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[thirdparty/hostap.git] / src / ap / ieee802_1x.c
CommitLineData
6fc6879b
JM		 1/*
2 * hostapd / IEEE 802.1X-2004 Authenticator
c7bce24d 3 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
6fc6879b 4 *
0f3d578e
JM		 5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
6fc6879b
JM		 7 */
8
6226e38d 9#include "utils/includes.h"
6fc6879b 10
6226e38d
JM		 11#include "utils/common.h"
12#include "utils/eloop.h"
03da66bd
JM		 13#include "crypto/md5.h"
14#include "crypto/crypto.h"
3642c431 15#include "crypto/random.h"
03da66bd 16#include "common/ieee802_11_defs.h"
6fc6879b
JM		 17#include "radius/radius.h"
18#include "radius/radius_client.h"
6226e38d 19#include "eap_server/eap.h"
4e22adb4 20#include "eap_common/eap_wsc_common.h"
281c950b 21#include "eapol_auth/eapol_auth_sm.h"
e0e14a7b 22#include "eapol_auth/eapol_auth_sm_i.h"
c9aab274 23#include "p2p/p2p.h"
03da66bd 24#include "hostapd.h"
03da66bd 25#include "accounting.h"
6fc6879b 26#include "sta_info.h"
6226e38d
JM		 27#include "wpa_auth.h"
28#include "preauth_auth.h"
29#include "pmksa_cache_auth.h"
30#include "ap_config.h"
3acdf771 31#include "ap_drv_ops.h"
7b75c301 32#include "wps_hostapd.h"
6ca0853d 33#include "hs20.h"
c4fd6d8a
JM		 34/* FIX: Not really a good thing to require ieee802_11.h here.. (FILS) */
35#include "ieee802_11.h"
6226e38d 36#include "ieee802_1x.h"
6fc6879b
JM		 37
38
d7c3347f
JM		 39#ifdef CONFIG_HS20
40static void ieee802_1x_wnm_notif_send(void *eloop_ctx, void *timeout_ctx);
41#endif /* CONFIG_HS20 */
6fc6879b 42static void ieee802_1x_finished(struct hostapd_data *hapd,
8d2a9921
JM		 43 struct sta_info *sta, int success,
44 int remediation);
6fc6879b
JM		 45
46
47static void ieee802_1x_send(struct hostapd_data *hapd, struct sta_info *sta,
48 u8 type, const u8 *data, size_t datalen)
49{
50 u8 *buf;
51 struct ieee802_1x_hdr *xhdr;
52 size_t len;
53 int encrypt = 0;
54
55 len = sizeof(*xhdr) + datalen;
56 buf = os_zalloc(len);
57 if (buf == NULL) {
58 wpa_printf(MSG_ERROR, "malloc() failed for "
59 "ieee802_1x_send(len=%lu)",
60 (unsigned long) len);
61 return;
62 }
63
64 xhdr = (struct ieee802_1x_hdr *) buf;
65 xhdr->version = hapd->conf->eapol_version;
66 xhdr->type = type;
67 xhdr->length = host_to_be16(datalen);
68
69 if (datalen > 0 && data != NULL)
70 os_memcpy(xhdr + 1, data, datalen);
71
72 if (wpa_auth_pairwise_set(sta->wpa_sm))
73 encrypt = 1;
9d4ff04a
JM		 74#ifdef CONFIG_TESTING_OPTIONS
75 if (hapd->ext_eapol_frame_io) {
76 size_t hex_len = 2 * len + 1;
77 char *hex = os_malloc(hex_len);
78
79 if (hex) {
80 wpa_snprintf_hex(hex, hex_len, buf, len);
81 wpa_msg(hapd->msg_ctx, MSG_INFO,
82 "EAPOL-TX " MACSTR " %s",
83 MAC2STR(sta->addr), hex);
84 os_free(hex);
85 }
86 } else
87#endif /* CONFIG_TESTING_OPTIONS */
6fc6879b
JM		 88 if (sta->flags & WLAN_STA_PREAUTH) {
89 rsn_preauth_send(hapd, sta, buf, len);
90 } else {
af220315
JM		 91 hostapd_drv_hapd_send_eapol(
92 hapd, sta->addr, buf, len,
93 encrypt, hostapd_sta_flags_to_drv(sta->flags));
6fc6879b
JM		 94 }
95
96 os_free(buf);
97}
98
99
100void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
101 struct sta_info *sta, int authorized)
102{
103 int res;
104
105 if (sta->flags & WLAN_STA_PREAUTH)
106 return;
107
108 if (authorized) {
6905dcb1 109 ap_sta_set_authorized(hapd, sta, 1);
0e8a96a9 110 res = hostapd_set_authorized(hapd, sta, 1);
6fc6879b
JM		 111 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
112 HOSTAPD_LEVEL_DEBUG, "authorizing port");
113 } else {
6905dcb1 114 ap_sta_set_authorized(hapd, sta, 0);
0e8a96a9 115 res = hostapd_set_authorized(hapd, sta, 0);
6fc6879b
JM		 116 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
117 HOSTAPD_LEVEL_DEBUG, "unauthorizing port");
118 }
119
120 if (res && errno != ENOENT) {
24d110dc
DS		 121 wpa_printf(MSG_DEBUG, "Could not set station " MACSTR
122 " flags for kernel driver (errno=%d).",
123 MAC2STR(sta->addr), errno);
6fc6879b
JM		 124 }
125
39b1572c 126 if (authorized) {
b3493fa1 127 os_get_reltime(&sta->connected_time);
6fc6879b 128 accounting_sta_start(hapd, sta);
39b1572c 129 }
6fc6879b
JM		 130}
131
132
e03e56c3 133#ifndef CONFIG_FIPS
7cb53ded 134#ifndef CONFIG_NO_RC4
e03e56c3 135
6fc6879b
JM		 136static void ieee802_1x_tx_key_one(struct hostapd_data *hapd,
137 struct sta_info *sta,
138 int idx, int broadcast,
139 u8 *key_data, size_t key_len)
140{
141 u8 *buf, *ekey;
142 struct ieee802_1x_hdr *hdr;
143 struct ieee802_1x_eapol_key *key;
144 size_t len, ekey_len;
145 struct eapol_state_machine *sm = sta->eapol_sm;
146
147 if (sm == NULL)
148 return;
149
150 len = sizeof(*key) + key_len;
151 buf = os_zalloc(sizeof(*hdr) + len);
152 if (buf == NULL)
153 return;
154
155 hdr = (struct ieee802_1x_hdr *) buf;
156 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
157 key->type = EAPOL_KEY_TYPE_RC4;
70a26e70 158 WPA_PUT_BE16(key->key_length, key_len);
6fc6879b
JM		 159 wpa_get_ntp_timestamp(key->replay_counter);
160
3642c431 161 if (random_get_bytes(key->key_iv, sizeof(key->key_iv))) {
6fc6879b
JM		 162 wpa_printf(MSG_ERROR, "Could not get random numbers");
163 os_free(buf);
164 return;
165 }
166
167 key->key_index = idx | (broadcast ? 0 : BIT(7));
168 if (hapd->conf->eapol_key_index_workaround) {
169 /* According to some information, WinXP Supplicant seems to
170 * interpret bit7 as an indication whether the key is to be
171 * activated, so make it possible to enable workaround that
172 * sets this bit for all keys. */
173 key->key_index |= BIT(7);
174 }
175
176 /* Key is encrypted using "Key-IV + MSK[0..31]" as the RC4-key and
177 * MSK[32..63] is used to sign the message. */
178 if (sm->eap_if->eapKeyData == NULL || sm->eap_if->eapKeyDataLen < 64) {
179 wpa_printf(MSG_ERROR, "No eapKeyData available for encrypting "
180 "and signing EAPOL-Key");
181 os_free(buf);
182 return;
183 }
184 os_memcpy((u8 *) (key + 1), key_data, key_len);
185 ekey_len = sizeof(key->key_iv) + 32;
186 ekey = os_malloc(ekey_len);
187 if (ekey == NULL) {
188 wpa_printf(MSG_ERROR, "Could not encrypt key");
189 os_free(buf);
190 return;
191 }
192 os_memcpy(ekey, key->key_iv, sizeof(key->key_iv));
193 os_memcpy(ekey + sizeof(key->key_iv), sm->eap_if->eapKeyData, 32);
8ef16831 194 rc4_skip(ekey, ekey_len, 0, (u8 *) (key + 1), key_len);
6fc6879b
JM		 195 os_free(ekey);
196
197 /* This header is needed here for HMAC-MD5, but it will be regenerated
198 * in ieee802_1x_send() */
199 hdr->version = hapd->conf->eapol_version;
200 hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
201 hdr->length = host_to_be16(len);
202 hmac_md5(sm->eap_if->eapKeyData + 32, 32, buf, sizeof(*hdr) + len,
203 key->key_signature);
204
205 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key to " MACSTR
206 " (%s index=%d)", MAC2STR(sm->addr),
207 broadcast ? "broadcast" : "unicast", idx);
208 ieee802_1x_send(hapd, sta, IEEE802_1X_TYPE_EAPOL_KEY, (u8 *) key, len);
209 if (sta->eapol_sm)
210 sta->eapol_sm->dot1xAuthEapolFramesTx++;
211 os_free(buf);
212}
213
214
bfc284c5 215static void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta)
6fc6879b 216{
f55802e8 217 struct eapol_authenticator *eapol = hapd->eapol_auth;
6fc6879b 218 struct eapol_state_machine *sm = sta->eapol_sm;
6fc6879b
JM		 219
220 if (sm == NULL || !sm->eap_if->eapKeyData)
221 return;
222
223 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key(s) to " MACSTR,
224 MAC2STR(sta->addr));
225
30b32314 226#ifndef CONFIG_NO_VLAN
1889af2e 227 if (sta->vlan_id > 0) {
d66dcb0d
MB		 228 wpa_printf(MSG_ERROR, "Using WEP with vlans is not supported.");
229 return;
230 }
30b32314 231#endif /* CONFIG_NO_VLAN */
d2ba3d6b 232
f55802e8
JM		 233 if (eapol->default_wep_key) {
234 ieee802_1x_tx_key_one(hapd, sta, eapol->default_wep_key_idx, 1,
235 eapol->default_wep_key,
6fc6879b
JM		 236 hapd->conf->default_wep_key_len);
237 }
238
239 if (hapd->conf->individual_wep_key_len > 0) {
240 u8 *ikey;
241 ikey = os_malloc(hapd->conf->individual_wep_key_len);
242 if (ikey == NULL ||
3642c431
JM		 243 random_get_bytes(ikey, hapd->conf->individual_wep_key_len))
244 {
6fc6879b
JM		 245 wpa_printf(MSG_ERROR, "Could not generate random "
246 "individual WEP key.");
247 os_free(ikey);
248 return;
249 }
250
251 wpa_hexdump_key(MSG_DEBUG, "Individual WEP key",
252 ikey, hapd->conf->individual_wep_key_len);
253
254 ieee802_1x_tx_key_one(hapd, sta, 0, 0, ikey,
255 hapd->conf->individual_wep_key_len);
256
257 /* TODO: set encryption in TX callback, i.e., only after STA
258 * has ACKed EAPOL-Key frame */
3acdf771
JM		 259 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
260 sta->addr, 0, 1, NULL, 0, ikey,
261 hapd->conf->individual_wep_key_len)) {
6fc6879b
JM		 262 wpa_printf(MSG_ERROR, "Could not set individual WEP "
263 "encryption.");
264 }
265
266 os_free(ikey);
267 }
268}
269
7cb53ded 270#endif /* CONFIG_NO_RC4 */
e03e56c3
JM		 271#endif /* CONFIG_FIPS */
272
6fc6879b
JM		 273
274const char *radius_mode_txt(struct hostapd_data *hapd)
275{
45cefa0b 276 switch (hapd->iface->conf->hw_mode) {
7829894c
VK		 277 case HOSTAPD_MODE_IEEE80211AD:
278 return "802.11ad";
6fc6879b
JM		 279 case HOSTAPD_MODE_IEEE80211A:
280 return "802.11a";
281 case HOSTAPD_MODE_IEEE80211G:
282 return "802.11g";
283 case HOSTAPD_MODE_IEEE80211B:
284 default:
285 return "802.11b";
286 }
287}
288
289
290int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta)
291{
292 int i;
293 u8 rate = 0;
294
295 for (i = 0; i < sta->supported_rates_len; i++)
296 if ((sta->supported_rates[i] & 0x7f) > rate)
297 rate = sta->supported_rates[i] & 0x7f;
298
299 return rate;
300}
301
302
f88bd288 303#ifndef CONFIG_NO_RADIUS
6fc6879b
JM		 304static void ieee802_1x_learn_identity(struct hostapd_data *hapd,
305 struct eapol_state_machine *sm,
306 const u8 *eap, size_t len)
307{
308 const u8 *identity;
309 size_t identity_len;
d3bddd8b 310 const struct eap_hdr *hdr = (const struct eap_hdr *) eap;
6fc6879b
JM		 311
312 if (len <= sizeof(struct eap_hdr) ||
d3bddd8b
JM		 313 (hdr->code == EAP_CODE_RESPONSE &&
314 eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY) ||
315 (hdr->code == EAP_CODE_INITIATE &&
316 eap[sizeof(struct eap_hdr)] != EAP_ERP_TYPE_REAUTH) ||
317 (hdr->code != EAP_CODE_RESPONSE &&
318 hdr->code != EAP_CODE_INITIATE))
6fc6879b
JM		 319 return;
320
a6228b8e 321 eap_erp_update_identity(sm->eap, eap, len);
6fc6879b
JM		 322 identity = eap_get_identity(sm->eap, &identity_len);
323 if (identity == NULL)
324 return;
325
326 /* Save station identity for future RADIUS packets */
327 os_free(sm->identity);
5e24dc8a 328 sm->identity = (u8 *) dup_binstr(identity, identity_len);
6fc6879b
JM		 329 if (sm->identity == NULL) {
330 sm->identity_len = 0;
331 return;
332 }
333
6fc6879b 334 sm->identity_len = identity_len;
6fc6879b
JM		 335 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
336 HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity);
337 sm->dot1xAuthEapolRespIdFramesRx++;
338}
339
340
6c460eaf
JM		 341static int add_common_radius_sta_attr_rsn(struct hostapd_data *hapd,
342 struct hostapd_radius_attr *req_attr,
343 struct sta_info *sta,
344 struct radius_msg *msg)
345{
346 u32 suite;
347 int ver, val;
348
349 ver = wpa_auth_sta_wpa_version(sta->wpa_sm);
350 val = wpa_auth_get_pairwise(sta->wpa_sm);
351 suite = wpa_cipher_to_suite(ver, val);
352 if (val != -1 &&
353 !hostapd_config_get_radius_attr(req_attr,
354 RADIUS_ATTR_WLAN_PAIRWISE_CIPHER) &&
355 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_PAIRWISE_CIPHER,
356 suite)) {
357 wpa_printf(MSG_ERROR, "Could not add WLAN-Pairwise-Cipher");
358 return -1;
359 }
360
3dce85ce
JM		 361 suite = wpa_cipher_to_suite(((hapd->conf->wpa & 0x2) ||
362 hapd->conf->osen) ?
6c460eaf
JM		 363 WPA_PROTO_RSN : WPA_PROTO_WPA,
364 hapd->conf->wpa_group);
365 if (!hostapd_config_get_radius_attr(req_attr,
366 RADIUS_ATTR_WLAN_GROUP_CIPHER) &&
367 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_GROUP_CIPHER,
368 suite)) {
369 wpa_printf(MSG_ERROR, "Could not add WLAN-Group-Cipher");
370 return -1;
371 }
372
373 val = wpa_auth_sta_key_mgmt(sta->wpa_sm);
374 suite = wpa_akm_to_suite(val);
375 if (val != -1 &&
376 !hostapd_config_get_radius_attr(req_attr,
377 RADIUS_ATTR_WLAN_AKM_SUITE) &&
378 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_AKM_SUITE,
379 suite)) {
380 wpa_printf(MSG_ERROR, "Could not add WLAN-AKM-Suite");
381 return -1;
382 }
383
384#ifdef CONFIG_IEEE80211W
385 if (hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
386 suite = wpa_cipher_to_suite(WPA_PROTO_RSN,
387 hapd->conf->group_mgmt_cipher);
388 if (!hostapd_config_get_radius_attr(
389 req_attr, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER) &&
390 !radius_msg_add_attr_int32(
391 msg, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER, suite)) {
392 wpa_printf(MSG_ERROR,
393 "Could not add WLAN-Group-Mgmt-Cipher");
394 return -1;
395 }
396 }
397#endif /* CONFIG_IEEE80211W */
398
399 return 0;
400}
401
402
8bea63e0
JM		 403static int add_common_radius_sta_attr(struct hostapd_data *hapd,
404 struct hostapd_radius_attr *req_attr,
405 struct sta_info *sta,
406 struct radius_msg *msg)
6fc6879b 407{
6fc6879b 408 char buf[128];
6fc6879b 409
8c676b50
NL		 410 if (!hostapd_config_get_radius_attr(req_attr,
411 RADIUS_ATTR_SERVICE_TYPE) &&
412 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_SERVICE_TYPE,
413 RADIUS_SERVICE_TYPE_FRAMED)) {
414 wpa_printf(MSG_ERROR, "Could not add Service-Type");
415 return -1;
416 }
417
8bea63e0
JM		 418 if (!hostapd_config_get_radius_attr(req_attr,
419 RADIUS_ATTR_NAS_PORT) &&
8468189e 420 sta->aid > 0 &&
8bea63e0
JM		 421 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
422 wpa_printf(MSG_ERROR, "Could not add NAS-Port");
423 return -1;
424 }
6fc6879b 425
8bea63e0
JM		 426 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
427 MAC2STR(sta->addr));
428 buf[sizeof(buf) - 1] = '\0';
429 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
430 (u8 *) buf, os_strlen(buf))) {
431 wpa_printf(MSG_ERROR, "Could not add Calling-Station-Id");
432 return -1;
433 }
6fc6879b 434
8bea63e0
JM		 435 if (sta->flags & WLAN_STA_PREAUTH) {
436 os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
437 sizeof(buf));
438 } else {
439 os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
440 radius_sta_rate(hapd, sta) / 2,
441 (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
442 radius_mode_txt(hapd));
443 buf[sizeof(buf) - 1] = '\0';
444 }
445 if (!hostapd_config_get_radius_attr(req_attr,
446 RADIUS_ATTR_CONNECT_INFO) &&
447 !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
448 (u8 *) buf, os_strlen(buf))) {
449 wpa_printf(MSG_ERROR, "Could not add Connect-Info");
450 return -1;
6fc6879b
JM		 451 }
452
d72a0053 453 if (sta->acct_session_id) {
1492fbb9
NL		 454 os_snprintf(buf, sizeof(buf), "%016llX",
455 (unsigned long long) sta->acct_session_id);
8b248611
JM		 456 if (!radius_msg_add_attr(msg, RADIUS_ATTR_ACCT_SESSION_ID,
457 (u8 *) buf, os_strlen(buf))) {
458 wpa_printf(MSG_ERROR, "Could not add Acct-Session-Id");
459 return -1;
460 }
461 }
462
b71a64aa
NL		 463 if ((hapd->conf->wpa & 2) &&
464 !hapd->conf->disable_pmksa_caching &&
465 sta->eapol_sm && sta->eapol_sm->acct_multi_session_id) {
1492fbb9
NL		 466 os_snprintf(buf, sizeof(buf), "%016llX",
467 (unsigned long long)
b71a64aa
NL		 468 sta->eapol_sm->acct_multi_session_id);
469 if (!radius_msg_add_attr(
470 msg, RADIUS_ATTR_ACCT_MULTI_SESSION_ID,
471 (u8 *) buf, os_strlen(buf))) {
472 wpa_printf(MSG_INFO,
473 "Could not add Acct-Multi-Session-Id");
474 return -1;
475 }
476 }
477
4ec1fd8e 478#ifdef CONFIG_IEEE80211R_AP
69002fb0
JM		 479 if (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) &&
480 sta->wpa_sm &&
481 (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm)) ||
482 sta->auth_alg == WLAN_AUTH_FT) &&
483 !hostapd_config_get_radius_attr(req_attr,
484 RADIUS_ATTR_MOBILITY_DOMAIN_ID) &&
485 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_MOBILITY_DOMAIN_ID,
486 WPA_GET_BE16(
487 hapd->conf->mobility_domain))) {
488 wpa_printf(MSG_ERROR, "Could not add Mobility-Domain-Id");
489 return -1;
490 }
4ec1fd8e 491#endif /* CONFIG_IEEE80211R_AP */
69002fb0 492
3dce85ce 493 if ((hapd->conf->wpa || hapd->conf->osen) && sta->wpa_sm &&
6c460eaf
JM		 494 add_common_radius_sta_attr_rsn(hapd, req_attr, sta, msg) < 0)
495 return -1;
496
8bea63e0
JM		 497 return 0;
498}
6fc6879b 499
6fc6879b 500
8bea63e0
JM		 501int add_common_radius_attr(struct hostapd_data *hapd,
502 struct hostapd_radius_attr *req_attr,
503 struct sta_info *sta,
504 struct radius_msg *msg)
505{
506 char buf[128];
507 struct hostapd_radius_attr *attr;
5bd9be4d 508 int len;
8bea63e0
JM		 509
510 if (!hostapd_config_get_radius_attr(req_attr,
af35e7af
JM		 511 RADIUS_ATTR_NAS_IP_ADDRESS) &&
512 hapd->conf->own_ip_addr.af == AF_INET &&
6fc6879b
JM		 513 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
514 (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
8bea63e0
JM		 515 wpa_printf(MSG_ERROR, "Could not add NAS-IP-Address");
516 return -1;
6fc6879b
JM		 517 }
518
519#ifdef CONFIG_IPV6
8bea63e0 520 if (!hostapd_config_get_radius_attr(req_attr,
af35e7af
JM		 521 RADIUS_ATTR_NAS_IPV6_ADDRESS) &&
522 hapd->conf->own_ip_addr.af == AF_INET6 &&
6fc6879b
JM		 523 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
524 (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
8bea63e0
JM		 525 wpa_printf(MSG_ERROR, "Could not add NAS-IPv6-Address");
526 return -1;
6fc6879b
JM		 527 }
528#endif /* CONFIG_IPV6 */
529
8bea63e0 530 if (!hostapd_config_get_radius_attr(req_attr,
af35e7af
JM		 531 RADIUS_ATTR_NAS_IDENTIFIER) &&
532 hapd->conf->nas_identifier &&
6fc6879b
JM		 533 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
534 (u8 *) hapd->conf->nas_identifier,
535 os_strlen(hapd->conf->nas_identifier))) {
8bea63e0
JM		 536 wpa_printf(MSG_ERROR, "Could not add NAS-Identifier");
537 return -1;
6fc6879b
JM		 538 }
539
5bd9be4d
JM		 540 len = os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":",
541 MAC2STR(hapd->own_addr));
542 os_memcpy(&buf[len], hapd->conf->ssid.ssid,
543 hapd->conf->ssid.ssid_len);
544 len += hapd->conf->ssid.ssid_len;
8bea63e0 545 if (!hostapd_config_get_radius_attr(req_attr,
af35e7af
JM		 546 RADIUS_ATTR_CALLED_STATION_ID) &&
547 !radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
5bd9be4d 548 (u8 *) buf, len)) {
8bea63e0
JM		 549 wpa_printf(MSG_ERROR, "Could not add Called-Station-Id");
550 return -1;
6fc6879b
JM		 551 }
552
8bea63e0
JM		 553 if (!hostapd_config_get_radius_attr(req_attr,
554 RADIUS_ATTR_NAS_PORT_TYPE) &&
555 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
556 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
557 wpa_printf(MSG_ERROR, "Could not add NAS-Port-Type");
558 return -1;
559 }
560
cdffd721
JM		 561#ifdef CONFIG_INTERWORKING
562 if (hapd->conf->interworking &&
563 !is_zero_ether_addr(hapd->conf->hessid)) {
564 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
565 MAC2STR(hapd->conf->hessid));
566 buf[sizeof(buf) - 1] = '\0';
567 if (!hostapd_config_get_radius_attr(req_attr,
568 RADIUS_ATTR_WLAN_HESSID) &&
569 !radius_msg_add_attr(msg, RADIUS_ATTR_WLAN_HESSID,
570 (u8 *) buf, os_strlen(buf))) {
571 wpa_printf(MSG_ERROR, "Could not add WLAN-HESSID");
572 return -1;
573 }
574 }
575#endif /* CONFIG_INTERWORKING */
576
8bea63e0
JM		 577 if (sta && add_common_radius_sta_attr(hapd, req_attr, sta, msg) < 0)
578 return -1;
579
580 for (attr = req_attr; attr; attr = attr->next) {
581 if (!radius_msg_add_attr(msg, attr->type,
582 wpabuf_head(attr->val),
583 wpabuf_len(attr->val))) {
584 wpa_printf(MSG_ERROR, "Could not add RADIUS "
585 "attribute");
586 return -1;
587 }
588 }
589
590 return 0;
591}
592
593
c30bd28b
JM		 594void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
595 struct sta_info *sta,
596 const u8 *eap, size_t len)
8bea63e0
JM		 597{
598 struct radius_msg *msg;
599 struct eapol_state_machine *sm = sta->eapol_sm;
600
601 if (sm == NULL)
602 return;
603
604 ieee802_1x_learn_identity(hapd, sm, eap, len);
605
606 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
607 "packet");
608
609 sm->radius_identifier = radius_client_get_id(hapd->radius);
610 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
611 sm->radius_identifier);
612 if (msg == NULL) {
61323e70 613 wpa_printf(MSG_INFO, "Could not create new RADIUS packet");
8bea63e0
JM		 614 return;
615 }
616
2cbc6ffb
NL		 617 if (radius_msg_make_authenticator(msg) < 0) {
618 wpa_printf(MSG_INFO, "Could not make Request Authenticator");
619 goto fail;
620 }
8bea63e0
JM		 621
622 if (sm->identity &&
623 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
624 sm->identity, sm->identity_len)) {
61323e70 625 wpa_printf(MSG_INFO, "Could not add User-Name");
6fc6879b
JM		 626 goto fail;
627 }
628
8bea63e0
JM		 629 if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr, sta,
630 msg) < 0)
631 goto fail;
632
6fc6879b
JM		 633 /* TODO: should probably check MTU from driver config; 2304 is max for
634 * IEEE 802.11, but use 1400 to avoid problems with too large packets
635 */
af35e7af
JM		 636 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
637 RADIUS_ATTR_FRAMED_MTU) &&
638 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
61323e70 639 wpa_printf(MSG_INFO, "Could not add Framed-MTU");
6fc6879b
JM		 640 goto fail;
641 }
642
c99df201 643 if (!radius_msg_add_eap(msg, eap, len)) {
61323e70 644 wpa_printf(MSG_INFO, "Could not add EAP-Message");
6fc6879b
JM		 645 goto fail;
646 }
647
648 /* State attribute must be copied if and only if this packet is
649 * Access-Request reply to the previous Access-Challenge */
1489e11a
JM		 650 if (sm->last_recv_radius &&
651 radius_msg_get_hdr(sm->last_recv_radius)->code ==
6fc6879b
JM		 652 RADIUS_CODE_ACCESS_CHALLENGE) {
653 int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
654 RADIUS_ATTR_STATE);
655 if (res < 0) {
61323e70 656 wpa_printf(MSG_INFO, "Could not copy State attribute from previous Access-Challenge");
6fc6879b
JM		 657 goto fail;
658 }
659 if (res > 0) {
660 wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
661 }
662 }
663
86f6053a
JM		 664 if (hapd->conf->radius_request_cui) {
665 const u8 *cui;
666 size_t cui_len;
667 /* Add previously learned CUI or nul CUI to request CUI */
668 if (sm->radius_cui) {
669 cui = wpabuf_head(sm->radius_cui);
670 cui_len = wpabuf_len(sm->radius_cui);
671 } else {
672 cui = (const u8 *) "\0";
673 cui_len = 1;
674 }
675 if (!radius_msg_add_attr(msg,
676 RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
677 cui, cui_len)) {
678 wpa_printf(MSG_ERROR, "Could not add CUI");
679 goto fail;
680 }
681 }
682
76579ec7
JM		 683#ifdef CONFIG_HS20
684 if (hapd->conf->hs20) {
685 u8 ver = 1; /* Release 2 */
686 if (!radius_msg_add_wfa(
687 msg, RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION,
688 &ver, 1)) {
689 wpa_printf(MSG_ERROR, "Could not add HS 2.0 AP "
690 "version");
691 goto fail;
692 }
7bc9c25d
JM		 693
694 if (sta->hs20_ie && wpabuf_len(sta->hs20_ie) > 0) {
695 const u8 *pos;
696 u8 buf[3];
697 u16 id;
698 pos = wpabuf_head_u8(sta->hs20_ie);
699 buf[0] = (*pos) >> 4;
700 if (((*pos) & HS20_PPS_MO_ID_PRESENT) &&
701 wpabuf_len(sta->hs20_ie) >= 3)
702 id = WPA_GET_LE16(pos + 1);
703 else
704 id = 0;
705 WPA_PUT_BE16(buf + 1, id);
706 if (!radius_msg_add_wfa(
707 msg,
708 RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION,
709 buf, sizeof(buf))) {
710 wpa_printf(MSG_ERROR, "Could not add HS 2.0 "
711 "STA version");
712 goto fail;
713 }
714 }
76579ec7
JM		 715 }
716#endif /* CONFIG_HS20 */
717
dbb6ed7e
MH		 718 if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0)
719 goto fail;
720
6fc6879b
JM		 721 return;
722
723 fail:
724 radius_msg_free(msg);
6fc6879b 725}
f88bd288 726#endif /* CONFIG_NO_RADIUS */
6fc6879b
JM		 727
728
6fc6879b
JM		 729static void handle_eap_response(struct hostapd_data *hapd,
730 struct sta_info *sta, struct eap_hdr *eap,
731 size_t len)
732{
733 u8 type, *data;
734 struct eapol_state_machine *sm = sta->eapol_sm;
735 if (sm == NULL)
736 return;
737
738 data = (u8 *) (eap + 1);
739
740 if (len < sizeof(*eap) + 1) {
61323e70 741 wpa_printf(MSG_INFO, "handle_eap_response: too short response data");
6fc6879b
JM		 742 return;
743 }
744
745 sm->eap_type_supp = type = data[0];
6fc6879b
JM		 746
747 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 Response-%s (%d)",
750 eap->code, eap->identifier, be_to_host16(eap->length),
2773ca09 751 eap_server_get_name(0, type), type);
6fc6879b
JM		 752
753 sm->dot1xAuthEapolRespFramesRx++;
754
755 wpabuf_free(sm->eap_if->eapRespData);
756 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
757 sm->eapolEap = TRUE;
758}
759
760
d3bddd8b
JM		 761static void handle_eap_initiate(struct hostapd_data *hapd,
762 struct sta_info *sta, struct eap_hdr *eap,
763 size_t len)
764{
765#ifdef CONFIG_ERP
766 u8 type, *data;
767 struct eapol_state_machine *sm = sta->eapol_sm;
768
769 if (sm == NULL)
770 return;
771
772 if (len < sizeof(*eap) + 1) {
773 wpa_printf(MSG_INFO,
774 "handle_eap_initiate: too short response data");
775 return;
776 }
777
778 data = (u8 *) (eap + 1);
779 type = data[0];
780
781 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
782 HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
783 "id=%d len=%d) from STA: EAP Initiate type %u",
784 eap->code, eap->identifier, be_to_host16(eap->length),
785 type);
786
787 wpabuf_free(sm->eap_if->eapRespData);
788 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
789 sm->eapolEap = TRUE;
790#endif /* CONFIG_ERP */
791}
792
793
6fc6879b
JM		 794/* Process incoming EAP packet from Supplicant */
795static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
796 u8 *buf, size_t len)
797{
798 struct eap_hdr *eap;
799 u16 eap_len;
800
801 if (len < sizeof(*eap)) {
61323e70 802 wpa_printf(MSG_INFO, " too short EAP packet");
6fc6879b
JM		 803 return;
804 }
805
806 eap = (struct eap_hdr *) buf;
807
808 eap_len = be_to_host16(eap->length);
809 wpa_printf(MSG_DEBUG, "EAP: code=%d identifier=%d length=%d",
810 eap->code, eap->identifier, eap_len);
811 if (eap_len < sizeof(*eap)) {
812 wpa_printf(MSG_DEBUG, " Invalid EAP length");
813 return;
814 } else if (eap_len > len) {
815 wpa_printf(MSG_DEBUG, " Too short frame to contain this EAP "
816 "packet");
817 return;
818 } else if (eap_len < len) {
819 wpa_printf(MSG_DEBUG, " Ignoring %lu extra bytes after EAP "
820 "packet", (unsigned long) len - eap_len);
821 }
822
823 switch (eap->code) {
824 case EAP_CODE_REQUEST:
825 wpa_printf(MSG_DEBUG, " (request)");
826 return;
827 case EAP_CODE_RESPONSE:
828 wpa_printf(MSG_DEBUG, " (response)");
829 handle_eap_response(hapd, sta, eap, eap_len);
830 break;
831 case EAP_CODE_SUCCESS:
832 wpa_printf(MSG_DEBUG, " (success)");
833 return;
834 case EAP_CODE_FAILURE:
835 wpa_printf(MSG_DEBUG, " (failure)");
836 return;
d3bddd8b
JM		 837 case EAP_CODE_INITIATE:
838 wpa_printf(MSG_DEBUG, " (initiate)");
839 handle_eap_initiate(hapd, sta, eap, eap_len);
840 break;
841 case EAP_CODE_FINISH:
842 wpa_printf(MSG_DEBUG, " (finish)");
843 break;
6fc6879b
JM		 844 default:
845 wpa_printf(MSG_DEBUG, " (unknown code)");
846 return;
847 }
848}
849
850
c30bd28b 851struct eapol_state_machine *
c02d52b4
JM		 852ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
853{
854 int flags = 0;
855 if (sta->flags & WLAN_STA_PREAUTH)
856 flags |= EAPOL_SM_PREAUTH;
857 if (sta->wpa_sm) {
439d4bf9 858 flags |= EAPOL_SM_USES_WPA;
c02d52b4
JM		 859 if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
860 flags |= EAPOL_SM_FROM_PMKSA_CACHE;
861 }
d79b7792 862 return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
1a819aa7
MB		 863 sta->wps_ie, sta->p2p_ie, sta,
864 sta->identity, sta->radius_cui);
c02d52b4
JM		 865}
866
867
f2accfe7
EP		 868static void ieee802_1x_save_eapol(struct sta_info *sta, const u8 *buf,
869 size_t len)
870{
871 if (sta->pending_eapol_rx) {
872 wpabuf_free(sta->pending_eapol_rx->buf);
873 } else {
874 sta->pending_eapol_rx =
875 os_malloc(sizeof(*sta->pending_eapol_rx));
876 if (!sta->pending_eapol_rx)
877 return;
878 }
879
880 sta->pending_eapol_rx->buf = wpabuf_alloc_copy(buf, len);
881 if (!sta->pending_eapol_rx->buf) {
882 os_free(sta->pending_eapol_rx);
883 sta->pending_eapol_rx = NULL;
884 return;
885 }
886
887 os_get_reltime(&sta->pending_eapol_rx->rx_time);
888}
889
890
1c6e69cc
JM		 891/**
892 * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
893 * @hapd: hostapd BSS data
894 * @sa: Source address (sender of the EAPOL frame)
895 * @buf: EAPOL frame
896 * @len: Length of buf in octets
897 *
898 * This function is called for each incoming EAPOL frame from the interface
899 */
6fc6879b
JM		 900void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
901 size_t len)
902{
903 struct sta_info *sta;
904 struct ieee802_1x_hdr *hdr;
905 struct ieee802_1x_eapol_key *key;
906 u16 datalen;
907 struct rsn_pmksa_cache_entry *pmksa;
df13a1cd 908 int key_mgmt;
6fc6879b 909
a14896e8 910 if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen &&
ad08c363 911 !hapd->conf->wps_state)
6fc6879b
JM		 912 return;
913
914 wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
915 (unsigned long) len, MAC2STR(sa));
916 sta = ap_get_sta(hapd, sa);
bf689a40
JM		 917 if (!sta || (!(sta->flags & (WLAN_STA_ASSOC | WLAN_STA_PREAUTH)) &&
918 !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
940a0ce9 919 wpa_printf(MSG_DEBUG, "IEEE 802.1X data frame from not "
c9265931 920 "associated/Pre-authenticating STA");
f2accfe7
EP		 921
922 if (sta && (sta->flags & WLAN_STA_AUTH)) {
923 wpa_printf(MSG_DEBUG, "Saving EAPOL frame from " MACSTR
924 " for later use", MAC2STR(sta->addr));
925 ieee802_1x_save_eapol(sta, buf, len);
926 }
927
6fc6879b
JM		 928 return;
929 }
930
931 if (len < sizeof(*hdr)) {
61323e70 932 wpa_printf(MSG_INFO, " too short IEEE 802.1X packet");
6fc6879b
JM		 933 return;
934 }
935
936 hdr = (struct ieee802_1x_hdr *) buf;
937 datalen = be_to_host16(hdr->length);
938 wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
939 hdr->version, hdr->type, datalen);
940
941 if (len - sizeof(*hdr) < datalen) {
61323e70 942 wpa_printf(MSG_INFO, " frame too short for this IEEE 802.1X packet");
6fc6879b
JM		 943 if (sta->eapol_sm)
944 sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
945 return;
946 }
947 if (len - sizeof(*hdr) > datalen) {
948 wpa_printf(MSG_DEBUG, " ignoring %lu extra octets after "
949 "IEEE 802.1X packet",
950 (unsigned long) len - sizeof(*hdr) - datalen);
951 }
952
953 if (sta->eapol_sm) {
954 sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
955 sta->eapol_sm->dot1xAuthEapolFramesRx++;
956 }
957
958 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
959 if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
960 hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
961 (key->type == EAPOL_KEY_TYPE_WPA ||
962 key->type == EAPOL_KEY_TYPE_RSN)) {
963 wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
964 sizeof(*hdr) + datalen);
965 return;
966 }
967
a14896e8 968 if (!hapd->conf->ieee802_1x && !hapd->conf->osen &&
df13a1cd
JM		 969 !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
970 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
971 "802.1X not enabled and WPS not used");
6fc6879b 972 return;
df13a1cd
JM		 973 }
974
975 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
976 if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
977 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
978 "STA is using PSK");
979 return;
980 }
6fc6879b
JM		 981
982 if (!sta->eapol_sm) {
c02d52b4 983 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
6fc6879b
JM		 984 if (!sta->eapol_sm)
985 return;
ad08c363
JM		 986
987#ifdef CONFIG_WPS
a14896e8 988 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state) {
17f6b900
JM		 989 u32 wflags = sta->flags & (WLAN_STA_WPS |
990 WLAN_STA_WPS2 |
991 WLAN_STA_MAYBE_WPS);
992 if (wflags == WLAN_STA_MAYBE_WPS ||
993 wflags == (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) {
994 /*
995 * Delay EAPOL frame transmission until a
996 * possible WPS STA initiates the handshake
997 * with EAPOL-Start. Only allow the wait to be
998 * skipped if the STA is known to support WPS
999 * 2.0.
1000 */
1001 wpa_printf(MSG_DEBUG, "WPS: Do not start "
1002 "EAPOL until EAPOL-Start is "
1003 "received");
1004 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1005 }
ad08c363
JM		 1006 }
1007#endif /* CONFIG_WPS */
a60e7213
JM		 1008
1009 sta->eapol_sm->eap_if->portEnabled = TRUE;
6fc6879b
JM		 1010 }
1011
1012 /* since we support version 1, we can ignore version field and proceed
1013 * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
1014 /* TODO: actually, we are not version 1 anymore.. However, Version 2
1015 * does not change frame contents, so should be ok to process frames
1016 * more or less identically. Some changes might be needed for
1017 * verification of fields. */
1018
1019 switch (hdr->type) {
1020 case IEEE802_1X_TYPE_EAP_PACKET:
1021 handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
1022 break;
1023
1024 case IEEE802_1X_TYPE_EAPOL_START:
1025 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1026 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Start "
1027 "from STA");
1028 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
1029 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1030 if (pmksa) {
1031 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
1032 HOSTAPD_LEVEL_DEBUG, "cached PMKSA "
1033 "available - ignore it since "
1034 "STA sent EAPOL-Start");
1035 wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
1036 }
1037 sta->eapol_sm->eapolStart = TRUE;
1038 sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
6fc58a89 1039 eap_server_clear_identity(sta->eapol_sm->eap);
6fc6879b
JM		 1040 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
1041 break;
1042
1043 case IEEE802_1X_TYPE_EAPOL_LOGOFF:
1044 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1045 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Logoff "
1046 "from STA");
1047 sta->acct_terminate_cause =
1048 RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
b1fa8bf1 1049 accounting_sta_stop(hapd, sta);
6fc6879b
JM		 1050 sta->eapol_sm->eapolLogoff = TRUE;
1051 sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
6fc58a89 1052 eap_server_clear_identity(sta->eapol_sm->eap);
6fc6879b
JM		 1053 break;
1054
1055 case IEEE802_1X_TYPE_EAPOL_KEY:
1056 wpa_printf(MSG_DEBUG, " EAPOL-Key");
6905dcb1 1057 if (!ap_sta_is_authorized(sta)) {
6fc6879b
JM		 1058 wpa_printf(MSG_DEBUG, " Dropped key data from "
1059 "unauthorized Supplicant");
1060 break;
1061 }
1062 break;
1063
1064 case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
1065 wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
1066 /* TODO: implement support for this; show data */
1067 break;
1068
1069 default:
1070 wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
1071 sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
1072 break;
1073 }
1074
1075 eapol_auth_step(sta->eapol_sm);
1076}
1077
1078
1c6e69cc
JM		 1079/**
1080 * ieee802_1x_new_station - Start IEEE 802.1X authentication
1081 * @hapd: hostapd BSS data
1082 * @sta: The station
1083 *
1084 * This function is called to start IEEE 802.1X authentication when a new
1085 * station completes IEEE 802.11 association.
1086 */
6fc6879b
JM		 1087void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
1088{
1089 struct rsn_pmksa_cache_entry *pmksa;
1090 int reassoc = 1;
1091 int force_1x = 0;
df13a1cd 1092 int key_mgmt;
6fc6879b 1093
ad08c363 1094#ifdef CONFIG_WPS
80d5a3db
JM		 1095 if (hapd->conf->wps_state &&
1096 ((hapd->conf->wpa && (sta->flags & WLAN_STA_MAYBE_WPS)) ||
1097 (sta->flags & WLAN_STA_WPS))) {
ad08c363
JM		 1098 /*
1099 * Need to enable IEEE 802.1X/EAPOL state machines for possible
1100 * WPS handshake even if IEEE 802.1X/EAPOL is not used for
1101 * authentication in this BSS.
1102 */
1103 force_1x = 1;
1104 }
1105#endif /* CONFIG_WPS */
1106
a14896e8 1107 if (!force_1x && !hapd->conf->ieee802_1x && !hapd->conf->osen) {
df13a1cd
JM		 1108 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - "
1109 "802.1X not enabled or forced for WPS");
31b4961f
JM		 1110 /*
1111 * Clear any possible EAPOL authenticator state to support
1112 * reassociation change from WPS to PSK.
1113 */
d7c3347f 1114 ieee802_1x_free_station(hapd, sta);
6fc6879b 1115 return;
df13a1cd
JM		 1116 }
1117
1118 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
1119 if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
1120 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - using PSK");
31b4961f
JM		 1121 /*
1122 * Clear any possible EAPOL authenticator state to support
1123 * reassociation change from WPA-EAP to PSK.
1124 */
d7c3347f 1125 ieee802_1x_free_station(hapd, sta);
df13a1cd
JM		 1126 return;
1127 }
6fc6879b
JM		 1128
1129 if (sta->eapol_sm == NULL) {
1130 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1131 HOSTAPD_LEVEL_DEBUG, "start authentication");
c02d52b4 1132 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
6fc6879b
JM		 1133 if (sta->eapol_sm == NULL) {
1134 hostapd_logger(hapd, sta->addr,
1135 HOSTAPD_MODULE_IEEE8021X,
1136 HOSTAPD_LEVEL_INFO,
1137 "failed to allocate state machine");
1138 return;
1139 }
1140 reassoc = 0;
1141 }
1142
ad08c363 1143#ifdef CONFIG_WPS
a8d05fca 1144 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
a14896e8
JM		 1145 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state &&
1146 !(sta->flags & WLAN_STA_WPS2)) {
ad08c363 1147 /*
17f6b900
JM		 1148 * Delay EAPOL frame transmission until a possible WPS STA
1149 * initiates the handshake with EAPOL-Start. Only allow the
1150 * wait to be skipped if the STA is known to support WPS 2.0.
ad08c363 1151 */
17f6b900
JM		 1152 wpa_printf(MSG_DEBUG, "WPS: Do not start EAPOL until "
1153 "EAPOL-Start is received");
ad08c363
JM		 1154 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1155 }
1156#endif /* CONFIG_WPS */
1157
6fc6879b
JM		 1158 sta->eapol_sm->eap_if->portEnabled = TRUE;
1159
4ec1fd8e 1160#ifdef CONFIG_IEEE80211R_AP
55bce124
JM		 1161 if (sta->auth_alg == WLAN_AUTH_FT) {
1162 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1163 HOSTAPD_LEVEL_DEBUG,
1164 "PMK from FT - skip IEEE 802.1X/EAP");
1165 /* Setup EAPOL state machines to already authenticated state
1166 * because of existing FT information from R0KH. */
1167 sta->eapol_sm->keyRun = TRUE;
1168 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1169 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1170 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1171 sta->eapol_sm->authSuccess = TRUE;
c7bce24d 1172 sta->eapol_sm->authFail = FALSE;
f68d491b 1173 sta->eapol_sm->portValid = TRUE;
55bce124
JM		 1174 if (sta->eapol_sm->eap)
1175 eap_sm_notify_cached(sta->eapol_sm->eap);
1176 /* TODO: get vlan_id from R0KH using RRB message */
1177 return;
1178 }
4ec1fd8e 1179#endif /* CONFIG_IEEE80211R_AP */
55bce124 1180
ff338fab
JM		 1181#ifdef CONFIG_FILS
1182 if (sta->auth_alg == WLAN_AUTH_FILS_SK ||
1183 sta->auth_alg == WLAN_AUTH_FILS_SK_PFS ||
1184 sta->auth_alg == WLAN_AUTH_FILS_PK) {
1185 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1186 HOSTAPD_LEVEL_DEBUG,
1187 "PMK from FILS - skip IEEE 802.1X/EAP");
1188 /* Setup EAPOL state machines to already authenticated state
1189 * because of existing FILS information. */
1190 sta->eapol_sm->keyRun = TRUE;
1191 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1192 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1193 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1194 sta->eapol_sm->authSuccess = TRUE;
1195 sta->eapol_sm->authFail = FALSE;
1196 sta->eapol_sm->portValid = TRUE;
1197 if (sta->eapol_sm->eap)
1198 eap_sm_notify_cached(sta->eapol_sm->eap);
1199 return;
1200 }
1201#endif /* CONFIG_FILS */
1202
6fc6879b
JM		 1203 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1204 if (pmksa) {
6fc6879b
JM		 1205 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1206 HOSTAPD_LEVEL_DEBUG,
1207 "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
1208 /* Setup EAPOL state machines to already authenticated state
1209 * because of existing PMKSA information in the cache. */
1210 sta->eapol_sm->keyRun = TRUE;
1211 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1212 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1213 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1214 sta->eapol_sm->authSuccess = TRUE;
c7bce24d 1215 sta->eapol_sm->authFail = FALSE;
6fc6879b
JM		 1216 if (sta->eapol_sm->eap)
1217 eap_sm_notify_cached(sta->eapol_sm->eap);
1889af2e 1218 pmksa_cache_to_eapol_data(hapd, pmksa, sta->eapol_sm);
c8e6beab 1219 ap_sta_bind_vlan(hapd, sta);
6fc6879b
JM		 1220 } else {
1221 if (reassoc) {
1222 /*
1223 * Force EAPOL state machines to start
1224 * re-authentication without having to wait for the
1225 * Supplicant to send EAPOL-Start.
1226 */
1227 sta->eapol_sm->reAuthenticate = TRUE;
1228 }
1229 eapol_auth_step(sta->eapol_sm);
1230 }
1231}
1232
1233
d7c3347f 1234void ieee802_1x_free_station(struct hostapd_data *hapd, struct sta_info *sta)
6fc6879b
JM		 1235{
1236 struct eapol_state_machine *sm = sta->eapol_sm;
1237
d7c3347f
JM		 1238#ifdef CONFIG_HS20
1239 eloop_cancel_timeout(ieee802_1x_wnm_notif_send, hapd, sta);
1240#endif /* CONFIG_HS20 */
1241
f2accfe7
EP		 1242 if (sta->pending_eapol_rx) {
1243 wpabuf_free(sta->pending_eapol_rx->buf);
1244 os_free(sta->pending_eapol_rx);
1245 sta->pending_eapol_rx = NULL;
1246 }
1247
6fc6879b
JM		 1248 if (sm == NULL)
1249 return;
1250
1251 sta->eapol_sm = NULL;
1252
f88bd288 1253#ifndef CONFIG_NO_RADIUS
9e7245bd 1254 radius_msg_free(sm->last_recv_radius);
010dc068 1255 radius_free_class(&sm->radius_class);
f88bd288 1256#endif /* CONFIG_NO_RADIUS */
6fc6879b 1257
6fc6879b
JM		 1258 eapol_auth_free(sm);
1259}
1260
1261
f88bd288 1262#ifndef CONFIG_NO_RADIUS
6fc6879b
JM		 1263static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
1264 struct sta_info *sta)
1265{
e100828b
JM		 1266 struct wpabuf *eap;
1267 const struct eap_hdr *hdr;
6fc6879b
JM		 1268 int eap_type = -1;
1269 char buf[64];
1270 struct radius_msg *msg;
1271 struct eapol_state_machine *sm = sta->eapol_sm;
1272
1273 if (sm == NULL || sm->last_recv_radius == NULL) {
1274 if (sm)
1275 sm->eap_if->aaaEapNoReq = TRUE;
1276 return;
1277 }
1278
1279 msg = sm->last_recv_radius;
1280
e100828b 1281 eap = radius_msg_get_eap(msg);
6fc6879b
JM		 1282 if (eap == NULL) {
1283 /* RFC 3579, Chap. 2.6.3:
1284 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
1285 * attribute */
1286 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1287 HOSTAPD_LEVEL_WARNING, "could not extract "
1288 "EAP-Message from RADIUS message");
1289 sm->eap_if->aaaEapNoReq = TRUE;
1290 return;
1291 }
1292
e100828b 1293 if (wpabuf_len(eap) < sizeof(*hdr)) {
6fc6879b
JM		 1294 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1295 HOSTAPD_LEVEL_WARNING, "too short EAP packet "
1296 "received from authentication server");
e100828b 1297 wpabuf_free(eap);
6fc6879b
JM		 1298 sm->eap_if->aaaEapNoReq = TRUE;
1299 return;
1300 }
1301
e100828b
JM		 1302 if (wpabuf_len(eap) > sizeof(*hdr))
1303 eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)];
6fc6879b 1304
e100828b 1305 hdr = wpabuf_head(eap);
6fc6879b
JM		 1306 switch (hdr->code) {
1307 case EAP_CODE_REQUEST:
1308 if (eap_type >= 0)
1309 sm->eap_type_authsrv = eap_type;
1310 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
414f23d8 1311 eap_server_get_name(0, eap_type), eap_type);
6fc6879b
JM		 1312 break;
1313 case EAP_CODE_RESPONSE:
1314 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
414f23d8 1315 eap_server_get_name(0, eap_type), eap_type);
6fc6879b
JM		 1316 break;
1317 case EAP_CODE_SUCCESS:
1318 os_strlcpy(buf, "EAP Success", sizeof(buf));
1319 break;
1320 case EAP_CODE_FAILURE:
1321 os_strlcpy(buf, "EAP Failure", sizeof(buf));
1322 break;
1323 default:
1324 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
1325 break;
1326 }
1327 buf[sizeof(buf) - 1] = '\0';
1328 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1329 HOSTAPD_LEVEL_DEBUG, "decapsulated EAP packet (code=%d "
1330 "id=%d len=%d) from RADIUS server: %s",
1331 hdr->code, hdr->identifier, be_to_host16(hdr->length),
1332 buf);
1333 sm->eap_if->aaaEapReq = TRUE;
1334
1335 wpabuf_free(sm->eap_if->aaaEapReqData);
e100828b 1336 sm->eap_if->aaaEapReqData = eap;
6fc6879b
JM		 1337}
1338
1339
1340static void ieee802_1x_get_keys(struct hostapd_data *hapd,
1341 struct sta_info *sta, struct radius_msg *msg,
1342 struct radius_msg *req,
7d02e641
JM		 1343 const u8 *shared_secret,
1344 size_t shared_secret_len)
6fc6879b
JM		 1345{
1346 struct radius_ms_mppe_keys *keys;
1347 struct eapol_state_machine *sm = sta->eapol_sm;
1348 if (sm == NULL)
1349 return;
1350
1351 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
1352 shared_secret_len);
1353
1354 if (keys && keys->send && keys->recv) {
1355 size_t len = keys->send_len + keys->recv_len;
1356 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
1357 keys->send, keys->send_len);
1358 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
1359 keys->recv, keys->recv_len);
1360
1361 os_free(sm->eap_if->aaaEapKeyData);
1362 sm->eap_if->aaaEapKeyData = os_malloc(len);
1363 if (sm->eap_if->aaaEapKeyData) {
1364 os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
1365 keys->recv_len);
1366 os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
1367 keys->send, keys->send_len);
1368 sm->eap_if->aaaEapKeyDataLen = len;
1369 sm->eap_if->aaaEapKeyAvailable = TRUE;
1370 }
400de9b1
BG		 1371 } else {
1372 wpa_printf(MSG_DEBUG,
1373 "MS-MPPE: 1x_get_keys, could not get keys: %p send: %p recv: %p",
1374 keys, keys ? keys->send : NULL,
1375 keys ? keys->recv : NULL);
6fc6879b
JM		 1376 }
1377
1378 if (keys) {
1379 os_free(keys->send);
1380 os_free(keys->recv);
1381 os_free(keys);
1382 }
1383}
1384
1385
1386static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
1387 struct sta_info *sta,
1388 struct radius_msg *msg)
1389{
a6da824b 1390 u8 *attr_class;
6fc6879b
JM		 1391 size_t class_len;
1392 struct eapol_state_machine *sm = sta->eapol_sm;
1393 int count, i;
1394 struct radius_attr_data *nclass;
1395 size_t nclass_count;
1396
1397 if (!hapd->conf->radius->acct_server || hapd->radius == NULL ||
1398 sm == NULL)
1399 return;
1400
010dc068 1401 radius_free_class(&sm->radius_class);
6fc6879b
JM		 1402 count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
1403 if (count <= 0)
1404 return;
1405
f9884c09 1406 nclass = os_calloc(count, sizeof(struct radius_attr_data));
6fc6879b
JM		 1407 if (nclass == NULL)
1408 return;
1409
1410 nclass_count = 0;
1411
a6da824b 1412 attr_class = NULL;
6fc6879b
JM		 1413 for (i = 0; i < count; i++) {
1414 do {
1415 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
a6da824b
JM		 1416 &attr_class, &class_len,
1417 attr_class) < 0) {
6fc6879b
JM		 1418 i = count;
1419 break;
1420 }
1421 } while (class_len < 1);
1422
a1f11e34 1423 nclass[nclass_count].data = os_memdup(attr_class, class_len);
6fc6879b
JM		 1424 if (nclass[nclass_count].data == NULL)
1425 break;
1426
6fc6879b
JM		 1427 nclass[nclass_count].len = class_len;
1428 nclass_count++;
1429 }
1430
1431 sm->radius_class.attr = nclass;
1432 sm->radius_class.count = nclass_count;
1433 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Stored %lu RADIUS Class "
1434 "attributes for " MACSTR,
1435 (unsigned long) sm->radius_class.count,
1436 MAC2STR(sta->addr));
1437}
1438
1439
1440/* Update sta->identity based on User-Name attribute in Access-Accept */
1441static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
1442 struct sta_info *sta,
1443 struct radius_msg *msg)
1444{
1445 u8 *buf, *identity;
1446 size_t len;
1447 struct eapol_state_machine *sm = sta->eapol_sm;
1448
1449 if (sm == NULL)
1450 return;
1451
1452 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
1453 NULL) < 0)
1454 return;
1455
5e24dc8a 1456 identity = (u8 *) dup_binstr(buf, len);
6fc6879b
JM		 1457 if (identity == NULL)
1458 return;
1459
6fc6879b
JM		 1460 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1461 HOSTAPD_LEVEL_DEBUG, "old identity '%s' updated with "
1462 "User-Name from Access-Accept '%s'",
1463 sm->identity ? (char *) sm->identity : "N/A",
1464 (char *) identity);
1465
1466 os_free(sm->identity);
1467 sm->identity = identity;
1468 sm->identity_len = len;
1469}
1470
1471
4e132a61
JM		 1472/* Update CUI based on Chargeable-User-Identity attribute in Access-Accept */
1473static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd,
1474 struct sta_info *sta,
1475 struct radius_msg *msg)
1476{
1477 struct eapol_state_machine *sm = sta->eapol_sm;
1478 struct wpabuf *cui;
1479 u8 *buf;
1480 size_t len;
1481
1482 if (sm == NULL)
1483 return;
1484
1485 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
1486 &buf, &len, NULL) < 0)
1487 return;
1488
1489 cui = wpabuf_alloc_copy(buf, len);
1490 if (cui == NULL)
1491 return;
1492
1493 wpabuf_free(sm->radius_cui);
1494 sm->radius_cui = cui;
1495}
1496
1497
6ca0853d
JM		 1498#ifdef CONFIG_HS20
1499
1500static void ieee802_1x_hs20_sub_rem(struct sta_info *sta, u8 *pos, size_t len)
1501{
1502 sta->remediation = 1;
1503 os_free(sta->remediation_url);
1504 if (len > 2) {
1505 sta->remediation_url = os_malloc(len);
1506 if (!sta->remediation_url)
1507 return;
1508 sta->remediation_method = pos[0];
1509 os_memcpy(sta->remediation_url, pos + 1, len - 1);
1510 sta->remediation_url[len - 1] = '\0';
1511 wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1512 "for " MACSTR " - server method %u URL %s",
1513 MAC2STR(sta->addr), sta->remediation_method,
1514 sta->remediation_url);
1515 } else {
1516 sta->remediation_url = NULL;
1517 wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1518 "for " MACSTR, MAC2STR(sta->addr));
1519 }
1520 /* TODO: assign the STA into remediation VLAN or add filtering */
1521}
1522
8e1146d9
JM		 1523
1524static void ieee802_1x_hs20_deauth_req(struct hostapd_data *hapd,
1525 struct sta_info *sta, u8 *pos,
1526 size_t len)
1527{
1528 if (len < 3)
1529 return; /* Malformed information */
1530 sta->hs20_deauth_requested = 1;
1531 wpa_printf(MSG_DEBUG, "HS 2.0: Deauthentication request - Code %u "
1532 "Re-auth Delay %u",
1533 *pos, WPA_GET_LE16(pos + 1));
1534 wpabuf_free(sta->hs20_deauth_req);
1535 sta->hs20_deauth_req = wpabuf_alloc(len + 1);
1536 if (sta->hs20_deauth_req) {
1537 wpabuf_put_data(sta->hs20_deauth_req, pos, 3);
1538 wpabuf_put_u8(sta->hs20_deauth_req, len - 3);
1539 wpabuf_put_data(sta->hs20_deauth_req, pos + 3, len - 3);
1540 }
1541 ap_sta_session_timeout(hapd, sta, hapd->conf->hs20_deauth_req_timeout);
1542}
1543
97596f8e
JM		 1544
1545static void ieee802_1x_hs20_session_info(struct hostapd_data *hapd,
1546 struct sta_info *sta, u8 *pos,
1547 size_t len, int session_timeout)
1548{
1549 unsigned int swt;
1550 int warning_time, beacon_int;
1551
1552 if (len < 1)
1553 return; /* Malformed information */
1554 os_free(sta->hs20_session_info_url);
1555 sta->hs20_session_info_url = os_malloc(len);
1556 if (sta->hs20_session_info_url == NULL)
1557 return;
1558 swt = pos[0];
1559 os_memcpy(sta->hs20_session_info_url, pos + 1, len - 1);
1560 sta->hs20_session_info_url[len - 1] = '\0';
1561 wpa_printf(MSG_DEBUG, "HS 2.0: Session Information URL='%s' SWT=%u "
1562 "(session_timeout=%d)",
1563 sta->hs20_session_info_url, swt, session_timeout);
1564 if (session_timeout < 0) {
1565 wpa_printf(MSG_DEBUG, "HS 2.0: No Session-Timeout set - ignore session info URL");
1566 return;
1567 }
1568 if (swt == 255)
1569 swt = 1; /* Use one minute as the AP selected value */
1570
1571 if ((unsigned int) session_timeout < swt * 60)
1572 warning_time = 0;
1573 else
1574 warning_time = session_timeout - swt * 60;
1575
1576 beacon_int = hapd->iconf->beacon_int;
1577 if (beacon_int < 1)
1578 beacon_int = 100; /* best guess */
1579 sta->hs20_disassoc_timer = swt * 60 * 1000 / beacon_int * 125 / 128;
1580 if (sta->hs20_disassoc_timer > 65535)
1581 sta->hs20_disassoc_timer = 65535;
1582
1583 ap_sta_session_warning_timeout(hapd, sta, warning_time);
1584}
1585
6ca0853d
JM		 1586#endif /* CONFIG_HS20 */
1587
1588
1589static void ieee802_1x_check_hs20(struct hostapd_data *hapd,
1590 struct sta_info *sta,
97596f8e
JM		 1591 struct radius_msg *msg,
1592 int session_timeout)
6ca0853d
JM		 1593{
1594#ifdef CONFIG_HS20
1595 u8 *buf, *pos, *end, type, sublen;
1596 size_t len;
1597
1598 buf = NULL;
1599 sta->remediation = 0;
8e1146d9
JM		 1600 sta->hs20_deauth_requested = 0;
1601
6ca0853d
JM		 1602 for (;;) {
1603 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_VENDOR_SPECIFIC,
1604 &buf, &len, buf) < 0)
1605 break;
1606 if (len < 6)
1607 continue;
1608 pos = buf;
1609 end = buf + len;
1610 if (WPA_GET_BE32(pos) != RADIUS_VENDOR_ID_WFA)
1611 continue;
1612 pos += 4;
1613
1614 type = *pos++;
1615 sublen = *pos++;
1616 if (sublen < 2)
1617 continue; /* invalid length */
1618 sublen -= 2; /* skip header */
1619 if (pos + sublen > end)
1620 continue; /* invalid WFA VSA */
1621
1622 switch (type) {
1623 case RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION:
1624 ieee802_1x_hs20_sub_rem(sta, pos, sublen);
1625 break;
8e1146d9
JM		 1626 case RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ:
1627 ieee802_1x_hs20_deauth_req(hapd, sta, pos, sublen);
1628 break;
97596f8e
JM		 1629 case RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL:
1630 ieee802_1x_hs20_session_info(hapd, sta, pos, sublen,
1631 session_timeout);
1632 break;
6ca0853d
JM		 1633 }
1634 }
1635#endif /* CONFIG_HS20 */
1636}
1637
1638
6fc6879b
JM		 1639struct sta_id_search {
1640 u8 identifier;
1641 struct eapol_state_machine *sm;
1642};
1643
1644
1645static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
1646 struct sta_info *sta,
1647 void *ctx)
1648{
1649 struct sta_id_search *id_search = ctx;
1650 struct eapol_state_machine *sm = sta->eapol_sm;
1651
1652 if (sm && sm->radius_identifier >= 0 &&
1653 sm->radius_identifier == id_search->identifier) {
1654 id_search->sm = sm;
1655 return 1;
1656 }
1657 return 0;
1658}
1659
1660
1661static struct eapol_state_machine *
1662ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
1663{
1664 struct sta_id_search id_search;
1665 id_search.identifier = identifier;
1666 id_search.sm = NULL;
1667 ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
1668 return id_search.sm;
1669}
1670
1671
1c6e69cc
JM		 1672/**
1673 * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
1674 * @msg: RADIUS response message
1675 * @req: RADIUS request message
1676 * @shared_secret: RADIUS shared secret
1677 * @shared_secret_len: Length of shared_secret in octets
1678 * @data: Context data (struct hostapd_data *)
1679 * Returns: Processing status
1680 */
6fc6879b
JM		 1681static RadiusRxResult
1682ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
7d02e641 1683 const u8 *shared_secret, size_t shared_secret_len,
6fc6879b
JM		 1684 void *data)
1685{
1686 struct hostapd_data *hapd = data;
1687 struct sta_info *sta;
1688 u32 session_timeout = 0, termination_action, acct_interim_interval;
1889af2e 1689 int session_timeout_set;
6fc6879b
JM		 1690 struct eapol_state_machine *sm;
1691 int override_eapReq = 0;
1489e11a 1692 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
1889af2e 1693 struct vlan_description vlan_desc;
8e44c192
MB		 1694#ifndef CONFIG_NO_VLAN
1695 int *untagged, *tagged, *notempty;
1696#endif /* CONFIG_NO_VLAN */
1889af2e
MB		 1697
1698 os_memset(&vlan_desc, 0, sizeof(vlan_desc));
6fc6879b 1699
1489e11a 1700 sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
6fc6879b
JM		 1701 if (sm == NULL) {
1702 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Could not find matching "
1703 "station for this RADIUS message");
1704 return RADIUS_RX_UNKNOWN;
1705 }
1706 sta = sm->sta;
1707
1708 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
1709 * present when packet contains an EAP-Message attribute */
1489e11a 1710 if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
6fc6879b
JM		 1711 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
1712 0) < 0 &&
1713 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
1714 wpa_printf(MSG_DEBUG, "Allowing RADIUS Access-Reject without "
1715 "Message-Authenticator since it does not include "
1716 "EAP-Message");
1717 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
1718 req, 1)) {
61323e70 1719 wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have correct Message-Authenticator - dropped");
6fc6879b
JM		 1720 return RADIUS_RX_INVALID_AUTHENTICATOR;
1721 }
1722
1489e11a
JM		 1723 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
1724 hdr->code != RADIUS_CODE_ACCESS_REJECT &&
1725 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
61323e70 1726 wpa_printf(MSG_INFO, "Unknown RADIUS message code");
6fc6879b
JM		 1727 return RADIUS_RX_UNKNOWN;
1728 }
1729
1730 sm->radius_identifier = -1;
1731 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
1732 MAC2STR(sta->addr));
1733
9e7245bd 1734 radius_msg_free(sm->last_recv_radius);
6fc6879b
JM		 1735 sm->last_recv_radius = msg;
1736
1737 session_timeout_set =
1738 !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
1739 &session_timeout);
1740 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
1741 &termination_action))
1742 termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
1743
5843e1c9 1744 if (hapd->conf->acct_interim_interval == 0 &&
1489e11a 1745 hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
6fc6879b
JM		 1746 radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
1747 &acct_interim_interval) == 0) {
1748 if (acct_interim_interval < 60) {
1749 hostapd_logger(hapd, sta->addr,
1750 HOSTAPD_MODULE_IEEE8021X,
1751 HOSTAPD_LEVEL_INFO,
1752 "ignored too small "
1753 "Acct-Interim-Interval %d",
1754 acct_interim_interval);
1755 } else
1756 sta->acct_interim_interval = acct_interim_interval;
1757 }
1758
1759
1489e11a 1760 switch (hdr->code) {
6fc6879b 1761 case RADIUS_CODE_ACCESS_ACCEPT:
30b32314 1762#ifndef CONFIG_NO_VLAN
1889af2e 1763 if (hapd->conf->ssid.dynamic_vlan != DYNAMIC_VLAN_DISABLED) {
8e44c192
MB		 1764 notempty = &vlan_desc.notempty;
1765 untagged = &vlan_desc.untagged;
1766 tagged = vlan_desc.tagged;
1767 *notempty = !!radius_msg_get_vlanid(msg, untagged,
1768 MAX_NUM_TAGGED_VLAN,
1769 tagged);
1889af2e
MB		 1770 }
1771
1772 if (vlan_desc.notempty &&
1773 !hostapd_vlan_valid(hapd->conf->vlan, &vlan_desc)) {
a5e81ba9 1774 sta->eapol_sm->authFail = TRUE;
6fc6879b
JM		 1775 hostapd_logger(hapd, sta->addr,
1776 HOSTAPD_MODULE_RADIUS,
1777 HOSTAPD_LEVEL_INFO,
8e44c192
MB		 1778 "Invalid VLAN %d%s received from RADIUS server",
1779 vlan_desc.untagged,
1780 vlan_desc.tagged[0] ? "+" : "");
1889af2e
MB		 1781 os_memset(&vlan_desc, 0, sizeof(vlan_desc));
1782 ap_sta_set_vlan(hapd, sta, &vlan_desc);
a5e81ba9 1783 break;
1889af2e
MB		 1784 }
1785
1786 if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_REQUIRED &&
1787 !vlan_desc.notempty) {
6fc6879b
JM		 1788 sta->eapol_sm->authFail = TRUE;
1789 hostapd_logger(hapd, sta->addr,
1790 HOSTAPD_MODULE_IEEE8021X,
1791 HOSTAPD_LEVEL_INFO, "authentication "
1792 "server did not include required VLAN "
1793 "ID in Access-Accept");
1794 break;
1795 }
30b32314 1796#endif /* CONFIG_NO_VLAN */
6fc6879b 1797
1889af2e
MB		 1798 if (ap_sta_set_vlan(hapd, sta, &vlan_desc) < 0)
1799 break;
1800
1801#ifndef CONFIG_NO_VLAN
1802 if (sta->vlan_id > 0) {
1803 hostapd_logger(hapd, sta->addr,
1804 HOSTAPD_MODULE_RADIUS,
1805 HOSTAPD_LEVEL_INFO,
1806 "VLAN ID %d", sta->vlan_id);
1807 }
1808#endif /* CONFIG_NO_VLAN */
1809
a5e81ba9 1810 if ((sta->flags & WLAN_STA_ASSOC) &&
c8e6beab 1811 ap_sta_bind_vlan(hapd, sta) < 0)
4254100d 1812 break;
6fc6879b 1813
47ea24c1
JM		 1814 sta->session_timeout_set = !!session_timeout_set;
1815 sta->session_timeout = session_timeout;
1816
6fc6879b
JM		 1817 /* RFC 3580, Ch. 3.17 */
1818 if (session_timeout_set && termination_action ==
1819 RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) {
1820 sm->reAuthPeriod = session_timeout;
1821 } else if (session_timeout_set)
1822 ap_sta_session_timeout(hapd, sta, session_timeout);
1823
1824 sm->eap_if->aaaSuccess = TRUE;
1825 override_eapReq = 1;
1826 ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
1827 shared_secret_len);
1828 ieee802_1x_store_radius_class(hapd, sta, msg);
1829 ieee802_1x_update_sta_identity(hapd, sta, msg);
4e132a61 1830 ieee802_1x_update_sta_cui(hapd, sta, msg);
97596f8e
JM		 1831 ieee802_1x_check_hs20(hapd, sta, msg,
1832 session_timeout_set ?
1833 (int) session_timeout : -1);
6fc6879b
JM		 1834 break;
1835 case RADIUS_CODE_ACCESS_REJECT:
1836 sm->eap_if->aaaFail = TRUE;
1837 override_eapReq = 1;
1838 break;
1839 case RADIUS_CODE_ACCESS_CHALLENGE:
1840 sm->eap_if->aaaEapReq = TRUE;
1841 if (session_timeout_set) {
1842 /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
8e09c6d2
JM		 1843 sm->eap_if->aaaMethodTimeout = session_timeout;
1844 hostapd_logger(hapd, sm->addr,
1845 HOSTAPD_MODULE_IEEE8021X,
1846 HOSTAPD_LEVEL_DEBUG,
1847 "using EAP timeout of %d seconds (from "
1848 "RADIUS)",
1849 sm->eap_if->aaaMethodTimeout);
1850 } else {
1851 /*
1852 * Use dynamic retransmission behavior per EAP
1853 * specification.
1854 */
1855 sm->eap_if->aaaMethodTimeout = 0;
1856 }
6fc6879b
JM		 1857 break;
1858 }
1859
1860 ieee802_1x_decapsulate_radius(hapd, sta);
1861 if (override_eapReq)
1862 sm->eap_if->aaaEapReq = FALSE;
1863
c4fd6d8a
JM		 1864#ifdef CONFIG_FILS
1865#ifdef NEED_AP_MLME
1866 if (sta->flags & WLAN_STA_PENDING_FILS_ERP) {
1867 /* TODO: Add a PMKSA entry on success? */
1868 ieee802_11_finish_fils_auth(
1869 hapd, sta, hdr->code == RADIUS_CODE_ACCESS_ACCEPT,
1870 sm->eap_if->aaaEapReqData,
1871 sm->eap_if->aaaEapKeyData,
1872 sm->eap_if->aaaEapKeyDataLen);
1873 }
1874#endif /* NEED_AP_MLME */
1875#endif /* CONFIG_FILS */
1876
6fc6879b
JM		 1877 eapol_auth_step(sm);
1878
1879 return RADIUS_RX_QUEUED;
1880}
f88bd288 1881#endif /* CONFIG_NO_RADIUS */
6fc6879b
JM		 1882
1883
1884void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
1885{
1886 struct eapol_state_machine *sm = sta->eapol_sm;
1887 if (sm == NULL)
1888 return;
1889
1890 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1891 HOSTAPD_LEVEL_DEBUG, "aborting authentication");
1892
f88bd288 1893#ifndef CONFIG_NO_RADIUS
9e7245bd
JM		 1894 radius_msg_free(sm->last_recv_radius);
1895 sm->last_recv_radius = NULL;
f88bd288 1896#endif /* CONFIG_NO_RADIUS */
805e6dc6
JM		 1897
1898 if (sm->eap_if->eapTimeout) {
1899 /*
1900 * Disconnect the STA since it did not reply to the last EAP
1901 * request and we cannot continue EAP processing (EAP-Failure
1902 * could only be sent if the EAP peer actually replied).
1903 */
afcc9ea1
BG		 1904 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "EAP Timeout, STA " MACSTR,
1905 MAC2STR(sta->addr));
1906
805e6dc6 1907 sm->eap_if->portEnabled = FALSE;
45cefa0b
JM		 1908 ap_sta_disconnect(hapd, sta, sta->addr,
1909 WLAN_REASON_PREV_AUTH_NOT_VALID);
805e6dc6 1910 }
6fc6879b
JM		 1911}
1912
1913
6fc6879b
JM		 1914static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
1915{
f55802e8
JM		 1916 struct eapol_authenticator *eapol = hapd->eapol_auth;
1917
6fc6879b
JM		 1918 if (hapd->conf->default_wep_key_len < 1)
1919 return 0;
1920
f55802e8
JM		 1921 os_free(eapol->default_wep_key);
1922 eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
1923 if (eapol->default_wep_key == NULL ||
3642c431
JM		 1924 random_get_bytes(eapol->default_wep_key,
1925 hapd->conf->default_wep_key_len)) {
61323e70 1926 wpa_printf(MSG_INFO, "Could not generate random WEP key");
f55802e8
JM		 1927 os_free(eapol->default_wep_key);
1928 eapol->default_wep_key = NULL;
6fc6879b
JM		 1929 return -1;
1930 }
1931
1932 wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
f55802e8 1933 eapol->default_wep_key,
6fc6879b
JM		 1934 hapd->conf->default_wep_key_len);
1935
1936 return 0;
1937}
1938
1939
1940static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
1941 struct sta_info *sta, void *ctx)
1942{
1943 if (sta->eapol_sm) {
1944 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1945 eapol_auth_step(sta->eapol_sm);
1946 }
1947 return 0;
1948}
1949
1950
1951static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
1952{
1953 struct hostapd_data *hapd = eloop_ctx;
f55802e8 1954 struct eapol_authenticator *eapol = hapd->eapol_auth;
6fc6879b 1955
f55802e8
JM		 1956 if (eapol->default_wep_key_idx >= 3)
1957 eapol->default_wep_key_idx =
6fc6879b
JM		 1958 hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
1959 else
f55802e8 1960 eapol->default_wep_key_idx++;
6fc6879b
JM		 1961
1962 wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
f55802e8 1963 eapol->default_wep_key_idx);
95de34a1 1964
6fc6879b
JM		 1965 if (ieee802_1x_rekey_broadcast(hapd)) {
1966 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1967 HOSTAPD_LEVEL_WARNING, "failed to generate a "
1968 "new broadcast key");
f55802e8
JM		 1969 os_free(eapol->default_wep_key);
1970 eapol->default_wep_key = NULL;
6fc6879b
JM		 1971 return;
1972 }
1973
1974 /* TODO: Could setup key for RX here, but change default TX keyid only
1975 * after new broadcast key has been sent to all stations. */
0382097e
JM		 1976 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
1977 broadcast_ether_addr,
3acdf771
JM		 1978 eapol->default_wep_key_idx, 1, NULL, 0,
1979 eapol->default_wep_key,
1980 hapd->conf->default_wep_key_len)) {
6fc6879b
JM		 1981 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1982 HOSTAPD_LEVEL_WARNING, "failed to configure a "
1983 "new broadcast key");
f55802e8
JM		 1984 os_free(eapol->default_wep_key);
1985 eapol->default_wep_key = NULL;
6fc6879b
JM		 1986 return;
1987 }
1988
1989 ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
1990
1991 if (hapd->conf->wep_rekeying_period > 0) {
1992 eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
1993 ieee802_1x_rekey, hapd, NULL);
1994 }
1995}
1996
1997
1998static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
1999 const u8 *data, size_t datalen)
2000{
4e22adb4
JM		 2001#ifdef CONFIG_WPS
2002 struct sta_info *sta = sta_ctx;
2003
2004 if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
2005 WLAN_STA_MAYBE_WPS) {
2006 const u8 *identity;
2007 size_t identity_len;
2008 struct eapol_state_machine *sm = sta->eapol_sm;
2009
2010 identity = eap_get_identity(sm->eap, &identity_len);
2011 if (identity &&
2012 ((identity_len == WSC_ID_ENROLLEE_LEN &&
2013 os_memcmp(identity, WSC_ID_ENROLLEE,
2014 WSC_ID_ENROLLEE_LEN) == 0) ||
2015 (identity_len == WSC_ID_REGISTRAR_LEN &&
2016 os_memcmp(identity, WSC_ID_REGISTRAR,
2017 WSC_ID_REGISTRAR_LEN) == 0))) {
2018 wpa_printf(MSG_DEBUG, "WPS: WLAN_STA_MAYBE_WPS -> "
2019 "WLAN_STA_WPS");
2020 sta->flags |= WLAN_STA_WPS;
2021 }
2022 }
2023#endif /* CONFIG_WPS */
2024
6fc6879b
JM		 2025 ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
2026}
2027
2028
2029static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
2030 const u8 *data, size_t datalen)
2031{
f88bd288 2032#ifndef CONFIG_NO_RADIUS
6fc6879b
JM		 2033 struct hostapd_data *hapd = ctx;
2034 struct sta_info *sta = sta_ctx;
2035
2036 ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
f88bd288 2037#endif /* CONFIG_NO_RADIUS */
6fc6879b
JM		 2038}
2039
2040
2041static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
8d2a9921 2042 int preauth, int remediation)
6fc6879b
JM		 2043{
2044 struct hostapd_data *hapd = ctx;
2045 struct sta_info *sta = sta_ctx;
2046 if (preauth)
2047 rsn_preauth_finished(hapd, sta, success);
2048 else
8d2a9921 2049 ieee802_1x_finished(hapd, sta, success, remediation);
6fc6879b
JM		 2050}
2051
2052
2053static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
2054 size_t identity_len, int phase2,
2055 struct eap_user *user)
2056{
2057 struct hostapd_data *hapd = ctx;
2058 const struct hostapd_eap_user *eap_user;
e9447a94 2059 int i;
fc48d33b 2060 int rv = -1;
6fc6879b 2061
ee431d77 2062 eap_user = hostapd_get_eap_user(hapd, identity, identity_len, phase2);
6fc6879b 2063 if (eap_user == NULL)
fc48d33b 2064 goto out;
6fc6879b
JM		 2065
2066 os_memset(user, 0, sizeof(*user));
2067 user->phase2 = phase2;
e9447a94 2068 for (i = 0; i < EAP_MAX_METHODS; i++) {
6fc6879b
JM		 2069 user->methods[i].vendor = eap_user->methods[i].vendor;
2070 user->methods[i].method = eap_user->methods[i].method;
2071 }
2072
2073 if (eap_user->password) {
a1f11e34
JB		 2074 user->password = os_memdup(eap_user->password,
2075 eap_user->password_len);
6fc6879b 2076 if (user->password == NULL)
fc48d33b 2077 goto out;
6fc6879b 2078 user->password_len = eap_user->password_len;
5dd80dd6 2079 user->password_hash = eap_user->password_hash;
6fc6879b
JM		 2080 }
2081 user->force_version = eap_user->force_version;
8943cc99 2082 user->macacl = eap_user->macacl;
6fc6879b 2083 user->ttls_auth = eap_user->ttls_auth;
8d2a9921 2084 user->remediation = eap_user->remediation;
fc48d33b 2085 rv = 0;
6fc6879b 2086
fc48d33b
BG		 2087out:
2088 if (rv)
2089 wpa_printf(MSG_DEBUG, "%s: Failed to find user", __func__);
2090
2091 return rv;
6fc6879b
JM		 2092}
2093
2094
2095static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
2096{
2097 struct hostapd_data *hapd = ctx;
2098 struct sta_info *sta;
2099 sta = ap_get_sta(hapd, addr);
2100 if (sta == NULL || sta->eapol_sm == NULL)
2101 return 0;
2102 return 1;
2103}
2104
2105
2106static void ieee802_1x_logger(void *ctx, const u8 *addr,
2107 eapol_logger_level level, const char *txt)
2108{
71f04b3c 2109#ifndef CONFIG_NO_HOSTAPD_LOGGER
6fc6879b
JM		 2110 struct hostapd_data *hapd = ctx;
2111 int hlevel;
2112
2113 switch (level) {
2114 case EAPOL_LOGGER_WARNING:
2115 hlevel = HOSTAPD_LEVEL_WARNING;
2116 break;
2117 case EAPOL_LOGGER_INFO:
2118 hlevel = HOSTAPD_LEVEL_INFO;
2119 break;
2120 case EAPOL_LOGGER_DEBUG:
2121 default:
2122 hlevel = HOSTAPD_LEVEL_DEBUG;
2123 break;
2124 }
2125
2126 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
2127 txt);
71f04b3c 2128#endif /* CONFIG_NO_HOSTAPD_LOGGER */
6fc6879b
JM		 2129}
2130
2131
2132static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
2133 int authorized)
2134{
2135 struct hostapd_data *hapd = ctx;
2136 struct sta_info *sta = sta_ctx;
2137 ieee802_1x_set_sta_authorized(hapd, sta, authorized);
2138}
2139
2140
2141static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
2142{
2143 struct hostapd_data *hapd = ctx;
2144 struct sta_info *sta = sta_ctx;
2145 ieee802_1x_abort_auth(hapd, sta);
2146}
2147
2148
2149static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
2150{
e03e56c3 2151#ifndef CONFIG_FIPS
7cb53ded 2152#ifndef CONFIG_NO_RC4
6fc6879b
JM		 2153 struct hostapd_data *hapd = ctx;
2154 struct sta_info *sta = sta_ctx;
2155 ieee802_1x_tx_key(hapd, sta);
7cb53ded 2156#endif /* CONFIG_NO_RC4 */
e03e56c3 2157#endif /* CONFIG_FIPS */
6fc6879b
JM		 2158}
2159
2160
38294200
JM		 2161static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
2162 enum eapol_event type)
2163{
2164 /* struct hostapd_data *hapd = ctx; */
2165 struct sta_info *sta = sta_ctx;
2166 switch (type) {
2167 case EAPOL_AUTH_SM_CHANGE:
2168 wpa_auth_sm_notify(sta->wpa_sm);
2169 break;
2170 case EAPOL_AUTH_REAUTHENTICATE:
2171 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
2172 break;
2173 }
2174}
2175
2176
d3bddd8b
JM		 2177#ifdef CONFIG_ERP
2178
2179static struct eap_server_erp_key *
2180ieee802_1x_erp_get_key(void *ctx, const char *keyname)
2181{
2182 struct hostapd_data *hapd = ctx;
2183 struct eap_server_erp_key *erp;
2184
2185 dl_list_for_each(erp, &hapd->erp_keys, struct eap_server_erp_key,
2186 list) {
2187 if (os_strcmp(erp->keyname_nai, keyname) == 0)
2188 return erp;
2189 }
2190
2191 return NULL;
2192}
2193
2194
2195static int ieee802_1x_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
2196{
2197 struct hostapd_data *hapd = ctx;
2198
2199 dl_list_add(&hapd->erp_keys, &erp->list);
2200 return 0;
2201}
2202
2203#endif /* CONFIG_ERP */
2204
2205
6fc6879b
JM		 2206int ieee802_1x_init(struct hostapd_data *hapd)
2207{
2208 int i;
2209 struct eapol_auth_config conf;
2210 struct eapol_auth_cb cb;
2211
d3bddd8b
JM		 2212 dl_list_init(&hapd->erp_keys);
2213
6fc6879b 2214 os_memset(&conf, 0, sizeof(conf));
a2befd37 2215 conf.ctx = hapd;
6fc6879b
JM		 2216 conf.eap_reauth_period = hapd->conf->eap_reauth_period;
2217 conf.wpa = hapd->conf->wpa;
2218 conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
2219 conf.eap_server = hapd->conf->eap_server;
2220 conf.ssl_ctx = hapd->ssl_ctx;
bb437f28 2221 conf.msg_ctx = hapd->msg_ctx;
6fc6879b
JM		 2222 conf.eap_sim_db_priv = hapd->eap_sim_db_priv;
2223 conf.eap_req_id_text = hapd->conf->eap_req_id_text;
2224 conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
2a5156a6
JM		 2225 conf.erp_send_reauth_start = hapd->conf->erp_send_reauth_start;
2226 conf.erp_domain = hapd->conf->erp_domain;
d3bddd8b 2227 conf.erp = hapd->conf->eap_server_erp;
681e199d 2228 conf.tls_session_lifetime = hapd->conf->tls_session_lifetime;
6fc6879b
JM		 2229 conf.pac_opaque_encr_key = hapd->conf->pac_opaque_encr_key;
2230 conf.eap_fast_a_id = hapd->conf->eap_fast_a_id;
2d867244
JM		 2231 conf.eap_fast_a_id_len = hapd->conf->eap_fast_a_id_len;
2232 conf.eap_fast_a_id_info = hapd->conf->eap_fast_a_id_info;
378eae5e 2233 conf.eap_fast_prov = hapd->conf->eap_fast_prov;
a11c90a6
JM		 2234 conf.pac_key_lifetime = hapd->conf->pac_key_lifetime;
2235 conf.pac_key_refresh_time = hapd->conf->pac_key_refresh_time;
6fc6879b 2236 conf.eap_sim_aka_result_ind = hapd->conf->eap_sim_aka_result_ind;
c3e258ae 2237 conf.tnc = hapd->conf->tnc;
ad08c363 2238 conf.wps = hapd->wps;
7f6ec672 2239 conf.fragment_size = hapd->conf->fragment_size;
df684d82 2240 conf.pwd_group = hapd->conf->pwd_group;
fa516558 2241 conf.pbc_in_m1 = hapd->conf->pbc_in_m1;
67fe933d
JM		 2242 if (hapd->conf->server_id) {
2243 conf.server_id = (const u8 *) hapd->conf->server_id;
2244 conf.server_id_len = os_strlen(hapd->conf->server_id);
2245 } else {
2246 conf.server_id = (const u8 *) "hostapd";
2247 conf.server_id_len = 7;
2248 }
6fc6879b
JM		 2249
2250 os_memset(&cb, 0, sizeof(cb));
2251 cb.eapol_send = ieee802_1x_eapol_send;
2252 cb.aaa_send = ieee802_1x_aaa_send;
2253 cb.finished = _ieee802_1x_finished;
2254 cb.get_eap_user = ieee802_1x_get_eap_user;
2255 cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
2256 cb.logger = ieee802_1x_logger;
2257 cb.set_port_authorized = ieee802_1x_set_port_authorized;
2258 cb.abort_auth = _ieee802_1x_abort_auth;
2259 cb.tx_key = _ieee802_1x_tx_key;
38294200 2260 cb.eapol_event = ieee802_1x_eapol_event;
d3bddd8b
JM		 2261#ifdef CONFIG_ERP
2262 cb.erp_get_key = ieee802_1x_erp_get_key;
2263 cb.erp_add_key = ieee802_1x_erp_add_key;
2264#endif /* CONFIG_ERP */
6fc6879b
JM		 2265
2266 hapd->eapol_auth = eapol_auth_init(&conf, &cb);
2267 if (hapd->eapol_auth == NULL)
2268 return -1;
2269
2270 if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
0e8a96a9 2271 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
6fc6879b
JM		 2272 return -1;
2273
f88bd288 2274#ifndef CONFIG_NO_RADIUS
6fc6879b
JM		 2275 if (radius_client_register(hapd->radius, RADIUS_AUTH,
2276 ieee802_1x_receive_auth, hapd))
2277 return -1;
f88bd288 2278#endif /* CONFIG_NO_RADIUS */
6fc6879b
JM		 2279
2280 if (hapd->conf->default_wep_key_len) {
6fc6879b 2281 for (i = 0; i < 4; i++)
3acdf771
JM		 2282 hostapd_drv_set_key(hapd->conf->iface, hapd,
2283 WPA_ALG_NONE, NULL, i, 0, NULL, 0,
2284 NULL, 0);
6fc6879b
JM		 2285
2286 ieee802_1x_rekey(hapd, NULL);
2287
f55802e8 2288 if (hapd->eapol_auth->default_wep_key == NULL)
6fc6879b
JM		 2289 return -1;
2290 }
2291
2292 return 0;
2293}
2294
2295
2c6411ed 2296void ieee802_1x_erp_flush(struct hostapd_data *hapd)
6fc6879b 2297{
d3bddd8b
JM		 2298 struct eap_server_erp_key *erp;
2299
2c6411ed
JM		 2300 while ((erp = dl_list_first(&hapd->erp_keys, struct eap_server_erp_key,
2301 list)) != NULL) {
2302 dl_list_del(&erp->list);
2303 bin_clear_free(erp, sizeof(*erp));
2304 }
2305}
2306
2307
2308void ieee802_1x_deinit(struct hostapd_data *hapd)
2309{
6fc6879b
JM		 2310 eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
2311
1b822f52 2312 if (hapd->driver && hapd->drv_priv &&
6fc6879b 2313 (hapd->conf->ieee802_1x || hapd->conf->wpa))
0e8a96a9 2314 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
6fc6879b
JM		 2315
2316 eapol_auth_deinit(hapd->eapol_auth);
2317 hapd->eapol_auth = NULL;
d3bddd8b 2318
2c6411ed 2319 ieee802_1x_erp_flush(hapd);
6fc6879b
JM		 2320}
2321
2322
6fc6879b 2323int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
8607f4c3 2324 const u8 *buf, size_t len, int ack)
6fc6879b
JM		 2325{
2326 struct ieee80211_hdr *hdr;
6fc6879b
JM		 2327 u8 *pos;
2328 const unsigned char rfc1042_hdr[ETH_ALEN] =
2329 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
2330
2331 if (sta == NULL)
2332 return -1;
dd840f79 2333 if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2)
6fc6879b
JM		 2334 return 0;
2335
2336 hdr = (struct ieee80211_hdr *) buf;
2337 pos = (u8 *) (hdr + 1);
2338 if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
2339 return 0;
2340 pos += sizeof(rfc1042_hdr);
2341 if (WPA_GET_BE16(pos) != ETH_P_PAE)
2342 return 0;
2343 pos += 2;
2344
dd840f79
JB		 2345 return ieee802_1x_eapol_tx_status(hapd, sta, pos, buf + len - pos,
2346 ack);
2347}
2348
2349
2350int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2351 const u8 *buf, int len, int ack)
2352{
2353 const struct ieee802_1x_hdr *xhdr =
2354 (const struct ieee802_1x_hdr *) buf;
2355 const u8 *pos = buf + sizeof(*xhdr);
2356 struct ieee802_1x_eapol_key *key;
6fc6879b 2357
dd840f79
JB		 2358 if (len < (int) sizeof(*xhdr))
2359 return 0;
6fc6879b
JM		 2360 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR " TX status - version=%d "
2361 "type=%d length=%d - ack=%d",
2362 MAC2STR(sta->addr), xhdr->version, xhdr->type,
2363 be_to_host16(xhdr->length), ack);
2364
0f5eb69f
JM		 2365#ifdef CONFIG_WPS
2366 if (xhdr->type == IEEE802_1X_TYPE_EAP_PACKET && ack &&
2367 (sta->flags & WLAN_STA_WPS) &&
2368 ap_sta_pending_delayed_1x_auth_fail_disconnect(hapd, sta)) {
2369 wpa_printf(MSG_DEBUG,
2370 "WPS: Indicate EAP completion on ACK for EAP-Failure");
2371 hostapd_wps_eap_completed(hapd);
2372 }
2373#endif /* CONFIG_WPS */
2374
dd840f79
JB		 2375 if (xhdr->type != IEEE802_1X_TYPE_EAPOL_KEY)
2376 return 0;
2377
2378 if (pos + sizeof(struct wpa_eapol_key) <= buf + len) {
e4bf4db9
JM		 2379 const struct wpa_eapol_key *wpa;
2380 wpa = (const struct wpa_eapol_key *) pos;
2381 if (wpa->type == EAPOL_KEY_TYPE_RSN ||
2382 wpa->type == EAPOL_KEY_TYPE_WPA)
2383 wpa_auth_eapol_key_tx_status(hapd->wpa_auth,
2384 sta->wpa_sm, ack);
2385 }
2386
6fc6879b
JM		 2387 /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
2388 * or Authenticator state machines, but EAPOL-Key packets are not
f935bd4d 2389 * retransmitted in case of failure. Try to re-send failed EAPOL-Key
6fc6879b
JM		 2390 * packets couple of times because otherwise STA keys become
2391 * unsynchronized with AP. */
dd840f79 2392 if (!ack && pos + sizeof(*key) <= buf + len) {
6fc6879b
JM		 2393 key = (struct ieee802_1x_eapol_key *) pos;
2394 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
2395 HOSTAPD_LEVEL_DEBUG, "did not Ack EAPOL-Key "
2396 "frame (%scast index=%d)",
2397 key->key_index & BIT(7) ? "uni" : "broad",
2398 key->key_index & ~BIT(7));
2399 /* TODO: re-send EAPOL-Key couple of times (with short delay
2400 * between them?). If all attempt fail, report error and
2401 * deauthenticate STA so that it will get new keys when
2402 * authenticating again (e.g., after returning in range).
2403 * Separate limit/transmit state needed both for unicast and
2404 * broadcast keys(?) */
2405 }
2406 /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
2407 * to here and change the key only if the EAPOL-Key packet was Acked.
2408 */
2409
2410 return 1;
2411}
2412
2413
2414u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
2415{
2416 if (sm == NULL || sm->identity == NULL)
2417 return NULL;
2418
2419 *len = sm->identity_len;
2420 return sm->identity;
2421}
2422
2423
2424u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
2425 int idx)
2426{
2427 if (sm == NULL || sm->radius_class.attr == NULL ||
2428 idx >= (int) sm->radius_class.count)
2429 return NULL;
2430
2431 *len = sm->radius_class.attr[idx].len;
2432 return sm->radius_class.attr[idx].data;
2433}
2434
2435
4e132a61
JM		 2436struct wpabuf * ieee802_1x_get_radius_cui(struct eapol_state_machine *sm)
2437{
2438 if (sm == NULL)
2439 return NULL;
2440 return sm->radius_cui;
2441}
2442
2443
6fc6879b
JM		 2444const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
2445{
55e632df 2446 *len = 0;
6fc6879b
JM		 2447 if (sm == NULL)
2448 return NULL;
2449
2450 *len = sm->eap_if->eapKeyDataLen;
2451 return sm->eap_if->eapKeyData;
2452}
2453
2454
2455void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
2456 int enabled)
2457{
2458 if (sm == NULL)
2459 return;
2460 sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
2461 eapol_auth_step(sm);
2462}
2463
2464
2465void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
2466 int valid)
2467{
2468 if (sm == NULL)
2469 return;
2470 sm->portValid = valid ? TRUE : FALSE;
2471 eapol_auth_step(sm);
2472}
2473
2474
2475void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
2476{
2477 if (sm == NULL)
2478 return;
2479 if (pre_auth)
2480 sm->flags |= EAPOL_SM_PREAUTH;
2481 else
2482 sm->flags &= ~EAPOL_SM_PREAUTH;
2483}
2484
2485
a6da824b 2486static const char * bool_txt(Boolean val)
6fc6879b 2487{
a6da824b 2488 return val ? "TRUE" : "FALSE";
6fc6879b
JM		 2489}
2490
2491
2492int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2493{
2494 /* TODO */
2495 return 0;
2496}
2497
2498
2499int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2500 char *buf, size_t buflen)
2501{
2502 int len = 0, ret;
2503 struct eapol_state_machine *sm = sta->eapol_sm;
0fc545ae 2504 struct os_reltime diff;
6ceb95c9
EL		 2505 const char *name1;
2506 const char *name2;
6fc6879b
JM		 2507
2508 if (sm == NULL)
2509 return 0;
2510
2511 ret = os_snprintf(buf + len, buflen - len,
2512 "dot1xPaePortNumber=%d\n"
2513 "dot1xPaePortProtocolVersion=%d\n"
2514 "dot1xPaePortCapabilities=1\n"
2515 "dot1xPaePortInitialize=%d\n"
2516 "dot1xPaePortReauthenticate=FALSE\n",
2517 sta->aid,
2518 EAPOL_VERSION,
2519 sm->initialize);
d85e1fc8 2520 if (os_snprintf_error(buflen - len, ret))
6fc6879b
JM		 2521 return len;
2522 len += ret;
2523
2524 /* dot1xAuthConfigTable */
2525 ret = os_snprintf(buf + len, buflen - len,
2526 "dot1xAuthPaeState=%d\n"
2527 "dot1xAuthBackendAuthState=%d\n"
2528 "dot1xAuthAdminControlledDirections=%d\n"
2529 "dot1xAuthOperControlledDirections=%d\n"
2530 "dot1xAuthAuthControlledPortStatus=%d\n"
2531 "dot1xAuthAuthControlledPortControl=%d\n"
2532 "dot1xAuthQuietPeriod=%u\n"
2533 "dot1xAuthServerTimeout=%u\n"
2534 "dot1xAuthReAuthPeriod=%u\n"
2535 "dot1xAuthReAuthEnabled=%s\n"
2536 "dot1xAuthKeyTxEnabled=%s\n",
2537 sm->auth_pae_state + 1,
2538 sm->be_auth_state + 1,
2539 sm->adminControlledDirections,
2540 sm->operControlledDirections,
2541 sm->authPortStatus,
2542 sm->portControl,
2543 sm->quietPeriod,
2544 sm->serverTimeout,
2545 sm->reAuthPeriod,
2546 bool_txt(sm->reAuthEnabled),
2547 bool_txt(sm->keyTxEnabled));
d85e1fc8 2548 if (os_snprintf_error(buflen - len, ret))
6fc6879b
JM		 2549 return len;
2550 len += ret;
2551
2552 /* dot1xAuthStatsTable */
2553 ret = os_snprintf(buf + len, buflen - len,
2554 "dot1xAuthEapolFramesRx=%u\n"
2555 "dot1xAuthEapolFramesTx=%u\n"
2556 "dot1xAuthEapolStartFramesRx=%u\n"
2557 "dot1xAuthEapolLogoffFramesRx=%u\n"
2558 "dot1xAuthEapolRespIdFramesRx=%u\n"
2559 "dot1xAuthEapolRespFramesRx=%u\n"
2560 "dot1xAuthEapolReqIdFramesTx=%u\n"
2561 "dot1xAuthEapolReqFramesTx=%u\n"
2562 "dot1xAuthInvalidEapolFramesRx=%u\n"
2563 "dot1xAuthEapLengthErrorFramesRx=%u\n"
2564 "dot1xAuthLastEapolFrameVersion=%u\n"
2565 "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
2566 sm->dot1xAuthEapolFramesRx,
2567 sm->dot1xAuthEapolFramesTx,
2568 sm->dot1xAuthEapolStartFramesRx,
2569 sm->dot1xAuthEapolLogoffFramesRx,
2570 sm->dot1xAuthEapolRespIdFramesRx,
2571 sm->dot1xAuthEapolRespFramesRx,
2572 sm->dot1xAuthEapolReqIdFramesTx,
2573 sm->dot1xAuthEapolReqFramesTx,
2574 sm->dot1xAuthInvalidEapolFramesRx,
2575 sm->dot1xAuthEapLengthErrorFramesRx,
2576 sm->dot1xAuthLastEapolFrameVersion,
2577 MAC2STR(sm->addr));
d85e1fc8 2578 if (os_snprintf_error(buflen - len, ret))
6fc6879b
JM		 2579 return len;
2580 len += ret;
2581
2582 /* dot1xAuthDiagTable */
2583 ret = os_snprintf(buf + len, buflen - len,
2584 "dot1xAuthEntersConnecting=%u\n"
2585 "dot1xAuthEapLogoffsWhileConnecting=%u\n"
2586 "dot1xAuthEntersAuthenticating=%u\n"
2587 "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
2588 "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
2589 "dot1xAuthAuthFailWhileAuthenticating=%u\n"
2590 "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
2591 "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
2592 "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
2593 "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
2594 "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
2595 "dot1xAuthBackendResponses=%u\n"
2596 "dot1xAuthBackendAccessChallenges=%u\n"
2597 "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
2598 "dot1xAuthBackendAuthSuccesses=%u\n"
2599 "dot1xAuthBackendAuthFails=%u\n",
2600 sm->authEntersConnecting,
2601 sm->authEapLogoffsWhileConnecting,
2602 sm->authEntersAuthenticating,
2603 sm->authAuthSuccessesWhileAuthenticating,
2604 sm->authAuthTimeoutsWhileAuthenticating,
2605 sm->authAuthFailWhileAuthenticating,
2606 sm->authAuthEapStartsWhileAuthenticating,
2607 sm->authAuthEapLogoffWhileAuthenticating,
2608 sm->authAuthReauthsWhileAuthenticated,
2609 sm->authAuthEapStartsWhileAuthenticated,
2610 sm->authAuthEapLogoffWhileAuthenticated,
2611 sm->backendResponses,
2612 sm->backendAccessChallenges,
2613 sm->backendOtherRequestsToSupplicant,
2614 sm->backendAuthSuccesses,
2615 sm->backendAuthFails);
d85e1fc8 2616 if (os_snprintf_error(buflen - len, ret))
6fc6879b
JM		 2617 return len;
2618 len += ret;
2619
2620 /* dot1xAuthSessionStatsTable */
0fc545ae 2621 os_reltime_age(&sta->acct_session_start, &diff);
6fc6879b
JM		 2622 ret = os_snprintf(buf + len, buflen - len,
2623 /* TODO: dot1xAuthSessionOctetsRx */
2624 /* TODO: dot1xAuthSessionOctetsTx */
2625 /* TODO: dot1xAuthSessionFramesRx */
2626 /* TODO: dot1xAuthSessionFramesTx */
1492fbb9 2627 "dot1xAuthSessionId=%016llX\n"
6fc6879b
JM		 2628 "dot1xAuthSessionAuthenticMethod=%d\n"
2629 "dot1xAuthSessionTime=%u\n"
2630 "dot1xAuthSessionTerminateCause=999\n"
2631 "dot1xAuthSessionUserName=%s\n",
1492fbb9 2632 (unsigned long long) sta->acct_session_id,
56586197
JM		 2633 (wpa_key_mgmt_wpa_ieee8021x(
2634 wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
2635 1 : 2,
0fc545ae 2636 (unsigned int) diff.sec,
6fc6879b 2637 sm->identity);
d85e1fc8 2638 if (os_snprintf_error(buflen - len, ret))
6fc6879b
JM		 2639 return len;
2640 len += ret;
2641
d72a0053 2642 if (sm->acct_multi_session_id) {
b52c0d45 2643 ret = os_snprintf(buf + len, buflen - len,
1492fbb9
NL		 2644 "authMultiSessionId=%016llX\n",
2645 (unsigned long long)
d72a0053 2646 sm->acct_multi_session_id);
b52c0d45
JM		 2647 if (os_snprintf_error(buflen - len, ret))
2648 return len;
2649 len += ret;
2650 }
2651
6ceb95c9
EL		 2652 name1 = eap_server_get_name(0, sm->eap_type_authsrv);
2653 name2 = eap_server_get_name(0, sm->eap_type_supp);
f538be3e
JM		 2654 ret = os_snprintf(buf + len, buflen - len,
2655 "last_eap_type_as=%d (%s)\n"
2656 "last_eap_type_sta=%d (%s)\n",
414f23d8
EL		 2657 sm->eap_type_authsrv, name1,
2658 sm->eap_type_supp, name2);
d85e1fc8 2659 if (os_snprintf_error(buflen - len, ret))
f538be3e
JM		 2660 return len;
2661 len += ret;
2662
6fc6879b
JM		 2663 return len;
2664}
2665
2666
d7c3347f
JM		 2667#ifdef CONFIG_HS20
2668static void ieee802_1x_wnm_notif_send(void *eloop_ctx, void *timeout_ctx)
2669{
2670 struct hostapd_data *hapd = eloop_ctx;
2671 struct sta_info *sta = timeout_ctx;
2672
2673 if (sta->remediation) {
2674 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2675 MACSTR " to indicate Subscription Remediation",
2676 MAC2STR(sta->addr));
2677 hs20_send_wnm_notification(hapd, sta->addr,
2678 sta->remediation_method,
2679 sta->remediation_url);
2680 os_free(sta->remediation_url);
2681 sta->remediation_url = NULL;
2682 }
2683
2684 if (sta->hs20_deauth_req) {
2685 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification to "
2686 MACSTR " to indicate imminent deauthentication",
2687 MAC2STR(sta->addr));
2688 hs20_send_wnm_notification_deauth_req(hapd, sta->addr,
2689 sta->hs20_deauth_req);
2690 }
2691}
2692#endif /* CONFIG_HS20 */
2693
2694
6fc6879b 2695static void ieee802_1x_finished(struct hostapd_data *hapd,
8d2a9921
JM		 2696 struct sta_info *sta, int success,
2697 int remediation)
6fc6879b
JM		 2698{
2699 const u8 *key;
2700 size_t len;
2701 /* TODO: get PMKLifetime from WPA parameters */
2702 static const int dot11RSNAConfigPMKLifetime = 43200;
47ea24c1 2703 unsigned int session_timeout;
6fc6879b 2704
6ca0853d 2705#ifdef CONFIG_HS20
8d2a9921
JM		 2706 if (remediation && !sta->remediation) {
2707 sta->remediation = 1;
2708 os_free(sta->remediation_url);
2709 sta->remediation_url =
2710 os_strdup(hapd->conf->subscr_remediation_url);
2711 sta->remediation_method = 1; /* SOAP-XML SPP */
2712 }
2713
d7c3347f
JM		 2714 if (success && (sta->remediation || sta->hs20_deauth_req)) {
2715 wpa_printf(MSG_DEBUG, "HS 2.0: Schedule WNM-Notification to "
2716 MACSTR " in 100 ms", MAC2STR(sta->addr));
2717 eloop_cancel_timeout(ieee802_1x_wnm_notif_send, hapd, sta);
2718 eloop_register_timeout(0, 100000, ieee802_1x_wnm_notif_send,
2719 hapd, sta);
6ca0853d
JM		 2720 }
2721#endif /* CONFIG_HS20 */
2722
6fc6879b 2723 key = ieee802_1x_get_key(sta->eapol_sm, &len);
47ea24c1
JM		 2724 if (sta->session_timeout_set)
2725 session_timeout = sta->session_timeout;
2726 else
2727 session_timeout = dot11RSNAConfigPMKLifetime;
6ca0853d 2728 if (success && key && len >= PMK_LEN && !sta->remediation &&
8e1146d9 2729 !sta->hs20_deauth_requested &&
207976f0 2730 wpa_auth_pmksa_add(sta->wpa_sm, key, len, session_timeout,
6fc6879b
JM		 2731 sta->eapol_sm) == 0) {
2732 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
2733 HOSTAPD_LEVEL_DEBUG,
2734 "Added PMKSA cache entry (IEEE 802.1X)");
2735 }
32397063 2736
fd8e4fda 2737 if (!success) {
32397063
JM		 2738 /*
2739 * Many devices require deauthentication after WPS provisioning
2740 * and some may not be be able to do that themselves, so
fd8e4fda
JM		 2741 * disconnect the client here. In addition, this may also
2742 * benefit IEEE 802.1X/EAPOL authentication cases, too since
2743 * the EAPOL PAE state machine would remain in HELD state for
2744 * considerable amount of time and some EAP methods, like
2745 * EAP-FAST with anonymous provisioning, may require another
2746 * EAPOL authentication to be started to complete connection.
32397063 2747 */
0f5eb69f 2748 ap_sta_delayed_1x_auth_fail_disconnect(hapd, sta);
32397063 2749 }
6fc6879b 2750}
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