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 8383 : 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 8383 : int encrypt = 0;
49 :
50 8383 : len = sizeof(*xhdr) + datalen;
51 8383 : buf = os_zalloc(len);
52 8383 : if (buf == NULL) {
53 6 : wpa_printf(MSG_ERROR, "malloc() failed for "
54 : "ieee802_1x_send(len=%lu)",
55 : (unsigned long) len);
56 8389 : return;
57 : }
58 :
59 8377 : xhdr = (struct ieee802_1x_hdr *) buf;
60 8377 : xhdr->version = hapd->conf->eapol_version;
61 8377 : xhdr->type = type;
62 8377 : xhdr->length = host_to_be16(datalen);
63 :
64 8377 : if (datalen > 0 && data != NULL)
65 8377 : os_memcpy(xhdr + 1, data, datalen);
66 :
67 8377 : if (wpa_auth_pairwise_set(sta->wpa_sm))
68 459 : encrypt = 1;
69 : #ifdef CONFIG_TESTING_OPTIONS
70 8377 : if (hapd->ext_eapol_frame_io) {
71 403 : size_t hex_len = 2 * len + 1;
72 403 : char *hex = os_malloc(hex_len);
73 :
74 403 : if (hex) {
75 403 : wpa_snprintf_hex(hex, hex_len, buf, len);
76 2418 : wpa_msg(hapd->msg_ctx, MSG_INFO,
77 : "EAPOL-TX " MACSTR " %s",
78 2418 : MAC2STR(sta->addr), hex);
79 403 : os_free(hex);
80 : }
81 : } else
82 : #endif /* CONFIG_TESTING_OPTIONS */
83 7974 : if (sta->flags & WLAN_STA_PREAUTH) {
84 18 : rsn_preauth_send(hapd, sta, buf, len);
85 : } else {
86 15912 : hostapd_drv_hapd_send_eapol(
87 7956 : hapd, sta->addr, buf, len,
88 : encrypt, hostapd_sta_flags_to_drv(sta->flags));
89 : }
90 :
91 8377 : os_free(buf);
92 : }
93 :
94 :
95 5149 : void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
96 : struct sta_info *sta, int authorized)
97 : {
98 : int res;
99 :
100 5149 : if (sta->flags & WLAN_STA_PREAUTH)
101 5159 : return;
102 :
103 5139 : if (authorized) {
104 1563 : ap_sta_set_authorized(hapd, sta, 1);
105 1563 : res = hostapd_set_authorized(hapd, sta, 1);
106 1563 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
107 : HOSTAPD_LEVEL_DEBUG, "authorizing port");
108 : } else {
109 3576 : ap_sta_set_authorized(hapd, sta, 0);
110 3576 : res = hostapd_set_authorized(hapd, sta, 0);
111 3576 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
112 : HOSTAPD_LEVEL_DEBUG, "unauthorizing port");
113 : }
114 :
115 5139 : 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 5139 : if (authorized) {
122 1563 : os_get_reltime(&sta->connected_time);
123 1563 : accounting_sta_start(hapd, sta);
124 : }
125 : }
126 :
127 :
128 : #ifndef CONFIG_FIPS
129 : #ifndef CONFIG_NO_RC4
130 :
131 6 : static void ieee802_1x_tx_key_one(struct hostapd_data *hapd,
132 : struct sta_info *sta,
133 : int idx, int broadcast,
134 : u8 *key_data, size_t key_len)
135 : {
136 : u8 *buf, *ekey;
137 : struct ieee802_1x_hdr *hdr;
138 : struct ieee802_1x_eapol_key *key;
139 : size_t len, ekey_len;
140 6 : struct eapol_state_machine *sm = sta->eapol_sm;
141 :
142 6 : if (sm == NULL)
143 0 : return;
144 :
145 6 : len = sizeof(*key) + key_len;
146 6 : buf = os_zalloc(sizeof(*hdr) + len);
147 6 : if (buf == NULL)
148 0 : return;
149 :
150 6 : hdr = (struct ieee802_1x_hdr *) buf;
151 6 : key = (struct ieee802_1x_eapol_key *) (hdr + 1);
152 6 : key->type = EAPOL_KEY_TYPE_RC4;
153 6 : WPA_PUT_BE16(key->key_length, key_len);
154 6 : wpa_get_ntp_timestamp(key->replay_counter);
155 :
156 6 : if (random_get_bytes(key->key_iv, sizeof(key->key_iv))) {
157 0 : wpa_printf(MSG_ERROR, "Could not get random numbers");
158 0 : os_free(buf);
159 0 : return;
160 : }
161 :
162 6 : key->key_index = idx | (broadcast ? 0 : BIT(7));
163 6 : if (hapd->conf->eapol_key_index_workaround) {
164 : /* According to some information, WinXP Supplicant seems to
165 : * interpret bit7 as an indication whether the key is to be
166 : * activated, so make it possible to enable workaround that
167 : * sets this bit for all keys. */
168 0 : key->key_index |= BIT(7);
169 : }
170 :
171 : /* Key is encrypted using "Key-IV + MSK[0..31]" as the RC4-key and
172 : * MSK[32..63] is used to sign the message. */
173 6 : if (sm->eap_if->eapKeyData == NULL || sm->eap_if->eapKeyDataLen < 64) {
174 0 : wpa_printf(MSG_ERROR, "No eapKeyData available for encrypting "
175 : "and signing EAPOL-Key");
176 0 : os_free(buf);
177 0 : return;
178 : }
179 6 : os_memcpy((u8 *) (key + 1), key_data, key_len);
180 6 : ekey_len = sizeof(key->key_iv) + 32;
181 6 : ekey = os_malloc(ekey_len);
182 6 : if (ekey == NULL) {
183 0 : wpa_printf(MSG_ERROR, "Could not encrypt key");
184 0 : os_free(buf);
185 0 : return;
186 : }
187 6 : os_memcpy(ekey, key->key_iv, sizeof(key->key_iv));
188 6 : os_memcpy(ekey + sizeof(key->key_iv), sm->eap_if->eapKeyData, 32);
189 6 : rc4_skip(ekey, ekey_len, 0, (u8 *) (key + 1), key_len);
190 6 : os_free(ekey);
191 :
192 : /* This header is needed here for HMAC-MD5, but it will be regenerated
193 : * in ieee802_1x_send() */
194 6 : hdr->version = hapd->conf->eapol_version;
195 6 : hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
196 6 : hdr->length = host_to_be16(len);
197 6 : hmac_md5(sm->eap_if->eapKeyData + 32, 32, buf, sizeof(*hdr) + len,
198 6 : key->key_signature);
199 :
200 42 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key to " MACSTR
201 36 : " (%s index=%d)", MAC2STR(sm->addr),
202 : broadcast ? "broadcast" : "unicast", idx);
203 6 : ieee802_1x_send(hapd, sta, IEEE802_1X_TYPE_EAPOL_KEY, (u8 *) key, len);
204 6 : if (sta->eapol_sm)
205 6 : sta->eapol_sm->dot1xAuthEapolFramesTx++;
206 6 : os_free(buf);
207 : }
208 :
209 :
210 4 : static void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta)
211 : {
212 4 : struct eapol_authenticator *eapol = hapd->eapol_auth;
213 4 : struct eapol_state_machine *sm = sta->eapol_sm;
214 :
215 4 : if (sm == NULL || !sm->eap_if->eapKeyData)
216 0 : return;
217 :
218 24 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key(s) to " MACSTR,
219 24 : MAC2STR(sta->addr));
220 :
221 : #ifndef CONFIG_NO_VLAN
222 4 : if (sta->vlan_id > 0 && sta->vlan_id <= MAX_VLAN_ID) {
223 0 : wpa_printf(MSG_ERROR, "Using WEP with vlans is not supported.");
224 0 : return;
225 : }
226 : #endif /* CONFIG_NO_VLAN */
227 :
228 4 : if (eapol->default_wep_key) {
229 3 : ieee802_1x_tx_key_one(hapd, sta, eapol->default_wep_key_idx, 1,
230 : eapol->default_wep_key,
231 3 : hapd->conf->default_wep_key_len);
232 : }
233 :
234 4 : if (hapd->conf->individual_wep_key_len > 0) {
235 : u8 *ikey;
236 3 : ikey = os_malloc(hapd->conf->individual_wep_key_len);
237 6 : if (ikey == NULL ||
238 3 : random_get_bytes(ikey, hapd->conf->individual_wep_key_len))
239 : {
240 0 : wpa_printf(MSG_ERROR, "Could not generate random "
241 : "individual WEP key.");
242 0 : os_free(ikey);
243 0 : return;
244 : }
245 :
246 3 : wpa_hexdump_key(MSG_DEBUG, "Individual WEP key",
247 3 : ikey, hapd->conf->individual_wep_key_len);
248 :
249 3 : ieee802_1x_tx_key_one(hapd, sta, 0, 0, ikey,
250 3 : hapd->conf->individual_wep_key_len);
251 :
252 : /* TODO: set encryption in TX callback, i.e., only after STA
253 : * has ACKed EAPOL-Key frame */
254 6 : if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
255 3 : sta->addr, 0, 1, NULL, 0, ikey,
256 3 : hapd->conf->individual_wep_key_len)) {
257 0 : wpa_printf(MSG_ERROR, "Could not set individual WEP "
258 : "encryption.");
259 : }
260 :
261 3 : os_free(ikey);
262 : }
263 : }
264 :
265 : #endif /* CONFIG_NO_RC4 */
266 : #endif /* CONFIG_FIPS */
267 :
268 :
269 4191 : const char *radius_mode_txt(struct hostapd_data *hapd)
270 : {
271 4191 : switch (hapd->iface->conf->hw_mode) {
272 : case HOSTAPD_MODE_IEEE80211AD:
273 0 : return "802.11ad";
274 : case HOSTAPD_MODE_IEEE80211A:
275 0 : return "802.11a";
276 : case HOSTAPD_MODE_IEEE80211G:
277 4191 : return "802.11g";
278 : case HOSTAPD_MODE_IEEE80211B:
279 : default:
280 0 : return "802.11b";
281 : }
282 : }
283 :
284 :
285 8382 : int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta)
286 : {
287 : int i;
288 8382 : u8 rate = 0;
289 :
290 108966 : for (i = 0; i < sta->supported_rates_len; i++)
291 100584 : if ((sta->supported_rates[i] & 0x7f) > rate)
292 83820 : rate = sta->supported_rates[i] & 0x7f;
293 :
294 8382 : return rate;
295 : }
296 :
297 :
298 : #ifndef CONFIG_NO_RADIUS
299 3768 : static void ieee802_1x_learn_identity(struct hostapd_data *hapd,
300 : struct eapol_state_machine *sm,
301 : const u8 *eap, size_t len)
302 : {
303 : const u8 *identity;
304 : size_t identity_len;
305 3768 : const struct eap_hdr *hdr = (const struct eap_hdr *) eap;
306 :
307 7536 : if (len <= sizeof(struct eap_hdr) ||
308 7520 : (hdr->code == EAP_CODE_RESPONSE &&
309 4819 : eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY) ||
310 1083 : (hdr->code == EAP_CODE_INITIATE &&
311 1083 : eap[sizeof(struct eap_hdr)] != EAP_ERP_TYPE_REAUTH) ||
312 1083 : (hdr->code != EAP_CODE_RESPONSE &&
313 16 : hdr->code != EAP_CODE_INITIATE))
314 5402 : return;
315 :
316 1067 : identity = eap_get_identity(sm->eap, &identity_len);
317 1067 : if (identity == NULL)
318 0 : return;
319 :
320 : /* Save station identity for future RADIUS packets */
321 1067 : os_free(sm->identity);
322 1067 : sm->identity = (u8 *) dup_binstr(identity, identity_len);
323 1067 : if (sm->identity == NULL) {
324 0 : sm->identity_len = 0;
325 0 : return;
326 : }
327 :
328 1067 : sm->identity_len = identity_len;
329 1067 : hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
330 : HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity);
331 1067 : sm->dot1xAuthEapolRespIdFramesRx++;
332 : }
333 :
334 :
335 4130 : static int add_common_radius_sta_attr_rsn(struct hostapd_data *hapd,
336 : struct hostapd_radius_attr *req_attr,
337 : struct sta_info *sta,
338 : struct radius_msg *msg)
339 : {
340 : u32 suite;
341 : int ver, val;
342 :
343 4130 : ver = wpa_auth_sta_wpa_version(sta->wpa_sm);
344 4130 : val = wpa_auth_get_pairwise(sta->wpa_sm);
345 4130 : suite = wpa_cipher_to_suite(ver, val);
346 8260 : if (val != -1 &&
347 4130 : !hostapd_config_get_radius_attr(req_attr,
348 4130 : RADIUS_ATTR_WLAN_PAIRWISE_CIPHER) &&
349 4130 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_PAIRWISE_CIPHER,
350 : suite)) {
351 0 : wpa_printf(MSG_ERROR, "Could not add WLAN-Pairwise-Cipher");
352 0 : return -1;
353 : }
354 :
355 4160 : suite = wpa_cipher_to_suite(((hapd->conf->wpa & 0x2) ||
356 30 : hapd->conf->osen) ?
357 : WPA_PROTO_RSN : WPA_PROTO_WPA,
358 4130 : hapd->conf->wpa_group);
359 4130 : if (!hostapd_config_get_radius_attr(req_attr,
360 4130 : RADIUS_ATTR_WLAN_GROUP_CIPHER) &&
361 4130 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_GROUP_CIPHER,
362 : suite)) {
363 0 : wpa_printf(MSG_ERROR, "Could not add WLAN-Group-Cipher");
364 0 : return -1;
365 : }
366 :
367 4130 : val = wpa_auth_sta_key_mgmt(sta->wpa_sm);
368 4130 : suite = wpa_akm_to_suite(val);
369 8260 : if (val != -1 &&
370 4130 : !hostapd_config_get_radius_attr(req_attr,
371 4130 : RADIUS_ATTR_WLAN_AKM_SUITE) &&
372 4130 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_AKM_SUITE,
373 : suite)) {
374 0 : wpa_printf(MSG_ERROR, "Could not add WLAN-AKM-Suite");
375 0 : return -1;
376 : }
377 :
378 : #ifdef CONFIG_IEEE80211W
379 4130 : if (hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
380 634 : suite = wpa_cipher_to_suite(WPA_PROTO_RSN,
381 634 : hapd->conf->group_mgmt_cipher);
382 634 : if (!hostapd_config_get_radius_attr(
383 634 : req_attr, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER) &&
384 634 : !radius_msg_add_attr_int32(
385 : msg, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER, suite)) {
386 0 : wpa_printf(MSG_ERROR,
387 : "Could not add WLAN-Group-Mgmt-Cipher");
388 0 : return -1;
389 : }
390 : }
391 : #endif /* CONFIG_IEEE80211W */
392 :
393 4130 : return 0;
394 : }
395 :
396 :
397 4203 : static int add_common_radius_sta_attr(struct hostapd_data *hapd,
398 : struct hostapd_radius_attr *req_attr,
399 : struct sta_info *sta,
400 : struct radius_msg *msg)
401 : {
402 : char buf[128];
403 :
404 4203 : if (!hostapd_config_get_radius_attr(req_attr,
405 4203 : RADIUS_ATTR_NAS_PORT) &&
406 4203 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
407 0 : wpa_printf(MSG_ERROR, "Could not add NAS-Port");
408 0 : return -1;
409 : }
410 :
411 25218 : os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
412 25218 : MAC2STR(sta->addr));
413 4203 : buf[sizeof(buf) - 1] = '\0';
414 4203 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
415 : (u8 *) buf, os_strlen(buf))) {
416 0 : wpa_printf(MSG_ERROR, "Could not add Calling-Station-Id");
417 0 : return -1;
418 : }
419 :
420 4203 : if (sta->flags & WLAN_STA_PREAUTH) {
421 12 : os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
422 : sizeof(buf));
423 : } else {
424 12573 : os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
425 4191 : radius_sta_rate(hapd, sta) / 2,
426 4191 : (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
427 : radius_mode_txt(hapd));
428 4191 : buf[sizeof(buf) - 1] = '\0';
429 : }
430 4203 : if (!hostapd_config_get_radius_attr(req_attr,
431 4188 : RADIUS_ATTR_CONNECT_INFO) &&
432 4188 : !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
433 : (u8 *) buf, os_strlen(buf))) {
434 0 : wpa_printf(MSG_ERROR, "Could not add Connect-Info");
435 0 : return -1;
436 : }
437 :
438 4203 : if (sta->acct_session_id_hi || sta->acct_session_id_lo) {
439 4203 : os_snprintf(buf, sizeof(buf), "%08X-%08X",
440 : sta->acct_session_id_hi, sta->acct_session_id_lo);
441 4203 : if (!radius_msg_add_attr(msg, RADIUS_ATTR_ACCT_SESSION_ID,
442 : (u8 *) buf, os_strlen(buf))) {
443 0 : wpa_printf(MSG_ERROR, "Could not add Acct-Session-Id");
444 0 : return -1;
445 : }
446 : }
447 :
448 : #ifdef CONFIG_IEEE80211R
449 4215 : if (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) &&
450 24 : sta->wpa_sm &&
451 12 : (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm)) ||
452 12 : sta->auth_alg == WLAN_AUTH_FT) &&
453 12 : !hostapd_config_get_radius_attr(req_attr,
454 12 : RADIUS_ATTR_MOBILITY_DOMAIN_ID) &&
455 12 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_MOBILITY_DOMAIN_ID,
456 12 : WPA_GET_BE16(
457 12 : hapd->conf->mobility_domain))) {
458 0 : wpa_printf(MSG_ERROR, "Could not add Mobility-Domain-Id");
459 0 : return -1;
460 : }
461 : #endif /* CONFIG_IEEE80211R */
462 :
463 8333 : if ((hapd->conf->wpa || hapd->conf->osen) && sta->wpa_sm &&
464 4130 : add_common_radius_sta_attr_rsn(hapd, req_attr, sta, msg) < 0)
465 0 : return -1;
466 :
467 4203 : return 0;
468 : }
469 :
470 :
471 4319 : int add_common_radius_attr(struct hostapd_data *hapd,
472 : struct hostapd_radius_attr *req_attr,
473 : struct sta_info *sta,
474 : struct radius_msg *msg)
475 : {
476 : char buf[128];
477 : struct hostapd_radius_attr *attr;
478 :
479 4319 : if (!hostapd_config_get_radius_attr(req_attr,
480 4319 : RADIUS_ATTR_NAS_IP_ADDRESS) &&
481 4352 : hapd->conf->own_ip_addr.af == AF_INET &&
482 33 : !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
483 33 : (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
484 0 : wpa_printf(MSG_ERROR, "Could not add NAS-IP-Address");
485 0 : return -1;
486 : }
487 :
488 : #ifdef CONFIG_IPV6
489 4319 : if (!hostapd_config_get_radius_attr(req_attr,
490 4319 : RADIUS_ATTR_NAS_IPV6_ADDRESS) &&
491 4326 : hapd->conf->own_ip_addr.af == AF_INET6 &&
492 7 : !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
493 7 : (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
494 0 : wpa_printf(MSG_ERROR, "Could not add NAS-IPv6-Address");
495 0 : return -1;
496 : }
497 : #endif /* CONFIG_IPV6 */
498 :
499 4319 : if (!hostapd_config_get_radius_attr(req_attr,
500 4319 : RADIUS_ATTR_NAS_IDENTIFIER) &&
501 8033 : hapd->conf->nas_identifier &&
502 7428 : !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
503 3714 : (u8 *) hapd->conf->nas_identifier,
504 3714 : os_strlen(hapd->conf->nas_identifier))) {
505 0 : wpa_printf(MSG_ERROR, "Could not add NAS-Identifier");
506 0 : return -1;
507 : }
508 :
509 34552 : os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":%s",
510 25914 : MAC2STR(hapd->own_addr),
511 4319 : wpa_ssid_txt(hapd->conf->ssid.ssid,
512 4319 : hapd->conf->ssid.ssid_len));
513 4319 : buf[sizeof(buf) - 1] = '\0';
514 4319 : if (!hostapd_config_get_radius_attr(req_attr,
515 4319 : RADIUS_ATTR_CALLED_STATION_ID) &&
516 4319 : !radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
517 : (u8 *) buf, os_strlen(buf))) {
518 0 : wpa_printf(MSG_ERROR, "Could not add Called-Station-Id");
519 0 : return -1;
520 : }
521 :
522 4319 : if (!hostapd_config_get_radius_attr(req_attr,
523 4319 : RADIUS_ATTR_NAS_PORT_TYPE) &&
524 4319 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
525 : RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
526 0 : wpa_printf(MSG_ERROR, "Could not add NAS-Port-Type");
527 0 : return -1;
528 : }
529 :
530 : #ifdef CONFIG_INTERWORKING
531 4917 : if (hapd->conf->interworking &&
532 598 : !is_zero_ether_addr(hapd->conf->hessid)) {
533 1278 : os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
534 1278 : MAC2STR(hapd->conf->hessid));
535 213 : buf[sizeof(buf) - 1] = '\0';
536 213 : if (!hostapd_config_get_radius_attr(req_attr,
537 213 : RADIUS_ATTR_WLAN_HESSID) &&
538 213 : !radius_msg_add_attr(msg, RADIUS_ATTR_WLAN_HESSID,
539 : (u8 *) buf, os_strlen(buf))) {
540 0 : wpa_printf(MSG_ERROR, "Could not add WLAN-HESSID");
541 0 : return -1;
542 : }
543 : }
544 : #endif /* CONFIG_INTERWORKING */
545 :
546 4319 : if (sta && add_common_radius_sta_attr(hapd, req_attr, sta, msg) < 0)
547 0 : return -1;
548 :
549 4353 : for (attr = req_attr; attr; attr = attr->next) {
550 68 : if (!radius_msg_add_attr(msg, attr->type,
551 34 : wpabuf_head(attr->val),
552 34 : wpabuf_len(attr->val))) {
553 0 : wpa_printf(MSG_ERROR, "Could not add RADIUS "
554 : "attribute");
555 0 : return -1;
556 : }
557 : }
558 :
559 4319 : return 0;
560 : }
561 :
562 :
563 3768 : static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
564 : struct sta_info *sta,
565 : const u8 *eap, size_t len)
566 : {
567 : struct radius_msg *msg;
568 3768 : struct eapol_state_machine *sm = sta->eapol_sm;
569 :
570 3768 : if (sm == NULL)
571 0 : return;
572 :
573 3768 : ieee802_1x_learn_identity(hapd, sm, eap, len);
574 :
575 3768 : wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
576 : "packet");
577 :
578 3768 : sm->radius_identifier = radius_client_get_id(hapd->radius);
579 3768 : msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
580 3768 : sm->radius_identifier);
581 3768 : if (msg == NULL) {
582 6 : wpa_printf(MSG_INFO, "Could not create new RADIUS packet");
583 6 : return;
584 : }
585 :
586 3762 : radius_msg_make_authenticator(msg, (u8 *) sta, sizeof(*sta));
587 :
588 7524 : if (sm->identity &&
589 7524 : !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
590 3762 : sm->identity, sm->identity_len)) {
591 0 : wpa_printf(MSG_INFO, "Could not add User-Name");
592 0 : goto fail;
593 : }
594 :
595 3762 : if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr, sta,
596 : msg) < 0)
597 0 : goto fail;
598 :
599 : /* TODO: should probably check MTU from driver config; 2304 is max for
600 : * IEEE 802.11, but use 1400 to avoid problems with too large packets
601 : */
602 3762 : if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
603 3762 : RADIUS_ATTR_FRAMED_MTU) &&
604 3762 : !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
605 0 : wpa_printf(MSG_INFO, "Could not add Framed-MTU");
606 0 : goto fail;
607 : }
608 :
609 3762 : if (!radius_msg_add_eap(msg, eap, len)) {
610 0 : wpa_printf(MSG_INFO, "Could not add EAP-Message");
611 0 : goto fail;
612 : }
613 :
614 : /* State attribute must be copied if and only if this packet is
615 : * Access-Request reply to the previous Access-Challenge */
616 6584 : if (sm->last_recv_radius &&
617 2822 : radius_msg_get_hdr(sm->last_recv_radius)->code ==
618 : RADIUS_CODE_ACCESS_CHALLENGE) {
619 2697 : int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
620 : RADIUS_ATTR_STATE);
621 2697 : if (res < 0) {
622 0 : wpa_printf(MSG_INFO, "Could not copy State attribute from previous Access-Challenge");
623 0 : goto fail;
624 : }
625 2697 : if (res > 0) {
626 2486 : wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
627 : }
628 : }
629 :
630 3762 : if (hapd->conf->radius_request_cui) {
631 : const u8 *cui;
632 : size_t cui_len;
633 : /* Add previously learned CUI or nul CUI to request CUI */
634 6 : if (sm->radius_cui) {
635 3 : cui = wpabuf_head(sm->radius_cui);
636 3 : cui_len = wpabuf_len(sm->radius_cui);
637 : } else {
638 3 : cui = (const u8 *) "\0";
639 3 : cui_len = 1;
640 : }
641 6 : if (!radius_msg_add_attr(msg,
642 : RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
643 : cui, cui_len)) {
644 0 : wpa_printf(MSG_ERROR, "Could not add CUI");
645 0 : goto fail;
646 : }
647 : }
648 :
649 : #ifdef CONFIG_HS20
650 3762 : if (hapd->conf->hs20) {
651 598 : u8 ver = 1; /* Release 2 */
652 598 : if (!radius_msg_add_wfa(
653 : msg, RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION,
654 : &ver, 1)) {
655 0 : wpa_printf(MSG_ERROR, "Could not add HS 2.0 AP "
656 : "version");
657 0 : goto fail;
658 : }
659 :
660 598 : if (sta->hs20_ie && wpabuf_len(sta->hs20_ie) > 0) {
661 : const u8 *pos;
662 : u8 buf[3];
663 : u16 id;
664 568 : pos = wpabuf_head_u8(sta->hs20_ie);
665 568 : buf[0] = (*pos) >> 4;
666 1136 : if (((*pos) & HS20_PPS_MO_ID_PRESENT) &&
667 568 : wpabuf_len(sta->hs20_ie) >= 3)
668 568 : id = WPA_GET_LE16(pos + 1);
669 : else
670 0 : id = 0;
671 568 : WPA_PUT_BE16(buf + 1, id);
672 568 : if (!radius_msg_add_wfa(
673 : msg,
674 : RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION,
675 : buf, sizeof(buf))) {
676 0 : wpa_printf(MSG_ERROR, "Could not add HS 2.0 "
677 : "STA version");
678 0 : goto fail;
679 : }
680 : }
681 : }
682 : #endif /* CONFIG_HS20 */
683 :
684 3762 : if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0)
685 2 : goto fail;
686 :
687 3760 : return;
688 :
689 : fail:
690 2 : radius_msg_free(msg);
691 : }
692 : #endif /* CONFIG_NO_RADIUS */
693 :
694 :
695 6669 : static void handle_eap_response(struct hostapd_data *hapd,
696 : struct sta_info *sta, struct eap_hdr *eap,
697 : size_t len)
698 : {
699 : u8 type, *data;
700 6669 : struct eapol_state_machine *sm = sta->eapol_sm;
701 6669 : if (sm == NULL)
702 0 : return;
703 :
704 6669 : data = (u8 *) (eap + 1);
705 :
706 6669 : if (len < sizeof(*eap) + 1) {
707 0 : wpa_printf(MSG_INFO, "handle_eap_response: too short response data");
708 0 : return;
709 : }
710 :
711 6669 : sm->eap_type_supp = type = data[0];
712 :
713 26676 : hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
714 : HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
715 : "id=%d len=%d) from STA: EAP Response-%s (%d)",
716 20007 : eap->code, eap->identifier, be_to_host16(eap->length),
717 : eap_server_get_name(0, type), type);
718 :
719 6669 : sm->dot1xAuthEapolRespFramesRx++;
720 :
721 6669 : wpabuf_free(sm->eap_if->eapRespData);
722 6669 : sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
723 6669 : sm->eapolEap = TRUE;
724 : }
725 :
726 :
727 21 : static void handle_eap_initiate(struct hostapd_data *hapd,
728 : struct sta_info *sta, struct eap_hdr *eap,
729 : size_t len)
730 : {
731 : #ifdef CONFIG_ERP
732 : u8 type, *data;
733 21 : struct eapol_state_machine *sm = sta->eapol_sm;
734 :
735 21 : if (sm == NULL)
736 0 : return;
737 :
738 21 : if (len < sizeof(*eap) + 1) {
739 0 : wpa_printf(MSG_INFO,
740 : "handle_eap_initiate: too short response data");
741 0 : return;
742 : }
743 :
744 21 : data = (u8 *) (eap + 1);
745 21 : type = data[0];
746 :
747 84 : hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
748 : HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
749 : "id=%d len=%d) from STA: EAP Initiate type %u",
750 63 : eap->code, eap->identifier, be_to_host16(eap->length),
751 : type);
752 :
753 21 : wpabuf_free(sm->eap_if->eapRespData);
754 21 : sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
755 21 : sm->eapolEap = TRUE;
756 : #endif /* CONFIG_ERP */
757 : }
758 :
759 :
760 : /* Process incoming EAP packet from Supplicant */
761 6691 : static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
762 : u8 *buf, size_t len)
763 : {
764 : struct eap_hdr *eap;
765 : u16 eap_len;
766 :
767 6691 : if (len < sizeof(*eap)) {
768 0 : wpa_printf(MSG_INFO, " too short EAP packet");
769 0 : return;
770 : }
771 :
772 6691 : eap = (struct eap_hdr *) buf;
773 :
774 6691 : eap_len = be_to_host16(eap->length);
775 20073 : wpa_printf(MSG_DEBUG, "EAP: code=%d identifier=%d length=%d",
776 13382 : eap->code, eap->identifier, eap_len);
777 6691 : if (eap_len < sizeof(*eap)) {
778 0 : wpa_printf(MSG_DEBUG, " Invalid EAP length");
779 0 : return;
780 6691 : } else if (eap_len > len) {
781 0 : wpa_printf(MSG_DEBUG, " Too short frame to contain this EAP "
782 : "packet");
783 0 : return;
784 6691 : } else if (eap_len < len) {
785 0 : wpa_printf(MSG_DEBUG, " Ignoring %lu extra bytes after EAP "
786 : "packet", (unsigned long) len - eap_len);
787 : }
788 :
789 6691 : switch (eap->code) {
790 : case EAP_CODE_REQUEST:
791 1 : wpa_printf(MSG_DEBUG, " (request)");
792 1 : return;
793 : case EAP_CODE_RESPONSE:
794 6669 : wpa_printf(MSG_DEBUG, " (response)");
795 6669 : handle_eap_response(hapd, sta, eap, eap_len);
796 6669 : break;
797 : case EAP_CODE_SUCCESS:
798 0 : wpa_printf(MSG_DEBUG, " (success)");
799 0 : return;
800 : case EAP_CODE_FAILURE:
801 0 : wpa_printf(MSG_DEBUG, " (failure)");
802 0 : return;
803 : case EAP_CODE_INITIATE:
804 21 : wpa_printf(MSG_DEBUG, " (initiate)");
805 21 : handle_eap_initiate(hapd, sta, eap, eap_len);
806 21 : break;
807 : case EAP_CODE_FINISH:
808 0 : wpa_printf(MSG_DEBUG, " (finish)");
809 0 : break;
810 : default:
811 0 : wpa_printf(MSG_DEBUG, " (unknown code)");
812 0 : return;
813 : }
814 : }
815 :
816 :
817 : static struct eapol_state_machine *
818 1542 : ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
819 : {
820 1542 : int flags = 0;
821 1542 : if (sta->flags & WLAN_STA_PREAUTH)
822 6 : flags |= EAPOL_SM_PREAUTH;
823 1542 : if (sta->wpa_sm) {
824 1061 : flags |= EAPOL_SM_USES_WPA;
825 1061 : if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
826 33 : flags |= EAPOL_SM_FROM_PMKSA_CACHE;
827 : }
828 1542 : return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
829 1542 : sta->wps_ie, sta->p2p_ie, sta,
830 1542 : sta->identity, sta->radius_cui);
831 : }
832 :
833 :
834 : /**
835 : * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
836 : * @hapd: hostapd BSS data
837 : * @sa: Source address (sender of the EAPOL frame)
838 : * @buf: EAPOL frame
839 : * @len: Length of buf in octets
840 : *
841 : * This function is called for each incoming EAPOL frame from the interface
842 : */
843 10026 : void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
844 : size_t len)
845 : {
846 : struct sta_info *sta;
847 : struct ieee802_1x_hdr *hdr;
848 : struct ieee802_1x_eapol_key *key;
849 : u16 datalen;
850 : struct rsn_pmksa_cache_entry *pmksa;
851 : int key_mgmt;
852 :
853 10117 : if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen &&
854 91 : !hapd->conf->wps_state)
855 0 : return;
856 :
857 60156 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
858 60156 : (unsigned long) len, MAC2STR(sa));
859 10026 : sta = ap_get_sta(hapd, sa);
860 10034 : if (!sta || (!(sta->flags & (WLAN_STA_ASSOC | WLAN_STA_PREAUTH)) &&
861 8 : !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
862 23 : wpa_printf(MSG_DEBUG, "IEEE 802.1X data frame from not "
863 : "associated/Pre-authenticating STA");
864 23 : return;
865 : }
866 :
867 10003 : if (len < sizeof(*hdr)) {
868 0 : wpa_printf(MSG_INFO, " too short IEEE 802.1X packet");
869 0 : return;
870 : }
871 :
872 10003 : hdr = (struct ieee802_1x_hdr *) buf;
873 10003 : datalen = be_to_host16(hdr->length);
874 30009 : wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
875 20006 : hdr->version, hdr->type, datalen);
876 :
877 10003 : if (len - sizeof(*hdr) < datalen) {
878 1 : wpa_printf(MSG_INFO, " frame too short for this IEEE 802.1X packet");
879 1 : if (sta->eapol_sm)
880 0 : sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
881 1 : return;
882 : }
883 10002 : if (len - sizeof(*hdr) > datalen) {
884 1 : wpa_printf(MSG_DEBUG, " ignoring %lu extra octets after "
885 : "IEEE 802.1X packet",
886 1 : (unsigned long) len - sizeof(*hdr) - datalen);
887 : }
888 :
889 10002 : if (sta->eapol_sm) {
890 8309 : sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
891 8309 : sta->eapol_sm->dot1xAuthEapolFramesRx++;
892 : }
893 :
894 10002 : key = (struct ieee802_1x_eapol_key *) (hdr + 1);
895 16606 : if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
896 9796 : hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
897 6298 : (key->type == EAPOL_KEY_TYPE_WPA ||
898 3106 : key->type == EAPOL_KEY_TYPE_RSN)) {
899 3191 : wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
900 : sizeof(*hdr) + datalen);
901 3191 : return;
902 : }
903 :
904 9038 : if (!hapd->conf->ieee802_1x && !hapd->conf->osen &&
905 2227 : !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
906 1 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
907 : "802.1X not enabled and WPS not used");
908 1 : return;
909 : }
910 :
911 6810 : key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
912 6810 : if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
913 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
914 : "STA is using PSK");
915 0 : return;
916 : }
917 :
918 6810 : if (!sta->eapol_sm) {
919 2 : sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
920 2 : if (!sta->eapol_sm)
921 0 : return;
922 :
923 : #ifdef CONFIG_WPS
924 2 : if (!hapd->conf->ieee802_1x && hapd->conf->wps_state) {
925 0 : u32 wflags = sta->flags & (WLAN_STA_WPS |
926 : WLAN_STA_WPS2 |
927 : WLAN_STA_MAYBE_WPS);
928 0 : if (wflags == WLAN_STA_MAYBE_WPS ||
929 : wflags == (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) {
930 : /*
931 : * Delay EAPOL frame transmission until a
932 : * possible WPS STA initiates the handshake
933 : * with EAPOL-Start. Only allow the wait to be
934 : * skipped if the STA is known to support WPS
935 : * 2.0.
936 : */
937 0 : wpa_printf(MSG_DEBUG, "WPS: Do not start "
938 : "EAPOL until EAPOL-Start is "
939 : "received");
940 0 : sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
941 : }
942 : }
943 : #endif /* CONFIG_WPS */
944 :
945 2 : sta->eapol_sm->eap_if->portEnabled = TRUE;
946 : }
947 :
948 : /* since we support version 1, we can ignore version field and proceed
949 : * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
950 : /* TODO: actually, we are not version 1 anymore.. However, Version 2
951 : * does not change frame contents, so should be ok to process frames
952 : * more or less identically. Some changes might be needed for
953 : * verification of fields. */
954 :
955 6810 : switch (hdr->type) {
956 : case IEEE802_1X_TYPE_EAP_PACKET:
957 6691 : handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
958 6691 : break;
959 :
960 : case IEEE802_1X_TYPE_EAPOL_START:
961 117 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
962 : HOSTAPD_LEVEL_DEBUG, "received EAPOL-Start "
963 : "from STA");
964 117 : sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
965 117 : pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
966 117 : if (pmksa) {
967 1 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
968 : HOSTAPD_LEVEL_DEBUG, "cached PMKSA "
969 : "available - ignore it since "
970 : "STA sent EAPOL-Start");
971 1 : wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
972 : }
973 117 : sta->eapol_sm->eapolStart = TRUE;
974 117 : sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
975 117 : eap_server_clear_identity(sta->eapol_sm->eap);
976 117 : wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
977 117 : break;
978 :
979 : case IEEE802_1X_TYPE_EAPOL_LOGOFF:
980 2 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
981 : HOSTAPD_LEVEL_DEBUG, "received EAPOL-Logoff "
982 : "from STA");
983 2 : sta->acct_terminate_cause =
984 : RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
985 2 : accounting_sta_stop(hapd, sta);
986 2 : sta->eapol_sm->eapolLogoff = TRUE;
987 2 : sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
988 2 : eap_server_clear_identity(sta->eapol_sm->eap);
989 2 : break;
990 :
991 : case IEEE802_1X_TYPE_EAPOL_KEY:
992 0 : wpa_printf(MSG_DEBUG, " EAPOL-Key");
993 0 : if (!ap_sta_is_authorized(sta)) {
994 0 : wpa_printf(MSG_DEBUG, " Dropped key data from "
995 : "unauthorized Supplicant");
996 0 : break;
997 : }
998 0 : break;
999 :
1000 : case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
1001 0 : wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
1002 : /* TODO: implement support for this; show data */
1003 0 : break;
1004 :
1005 : default:
1006 0 : wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
1007 0 : sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
1008 0 : break;
1009 : }
1010 :
1011 6810 : eapol_auth_step(sta->eapol_sm);
1012 : }
1013 :
1014 :
1015 : /**
1016 : * ieee802_1x_new_station - Start IEEE 802.1X authentication
1017 : * @hapd: hostapd BSS data
1018 : * @sta: The station
1019 : *
1020 : * This function is called to start IEEE 802.1X authentication when a new
1021 : * station completes IEEE 802.11 association.
1022 : */
1023 3312 : void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
1024 : {
1025 : struct rsn_pmksa_cache_entry *pmksa;
1026 3312 : int reassoc = 1;
1027 3312 : int force_1x = 0;
1028 : int key_mgmt;
1029 :
1030 : #ifdef CONFIG_WPS
1031 4121 : if (hapd->conf->wps_state &&
1032 2391 : ((hapd->conf->wpa && (sta->flags & WLAN_STA_MAYBE_WPS)) ||
1033 809 : (sta->flags & WLAN_STA_WPS))) {
1034 : /*
1035 : * Need to enable IEEE 802.1X/EAPOL state machines for possible
1036 : * WPS handshake even if IEEE 802.1X/EAPOL is not used for
1037 : * authentication in this BSS.
1038 : */
1039 462 : force_1x = 1;
1040 : }
1041 : #endif /* CONFIG_WPS */
1042 :
1043 3312 : if (!force_1x && !hapd->conf->ieee802_1x && !hapd->conf->osen) {
1044 1663 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - "
1045 : "802.1X not enabled or forced for WPS");
1046 : /*
1047 : * Clear any possible EAPOL authenticator state to support
1048 : * reassociation change from WPS to PSK.
1049 : */
1050 1663 : ieee802_1x_free_station(sta);
1051 1663 : return;
1052 : }
1053 :
1054 1649 : key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
1055 1649 : if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
1056 6 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - using PSK");
1057 : /*
1058 : * Clear any possible EAPOL authenticator state to support
1059 : * reassociation change from WPA-EAP to PSK.
1060 : */
1061 6 : ieee802_1x_free_station(sta);
1062 6 : return;
1063 : }
1064 :
1065 1643 : if (sta->eapol_sm == NULL) {
1066 1540 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1067 : HOSTAPD_LEVEL_DEBUG, "start authentication");
1068 1540 : sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
1069 1540 : if (sta->eapol_sm == NULL) {
1070 1 : hostapd_logger(hapd, sta->addr,
1071 : HOSTAPD_MODULE_IEEE8021X,
1072 : HOSTAPD_LEVEL_INFO,
1073 : "failed to allocate state machine");
1074 1 : return;
1075 : }
1076 1539 : reassoc = 0;
1077 : }
1078 :
1079 : #ifdef CONFIG_WPS
1080 1642 : sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
1081 2104 : if (!hapd->conf->ieee802_1x && hapd->conf->wps_state &&
1082 462 : !(sta->flags & WLAN_STA_WPS2)) {
1083 : /*
1084 : * Delay EAPOL frame transmission until a possible WPS STA
1085 : * initiates the handshake with EAPOL-Start. Only allow the
1086 : * wait to be skipped if the STA is known to support WPS 2.0.
1087 : */
1088 3 : wpa_printf(MSG_DEBUG, "WPS: Do not start EAPOL until "
1089 : "EAPOL-Start is received");
1090 3 : sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1091 : }
1092 : #endif /* CONFIG_WPS */
1093 :
1094 1642 : sta->eapol_sm->eap_if->portEnabled = TRUE;
1095 :
1096 : #ifdef CONFIG_IEEE80211R
1097 1642 : if (sta->auth_alg == WLAN_AUTH_FT) {
1098 4 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1099 : HOSTAPD_LEVEL_DEBUG,
1100 : "PMK from FT - skip IEEE 802.1X/EAP");
1101 : /* Setup EAPOL state machines to already authenticated state
1102 : * because of existing FT information from R0KH. */
1103 4 : sta->eapol_sm->keyRun = TRUE;
1104 4 : sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1105 4 : sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1106 4 : sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1107 4 : sta->eapol_sm->authSuccess = TRUE;
1108 4 : sta->eapol_sm->authFail = FALSE;
1109 4 : if (sta->eapol_sm->eap)
1110 4 : eap_sm_notify_cached(sta->eapol_sm->eap);
1111 : /* TODO: get vlan_id from R0KH using RRB message */
1112 4 : return;
1113 : }
1114 : #endif /* CONFIG_IEEE80211R */
1115 :
1116 1638 : pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1117 1638 : if (pmksa) {
1118 33 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1119 : HOSTAPD_LEVEL_DEBUG,
1120 : "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
1121 : /* Setup EAPOL state machines to already authenticated state
1122 : * because of existing PMKSA information in the cache. */
1123 33 : sta->eapol_sm->keyRun = TRUE;
1124 33 : sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1125 33 : sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1126 33 : sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1127 33 : sta->eapol_sm->authSuccess = TRUE;
1128 33 : sta->eapol_sm->authFail = FALSE;
1129 33 : if (sta->eapol_sm->eap)
1130 33 : eap_sm_notify_cached(sta->eapol_sm->eap);
1131 33 : pmksa_cache_to_eapol_data(pmksa, sta->eapol_sm);
1132 33 : ap_sta_bind_vlan(hapd, sta);
1133 : } else {
1134 1605 : if (reassoc) {
1135 : /*
1136 : * Force EAPOL state machines to start
1137 : * re-authentication without having to wait for the
1138 : * Supplicant to send EAPOL-Start.
1139 : */
1140 103 : sta->eapol_sm->reAuthenticate = TRUE;
1141 : }
1142 1605 : eapol_auth_step(sta->eapol_sm);
1143 : }
1144 : }
1145 :
1146 :
1147 4969 : void ieee802_1x_free_station(struct sta_info *sta)
1148 : {
1149 4969 : struct eapol_state_machine *sm = sta->eapol_sm;
1150 :
1151 4969 : if (sm == NULL)
1152 8397 : return;
1153 :
1154 1541 : sta->eapol_sm = NULL;
1155 :
1156 : #ifndef CONFIG_NO_RADIUS
1157 1342 : radius_msg_free(sm->last_recv_radius);
1158 1342 : radius_free_class(&sm->radius_class);
1159 1342 : wpabuf_free(sm->radius_cui);
1160 : #endif /* CONFIG_NO_RADIUS */
1161 :
1162 1541 : os_free(sm->identity);
1163 1541 : eapol_auth_free(sm);
1164 : }
1165 :
1166 :
1167 : #ifndef CONFIG_NO_RADIUS
1168 3743 : static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
1169 : struct sta_info *sta)
1170 : {
1171 : struct wpabuf *eap;
1172 : const struct eap_hdr *hdr;
1173 3743 : int eap_type = -1;
1174 : char buf[64];
1175 : struct radius_msg *msg;
1176 3743 : struct eapol_state_machine *sm = sta->eapol_sm;
1177 :
1178 3743 : if (sm == NULL || sm->last_recv_radius == NULL) {
1179 0 : if (sm)
1180 0 : sm->eap_if->aaaEapNoReq = TRUE;
1181 18 : return;
1182 : }
1183 :
1184 3743 : msg = sm->last_recv_radius;
1185 :
1186 3743 : eap = radius_msg_get_eap(msg);
1187 3743 : if (eap == NULL) {
1188 : /* RFC 3579, Chap. 2.6.3:
1189 : * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
1190 : * attribute */
1191 18 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1192 : HOSTAPD_LEVEL_WARNING, "could not extract "
1193 : "EAP-Message from RADIUS message");
1194 18 : sm->eap_if->aaaEapNoReq = TRUE;
1195 18 : return;
1196 : }
1197 :
1198 3725 : if (wpabuf_len(eap) < sizeof(*hdr)) {
1199 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1200 : HOSTAPD_LEVEL_WARNING, "too short EAP packet "
1201 : "received from authentication server");
1202 0 : wpabuf_free(eap);
1203 0 : sm->eap_if->aaaEapNoReq = TRUE;
1204 0 : return;
1205 : }
1206 :
1207 3725 : if (wpabuf_len(eap) > sizeof(*hdr))
1208 2865 : eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)];
1209 :
1210 3725 : hdr = wpabuf_head(eap);
1211 3725 : switch (hdr->code) {
1212 : case EAP_CODE_REQUEST:
1213 2841 : if (eap_type >= 0)
1214 2841 : sm->eap_type_authsrv = eap_type;
1215 2841 : os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
1216 : eap_server_get_name(0, eap_type), eap_type);
1217 2841 : break;
1218 : case EAP_CODE_RESPONSE:
1219 6 : os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
1220 : eap_server_get_name(0, eap_type), eap_type);
1221 6 : break;
1222 : case EAP_CODE_SUCCESS:
1223 656 : os_strlcpy(buf, "EAP Success", sizeof(buf));
1224 656 : break;
1225 : case EAP_CODE_FAILURE:
1226 206 : os_strlcpy(buf, "EAP Failure", sizeof(buf));
1227 206 : break;
1228 : default:
1229 16 : os_strlcpy(buf, "unknown EAP code", sizeof(buf));
1230 16 : break;
1231 : }
1232 3725 : buf[sizeof(buf) - 1] = '\0';
1233 11175 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1234 : HOSTAPD_LEVEL_DEBUG, "decapsulated EAP packet (code=%d "
1235 : "id=%d len=%d) from RADIUS server: %s",
1236 11175 : hdr->code, hdr->identifier, be_to_host16(hdr->length),
1237 : buf);
1238 3725 : sm->eap_if->aaaEapReq = TRUE;
1239 :
1240 3725 : wpabuf_free(sm->eap_if->aaaEapReqData);
1241 3725 : sm->eap_if->aaaEapReqData = eap;
1242 : }
1243 :
1244 :
1245 667 : static void ieee802_1x_get_keys(struct hostapd_data *hapd,
1246 : struct sta_info *sta, struct radius_msg *msg,
1247 : struct radius_msg *req,
1248 : const u8 *shared_secret,
1249 : size_t shared_secret_len)
1250 : {
1251 : struct radius_ms_mppe_keys *keys;
1252 667 : struct eapol_state_machine *sm = sta->eapol_sm;
1253 667 : if (sm == NULL)
1254 667 : return;
1255 :
1256 667 : keys = radius_msg_get_ms_keys(msg, req, shared_secret,
1257 : shared_secret_len);
1258 :
1259 1321 : if (keys && keys->send && keys->recv) {
1260 654 : size_t len = keys->send_len + keys->recv_len;
1261 1308 : wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
1262 654 : keys->send, keys->send_len);
1263 1308 : wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
1264 654 : keys->recv, keys->recv_len);
1265 :
1266 654 : os_free(sm->eap_if->aaaEapKeyData);
1267 654 : sm->eap_if->aaaEapKeyData = os_malloc(len);
1268 654 : if (sm->eap_if->aaaEapKeyData) {
1269 653 : os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
1270 : keys->recv_len);
1271 653 : os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
1272 : keys->send, keys->send_len);
1273 653 : sm->eap_if->aaaEapKeyDataLen = len;
1274 653 : sm->eap_if->aaaEapKeyAvailable = TRUE;
1275 : }
1276 : } else {
1277 13 : wpa_printf(MSG_DEBUG,
1278 : "MS-MPPE: 1x_get_keys, could not get keys: %p send: %p recv: %p",
1279 : keys, keys ? keys->send : NULL,
1280 : keys ? keys->recv : NULL);
1281 : }
1282 :
1283 667 : if (keys) {
1284 666 : os_free(keys->send);
1285 666 : os_free(keys->recv);
1286 666 : os_free(keys);
1287 : }
1288 : }
1289 :
1290 :
1291 667 : static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
1292 : struct sta_info *sta,
1293 : struct radius_msg *msg)
1294 : {
1295 : u8 *attr_class;
1296 : size_t class_len;
1297 667 : struct eapol_state_machine *sm = sta->eapol_sm;
1298 : int count, i;
1299 : struct radius_attr_data *nclass;
1300 : size_t nclass_count;
1301 :
1302 667 : if (!hapd->conf->radius->acct_server || hapd->radius == NULL ||
1303 : sm == NULL)
1304 1104 : return;
1305 :
1306 225 : radius_free_class(&sm->radius_class);
1307 225 : count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
1308 225 : if (count <= 0)
1309 220 : return;
1310 :
1311 5 : nclass = os_calloc(count, sizeof(struct radius_attr_data));
1312 5 : if (nclass == NULL)
1313 0 : return;
1314 :
1315 5 : nclass_count = 0;
1316 :
1317 5 : attr_class = NULL;
1318 10 : for (i = 0; i < count; i++) {
1319 : do {
1320 5 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
1321 : &attr_class, &class_len,
1322 : attr_class) < 0) {
1323 0 : i = count;
1324 0 : break;
1325 : }
1326 5 : } while (class_len < 1);
1327 :
1328 5 : nclass[nclass_count].data = os_malloc(class_len);
1329 5 : if (nclass[nclass_count].data == NULL)
1330 0 : break;
1331 :
1332 5 : os_memcpy(nclass[nclass_count].data, attr_class, class_len);
1333 5 : nclass[nclass_count].len = class_len;
1334 5 : nclass_count++;
1335 : }
1336 :
1337 5 : sm->radius_class.attr = nclass;
1338 5 : sm->radius_class.count = nclass_count;
1339 30 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Stored %lu RADIUS Class "
1340 : "attributes for " MACSTR,
1341 : (unsigned long) sm->radius_class.count,
1342 30 : MAC2STR(sta->addr));
1343 : }
1344 :
1345 :
1346 : /* Update sta->identity based on User-Name attribute in Access-Accept */
1347 667 : static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
1348 : struct sta_info *sta,
1349 : struct radius_msg *msg)
1350 : {
1351 : u8 *buf, *identity;
1352 : size_t len;
1353 667 : struct eapol_state_machine *sm = sta->eapol_sm;
1354 :
1355 667 : if (sm == NULL)
1356 667 : return;
1357 :
1358 667 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
1359 : NULL) < 0)
1360 667 : return;
1361 :
1362 0 : identity = (u8 *) dup_binstr(buf, len);
1363 0 : if (identity == NULL)
1364 0 : return;
1365 :
1366 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1367 : HOSTAPD_LEVEL_DEBUG, "old identity '%s' updated with "
1368 : "User-Name from Access-Accept '%s'",
1369 0 : sm->identity ? (char *) sm->identity : "N/A",
1370 : (char *) identity);
1371 :
1372 0 : os_free(sm->identity);
1373 0 : sm->identity = identity;
1374 0 : sm->identity_len = len;
1375 : }
1376 :
1377 :
1378 : /* Update CUI based on Chargeable-User-Identity attribute in Access-Accept */
1379 667 : static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd,
1380 : struct sta_info *sta,
1381 : struct radius_msg *msg)
1382 : {
1383 667 : struct eapol_state_machine *sm = sta->eapol_sm;
1384 : struct wpabuf *cui;
1385 : u8 *buf;
1386 : size_t len;
1387 :
1388 667 : if (sm == NULL)
1389 662 : return;
1390 :
1391 667 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
1392 : &buf, &len, NULL) < 0)
1393 662 : return;
1394 :
1395 5 : cui = wpabuf_alloc_copy(buf, len);
1396 5 : if (cui == NULL)
1397 0 : return;
1398 :
1399 5 : wpabuf_free(sm->radius_cui);
1400 5 : sm->radius_cui = cui;
1401 : }
1402 :
1403 :
1404 : #ifdef CONFIG_HS20
1405 :
1406 2 : static void ieee802_1x_hs20_sub_rem(struct sta_info *sta, u8 *pos, size_t len)
1407 : {
1408 2 : sta->remediation = 1;
1409 2 : os_free(sta->remediation_url);
1410 2 : if (len > 2) {
1411 2 : sta->remediation_url = os_malloc(len);
1412 2 : if (!sta->remediation_url)
1413 2 : return;
1414 2 : sta->remediation_method = pos[0];
1415 2 : os_memcpy(sta->remediation_url, pos + 1, len - 1);
1416 2 : sta->remediation_url[len - 1] = '\0';
1417 16 : wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1418 : "for " MACSTR " - server method %u URL %s",
1419 14 : MAC2STR(sta->addr), sta->remediation_method,
1420 : sta->remediation_url);
1421 : } else {
1422 0 : sta->remediation_url = NULL;
1423 0 : wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1424 0 : "for " MACSTR, MAC2STR(sta->addr));
1425 : }
1426 : /* TODO: assign the STA into remediation VLAN or add filtering */
1427 : }
1428 :
1429 :
1430 1 : static void ieee802_1x_hs20_deauth_req(struct hostapd_data *hapd,
1431 : struct sta_info *sta, u8 *pos,
1432 : size_t len)
1433 : {
1434 1 : if (len < 3)
1435 1 : return; /* Malformed information */
1436 1 : sta->hs20_deauth_requested = 1;
1437 2 : wpa_printf(MSG_DEBUG, "HS 2.0: Deauthentication request - Code %u "
1438 : "Re-auth Delay %u",
1439 2 : *pos, WPA_GET_LE16(pos + 1));
1440 1 : wpabuf_free(sta->hs20_deauth_req);
1441 1 : sta->hs20_deauth_req = wpabuf_alloc(len + 1);
1442 1 : if (sta->hs20_deauth_req) {
1443 1 : wpabuf_put_data(sta->hs20_deauth_req, pos, 3);
1444 1 : wpabuf_put_u8(sta->hs20_deauth_req, len - 3);
1445 1 : wpabuf_put_data(sta->hs20_deauth_req, pos + 3, len - 3);
1446 : }
1447 1 : ap_sta_session_timeout(hapd, sta, hapd->conf->hs20_deauth_req_timeout);
1448 : }
1449 :
1450 :
1451 1 : static void ieee802_1x_hs20_session_info(struct hostapd_data *hapd,
1452 : struct sta_info *sta, u8 *pos,
1453 : size_t len, int session_timeout)
1454 : {
1455 : unsigned int swt;
1456 : int warning_time, beacon_int;
1457 :
1458 1 : if (len < 1)
1459 0 : return; /* Malformed information */
1460 1 : os_free(sta->hs20_session_info_url);
1461 1 : sta->hs20_session_info_url = os_malloc(len);
1462 1 : if (sta->hs20_session_info_url == NULL)
1463 0 : return;
1464 1 : swt = pos[0];
1465 1 : os_memcpy(sta->hs20_session_info_url, pos + 1, len - 1);
1466 1 : sta->hs20_session_info_url[len - 1] = '\0';
1467 1 : wpa_printf(MSG_DEBUG, "HS 2.0: Session Information URL='%s' SWT=%u "
1468 : "(session_timeout=%d)",
1469 : sta->hs20_session_info_url, swt, session_timeout);
1470 1 : if (session_timeout < 0) {
1471 0 : wpa_printf(MSG_DEBUG, "HS 2.0: No Session-Timeout set - ignore session info URL");
1472 0 : return;
1473 : }
1474 1 : if (swt == 255)
1475 0 : swt = 1; /* Use one minute as the AP selected value */
1476 :
1477 1 : if ((unsigned int) session_timeout < swt * 60)
1478 0 : warning_time = 0;
1479 : else
1480 1 : warning_time = session_timeout - swt * 60;
1481 :
1482 1 : beacon_int = hapd->iconf->beacon_int;
1483 1 : if (beacon_int < 1)
1484 0 : beacon_int = 100; /* best guess */
1485 1 : sta->hs20_disassoc_timer = swt * 60 * 1000 / beacon_int * 125 / 128;
1486 1 : if (sta->hs20_disassoc_timer > 65535)
1487 0 : sta->hs20_disassoc_timer = 65535;
1488 :
1489 1 : ap_sta_session_warning_timeout(hapd, sta, warning_time);
1490 : }
1491 :
1492 : #endif /* CONFIG_HS20 */
1493 :
1494 :
1495 667 : static void ieee802_1x_check_hs20(struct hostapd_data *hapd,
1496 : struct sta_info *sta,
1497 : struct radius_msg *msg,
1498 : int session_timeout)
1499 : {
1500 : #ifdef CONFIG_HS20
1501 : u8 *buf, *pos, *end, type, sublen;
1502 : size_t len;
1503 :
1504 667 : buf = NULL;
1505 667 : sta->remediation = 0;
1506 667 : sta->hs20_deauth_requested = 0;
1507 :
1508 : for (;;) {
1509 1997 : if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_VENDOR_SPECIFIC,
1510 : &buf, &len, buf) < 0)
1511 667 : break;
1512 1330 : if (len < 6)
1513 0 : continue;
1514 1330 : pos = buf;
1515 1330 : end = buf + len;
1516 1330 : if (WPA_GET_BE32(pos) != RADIUS_VENDOR_ID_WFA)
1517 1326 : continue;
1518 4 : pos += 4;
1519 :
1520 4 : type = *pos++;
1521 4 : sublen = *pos++;
1522 4 : if (sublen < 2)
1523 0 : continue; /* invalid length */
1524 4 : sublen -= 2; /* skip header */
1525 4 : if (pos + sublen > end)
1526 0 : continue; /* invalid WFA VSA */
1527 :
1528 4 : switch (type) {
1529 : case RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION:
1530 2 : ieee802_1x_hs20_sub_rem(sta, pos, sublen);
1531 2 : break;
1532 : case RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ:
1533 1 : ieee802_1x_hs20_deauth_req(hapd, sta, pos, sublen);
1534 1 : break;
1535 : case RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL:
1536 1 : ieee802_1x_hs20_session_info(hapd, sta, pos, sublen,
1537 : session_timeout);
1538 1 : break;
1539 : }
1540 1330 : }
1541 : #endif /* CONFIG_HS20 */
1542 667 : }
1543 :
1544 :
1545 : struct sta_id_search {
1546 : u8 identifier;
1547 : struct eapol_state_machine *sm;
1548 : };
1549 :
1550 :
1551 3784 : static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
1552 : struct sta_info *sta,
1553 : void *ctx)
1554 : {
1555 3784 : struct sta_id_search *id_search = ctx;
1556 3784 : struct eapol_state_machine *sm = sta->eapol_sm;
1557 :
1558 7538 : if (sm && sm->radius_identifier >= 0 &&
1559 3754 : sm->radius_identifier == id_search->identifier) {
1560 3746 : id_search->sm = sm;
1561 3746 : return 1;
1562 : }
1563 38 : return 0;
1564 : }
1565 :
1566 :
1567 : static struct eapol_state_machine *
1568 3746 : ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
1569 : {
1570 : struct sta_id_search id_search;
1571 3746 : id_search.identifier = identifier;
1572 3746 : id_search.sm = NULL;
1573 3746 : ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
1574 3746 : return id_search.sm;
1575 : }
1576 :
1577 :
1578 : /**
1579 : * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
1580 : * @msg: RADIUS response message
1581 : * @req: RADIUS request message
1582 : * @shared_secret: RADIUS shared secret
1583 : * @shared_secret_len: Length of shared_secret in octets
1584 : * @data: Context data (struct hostapd_data *)
1585 : * Returns: Processing status
1586 : */
1587 : static RadiusRxResult
1588 3746 : ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
1589 : const u8 *shared_secret, size_t shared_secret_len,
1590 : void *data)
1591 : {
1592 3746 : struct hostapd_data *hapd = data;
1593 : struct sta_info *sta;
1594 3746 : u32 session_timeout = 0, termination_action, acct_interim_interval;
1595 3746 : int session_timeout_set, vlan_id = 0;
1596 : struct eapol_state_machine *sm;
1597 3746 : int override_eapReq = 0;
1598 3746 : struct radius_hdr *hdr = radius_msg_get_hdr(msg);
1599 :
1600 3746 : sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
1601 3746 : if (sm == NULL) {
1602 0 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: Could not find matching "
1603 : "station for this RADIUS message");
1604 0 : return RADIUS_RX_UNKNOWN;
1605 : }
1606 3746 : sta = sm->sta;
1607 :
1608 : /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
1609 : * present when packet contains an EAP-Message attribute */
1610 3848 : if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
1611 102 : radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
1612 0 : 0) < 0 &&
1613 0 : radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
1614 0 : wpa_printf(MSG_DEBUG, "Allowing RADIUS Access-Reject without "
1615 : "Message-Authenticator since it does not include "
1616 : "EAP-Message");
1617 3746 : } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
1618 : req, 1)) {
1619 3 : wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have correct Message-Authenticator - dropped");
1620 3 : return RADIUS_RX_INVALID_AUTHENTICATOR;
1621 : }
1622 :
1623 6818 : if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
1624 6048 : hdr->code != RADIUS_CODE_ACCESS_REJECT &&
1625 2973 : hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
1626 0 : wpa_printf(MSG_INFO, "Unknown RADIUS message code");
1627 0 : return RADIUS_RX_UNKNOWN;
1628 : }
1629 :
1630 3743 : sm->radius_identifier = -1;
1631 22458 : wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
1632 22458 : MAC2STR(sta->addr));
1633 :
1634 3743 : radius_msg_free(sm->last_recv_radius);
1635 3743 : sm->last_recv_radius = msg;
1636 :
1637 3743 : session_timeout_set =
1638 3743 : !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
1639 : &session_timeout);
1640 3743 : if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
1641 : &termination_action))
1642 3743 : termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
1643 :
1644 7480 : if (hapd->conf->acct_interim_interval == 0 &&
1645 4403 : hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
1646 666 : radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
1647 : &acct_interim_interval) == 0) {
1648 0 : if (acct_interim_interval < 60) {
1649 0 : hostapd_logger(hapd, sta->addr,
1650 : HOSTAPD_MODULE_IEEE8021X,
1651 : HOSTAPD_LEVEL_INFO,
1652 : "ignored too small "
1653 : "Acct-Interim-Interval %d",
1654 : acct_interim_interval);
1655 : } else
1656 0 : sta->acct_interim_interval = acct_interim_interval;
1657 : }
1658 :
1659 :
1660 3743 : switch (hdr->code) {
1661 : case RADIUS_CODE_ACCESS_ACCEPT:
1662 668 : if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
1663 652 : vlan_id = 0;
1664 : #ifndef CONFIG_NO_VLAN
1665 : else
1666 16 : vlan_id = radius_msg_get_vlanid(msg);
1667 680 : if (vlan_id > 0 &&
1668 12 : hostapd_vlan_id_valid(hapd->conf->vlan, vlan_id)) {
1669 12 : hostapd_logger(hapd, sta->addr,
1670 : HOSTAPD_MODULE_RADIUS,
1671 : HOSTAPD_LEVEL_INFO,
1672 : "VLAN ID %d", vlan_id);
1673 656 : } else if (vlan_id > 0) {
1674 0 : sta->eapol_sm->authFail = TRUE;
1675 0 : hostapd_logger(hapd, sta->addr,
1676 : HOSTAPD_MODULE_RADIUS,
1677 : HOSTAPD_LEVEL_INFO,
1678 : "Invalid VLAN ID %d received from RADIUS server",
1679 : vlan_id);
1680 0 : break;
1681 656 : } else if (hapd->conf->ssid.dynamic_vlan ==
1682 : DYNAMIC_VLAN_REQUIRED) {
1683 1 : sta->eapol_sm->authFail = TRUE;
1684 1 : hostapd_logger(hapd, sta->addr,
1685 : HOSTAPD_MODULE_IEEE8021X,
1686 : HOSTAPD_LEVEL_INFO, "authentication "
1687 : "server did not include required VLAN "
1688 : "ID in Access-Accept");
1689 1 : break;
1690 : }
1691 : #endif /* CONFIG_NO_VLAN */
1692 :
1693 667 : sta->vlan_id = vlan_id;
1694 1330 : if ((sta->flags & WLAN_STA_ASSOC) &&
1695 663 : ap_sta_bind_vlan(hapd, sta) < 0)
1696 0 : break;
1697 :
1698 667 : sta->session_timeout_set = !!session_timeout_set;
1699 667 : sta->session_timeout = session_timeout;
1700 :
1701 : /* RFC 3580, Ch. 3.17 */
1702 667 : if (session_timeout_set && termination_action ==
1703 : RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) {
1704 0 : sm->reAuthPeriod = session_timeout;
1705 667 : } else if (session_timeout_set)
1706 9 : ap_sta_session_timeout(hapd, sta, session_timeout);
1707 :
1708 667 : sm->eap_if->aaaSuccess = TRUE;
1709 667 : override_eapReq = 1;
1710 667 : ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
1711 : shared_secret_len);
1712 667 : ieee802_1x_store_radius_class(hapd, sta, msg);
1713 667 : ieee802_1x_update_sta_identity(hapd, sta, msg);
1714 667 : ieee802_1x_update_sta_cui(hapd, sta, msg);
1715 676 : ieee802_1x_check_hs20(hapd, sta, msg,
1716 : session_timeout_set ?
1717 9 : (int) session_timeout : -1);
1718 667 : if (sm->eap_if->eapKeyAvailable && !sta->remediation &&
1719 0 : !sta->hs20_deauth_requested &&
1720 0 : wpa_auth_pmksa_add(sta->wpa_sm, sm->eapol_key_crypt,
1721 : session_timeout_set ?
1722 0 : (int) session_timeout : -1, sm) == 0) {
1723 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
1724 : HOSTAPD_LEVEL_DEBUG,
1725 : "Added PMKSA cache entry");
1726 : }
1727 667 : break;
1728 : case RADIUS_CODE_ACCESS_REJECT:
1729 102 : sm->eap_if->aaaFail = TRUE;
1730 102 : override_eapReq = 1;
1731 102 : break;
1732 : case RADIUS_CODE_ACCESS_CHALLENGE:
1733 2973 : sm->eap_if->aaaEapReq = TRUE;
1734 2973 : if (session_timeout_set) {
1735 : /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
1736 0 : sm->eap_if->aaaMethodTimeout = session_timeout;
1737 0 : hostapd_logger(hapd, sm->addr,
1738 : HOSTAPD_MODULE_IEEE8021X,
1739 : HOSTAPD_LEVEL_DEBUG,
1740 : "using EAP timeout of %d seconds (from "
1741 : "RADIUS)",
1742 0 : sm->eap_if->aaaMethodTimeout);
1743 : } else {
1744 : /*
1745 : * Use dynamic retransmission behavior per EAP
1746 : * specification.
1747 : */
1748 2973 : sm->eap_if->aaaMethodTimeout = 0;
1749 : }
1750 2973 : break;
1751 : }
1752 :
1753 3743 : ieee802_1x_decapsulate_radius(hapd, sta);
1754 3743 : if (override_eapReq)
1755 769 : sm->eap_if->aaaEapReq = FALSE;
1756 :
1757 3743 : eapol_auth_step(sm);
1758 :
1759 3743 : return RADIUS_RX_QUEUED;
1760 : }
1761 : #endif /* CONFIG_NO_RADIUS */
1762 :
1763 :
1764 1574 : void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
1765 : {
1766 1574 : struct eapol_state_machine *sm = sta->eapol_sm;
1767 1574 : if (sm == NULL)
1768 3115 : return;
1769 :
1770 33 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1771 : HOSTAPD_LEVEL_DEBUG, "aborting authentication");
1772 :
1773 : #ifndef CONFIG_NO_RADIUS
1774 33 : radius_msg_free(sm->last_recv_radius);
1775 33 : sm->last_recv_radius = NULL;
1776 : #endif /* CONFIG_NO_RADIUS */
1777 :
1778 33 : if (sm->eap_if->eapTimeout) {
1779 : /*
1780 : * Disconnect the STA since it did not reply to the last EAP
1781 : * request and we cannot continue EAP processing (EAP-Failure
1782 : * could only be sent if the EAP peer actually replied).
1783 : */
1784 0 : wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "EAP Timeout, STA " MACSTR,
1785 : MAC2STR(sta->addr));
1786 :
1787 0 : sm->eap_if->portEnabled = FALSE;
1788 0 : ap_sta_disconnect(hapd, sta, sta->addr,
1789 : WLAN_REASON_PREV_AUTH_NOT_VALID);
1790 : }
1791 : }
1792 :
1793 :
1794 3 : static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
1795 : {
1796 3 : struct eapol_authenticator *eapol = hapd->eapol_auth;
1797 :
1798 3 : if (hapd->conf->default_wep_key_len < 1)
1799 0 : return 0;
1800 :
1801 3 : os_free(eapol->default_wep_key);
1802 3 : eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
1803 6 : if (eapol->default_wep_key == NULL ||
1804 3 : random_get_bytes(eapol->default_wep_key,
1805 : hapd->conf->default_wep_key_len)) {
1806 0 : wpa_printf(MSG_INFO, "Could not generate random WEP key");
1807 0 : os_free(eapol->default_wep_key);
1808 0 : eapol->default_wep_key = NULL;
1809 0 : return -1;
1810 : }
1811 :
1812 6 : wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
1813 3 : eapol->default_wep_key,
1814 3 : hapd->conf->default_wep_key_len);
1815 :
1816 3 : return 0;
1817 : }
1818 :
1819 :
1820 0 : static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
1821 : struct sta_info *sta, void *ctx)
1822 : {
1823 0 : if (sta->eapol_sm) {
1824 0 : sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1825 0 : eapol_auth_step(sta->eapol_sm);
1826 : }
1827 0 : return 0;
1828 : }
1829 :
1830 :
1831 3 : static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
1832 : {
1833 3 : struct hostapd_data *hapd = eloop_ctx;
1834 3 : struct eapol_authenticator *eapol = hapd->eapol_auth;
1835 :
1836 3 : if (eapol->default_wep_key_idx >= 3)
1837 0 : eapol->default_wep_key_idx =
1838 0 : hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
1839 : else
1840 3 : eapol->default_wep_key_idx++;
1841 :
1842 3 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
1843 3 : eapol->default_wep_key_idx);
1844 :
1845 3 : if (ieee802_1x_rekey_broadcast(hapd)) {
1846 0 : hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1847 : HOSTAPD_LEVEL_WARNING, "failed to generate a "
1848 : "new broadcast key");
1849 0 : os_free(eapol->default_wep_key);
1850 0 : eapol->default_wep_key = NULL;
1851 0 : return;
1852 : }
1853 :
1854 : /* TODO: Could setup key for RX here, but change default TX keyid only
1855 : * after new broadcast key has been sent to all stations. */
1856 6 : if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
1857 : broadcast_ether_addr,
1858 3 : eapol->default_wep_key_idx, 1, NULL, 0,
1859 3 : eapol->default_wep_key,
1860 3 : hapd->conf->default_wep_key_len)) {
1861 0 : hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1862 : HOSTAPD_LEVEL_WARNING, "failed to configure a "
1863 : "new broadcast key");
1864 0 : os_free(eapol->default_wep_key);
1865 0 : eapol->default_wep_key = NULL;
1866 0 : return;
1867 : }
1868 :
1869 3 : ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
1870 :
1871 3 : if (hapd->conf->wep_rekeying_period > 0) {
1872 3 : eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
1873 : ieee802_1x_rekey, hapd, NULL);
1874 : }
1875 : }
1876 :
1877 :
1878 8377 : static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
1879 : const u8 *data, size_t datalen)
1880 : {
1881 : #ifdef CONFIG_WPS
1882 8377 : struct sta_info *sta = sta_ctx;
1883 :
1884 8377 : if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
1885 : WLAN_STA_MAYBE_WPS) {
1886 : const u8 *identity;
1887 : size_t identity_len;
1888 0 : struct eapol_state_machine *sm = sta->eapol_sm;
1889 :
1890 0 : identity = eap_get_identity(sm->eap, &identity_len);
1891 0 : if (identity &&
1892 0 : ((identity_len == WSC_ID_ENROLLEE_LEN &&
1893 0 : os_memcmp(identity, WSC_ID_ENROLLEE,
1894 0 : WSC_ID_ENROLLEE_LEN) == 0) ||
1895 0 : (identity_len == WSC_ID_REGISTRAR_LEN &&
1896 0 : os_memcmp(identity, WSC_ID_REGISTRAR,
1897 : WSC_ID_REGISTRAR_LEN) == 0))) {
1898 0 : wpa_printf(MSG_DEBUG, "WPS: WLAN_STA_MAYBE_WPS -> "
1899 : "WLAN_STA_WPS");
1900 0 : sta->flags |= WLAN_STA_WPS;
1901 : }
1902 : }
1903 : #endif /* CONFIG_WPS */
1904 :
1905 8377 : ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
1906 8377 : }
1907 :
1908 :
1909 3768 : static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
1910 : const u8 *data, size_t datalen)
1911 : {
1912 : #ifndef CONFIG_NO_RADIUS
1913 3768 : struct hostapd_data *hapd = ctx;
1914 3768 : struct sta_info *sta = sta_ctx;
1915 :
1916 3768 : ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
1917 : #endif /* CONFIG_NO_RADIUS */
1918 3768 : }
1919 :
1920 :
1921 1318 : static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
1922 : int preauth, int remediation)
1923 : {
1924 1318 : struct hostapd_data *hapd = ctx;
1925 1318 : struct sta_info *sta = sta_ctx;
1926 1318 : if (preauth)
1927 4 : rsn_preauth_finished(hapd, sta, success);
1928 : else
1929 1314 : ieee802_1x_finished(hapd, sta, success, remediation);
1930 1318 : }
1931 :
1932 :
1933 733 : static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
1934 : size_t identity_len, int phase2,
1935 : struct eap_user *user)
1936 : {
1937 733 : struct hostapd_data *hapd = ctx;
1938 : const struct hostapd_eap_user *eap_user;
1939 : int i;
1940 733 : int rv = -1;
1941 :
1942 733 : eap_user = hostapd_get_eap_user(hapd, identity, identity_len, phase2);
1943 733 : if (eap_user == NULL)
1944 1 : goto out;
1945 :
1946 732 : os_memset(user, 0, sizeof(*user));
1947 732 : user->phase2 = phase2;
1948 6588 : for (i = 0; i < EAP_MAX_METHODS; i++) {
1949 5856 : user->methods[i].vendor = eap_user->methods[i].vendor;
1950 5856 : user->methods[i].method = eap_user->methods[i].method;
1951 : }
1952 :
1953 732 : if (eap_user->password) {
1954 236 : user->password = os_malloc(eap_user->password_len);
1955 236 : if (user->password == NULL)
1956 3 : goto out;
1957 233 : os_memcpy(user->password, eap_user->password,
1958 : eap_user->password_len);
1959 233 : user->password_len = eap_user->password_len;
1960 233 : user->password_hash = eap_user->password_hash;
1961 : }
1962 729 : user->force_version = eap_user->force_version;
1963 729 : user->macacl = eap_user->macacl;
1964 729 : user->ttls_auth = eap_user->ttls_auth;
1965 729 : user->remediation = eap_user->remediation;
1966 729 : rv = 0;
1967 :
1968 : out:
1969 733 : if (rv)
1970 4 : wpa_printf(MSG_DEBUG, "%s: Failed to find user", __func__);
1971 :
1972 733 : return rv;
1973 : }
1974 :
1975 :
1976 330641 : static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
1977 : {
1978 330641 : struct hostapd_data *hapd = ctx;
1979 : struct sta_info *sta;
1980 330641 : sta = ap_get_sta(hapd, addr);
1981 330641 : if (sta == NULL || sta->eapol_sm == NULL)
1982 6164 : return 0;
1983 324477 : return 1;
1984 : }
1985 :
1986 :
1987 10142 : static void ieee802_1x_logger(void *ctx, const u8 *addr,
1988 : eapol_logger_level level, const char *txt)
1989 : {
1990 : #ifndef CONFIG_NO_HOSTAPD_LOGGER
1991 10142 : struct hostapd_data *hapd = ctx;
1992 : int hlevel;
1993 :
1994 10142 : switch (level) {
1995 : case EAPOL_LOGGER_WARNING:
1996 551 : hlevel = HOSTAPD_LEVEL_WARNING;
1997 551 : break;
1998 : case EAPOL_LOGGER_INFO:
1999 1215 : hlevel = HOSTAPD_LEVEL_INFO;
2000 1215 : break;
2001 : case EAPOL_LOGGER_DEBUG:
2002 : default:
2003 8376 : hlevel = HOSTAPD_LEVEL_DEBUG;
2004 8376 : break;
2005 : }
2006 :
2007 10142 : hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
2008 : txt);
2009 : #endif /* CONFIG_NO_HOSTAPD_LOGGER */
2010 10142 : }
2011 :
2012 :
2013 2928 : static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
2014 : int authorized)
2015 : {
2016 2928 : struct hostapd_data *hapd = ctx;
2017 2928 : struct sta_info *sta = sta_ctx;
2018 2928 : ieee802_1x_set_sta_authorized(hapd, sta, authorized);
2019 2928 : }
2020 :
2021 :
2022 1574 : static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
2023 : {
2024 1574 : struct hostapd_data *hapd = ctx;
2025 1574 : struct sta_info *sta = sta_ctx;
2026 1574 : ieee802_1x_abort_auth(hapd, sta);
2027 1574 : }
2028 :
2029 :
2030 4 : static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
2031 : {
2032 : #ifndef CONFIG_FIPS
2033 : #ifndef CONFIG_NO_RC4
2034 4 : struct hostapd_data *hapd = ctx;
2035 4 : struct sta_info *sta = sta_ctx;
2036 4 : ieee802_1x_tx_key(hapd, sta);
2037 : #endif /* CONFIG_NO_RC4 */
2038 : #endif /* CONFIG_FIPS */
2039 4 : }
2040 :
2041 :
2042 19157 : static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
2043 : enum eapol_event type)
2044 : {
2045 : /* struct hostapd_data *hapd = ctx; */
2046 19157 : struct sta_info *sta = sta_ctx;
2047 19157 : switch (type) {
2048 : case EAPOL_AUTH_SM_CHANGE:
2049 19156 : wpa_auth_sm_notify(sta->wpa_sm);
2050 19156 : break;
2051 : case EAPOL_AUTH_REAUTHENTICATE:
2052 1 : wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
2053 1 : break;
2054 : }
2055 19157 : }
2056 :
2057 :
2058 : #ifdef CONFIG_ERP
2059 :
2060 : static struct eap_server_erp_key *
2061 5 : ieee802_1x_erp_get_key(void *ctx, const char *keyname)
2062 : {
2063 5 : struct hostapd_data *hapd = ctx;
2064 : struct eap_server_erp_key *erp;
2065 :
2066 5 : dl_list_for_each(erp, &hapd->erp_keys, struct eap_server_erp_key,
2067 : list) {
2068 4 : if (os_strcmp(erp->keyname_nai, keyname) == 0)
2069 4 : return erp;
2070 : }
2071 :
2072 1 : return NULL;
2073 : }
2074 :
2075 :
2076 5 : static int ieee802_1x_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
2077 : {
2078 5 : struct hostapd_data *hapd = ctx;
2079 :
2080 5 : dl_list_add(&hapd->erp_keys, &erp->list);
2081 5 : return 0;
2082 : }
2083 :
2084 : #endif /* CONFIG_ERP */
2085 :
2086 :
2087 2048 : int ieee802_1x_init(struct hostapd_data *hapd)
2088 : {
2089 : int i;
2090 : struct eapol_auth_config conf;
2091 : struct eapol_auth_cb cb;
2092 :
2093 2048 : dl_list_init(&hapd->erp_keys);
2094 :
2095 2048 : os_memset(&conf, 0, sizeof(conf));
2096 2048 : conf.ctx = hapd;
2097 2048 : conf.eap_reauth_period = hapd->conf->eap_reauth_period;
2098 2048 : conf.wpa = hapd->conf->wpa;
2099 2048 : conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
2100 2048 : conf.eap_server = hapd->conf->eap_server;
2101 2048 : conf.ssl_ctx = hapd->ssl_ctx;
2102 2048 : conf.msg_ctx = hapd->msg_ctx;
2103 2048 : conf.eap_sim_db_priv = hapd->eap_sim_db_priv;
2104 2048 : conf.eap_req_id_text = hapd->conf->eap_req_id_text;
2105 2048 : conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
2106 2048 : conf.erp_send_reauth_start = hapd->conf->erp_send_reauth_start;
2107 2048 : conf.erp_domain = hapd->conf->erp_domain;
2108 2048 : conf.erp = hapd->conf->eap_server_erp;
2109 2048 : conf.tls_session_lifetime = hapd->conf->tls_session_lifetime;
2110 2048 : conf.pac_opaque_encr_key = hapd->conf->pac_opaque_encr_key;
2111 2048 : conf.eap_fast_a_id = hapd->conf->eap_fast_a_id;
2112 2048 : conf.eap_fast_a_id_len = hapd->conf->eap_fast_a_id_len;
2113 2048 : conf.eap_fast_a_id_info = hapd->conf->eap_fast_a_id_info;
2114 2048 : conf.eap_fast_prov = hapd->conf->eap_fast_prov;
2115 2048 : conf.pac_key_lifetime = hapd->conf->pac_key_lifetime;
2116 2048 : conf.pac_key_refresh_time = hapd->conf->pac_key_refresh_time;
2117 2048 : conf.eap_sim_aka_result_ind = hapd->conf->eap_sim_aka_result_ind;
2118 2048 : conf.tnc = hapd->conf->tnc;
2119 2048 : conf.wps = hapd->wps;
2120 2048 : conf.fragment_size = hapd->conf->fragment_size;
2121 2048 : conf.pwd_group = hapd->conf->pwd_group;
2122 2048 : conf.pbc_in_m1 = hapd->conf->pbc_in_m1;
2123 2048 : if (hapd->conf->server_id) {
2124 13 : conf.server_id = (const u8 *) hapd->conf->server_id;
2125 13 : conf.server_id_len = os_strlen(hapd->conf->server_id);
2126 : } else {
2127 2035 : conf.server_id = (const u8 *) "hostapd";
2128 2035 : conf.server_id_len = 7;
2129 : }
2130 :
2131 2048 : os_memset(&cb, 0, sizeof(cb));
2132 2048 : cb.eapol_send = ieee802_1x_eapol_send;
2133 2048 : cb.aaa_send = ieee802_1x_aaa_send;
2134 2048 : cb.finished = _ieee802_1x_finished;
2135 2048 : cb.get_eap_user = ieee802_1x_get_eap_user;
2136 2048 : cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
2137 2048 : cb.logger = ieee802_1x_logger;
2138 2048 : cb.set_port_authorized = ieee802_1x_set_port_authorized;
2139 2048 : cb.abort_auth = _ieee802_1x_abort_auth;
2140 2048 : cb.tx_key = _ieee802_1x_tx_key;
2141 2048 : cb.eapol_event = ieee802_1x_eapol_event;
2142 : #ifdef CONFIG_ERP
2143 2048 : cb.erp_get_key = ieee802_1x_erp_get_key;
2144 2048 : cb.erp_add_key = ieee802_1x_erp_add_key;
2145 : #endif /* CONFIG_ERP */
2146 :
2147 2048 : hapd->eapol_auth = eapol_auth_init(&conf, &cb);
2148 2048 : if (hapd->eapol_auth == NULL)
2149 0 : return -1;
2150 :
2151 3318 : if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
2152 1270 : hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
2153 0 : return -1;
2154 :
2155 : #ifndef CONFIG_NO_RADIUS
2156 1675 : if (radius_client_register(hapd->radius, RADIUS_AUTH,
2157 : ieee802_1x_receive_auth, hapd))
2158 0 : return -1;
2159 : #endif /* CONFIG_NO_RADIUS */
2160 :
2161 2048 : if (hapd->conf->default_wep_key_len) {
2162 15 : for (i = 0; i < 4; i++)
2163 12 : hostapd_drv_set_key(hapd->conf->iface, hapd,
2164 : WPA_ALG_NONE, NULL, i, 0, NULL, 0,
2165 : NULL, 0);
2166 :
2167 3 : ieee802_1x_rekey(hapd, NULL);
2168 :
2169 3 : if (hapd->eapol_auth->default_wep_key == NULL)
2170 0 : return -1;
2171 : }
2172 :
2173 2048 : return 0;
2174 : }
2175 :
2176 :
2177 2056 : void ieee802_1x_erp_flush(struct hostapd_data *hapd)
2178 : {
2179 : struct eap_server_erp_key *erp;
2180 :
2181 4117 : while ((erp = dl_list_first(&hapd->erp_keys, struct eap_server_erp_key,
2182 : list)) != NULL) {
2183 5 : dl_list_del(&erp->list);
2184 5 : bin_clear_free(erp, sizeof(*erp));
2185 : }
2186 2056 : }
2187 :
2188 :
2189 2055 : void ieee802_1x_deinit(struct hostapd_data *hapd)
2190 : {
2191 2055 : eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
2192 :
2193 4110 : if (hapd->driver != NULL &&
2194 3644 : (hapd->conf->ieee802_1x || hapd->conf->wpa))
2195 1303 : hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
2196 :
2197 2055 : eapol_auth_deinit(hapd->eapol_auth);
2198 2055 : hapd->eapol_auth = NULL;
2199 :
2200 2055 : ieee802_1x_erp_flush(hapd);
2201 2055 : }
2202 :
2203 :
2204 1580 : int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2205 : const u8 *buf, size_t len, int ack)
2206 : {
2207 : struct ieee80211_hdr *hdr;
2208 : u8 *pos;
2209 1580 : const unsigned char rfc1042_hdr[ETH_ALEN] =
2210 : { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
2211 :
2212 1580 : if (sta == NULL)
2213 0 : return -1;
2214 1580 : if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2)
2215 389 : return 0;
2216 :
2217 1191 : hdr = (struct ieee80211_hdr *) buf;
2218 1191 : pos = (u8 *) (hdr + 1);
2219 1191 : if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
2220 1191 : return 0;
2221 0 : pos += sizeof(rfc1042_hdr);
2222 0 : if (WPA_GET_BE16(pos) != ETH_P_PAE)
2223 0 : return 0;
2224 0 : pos += 2;
2225 :
2226 0 : return ieee802_1x_eapol_tx_status(hapd, sta, pos, buf + len - pos,
2227 : ack);
2228 : }
2229 :
2230 :
2231 8980 : int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2232 : const u8 *buf, int len, int ack)
2233 : {
2234 8980 : const struct ieee802_1x_hdr *xhdr =
2235 : (const struct ieee802_1x_hdr *) buf;
2236 8980 : const u8 *pos = buf + sizeof(*xhdr);
2237 : struct ieee802_1x_eapol_key *key;
2238 :
2239 8980 : if (len < (int) sizeof(*xhdr))
2240 0 : return 0;
2241 80820 : wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR " TX status - version=%d "
2242 : "type=%d length=%d - ack=%d",
2243 71840 : MAC2STR(sta->addr), xhdr->version, xhdr->type,
2244 8980 : be_to_host16(xhdr->length), ack);
2245 :
2246 8980 : if (xhdr->type != IEEE802_1X_TYPE_EAPOL_KEY)
2247 6287 : return 0;
2248 :
2249 2693 : if (pos + sizeof(struct wpa_eapol_key) <= buf + len) {
2250 : const struct wpa_eapol_key *wpa;
2251 2687 : wpa = (const struct wpa_eapol_key *) pos;
2252 2763 : if (wpa->type == EAPOL_KEY_TYPE_RSN ||
2253 76 : wpa->type == EAPOL_KEY_TYPE_WPA)
2254 2687 : wpa_auth_eapol_key_tx_status(hapd->wpa_auth,
2255 : sta->wpa_sm, ack);
2256 : }
2257 :
2258 : /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
2259 : * or Authenticator state machines, but EAPOL-Key packets are not
2260 : * retransmitted in case of failure. Try to re-send failed EAPOL-Key
2261 : * packets couple of times because otherwise STA keys become
2262 : * unsynchronized with AP. */
2263 2693 : if (!ack && pos + sizeof(*key) <= buf + len) {
2264 0 : key = (struct ieee802_1x_eapol_key *) pos;
2265 0 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
2266 : HOSTAPD_LEVEL_DEBUG, "did not Ack EAPOL-Key "
2267 : "frame (%scast index=%d)",
2268 0 : key->key_index & BIT(7) ? "uni" : "broad",
2269 0 : key->key_index & ~BIT(7));
2270 : /* TODO: re-send EAPOL-Key couple of times (with short delay
2271 : * between them?). If all attempt fail, report error and
2272 : * deauthenticate STA so that it will get new keys when
2273 : * authenticating again (e.g., after returning in range).
2274 : * Separate limit/transmit state needed both for unicast and
2275 : * broadcast keys(?) */
2276 : }
2277 : /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
2278 : * to here and change the key only if the EAPOL-Key packet was Acked.
2279 : */
2280 :
2281 2693 : return 1;
2282 : }
2283 :
2284 :
2285 448 : u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
2286 : {
2287 448 : if (sm == NULL || sm->identity == NULL)
2288 6 : return NULL;
2289 :
2290 442 : *len = sm->identity_len;
2291 442 : return sm->identity;
2292 : }
2293 :
2294 :
2295 453 : u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
2296 : int idx)
2297 : {
2298 477 : if (sm == NULL || sm->radius_class.attr == NULL ||
2299 24 : idx >= (int) sm->radius_class.count)
2300 441 : return NULL;
2301 :
2302 12 : *len = sm->radius_class.attr[idx].len;
2303 12 : return sm->radius_class.attr[idx].data;
2304 : }
2305 :
2306 :
2307 444 : struct wpabuf * ieee802_1x_get_radius_cui(struct eapol_state_machine *sm)
2308 : {
2309 444 : if (sm == NULL)
2310 6 : return NULL;
2311 438 : return sm->radius_cui;
2312 : }
2313 :
2314 :
2315 2052 : const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
2316 : {
2317 2052 : *len = 0;
2318 2052 : if (sm == NULL)
2319 0 : return NULL;
2320 :
2321 2052 : *len = sm->eap_if->eapKeyDataLen;
2322 2052 : return sm->eap_if->eapKeyData;
2323 : }
2324 :
2325 :
2326 12147 : void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
2327 : int enabled)
2328 : {
2329 12147 : if (sm == NULL)
2330 17299 : return;
2331 6995 : sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
2332 6995 : eapol_auth_step(sm);
2333 : }
2334 :
2335 :
2336 5131 : void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
2337 : int valid)
2338 : {
2339 5131 : if (sm == NULL)
2340 7353 : return;
2341 2909 : sm->portValid = valid ? TRUE : FALSE;
2342 2909 : eapol_auth_step(sm);
2343 : }
2344 :
2345 :
2346 3599 : void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
2347 : {
2348 3599 : if (sm == NULL)
2349 7092 : return;
2350 106 : if (pre_auth)
2351 0 : sm->flags |= EAPOL_SM_PREAUTH;
2352 : else
2353 106 : sm->flags &= ~EAPOL_SM_PREAUTH;
2354 : }
2355 :
2356 :
2357 18 : static const char * bool_txt(Boolean val)
2358 : {
2359 18 : return val ? "TRUE" : "FALSE";
2360 : }
2361 :
2362 :
2363 8 : int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2364 : {
2365 : /* TODO */
2366 8 : return 0;
2367 : }
2368 :
2369 :
2370 202 : int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2371 : char *buf, size_t buflen)
2372 : {
2373 202 : int len = 0, ret;
2374 202 : struct eapol_state_machine *sm = sta->eapol_sm;
2375 : struct os_reltime diff;
2376 : const char *name1;
2377 : const char *name2;
2378 :
2379 202 : if (sm == NULL)
2380 193 : return 0;
2381 :
2382 9 : ret = os_snprintf(buf + len, buflen - len,
2383 : "dot1xPaePortNumber=%d\n"
2384 : "dot1xPaePortProtocolVersion=%d\n"
2385 : "dot1xPaePortCapabilities=1\n"
2386 : "dot1xPaePortInitialize=%d\n"
2387 : "dot1xPaePortReauthenticate=FALSE\n",
2388 9 : sta->aid,
2389 : EAPOL_VERSION,
2390 9 : sm->initialize);
2391 9 : if (os_snprintf_error(buflen - len, ret))
2392 0 : return len;
2393 9 : len += ret;
2394 :
2395 : /* dot1xAuthConfigTable */
2396 27 : ret = os_snprintf(buf + len, buflen - len,
2397 : "dot1xAuthPaeState=%d\n"
2398 : "dot1xAuthBackendAuthState=%d\n"
2399 : "dot1xAuthAdminControlledDirections=%d\n"
2400 : "dot1xAuthOperControlledDirections=%d\n"
2401 : "dot1xAuthAuthControlledPortStatus=%d\n"
2402 : "dot1xAuthAuthControlledPortControl=%d\n"
2403 : "dot1xAuthQuietPeriod=%u\n"
2404 : "dot1xAuthServerTimeout=%u\n"
2405 : "dot1xAuthReAuthPeriod=%u\n"
2406 : "dot1xAuthReAuthEnabled=%s\n"
2407 : "dot1xAuthKeyTxEnabled=%s\n",
2408 9 : sm->auth_pae_state + 1,
2409 9 : sm->be_auth_state + 1,
2410 9 : sm->adminControlledDirections,
2411 9 : sm->operControlledDirections,
2412 9 : sm->authPortStatus,
2413 9 : sm->portControl,
2414 : sm->quietPeriod,
2415 : sm->serverTimeout,
2416 : sm->reAuthPeriod,
2417 : bool_txt(sm->reAuthEnabled),
2418 : bool_txt(sm->keyTxEnabled));
2419 9 : if (os_snprintf_error(buflen - len, ret))
2420 0 : return len;
2421 9 : len += ret;
2422 :
2423 : /* dot1xAuthStatsTable */
2424 54 : ret = os_snprintf(buf + len, buflen - len,
2425 : "dot1xAuthEapolFramesRx=%u\n"
2426 : "dot1xAuthEapolFramesTx=%u\n"
2427 : "dot1xAuthEapolStartFramesRx=%u\n"
2428 : "dot1xAuthEapolLogoffFramesRx=%u\n"
2429 : "dot1xAuthEapolRespIdFramesRx=%u\n"
2430 : "dot1xAuthEapolRespFramesRx=%u\n"
2431 : "dot1xAuthEapolReqIdFramesTx=%u\n"
2432 : "dot1xAuthEapolReqFramesTx=%u\n"
2433 : "dot1xAuthInvalidEapolFramesRx=%u\n"
2434 : "dot1xAuthEapLengthErrorFramesRx=%u\n"
2435 : "dot1xAuthLastEapolFrameVersion=%u\n"
2436 : "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
2437 : sm->dot1xAuthEapolFramesRx,
2438 : sm->dot1xAuthEapolFramesTx,
2439 : sm->dot1xAuthEapolStartFramesRx,
2440 : sm->dot1xAuthEapolLogoffFramesRx,
2441 : sm->dot1xAuthEapolRespIdFramesRx,
2442 : sm->dot1xAuthEapolRespFramesRx,
2443 : sm->dot1xAuthEapolReqIdFramesTx,
2444 : sm->dot1xAuthEapolReqFramesTx,
2445 : sm->dot1xAuthInvalidEapolFramesRx,
2446 : sm->dot1xAuthEapLengthErrorFramesRx,
2447 : sm->dot1xAuthLastEapolFrameVersion,
2448 54 : MAC2STR(sm->addr));
2449 9 : if (os_snprintf_error(buflen - len, ret))
2450 0 : return len;
2451 9 : len += ret;
2452 :
2453 : /* dot1xAuthDiagTable */
2454 9 : ret = os_snprintf(buf + len, buflen - len,
2455 : "dot1xAuthEntersConnecting=%u\n"
2456 : "dot1xAuthEapLogoffsWhileConnecting=%u\n"
2457 : "dot1xAuthEntersAuthenticating=%u\n"
2458 : "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
2459 : "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
2460 : "dot1xAuthAuthFailWhileAuthenticating=%u\n"
2461 : "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
2462 : "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
2463 : "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
2464 : "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
2465 : "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
2466 : "dot1xAuthBackendResponses=%u\n"
2467 : "dot1xAuthBackendAccessChallenges=%u\n"
2468 : "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
2469 : "dot1xAuthBackendAuthSuccesses=%u\n"
2470 : "dot1xAuthBackendAuthFails=%u\n",
2471 : sm->authEntersConnecting,
2472 : sm->authEapLogoffsWhileConnecting,
2473 : sm->authEntersAuthenticating,
2474 : sm->authAuthSuccessesWhileAuthenticating,
2475 : sm->authAuthTimeoutsWhileAuthenticating,
2476 : sm->authAuthFailWhileAuthenticating,
2477 : sm->authAuthEapStartsWhileAuthenticating,
2478 : sm->authAuthEapLogoffWhileAuthenticating,
2479 : sm->authAuthReauthsWhileAuthenticated,
2480 : sm->authAuthEapStartsWhileAuthenticated,
2481 : sm->authAuthEapLogoffWhileAuthenticated,
2482 : sm->backendResponses,
2483 : sm->backendAccessChallenges,
2484 : sm->backendOtherRequestsToSupplicant,
2485 : sm->backendAuthSuccesses,
2486 : sm->backendAuthFails);
2487 9 : if (os_snprintf_error(buflen - len, ret))
2488 0 : return len;
2489 9 : len += ret;
2490 :
2491 : /* dot1xAuthSessionStatsTable */
2492 9 : os_reltime_age(&sta->acct_session_start, &diff);
2493 27 : ret = os_snprintf(buf + len, buflen - len,
2494 : /* TODO: dot1xAuthSessionOctetsRx */
2495 : /* TODO: dot1xAuthSessionOctetsTx */
2496 : /* TODO: dot1xAuthSessionFramesRx */
2497 : /* TODO: dot1xAuthSessionFramesTx */
2498 : "dot1xAuthSessionId=%08X-%08X\n"
2499 : "dot1xAuthSessionAuthenticMethod=%d\n"
2500 : "dot1xAuthSessionTime=%u\n"
2501 : "dot1xAuthSessionTerminateCause=999\n"
2502 : "dot1xAuthSessionUserName=%s\n",
2503 : sta->acct_session_id_hi, sta->acct_session_id_lo,
2504 9 : (wpa_key_mgmt_wpa_ieee8021x(
2505 : wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
2506 : 1 : 2,
2507 9 : (unsigned int) diff.sec,
2508 : sm->identity);
2509 9 : if (os_snprintf_error(buflen - len, ret))
2510 0 : return len;
2511 9 : len += ret;
2512 :
2513 9 : if (sm->acct_multi_session_id_hi) {
2514 9 : ret = os_snprintf(buf + len, buflen - len,
2515 : "authMultiSessionId=%08X+%08X\n",
2516 : sm->acct_multi_session_id_hi,
2517 : sm->acct_multi_session_id_lo);
2518 9 : if (os_snprintf_error(buflen - len, ret))
2519 0 : return len;
2520 9 : len += ret;
2521 : }
2522 :
2523 9 : name1 = eap_server_get_name(0, sm->eap_type_authsrv);
2524 9 : name2 = eap_server_get_name(0, sm->eap_type_supp);
2525 18 : ret = os_snprintf(buf + len, buflen - len,
2526 : "last_eap_type_as=%d (%s)\n"
2527 : "last_eap_type_sta=%d (%s)\n",
2528 9 : sm->eap_type_authsrv, name1,
2529 9 : sm->eap_type_supp, name2);
2530 9 : if (os_snprintf_error(buflen - len, ret))
2531 0 : return len;
2532 9 : len += ret;
2533 :
2534 9 : return len;
2535 : }
2536 :
2537 :
2538 1314 : static void ieee802_1x_finished(struct hostapd_data *hapd,
2539 : struct sta_info *sta, int success,
2540 : int remediation)
2541 : {
2542 : const u8 *key;
2543 : size_t len;
2544 : /* TODO: get PMKLifetime from WPA parameters */
2545 : static const int dot11RSNAConfigPMKLifetime = 43200;
2546 : unsigned int session_timeout;
2547 :
2548 : #ifdef CONFIG_HS20
2549 1314 : if (remediation && !sta->remediation) {
2550 0 : sta->remediation = 1;
2551 0 : os_free(sta->remediation_url);
2552 0 : sta->remediation_url =
2553 0 : os_strdup(hapd->conf->subscr_remediation_url);
2554 0 : sta->remediation_method = 1; /* SOAP-XML SPP */
2555 : }
2556 :
2557 1314 : if (success) {
2558 761 : if (sta->remediation) {
2559 12 : wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification "
2560 : "to " MACSTR " to indicate Subscription "
2561 : "Remediation",
2562 12 : MAC2STR(sta->addr));
2563 2 : hs20_send_wnm_notification(hapd, sta->addr,
2564 2 : sta->remediation_method,
2565 2 : sta->remediation_url);
2566 2 : os_free(sta->remediation_url);
2567 2 : sta->remediation_url = NULL;
2568 : }
2569 :
2570 761 : if (sta->hs20_deauth_req) {
2571 6 : wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification "
2572 : "to " MACSTR " to indicate imminent "
2573 6 : "deauthentication", MAC2STR(sta->addr));
2574 1 : hs20_send_wnm_notification_deauth_req(
2575 1 : hapd, sta->addr, sta->hs20_deauth_req);
2576 : }
2577 : }
2578 : #endif /* CONFIG_HS20 */
2579 :
2580 1314 : key = ieee802_1x_get_key(sta->eapol_sm, &len);
2581 1314 : if (sta->session_timeout_set)
2582 11 : session_timeout = sta->session_timeout;
2583 : else
2584 1303 : session_timeout = dot11RSNAConfigPMKLifetime;
2585 2040 : if (success && key && len >= PMK_LEN && !sta->remediation &&
2586 1451 : !sta->hs20_deauth_requested &&
2587 725 : wpa_auth_pmksa_add(sta->wpa_sm, key, session_timeout,
2588 : sta->eapol_sm) == 0) {
2589 663 : hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
2590 : HOSTAPD_LEVEL_DEBUG,
2591 : "Added PMKSA cache entry (IEEE 802.1X)");
2592 : }
2593 :
2594 1314 : if (!success) {
2595 : /*
2596 : * Many devices require deauthentication after WPS provisioning
2597 : * and some may not be be able to do that themselves, so
2598 : * disconnect the client here. In addition, this may also
2599 : * benefit IEEE 802.1X/EAPOL authentication cases, too since
2600 : * the EAPOL PAE state machine would remain in HELD state for
2601 : * considerable amount of time and some EAP methods, like
2602 : * EAP-FAST with anonymous provisioning, may require another
2603 : * EAPOL authentication to be started to complete connection.
2604 : */
2605 553 : wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "IEEE 802.1X: Force "
2606 : "disconnection after EAP-Failure");
2607 : /* Add a small sleep to increase likelihood of previously
2608 : * requested EAP-Failure TX getting out before this should the
2609 : * driver reorder operations.
2610 : */
2611 553 : os_sleep(0, 10000);
2612 553 : ap_sta_disconnect(hapd, sta, sta->addr,
2613 : WLAN_REASON_IEEE_802_1X_AUTH_FAILED);
2614 553 : hostapd_wps_eap_completed(hapd);
2615 : }
2616 1314 : }
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