blob: 9bbd1ff2ea6a4e45b97e2b0276593cf4641cafa2 [file] [log] [blame]
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001/*
2 * hostapd / IEEE 802.1X-2004 Authenticator
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004 *
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07007 */
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"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070017#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"
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080023#include "p2p/p2p.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070024#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
35static void ieee802_1x_finished(struct hostapd_data *hapd,
36 struct sta_info *sta, int success);
37
38
39static 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
77void 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) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070086 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 {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070091 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
107static 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 key->key_length = htons(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
187static struct hostapd_wep_keys *
188ieee802_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
233static struct hostapd_wep_keys *
234ieee802_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
286void 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
352const 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
366int 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
380static 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
412static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
413 struct sta_info *sta,
414 const u8 *eap, size_t len)
415{
416 struct radius_msg *msg;
417 char buf[128];
418 struct eapol_state_machine *sm = sta->eapol_sm;
Dmitry Shmidt04949592012-07-19 12:16:46 -0700419 struct hostapd_radius_attr *attr;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700420
421 if (sm == NULL)
422 return;
423
424 ieee802_1x_learn_identity(hapd, sm, eap, len);
425
426 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
427 "packet");
428
429 sm->radius_identifier = radius_client_get_id(hapd->radius);
430 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
431 sm->radius_identifier);
432 if (msg == NULL) {
433 printf("Could not create net RADIUS packet\n");
434 return;
435 }
436
437 radius_msg_make_authenticator(msg, (u8 *) sta, sizeof(*sta));
438
439 if (sm->identity &&
440 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
441 sm->identity, sm->identity_len)) {
442 printf("Could not add User-Name\n");
443 goto fail;
444 }
445
Dmitry Shmidt04949592012-07-19 12:16:46 -0700446 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
447 RADIUS_ATTR_NAS_IP_ADDRESS) &&
448 hapd->conf->own_ip_addr.af == AF_INET &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700449 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
450 (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
451 printf("Could not add NAS-IP-Address\n");
452 goto fail;
453 }
454
455#ifdef CONFIG_IPV6
Dmitry Shmidt04949592012-07-19 12:16:46 -0700456 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
457 RADIUS_ATTR_NAS_IPV6_ADDRESS) &&
458 hapd->conf->own_ip_addr.af == AF_INET6 &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700459 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
460 (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
461 printf("Could not add NAS-IPv6-Address\n");
462 goto fail;
463 }
464#endif /* CONFIG_IPV6 */
465
Dmitry Shmidt04949592012-07-19 12:16:46 -0700466 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
467 RADIUS_ATTR_NAS_IDENTIFIER) &&
468 hapd->conf->nas_identifier &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700469 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
470 (u8 *) hapd->conf->nas_identifier,
471 os_strlen(hapd->conf->nas_identifier))) {
472 printf("Could not add NAS-Identifier\n");
473 goto fail;
474 }
475
Dmitry Shmidt04949592012-07-19 12:16:46 -0700476 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
477 RADIUS_ATTR_NAS_PORT) &&
478 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700479 printf("Could not add NAS-Port\n");
480 goto fail;
481 }
482
483 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":%s",
484 MAC2STR(hapd->own_addr), hapd->conf->ssid.ssid);
485 buf[sizeof(buf) - 1] = '\0';
Dmitry Shmidt04949592012-07-19 12:16:46 -0700486 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
487 RADIUS_ATTR_CALLED_STATION_ID) &&
488 !radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700489 (u8 *) buf, os_strlen(buf))) {
490 printf("Could not add Called-Station-Id\n");
491 goto fail;
492 }
493
494 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
495 MAC2STR(sta->addr));
496 buf[sizeof(buf) - 1] = '\0';
497 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
498 (u8 *) buf, os_strlen(buf))) {
499 printf("Could not add Calling-Station-Id\n");
500 goto fail;
501 }
502
503 /* TODO: should probably check MTU from driver config; 2304 is max for
504 * IEEE 802.11, but use 1400 to avoid problems with too large packets
505 */
Dmitry Shmidt04949592012-07-19 12:16:46 -0700506 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
507 RADIUS_ATTR_FRAMED_MTU) &&
508 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700509 printf("Could not add Framed-MTU\n");
510 goto fail;
511 }
512
Dmitry Shmidt04949592012-07-19 12:16:46 -0700513 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
514 RADIUS_ATTR_NAS_PORT_TYPE) &&
515 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700516 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
517 printf("Could not add NAS-Port-Type\n");
518 goto fail;
519 }
520
521 if (sta->flags & WLAN_STA_PREAUTH) {
522 os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
523 sizeof(buf));
524 } else {
525 os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
526 radius_sta_rate(hapd, sta) / 2,
527 (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
528 radius_mode_txt(hapd));
529 buf[sizeof(buf) - 1] = '\0';
530 }
Dmitry Shmidt04949592012-07-19 12:16:46 -0700531 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
532 RADIUS_ATTR_CONNECT_INFO) &&
533 !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700534 (u8 *) buf, os_strlen(buf))) {
535 printf("Could not add Connect-Info\n");
536 goto fail;
537 }
538
539 if (eap && !radius_msg_add_eap(msg, eap, len)) {
540 printf("Could not add EAP-Message\n");
541 goto fail;
542 }
543
544 /* State attribute must be copied if and only if this packet is
545 * Access-Request reply to the previous Access-Challenge */
546 if (sm->last_recv_radius &&
547 radius_msg_get_hdr(sm->last_recv_radius)->code ==
548 RADIUS_CODE_ACCESS_CHALLENGE) {
549 int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
550 RADIUS_ATTR_STATE);
551 if (res < 0) {
552 printf("Could not copy State attribute from previous "
553 "Access-Challenge\n");
554 goto fail;
555 }
556 if (res > 0) {
557 wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
558 }
559 }
560
Dmitry Shmidt04949592012-07-19 12:16:46 -0700561 if (hapd->conf->radius_request_cui) {
562 const u8 *cui;
563 size_t cui_len;
564 /* Add previously learned CUI or nul CUI to request CUI */
565 if (sm->radius_cui) {
566 cui = wpabuf_head(sm->radius_cui);
567 cui_len = wpabuf_len(sm->radius_cui);
568 } else {
569 cui = (const u8 *) "\0";
570 cui_len = 1;
571 }
572 if (!radius_msg_add_attr(msg,
573 RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
574 cui, cui_len)) {
575 wpa_printf(MSG_ERROR, "Could not add CUI");
576 goto fail;
577 }
578 }
579
580 for (attr = hapd->conf->radius_auth_req_attr; attr; attr = attr->next)
581 {
582 if (!radius_msg_add_attr(msg, attr->type,
583 wpabuf_head(attr->val),
584 wpabuf_len(attr->val))) {
585 wpa_printf(MSG_ERROR, "Could not add RADIUS "
586 "attribute");
587 goto fail;
588 }
589 }
590
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700591 if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0)
592 goto fail;
593
594 return;
595
596 fail:
597 radius_msg_free(msg);
598}
599#endif /* CONFIG_NO_RADIUS */
600
601
602static void handle_eap_response(struct hostapd_data *hapd,
603 struct sta_info *sta, struct eap_hdr *eap,
604 size_t len)
605{
606 u8 type, *data;
607 struct eapol_state_machine *sm = sta->eapol_sm;
608 if (sm == NULL)
609 return;
610
611 data = (u8 *) (eap + 1);
612
613 if (len < sizeof(*eap) + 1) {
614 printf("handle_eap_response: too short response data\n");
615 return;
616 }
617
618 sm->eap_type_supp = type = data[0];
619
620 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
621 HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
622 "id=%d len=%d) from STA: EAP Response-%s (%d)",
623 eap->code, eap->identifier, be_to_host16(eap->length),
624 eap_server_get_name(0, type), type);
625
626 sm->dot1xAuthEapolRespFramesRx++;
627
628 wpabuf_free(sm->eap_if->eapRespData);
629 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
630 sm->eapolEap = TRUE;
631}
632
633
634/* Process incoming EAP packet from Supplicant */
635static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
636 u8 *buf, size_t len)
637{
638 struct eap_hdr *eap;
639 u16 eap_len;
640
641 if (len < sizeof(*eap)) {
642 printf(" too short EAP packet\n");
643 return;
644 }
645
646 eap = (struct eap_hdr *) buf;
647
648 eap_len = be_to_host16(eap->length);
649 wpa_printf(MSG_DEBUG, "EAP: code=%d identifier=%d length=%d",
650 eap->code, eap->identifier, eap_len);
651 if (eap_len < sizeof(*eap)) {
652 wpa_printf(MSG_DEBUG, " Invalid EAP length");
653 return;
654 } else if (eap_len > len) {
655 wpa_printf(MSG_DEBUG, " Too short frame to contain this EAP "
656 "packet");
657 return;
658 } else if (eap_len < len) {
659 wpa_printf(MSG_DEBUG, " Ignoring %lu extra bytes after EAP "
660 "packet", (unsigned long) len - eap_len);
661 }
662
663 switch (eap->code) {
664 case EAP_CODE_REQUEST:
665 wpa_printf(MSG_DEBUG, " (request)");
666 return;
667 case EAP_CODE_RESPONSE:
668 wpa_printf(MSG_DEBUG, " (response)");
669 handle_eap_response(hapd, sta, eap, eap_len);
670 break;
671 case EAP_CODE_SUCCESS:
672 wpa_printf(MSG_DEBUG, " (success)");
673 return;
674 case EAP_CODE_FAILURE:
675 wpa_printf(MSG_DEBUG, " (failure)");
676 return;
677 default:
678 wpa_printf(MSG_DEBUG, " (unknown code)");
679 return;
680 }
681}
682
683
684static struct eapol_state_machine *
685ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
686{
687 int flags = 0;
688 if (sta->flags & WLAN_STA_PREAUTH)
689 flags |= EAPOL_SM_PREAUTH;
690 if (sta->wpa_sm) {
691 flags |= EAPOL_SM_USES_WPA;
692 if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
693 flags |= EAPOL_SM_FROM_PMKSA_CACHE;
694 }
695 return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
696 sta->wps_ie, sta->p2p_ie, sta);
697}
698
699
700/**
701 * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
702 * @hapd: hostapd BSS data
703 * @sa: Source address (sender of the EAPOL frame)
704 * @buf: EAPOL frame
705 * @len: Length of buf in octets
706 *
707 * This function is called for each incoming EAPOL frame from the interface
708 */
709void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
710 size_t len)
711{
712 struct sta_info *sta;
713 struct ieee802_1x_hdr *hdr;
714 struct ieee802_1x_eapol_key *key;
715 u16 datalen;
716 struct rsn_pmksa_cache_entry *pmksa;
717 int key_mgmt;
718
719 if (!hapd->conf->ieee802_1x && !hapd->conf->wpa &&
720 !hapd->conf->wps_state)
721 return;
722
723 wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
724 (unsigned long) len, MAC2STR(sa));
725 sta = ap_get_sta(hapd, sa);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800726 if (!sta || (!(sta->flags & (WLAN_STA_ASSOC | WLAN_STA_PREAUTH)) &&
727 !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700728 wpa_printf(MSG_DEBUG, "IEEE 802.1X data frame from not "
729 "associated/Pre-authenticating STA");
730 return;
731 }
732
733 if (len < sizeof(*hdr)) {
734 printf(" too short IEEE 802.1X packet\n");
735 return;
736 }
737
738 hdr = (struct ieee802_1x_hdr *) buf;
739 datalen = be_to_host16(hdr->length);
740 wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
741 hdr->version, hdr->type, datalen);
742
743 if (len - sizeof(*hdr) < datalen) {
744 printf(" frame too short for this IEEE 802.1X packet\n");
745 if (sta->eapol_sm)
746 sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
747 return;
748 }
749 if (len - sizeof(*hdr) > datalen) {
750 wpa_printf(MSG_DEBUG, " ignoring %lu extra octets after "
751 "IEEE 802.1X packet",
752 (unsigned long) len - sizeof(*hdr) - datalen);
753 }
754
755 if (sta->eapol_sm) {
756 sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
757 sta->eapol_sm->dot1xAuthEapolFramesRx++;
758 }
759
760 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
761 if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
762 hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
763 (key->type == EAPOL_KEY_TYPE_WPA ||
764 key->type == EAPOL_KEY_TYPE_RSN)) {
765 wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
766 sizeof(*hdr) + datalen);
767 return;
768 }
769
770 if (!hapd->conf->ieee802_1x &&
771 !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
772 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
773 "802.1X not enabled and WPS not used");
774 return;
775 }
776
777 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
778 if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
779 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
780 "STA is using PSK");
781 return;
782 }
783
784 if (!sta->eapol_sm) {
785 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
786 if (!sta->eapol_sm)
787 return;
788
789#ifdef CONFIG_WPS
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800790 if (!hapd->conf->ieee802_1x) {
791 u32 wflags = sta->flags & (WLAN_STA_WPS |
792 WLAN_STA_WPS2 |
793 WLAN_STA_MAYBE_WPS);
794 if (wflags == WLAN_STA_MAYBE_WPS ||
795 wflags == (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) {
796 /*
797 * Delay EAPOL frame transmission until a
798 * possible WPS STA initiates the handshake
799 * with EAPOL-Start. Only allow the wait to be
800 * skipped if the STA is known to support WPS
801 * 2.0.
802 */
803 wpa_printf(MSG_DEBUG, "WPS: Do not start "
804 "EAPOL until EAPOL-Start is "
805 "received");
806 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
807 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700808 }
809#endif /* CONFIG_WPS */
810
811 sta->eapol_sm->eap_if->portEnabled = TRUE;
812 }
813
814 /* since we support version 1, we can ignore version field and proceed
815 * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
816 /* TODO: actually, we are not version 1 anymore.. However, Version 2
817 * does not change frame contents, so should be ok to process frames
818 * more or less identically. Some changes might be needed for
819 * verification of fields. */
820
821 switch (hdr->type) {
822 case IEEE802_1X_TYPE_EAP_PACKET:
823 handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
824 break;
825
826 case IEEE802_1X_TYPE_EAPOL_START:
827 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
828 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Start "
829 "from STA");
830 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
831 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
832 if (pmksa) {
833 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
834 HOSTAPD_LEVEL_DEBUG, "cached PMKSA "
835 "available - ignore it since "
836 "STA sent EAPOL-Start");
837 wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
838 }
839 sta->eapol_sm->eapolStart = TRUE;
840 sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
841 eap_server_clear_identity(sta->eapol_sm->eap);
842 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
843 break;
844
845 case IEEE802_1X_TYPE_EAPOL_LOGOFF:
846 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
847 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Logoff "
848 "from STA");
849 sta->acct_terminate_cause =
850 RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
851 accounting_sta_stop(hapd, sta);
852 sta->eapol_sm->eapolLogoff = TRUE;
853 sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
854 eap_server_clear_identity(sta->eapol_sm->eap);
855 break;
856
857 case IEEE802_1X_TYPE_EAPOL_KEY:
858 wpa_printf(MSG_DEBUG, " EAPOL-Key");
859 if (!ap_sta_is_authorized(sta)) {
860 wpa_printf(MSG_DEBUG, " Dropped key data from "
861 "unauthorized Supplicant");
862 break;
863 }
864 break;
865
866 case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
867 wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
868 /* TODO: implement support for this; show data */
869 break;
870
871 default:
872 wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
873 sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
874 break;
875 }
876
877 eapol_auth_step(sta->eapol_sm);
878}
879
880
881/**
882 * ieee802_1x_new_station - Start IEEE 802.1X authentication
883 * @hapd: hostapd BSS data
884 * @sta: The station
885 *
886 * This function is called to start IEEE 802.1X authentication when a new
887 * station completes IEEE 802.11 association.
888 */
889void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
890{
891 struct rsn_pmksa_cache_entry *pmksa;
892 int reassoc = 1;
893 int force_1x = 0;
894 int key_mgmt;
895
896#ifdef CONFIG_WPS
897 if (hapd->conf->wps_state && hapd->conf->wpa &&
898 (sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
899 /*
900 * Need to enable IEEE 802.1X/EAPOL state machines for possible
901 * WPS handshake even if IEEE 802.1X/EAPOL is not used for
902 * authentication in this BSS.
903 */
904 force_1x = 1;
905 }
906#endif /* CONFIG_WPS */
907
908 if (!force_1x && !hapd->conf->ieee802_1x) {
909 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - "
910 "802.1X not enabled or forced for WPS");
Dmitry Shmidt04949592012-07-19 12:16:46 -0700911 /*
912 * Clear any possible EAPOL authenticator state to support
913 * reassociation change from WPS to PSK.
914 */
915 ieee802_1x_free_station(sta);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700916 return;
917 }
918
919 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
920 if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
921 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - using PSK");
Dmitry Shmidt04949592012-07-19 12:16:46 -0700922 /*
923 * Clear any possible EAPOL authenticator state to support
924 * reassociation change from WPA-EAP to PSK.
925 */
926 ieee802_1x_free_station(sta);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700927 return;
928 }
929
930 if (sta->eapol_sm == NULL) {
931 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
932 HOSTAPD_LEVEL_DEBUG, "start authentication");
933 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
934 if (sta->eapol_sm == NULL) {
935 hostapd_logger(hapd, sta->addr,
936 HOSTAPD_MODULE_IEEE8021X,
937 HOSTAPD_LEVEL_INFO,
938 "failed to allocate state machine");
939 return;
940 }
941 reassoc = 0;
942 }
943
944#ifdef CONFIG_WPS
945 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800946 if (!hapd->conf->ieee802_1x && !(sta->flags & WLAN_STA_WPS2)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700947 /*
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800948 * Delay EAPOL frame transmission until a possible WPS STA
949 * initiates the handshake with EAPOL-Start. Only allow the
950 * wait to be skipped if the STA is known to support WPS 2.0.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700951 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800952 wpa_printf(MSG_DEBUG, "WPS: Do not start EAPOL until "
953 "EAPOL-Start is received");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700954 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
955 }
956#endif /* CONFIG_WPS */
957
958 sta->eapol_sm->eap_if->portEnabled = TRUE;
959
960#ifdef CONFIG_IEEE80211R
961 if (sta->auth_alg == WLAN_AUTH_FT) {
962 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
963 HOSTAPD_LEVEL_DEBUG,
964 "PMK from FT - skip IEEE 802.1X/EAP");
965 /* Setup EAPOL state machines to already authenticated state
966 * because of existing FT information from R0KH. */
967 sta->eapol_sm->keyRun = TRUE;
968 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
969 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
970 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
971 sta->eapol_sm->authSuccess = TRUE;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800972 sta->eapol_sm->authFail = FALSE;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700973 if (sta->eapol_sm->eap)
974 eap_sm_notify_cached(sta->eapol_sm->eap);
975 /* TODO: get vlan_id from R0KH using RRB message */
976 return;
977 }
978#endif /* CONFIG_IEEE80211R */
979
980 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
981 if (pmksa) {
982 int old_vlanid;
983
984 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
985 HOSTAPD_LEVEL_DEBUG,
986 "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
987 /* Setup EAPOL state machines to already authenticated state
988 * because of existing PMKSA information in the cache. */
989 sta->eapol_sm->keyRun = TRUE;
990 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
991 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
992 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
993 sta->eapol_sm->authSuccess = TRUE;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -0800994 sta->eapol_sm->authFail = FALSE;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700995 if (sta->eapol_sm->eap)
996 eap_sm_notify_cached(sta->eapol_sm->eap);
997 old_vlanid = sta->vlan_id;
998 pmksa_cache_to_eapol_data(pmksa, sta->eapol_sm);
999 if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
1000 sta->vlan_id = 0;
1001 ap_sta_bind_vlan(hapd, sta, old_vlanid);
1002 } else {
1003 if (reassoc) {
1004 /*
1005 * Force EAPOL state machines to start
1006 * re-authentication without having to wait for the
1007 * Supplicant to send EAPOL-Start.
1008 */
1009 sta->eapol_sm->reAuthenticate = TRUE;
1010 }
1011 eapol_auth_step(sta->eapol_sm);
1012 }
1013}
1014
1015
1016void ieee802_1x_free_station(struct sta_info *sta)
1017{
1018 struct eapol_state_machine *sm = sta->eapol_sm;
1019
1020 if (sm == NULL)
1021 return;
1022
1023 sta->eapol_sm = NULL;
1024
1025#ifndef CONFIG_NO_RADIUS
1026 radius_msg_free(sm->last_recv_radius);
1027 radius_free_class(&sm->radius_class);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001028 wpabuf_free(sm->radius_cui);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001029#endif /* CONFIG_NO_RADIUS */
1030
1031 os_free(sm->identity);
1032 eapol_auth_free(sm);
1033}
1034
1035
1036#ifndef CONFIG_NO_RADIUS
1037static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
1038 struct sta_info *sta)
1039{
1040 u8 *eap;
1041 size_t len;
1042 struct eap_hdr *hdr;
1043 int eap_type = -1;
1044 char buf[64];
1045 struct radius_msg *msg;
1046 struct eapol_state_machine *sm = sta->eapol_sm;
1047
1048 if (sm == NULL || sm->last_recv_radius == NULL) {
1049 if (sm)
1050 sm->eap_if->aaaEapNoReq = TRUE;
1051 return;
1052 }
1053
1054 msg = sm->last_recv_radius;
1055
1056 eap = radius_msg_get_eap(msg, &len);
1057 if (eap == NULL) {
1058 /* RFC 3579, Chap. 2.6.3:
1059 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
1060 * attribute */
1061 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1062 HOSTAPD_LEVEL_WARNING, "could not extract "
1063 "EAP-Message from RADIUS message");
1064 sm->eap_if->aaaEapNoReq = TRUE;
1065 return;
1066 }
1067
1068 if (len < sizeof(*hdr)) {
1069 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1070 HOSTAPD_LEVEL_WARNING, "too short EAP packet "
1071 "received from authentication server");
1072 os_free(eap);
1073 sm->eap_if->aaaEapNoReq = TRUE;
1074 return;
1075 }
1076
1077 if (len > sizeof(*hdr))
1078 eap_type = eap[sizeof(*hdr)];
1079
1080 hdr = (struct eap_hdr *) eap;
1081 switch (hdr->code) {
1082 case EAP_CODE_REQUEST:
1083 if (eap_type >= 0)
1084 sm->eap_type_authsrv = eap_type;
1085 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
1086 eap_type >= 0 ? eap_server_get_name(0, eap_type) :
1087 "??",
1088 eap_type);
1089 break;
1090 case EAP_CODE_RESPONSE:
1091 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
1092 eap_type >= 0 ? eap_server_get_name(0, eap_type) :
1093 "??",
1094 eap_type);
1095 break;
1096 case EAP_CODE_SUCCESS:
1097 os_strlcpy(buf, "EAP Success", sizeof(buf));
1098 break;
1099 case EAP_CODE_FAILURE:
1100 os_strlcpy(buf, "EAP Failure", sizeof(buf));
1101 break;
1102 default:
1103 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
1104 break;
1105 }
1106 buf[sizeof(buf) - 1] = '\0';
1107 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1108 HOSTAPD_LEVEL_DEBUG, "decapsulated EAP packet (code=%d "
1109 "id=%d len=%d) from RADIUS server: %s",
1110 hdr->code, hdr->identifier, be_to_host16(hdr->length),
1111 buf);
1112 sm->eap_if->aaaEapReq = TRUE;
1113
1114 wpabuf_free(sm->eap_if->aaaEapReqData);
1115 sm->eap_if->aaaEapReqData = wpabuf_alloc_ext_data(eap, len);
1116}
1117
1118
1119static void ieee802_1x_get_keys(struct hostapd_data *hapd,
1120 struct sta_info *sta, struct radius_msg *msg,
1121 struct radius_msg *req,
1122 const u8 *shared_secret,
1123 size_t shared_secret_len)
1124{
1125 struct radius_ms_mppe_keys *keys;
1126 struct eapol_state_machine *sm = sta->eapol_sm;
1127 if (sm == NULL)
1128 return;
1129
1130 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
1131 shared_secret_len);
1132
1133 if (keys && keys->send && keys->recv) {
1134 size_t len = keys->send_len + keys->recv_len;
1135 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
1136 keys->send, keys->send_len);
1137 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
1138 keys->recv, keys->recv_len);
1139
1140 os_free(sm->eap_if->aaaEapKeyData);
1141 sm->eap_if->aaaEapKeyData = os_malloc(len);
1142 if (sm->eap_if->aaaEapKeyData) {
1143 os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
1144 keys->recv_len);
1145 os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
1146 keys->send, keys->send_len);
1147 sm->eap_if->aaaEapKeyDataLen = len;
1148 sm->eap_if->aaaEapKeyAvailable = TRUE;
1149 }
1150 }
1151
1152 if (keys) {
1153 os_free(keys->send);
1154 os_free(keys->recv);
1155 os_free(keys);
1156 }
1157}
1158
1159
1160static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
1161 struct sta_info *sta,
1162 struct radius_msg *msg)
1163{
1164 u8 *class;
1165 size_t class_len;
1166 struct eapol_state_machine *sm = sta->eapol_sm;
1167 int count, i;
1168 struct radius_attr_data *nclass;
1169 size_t nclass_count;
1170
1171 if (!hapd->conf->radius->acct_server || hapd->radius == NULL ||
1172 sm == NULL)
1173 return;
1174
1175 radius_free_class(&sm->radius_class);
1176 count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
1177 if (count <= 0)
1178 return;
1179
1180 nclass = os_zalloc(count * sizeof(struct radius_attr_data));
1181 if (nclass == NULL)
1182 return;
1183
1184 nclass_count = 0;
1185
1186 class = NULL;
1187 for (i = 0; i < count; i++) {
1188 do {
1189 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
1190 &class, &class_len,
1191 class) < 0) {
1192 i = count;
1193 break;
1194 }
1195 } while (class_len < 1);
1196
1197 nclass[nclass_count].data = os_malloc(class_len);
1198 if (nclass[nclass_count].data == NULL)
1199 break;
1200
1201 os_memcpy(nclass[nclass_count].data, class, class_len);
1202 nclass[nclass_count].len = class_len;
1203 nclass_count++;
1204 }
1205
1206 sm->radius_class.attr = nclass;
1207 sm->radius_class.count = nclass_count;
1208 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Stored %lu RADIUS Class "
1209 "attributes for " MACSTR,
1210 (unsigned long) sm->radius_class.count,
1211 MAC2STR(sta->addr));
1212}
1213
1214
1215/* Update sta->identity based on User-Name attribute in Access-Accept */
1216static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
1217 struct sta_info *sta,
1218 struct radius_msg *msg)
1219{
1220 u8 *buf, *identity;
1221 size_t len;
1222 struct eapol_state_machine *sm = sta->eapol_sm;
1223
1224 if (sm == NULL)
1225 return;
1226
1227 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
1228 NULL) < 0)
1229 return;
1230
1231 identity = os_malloc(len + 1);
1232 if (identity == NULL)
1233 return;
1234
1235 os_memcpy(identity, buf, len);
1236 identity[len] = '\0';
1237
1238 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1239 HOSTAPD_LEVEL_DEBUG, "old identity '%s' updated with "
1240 "User-Name from Access-Accept '%s'",
1241 sm->identity ? (char *) sm->identity : "N/A",
1242 (char *) identity);
1243
1244 os_free(sm->identity);
1245 sm->identity = identity;
1246 sm->identity_len = len;
1247}
1248
1249
Dmitry Shmidt04949592012-07-19 12:16:46 -07001250/* Update CUI based on Chargeable-User-Identity attribute in Access-Accept */
1251static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd,
1252 struct sta_info *sta,
1253 struct radius_msg *msg)
1254{
1255 struct eapol_state_machine *sm = sta->eapol_sm;
1256 struct wpabuf *cui;
1257 u8 *buf;
1258 size_t len;
1259
1260 if (sm == NULL)
1261 return;
1262
1263 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
1264 &buf, &len, NULL) < 0)
1265 return;
1266
1267 cui = wpabuf_alloc_copy(buf, len);
1268 if (cui == NULL)
1269 return;
1270
1271 wpabuf_free(sm->radius_cui);
1272 sm->radius_cui = cui;
1273}
1274
1275
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001276struct sta_id_search {
1277 u8 identifier;
1278 struct eapol_state_machine *sm;
1279};
1280
1281
1282static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
1283 struct sta_info *sta,
1284 void *ctx)
1285{
1286 struct sta_id_search *id_search = ctx;
1287 struct eapol_state_machine *sm = sta->eapol_sm;
1288
1289 if (sm && sm->radius_identifier >= 0 &&
1290 sm->radius_identifier == id_search->identifier) {
1291 id_search->sm = sm;
1292 return 1;
1293 }
1294 return 0;
1295}
1296
1297
1298static struct eapol_state_machine *
1299ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
1300{
1301 struct sta_id_search id_search;
1302 id_search.identifier = identifier;
1303 id_search.sm = NULL;
1304 ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
1305 return id_search.sm;
1306}
1307
1308
1309/**
1310 * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
1311 * @msg: RADIUS response message
1312 * @req: RADIUS request message
1313 * @shared_secret: RADIUS shared secret
1314 * @shared_secret_len: Length of shared_secret in octets
1315 * @data: Context data (struct hostapd_data *)
1316 * Returns: Processing status
1317 */
1318static RadiusRxResult
1319ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
1320 const u8 *shared_secret, size_t shared_secret_len,
1321 void *data)
1322{
1323 struct hostapd_data *hapd = data;
1324 struct sta_info *sta;
1325 u32 session_timeout = 0, termination_action, acct_interim_interval;
1326 int session_timeout_set, old_vlanid = 0;
1327 struct eapol_state_machine *sm;
1328 int override_eapReq = 0;
1329 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
1330
1331 sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
1332 if (sm == NULL) {
1333 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Could not find matching "
1334 "station for this RADIUS message");
1335 return RADIUS_RX_UNKNOWN;
1336 }
1337 sta = sm->sta;
1338
1339 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
1340 * present when packet contains an EAP-Message attribute */
1341 if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
1342 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
1343 0) < 0 &&
1344 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
1345 wpa_printf(MSG_DEBUG, "Allowing RADIUS Access-Reject without "
1346 "Message-Authenticator since it does not include "
1347 "EAP-Message");
1348 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
1349 req, 1)) {
1350 printf("Incoming RADIUS packet did not have correct "
1351 "Message-Authenticator - dropped\n");
1352 return RADIUS_RX_INVALID_AUTHENTICATOR;
1353 }
1354
1355 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
1356 hdr->code != RADIUS_CODE_ACCESS_REJECT &&
1357 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
1358 printf("Unknown RADIUS message code\n");
1359 return RADIUS_RX_UNKNOWN;
1360 }
1361
1362 sm->radius_identifier = -1;
1363 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
1364 MAC2STR(sta->addr));
1365
1366 radius_msg_free(sm->last_recv_radius);
1367 sm->last_recv_radius = msg;
1368
1369 session_timeout_set =
1370 !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
1371 &session_timeout);
1372 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
1373 &termination_action))
1374 termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
1375
1376 if (hapd->conf->acct_interim_interval == 0 &&
1377 hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
1378 radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
1379 &acct_interim_interval) == 0) {
1380 if (acct_interim_interval < 60) {
1381 hostapd_logger(hapd, sta->addr,
1382 HOSTAPD_MODULE_IEEE8021X,
1383 HOSTAPD_LEVEL_INFO,
1384 "ignored too small "
1385 "Acct-Interim-Interval %d",
1386 acct_interim_interval);
1387 } else
1388 sta->acct_interim_interval = acct_interim_interval;
1389 }
1390
1391
1392 switch (hdr->code) {
1393 case RADIUS_CODE_ACCESS_ACCEPT:
1394 if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
1395 sta->vlan_id = 0;
1396#ifndef CONFIG_NO_VLAN
1397 else {
1398 old_vlanid = sta->vlan_id;
1399 sta->vlan_id = radius_msg_get_vlanid(msg);
1400 }
1401 if (sta->vlan_id > 0 &&
1402 hostapd_get_vlan_id_ifname(hapd->conf->vlan,
1403 sta->vlan_id)) {
1404 hostapd_logger(hapd, sta->addr,
1405 HOSTAPD_MODULE_RADIUS,
1406 HOSTAPD_LEVEL_INFO,
1407 "VLAN ID %d", sta->vlan_id);
1408 } else if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_REQUIRED) {
1409 sta->eapol_sm->authFail = TRUE;
1410 hostapd_logger(hapd, sta->addr,
1411 HOSTAPD_MODULE_IEEE8021X,
1412 HOSTAPD_LEVEL_INFO, "authentication "
1413 "server did not include required VLAN "
1414 "ID in Access-Accept");
1415 break;
1416 }
1417#endif /* CONFIG_NO_VLAN */
1418
1419 if (ap_sta_bind_vlan(hapd, sta, old_vlanid) < 0)
1420 break;
1421
1422 /* RFC 3580, Ch. 3.17 */
1423 if (session_timeout_set && termination_action ==
1424 RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) {
1425 sm->reAuthPeriod = session_timeout;
1426 } else if (session_timeout_set)
1427 ap_sta_session_timeout(hapd, sta, session_timeout);
1428
1429 sm->eap_if->aaaSuccess = TRUE;
1430 override_eapReq = 1;
1431 ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
1432 shared_secret_len);
1433 ieee802_1x_store_radius_class(hapd, sta, msg);
1434 ieee802_1x_update_sta_identity(hapd, sta, msg);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001435 ieee802_1x_update_sta_cui(hapd, sta, msg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001436 if (sm->eap_if->eapKeyAvailable &&
1437 wpa_auth_pmksa_add(sta->wpa_sm, sm->eapol_key_crypt,
1438 session_timeout_set ?
1439 (int) session_timeout : -1, sm) == 0) {
1440 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
1441 HOSTAPD_LEVEL_DEBUG,
1442 "Added PMKSA cache entry");
1443 }
1444 break;
1445 case RADIUS_CODE_ACCESS_REJECT:
1446 sm->eap_if->aaaFail = TRUE;
1447 override_eapReq = 1;
1448 break;
1449 case RADIUS_CODE_ACCESS_CHALLENGE:
1450 sm->eap_if->aaaEapReq = TRUE;
1451 if (session_timeout_set) {
1452 /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
1453 sm->eap_if->aaaMethodTimeout = session_timeout;
1454 hostapd_logger(hapd, sm->addr,
1455 HOSTAPD_MODULE_IEEE8021X,
1456 HOSTAPD_LEVEL_DEBUG,
1457 "using EAP timeout of %d seconds (from "
1458 "RADIUS)",
1459 sm->eap_if->aaaMethodTimeout);
1460 } else {
1461 /*
1462 * Use dynamic retransmission behavior per EAP
1463 * specification.
1464 */
1465 sm->eap_if->aaaMethodTimeout = 0;
1466 }
1467 break;
1468 }
1469
1470 ieee802_1x_decapsulate_radius(hapd, sta);
1471 if (override_eapReq)
1472 sm->eap_if->aaaEapReq = FALSE;
1473
1474 eapol_auth_step(sm);
1475
1476 return RADIUS_RX_QUEUED;
1477}
1478#endif /* CONFIG_NO_RADIUS */
1479
1480
1481void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
1482{
1483 struct eapol_state_machine *sm = sta->eapol_sm;
1484 if (sm == NULL)
1485 return;
1486
1487 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1488 HOSTAPD_LEVEL_DEBUG, "aborting authentication");
1489
1490#ifndef CONFIG_NO_RADIUS
1491 radius_msg_free(sm->last_recv_radius);
1492 sm->last_recv_radius = NULL;
1493#endif /* CONFIG_NO_RADIUS */
1494
1495 if (sm->eap_if->eapTimeout) {
1496 /*
1497 * Disconnect the STA since it did not reply to the last EAP
1498 * request and we cannot continue EAP processing (EAP-Failure
1499 * could only be sent if the EAP peer actually replied).
1500 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001501 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "EAP Timeout, STA " MACSTR,
1502 MAC2STR(sta->addr));
1503
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001504 sm->eap_if->portEnabled = FALSE;
1505 ap_sta_disconnect(hapd, sta, sta->addr,
1506 WLAN_REASON_PREV_AUTH_NOT_VALID);
1507 }
1508}
1509
1510
1511static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
1512{
1513 struct eapol_authenticator *eapol = hapd->eapol_auth;
1514
1515 if (hapd->conf->default_wep_key_len < 1)
1516 return 0;
1517
1518 os_free(eapol->default_wep_key);
1519 eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
1520 if (eapol->default_wep_key == NULL ||
1521 random_get_bytes(eapol->default_wep_key,
1522 hapd->conf->default_wep_key_len)) {
1523 printf("Could not generate random WEP key.\n");
1524 os_free(eapol->default_wep_key);
1525 eapol->default_wep_key = NULL;
1526 return -1;
1527 }
1528
1529 wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
1530 eapol->default_wep_key,
1531 hapd->conf->default_wep_key_len);
1532
1533 return 0;
1534}
1535
1536
1537static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
1538 struct sta_info *sta, void *ctx)
1539{
1540 if (sta->eapol_sm) {
1541 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1542 eapol_auth_step(sta->eapol_sm);
1543 }
1544 return 0;
1545}
1546
1547
1548static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
1549{
1550 struct hostapd_data *hapd = eloop_ctx;
1551 struct eapol_authenticator *eapol = hapd->eapol_auth;
1552
1553 if (eapol->default_wep_key_idx >= 3)
1554 eapol->default_wep_key_idx =
1555 hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
1556 else
1557 eapol->default_wep_key_idx++;
1558
1559 wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
1560 eapol->default_wep_key_idx);
1561
1562 if (ieee802_1x_rekey_broadcast(hapd)) {
1563 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1564 HOSTAPD_LEVEL_WARNING, "failed to generate a "
1565 "new broadcast key");
1566 os_free(eapol->default_wep_key);
1567 eapol->default_wep_key = NULL;
1568 return;
1569 }
1570
1571 /* TODO: Could setup key for RX here, but change default TX keyid only
1572 * after new broadcast key has been sent to all stations. */
1573 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
1574 broadcast_ether_addr,
1575 eapol->default_wep_key_idx, 1, NULL, 0,
1576 eapol->default_wep_key,
1577 hapd->conf->default_wep_key_len)) {
1578 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1579 HOSTAPD_LEVEL_WARNING, "failed to configure a "
1580 "new broadcast key");
1581 os_free(eapol->default_wep_key);
1582 eapol->default_wep_key = NULL;
1583 return;
1584 }
1585
1586 ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
1587
1588 if (hapd->conf->wep_rekeying_period > 0) {
1589 eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
1590 ieee802_1x_rekey, hapd, NULL);
1591 }
1592}
1593
1594
1595static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
1596 const u8 *data, size_t datalen)
1597{
1598#ifdef CONFIG_WPS
1599 struct sta_info *sta = sta_ctx;
1600
1601 if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
1602 WLAN_STA_MAYBE_WPS) {
1603 const u8 *identity;
1604 size_t identity_len;
1605 struct eapol_state_machine *sm = sta->eapol_sm;
1606
1607 identity = eap_get_identity(sm->eap, &identity_len);
1608 if (identity &&
1609 ((identity_len == WSC_ID_ENROLLEE_LEN &&
1610 os_memcmp(identity, WSC_ID_ENROLLEE,
1611 WSC_ID_ENROLLEE_LEN) == 0) ||
1612 (identity_len == WSC_ID_REGISTRAR_LEN &&
1613 os_memcmp(identity, WSC_ID_REGISTRAR,
1614 WSC_ID_REGISTRAR_LEN) == 0))) {
1615 wpa_printf(MSG_DEBUG, "WPS: WLAN_STA_MAYBE_WPS -> "
1616 "WLAN_STA_WPS");
1617 sta->flags |= WLAN_STA_WPS;
1618 }
1619 }
1620#endif /* CONFIG_WPS */
1621
1622 ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
1623}
1624
1625
1626static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
1627 const u8 *data, size_t datalen)
1628{
1629#ifndef CONFIG_NO_RADIUS
1630 struct hostapd_data *hapd = ctx;
1631 struct sta_info *sta = sta_ctx;
1632
1633 ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
1634#endif /* CONFIG_NO_RADIUS */
1635}
1636
1637
1638static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
1639 int preauth)
1640{
1641 struct hostapd_data *hapd = ctx;
1642 struct sta_info *sta = sta_ctx;
1643 if (preauth)
1644 rsn_preauth_finished(hapd, sta, success);
1645 else
1646 ieee802_1x_finished(hapd, sta, success);
1647}
1648
1649
1650static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
1651 size_t identity_len, int phase2,
1652 struct eap_user *user)
1653{
1654 struct hostapd_data *hapd = ctx;
1655 const struct hostapd_eap_user *eap_user;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001656 int i;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001657
1658 eap_user = hostapd_get_eap_user(hapd->conf, identity,
1659 identity_len, phase2);
1660 if (eap_user == NULL)
1661 return -1;
1662
1663 os_memset(user, 0, sizeof(*user));
1664 user->phase2 = phase2;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001665 for (i = 0; i < EAP_MAX_METHODS; i++) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001666 user->methods[i].vendor = eap_user->methods[i].vendor;
1667 user->methods[i].method = eap_user->methods[i].method;
1668 }
1669
1670 if (eap_user->password) {
1671 user->password = os_malloc(eap_user->password_len);
1672 if (user->password == NULL)
1673 return -1;
1674 os_memcpy(user->password, eap_user->password,
1675 eap_user->password_len);
1676 user->password_len = eap_user->password_len;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001677 user->password_hash = eap_user->password_hash;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001678 }
1679 user->force_version = eap_user->force_version;
1680 user->ttls_auth = eap_user->ttls_auth;
1681
1682 return 0;
1683}
1684
1685
1686static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
1687{
1688 struct hostapd_data *hapd = ctx;
1689 struct sta_info *sta;
1690 sta = ap_get_sta(hapd, addr);
1691 if (sta == NULL || sta->eapol_sm == NULL)
1692 return 0;
1693 return 1;
1694}
1695
1696
1697static void ieee802_1x_logger(void *ctx, const u8 *addr,
1698 eapol_logger_level level, const char *txt)
1699{
1700#ifndef CONFIG_NO_HOSTAPD_LOGGER
1701 struct hostapd_data *hapd = ctx;
1702 int hlevel;
1703
1704 switch (level) {
1705 case EAPOL_LOGGER_WARNING:
1706 hlevel = HOSTAPD_LEVEL_WARNING;
1707 break;
1708 case EAPOL_LOGGER_INFO:
1709 hlevel = HOSTAPD_LEVEL_INFO;
1710 break;
1711 case EAPOL_LOGGER_DEBUG:
1712 default:
1713 hlevel = HOSTAPD_LEVEL_DEBUG;
1714 break;
1715 }
1716
1717 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
1718 txt);
1719#endif /* CONFIG_NO_HOSTAPD_LOGGER */
1720}
1721
1722
1723static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
1724 int authorized)
1725{
1726 struct hostapd_data *hapd = ctx;
1727 struct sta_info *sta = sta_ctx;
1728 ieee802_1x_set_sta_authorized(hapd, sta, authorized);
1729}
1730
1731
1732static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
1733{
1734 struct hostapd_data *hapd = ctx;
1735 struct sta_info *sta = sta_ctx;
1736 ieee802_1x_abort_auth(hapd, sta);
1737}
1738
1739
1740static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
1741{
1742 struct hostapd_data *hapd = ctx;
1743 struct sta_info *sta = sta_ctx;
1744 ieee802_1x_tx_key(hapd, sta);
1745}
1746
1747
1748static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
1749 enum eapol_event type)
1750{
1751 /* struct hostapd_data *hapd = ctx; */
1752 struct sta_info *sta = sta_ctx;
1753 switch (type) {
1754 case EAPOL_AUTH_SM_CHANGE:
1755 wpa_auth_sm_notify(sta->wpa_sm);
1756 break;
1757 case EAPOL_AUTH_REAUTHENTICATE:
1758 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
1759 break;
1760 }
1761}
1762
1763
1764int ieee802_1x_init(struct hostapd_data *hapd)
1765{
1766 int i;
1767 struct eapol_auth_config conf;
1768 struct eapol_auth_cb cb;
1769
1770 os_memset(&conf, 0, sizeof(conf));
1771 conf.ctx = hapd;
1772 conf.eap_reauth_period = hapd->conf->eap_reauth_period;
1773 conf.wpa = hapd->conf->wpa;
1774 conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
1775 conf.eap_server = hapd->conf->eap_server;
1776 conf.ssl_ctx = hapd->ssl_ctx;
1777 conf.msg_ctx = hapd->msg_ctx;
1778 conf.eap_sim_db_priv = hapd->eap_sim_db_priv;
1779 conf.eap_req_id_text = hapd->conf->eap_req_id_text;
1780 conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
1781 conf.pac_opaque_encr_key = hapd->conf->pac_opaque_encr_key;
1782 conf.eap_fast_a_id = hapd->conf->eap_fast_a_id;
1783 conf.eap_fast_a_id_len = hapd->conf->eap_fast_a_id_len;
1784 conf.eap_fast_a_id_info = hapd->conf->eap_fast_a_id_info;
1785 conf.eap_fast_prov = hapd->conf->eap_fast_prov;
1786 conf.pac_key_lifetime = hapd->conf->pac_key_lifetime;
1787 conf.pac_key_refresh_time = hapd->conf->pac_key_refresh_time;
1788 conf.eap_sim_aka_result_ind = hapd->conf->eap_sim_aka_result_ind;
1789 conf.tnc = hapd->conf->tnc;
1790 conf.wps = hapd->wps;
1791 conf.fragment_size = hapd->conf->fragment_size;
1792 conf.pwd_group = hapd->conf->pwd_group;
Jouni Malinen87fd2792011-05-16 18:35:42 +03001793 conf.pbc_in_m1 = hapd->conf->pbc_in_m1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001794
1795 os_memset(&cb, 0, sizeof(cb));
1796 cb.eapol_send = ieee802_1x_eapol_send;
1797 cb.aaa_send = ieee802_1x_aaa_send;
1798 cb.finished = _ieee802_1x_finished;
1799 cb.get_eap_user = ieee802_1x_get_eap_user;
1800 cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
1801 cb.logger = ieee802_1x_logger;
1802 cb.set_port_authorized = ieee802_1x_set_port_authorized;
1803 cb.abort_auth = _ieee802_1x_abort_auth;
1804 cb.tx_key = _ieee802_1x_tx_key;
1805 cb.eapol_event = ieee802_1x_eapol_event;
1806
1807 hapd->eapol_auth = eapol_auth_init(&conf, &cb);
1808 if (hapd->eapol_auth == NULL)
1809 return -1;
1810
1811 if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
1812 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
1813 return -1;
1814
1815#ifndef CONFIG_NO_RADIUS
1816 if (radius_client_register(hapd->radius, RADIUS_AUTH,
1817 ieee802_1x_receive_auth, hapd))
1818 return -1;
1819#endif /* CONFIG_NO_RADIUS */
1820
1821 if (hapd->conf->default_wep_key_len) {
1822 for (i = 0; i < 4; i++)
1823 hostapd_drv_set_key(hapd->conf->iface, hapd,
1824 WPA_ALG_NONE, NULL, i, 0, NULL, 0,
1825 NULL, 0);
1826
1827 ieee802_1x_rekey(hapd, NULL);
1828
1829 if (hapd->eapol_auth->default_wep_key == NULL)
1830 return -1;
1831 }
1832
1833 return 0;
1834}
1835
1836
1837void ieee802_1x_deinit(struct hostapd_data *hapd)
1838{
1839 eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
1840
1841 if (hapd->driver != NULL &&
1842 (hapd->conf->ieee802_1x || hapd->conf->wpa))
1843 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
1844
1845 eapol_auth_deinit(hapd->eapol_auth);
1846 hapd->eapol_auth = NULL;
1847}
1848
1849
1850int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
1851 const u8 *buf, size_t len, int ack)
1852{
1853 struct ieee80211_hdr *hdr;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001854 u8 *pos;
1855 const unsigned char rfc1042_hdr[ETH_ALEN] =
1856 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
1857
1858 if (sta == NULL)
1859 return -1;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001860 if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001861 return 0;
1862
1863 hdr = (struct ieee80211_hdr *) buf;
1864 pos = (u8 *) (hdr + 1);
1865 if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
1866 return 0;
1867 pos += sizeof(rfc1042_hdr);
1868 if (WPA_GET_BE16(pos) != ETH_P_PAE)
1869 return 0;
1870 pos += 2;
1871
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001872 return ieee802_1x_eapol_tx_status(hapd, sta, pos, buf + len - pos,
1873 ack);
1874}
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001875
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001876
1877int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
1878 const u8 *buf, int len, int ack)
1879{
1880 const struct ieee802_1x_hdr *xhdr =
1881 (const struct ieee802_1x_hdr *) buf;
1882 const u8 *pos = buf + sizeof(*xhdr);
1883 struct ieee802_1x_eapol_key *key;
1884
1885 if (len < (int) sizeof(*xhdr))
1886 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001887 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR " TX status - version=%d "
1888 "type=%d length=%d - ack=%d",
1889 MAC2STR(sta->addr), xhdr->version, xhdr->type,
1890 be_to_host16(xhdr->length), ack);
1891
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001892 if (xhdr->type != IEEE802_1X_TYPE_EAPOL_KEY)
1893 return 0;
1894
1895 if (pos + sizeof(struct wpa_eapol_key) <= buf + len) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001896 const struct wpa_eapol_key *wpa;
1897 wpa = (const struct wpa_eapol_key *) pos;
1898 if (wpa->type == EAPOL_KEY_TYPE_RSN ||
1899 wpa->type == EAPOL_KEY_TYPE_WPA)
1900 wpa_auth_eapol_key_tx_status(hapd->wpa_auth,
1901 sta->wpa_sm, ack);
1902 }
1903
1904 /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
1905 * or Authenticator state machines, but EAPOL-Key packets are not
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001906 * retransmitted in case of failure. Try to re-send failed EAPOL-Key
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001907 * packets couple of times because otherwise STA keys become
1908 * unsynchronized with AP. */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001909 if (!ack && pos + sizeof(*key) <= buf + len) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001910 key = (struct ieee802_1x_eapol_key *) pos;
1911 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1912 HOSTAPD_LEVEL_DEBUG, "did not Ack EAPOL-Key "
1913 "frame (%scast index=%d)",
1914 key->key_index & BIT(7) ? "uni" : "broad",
1915 key->key_index & ~BIT(7));
1916 /* TODO: re-send EAPOL-Key couple of times (with short delay
1917 * between them?). If all attempt fail, report error and
1918 * deauthenticate STA so that it will get new keys when
1919 * authenticating again (e.g., after returning in range).
1920 * Separate limit/transmit state needed both for unicast and
1921 * broadcast keys(?) */
1922 }
1923 /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
1924 * to here and change the key only if the EAPOL-Key packet was Acked.
1925 */
1926
1927 return 1;
1928}
1929
1930
1931u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
1932{
1933 if (sm == NULL || sm->identity == NULL)
1934 return NULL;
1935
1936 *len = sm->identity_len;
1937 return sm->identity;
1938}
1939
1940
1941u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
1942 int idx)
1943{
1944 if (sm == NULL || sm->radius_class.attr == NULL ||
1945 idx >= (int) sm->radius_class.count)
1946 return NULL;
1947
1948 *len = sm->radius_class.attr[idx].len;
1949 return sm->radius_class.attr[idx].data;
1950}
1951
1952
Dmitry Shmidt04949592012-07-19 12:16:46 -07001953struct wpabuf * ieee802_1x_get_radius_cui(struct eapol_state_machine *sm)
1954{
1955 if (sm == NULL)
1956 return NULL;
1957 return sm->radius_cui;
1958}
1959
1960
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001961const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
1962{
Jouni Malinen75ecf522011-06-27 15:19:46 -07001963 *len = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001964 if (sm == NULL)
1965 return NULL;
1966
1967 *len = sm->eap_if->eapKeyDataLen;
1968 return sm->eap_if->eapKeyData;
1969}
1970
1971
1972void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
1973 int enabled)
1974{
1975 if (sm == NULL)
1976 return;
1977 sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
1978 eapol_auth_step(sm);
1979}
1980
1981
1982void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
1983 int valid)
1984{
1985 if (sm == NULL)
1986 return;
1987 sm->portValid = valid ? TRUE : FALSE;
1988 eapol_auth_step(sm);
1989}
1990
1991
1992void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
1993{
1994 if (sm == NULL)
1995 return;
1996 if (pre_auth)
1997 sm->flags |= EAPOL_SM_PREAUTH;
1998 else
1999 sm->flags &= ~EAPOL_SM_PREAUTH;
2000}
2001
2002
2003static const char * bool_txt(Boolean bool)
2004{
2005 return bool ? "TRUE" : "FALSE";
2006}
2007
2008
2009int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2010{
2011 /* TODO */
2012 return 0;
2013}
2014
2015
2016int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2017 char *buf, size_t buflen)
2018{
2019 int len = 0, ret;
2020 struct eapol_state_machine *sm = sta->eapol_sm;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002021 struct os_time t;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002022
2023 if (sm == NULL)
2024 return 0;
2025
2026 ret = os_snprintf(buf + len, buflen - len,
2027 "dot1xPaePortNumber=%d\n"
2028 "dot1xPaePortProtocolVersion=%d\n"
2029 "dot1xPaePortCapabilities=1\n"
2030 "dot1xPaePortInitialize=%d\n"
2031 "dot1xPaePortReauthenticate=FALSE\n",
2032 sta->aid,
2033 EAPOL_VERSION,
2034 sm->initialize);
2035 if (ret < 0 || (size_t) ret >= buflen - len)
2036 return len;
2037 len += ret;
2038
2039 /* dot1xAuthConfigTable */
2040 ret = os_snprintf(buf + len, buflen - len,
2041 "dot1xAuthPaeState=%d\n"
2042 "dot1xAuthBackendAuthState=%d\n"
2043 "dot1xAuthAdminControlledDirections=%d\n"
2044 "dot1xAuthOperControlledDirections=%d\n"
2045 "dot1xAuthAuthControlledPortStatus=%d\n"
2046 "dot1xAuthAuthControlledPortControl=%d\n"
2047 "dot1xAuthQuietPeriod=%u\n"
2048 "dot1xAuthServerTimeout=%u\n"
2049 "dot1xAuthReAuthPeriod=%u\n"
2050 "dot1xAuthReAuthEnabled=%s\n"
2051 "dot1xAuthKeyTxEnabled=%s\n",
2052 sm->auth_pae_state + 1,
2053 sm->be_auth_state + 1,
2054 sm->adminControlledDirections,
2055 sm->operControlledDirections,
2056 sm->authPortStatus,
2057 sm->portControl,
2058 sm->quietPeriod,
2059 sm->serverTimeout,
2060 sm->reAuthPeriod,
2061 bool_txt(sm->reAuthEnabled),
2062 bool_txt(sm->keyTxEnabled));
2063 if (ret < 0 || (size_t) ret >= buflen - len)
2064 return len;
2065 len += ret;
2066
2067 /* dot1xAuthStatsTable */
2068 ret = os_snprintf(buf + len, buflen - len,
2069 "dot1xAuthEapolFramesRx=%u\n"
2070 "dot1xAuthEapolFramesTx=%u\n"
2071 "dot1xAuthEapolStartFramesRx=%u\n"
2072 "dot1xAuthEapolLogoffFramesRx=%u\n"
2073 "dot1xAuthEapolRespIdFramesRx=%u\n"
2074 "dot1xAuthEapolRespFramesRx=%u\n"
2075 "dot1xAuthEapolReqIdFramesTx=%u\n"
2076 "dot1xAuthEapolReqFramesTx=%u\n"
2077 "dot1xAuthInvalidEapolFramesRx=%u\n"
2078 "dot1xAuthEapLengthErrorFramesRx=%u\n"
2079 "dot1xAuthLastEapolFrameVersion=%u\n"
2080 "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
2081 sm->dot1xAuthEapolFramesRx,
2082 sm->dot1xAuthEapolFramesTx,
2083 sm->dot1xAuthEapolStartFramesRx,
2084 sm->dot1xAuthEapolLogoffFramesRx,
2085 sm->dot1xAuthEapolRespIdFramesRx,
2086 sm->dot1xAuthEapolRespFramesRx,
2087 sm->dot1xAuthEapolReqIdFramesTx,
2088 sm->dot1xAuthEapolReqFramesTx,
2089 sm->dot1xAuthInvalidEapolFramesRx,
2090 sm->dot1xAuthEapLengthErrorFramesRx,
2091 sm->dot1xAuthLastEapolFrameVersion,
2092 MAC2STR(sm->addr));
2093 if (ret < 0 || (size_t) ret >= buflen - len)
2094 return len;
2095 len += ret;
2096
2097 /* dot1xAuthDiagTable */
2098 ret = os_snprintf(buf + len, buflen - len,
2099 "dot1xAuthEntersConnecting=%u\n"
2100 "dot1xAuthEapLogoffsWhileConnecting=%u\n"
2101 "dot1xAuthEntersAuthenticating=%u\n"
2102 "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
2103 "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
2104 "dot1xAuthAuthFailWhileAuthenticating=%u\n"
2105 "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
2106 "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
2107 "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
2108 "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
2109 "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
2110 "dot1xAuthBackendResponses=%u\n"
2111 "dot1xAuthBackendAccessChallenges=%u\n"
2112 "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
2113 "dot1xAuthBackendAuthSuccesses=%u\n"
2114 "dot1xAuthBackendAuthFails=%u\n",
2115 sm->authEntersConnecting,
2116 sm->authEapLogoffsWhileConnecting,
2117 sm->authEntersAuthenticating,
2118 sm->authAuthSuccessesWhileAuthenticating,
2119 sm->authAuthTimeoutsWhileAuthenticating,
2120 sm->authAuthFailWhileAuthenticating,
2121 sm->authAuthEapStartsWhileAuthenticating,
2122 sm->authAuthEapLogoffWhileAuthenticating,
2123 sm->authAuthReauthsWhileAuthenticated,
2124 sm->authAuthEapStartsWhileAuthenticated,
2125 sm->authAuthEapLogoffWhileAuthenticated,
2126 sm->backendResponses,
2127 sm->backendAccessChallenges,
2128 sm->backendOtherRequestsToSupplicant,
2129 sm->backendAuthSuccesses,
2130 sm->backendAuthFails);
2131 if (ret < 0 || (size_t) ret >= buflen - len)
2132 return len;
2133 len += ret;
2134
2135 /* dot1xAuthSessionStatsTable */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002136 os_get_time(&t);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002137 ret = os_snprintf(buf + len, buflen - len,
2138 /* TODO: dot1xAuthSessionOctetsRx */
2139 /* TODO: dot1xAuthSessionOctetsTx */
2140 /* TODO: dot1xAuthSessionFramesRx */
2141 /* TODO: dot1xAuthSessionFramesTx */
2142 "dot1xAuthSessionId=%08X-%08X\n"
2143 "dot1xAuthSessionAuthenticMethod=%d\n"
2144 "dot1xAuthSessionTime=%u\n"
2145 "dot1xAuthSessionTerminateCause=999\n"
2146 "dot1xAuthSessionUserName=%s\n",
2147 sta->acct_session_id_hi, sta->acct_session_id_lo,
2148 (wpa_key_mgmt_wpa_ieee8021x(
2149 wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
2150 1 : 2,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002151 (unsigned int) (t.sec - sta->acct_session_start),
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002152 sm->identity);
2153 if (ret < 0 || (size_t) ret >= buflen - len)
2154 return len;
2155 len += ret;
2156
2157 return len;
2158}
2159
2160
2161static void ieee802_1x_finished(struct hostapd_data *hapd,
2162 struct sta_info *sta, int success)
2163{
2164 const u8 *key;
2165 size_t len;
2166 /* TODO: get PMKLifetime from WPA parameters */
2167 static const int dot11RSNAConfigPMKLifetime = 43200;
2168
2169 key = ieee802_1x_get_key(sta->eapol_sm, &len);
2170 if (success && key && len >= PMK_LEN &&
2171 wpa_auth_pmksa_add(sta->wpa_sm, key, dot11RSNAConfigPMKLifetime,
2172 sta->eapol_sm) == 0) {
2173 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
2174 HOSTAPD_LEVEL_DEBUG,
2175 "Added PMKSA cache entry (IEEE 802.1X)");
2176 }
2177
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002178 if (!success) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002179 /*
2180 * Many devices require deauthentication after WPS provisioning
2181 * and some may not be be able to do that themselves, so
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002182 * disconnect the client here. In addition, this may also
2183 * benefit IEEE 802.1X/EAPOL authentication cases, too since
2184 * the EAPOL PAE state machine would remain in HELD state for
2185 * considerable amount of time and some EAP methods, like
2186 * EAP-FAST with anonymous provisioning, may require another
2187 * EAPOL authentication to be started to complete connection.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002188 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002189 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "IEEE 802.1X: Force "
2190 "disconnection after EAP-Failure");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002191 /* Add a small sleep to increase likelihood of previously
2192 * requested EAP-Failure TX getting out before this should the
2193 * driver reorder operations.
2194 */
2195 os_sleep(0, 10000);
Dmitry Shmidtad266fb2012-08-24 17:03:35 -07002196#ifndef ANDROID_P2P
2197 /* We need not do this for driver. For AP-SME flags if we send this disassoc,
2198 * the p2p_client is gettig disassoc after it has completed the assoc
2199 */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002200 ap_sta_disconnect(hapd, sta, sta->addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002201 WLAN_REASON_IEEE_802_1X_AUTH_FAILED);
Dmitry Shmidtad266fb2012-08-24 17:03:35 -07002202#endif
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002203 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002204}