Line data Source code
1 : /*
2 : * hostapd / IEEE 802.1X-2004 Authenticator
3 : * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
4 : *
5 : * This software may be distributed under the terms of the BSD license.
6 : * See README for more details.
7 : */
8 :
9 : #include "utils/includes.h"
10 :
11 : #include "utils/common.h"
12 : #include "utils/eloop.h"
13 : #include "crypto/md5.h"
14 : #include "crypto/crypto.h"
15 : #include "crypto/random.h"
16 : #include "common/ieee802_11_defs.h"
17 : #include "radius/radius.h"
18 : #include "radius/radius_client.h"
19 : #include "eap_server/eap.h"
20 : #include "eap_common/eap_wsc_common.h"
21 : #include "eapol_auth/eapol_auth_sm.h"
22 : #include "eapol_auth/eapol_auth_sm_i.h"
23 : #include "p2p/p2p.h"
24 : #include "hostapd.h"
25 : #include "accounting.h"
26 : #include "sta_info.h"
27 : #include "wpa_auth.h"
28 : #include "preauth_auth.h"
29 : #include "pmksa_cache_auth.h"
30 : #include "ap_config.h"
31 : #include "ap_drv_ops.h"
32 : #include "wps_hostapd.h"
33 : #include "hs20.h"
34 : #include "ieee802_1x.h"
35 :
36 :
37 : static void ieee802_1x_finished(struct hostapd_data *hapd,
38 : struct sta_info *sta, int success,
39 : int remediation);
40 :
41 :
42 6564 : static void ieee802_1x_send(struct hostapd_data *hapd, struct sta_info *sta,
43 : u8 type, const u8 *data, size_t datalen)
44 : {
45 : u8 *buf;
46 : struct ieee802_1x_hdr *xhdr;
47 : size_t len;
48 6564 : int encrypt = 0;
49 :
50 6564 : len = sizeof(*xhdr) + datalen;
51 6564 : buf = os_zalloc(len);
52 6564 : if (buf == NULL) {
53 3 : wpa_printf(MSG_ERROR, "malloc() failed for "
54 : "ieee802_1x_send(len=%lu)",
55 : (unsigned long) len);
56 6567 : return;
57 : }
58 :
59 6561 : xhdr = (struct ieee802_1x_hdr *) buf;
60 6561 : xhdr->version = hapd->conf->eapol_version;
61 6561 : xhdr->type = type;
62 6561 : xhdr->length = host_to_be16(datalen);
63 :
64 6561 : if (datalen > 0 && data != NULL)
65 6561 : os_memcpy(xhdr + 1, data, datalen);
66 :
67 6561 : if (wpa_auth_pairwise_set(sta->wpa_sm))
68 331 : encrypt = 1;
69 : #ifdef CONFIG_TESTING_OPTIONS
70 6561 : if (hapd->ext_eapol_frame_io) {
71 13 : size_t hex_len = 2 * len + 1;
72 13 : char *hex = os_malloc(hex_len);
73 :
74 13 : if (hex) {
75 13 : wpa_snprintf_hex(hex, hex_len, buf, len);
76 78 : wpa_msg(hapd->msg_ctx, MSG_INFO,
77 : "EAPOL-TX " MACSTR " %s",
78 78 : MAC2STR(sta->addr), hex);
79 13 : os_free(hex);
80 : }
81 : } else
82 : #endif /* CONFIG_TESTING_OPTIONS */
83 6548 : if (sta->flags & WLAN_STA_PREAUTH) {
84 10 : rsn_preauth_send(hapd, sta, buf, len);
85 : } else {
86 13076 : hostapd_drv_hapd_send_eapol(
87 6538 : hapd, sta->addr, buf, len,
88 : encrypt, hostapd_sta_flags_to_drv(sta->flags));
89 : }
90 :
91 6561 : os_free(buf);
92 : }
93 :
94 :
95 4072 : void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
96 : struct sta_info *sta, int authorized)
97 : {
98 : int res;
99 :
100 4072 : if (sta->flags & WLAN_STA_PREAUTH)
101 4078 : return;
102 :
103 4066 : if (authorized) {
104 1295 : ap_sta_set_authorized(hapd, sta, 1);
105 1295 : res = hostapd_set_authorized(hapd, sta, 1);
106 1295 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
107 : HOSTAPD_LEVEL_DEBUG, "authorizing port");
108 : } else {
109 2771 : ap_sta_set_authorized(hapd, sta, 0);
110 2771 : res = hostapd_set_authorized(hapd, sta, 0);
111 2771 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
112 : HOSTAPD_LEVEL_DEBUG, "unauthorizing port");
113 : }
114 :
115 4066 : if (res && errno != ENOENT) {
116 7 : wpa_printf(MSG_DEBUG, "Could not set station " MACSTR
117 : " flags for kernel driver (errno=%d).",
118 7 : MAC2STR(sta->addr), errno);
119 : }
120 :
121 4066 : if (authorized) {
122 1295 : os_get_reltime(&sta->connected_time);
123 1295 : accounting_sta_start(hapd, sta);
124 : }
125 : }
126 :
127 :
128 4 : static void ieee802_1x_tx_key_one(struct hostapd_data *hapd,
129 : struct sta_info *sta,
130 : int idx, int broadcast,
131 : u8 *key_data, size_t key_len)
132 : {
133 : u8 *buf, *ekey;
134 : struct ieee802_1x_hdr *hdr;
135 : struct ieee802_1x_eapol_key *key;
136 : size_t len, ekey_len;
137 4 : struct eapol_state_machine *sm = sta->eapol_sm;
138 :
139 4 : if (sm == NULL)
140 0 : return;
141 :
142 4 : len = sizeof(*key) + key_len;
143 4 : buf = os_zalloc(sizeof(*hdr) + len);
144 4 : if (buf == NULL)
145 0 : return;
146 :
147 4 : hdr = (struct ieee802_1x_hdr *) buf;
148 4 : key = (struct ieee802_1x_eapol_key *) (hdr + 1);
149 4 : key->type = EAPOL_KEY_TYPE_RC4;
150 4 : WPA_PUT_BE16(key->key_length, key_len);
151 4 : wpa_get_ntp_timestamp(key->replay_counter);
152 :
153 4 : if (random_get_bytes(key->key_iv, sizeof(key->key_iv))) {
154 0 : wpa_printf(MSG_ERROR, "Could not get random numbers");
155 0 : os_free(buf);
156 0 : return;
157 : }
158 :
159 4 : key->key_index = idx | (broadcast ? 0 : BIT(7));
160 4 : if (hapd->conf->eapol_key_index_workaround) {
161 : /* According to some information, WinXP Supplicant seems to
162 : * interpret bit7 as an indication whether the key is to be
163 : * activated, so make it possible to enable workaround that
164 : * sets this bit for all keys. */
165 0 : key->key_index |= BIT(7);
166 : }
167 :
168 : /* Key is encrypted using "Key-IV + MSK[0..31]" as the RC4-key and
169 : * MSK[32..63] is used to sign the message. */
170 4 : if (sm->eap_if->eapKeyData == NULL || sm->eap_if->eapKeyDataLen < 64) {
171 0 : wpa_printf(MSG_ERROR, "No eapKeyData available for encrypting "
172 : "and signing EAPOL-Key");
173 0 : os_free(buf);
174 0 : return;
175 : }
176 4 : os_memcpy((u8 *) (key + 1), key_data, key_len);
177 4 : ekey_len = sizeof(key->key_iv) + 32;
178 4 : ekey = os_malloc(ekey_len);
179 4 : if (ekey == NULL) {
180 0 : wpa_printf(MSG_ERROR, "Could not encrypt key");
181 0 : os_free(buf);
182 0 : return;
183 : }
184 4 : os_memcpy(ekey, key->key_iv, sizeof(key->key_iv));
185 4 : os_memcpy(ekey + sizeof(key->key_iv), sm->eap_if->eapKeyData, 32);
186 4 : rc4_skip(ekey, ekey_len, 0, (u8 *) (key + 1), key_len);
187 4 : os_free(ekey);
188 :
189 : /* This header is needed here for HMAC-MD5, but it will be regenerated
190 : * in ieee802_1x_send() */
191 4 : hdr->version = hapd->conf->eapol_version;
192 4 : hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
193 4 : hdr->length = host_to_be16(len);
194 4 : hmac_md5(sm->eap_if->eapKeyData + 32, 32, buf, sizeof(*hdr) + len,
195 4 : key->key_signature);
196 :
197 28 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key to " MACSTR
198 24 : " (%s index=%d)", MAC2STR(sm->addr),
199 : broadcast ? "broadcast" : "unicast", idx);
200 4 : ieee802_1x_send(hapd, sta, IEEE802_1X_TYPE_EAPOL_KEY, (u8 *) key, len);
201 4 : if (sta->eapol_sm)
202 4 : sta->eapol_sm->dot1xAuthEapolFramesTx++;
203 4 : os_free(buf);
204 : }
205 :
206 :
207 2 : void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta)
208 : {
209 2 : struct eapol_authenticator *eapol = hapd->eapol_auth;
210 2 : struct eapol_state_machine *sm = sta->eapol_sm;
211 :
212 2 : if (sm == NULL || !sm->eap_if->eapKeyData)
213 0 : return;
214 :
215 12 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key(s) to " MACSTR,
216 12 : MAC2STR(sta->addr));
217 :
218 : #ifndef CONFIG_NO_VLAN
219 2 : if (sta->vlan_id > 0 && sta->vlan_id <= MAX_VLAN_ID) {
220 0 : wpa_printf(MSG_ERROR, "Using WEP with vlans is not supported.");
221 0 : return;
222 : }
223 : #endif /* CONFIG_NO_VLAN */
224 :
225 2 : if (eapol->default_wep_key) {
226 2 : ieee802_1x_tx_key_one(hapd, sta, eapol->default_wep_key_idx, 1,
227 : eapol->default_wep_key,
228 2 : hapd->conf->default_wep_key_len);
229 : }
230 :
231 2 : if (hapd->conf->individual_wep_key_len > 0) {
232 : u8 *ikey;
233 2 : ikey = os_malloc(hapd->conf->individual_wep_key_len);
234 4 : if (ikey == NULL ||
235 2 : random_get_bytes(ikey, hapd->conf->individual_wep_key_len))
236 : {
237 0 : wpa_printf(MSG_ERROR, "Could not generate random "
238 : "individual WEP key.");
239 0 : os_free(ikey);
240 0 : return;
241 : }
242 :
243 2 : wpa_hexdump_key(MSG_DEBUG, "Individual WEP key",
244 2 : ikey, hapd->conf->individual_wep_key_len);
245 :
246 2 : ieee802_1x_tx_key_one(hapd, sta, 0, 0, ikey,
247 2 : hapd->conf->individual_wep_key_len);
248 :
249 : /* TODO: set encryption in TX callback, i.e., only after STA
250 : * has ACKed EAPOL-Key frame */
251 4 : if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
252 2 : sta->addr, 0, 1, NULL, 0, ikey,
253 2 : hapd->conf->individual_wep_key_len)) {
254 0 : wpa_printf(MSG_ERROR, "Could not set individual WEP "
255 : "encryption.");
256 : }
257 :
258 2 : os_free(ikey);
259 : }
260 : }
261 :
262 :
263 3662 : const char *radius_mode_txt(struct hostapd_data *hapd)
264 : {
265 3662 : switch (hapd->iface->conf->hw_mode) {
266 : case HOSTAPD_MODE_IEEE80211AD:
267 0 : return "802.11ad";
268 : case HOSTAPD_MODE_IEEE80211A:
269 0 : return "802.11a";
270 : case HOSTAPD_MODE_IEEE80211G:
271 3662 : return "802.11g";
272 : case HOSTAPD_MODE_IEEE80211B:
273 : default:
274 0 : return "802.11b";
275 : }
276 : }
277 :
278 :
279 7324 : int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta)
280 : {
281 : int i;
282 7324 : u8 rate = 0;
283 :
284 95212 : for (i = 0; i < sta->supported_rates_len; i++)
285 87888 : if ((sta->supported_rates[i] & 0x7f) > rate)
286 73240 : rate = sta->supported_rates[i] & 0x7f;
287 :
288 7324 : return rate;
289 : }
290 :
291 :
292 : #ifndef CONFIG_NO_RADIUS
293 3291 : static void ieee802_1x_learn_identity(struct hostapd_data *hapd,
294 : struct eapol_state_machine *sm,
295 : const u8 *eap, size_t len)
296 : {
297 : const u8 *identity;
298 : size_t identity_len;
299 3291 : const struct eap_hdr *hdr = (const struct eap_hdr *) eap;
300 :
301 6582 : if (len <= sizeof(struct eap_hdr) ||
302 6567 : (hdr->code == EAP_CODE_RESPONSE &&
303 4210 : eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY) ||
304 949 : (hdr->code == EAP_CODE_INITIATE &&
305 949 : eap[sizeof(struct eap_hdr)] != EAP_ERP_TYPE_REAUTH) ||
306 949 : (hdr->code != EAP_CODE_RESPONSE &&
307 15 : hdr->code != EAP_CODE_INITIATE))
308 4715 : return;
309 :
310 934 : identity = eap_get_identity(sm->eap, &identity_len);
311 934 : if (identity == NULL)
312 0 : return;
313 :
314 : /* Save station identity for future RADIUS packets */
315 934 : os_free(sm->identity);
316 934 : sm->identity = (u8 *) dup_binstr(identity, identity_len);
317 934 : if (sm->identity == NULL) {
318 1 : sm->identity_len = 0;
319 1 : return;
320 : }
321 :
322 933 : sm->identity_len = identity_len;
323 933 : hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
324 : HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity);
325 933 : sm->dot1xAuthEapolRespIdFramesRx++;
326 : }
327 :
328 :
329 3614 : static int add_common_radius_sta_attr_rsn(struct hostapd_data *hapd,
330 : struct hostapd_radius_attr *req_attr,
331 : struct sta_info *sta,
332 : struct radius_msg *msg)
333 : {
334 : u32 suite;
335 : int ver, val;
336 :
337 3614 : ver = wpa_auth_sta_wpa_version(sta->wpa_sm);
338 3614 : val = wpa_auth_get_pairwise(sta->wpa_sm);
339 3614 : suite = wpa_cipher_to_suite(ver, val);
340 7228 : if (val != -1 &&
341 3614 : !hostapd_config_get_radius_attr(req_attr,
342 3614 : RADIUS_ATTR_WLAN_PAIRWISE_CIPHER) &&
343 3614 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_PAIRWISE_CIPHER,
344 : suite)) {
345 0 : wpa_printf(MSG_ERROR, "Could not add WLAN-Pairwise-Cipher");
346 0 : return -1;
347 : }
348 :
349 3614 : suite = wpa_cipher_to_suite((hapd->conf->wpa & 0x2) ?
350 : WPA_PROTO_RSN : WPA_PROTO_WPA,
351 3614 : hapd->conf->wpa_group);
352 3614 : if (!hostapd_config_get_radius_attr(req_attr,
353 3614 : RADIUS_ATTR_WLAN_GROUP_CIPHER) &&
354 3614 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_GROUP_CIPHER,
355 : suite)) {
356 0 : wpa_printf(MSG_ERROR, "Could not add WLAN-Group-Cipher");
357 0 : return -1;
358 : }
359 :
360 3614 : val = wpa_auth_sta_key_mgmt(sta->wpa_sm);
361 3614 : suite = wpa_akm_to_suite(val);
362 7228 : if (val != -1 &&
363 3614 : !hostapd_config_get_radius_attr(req_attr,
364 3614 : RADIUS_ATTR_WLAN_AKM_SUITE) &&
365 3614 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_AKM_SUITE,
366 : suite)) {
367 0 : wpa_printf(MSG_ERROR, "Could not add WLAN-AKM-Suite");
368 0 : return -1;
369 : }
370 :
371 : #ifdef CONFIG_IEEE80211W
372 3614 : if (hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
373 596 : suite = wpa_cipher_to_suite(WPA_PROTO_RSN,
374 596 : hapd->conf->group_mgmt_cipher);
375 596 : if (!hostapd_config_get_radius_attr(
376 596 : req_attr, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER) &&
377 596 : !radius_msg_add_attr_int32(
378 : msg, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER, suite)) {
379 0 : wpa_printf(MSG_ERROR,
380 : "Could not add WLAN-Group-Mgmt-Cipher");
381 0 : return -1;
382 : }
383 : }
384 : #endif /* CONFIG_IEEE80211W */
385 :
386 3614 : return 0;
387 : }
388 :
389 :
390 3668 : static int add_common_radius_sta_attr(struct hostapd_data *hapd,
391 : struct hostapd_radius_attr *req_attr,
392 : struct sta_info *sta,
393 : struct radius_msg *msg)
394 : {
395 : char buf[128];
396 :
397 3668 : if (!hostapd_config_get_radius_attr(req_attr,
398 3668 : RADIUS_ATTR_NAS_PORT) &&
399 3668 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
400 0 : wpa_printf(MSG_ERROR, "Could not add NAS-Port");
401 0 : return -1;
402 : }
403 :
404 22008 : os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
405 22008 : MAC2STR(sta->addr));
406 3668 : buf[sizeof(buf) - 1] = '\0';
407 3668 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
408 : (u8 *) buf, os_strlen(buf))) {
409 0 : wpa_printf(MSG_ERROR, "Could not add Calling-Station-Id");
410 0 : return -1;
411 : }
412 :
413 3668 : if (sta->flags & WLAN_STA_PREAUTH) {
414 6 : os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
415 : sizeof(buf));
416 : } else {
417 10986 : os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
418 3662 : radius_sta_rate(hapd, sta) / 2,
419 3662 : (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
420 : radius_mode_txt(hapd));
421 3662 : buf[sizeof(buf) - 1] = '\0';
422 : }
423 3668 : if (!hostapd_config_get_radius_attr(req_attr,
424 3653 : RADIUS_ATTR_CONNECT_INFO) &&
425 3653 : !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
426 : (u8 *) buf, os_strlen(buf))) {
427 0 : wpa_printf(MSG_ERROR, "Could not add Connect-Info");
428 0 : return -1;
429 : }
430 :
431 3668 : if (sta->acct_session_id_hi || sta->acct_session_id_lo) {
432 3668 : os_snprintf(buf, sizeof(buf), "%08X-%08X",
433 : sta->acct_session_id_hi, sta->acct_session_id_lo);
434 3668 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_ACCT_SESSION_ID,
435 : (u8 *) buf, os_strlen(buf))) {
436 0 : wpa_printf(MSG_ERROR, "Could not add Acct-Session-Id");
437 0 : return -1;
438 : }
439 : }
440 :
441 : #ifdef CONFIG_IEEE80211R
442 3680 : if (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) &&
443 24 : sta->wpa_sm &&
444 12 : (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm)) ||
445 12 : sta->auth_alg == WLAN_AUTH_FT) &&
446 12 : !hostapd_config_get_radius_attr(req_attr,
447 12 : RADIUS_ATTR_MOBILITY_DOMAIN_ID) &&
448 12 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_MOBILITY_DOMAIN_ID,
449 12 : WPA_GET_BE16(
450 12 : hapd->conf->mobility_domain))) {
451 0 : wpa_printf(MSG_ERROR, "Could not add Mobility-Domain-Id");
452 0 : return -1;
453 : }
454 : #endif /* CONFIG_IEEE80211R */
455 :
456 7282 : if (hapd->conf->wpa && sta->wpa_sm &&
457 3614 : add_common_radius_sta_attr_rsn(hapd, req_attr, sta, msg) < 0)
458 0 : return -1;
459 :
460 3668 : return 0;
461 : }
462 :
463 :
464 3770 : int add_common_radius_attr(struct hostapd_data *hapd,
465 : struct hostapd_radius_attr *req_attr,
466 : struct sta_info *sta,
467 : struct radius_msg *msg)
468 : {
469 : char buf[128];
470 : struct hostapd_radius_attr *attr;
471 :
472 3770 : if (!hostapd_config_get_radius_attr(req_attr,
473 3770 : RADIUS_ATTR_NAS_IP_ADDRESS) &&
474 3803 : hapd->conf->own_ip_addr.af == AF_INET &&
475 33 : !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
476 33 : (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
477 0 : wpa_printf(MSG_ERROR, "Could not add NAS-IP-Address");
478 0 : return -1;
479 : }
480 :
481 : #ifdef CONFIG_IPV6
482 3770 : if (!hostapd_config_get_radius_attr(req_attr,
483 3770 : RADIUS_ATTR_NAS_IPV6_ADDRESS) &&
484 3777 : hapd->conf->own_ip_addr.af == AF_INET6 &&
485 7 : !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
486 7 : (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
487 0 : wpa_printf(MSG_ERROR, "Could not add NAS-IPv6-Address");
488 0 : return -1;
489 : }
490 : #endif /* CONFIG_IPV6 */
491 :
492 3770 : if (!hostapd_config_get_radius_attr(req_attr,
493 3770 : RADIUS_ATTR_NAS_IDENTIFIER) &&
494 6948 : hapd->conf->nas_identifier &&
495 6356 : !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
496 3178 : (u8 *) hapd->conf->nas_identifier,
497 3178 : os_strlen(hapd->conf->nas_identifier))) {
498 0 : wpa_printf(MSG_ERROR, "Could not add NAS-Identifier");
499 0 : return -1;
500 : }
501 :
502 30160 : os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":%s",
503 22620 : MAC2STR(hapd->own_addr),
504 3770 : wpa_ssid_txt(hapd->conf->ssid.ssid,
505 3770 : hapd->conf->ssid.ssid_len));
506 3770 : buf[sizeof(buf) - 1] = '\0';
507 3770 : if (!hostapd_config_get_radius_attr(req_attr,
508 3770 : RADIUS_ATTR_CALLED_STATION_ID) &&
509 3770 : !radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
510 : (u8 *) buf, os_strlen(buf))) {
511 0 : wpa_printf(MSG_ERROR, "Could not add Called-Station-Id");
512 0 : return -1;
513 : }
514 :
515 3770 : if (!hostapd_config_get_radius_attr(req_attr,
516 3770 : RADIUS_ATTR_NAS_PORT_TYPE) &&
517 3770 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
518 : RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
519 0 : wpa_printf(MSG_ERROR, "Could not add NAS-Port-Type");
520 0 : return -1;
521 : }
522 :
523 : #ifdef CONFIG_INTERWORKING
524 4355 : if (hapd->conf->interworking &&
525 585 : !is_zero_ether_addr(hapd->conf->hessid)) {
526 1278 : os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
527 1278 : MAC2STR(hapd->conf->hessid));
528 213 : buf[sizeof(buf) - 1] = '\0';
529 213 : if (!hostapd_config_get_radius_attr(req_attr,
530 213 : RADIUS_ATTR_WLAN_HESSID) &&
531 213 : !radius_msg_add_attr(msg, RADIUS_ATTR_WLAN_HESSID,
532 : (u8 *) buf, os_strlen(buf))) {
533 0 : wpa_printf(MSG_ERROR, "Could not add WLAN-HESSID");
534 0 : return -1;
535 : }
536 : }
537 : #endif /* CONFIG_INTERWORKING */
538 :
539 3770 : if (sta && add_common_radius_sta_attr(hapd, req_attr, sta, msg) < 0)
540 0 : return -1;
541 :
542 3804 : for (attr = req_attr; attr; attr = attr->next) {
543 68 : if (!radius_msg_add_attr(msg, attr->type,
544 34 : wpabuf_head(attr->val),
545 34 : wpabuf_len(attr->val))) {
546 0 : wpa_printf(MSG_ERROR, "Could not add RADIUS "
547 : "attribute");
548 0 : return -1;
549 : }
550 : }
551 :
552 3770 : return 0;
553 : }
554 :
555 :
556 3291 : static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
557 : struct sta_info *sta,
558 : const u8 *eap, size_t len)
559 : {
560 : struct radius_msg *msg;
561 3291 : struct eapol_state_machine *sm = sta->eapol_sm;
562 :
563 3291 : if (sm == NULL)
564 0 : return;
565 :
566 3291 : ieee802_1x_learn_identity(hapd, sm, eap, len);
567 :
568 3291 : wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
569 : "packet");
570 :
571 3291 : sm->radius_identifier = radius_client_get_id(hapd->radius);
572 3291 : msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
573 3291 : sm->radius_identifier);
574 3291 : if (msg == NULL) {
575 6 : wpa_printf(MSG_INFO, "Could not create new RADIUS packet");
576 6 : return;
577 : }
578 :
579 3285 : radius_msg_make_authenticator(msg, (u8 *) sta, sizeof(*sta));
580 :
581 6569 : if (sm->identity &&
582 6568 : !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
583 3284 : sm->identity, sm->identity_len)) {
584 0 : wpa_printf(MSG_INFO, "Could not add User-Name");
585 0 : goto fail;
586 : }
587 :
588 3285 : if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr, sta,
589 : msg) < 0)
590 0 : goto fail;
591 :
592 : /* TODO: should probably check MTU from driver config; 2304 is max for
593 : * IEEE 802.11, but use 1400 to avoid problems with too large packets
594 : */
595 3285 : if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
596 3285 : RADIUS_ATTR_FRAMED_MTU) &&
597 3285 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
598 0 : wpa_printf(MSG_INFO, "Could not add Framed-MTU");
599 0 : goto fail;
600 : }
601 :
602 3285 : if (eap && !radius_msg_add_eap(msg, eap, len)) {
603 0 : wpa_printf(MSG_INFO, "Could not add EAP-Message");
604 0 : goto fail;
605 : }
606 :
607 : /* State attribute must be copied if and only if this packet is
608 : * Access-Request reply to the previous Access-Challenge */
609 5733 : if (sm->last_recv_radius &&
610 2448 : radius_msg_get_hdr(sm->last_recv_radius)->code ==
611 : RADIUS_CODE_ACCESS_CHALLENGE) {
612 2354 : int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
613 : RADIUS_ATTR_STATE);
614 2354 : if (res < 0) {
615 0 : wpa_printf(MSG_INFO, "Could not copy State attribute from previous Access-Challenge");
616 0 : goto fail;
617 : }
618 2354 : if (res > 0) {
619 2146 : wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
620 : }
621 : }
622 :
623 3285 : if (hapd->conf->radius_request_cui) {
624 : const u8 *cui;
625 : size_t cui_len;
626 : /* Add previously learned CUI or nul CUI to request CUI */
627 6 : if (sm->radius_cui) {
628 3 : cui = wpabuf_head(sm->radius_cui);
629 3 : cui_len = wpabuf_len(sm->radius_cui);
630 : } else {
631 3 : cui = (const u8 *) "\0";
632 3 : cui_len = 1;
633 : }
634 6 : if (!radius_msg_add_attr(msg,
635 : RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
636 : cui, cui_len)) {
637 0 : wpa_printf(MSG_ERROR, "Could not add CUI");
638 0 : goto fail;
639 : }
640 : }
641 :
642 : #ifdef CONFIG_HS20
643 3285 : if (hapd->conf->hs20) {
644 585 : u8 ver = 1; /* Release 2 */
645 585 : if (!radius_msg_add_wfa(
646 : msg, RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION,
647 : &ver, 1)) {
648 0 : wpa_printf(MSG_ERROR, "Could not add HS 2.0 AP "
649 : "version");
650 0 : goto fail;
651 : }
652 :
653 585 : if (sta->hs20_ie && wpabuf_len(sta->hs20_ie) > 0) {
654 : const u8 *pos;
655 : u8 buf[3];
656 : u16 id;
657 555 : pos = wpabuf_head_u8(sta->hs20_ie);
658 555 : buf[0] = (*pos) >> 4;
659 1110 : if (((*pos) & HS20_PPS_MO_ID_PRESENT) &&
660 555 : wpabuf_len(sta->hs20_ie) >= 3)
661 555 : id = WPA_GET_LE16(pos + 1);
662 : else
663 0 : id = 0;
664 555 : WPA_PUT_BE16(buf + 1, id);
665 555 : if (!radius_msg_add_wfa(
666 : msg,
667 : RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION,
668 : buf, sizeof(buf))) {
669 0 : wpa_printf(MSG_ERROR, "Could not add HS 2.0 "
670 : "STA version");
671 0 : goto fail;
672 : }
673 : }
674 : }
675 : #endif /* CONFIG_HS20 */
676 :
677 3285 : if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0)
678 0 : goto fail;
679 :
680 3285 : return;
681 :
682 : fail:
683 0 : radius_msg_free(msg);
684 : }
685 : #endif /* CONFIG_NO_RADIUS */
686 :
687 :
688 5261 : static void handle_eap_response(struct hostapd_data *hapd,
689 : struct sta_info *sta, struct eap_hdr *eap,
690 : size_t len)
691 : {
692 : u8 type, *data;
693 5261 : struct eapol_state_machine *sm = sta->eapol_sm;
694 5261 : if (sm == NULL)
695 0 : return;
696 :
697 5261 : data = (u8 *) (eap + 1);
698 :
699 5261 : if (len < sizeof(*eap) + 1) {
700 0 : wpa_printf(MSG_INFO, "handle_eap_response: too short response data");
701 0 : return;
702 : }
703 :
704 5261 : sm->eap_type_supp = type = data[0];
705 :
706 21044 : hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
707 : HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
708 : "id=%d len=%d) from STA: EAP Response-%s (%d)",
709 15783 : eap->code, eap->identifier, be_to_host16(eap->length),
710 : eap_server_get_name(0, type), type);
711 :
712 5261 : sm->dot1xAuthEapolRespFramesRx++;
713 :
714 5261 : wpabuf_free(sm->eap_if->eapRespData);
715 5261 : sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
716 5261 : sm->eapolEap = TRUE;
717 : }
718 :
719 :
720 20 : static void handle_eap_initiate(struct hostapd_data *hapd,
721 : struct sta_info *sta, struct eap_hdr *eap,
722 : size_t len)
723 : {
724 : #ifdef CONFIG_ERP
725 : u8 type, *data;
726 20 : struct eapol_state_machine *sm = sta->eapol_sm;
727 :
728 20 : if (sm == NULL)
729 0 : return;
730 :
731 20 : if (len < sizeof(*eap) + 1) {
732 0 : wpa_printf(MSG_INFO,
733 : "handle_eap_initiate: too short response data");
734 0 : return;
735 : }
736 :
737 20 : data = (u8 *) (eap + 1);
738 20 : type = data[0];
739 :
740 80 : hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
741 : HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
742 : "id=%d len=%d) from STA: EAP Initiate type %u",
743 60 : eap->code, eap->identifier, be_to_host16(eap->length),
744 : type);
745 :
746 20 : wpabuf_free(sm->eap_if->eapRespData);
747 20 : sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
748 20 : sm->eapolEap = TRUE;
749 : #endif /* CONFIG_ERP */
750 : }
751 :
752 :
753 : /* Process incoming EAP packet from Supplicant */
754 5282 : static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
755 : u8 *buf, size_t len)
756 : {
757 : struct eap_hdr *eap;
758 : u16 eap_len;
759 :
760 5282 : if (len < sizeof(*eap)) {
761 0 : wpa_printf(MSG_INFO, " too short EAP packet");
762 0 : return;
763 : }
764 :
765 5282 : eap = (struct eap_hdr *) buf;
766 :
767 5282 : eap_len = be_to_host16(eap->length);
768 15846 : wpa_printf(MSG_DEBUG, "EAP: code=%d identifier=%d length=%d",
769 10564 : eap->code, eap->identifier, eap_len);
770 5282 : if (eap_len < sizeof(*eap)) {
771 0 : wpa_printf(MSG_DEBUG, " Invalid EAP length");
772 0 : return;
773 5282 : } else if (eap_len > len) {
774 0 : wpa_printf(MSG_DEBUG, " Too short frame to contain this EAP "
775 : "packet");
776 0 : return;
777 5282 : } else if (eap_len < len) {
778 0 : wpa_printf(MSG_DEBUG, " Ignoring %lu extra bytes after EAP "
779 : "packet", (unsigned long) len - eap_len);
780 : }
781 :
782 5282 : switch (eap->code) {
783 : case EAP_CODE_REQUEST:
784 1 : wpa_printf(MSG_DEBUG, " (request)");
785 1 : return;
786 : case EAP_CODE_RESPONSE:
787 5261 : wpa_printf(MSG_DEBUG, " (response)");
788 5261 : handle_eap_response(hapd, sta, eap, eap_len);
789 5261 : break;
790 : case EAP_CODE_SUCCESS:
791 0 : wpa_printf(MSG_DEBUG, " (success)");
792 0 : return;
793 : case EAP_CODE_FAILURE:
794 0 : wpa_printf(MSG_DEBUG, " (failure)");
795 0 : return;
796 : case EAP_CODE_INITIATE:
797 20 : wpa_printf(MSG_DEBUG, " (initiate)");
798 20 : handle_eap_initiate(hapd, sta, eap, eap_len);
799 20 : break;
800 : case EAP_CODE_FINISH:
801 0 : wpa_printf(MSG_DEBUG, " (finish)");
802 0 : break;
803 : default:
804 0 : wpa_printf(MSG_DEBUG, " (unknown code)");
805 0 : return;
806 : }
807 : }
808 :
809 :
810 : static struct eapol_state_machine *
811 1222 : ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
812 : {
813 1222 : int flags = 0;
814 1222 : if (sta->flags & WLAN_STA_PREAUTH)
815 4 : flags |= EAPOL_SM_PREAUTH;
816 1222 : if (sta->wpa_sm) {
817 930 : flags |= EAPOL_SM_USES_WPA;
818 930 : if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
819 29 : flags |= EAPOL_SM_FROM_PMKSA_CACHE;
820 : }
821 1222 : return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
822 1222 : sta->wps_ie, sta->p2p_ie, sta,
823 1222 : sta->identity, sta->radius_cui);
824 : }
825 :
826 :
827 : /**
828 : * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
829 : * @hapd: hostapd BSS data
830 : * @sa: Source address (sender of the EAPOL frame)
831 : * @buf: EAPOL frame
832 : * @len: Length of buf in octets
833 : *
834 : * This function is called for each incoming EAPOL frame from the interface
835 : */
836 8054 : void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
837 : size_t len)
838 : {
839 : struct sta_info *sta;
840 : struct ieee802_1x_hdr *hdr;
841 : struct ieee802_1x_eapol_key *key;
842 : u16 datalen;
843 : struct rsn_pmksa_cache_entry *pmksa;
844 : int key_mgmt;
845 :
846 8133 : if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen &&
847 79 : !hapd->conf->wps_state)
848 0 : return;
849 :
850 48324 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
851 48324 : (unsigned long) len, MAC2STR(sa));
852 8054 : sta = ap_get_sta(hapd, sa);
853 8057 : if (!sta || (!(sta->flags & (WLAN_STA_ASSOC | WLAN_STA_PREAUTH)) &&
854 3 : !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
855 17 : wpa_printf(MSG_DEBUG, "IEEE 802.1X data frame from not "
856 : "associated/Pre-authenticating STA");
857 17 : return;
858 : }
859 :
860 8037 : if (len < sizeof(*hdr)) {
861 0 : wpa_printf(MSG_INFO, " too short IEEE 802.1X packet");
862 0 : return;
863 : }
864 :
865 8037 : hdr = (struct ieee802_1x_hdr *) buf;
866 8037 : datalen = be_to_host16(hdr->length);
867 24111 : wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
868 16074 : hdr->version, hdr->type, datalen);
869 :
870 8037 : if (len - sizeof(*hdr) < datalen) {
871 1 : wpa_printf(MSG_INFO, " frame too short for this IEEE 802.1X packet");
872 1 : if (sta->eapol_sm)
873 0 : sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
874 1 : return;
875 : }
876 8036 : if (len - sizeof(*hdr) > datalen) {
877 1 : wpa_printf(MSG_DEBUG, " ignoring %lu extra octets after "
878 : "IEEE 802.1X packet",
879 1 : (unsigned long) len - sizeof(*hdr) - datalen);
880 : }
881 :
882 8036 : if (sta->eapol_sm) {
883 6637 : sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
884 6637 : sta->eapol_sm->dot1xAuthEapolFramesRx++;
885 : }
886 :
887 8036 : key = (struct ieee802_1x_eapol_key *) (hdr + 1);
888 13386 : if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
889 8015 : hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
890 5256 : (key->type == EAPOL_KEY_TYPE_WPA ||
891 2591 : key->type == EAPOL_KEY_TYPE_RSN)) {
892 2664 : wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
893 : sizeof(*hdr) + datalen);
894 2664 : return;
895 : }
896 :
897 6986 : if (!hapd->conf->ieee802_1x && !hapd->conf->osen &&
898 1614 : !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
899 1 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
900 : "802.1X not enabled and WPS not used");
901 1 : return;
902 : }
903 :
904 5371 : key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
905 5371 : if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
906 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
907 : "STA is using PSK");
908 0 : return;
909 : }
910 :
911 5371 : if (!sta->eapol_sm) {
912 1 : sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
913 1 : if (!sta->eapol_sm)
914 0 : return;
915 :
916 : #ifdef CONFIG_WPS
917 1 : if (!hapd->conf->ieee802_1x && hapd->conf->wps_state) {
918 0 : u32 wflags = sta->flags & (WLAN_STA_WPS |
919 : WLAN_STA_WPS2 |
920 : WLAN_STA_MAYBE_WPS);
921 0 : if (wflags == WLAN_STA_MAYBE_WPS ||
922 : wflags == (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) {
923 : /*
924 : * Delay EAPOL frame transmission until a
925 : * possible WPS STA initiates the handshake
926 : * with EAPOL-Start. Only allow the wait to be
927 : * skipped if the STA is known to support WPS
928 : * 2.0.
929 : */
930 0 : wpa_printf(MSG_DEBUG, "WPS: Do not start "
931 : "EAPOL until EAPOL-Start is "
932 : "received");
933 0 : sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
934 : }
935 : }
936 : #endif /* CONFIG_WPS */
937 :
938 1 : sta->eapol_sm->eap_if->portEnabled = TRUE;
939 : }
940 :
941 : /* since we support version 1, we can ignore version field and proceed
942 : * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
943 : /* TODO: actually, we are not version 1 anymore.. However, Version 2
944 : * does not change frame contents, so should be ok to process frames
945 : * more or less identically. Some changes might be needed for
946 : * verification of fields. */
947 :
948 5371 : switch (hdr->type) {
949 : case IEEE802_1X_TYPE_EAP_PACKET:
950 5282 : handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
951 5282 : break;
952 :
953 : case IEEE802_1X_TYPE_EAPOL_START:
954 87 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
955 : HOSTAPD_LEVEL_DEBUG, "received EAPOL-Start "
956 : "from STA");
957 87 : sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
958 87 : pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
959 87 : if (pmksa) {
960 1 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
961 : HOSTAPD_LEVEL_DEBUG, "cached PMKSA "
962 : "available - ignore it since "
963 : "STA sent EAPOL-Start");
964 1 : wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
965 : }
966 87 : sta->eapol_sm->eapolStart = TRUE;
967 87 : sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
968 87 : eap_server_clear_identity(sta->eapol_sm->eap);
969 87 : wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
970 87 : break;
971 :
972 : case IEEE802_1X_TYPE_EAPOL_LOGOFF:
973 2 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
974 : HOSTAPD_LEVEL_DEBUG, "received EAPOL-Logoff "
975 : "from STA");
976 2 : sta->acct_terminate_cause =
977 : RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
978 2 : accounting_sta_stop(hapd, sta);
979 2 : sta->eapol_sm->eapolLogoff = TRUE;
980 2 : sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
981 2 : eap_server_clear_identity(sta->eapol_sm->eap);
982 2 : break;
983 :
984 : case IEEE802_1X_TYPE_EAPOL_KEY:
985 0 : wpa_printf(MSG_DEBUG, " EAPOL-Key");
986 0 : if (!ap_sta_is_authorized(sta)) {
987 0 : wpa_printf(MSG_DEBUG, " Dropped key data from "
988 : "unauthorized Supplicant");
989 0 : break;
990 : }
991 0 : break;
992 :
993 : case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
994 0 : wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
995 : /* TODO: implement support for this; show data */
996 0 : break;
997 :
998 : default:
999 0 : wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
1000 0 : sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
1001 0 : break;
1002 : }
1003 :
1004 5371 : eapol_auth_step(sta->eapol_sm);
1005 : }
1006 :
1007 :
1008 : /**
1009 : * ieee802_1x_new_station - Start IEEE 802.1X authentication
1010 : * @hapd: hostapd BSS data
1011 : * @sta: The station
1012 : *
1013 : * This function is called to start IEEE 802.1X authentication when a new
1014 : * station completes IEEE 802.11 association.
1015 : */
1016 2465 : void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
1017 : {
1018 : struct rsn_pmksa_cache_entry *pmksa;
1019 2465 : int reassoc = 1;
1020 2465 : int force_1x = 0;
1021 : int key_mgmt;
1022 :
1023 : #ifdef CONFIG_WPS
1024 3040 : if (hapd->conf->wps_state &&
1025 1701 : ((hapd->conf->wpa && (sta->flags & WLAN_STA_MAYBE_WPS)) ||
1026 575 : (sta->flags & WLAN_STA_WPS))) {
1027 : /*
1028 : * Need to enable IEEE 802.1X/EAPOL state machines for possible
1029 : * WPS handshake even if IEEE 802.1X/EAPOL is not used for
1030 : * authentication in this BSS.
1031 : */
1032 280 : force_1x = 1;
1033 : }
1034 : #endif /* CONFIG_WPS */
1035 :
1036 2465 : if (!force_1x && !hapd->conf->ieee802_1x && !hapd->conf->osen) {
1037 1190 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - "
1038 : "802.1X not enabled or forced for WPS");
1039 : /*
1040 : * Clear any possible EAPOL authenticator state to support
1041 : * reassociation change from WPS to PSK.
1042 : */
1043 1190 : ieee802_1x_free_station(sta);
1044 1190 : return;
1045 : }
1046 :
1047 1275 : key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
1048 1275 : if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
1049 6 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - using PSK");
1050 : /*
1051 : * Clear any possible EAPOL authenticator state to support
1052 : * reassociation change from WPA-EAP to PSK.
1053 : */
1054 6 : ieee802_1x_free_station(sta);
1055 6 : return;
1056 : }
1057 :
1058 1269 : if (sta->eapol_sm == NULL) {
1059 1221 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1060 : HOSTAPD_LEVEL_DEBUG, "start authentication");
1061 1221 : sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
1062 1221 : if (sta->eapol_sm == NULL) {
1063 0 : hostapd_logger(hapd, sta->addr,
1064 : HOSTAPD_MODULE_IEEE8021X,
1065 : HOSTAPD_LEVEL_INFO,
1066 : "failed to allocate state machine");
1067 0 : return;
1068 : }
1069 1221 : reassoc = 0;
1070 : }
1071 :
1072 : #ifdef CONFIG_WPS
1073 1269 : sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
1074 1549 : if (!hapd->conf->ieee802_1x && hapd->conf->wps_state &&
1075 280 : !(sta->flags & WLAN_STA_WPS2)) {
1076 : /*
1077 : * Delay EAPOL frame transmission until a possible WPS STA
1078 : * initiates the handshake with EAPOL-Start. Only allow the
1079 : * wait to be skipped if the STA is known to support WPS 2.0.
1080 : */
1081 2 : wpa_printf(MSG_DEBUG, "WPS: Do not start EAPOL until "
1082 : "EAPOL-Start is received");
1083 2 : sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1084 : }
1085 : #endif /* CONFIG_WPS */
1086 :
1087 1269 : sta->eapol_sm->eap_if->portEnabled = TRUE;
1088 :
1089 : #ifdef CONFIG_IEEE80211R
1090 1269 : if (sta->auth_alg == WLAN_AUTH_FT) {
1091 4 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1092 : HOSTAPD_LEVEL_DEBUG,
1093 : "PMK from FT - skip IEEE 802.1X/EAP");
1094 : /* Setup EAPOL state machines to already authenticated state
1095 : * because of existing FT information from R0KH. */
1096 4 : sta->eapol_sm->keyRun = TRUE;
1097 4 : sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1098 4 : sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1099 4 : sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1100 4 : sta->eapol_sm->authSuccess = TRUE;
1101 4 : sta->eapol_sm->authFail = FALSE;
1102 4 : if (sta->eapol_sm->eap)
1103 4 : eap_sm_notify_cached(sta->eapol_sm->eap);
1104 : /* TODO: get vlan_id from R0KH using RRB message */
1105 4 : return;
1106 : }
1107 : #endif /* CONFIG_IEEE80211R */
1108 :
1109 1265 : pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1110 1265 : if (pmksa) {
1111 : int old_vlanid;
1112 :
1113 29 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1114 : HOSTAPD_LEVEL_DEBUG,
1115 : "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
1116 : /* Setup EAPOL state machines to already authenticated state
1117 : * because of existing PMKSA information in the cache. */
1118 29 : sta->eapol_sm->keyRun = TRUE;
1119 29 : sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1120 29 : sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1121 29 : sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1122 29 : sta->eapol_sm->authSuccess = TRUE;
1123 29 : sta->eapol_sm->authFail = FALSE;
1124 29 : if (sta->eapol_sm->eap)
1125 29 : eap_sm_notify_cached(sta->eapol_sm->eap);
1126 29 : old_vlanid = sta->vlan_id;
1127 29 : pmksa_cache_to_eapol_data(pmksa, sta->eapol_sm);
1128 29 : if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
1129 29 : sta->vlan_id = 0;
1130 29 : ap_sta_bind_vlan(hapd, sta, old_vlanid);
1131 : } else {
1132 1236 : if (reassoc) {
1133 : /*
1134 : * Force EAPOL state machines to start
1135 : * re-authentication without having to wait for the
1136 : * Supplicant to send EAPOL-Start.
1137 : */
1138 48 : sta->eapol_sm->reAuthenticate = TRUE;
1139 : }
1140 1236 : eapol_auth_step(sta->eapol_sm);
1141 : }
1142 : }
1143 :
1144 :
1145 3707 : void ieee802_1x_free_station(struct sta_info *sta)
1146 : {
1147 3707 : struct eapol_state_machine *sm = sta->eapol_sm;
1148 :
1149 3707 : if (sm == NULL)
1150 6192 : return;
1151 :
1152 1222 : sta->eapol_sm = NULL;
1153 :
1154 : #ifndef CONFIG_NO_RADIUS
1155 1044 : radius_msg_free(sm->last_recv_radius);
1156 1044 : radius_free_class(&sm->radius_class);
1157 1044 : wpabuf_free(sm->radius_cui);
1158 : #endif /* CONFIG_NO_RADIUS */
1159 :
1160 1222 : os_free(sm->identity);
1161 1222 : eapol_auth_free(sm);
1162 : }
1163 :
1164 :
1165 : #ifndef CONFIG_NO_RADIUS
1166 3266 : static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
1167 : struct sta_info *sta)
1168 : {
1169 : struct wpabuf *eap;
1170 : const struct eap_hdr *hdr;
1171 3266 : int eap_type = -1;
1172 : char buf[64];
1173 : struct radius_msg *msg;
1174 3266 : struct eapol_state_machine *sm = sta->eapol_sm;
1175 :
1176 3266 : if (sm == NULL || sm->last_recv_radius == NULL) {
1177 0 : if (sm)
1178 0 : sm->eap_if->aaaEapNoReq = TRUE;
1179 12 : return;
1180 : }
1181 :
1182 3266 : msg = sm->last_recv_radius;
1183 :
1184 3266 : eap = radius_msg_get_eap(msg);
1185 3266 : if (eap == NULL) {
1186 : /* RFC 3579, Chap. 2.6.3:
1187 : * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
1188 : * attribute */
1189 12 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1190 : HOSTAPD_LEVEL_WARNING, "could not extract "
1191 : "EAP-Message from RADIUS message");
1192 12 : sm->eap_if->aaaEapNoReq = TRUE;
1193 12 : return;
1194 : }
1195 :
1196 3254 : if (wpabuf_len(eap) < sizeof(*hdr)) {
1197 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1198 : HOSTAPD_LEVEL_WARNING, "too short EAP packet "
1199 : "received from authentication server");
1200 0 : wpabuf_free(eap);
1201 0 : sm->eap_if->aaaEapNoReq = TRUE;
1202 0 : return;
1203 : }
1204 :
1205 3254 : if (wpabuf_len(eap) > sizeof(*hdr))
1206 2500 : eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)];
1207 :
1208 3254 : hdr = wpabuf_head(eap);
1209 3254 : switch (hdr->code) {
1210 : case EAP_CODE_REQUEST:
1211 2477 : if (eap_type >= 0)
1212 2477 : sm->eap_type_authsrv = eap_type;
1213 2477 : os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
1214 : eap_server_get_name(0, eap_type), eap_type);
1215 2477 : break;
1216 : case EAP_CODE_RESPONSE:
1217 6 : os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
1218 : eap_server_get_name(0, eap_type), eap_type);
1219 6 : break;
1220 : case EAP_CODE_SUCCESS:
1221 563 : os_strlcpy(buf, "EAP Success", sizeof(buf));
1222 563 : break;
1223 : case EAP_CODE_FAILURE:
1224 193 : os_strlcpy(buf, "EAP Failure", sizeof(buf));
1225 193 : break;
1226 : default:
1227 15 : os_strlcpy(buf, "unknown EAP code", sizeof(buf));
1228 15 : break;
1229 : }
1230 3254 : buf[sizeof(buf) - 1] = '\0';
1231 9762 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1232 : HOSTAPD_LEVEL_DEBUG, "decapsulated EAP packet (code=%d "
1233 : "id=%d len=%d) from RADIUS server: %s",
1234 9762 : hdr->code, hdr->identifier, be_to_host16(hdr->length),
1235 : buf);
1236 3254 : sm->eap_if->aaaEapReq = TRUE;
1237 :
1238 3254 : wpabuf_free(sm->eap_if->aaaEapReqData);
1239 3254 : sm->eap_if->aaaEapReqData = eap;
1240 : }
1241 :
1242 :
1243 569 : static void ieee802_1x_get_keys(struct hostapd_data *hapd,
1244 : struct sta_info *sta, struct radius_msg *msg,
1245 : struct radius_msg *req,
1246 : const u8 *shared_secret,
1247 : size_t shared_secret_len)
1248 : {
1249 : struct radius_ms_mppe_keys *keys;
1250 569 : struct eapol_state_machine *sm = sta->eapol_sm;
1251 569 : if (sm == NULL)
1252 569 : return;
1253 :
1254 569 : keys = radius_msg_get_ms_keys(msg, req, shared_secret,
1255 : shared_secret_len);
1256 :
1257 1133 : if (keys && keys->send && keys->recv) {
1258 564 : size_t len = keys->send_len + keys->recv_len;
1259 1128 : wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
1260 564 : keys->send, keys->send_len);
1261 1128 : wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
1262 564 : keys->recv, keys->recv_len);
1263 :
1264 564 : os_free(sm->eap_if->aaaEapKeyData);
1265 564 : sm->eap_if->aaaEapKeyData = os_malloc(len);
1266 564 : if (sm->eap_if->aaaEapKeyData) {
1267 564 : os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
1268 : keys->recv_len);
1269 564 : os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
1270 : keys->send, keys->send_len);
1271 564 : sm->eap_if->aaaEapKeyDataLen = len;
1272 564 : sm->eap_if->aaaEapKeyAvailable = TRUE;
1273 : }
1274 : } else {
1275 5 : wpa_printf(MSG_DEBUG,
1276 : "MS-MPPE: 1x_get_keys, could not get keys: %p send: %p recv: %p",
1277 : keys, keys ? keys->send : NULL,
1278 : keys ? keys->recv : NULL);
1279 : }
1280 :
1281 569 : if (keys) {
1282 568 : os_free(keys->send);
1283 568 : os_free(keys->recv);
1284 568 : os_free(keys);
1285 : }
1286 : }
1287 :
1288 :
1289 569 : static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
1290 : struct sta_info *sta,
1291 : struct radius_msg *msg)
1292 : {
1293 : u8 *class;
1294 : size_t class_len;
1295 569 : struct eapol_state_machine *sm = sta->eapol_sm;
1296 : int count, i;
1297 : struct radius_attr_data *nclass;
1298 : size_t nclass_count;
1299 :
1300 569 : if (!hapd->conf->radius->acct_server || hapd->radius == NULL ||
1301 : sm == NULL)
1302 942 : return;
1303 :
1304 191 : radius_free_class(&sm->radius_class);
1305 191 : count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
1306 191 : if (count <= 0)
1307 186 : return;
1308 :
1309 5 : nclass = os_calloc(count, sizeof(struct radius_attr_data));
1310 5 : if (nclass == NULL)
1311 0 : return;
1312 :
1313 5 : nclass_count = 0;
1314 :
1315 5 : class = NULL;
1316 10 : for (i = 0; i < count; i++) {
1317 : do {
1318 5 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
1319 : &class, &class_len,
1320 : class) < 0) {
1321 0 : i = count;
1322 0 : break;
1323 : }
1324 5 : } while (class_len < 1);
1325 :
1326 5 : nclass[nclass_count].data = os_malloc(class_len);
1327 5 : if (nclass[nclass_count].data == NULL)
1328 0 : break;
1329 :
1330 5 : os_memcpy(nclass[nclass_count].data, class, class_len);
1331 5 : nclass[nclass_count].len = class_len;
1332 5 : nclass_count++;
1333 : }
1334 :
1335 5 : sm->radius_class.attr = nclass;
1336 5 : sm->radius_class.count = nclass_count;
1337 30 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Stored %lu RADIUS Class "
1338 : "attributes for " MACSTR,
1339 : (unsigned long) sm->radius_class.count,
1340 30 : MAC2STR(sta->addr));
1341 : }
1342 :
1343 :
1344 : /* Update sta->identity based on User-Name attribute in Access-Accept */
1345 569 : static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
1346 : struct sta_info *sta,
1347 : struct radius_msg *msg)
1348 : {
1349 : u8 *buf, *identity;
1350 : size_t len;
1351 569 : struct eapol_state_machine *sm = sta->eapol_sm;
1352 :
1353 569 : if (sm == NULL)
1354 569 : return;
1355 :
1356 569 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
1357 : NULL) < 0)
1358 569 : return;
1359 :
1360 0 : identity = (u8 *) dup_binstr(buf, len);
1361 0 : if (identity == NULL)
1362 0 : return;
1363 :
1364 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1365 : HOSTAPD_LEVEL_DEBUG, "old identity '%s' updated with "
1366 : "User-Name from Access-Accept '%s'",
1367 0 : sm->identity ? (char *) sm->identity : "N/A",
1368 : (char *) identity);
1369 :
1370 0 : os_free(sm->identity);
1371 0 : sm->identity = identity;
1372 0 : sm->identity_len = len;
1373 : }
1374 :
1375 :
1376 : /* Update CUI based on Chargeable-User-Identity attribute in Access-Accept */
1377 569 : static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd,
1378 : struct sta_info *sta,
1379 : struct radius_msg *msg)
1380 : {
1381 569 : struct eapol_state_machine *sm = sta->eapol_sm;
1382 : struct wpabuf *cui;
1383 : u8 *buf;
1384 : size_t len;
1385 :
1386 569 : if (sm == NULL)
1387 564 : return;
1388 :
1389 569 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
1390 : &buf, &len, NULL) < 0)
1391 564 : return;
1392 :
1393 5 : cui = wpabuf_alloc_copy(buf, len);
1394 5 : if (cui == NULL)
1395 0 : return;
1396 :
1397 5 : wpabuf_free(sm->radius_cui);
1398 5 : sm->radius_cui = cui;
1399 : }
1400 :
1401 :
1402 : #ifdef CONFIG_HS20
1403 :
1404 2 : static void ieee802_1x_hs20_sub_rem(struct sta_info *sta, u8 *pos, size_t len)
1405 : {
1406 2 : sta->remediation = 1;
1407 2 : os_free(sta->remediation_url);
1408 2 : if (len > 2) {
1409 2 : sta->remediation_url = os_malloc(len);
1410 2 : if (!sta->remediation_url)
1411 2 : return;
1412 2 : sta->remediation_method = pos[0];
1413 2 : os_memcpy(sta->remediation_url, pos + 1, len - 1);
1414 2 : sta->remediation_url[len - 1] = '\0';
1415 16 : wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1416 : "for " MACSTR " - server method %u URL %s",
1417 14 : MAC2STR(sta->addr), sta->remediation_method,
1418 : sta->remediation_url);
1419 : } else {
1420 0 : sta->remediation_url = NULL;
1421 0 : wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1422 0 : "for " MACSTR, MAC2STR(sta->addr));
1423 : }
1424 : /* TODO: assign the STA into remediation VLAN or add filtering */
1425 : }
1426 :
1427 :
1428 1 : static void ieee802_1x_hs20_deauth_req(struct hostapd_data *hapd,
1429 : struct sta_info *sta, u8 *pos,
1430 : size_t len)
1431 : {
1432 1 : if (len < 3)
1433 1 : return; /* Malformed information */
1434 1 : sta->hs20_deauth_requested = 1;
1435 2 : wpa_printf(MSG_DEBUG, "HS 2.0: Deauthentication request - Code %u "
1436 : "Re-auth Delay %u",
1437 2 : *pos, WPA_GET_LE16(pos + 1));
1438 1 : wpabuf_free(sta->hs20_deauth_req);
1439 1 : sta->hs20_deauth_req = wpabuf_alloc(len + 1);
1440 1 : if (sta->hs20_deauth_req) {
1441 1 : wpabuf_put_data(sta->hs20_deauth_req, pos, 3);
1442 1 : wpabuf_put_u8(sta->hs20_deauth_req, len - 3);
1443 1 : wpabuf_put_data(sta->hs20_deauth_req, pos + 3, len - 3);
1444 : }
1445 1 : ap_sta_session_timeout(hapd, sta, hapd->conf->hs20_deauth_req_timeout);
1446 : }
1447 :
1448 :
1449 1 : static void ieee802_1x_hs20_session_info(struct hostapd_data *hapd,
1450 : struct sta_info *sta, u8 *pos,
1451 : size_t len, int session_timeout)
1452 : {
1453 : unsigned int swt;
1454 : int warning_time, beacon_int;
1455 :
1456 1 : if (len < 1)
1457 0 : return; /* Malformed information */
1458 1 : os_free(sta->hs20_session_info_url);
1459 1 : sta->hs20_session_info_url = os_malloc(len);
1460 1 : if (sta->hs20_session_info_url == NULL)
1461 0 : return;
1462 1 : swt = pos[0];
1463 1 : os_memcpy(sta->hs20_session_info_url, pos + 1, len - 1);
1464 1 : sta->hs20_session_info_url[len - 1] = '\0';
1465 1 : wpa_printf(MSG_DEBUG, "HS 2.0: Session Information URL='%s' SWT=%u "
1466 : "(session_timeout=%d)",
1467 : sta->hs20_session_info_url, swt, session_timeout);
1468 1 : if (session_timeout < 0) {
1469 0 : wpa_printf(MSG_DEBUG, "HS 2.0: No Session-Timeout set - ignore session info URL");
1470 0 : return;
1471 : }
1472 1 : if (swt == 255)
1473 0 : swt = 1; /* Use one minute as the AP selected value */
1474 :
1475 1 : if ((unsigned int) session_timeout < swt * 60)
1476 0 : warning_time = 0;
1477 : else
1478 1 : warning_time = session_timeout - swt * 60;
1479 :
1480 1 : beacon_int = hapd->iconf->beacon_int;
1481 1 : if (beacon_int < 1)
1482 0 : beacon_int = 100; /* best guess */
1483 1 : sta->hs20_disassoc_timer = swt * 60 * 1000 / beacon_int * 125 / 128;
1484 1 : if (sta->hs20_disassoc_timer > 65535)
1485 0 : sta->hs20_disassoc_timer = 65535;
1486 :
1487 1 : ap_sta_session_warning_timeout(hapd, sta, warning_time);
1488 : }
1489 :
1490 : #endif /* CONFIG_HS20 */
1491 :
1492 :
1493 569 : static void ieee802_1x_check_hs20(struct hostapd_data *hapd,
1494 : struct sta_info *sta,
1495 : struct radius_msg *msg,
1496 : int session_timeout)
1497 : {
1498 : #ifdef CONFIG_HS20
1499 : u8 *buf, *pos, *end, type, sublen;
1500 : size_t len;
1501 :
1502 569 : buf = NULL;
1503 569 : sta->remediation = 0;
1504 569 : sta->hs20_deauth_requested = 0;
1505 :
1506 : for (;;) {
1507 1709 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_VENDOR_SPECIFIC,
1508 : &buf, &len, buf) < 0)
1509 569 : break;
1510 1140 : if (len < 6)
1511 0 : continue;
1512 1140 : pos = buf;
1513 1140 : end = buf + len;
1514 1140 : if (WPA_GET_BE32(pos) != RADIUS_VENDOR_ID_WFA)
1515 1136 : continue;
1516 4 : pos += 4;
1517 :
1518 4 : type = *pos++;
1519 4 : sublen = *pos++;
1520 4 : if (sublen < 2)
1521 0 : continue; /* invalid length */
1522 4 : sublen -= 2; /* skip header */
1523 4 : if (pos + sublen > end)
1524 0 : continue; /* invalid WFA VSA */
1525 :
1526 4 : switch (type) {
1527 : case RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION:
1528 2 : ieee802_1x_hs20_sub_rem(sta, pos, sublen);
1529 2 : break;
1530 : case RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ:
1531 1 : ieee802_1x_hs20_deauth_req(hapd, sta, pos, sublen);
1532 1 : break;
1533 : case RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL:
1534 1 : ieee802_1x_hs20_session_info(hapd, sta, pos, sublen,
1535 : session_timeout);
1536 1 : break;
1537 : }
1538 1140 : }
1539 : #endif /* CONFIG_HS20 */
1540 569 : }
1541 :
1542 :
1543 : struct sta_id_search {
1544 : u8 identifier;
1545 : struct eapol_state_machine *sm;
1546 : };
1547 :
1548 :
1549 3312 : static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
1550 : struct sta_info *sta,
1551 : void *ctx)
1552 : {
1553 3312 : struct sta_id_search *id_search = ctx;
1554 3312 : struct eapol_state_machine *sm = sta->eapol_sm;
1555 :
1556 6588 : if (sm && sm->radius_identifier >= 0 &&
1557 3276 : sm->radius_identifier == id_search->identifier) {
1558 3269 : id_search->sm = sm;
1559 3269 : return 1;
1560 : }
1561 43 : return 0;
1562 : }
1563 :
1564 :
1565 : static struct eapol_state_machine *
1566 3269 : ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
1567 : {
1568 : struct sta_id_search id_search;
1569 3269 : id_search.identifier = identifier;
1570 3269 : id_search.sm = NULL;
1571 3269 : ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
1572 3269 : return id_search.sm;
1573 : }
1574 :
1575 :
1576 : /**
1577 : * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
1578 : * @msg: RADIUS response message
1579 : * @req: RADIUS request message
1580 : * @shared_secret: RADIUS shared secret
1581 : * @shared_secret_len: Length of shared_secret in octets
1582 : * @data: Context data (struct hostapd_data *)
1583 : * Returns: Processing status
1584 : */
1585 : static RadiusRxResult
1586 3269 : ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
1587 : const u8 *shared_secret, size_t shared_secret_len,
1588 : void *data)
1589 : {
1590 3269 : struct hostapd_data *hapd = data;
1591 : struct sta_info *sta;
1592 3269 : u32 session_timeout = 0, termination_action, acct_interim_interval;
1593 3269 : int session_timeout_set, old_vlanid = 0;
1594 : struct eapol_state_machine *sm;
1595 3269 : int override_eapReq = 0;
1596 3269 : struct radius_hdr *hdr = radius_msg_get_hdr(msg);
1597 :
1598 3269 : sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
1599 3269 : if (sm == NULL) {
1600 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Could not find matching "
1601 : "station for this RADIUS message");
1602 0 : return RADIUS_RX_UNKNOWN;
1603 : }
1604 3269 : sta = sm->sta;
1605 :
1606 : /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
1607 : * present when packet contains an EAP-Message attribute */
1608 3358 : if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
1609 89 : radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
1610 0 : 0) < 0 &&
1611 0 : radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
1612 0 : wpa_printf(MSG_DEBUG, "Allowing RADIUS Access-Reject without "
1613 : "Message-Authenticator since it does not include "
1614 : "EAP-Message");
1615 3269 : } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
1616 : req, 1)) {
1617 3 : wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have correct Message-Authenticator - dropped");
1618 3 : return RADIUS_RX_INVALID_AUTHENTICATOR;
1619 : }
1620 :
1621 5962 : if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
1622 5303 : hdr->code != RADIUS_CODE_ACCESS_REJECT &&
1623 2607 : hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
1624 0 : wpa_printf(MSG_INFO, "Unknown RADIUS message code");
1625 0 : return RADIUS_RX_UNKNOWN;
1626 : }
1627 :
1628 3266 : sm->radius_identifier = -1;
1629 19596 : wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
1630 19596 : MAC2STR(sta->addr));
1631 :
1632 3266 : radius_msg_free(sm->last_recv_radius);
1633 3266 : sm->last_recv_radius = msg;
1634 :
1635 3266 : session_timeout_set =
1636 3266 : !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
1637 : &session_timeout);
1638 3266 : if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
1639 : &termination_action))
1640 3266 : termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
1641 :
1642 6526 : if (hapd->conf->acct_interim_interval == 0 &&
1643 3828 : hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
1644 568 : radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
1645 : &acct_interim_interval) == 0) {
1646 0 : if (acct_interim_interval < 60) {
1647 0 : hostapd_logger(hapd, sta->addr,
1648 : HOSTAPD_MODULE_IEEE8021X,
1649 : HOSTAPD_LEVEL_INFO,
1650 : "ignored too small "
1651 : "Acct-Interim-Interval %d",
1652 : acct_interim_interval);
1653 : } else
1654 0 : sta->acct_interim_interval = acct_interim_interval;
1655 : }
1656 :
1657 :
1658 3266 : switch (hdr->code) {
1659 : case RADIUS_CODE_ACCESS_ACCEPT:
1660 570 : if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_DISABLED)
1661 563 : sta->vlan_id = 0;
1662 : #ifndef CONFIG_NO_VLAN
1663 : else {
1664 7 : old_vlanid = sta->vlan_id;
1665 7 : sta->vlan_id = radius_msg_get_vlanid(msg);
1666 : }
1667 575 : if (sta->vlan_id > 0 &&
1668 5 : hostapd_vlan_id_valid(hapd->conf->vlan, sta->vlan_id)) {
1669 5 : hostapd_logger(hapd, sta->addr,
1670 : HOSTAPD_MODULE_RADIUS,
1671 : HOSTAPD_LEVEL_INFO,
1672 : "VLAN ID %d", sta->vlan_id);
1673 565 : } else if (sta->ssid->dynamic_vlan == DYNAMIC_VLAN_REQUIRED) {
1674 1 : sta->eapol_sm->authFail = TRUE;
1675 1 : hostapd_logger(hapd, sta->addr,
1676 : HOSTAPD_MODULE_IEEE8021X,
1677 : HOSTAPD_LEVEL_INFO, "authentication "
1678 : "server did not include required VLAN "
1679 : "ID in Access-Accept");
1680 1 : break;
1681 : }
1682 : #endif /* CONFIG_NO_VLAN */
1683 :
1684 569 : if (ap_sta_bind_vlan(hapd, sta, old_vlanid) < 0)
1685 0 : break;
1686 :
1687 569 : sta->session_timeout_set = !!session_timeout_set;
1688 569 : sta->session_timeout = session_timeout;
1689 :
1690 : /* RFC 3580, Ch. 3.17 */
1691 569 : if (session_timeout_set && termination_action ==
1692 : RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) {
1693 0 : sm->reAuthPeriod = session_timeout;
1694 569 : } else if (session_timeout_set)
1695 9 : ap_sta_session_timeout(hapd, sta, session_timeout);
1696 :
1697 569 : sm->eap_if->aaaSuccess = TRUE;
1698 569 : override_eapReq = 1;
1699 569 : ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
1700 : shared_secret_len);
1701 569 : ieee802_1x_store_radius_class(hapd, sta, msg);
1702 569 : ieee802_1x_update_sta_identity(hapd, sta, msg);
1703 569 : ieee802_1x_update_sta_cui(hapd, sta, msg);
1704 578 : ieee802_1x_check_hs20(hapd, sta, msg,
1705 : session_timeout_set ?
1706 9 : (int) session_timeout : -1);
1707 569 : if (sm->eap_if->eapKeyAvailable && !sta->remediation &&
1708 0 : !sta->hs20_deauth_requested &&
1709 0 : wpa_auth_pmksa_add(sta->wpa_sm, sm->eapol_key_crypt,
1710 : session_timeout_set ?
1711 0 : (int) session_timeout : -1, sm) == 0) {
1712 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
1713 : HOSTAPD_LEVEL_DEBUG,
1714 : "Added PMKSA cache entry");
1715 : }
1716 569 : break;
1717 : case RADIUS_CODE_ACCESS_REJECT:
1718 89 : sm->eap_if->aaaFail = TRUE;
1719 89 : override_eapReq = 1;
1720 89 : break;
1721 : case RADIUS_CODE_ACCESS_CHALLENGE:
1722 2607 : sm->eap_if->aaaEapReq = TRUE;
1723 2607 : if (session_timeout_set) {
1724 : /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
1725 0 : sm->eap_if->aaaMethodTimeout = session_timeout;
1726 0 : hostapd_logger(hapd, sm->addr,
1727 : HOSTAPD_MODULE_IEEE8021X,
1728 : HOSTAPD_LEVEL_DEBUG,
1729 : "using EAP timeout of %d seconds (from "
1730 : "RADIUS)",
1731 0 : sm->eap_if->aaaMethodTimeout);
1732 : } else {
1733 : /*
1734 : * Use dynamic retransmission behavior per EAP
1735 : * specification.
1736 : */
1737 2607 : sm->eap_if->aaaMethodTimeout = 0;
1738 : }
1739 2607 : break;
1740 : }
1741 :
1742 3266 : ieee802_1x_decapsulate_radius(hapd, sta);
1743 3266 : if (override_eapReq)
1744 658 : sm->eap_if->aaaEapReq = FALSE;
1745 :
1746 3266 : eapol_auth_step(sm);
1747 :
1748 3266 : return RADIUS_RX_QUEUED;
1749 : }
1750 : #endif /* CONFIG_NO_RADIUS */
1751 :
1752 :
1753 1245 : void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
1754 : {
1755 1245 : struct eapol_state_machine *sm = sta->eapol_sm;
1756 1245 : if (sm == NULL)
1757 2467 : return;
1758 :
1759 23 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1760 : HOSTAPD_LEVEL_DEBUG, "aborting authentication");
1761 :
1762 : #ifndef CONFIG_NO_RADIUS
1763 23 : radius_msg_free(sm->last_recv_radius);
1764 23 : sm->last_recv_radius = NULL;
1765 : #endif /* CONFIG_NO_RADIUS */
1766 :
1767 23 : if (sm->eap_if->eapTimeout) {
1768 : /*
1769 : * Disconnect the STA since it did not reply to the last EAP
1770 : * request and we cannot continue EAP processing (EAP-Failure
1771 : * could only be sent if the EAP peer actually replied).
1772 : */
1773 0 : wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "EAP Timeout, STA " MACSTR,
1774 : MAC2STR(sta->addr));
1775 :
1776 0 : sm->eap_if->portEnabled = FALSE;
1777 0 : ap_sta_disconnect(hapd, sta, sta->addr,
1778 : WLAN_REASON_PREV_AUTH_NOT_VALID);
1779 : }
1780 : }
1781 :
1782 :
1783 2 : static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
1784 : {
1785 2 : struct eapol_authenticator *eapol = hapd->eapol_auth;
1786 :
1787 2 : if (hapd->conf->default_wep_key_len < 1)
1788 0 : return 0;
1789 :
1790 2 : os_free(eapol->default_wep_key);
1791 2 : eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
1792 4 : if (eapol->default_wep_key == NULL ||
1793 2 : random_get_bytes(eapol->default_wep_key,
1794 : hapd->conf->default_wep_key_len)) {
1795 0 : wpa_printf(MSG_INFO, "Could not generate random WEP key");
1796 0 : os_free(eapol->default_wep_key);
1797 0 : eapol->default_wep_key = NULL;
1798 0 : return -1;
1799 : }
1800 :
1801 4 : wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
1802 2 : eapol->default_wep_key,
1803 2 : hapd->conf->default_wep_key_len);
1804 :
1805 2 : return 0;
1806 : }
1807 :
1808 :
1809 0 : static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
1810 : struct sta_info *sta, void *ctx)
1811 : {
1812 0 : if (sta->eapol_sm) {
1813 0 : sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1814 0 : eapol_auth_step(sta->eapol_sm);
1815 : }
1816 0 : return 0;
1817 : }
1818 :
1819 :
1820 2 : static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
1821 : {
1822 2 : struct hostapd_data *hapd = eloop_ctx;
1823 2 : struct eapol_authenticator *eapol = hapd->eapol_auth;
1824 :
1825 2 : if (eapol->default_wep_key_idx >= 3)
1826 0 : eapol->default_wep_key_idx =
1827 0 : hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
1828 : else
1829 2 : eapol->default_wep_key_idx++;
1830 :
1831 2 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
1832 2 : eapol->default_wep_key_idx);
1833 :
1834 2 : if (ieee802_1x_rekey_broadcast(hapd)) {
1835 0 : hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1836 : HOSTAPD_LEVEL_WARNING, "failed to generate a "
1837 : "new broadcast key");
1838 0 : os_free(eapol->default_wep_key);
1839 0 : eapol->default_wep_key = NULL;
1840 0 : return;
1841 : }
1842 :
1843 : /* TODO: Could setup key for RX here, but change default TX keyid only
1844 : * after new broadcast key has been sent to all stations. */
1845 4 : if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
1846 : broadcast_ether_addr,
1847 2 : eapol->default_wep_key_idx, 1, NULL, 0,
1848 2 : eapol->default_wep_key,
1849 2 : hapd->conf->default_wep_key_len)) {
1850 0 : hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1851 : HOSTAPD_LEVEL_WARNING, "failed to configure a "
1852 : "new broadcast key");
1853 0 : os_free(eapol->default_wep_key);
1854 0 : eapol->default_wep_key = NULL;
1855 0 : return;
1856 : }
1857 :
1858 2 : ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
1859 :
1860 2 : if (hapd->conf->wep_rekeying_period > 0) {
1861 2 : eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
1862 : ieee802_1x_rekey, hapd, NULL);
1863 : }
1864 : }
1865 :
1866 :
1867 6560 : static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
1868 : const u8 *data, size_t datalen)
1869 : {
1870 : #ifdef CONFIG_WPS
1871 6560 : struct sta_info *sta = sta_ctx;
1872 :
1873 6560 : if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
1874 : WLAN_STA_MAYBE_WPS) {
1875 : const u8 *identity;
1876 : size_t identity_len;
1877 0 : struct eapol_state_machine *sm = sta->eapol_sm;
1878 :
1879 0 : identity = eap_get_identity(sm->eap, &identity_len);
1880 0 : if (identity &&
1881 0 : ((identity_len == WSC_ID_ENROLLEE_LEN &&
1882 0 : os_memcmp(identity, WSC_ID_ENROLLEE,
1883 0 : WSC_ID_ENROLLEE_LEN) == 0) ||
1884 0 : (identity_len == WSC_ID_REGISTRAR_LEN &&
1885 0 : os_memcmp(identity, WSC_ID_REGISTRAR,
1886 : WSC_ID_REGISTRAR_LEN) == 0))) {
1887 0 : wpa_printf(MSG_DEBUG, "WPS: WLAN_STA_MAYBE_WPS -> "
1888 : "WLAN_STA_WPS");
1889 0 : sta->flags |= WLAN_STA_WPS;
1890 : }
1891 : }
1892 : #endif /* CONFIG_WPS */
1893 :
1894 6560 : ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
1895 6560 : }
1896 :
1897 :
1898 3291 : static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
1899 : const u8 *data, size_t datalen)
1900 : {
1901 : #ifndef CONFIG_NO_RADIUS
1902 3291 : struct hostapd_data *hapd = ctx;
1903 3291 : struct sta_info *sta = sta_ctx;
1904 :
1905 3291 : ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
1906 : #endif /* CONFIG_NO_RADIUS */
1907 3291 : }
1908 :
1909 :
1910 1024 : static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
1911 : int preauth, int remediation)
1912 : {
1913 1024 : struct hostapd_data *hapd = ctx;
1914 1024 : struct sta_info *sta = sta_ctx;
1915 1024 : if (preauth)
1916 2 : rsn_preauth_finished(hapd, sta, success);
1917 : else
1918 1022 : ieee802_1x_finished(hapd, sta, success, remediation);
1919 1024 : }
1920 :
1921 :
1922 385 : static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
1923 : size_t identity_len, int phase2,
1924 : struct eap_user *user)
1925 : {
1926 385 : struct hostapd_data *hapd = ctx;
1927 : const struct hostapd_eap_user *eap_user;
1928 : int i;
1929 :
1930 385 : eap_user = hostapd_get_eap_user(hapd, identity, identity_len, phase2);
1931 385 : if (eap_user == NULL)
1932 2 : return -1;
1933 :
1934 383 : os_memset(user, 0, sizeof(*user));
1935 383 : user->phase2 = phase2;
1936 3447 : for (i = 0; i < EAP_MAX_METHODS; i++) {
1937 3064 : user->methods[i].vendor = eap_user->methods[i].vendor;
1938 3064 : user->methods[i].method = eap_user->methods[i].method;
1939 : }
1940 :
1941 383 : if (eap_user->password) {
1942 87 : user->password = os_malloc(eap_user->password_len);
1943 87 : if (user->password == NULL)
1944 0 : return -1;
1945 87 : os_memcpy(user->password, eap_user->password,
1946 : eap_user->password_len);
1947 87 : user->password_len = eap_user->password_len;
1948 87 : user->password_hash = eap_user->password_hash;
1949 : }
1950 383 : user->force_version = eap_user->force_version;
1951 383 : user->macacl = eap_user->macacl;
1952 383 : user->ttls_auth = eap_user->ttls_auth;
1953 383 : user->remediation = eap_user->remediation;
1954 :
1955 383 : return 0;
1956 : }
1957 :
1958 :
1959 264127 : static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
1960 : {
1961 264127 : struct hostapd_data *hapd = ctx;
1962 : struct sta_info *sta;
1963 264127 : sta = ap_get_sta(hapd, addr);
1964 264127 : if (sta == NULL || sta->eapol_sm == NULL)
1965 4888 : return 0;
1966 259239 : return 1;
1967 : }
1968 :
1969 :
1970 7877 : static void ieee802_1x_logger(void *ctx, const u8 *addr,
1971 : eapol_logger_level level, const char *txt)
1972 : {
1973 : #ifndef CONFIG_NO_HOSTAPD_LOGGER
1974 7877 : struct hostapd_data *hapd = ctx;
1975 : int hlevel;
1976 :
1977 7877 : switch (level) {
1978 : case EAPOL_LOGGER_WARNING:
1979 383 : hlevel = HOSTAPD_LEVEL_WARNING;
1980 383 : break;
1981 : case EAPOL_LOGGER_INFO:
1982 936 : hlevel = HOSTAPD_LEVEL_INFO;
1983 936 : break;
1984 : case EAPOL_LOGGER_DEBUG:
1985 : default:
1986 6558 : hlevel = HOSTAPD_LEVEL_DEBUG;
1987 6558 : break;
1988 : }
1989 :
1990 7877 : hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
1991 : txt);
1992 : #endif /* CONFIG_NO_HOSTAPD_LOGGER */
1993 7877 : }
1994 :
1995 :
1996 2261 : static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
1997 : int authorized)
1998 : {
1999 2261 : struct hostapd_data *hapd = ctx;
2000 2261 : struct sta_info *sta = sta_ctx;
2001 2261 : ieee802_1x_set_sta_authorized(hapd, sta, authorized);
2002 2261 : }
2003 :
2004 :
2005 1245 : static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
2006 : {
2007 1245 : struct hostapd_data *hapd = ctx;
2008 1245 : struct sta_info *sta = sta_ctx;
2009 1245 : ieee802_1x_abort_auth(hapd, sta);
2010 1245 : }
2011 :
2012 :
2013 2 : static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
2014 : {
2015 2 : struct hostapd_data *hapd = ctx;
2016 2 : struct sta_info *sta = sta_ctx;
2017 2 : ieee802_1x_tx_key(hapd, sta);
2018 2 : }
2019 :
2020 :
2021 15519 : static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
2022 : enum eapol_event type)
2023 : {
2024 : /* struct hostapd_data *hapd = ctx; */
2025 15519 : struct sta_info *sta = sta_ctx;
2026 15519 : switch (type) {
2027 : case EAPOL_AUTH_SM_CHANGE:
2028 15518 : wpa_auth_sm_notify(sta->wpa_sm);
2029 15518 : break;
2030 : case EAPOL_AUTH_REAUTHENTICATE:
2031 1 : wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
2032 1 : break;
2033 : }
2034 15519 : }
2035 :
2036 :
2037 : #ifdef CONFIG_ERP
2038 :
2039 : static struct eap_server_erp_key *
2040 5 : ieee802_1x_erp_get_key(void *ctx, const char *keyname)
2041 : {
2042 5 : struct hostapd_data *hapd = ctx;
2043 : struct eap_server_erp_key *erp;
2044 :
2045 5 : dl_list_for_each(erp, &hapd->erp_keys, struct eap_server_erp_key,
2046 : list) {
2047 4 : if (os_strcmp(erp->keyname_nai, keyname) == 0)
2048 4 : return erp;
2049 : }
2050 :
2051 1 : return NULL;
2052 : }
2053 :
2054 :
2055 5 : static int ieee802_1x_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
2056 : {
2057 5 : struct hostapd_data *hapd = ctx;
2058 :
2059 5 : dl_list_add(&hapd->erp_keys, &erp->list);
2060 5 : return 0;
2061 : }
2062 :
2063 : #endif /* CONFIG_ERP */
2064 :
2065 :
2066 1248 : int ieee802_1x_init(struct hostapd_data *hapd)
2067 : {
2068 : int i;
2069 : struct eapol_auth_config conf;
2070 : struct eapol_auth_cb cb;
2071 :
2072 1248 : dl_list_init(&hapd->erp_keys);
2073 :
2074 1248 : os_memset(&conf, 0, sizeof(conf));
2075 1248 : conf.ctx = hapd;
2076 1248 : conf.eap_reauth_period = hapd->conf->eap_reauth_period;
2077 1248 : conf.wpa = hapd->conf->wpa;
2078 1248 : conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
2079 1248 : conf.eap_server = hapd->conf->eap_server;
2080 1248 : conf.ssl_ctx = hapd->ssl_ctx;
2081 1248 : conf.msg_ctx = hapd->msg_ctx;
2082 1248 : conf.eap_sim_db_priv = hapd->eap_sim_db_priv;
2083 1248 : conf.eap_req_id_text = hapd->conf->eap_req_id_text;
2084 1248 : conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
2085 1248 : conf.erp_send_reauth_start = hapd->conf->erp_send_reauth_start;
2086 1248 : conf.erp_domain = hapd->conf->erp_domain;
2087 1248 : conf.erp = hapd->conf->eap_server_erp;
2088 1248 : conf.pac_opaque_encr_key = hapd->conf->pac_opaque_encr_key;
2089 1248 : conf.eap_fast_a_id = hapd->conf->eap_fast_a_id;
2090 1248 : conf.eap_fast_a_id_len = hapd->conf->eap_fast_a_id_len;
2091 1248 : conf.eap_fast_a_id_info = hapd->conf->eap_fast_a_id_info;
2092 1248 : conf.eap_fast_prov = hapd->conf->eap_fast_prov;
2093 1248 : conf.pac_key_lifetime = hapd->conf->pac_key_lifetime;
2094 1248 : conf.pac_key_refresh_time = hapd->conf->pac_key_refresh_time;
2095 1248 : conf.eap_sim_aka_result_ind = hapd->conf->eap_sim_aka_result_ind;
2096 1248 : conf.tnc = hapd->conf->tnc;
2097 1248 : conf.wps = hapd->wps;
2098 1248 : conf.fragment_size = hapd->conf->fragment_size;
2099 1248 : conf.pwd_group = hapd->conf->pwd_group;
2100 1248 : conf.pbc_in_m1 = hapd->conf->pbc_in_m1;
2101 1248 : if (hapd->conf->server_id) {
2102 10 : conf.server_id = (const u8 *) hapd->conf->server_id;
2103 10 : conf.server_id_len = os_strlen(hapd->conf->server_id);
2104 : } else {
2105 1238 : conf.server_id = (const u8 *) "hostapd";
2106 1238 : conf.server_id_len = 7;
2107 : }
2108 :
2109 1248 : os_memset(&cb, 0, sizeof(cb));
2110 1248 : cb.eapol_send = ieee802_1x_eapol_send;
2111 1248 : cb.aaa_send = ieee802_1x_aaa_send;
2112 1248 : cb.finished = _ieee802_1x_finished;
2113 1248 : cb.get_eap_user = ieee802_1x_get_eap_user;
2114 1248 : cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
2115 1248 : cb.logger = ieee802_1x_logger;
2116 1248 : cb.set_port_authorized = ieee802_1x_set_port_authorized;
2117 1248 : cb.abort_auth = _ieee802_1x_abort_auth;
2118 1248 : cb.tx_key = _ieee802_1x_tx_key;
2119 1248 : cb.eapol_event = ieee802_1x_eapol_event;
2120 : #ifdef CONFIG_ERP
2121 1248 : cb.erp_get_key = ieee802_1x_erp_get_key;
2122 1248 : cb.erp_add_key = ieee802_1x_erp_add_key;
2123 : #endif /* CONFIG_ERP */
2124 :
2125 1248 : hapd->eapol_auth = eapol_auth_init(&conf, &cb);
2126 1248 : if (hapd->eapol_auth == NULL)
2127 0 : return -1;
2128 :
2129 2104 : if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
2130 856 : hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
2131 0 : return -1;
2132 :
2133 : #ifndef CONFIG_NO_RADIUS
2134 983 : if (radius_client_register(hapd->radius, RADIUS_AUTH,
2135 : ieee802_1x_receive_auth, hapd))
2136 0 : return -1;
2137 : #endif /* CONFIG_NO_RADIUS */
2138 :
2139 1248 : if (hapd->conf->default_wep_key_len) {
2140 10 : for (i = 0; i < 4; i++)
2141 8 : hostapd_drv_set_key(hapd->conf->iface, hapd,
2142 : WPA_ALG_NONE, NULL, i, 0, NULL, 0,
2143 : NULL, 0);
2144 :
2145 2 : ieee802_1x_rekey(hapd, NULL);
2146 :
2147 2 : if (hapd->eapol_auth->default_wep_key == NULL)
2148 0 : return -1;
2149 : }
2150 :
2151 1248 : return 0;
2152 : }
2153 :
2154 :
2155 1253 : void ieee802_1x_erp_flush(struct hostapd_data *hapd)
2156 : {
2157 : struct eap_server_erp_key *erp;
2158 :
2159 2511 : while ((erp = dl_list_first(&hapd->erp_keys, struct eap_server_erp_key,
2160 : list)) != NULL) {
2161 5 : dl_list_del(&erp->list);
2162 5 : bin_clear_free(erp, sizeof(*erp));
2163 : }
2164 1253 : }
2165 :
2166 :
2167 1252 : void ieee802_1x_deinit(struct hostapd_data *hapd)
2168 : {
2169 1252 : eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
2170 :
2171 2504 : if (hapd->driver != NULL &&
2172 2115 : (hapd->conf->ieee802_1x || hapd->conf->wpa))
2173 881 : hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
2174 :
2175 1252 : eapol_auth_deinit(hapd->eapol_auth);
2176 1252 : hapd->eapol_auth = NULL;
2177 :
2178 1252 : ieee802_1x_erp_flush(hapd);
2179 1252 : }
2180 :
2181 :
2182 1415 : int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2183 : const u8 *buf, size_t len, int ack)
2184 : {
2185 : struct ieee80211_hdr *hdr;
2186 : u8 *pos;
2187 1415 : const unsigned char rfc1042_hdr[ETH_ALEN] =
2188 : { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
2189 :
2190 1415 : if (sta == NULL)
2191 0 : return -1;
2192 1415 : if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2)
2193 347 : return 0;
2194 :
2195 1068 : hdr = (struct ieee80211_hdr *) buf;
2196 1068 : pos = (u8 *) (hdr + 1);
2197 1068 : if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
2198 1068 : return 0;
2199 0 : pos += sizeof(rfc1042_hdr);
2200 0 : if (WPA_GET_BE16(pos) != ETH_P_PAE)
2201 0 : return 0;
2202 0 : pos += 2;
2203 :
2204 0 : return ieee802_1x_eapol_tx_status(hapd, sta, pos, buf + len - pos,
2205 : ack);
2206 : }
2207 :
2208 :
2209 7352 : int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2210 : const u8 *buf, int len, int ack)
2211 : {
2212 7352 : const struct ieee802_1x_hdr *xhdr =
2213 : (const struct ieee802_1x_hdr *) buf;
2214 7352 : const u8 *pos = buf + sizeof(*xhdr);
2215 : struct ieee802_1x_eapol_key *key;
2216 :
2217 7352 : if (len < (int) sizeof(*xhdr))
2218 0 : return 0;
2219 66168 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR " TX status - version=%d "
2220 : "type=%d length=%d - ack=%d",
2221 58816 : MAC2STR(sta->addr), xhdr->version, xhdr->type,
2222 7352 : be_to_host16(xhdr->length), ack);
2223 :
2224 7352 : if (xhdr->type != IEEE802_1X_TYPE_EAPOL_KEY)
2225 5143 : return 0;
2226 :
2227 2209 : if (pos + sizeof(struct wpa_eapol_key) <= buf + len) {
2228 : const struct wpa_eapol_key *wpa;
2229 2205 : wpa = (const struct wpa_eapol_key *) pos;
2230 2269 : if (wpa->type == EAPOL_KEY_TYPE_RSN ||
2231 64 : wpa->type == EAPOL_KEY_TYPE_WPA)
2232 2205 : wpa_auth_eapol_key_tx_status(hapd->wpa_auth,
2233 : sta->wpa_sm, ack);
2234 : }
2235 :
2236 : /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
2237 : * or Authenticator state machines, but EAPOL-Key packets are not
2238 : * retransmitted in case of failure. Try to re-send failed EAPOL-Key
2239 : * packets couple of times because otherwise STA keys become
2240 : * unsynchronized with AP. */
2241 2209 : if (!ack && pos + sizeof(*key) <= buf + len) {
2242 1 : key = (struct ieee802_1x_eapol_key *) pos;
2243 2 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
2244 : HOSTAPD_LEVEL_DEBUG, "did not Ack EAPOL-Key "
2245 : "frame (%scast index=%d)",
2246 1 : key->key_index & BIT(7) ? "uni" : "broad",
2247 1 : key->key_index & ~BIT(7));
2248 : /* TODO: re-send EAPOL-Key couple of times (with short delay
2249 : * between them?). If all attempt fail, report error and
2250 : * deauthenticate STA so that it will get new keys when
2251 : * authenticating again (e.g., after returning in range).
2252 : * Separate limit/transmit state needed both for unicast and
2253 : * broadcast keys(?) */
2254 : }
2255 : /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
2256 : * to here and change the key only if the EAPOL-Key packet was Acked.
2257 : */
2258 :
2259 2209 : return 1;
2260 : }
2261 :
2262 :
2263 390 : u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
2264 : {
2265 390 : if (sm == NULL || sm->identity == NULL)
2266 6 : return NULL;
2267 :
2268 384 : *len = sm->identity_len;
2269 384 : return sm->identity;
2270 : }
2271 :
2272 :
2273 395 : u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
2274 : int idx)
2275 : {
2276 419 : if (sm == NULL || sm->radius_class.attr == NULL ||
2277 24 : idx >= (int) sm->radius_class.count)
2278 383 : return NULL;
2279 :
2280 12 : *len = sm->radius_class.attr[idx].len;
2281 12 : return sm->radius_class.attr[idx].data;
2282 : }
2283 :
2284 :
2285 386 : struct wpabuf * ieee802_1x_get_radius_cui(struct eapol_state_machine *sm)
2286 : {
2287 386 : if (sm == NULL)
2288 6 : return NULL;
2289 380 : return sm->radius_cui;
2290 : }
2291 :
2292 :
2293 1639 : const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
2294 : {
2295 1639 : *len = 0;
2296 1639 : if (sm == NULL)
2297 0 : return NULL;
2298 :
2299 1639 : *len = sm->eap_if->eapKeyDataLen;
2300 1639 : return sm->eap_if->eapKeyData;
2301 : }
2302 :
2303 :
2304 9471 : void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
2305 : int enabled)
2306 : {
2307 9471 : if (sm == NULL)
2308 13304 : return;
2309 5638 : sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
2310 5638 : eapol_auth_step(sm);
2311 : }
2312 :
2313 :
2314 4290 : void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
2315 : int valid)
2316 : {
2317 4290 : if (sm == NULL)
2318 6101 : return;
2319 2479 : sm->portValid = valid ? TRUE : FALSE;
2320 2479 : eapol_auth_step(sm);
2321 : }
2322 :
2323 :
2324 2528 : void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
2325 : {
2326 2528 : if (sm == NULL)
2327 5006 : return;
2328 50 : if (pre_auth)
2329 0 : sm->flags |= EAPOL_SM_PREAUTH;
2330 : else
2331 50 : sm->flags &= ~EAPOL_SM_PREAUTH;
2332 : }
2333 :
2334 :
2335 14 : static const char * bool_txt(Boolean bool)
2336 : {
2337 14 : return bool ? "TRUE" : "FALSE";
2338 : }
2339 :
2340 :
2341 8 : int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2342 : {
2343 : /* TODO */
2344 8 : return 0;
2345 : }
2346 :
2347 :
2348 50 : int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2349 : char *buf, size_t buflen)
2350 : {
2351 50 : int len = 0, ret;
2352 50 : struct eapol_state_machine *sm = sta->eapol_sm;
2353 : struct os_reltime diff;
2354 : const char *name1;
2355 : const char *name2;
2356 :
2357 50 : if (sm == NULL)
2358 43 : return 0;
2359 :
2360 7 : ret = os_snprintf(buf + len, buflen - len,
2361 : "dot1xPaePortNumber=%d\n"
2362 : "dot1xPaePortProtocolVersion=%d\n"
2363 : "dot1xPaePortCapabilities=1\n"
2364 : "dot1xPaePortInitialize=%d\n"
2365 : "dot1xPaePortReauthenticate=FALSE\n",
2366 7 : sta->aid,
2367 : EAPOL_VERSION,
2368 7 : sm->initialize);
2369 7 : if (os_snprintf_error(buflen - len, ret))
2370 0 : return len;
2371 7 : len += ret;
2372 :
2373 : /* dot1xAuthConfigTable */
2374 21 : ret = os_snprintf(buf + len, buflen - len,
2375 : "dot1xAuthPaeState=%d\n"
2376 : "dot1xAuthBackendAuthState=%d\n"
2377 : "dot1xAuthAdminControlledDirections=%d\n"
2378 : "dot1xAuthOperControlledDirections=%d\n"
2379 : "dot1xAuthAuthControlledPortStatus=%d\n"
2380 : "dot1xAuthAuthControlledPortControl=%d\n"
2381 : "dot1xAuthQuietPeriod=%u\n"
2382 : "dot1xAuthServerTimeout=%u\n"
2383 : "dot1xAuthReAuthPeriod=%u\n"
2384 : "dot1xAuthReAuthEnabled=%s\n"
2385 : "dot1xAuthKeyTxEnabled=%s\n",
2386 7 : sm->auth_pae_state + 1,
2387 7 : sm->be_auth_state + 1,
2388 7 : sm->adminControlledDirections,
2389 7 : sm->operControlledDirections,
2390 7 : sm->authPortStatus,
2391 7 : sm->portControl,
2392 : sm->quietPeriod,
2393 : sm->serverTimeout,
2394 : sm->reAuthPeriod,
2395 : bool_txt(sm->reAuthEnabled),
2396 : bool_txt(sm->keyTxEnabled));
2397 7 : if (os_snprintf_error(buflen - len, ret))
2398 0 : return len;
2399 7 : len += ret;
2400 :
2401 : /* dot1xAuthStatsTable */
2402 42 : ret = os_snprintf(buf + len, buflen - len,
2403 : "dot1xAuthEapolFramesRx=%u\n"
2404 : "dot1xAuthEapolFramesTx=%u\n"
2405 : "dot1xAuthEapolStartFramesRx=%u\n"
2406 : "dot1xAuthEapolLogoffFramesRx=%u\n"
2407 : "dot1xAuthEapolRespIdFramesRx=%u\n"
2408 : "dot1xAuthEapolRespFramesRx=%u\n"
2409 : "dot1xAuthEapolReqIdFramesTx=%u\n"
2410 : "dot1xAuthEapolReqFramesTx=%u\n"
2411 : "dot1xAuthInvalidEapolFramesRx=%u\n"
2412 : "dot1xAuthEapLengthErrorFramesRx=%u\n"
2413 : "dot1xAuthLastEapolFrameVersion=%u\n"
2414 : "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
2415 : sm->dot1xAuthEapolFramesRx,
2416 : sm->dot1xAuthEapolFramesTx,
2417 : sm->dot1xAuthEapolStartFramesRx,
2418 : sm->dot1xAuthEapolLogoffFramesRx,
2419 : sm->dot1xAuthEapolRespIdFramesRx,
2420 : sm->dot1xAuthEapolRespFramesRx,
2421 : sm->dot1xAuthEapolReqIdFramesTx,
2422 : sm->dot1xAuthEapolReqFramesTx,
2423 : sm->dot1xAuthInvalidEapolFramesRx,
2424 : sm->dot1xAuthEapLengthErrorFramesRx,
2425 : sm->dot1xAuthLastEapolFrameVersion,
2426 42 : MAC2STR(sm->addr));
2427 7 : if (os_snprintf_error(buflen - len, ret))
2428 0 : return len;
2429 7 : len += ret;
2430 :
2431 : /* dot1xAuthDiagTable */
2432 7 : ret = os_snprintf(buf + len, buflen - len,
2433 : "dot1xAuthEntersConnecting=%u\n"
2434 : "dot1xAuthEapLogoffsWhileConnecting=%u\n"
2435 : "dot1xAuthEntersAuthenticating=%u\n"
2436 : "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
2437 : "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
2438 : "dot1xAuthAuthFailWhileAuthenticating=%u\n"
2439 : "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
2440 : "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
2441 : "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
2442 : "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
2443 : "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
2444 : "dot1xAuthBackendResponses=%u\n"
2445 : "dot1xAuthBackendAccessChallenges=%u\n"
2446 : "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
2447 : "dot1xAuthBackendAuthSuccesses=%u\n"
2448 : "dot1xAuthBackendAuthFails=%u\n",
2449 : sm->authEntersConnecting,
2450 : sm->authEapLogoffsWhileConnecting,
2451 : sm->authEntersAuthenticating,
2452 : sm->authAuthSuccessesWhileAuthenticating,
2453 : sm->authAuthTimeoutsWhileAuthenticating,
2454 : sm->authAuthFailWhileAuthenticating,
2455 : sm->authAuthEapStartsWhileAuthenticating,
2456 : sm->authAuthEapLogoffWhileAuthenticating,
2457 : sm->authAuthReauthsWhileAuthenticated,
2458 : sm->authAuthEapStartsWhileAuthenticated,
2459 : sm->authAuthEapLogoffWhileAuthenticated,
2460 : sm->backendResponses,
2461 : sm->backendAccessChallenges,
2462 : sm->backendOtherRequestsToSupplicant,
2463 : sm->backendAuthSuccesses,
2464 : sm->backendAuthFails);
2465 7 : if (os_snprintf_error(buflen - len, ret))
2466 0 : return len;
2467 7 : len += ret;
2468 :
2469 : /* dot1xAuthSessionStatsTable */
2470 7 : os_reltime_age(&sta->acct_session_start, &diff);
2471 21 : ret = os_snprintf(buf + len, buflen - len,
2472 : /* TODO: dot1xAuthSessionOctetsRx */
2473 : /* TODO: dot1xAuthSessionOctetsTx */
2474 : /* TODO: dot1xAuthSessionFramesRx */
2475 : /* TODO: dot1xAuthSessionFramesTx */
2476 : "dot1xAuthSessionId=%08X-%08X\n"
2477 : "dot1xAuthSessionAuthenticMethod=%d\n"
2478 : "dot1xAuthSessionTime=%u\n"
2479 : "dot1xAuthSessionTerminateCause=999\n"
2480 : "dot1xAuthSessionUserName=%s\n",
2481 : sta->acct_session_id_hi, sta->acct_session_id_lo,
2482 7 : (wpa_key_mgmt_wpa_ieee8021x(
2483 : wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
2484 : 1 : 2,
2485 7 : (unsigned int) diff.sec,
2486 : sm->identity);
2487 7 : if (os_snprintf_error(buflen - len, ret))
2488 0 : return len;
2489 7 : len += ret;
2490 :
2491 7 : if (sm->acct_multi_session_id_hi) {
2492 7 : ret = os_snprintf(buf + len, buflen - len,
2493 : "authMultiSessionId=%08X+%08X\n",
2494 : sm->acct_multi_session_id_hi,
2495 : sm->acct_multi_session_id_lo);
2496 7 : if (os_snprintf_error(buflen - len, ret))
2497 0 : return len;
2498 7 : len += ret;
2499 : }
2500 :
2501 7 : name1 = eap_server_get_name(0, sm->eap_type_authsrv);
2502 7 : name2 = eap_server_get_name(0, sm->eap_type_supp);
2503 14 : ret = os_snprintf(buf + len, buflen - len,
2504 : "last_eap_type_as=%d (%s)\n"
2505 : "last_eap_type_sta=%d (%s)\n",
2506 7 : sm->eap_type_authsrv, name1,
2507 7 : sm->eap_type_supp, name2);
2508 7 : if (os_snprintf_error(buflen - len, ret))
2509 0 : return len;
2510 7 : len += ret;
2511 :
2512 7 : return len;
2513 : }
2514 :
2515 :
2516 1022 : static void ieee802_1x_finished(struct hostapd_data *hapd,
2517 : struct sta_info *sta, int success,
2518 : int remediation)
2519 : {
2520 : const u8 *key;
2521 : size_t len;
2522 : /* TODO: get PMKLifetime from WPA parameters */
2523 : static const int dot11RSNAConfigPMKLifetime = 43200;
2524 : unsigned int session_timeout;
2525 :
2526 : #ifdef CONFIG_HS20
2527 1022 : if (remediation && !sta->remediation) {
2528 0 : sta->remediation = 1;
2529 0 : os_free(sta->remediation_url);
2530 0 : sta->remediation_url =
2531 0 : os_strdup(hapd->conf->subscr_remediation_url);
2532 0 : sta->remediation_method = 1; /* SOAP-XML SPP */
2533 : }
2534 :
2535 1022 : if (success) {
2536 637 : if (sta->remediation) {
2537 12 : wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification "
2538 : "to " MACSTR " to indicate Subscription "
2539 : "Remediation",
2540 12 : MAC2STR(sta->addr));
2541 2 : hs20_send_wnm_notification(hapd, sta->addr,
2542 2 : sta->remediation_method,
2543 2 : sta->remediation_url);
2544 2 : os_free(sta->remediation_url);
2545 2 : sta->remediation_url = NULL;
2546 : }
2547 :
2548 637 : if (sta->hs20_deauth_req) {
2549 6 : wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification "
2550 : "to " MACSTR " to indicate imminent "
2551 6 : "deauthentication", MAC2STR(sta->addr));
2552 1 : hs20_send_wnm_notification_deauth_req(
2553 1 : hapd, sta->addr, sta->hs20_deauth_req);
2554 : }
2555 : }
2556 : #endif /* CONFIG_HS20 */
2557 :
2558 1022 : key = ieee802_1x_get_key(sta->eapol_sm, &len);
2559 1022 : if (sta->session_timeout_set)
2560 11 : session_timeout = sta->session_timeout;
2561 : else
2562 1011 : session_timeout = dot11RSNAConfigPMKLifetime;
2563 1628 : if (success && key && len >= PMK_LEN && !sta->remediation &&
2564 1211 : !sta->hs20_deauth_requested &&
2565 605 : wpa_auth_pmksa_add(sta->wpa_sm, key, session_timeout,
2566 : sta->eapol_sm) == 0) {
2567 552 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
2568 : HOSTAPD_LEVEL_DEBUG,
2569 : "Added PMKSA cache entry (IEEE 802.1X)");
2570 : }
2571 :
2572 1022 : if (!success) {
2573 : /*
2574 : * Many devices require deauthentication after WPS provisioning
2575 : * and some may not be be able to do that themselves, so
2576 : * disconnect the client here. In addition, this may also
2577 : * benefit IEEE 802.1X/EAPOL authentication cases, too since
2578 : * the EAPOL PAE state machine would remain in HELD state for
2579 : * considerable amount of time and some EAP methods, like
2580 : * EAP-FAST with anonymous provisioning, may require another
2581 : * EAPOL authentication to be started to complete connection.
2582 : */
2583 385 : wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "IEEE 802.1X: Force "
2584 : "disconnection after EAP-Failure");
2585 : /* Add a small sleep to increase likelihood of previously
2586 : * requested EAP-Failure TX getting out before this should the
2587 : * driver reorder operations.
2588 : */
2589 385 : os_sleep(0, 10000);
2590 385 : ap_sta_disconnect(hapd, sta, sta->addr,
2591 : WLAN_REASON_IEEE_802_1X_AUTH_FAILED);
2592 385 : hostapd_wps_eap_completed(hapd);
2593 : }
2594 1022 : }
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