD_LEVEL_DEBUG, "did not Ack EAPOL-Key "
1942 "frame (%scast index=%d)",
1943 key->key_index & BIT(7) ? "uni" : "broad",
1944 key->key_index & ~BIT(7));
1945 /* TODO: re-send EAPOL-Key couple of times (with short delay
1946 * between them?). If all attempt fail, report error and
1947 * deauthenticate STA so that it will get new keys when
1948 * authenticating again (e.g., after returning in range).
1949 * Separate limit/transmit state needed both for unicast and
1950 * broadcast keys(?) */
1951 }
1952 /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
1953 * to here and change the key only if the EAPOL-Key packet was Acked.
1954 */
1955
1956 return 1;
1957 }
1958
1959
ieee802_1x_get_identity(struct eapol_state_machine * sm,size_t * len)1960 u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
1961 {
1962 if (sm == NULL || sm->identity == NULL)
1963 return NULL;
1964
1965 *len = sm->identity_len;
1966 return sm->identity;
1967 }
1968
1969
ieee802_1x_get_radius_class(struct eapol_state_machine * sm,size_t * len,int idx)1970 u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
1971 int idx)
1972 {
1973 if (sm == NULL || sm->radius_class.attr == NULL ||
1974 idx >= (int) sm->radius_class.count)
1975 return NULL;
1976
1977 *len = sm->radius_class.attr[idx].len;
1978 return sm->radius_class.attr[idx].data;
1979 }
1980
1981
ieee802_1x_get_radius_cui(struct eapol_state_machine * sm)1982 struct wpabuf * ieee802_1x_get_radius_cui(struct eapol_state_machine *sm)
1983 {
1984 if (sm == NULL)
1985 return NULL;
1986 return sm->radius_cui;
1987 }
1988
1989
ieee802_1x_get_key(struct eapol_state_machine * sm,size_t * len)1990 const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
1991 {
1992 *len = 0;
1993 if (sm == NULL)
1994 return NULL;
1995
1996 *len = sm->eap_if->eapKeyDataLen;
1997 return sm->eap_if->eapKeyData;
1998 }
1999
2000
ieee802_1x_notify_port_enabled(struct eapol_state_machine * sm,int enabled)2001 void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
2002 int enabled)
2003 {
2004 if (sm == NULL)
2005 return;
2006 sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
2007 eapol_auth_step(sm);
2008 }
2009
2010
ieee802_1x_notify_port_valid(struct eapol_state_machine * sm,int valid)2011 void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
2012 int valid)
2013 {
2014 if (sm == NULL)
2015 return;
2016 sm->portValid = valid ? TRUE : FALSE;
2017 eapol_auth_step(sm);
2018 }
2019
2020
ieee802_1x_notify_pre_auth(struct eapol_state_machine * sm,int pre_auth)2021 void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
2022 {
2023 if (sm == NULL)
2024 return;
2025 if (pre_auth)
2026 sm->flags |= EAPOL_SM_PREAUTH;
2027 else
2028 sm->flags &= ~EAPOL_SM_PREAUTH;
2029 }
2030
2031
bool_txt(Boolean bool)2032 static const char * bool_txt(Boolean bool)
2033 {
2034 return bool ? "TRUE" : "FALSE";
2035 }
2036
2037
ieee802_1x_get_mib(struct hostapd_data * hapd,char * buf,size_t buflen)2038 int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2039 {
2040 /* TODO */
2041 return 0;
2042 }
2043
2044
ieee802_1x_get_mib_sta(struct hostapd_data * hapd,struct sta_info * sta,char * buf,size_t buflen)2045 int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2046 char *buf, size_t buflen)
2047 {
2048 int len = 0, ret;
2049 struct eapol_state_machine *sm = sta->eapol_sm;
2050 struct os_time t;
2051
2052 if (sm == NULL)
2053 return 0;
2054
2055 ret = os_snprintf(buf + len, buflen - len,
2056 "dot1xPaePortNumber=%d\n"
2057 "dot1xPaePortProtocolVersion=%d\n"
2058 "dot1xPaePortCapabilities=1\n"
2059 "dot1xPaePortInitialize=%d\n"
2060 "dot1xPaePortReauthenticate=FALSE\n",
2061 sta->aid,
2062 EAPOL_VERSION,
2063 sm->initialize);
2064 if (ret < 0 || (size_t) ret >= buflen - len)
2065 return len;
2066 len += ret;
2067
2068 /* dot1xAuthConfigTable */
2069 ret = os_snprintf(buf + len, buflen - len,
2070 "dot1xAuthPaeState=%d\n"
2071 "dot1xAuthBackendAuthState=%d\n"
2072 "dot1xAuthAdminControlledDirections=%d\n"
2073 "dot1xAuthOperControlledDirections=%d\n"
2074 "dot1xAuthAuthControlledPortStatus=%d\n"
2075 "dot1xAuthAuthControlledPortControl=%d\n"
2076 "dot1xAuthQuietPeriod=%u\n"
2077 "dot1xAuthServerTimeout=%u\n"
2078 "dot1xAuthReAuthPeriod=%u\n"
2079 "dot1xAuthReAuthEnabled=%s\n"
2080 "dot1xAuthKeyTxEnabled=%s\n",
2081 sm->auth_pae_state + 1,
2082 sm->be_auth_state + 1,
2083 sm->adminControlledDirections,
2084 sm->operControlledDirections,
2085 sm->authPortStatus,
2086 sm->portControl,
2087 sm->quietPeriod,
2088 sm->serverTimeout,
2089 sm->reAuthPeriod,
2090 bool_txt(sm->reAuthEnabled),
2091 bool_txt(sm->keyTxEnabled));
2092 if (ret < 0 || (size_t) ret >= buflen - len)
2093 return len;
2094 len += ret;
2095
2096 /* dot1xAuthStatsTable */
2097 ret = os_snprintf(buf + len, buflen - len,
2098 "dot1xAuthEapolFramesRx=%u\n"
2099 "dot1xAuthEapolFramesTx=%u\n"
2100 "dot1xAuthEapolStartFramesRx=%u\n"
2101 "dot1xAuthEapolLogoffFramesRx=%u\n"
2102 "dot1xAuthEapolRespIdFramesRx=%u\n"
2103 "dot1xAuthEapolRespFramesRx=%u\n"
2104 "dot1xAuthEapolReqIdFramesTx=%u\n"
2105 "dot1xAuthEapolReqFramesTx=%u\n"
2106 "dot1xAuthInvalidEapolFramesRx=%u\n"
2107 "dot1xAuthEapLengthErrorFramesRx=%u\n"
2108 "dot1xAuthLastEapolFrameVersion=%u\n"
2109 "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
2110 sm->dot1xAuthEapolFramesRx,
2111 sm->dot1xAuthEapolFramesTx,
2112 sm->dot1xAuthEapolStartFramesRx,
2113 sm->dot1xAuthEapolLogoffFramesRx,
2114 sm->dot1xAuthEapolRespIdFramesRx,
2115 sm->dot1xAuthEapolRespFramesRx,
2116 sm->dot1xAuthEapolReqIdFramesTx,
2117 sm->dot1xAuthEapolReqFramesTx,
2118 sm->dot1xAuthInvalidEapolFramesRx,
2119 sm->dot1xAuthEapLengthErrorFramesRx,
2120 sm->dot1xAuthLastEapolFrameVersion,
2121 MAC2STR(sm->addr));
2122 if (ret < 0 || (size_t) ret >= buflen - len)
2123 return len;
2124 len += ret;
2125
2126 /* dot1xAuthDiagTable */
2127 ret = os_snprintf(buf + len, buflen - len,
2128 "dot1xAuthEntersConnecting=%u\n"
2129 "dot1xAuthEapLogoffsWhileConnecting=%u\n"
2130 "dot1xAuthEntersAuthenticating=%u\n"
2131 "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
2132 "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
2133 "dot1xAuthAuthFailWhileAuthenticating=%u\n"
2134 "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
2135 "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
2136 "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
2137 "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
2138 "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
2139 "dot1xAuthBackendResponses=%u\n"
2140 "dot1xAuthBackendAccessChallenges=%u\n"
2141 "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
2142 "dot1xAuthBackendAuthSuccesses=%u\n"
2143 "dot1xAuthBackendAuthFails=%u\n",
2144 sm->authEntersConnecting,
2145 sm->authEapLogoffsWhileConnecting,
2146 sm->authEntersAuthenticating,
2147 sm->authAuthSuccessesWhileAuthenticating,
2148 sm->authAuthTimeoutsWhileAuthenticating,
2149 sm->authAuthFailWhileAuthenticating,
2150 sm->authAuthEapStartsWhileAuthenticating,
2151 sm->authAuthEapLogoffWhileAuthenticating,
2152 sm->authAuthReauthsWhileAuthenticated,
2153 sm->authAuthEapStartsWhileAuthenticated,
2154 sm->authAuthEapLogoffWhileAuthenticated,
2155 sm->backendResponses,
2156 sm->backendAccessChallenges,
2157 sm->backendOtherRequestsToSupplicant,
2158 sm->backendAuthSuccesses,
2159 sm->backendAuthFails);
2160 if (ret < 0 || (size_t) ret >= buflen - len)
2161 return len;
2162 len += ret;
2163
2164 /* dot1xAuthSessionStatsTable */
2165 os_get_time(&t);
2166 ret = os_snprintf(buf + len, buflen - len,
2167 /* TODO: dot1xAuthSessionOctetsRx */
2168 /* TODO: dot1xAuthSessionOctetsTx */
2169 /* TODO: dot1xAuthSessionFramesRx */
2170 /* TODO: dot1xAuthSessionFramesTx */
2171 "dot1xAuthSessionId=%08X-%08X\n"
2172 "dot1xAuthSessionAuthenticMethod=%d\n"
2173 "dot1xAuthSessionTime=%u\n"
2174 "dot1xAuthSessionTerminateCause=999\n"
2175 "dot1xAuthSessionUserName=%s\n",
2176 sta->acct_session_id_hi, sta->acct_session_id_lo,
2177 (wpa_key_mgmt_wpa_ieee8021x(
2178 wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
2179 1 : 2,
2180 (unsigned int) (t.sec - sta->acct_session_start),
2181 sm->identity);
2182 if (ret < 0 || (size_t) ret >= buflen - len)
2183 return len;
2184 len += ret;
2185
2186 return len;
2187 }
2188
2189
ieee802_1x_finished(struct hostapd_data * hapd,struct sta_info * sta,int success)2190 static void ieee802_1x_finished(struct hostapd_data *hapd,
2191 struct sta_info *sta, int success)
2192 {
2193 const u8 *key;
2194 size_t len;
2195 /* TODO: get PMKLifetime from WPA parameters */
2196 static const int dot11RSNAConfigPMKLifetime = 43200;
2197
2198 key = ieee802_1x_get_key(sta->eapol_sm, &len);
2199 if (success && key && len >= PMK_LEN &&
2200 wpa_auth_pmksa_add(sta->wpa_sm, key, dot11RSNAConfigPMKLifetime,
2201 sta->eapol_sm) == 0) {
2202 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
2203 HOSTAPD_LEVEL_DEBUG,
2204 "Added PMKSA cache entry (IEEE 802.1X)");
2205 }
2206
2207 if (!success) {
2208 /*
2209 * Many devices require deauthentication after WPS provisioning
2210 * and some may not be be able to do that themselves, so
2211 * disconnect the client here. In addition, this may also
2212 * benefit IEEE 802.1X/EAPOL authentication cases, too since
2213 * the EAPOL PAE state machine would remain in HELD state for
2214 * considerable amount of time and some EAP methods, like
2215 * EAP-FAST with anonymous provisioning, may require another
2216 * EAPOL authentication to be started to complete connection.
2217 */
2218 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "IEEE 802.1X: Force "
2219 "disconnection after EAP-Failure");
2220 /* Add a small sleep to increase likelihood of previously
2221 * requested EAP-Failure TX getting out before this should the
2222 * driver reorder operations.
2223 */
2224 os_sleep(0, 10000);
2225 #ifndef ANDROID_P2P
2226 /* We need not do this for driver. For AP-SME flags if we send this disassoc,
2227 * the p2p_client is gettig disassoc after it has completed the assoc
2228 */
2229 ap_sta_disconnect(hapd, sta, sta->addr,
2230 WLAN_REASON_IEEE_802_1X_AUTH_FAILED);
2231 #endif
2232 }
2233 }
2234