blob: ef2683456f1858a2c5e3e7ab7b6f4e492fbf45b9 [file] [log] [blame]
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001/*
2 * hostapd / IEEE 802.1X-2004 Authenticator
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08003 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07004 *
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08005 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07007 */
8
9#include "utils/includes.h"
10
11#include "utils/common.h"
12#include "utils/eloop.h"
13#include "crypto/md5.h"
14#include "crypto/crypto.h"
15#include "crypto/random.h"
16#include "common/ieee802_11_defs.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070017#include "radius/radius.h"
18#include "radius/radius_client.h"
19#include "eap_server/eap.h"
20#include "eap_common/eap_wsc_common.h"
21#include "eapol_auth/eapol_auth_sm.h"
22#include "eapol_auth/eapol_auth_sm_i.h"
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -080023#include "p2p/p2p.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070024#include "hostapd.h"
25#include "accounting.h"
26#include "sta_info.h"
27#include "wpa_auth.h"
28#include "preauth_auth.h"
29#include "pmksa_cache_auth.h"
30#include "ap_config.h"
31#include "ap_drv_ops.h"
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -080032#include "wps_hostapd.h"
Dmitry Shmidtf21452a2014-02-26 10:55:25 -080033#include "hs20.h"
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070034#include "ieee802_1x.h"
35
36
37static void ieee802_1x_finished(struct hostapd_data *hapd,
Dmitry Shmidtf21452a2014-02-26 10:55:25 -080038 struct sta_info *sta, int success,
39 int remediation);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070040
41
42static 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 int encrypt = 0;
49
50 len = sizeof(*xhdr) + datalen;
51 buf = os_zalloc(len);
52 if (buf == NULL) {
53 wpa_printf(MSG_ERROR, "malloc() failed for "
54 "ieee802_1x_send(len=%lu)",
55 (unsigned long) len);
56 return;
57 }
58
59 xhdr = (struct ieee802_1x_hdr *) buf;
60 xhdr->version = hapd->conf->eapol_version;
61 xhdr->type = type;
62 xhdr->length = host_to_be16(datalen);
63
64 if (datalen > 0 && data != NULL)
65 os_memcpy(xhdr + 1, data, datalen);
66
67 if (wpa_auth_pairwise_set(sta->wpa_sm))
68 encrypt = 1;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -080069#ifdef CONFIG_TESTING_OPTIONS
70 if (hapd->ext_eapol_frame_io) {
71 size_t hex_len = 2 * len + 1;
72 char *hex = os_malloc(hex_len);
73
74 if (hex) {
75 wpa_snprintf_hex(hex, hex_len, buf, len);
76 wpa_msg(hapd->msg_ctx, MSG_INFO,
77 "EAPOL-TX " MACSTR " %s",
78 MAC2STR(sta->addr), hex);
79 os_free(hex);
80 }
81 } else
82#endif /* CONFIG_TESTING_OPTIONS */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070083 if (sta->flags & WLAN_STA_PREAUTH) {
84 rsn_preauth_send(hapd, sta, buf, len);
85 } else {
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -080086 hostapd_drv_hapd_send_eapol(
87 hapd, sta->addr, buf, len,
88 encrypt, hostapd_sta_flags_to_drv(sta->flags));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -070089 }
90
91 os_free(buf);
92}
93
94
95void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
96 struct sta_info *sta, int authorized)
97{
98 int res;
99
100 if (sta->flags & WLAN_STA_PREAUTH)
101 return;
102
103 if (authorized) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700104 ap_sta_set_authorized(hapd, sta, 1);
105 res = hostapd_set_authorized(hapd, sta, 1);
106 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
107 HOSTAPD_LEVEL_DEBUG, "authorizing port");
108 } else {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700109 ap_sta_set_authorized(hapd, sta, 0);
110 res = hostapd_set_authorized(hapd, sta, 0);
111 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
112 HOSTAPD_LEVEL_DEBUG, "unauthorizing port");
113 }
114
115 if (res && errno != ENOENT) {
Dmitry Shmidt96571392013-10-14 12:54:46 -0700116 wpa_printf(MSG_DEBUG, "Could not set station " MACSTR
117 " flags for kernel driver (errno=%d).",
118 MAC2STR(sta->addr), errno);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700119 }
120
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800121 if (authorized) {
Dmitry Shmidt04f534e2013-12-09 15:50:16 -0800122 os_get_reltime(&sta->connected_time);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700123 accounting_sta_start(hapd, sta);
Dmitry Shmidtd5e49232012-12-03 15:08:10 -0800124 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700125}
126
127
128static void ieee802_1x_tx_key_one(struct hostapd_data *hapd,
129 struct sta_info *sta,
130 int idx, int broadcast,
131 u8 *key_data, size_t key_len)
132{
133 u8 *buf, *ekey;
134 struct ieee802_1x_hdr *hdr;
135 struct ieee802_1x_eapol_key *key;
136 size_t len, ekey_len;
137 struct eapol_state_machine *sm = sta->eapol_sm;
138
139 if (sm == NULL)
140 return;
141
142 len = sizeof(*key) + key_len;
143 buf = os_zalloc(sizeof(*hdr) + len);
144 if (buf == NULL)
145 return;
146
147 hdr = (struct ieee802_1x_hdr *) buf;
148 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
149 key->type = EAPOL_KEY_TYPE_RC4;
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700150 WPA_PUT_BE16(key->key_length, key_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700151 wpa_get_ntp_timestamp(key->replay_counter);
152
153 if (random_get_bytes(key->key_iv, sizeof(key->key_iv))) {
154 wpa_printf(MSG_ERROR, "Could not get random numbers");
155 os_free(buf);
156 return;
157 }
158
159 key->key_index = idx | (broadcast ? 0 : BIT(7));
160 if (hapd->conf->eapol_key_index_workaround) {
161 /* According to some information, WinXP Supplicant seems to
162 * interpret bit7 as an indication whether the key is to be
163 * activated, so make it possible to enable workaround that
164 * sets this bit for all keys. */
165 key->key_index |= BIT(7);
166 }
167
168 /* Key is encrypted using "Key-IV + MSK[0..31]" as the RC4-key and
169 * MSK[32..63] is used to sign the message. */
170 if (sm->eap_if->eapKeyData == NULL || sm->eap_if->eapKeyDataLen < 64) {
171 wpa_printf(MSG_ERROR, "No eapKeyData available for encrypting "
172 "and signing EAPOL-Key");
173 os_free(buf);
174 return;
175 }
176 os_memcpy((u8 *) (key + 1), key_data, key_len);
177 ekey_len = sizeof(key->key_iv) + 32;
178 ekey = os_malloc(ekey_len);
179 if (ekey == NULL) {
180 wpa_printf(MSG_ERROR, "Could not encrypt key");
181 os_free(buf);
182 return;
183 }
184 os_memcpy(ekey, key->key_iv, sizeof(key->key_iv));
185 os_memcpy(ekey + sizeof(key->key_iv), sm->eap_if->eapKeyData, 32);
186 rc4_skip(ekey, ekey_len, 0, (u8 *) (key + 1), key_len);
187 os_free(ekey);
188
189 /* This header is needed here for HMAC-MD5, but it will be regenerated
190 * in ieee802_1x_send() */
191 hdr->version = hapd->conf->eapol_version;
192 hdr->type = IEEE802_1X_TYPE_EAPOL_KEY;
193 hdr->length = host_to_be16(len);
194 hmac_md5(sm->eap_if->eapKeyData + 32, 32, buf, sizeof(*hdr) + len,
195 key->key_signature);
196
197 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key to " MACSTR
198 " (%s index=%d)", MAC2STR(sm->addr),
199 broadcast ? "broadcast" : "unicast", idx);
200 ieee802_1x_send(hapd, sta, IEEE802_1X_TYPE_EAPOL_KEY, (u8 *) key, len);
201 if (sta->eapol_sm)
202 sta->eapol_sm->dot1xAuthEapolFramesTx++;
203 os_free(buf);
204}
205
206
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700207void ieee802_1x_tx_key(struct hostapd_data *hapd, struct sta_info *sta)
208{
209 struct eapol_authenticator *eapol = hapd->eapol_auth;
210 struct eapol_state_machine *sm = sta->eapol_sm;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700211
212 if (sm == NULL || !sm->eap_if->eapKeyData)
213 return;
214
215 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Sending EAPOL-Key(s) to " MACSTR,
216 MAC2STR(sta->addr));
217
218#ifndef CONFIG_NO_VLAN
Dmitry Shmidt5393a0f2013-08-08 11:23:34 -0700219 if (sta->vlan_id > 0 && sta->vlan_id <= MAX_VLAN_ID) {
220 wpa_printf(MSG_ERROR, "Using WEP with vlans is not supported.");
221 return;
222 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700223#endif /* CONFIG_NO_VLAN */
Dmitry Shmidt5393a0f2013-08-08 11:23:34 -0700224
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700225 if (eapol->default_wep_key) {
226 ieee802_1x_tx_key_one(hapd, sta, eapol->default_wep_key_idx, 1,
227 eapol->default_wep_key,
228 hapd->conf->default_wep_key_len);
229 }
230
231 if (hapd->conf->individual_wep_key_len > 0) {
232 u8 *ikey;
233 ikey = os_malloc(hapd->conf->individual_wep_key_len);
234 if (ikey == NULL ||
235 random_get_bytes(ikey, hapd->conf->individual_wep_key_len))
236 {
237 wpa_printf(MSG_ERROR, "Could not generate random "
238 "individual WEP key.");
239 os_free(ikey);
240 return;
241 }
242
243 wpa_hexdump_key(MSG_DEBUG, "Individual WEP key",
244 ikey, hapd->conf->individual_wep_key_len);
245
246 ieee802_1x_tx_key_one(hapd, sta, 0, 0, ikey,
247 hapd->conf->individual_wep_key_len);
248
249 /* TODO: set encryption in TX callback, i.e., only after STA
250 * has ACKed EAPOL-Key frame */
251 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
252 sta->addr, 0, 1, NULL, 0, ikey,
253 hapd->conf->individual_wep_key_len)) {
254 wpa_printf(MSG_ERROR, "Could not set individual WEP "
255 "encryption.");
256 }
257
258 os_free(ikey);
259 }
260}
261
262
263const char *radius_mode_txt(struct hostapd_data *hapd)
264{
265 switch (hapd->iface->conf->hw_mode) {
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800266 case HOSTAPD_MODE_IEEE80211AD:
267 return "802.11ad";
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700268 case HOSTAPD_MODE_IEEE80211A:
269 return "802.11a";
270 case HOSTAPD_MODE_IEEE80211G:
271 return "802.11g";
272 case HOSTAPD_MODE_IEEE80211B:
273 default:
274 return "802.11b";
275 }
276}
277
278
279int radius_sta_rate(struct hostapd_data *hapd, struct sta_info *sta)
280{
281 int i;
282 u8 rate = 0;
283
284 for (i = 0; i < sta->supported_rates_len; i++)
285 if ((sta->supported_rates[i] & 0x7f) > rate)
286 rate = sta->supported_rates[i] & 0x7f;
287
288 return rate;
289}
290
291
292#ifndef CONFIG_NO_RADIUS
293static void ieee802_1x_learn_identity(struct hostapd_data *hapd,
294 struct eapol_state_machine *sm,
295 const u8 *eap, size_t len)
296{
297 const u8 *identity;
298 size_t identity_len;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800299 const struct eap_hdr *hdr = (const struct eap_hdr *) eap;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700300
301 if (len <= sizeof(struct eap_hdr) ||
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800302 (hdr->code == EAP_CODE_RESPONSE &&
303 eap[sizeof(struct eap_hdr)] != EAP_TYPE_IDENTITY) ||
304 (hdr->code == EAP_CODE_INITIATE &&
305 eap[sizeof(struct eap_hdr)] != EAP_ERP_TYPE_REAUTH) ||
306 (hdr->code != EAP_CODE_RESPONSE &&
307 hdr->code != EAP_CODE_INITIATE))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700308 return;
309
310 identity = eap_get_identity(sm->eap, &identity_len);
311 if (identity == NULL)
312 return;
313
314 /* Save station identity for future RADIUS packets */
315 os_free(sm->identity);
Dmitry Shmidt4b060592013-04-29 16:42:49 -0700316 sm->identity = (u8 *) dup_binstr(identity, identity_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700317 if (sm->identity == NULL) {
318 sm->identity_len = 0;
319 return;
320 }
321
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700322 sm->identity_len = identity_len;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700323 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
324 HOSTAPD_LEVEL_DEBUG, "STA identity '%s'", sm->identity);
325 sm->dot1xAuthEapolRespIdFramesRx++;
326}
327
328
Dmitry Shmidt03658832014-08-13 11:03:49 -0700329static int add_common_radius_sta_attr_rsn(struct hostapd_data *hapd,
330 struct hostapd_radius_attr *req_attr,
331 struct sta_info *sta,
332 struct radius_msg *msg)
333{
334 u32 suite;
335 int ver, val;
336
337 ver = wpa_auth_sta_wpa_version(sta->wpa_sm);
338 val = wpa_auth_get_pairwise(sta->wpa_sm);
339 suite = wpa_cipher_to_suite(ver, val);
340 if (val != -1 &&
341 !hostapd_config_get_radius_attr(req_attr,
342 RADIUS_ATTR_WLAN_PAIRWISE_CIPHER) &&
343 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_PAIRWISE_CIPHER,
344 suite)) {
345 wpa_printf(MSG_ERROR, "Could not add WLAN-Pairwise-Cipher");
346 return -1;
347 }
348
349 suite = wpa_cipher_to_suite((hapd->conf->wpa & 0x2) ?
350 WPA_PROTO_RSN : WPA_PROTO_WPA,
351 hapd->conf->wpa_group);
352 if (!hostapd_config_get_radius_attr(req_attr,
353 RADIUS_ATTR_WLAN_GROUP_CIPHER) &&
354 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_GROUP_CIPHER,
355 suite)) {
356 wpa_printf(MSG_ERROR, "Could not add WLAN-Group-Cipher");
357 return -1;
358 }
359
360 val = wpa_auth_sta_key_mgmt(sta->wpa_sm);
361 suite = wpa_akm_to_suite(val);
362 if (val != -1 &&
363 !hostapd_config_get_radius_attr(req_attr,
364 RADIUS_ATTR_WLAN_AKM_SUITE) &&
365 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_WLAN_AKM_SUITE,
366 suite)) {
367 wpa_printf(MSG_ERROR, "Could not add WLAN-AKM-Suite");
368 return -1;
369 }
370
371#ifdef CONFIG_IEEE80211W
372 if (hapd->conf->ieee80211w != NO_MGMT_FRAME_PROTECTION) {
373 suite = wpa_cipher_to_suite(WPA_PROTO_RSN,
374 hapd->conf->group_mgmt_cipher);
375 if (!hostapd_config_get_radius_attr(
376 req_attr, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER) &&
377 !radius_msg_add_attr_int32(
378 msg, RADIUS_ATTR_WLAN_GROUP_MGMT_CIPHER, suite)) {
379 wpa_printf(MSG_ERROR,
380 "Could not add WLAN-Group-Mgmt-Cipher");
381 return -1;
382 }
383 }
384#endif /* CONFIG_IEEE80211W */
385
386 return 0;
387}
388
389
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700390static int add_common_radius_sta_attr(struct hostapd_data *hapd,
391 struct hostapd_radius_attr *req_attr,
392 struct sta_info *sta,
393 struct radius_msg *msg)
394{
395 char buf[128];
396
397 if (!hostapd_config_get_radius_attr(req_attr,
398 RADIUS_ATTR_NAS_PORT) &&
399 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT, sta->aid)) {
400 wpa_printf(MSG_ERROR, "Could not add NAS-Port");
401 return -1;
402 }
403
404 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
405 MAC2STR(sta->addr));
406 buf[sizeof(buf) - 1] = '\0';
407 if (!radius_msg_add_attr(msg, RADIUS_ATTR_CALLING_STATION_ID,
408 (u8 *) buf, os_strlen(buf))) {
409 wpa_printf(MSG_ERROR, "Could not add Calling-Station-Id");
410 return -1;
411 }
412
413 if (sta->flags & WLAN_STA_PREAUTH) {
414 os_strlcpy(buf, "IEEE 802.11i Pre-Authentication",
415 sizeof(buf));
416 } else {
417 os_snprintf(buf, sizeof(buf), "CONNECT %d%sMbps %s",
418 radius_sta_rate(hapd, sta) / 2,
419 (radius_sta_rate(hapd, sta) & 1) ? ".5" : "",
420 radius_mode_txt(hapd));
421 buf[sizeof(buf) - 1] = '\0';
422 }
423 if (!hostapd_config_get_radius_attr(req_attr,
424 RADIUS_ATTR_CONNECT_INFO) &&
425 !radius_msg_add_attr(msg, RADIUS_ATTR_CONNECT_INFO,
426 (u8 *) buf, os_strlen(buf))) {
427 wpa_printf(MSG_ERROR, "Could not add Connect-Info");
428 return -1;
429 }
430
Dmitry Shmidta54fa5f2013-01-15 13:53:35 -0800431 if (sta->acct_session_id_hi || sta->acct_session_id_lo) {
432 os_snprintf(buf, sizeof(buf), "%08X-%08X",
433 sta->acct_session_id_hi, sta->acct_session_id_lo);
434 if (!radius_msg_add_attr(msg, RADIUS_ATTR_ACCT_SESSION_ID,
435 (u8 *) buf, os_strlen(buf))) {
436 wpa_printf(MSG_ERROR, "Could not add Acct-Session-Id");
437 return -1;
438 }
439 }
440
Dmitry Shmidt03658832014-08-13 11:03:49 -0700441#ifdef CONFIG_IEEE80211R
442 if (hapd->conf->wpa && wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt) &&
443 sta->wpa_sm &&
444 (wpa_key_mgmt_ft(wpa_auth_sta_key_mgmt(sta->wpa_sm)) ||
445 sta->auth_alg == WLAN_AUTH_FT) &&
446 !hostapd_config_get_radius_attr(req_attr,
447 RADIUS_ATTR_MOBILITY_DOMAIN_ID) &&
448 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_MOBILITY_DOMAIN_ID,
449 WPA_GET_BE16(
450 hapd->conf->mobility_domain))) {
451 wpa_printf(MSG_ERROR, "Could not add Mobility-Domain-Id");
452 return -1;
453 }
454#endif /* CONFIG_IEEE80211R */
455
456 if (hapd->conf->wpa && sta->wpa_sm &&
457 add_common_radius_sta_attr_rsn(hapd, req_attr, sta, msg) < 0)
458 return -1;
459
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700460 return 0;
461}
462
463
464int add_common_radius_attr(struct hostapd_data *hapd,
465 struct hostapd_radius_attr *req_attr,
466 struct sta_info *sta,
467 struct radius_msg *msg)
468{
469 char buf[128];
470 struct hostapd_radius_attr *attr;
471
472 if (!hostapd_config_get_radius_attr(req_attr,
473 RADIUS_ATTR_NAS_IP_ADDRESS) &&
474 hapd->conf->own_ip_addr.af == AF_INET &&
475 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IP_ADDRESS,
476 (u8 *) &hapd->conf->own_ip_addr.u.v4, 4)) {
477 wpa_printf(MSG_ERROR, "Could not add NAS-IP-Address");
478 return -1;
479 }
480
481#ifdef CONFIG_IPV6
482 if (!hostapd_config_get_radius_attr(req_attr,
483 RADIUS_ATTR_NAS_IPV6_ADDRESS) &&
484 hapd->conf->own_ip_addr.af == AF_INET6 &&
485 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IPV6_ADDRESS,
486 (u8 *) &hapd->conf->own_ip_addr.u.v6, 16)) {
487 wpa_printf(MSG_ERROR, "Could not add NAS-IPv6-Address");
488 return -1;
489 }
490#endif /* CONFIG_IPV6 */
491
492 if (!hostapd_config_get_radius_attr(req_attr,
493 RADIUS_ATTR_NAS_IDENTIFIER) &&
494 hapd->conf->nas_identifier &&
495 !radius_msg_add_attr(msg, RADIUS_ATTR_NAS_IDENTIFIER,
496 (u8 *) hapd->conf->nas_identifier,
497 os_strlen(hapd->conf->nas_identifier))) {
498 wpa_printf(MSG_ERROR, "Could not add NAS-Identifier");
499 return -1;
500 }
501
502 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT ":%s",
503 MAC2STR(hapd->own_addr),
504 wpa_ssid_txt(hapd->conf->ssid.ssid,
505 hapd->conf->ssid.ssid_len));
506 buf[sizeof(buf) - 1] = '\0';
507 if (!hostapd_config_get_radius_attr(req_attr,
508 RADIUS_ATTR_CALLED_STATION_ID) &&
509 !radius_msg_add_attr(msg, RADIUS_ATTR_CALLED_STATION_ID,
510 (u8 *) buf, os_strlen(buf))) {
511 wpa_printf(MSG_ERROR, "Could not add Called-Station-Id");
512 return -1;
513 }
514
515 if (!hostapd_config_get_radius_attr(req_attr,
516 RADIUS_ATTR_NAS_PORT_TYPE) &&
517 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_NAS_PORT_TYPE,
518 RADIUS_NAS_PORT_TYPE_IEEE_802_11)) {
519 wpa_printf(MSG_ERROR, "Could not add NAS-Port-Type");
520 return -1;
521 }
522
Dmitry Shmidt03658832014-08-13 11:03:49 -0700523#ifdef CONFIG_INTERWORKING
524 if (hapd->conf->interworking &&
525 !is_zero_ether_addr(hapd->conf->hessid)) {
526 os_snprintf(buf, sizeof(buf), RADIUS_802_1X_ADDR_FORMAT,
527 MAC2STR(hapd->conf->hessid));
528 buf[sizeof(buf) - 1] = '\0';
529 if (!hostapd_config_get_radius_attr(req_attr,
530 RADIUS_ATTR_WLAN_HESSID) &&
531 !radius_msg_add_attr(msg, RADIUS_ATTR_WLAN_HESSID,
532 (u8 *) buf, os_strlen(buf))) {
533 wpa_printf(MSG_ERROR, "Could not add WLAN-HESSID");
534 return -1;
535 }
536 }
537#endif /* CONFIG_INTERWORKING */
538
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700539 if (sta && add_common_radius_sta_attr(hapd, req_attr, sta, msg) < 0)
540 return -1;
541
542 for (attr = req_attr; attr; attr = attr->next) {
543 if (!radius_msg_add_attr(msg, attr->type,
544 wpabuf_head(attr->val),
545 wpabuf_len(attr->val))) {
546 wpa_printf(MSG_ERROR, "Could not add RADIUS "
547 "attribute");
548 return -1;
549 }
550 }
551
552 return 0;
553}
554
555
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700556static void ieee802_1x_encapsulate_radius(struct hostapd_data *hapd,
557 struct sta_info *sta,
558 const u8 *eap, size_t len)
559{
560 struct radius_msg *msg;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700561 struct eapol_state_machine *sm = sta->eapol_sm;
562
563 if (sm == NULL)
564 return;
565
566 ieee802_1x_learn_identity(hapd, sm, eap, len);
567
568 wpa_printf(MSG_DEBUG, "Encapsulating EAP message into a RADIUS "
569 "packet");
570
571 sm->radius_identifier = radius_client_get_id(hapd->radius);
572 msg = radius_msg_new(RADIUS_CODE_ACCESS_REQUEST,
573 sm->radius_identifier);
574 if (msg == NULL) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800575 wpa_printf(MSG_INFO, "Could not create new RADIUS packet");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700576 return;
577 }
578
579 radius_msg_make_authenticator(msg, (u8 *) sta, sizeof(*sta));
580
581 if (sm->identity &&
582 !radius_msg_add_attr(msg, RADIUS_ATTR_USER_NAME,
583 sm->identity, sm->identity_len)) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800584 wpa_printf(MSG_INFO, "Could not add User-Name");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700585 goto fail;
586 }
587
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700588 if (add_common_radius_attr(hapd, hapd->conf->radius_auth_req_attr, sta,
589 msg) < 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700590 goto fail;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700591
592 /* TODO: should probably check MTU from driver config; 2304 is max for
593 * IEEE 802.11, but use 1400 to avoid problems with too large packets
594 */
Dmitry Shmidt04949592012-07-19 12:16:46 -0700595 if (!hostapd_config_get_radius_attr(hapd->conf->radius_auth_req_attr,
596 RADIUS_ATTR_FRAMED_MTU) &&
597 !radius_msg_add_attr_int32(msg, RADIUS_ATTR_FRAMED_MTU, 1400)) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800598 wpa_printf(MSG_INFO, "Could not add Framed-MTU");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700599 goto fail;
600 }
601
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700602 if (eap && !radius_msg_add_eap(msg, eap, len)) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800603 wpa_printf(MSG_INFO, "Could not add EAP-Message");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700604 goto fail;
605 }
606
607 /* State attribute must be copied if and only if this packet is
608 * Access-Request reply to the previous Access-Challenge */
609 if (sm->last_recv_radius &&
610 radius_msg_get_hdr(sm->last_recv_radius)->code ==
611 RADIUS_CODE_ACCESS_CHALLENGE) {
612 int res = radius_msg_copy_attr(msg, sm->last_recv_radius,
613 RADIUS_ATTR_STATE);
614 if (res < 0) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800615 wpa_printf(MSG_INFO, "Could not copy State attribute from previous Access-Challenge");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700616 goto fail;
617 }
618 if (res > 0) {
619 wpa_printf(MSG_DEBUG, "Copied RADIUS State Attribute");
620 }
621 }
622
Dmitry Shmidt04949592012-07-19 12:16:46 -0700623 if (hapd->conf->radius_request_cui) {
624 const u8 *cui;
625 size_t cui_len;
626 /* Add previously learned CUI or nul CUI to request CUI */
627 if (sm->radius_cui) {
628 cui = wpabuf_head(sm->radius_cui);
629 cui_len = wpabuf_len(sm->radius_cui);
630 } else {
631 cui = (const u8 *) "\0";
632 cui_len = 1;
633 }
634 if (!radius_msg_add_attr(msg,
635 RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
636 cui, cui_len)) {
637 wpa_printf(MSG_ERROR, "Could not add CUI");
638 goto fail;
639 }
640 }
641
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800642#ifdef CONFIG_HS20
643 if (hapd->conf->hs20) {
644 u8 ver = 1; /* Release 2 */
645 if (!radius_msg_add_wfa(
646 msg, RADIUS_VENDOR_ATTR_WFA_HS20_AP_VERSION,
647 &ver, 1)) {
648 wpa_printf(MSG_ERROR, "Could not add HS 2.0 AP "
649 "version");
650 goto fail;
651 }
652
653 if (sta->hs20_ie && wpabuf_len(sta->hs20_ie) > 0) {
654 const u8 *pos;
655 u8 buf[3];
656 u16 id;
657 pos = wpabuf_head_u8(sta->hs20_ie);
658 buf[0] = (*pos) >> 4;
659 if (((*pos) & HS20_PPS_MO_ID_PRESENT) &&
660 wpabuf_len(sta->hs20_ie) >= 3)
661 id = WPA_GET_LE16(pos + 1);
662 else
663 id = 0;
664 WPA_PUT_BE16(buf + 1, id);
665 if (!radius_msg_add_wfa(
666 msg,
667 RADIUS_VENDOR_ATTR_WFA_HS20_STA_VERSION,
668 buf, sizeof(buf))) {
669 wpa_printf(MSG_ERROR, "Could not add HS 2.0 "
670 "STA version");
671 goto fail;
672 }
673 }
674 }
675#endif /* CONFIG_HS20 */
676
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700677 if (radius_client_send(hapd->radius, msg, RADIUS_AUTH, sta->addr) < 0)
678 goto fail;
679
680 return;
681
682 fail:
683 radius_msg_free(msg);
684}
685#endif /* CONFIG_NO_RADIUS */
686
687
688static void handle_eap_response(struct hostapd_data *hapd,
689 struct sta_info *sta, struct eap_hdr *eap,
690 size_t len)
691{
692 u8 type, *data;
693 struct eapol_state_machine *sm = sta->eapol_sm;
694 if (sm == NULL)
695 return;
696
697 data = (u8 *) (eap + 1);
698
699 if (len < sizeof(*eap) + 1) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800700 wpa_printf(MSG_INFO, "handle_eap_response: too short response data");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700701 return;
702 }
703
704 sm->eap_type_supp = type = data[0];
705
706 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
707 HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
708 "id=%d len=%d) from STA: EAP Response-%s (%d)",
709 eap->code, eap->identifier, be_to_host16(eap->length),
710 eap_server_get_name(0, type), type);
711
712 sm->dot1xAuthEapolRespFramesRx++;
713
714 wpabuf_free(sm->eap_if->eapRespData);
715 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
716 sm->eapolEap = TRUE;
717}
718
719
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800720static void handle_eap_initiate(struct hostapd_data *hapd,
721 struct sta_info *sta, struct eap_hdr *eap,
722 size_t len)
723{
724#ifdef CONFIG_ERP
725 u8 type, *data;
726 struct eapol_state_machine *sm = sta->eapol_sm;
727
728 if (sm == NULL)
729 return;
730
731 if (len < sizeof(*eap) + 1) {
732 wpa_printf(MSG_INFO,
733 "handle_eap_initiate: too short response data");
734 return;
735 }
736
737 data = (u8 *) (eap + 1);
738 type = data[0];
739
740 hostapd_logger(hapd, sm->addr, HOSTAPD_MODULE_IEEE8021X,
741 HOSTAPD_LEVEL_DEBUG, "received EAP packet (code=%d "
742 "id=%d len=%d) from STA: EAP Initiate type %u",
743 eap->code, eap->identifier, be_to_host16(eap->length),
744 type);
745
746 wpabuf_free(sm->eap_if->eapRespData);
747 sm->eap_if->eapRespData = wpabuf_alloc_copy(eap, len);
748 sm->eapolEap = TRUE;
749#endif /* CONFIG_ERP */
750}
751
752
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700753/* Process incoming EAP packet from Supplicant */
754static void handle_eap(struct hostapd_data *hapd, struct sta_info *sta,
755 u8 *buf, size_t len)
756{
757 struct eap_hdr *eap;
758 u16 eap_len;
759
760 if (len < sizeof(*eap)) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800761 wpa_printf(MSG_INFO, " too short EAP packet");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700762 return;
763 }
764
765 eap = (struct eap_hdr *) buf;
766
767 eap_len = be_to_host16(eap->length);
768 wpa_printf(MSG_DEBUG, "EAP: code=%d identifier=%d length=%d",
769 eap->code, eap->identifier, eap_len);
770 if (eap_len < sizeof(*eap)) {
771 wpa_printf(MSG_DEBUG, " Invalid EAP length");
772 return;
773 } else if (eap_len > len) {
774 wpa_printf(MSG_DEBUG, " Too short frame to contain this EAP "
775 "packet");
776 return;
777 } else if (eap_len < len) {
778 wpa_printf(MSG_DEBUG, " Ignoring %lu extra bytes after EAP "
779 "packet", (unsigned long) len - eap_len);
780 }
781
782 switch (eap->code) {
783 case EAP_CODE_REQUEST:
784 wpa_printf(MSG_DEBUG, " (request)");
785 return;
786 case EAP_CODE_RESPONSE:
787 wpa_printf(MSG_DEBUG, " (response)");
788 handle_eap_response(hapd, sta, eap, eap_len);
789 break;
790 case EAP_CODE_SUCCESS:
791 wpa_printf(MSG_DEBUG, " (success)");
792 return;
793 case EAP_CODE_FAILURE:
794 wpa_printf(MSG_DEBUG, " (failure)");
795 return;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -0800796 case EAP_CODE_INITIATE:
797 wpa_printf(MSG_DEBUG, " (initiate)");
798 handle_eap_initiate(hapd, sta, eap, eap_len);
799 break;
800 case EAP_CODE_FINISH:
801 wpa_printf(MSG_DEBUG, " (finish)");
802 break;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700803 default:
804 wpa_printf(MSG_DEBUG, " (unknown code)");
805 return;
806 }
807}
808
809
810static struct eapol_state_machine *
811ieee802_1x_alloc_eapol_sm(struct hostapd_data *hapd, struct sta_info *sta)
812{
813 int flags = 0;
814 if (sta->flags & WLAN_STA_PREAUTH)
815 flags |= EAPOL_SM_PREAUTH;
816 if (sta->wpa_sm) {
817 flags |= EAPOL_SM_USES_WPA;
818 if (wpa_auth_sta_get_pmksa(sta->wpa_sm))
819 flags |= EAPOL_SM_FROM_PMKSA_CACHE;
820 }
821 return eapol_auth_alloc(hapd->eapol_auth, sta->addr, flags,
Dmitry Shmidt61d9df32012-08-29 16:22:06 -0700822 sta->wps_ie, sta->p2p_ie, sta,
823 sta->identity, sta->radius_cui);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700824}
825
826
827/**
828 * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
829 * @hapd: hostapd BSS data
830 * @sa: Source address (sender of the EAPOL frame)
831 * @buf: EAPOL frame
832 * @len: Length of buf in octets
833 *
834 * This function is called for each incoming EAPOL frame from the interface
835 */
836void ieee802_1x_receive(struct hostapd_data *hapd, const u8 *sa, const u8 *buf,
837 size_t len)
838{
839 struct sta_info *sta;
840 struct ieee802_1x_hdr *hdr;
841 struct ieee802_1x_eapol_key *key;
842 u16 datalen;
843 struct rsn_pmksa_cache_entry *pmksa;
844 int key_mgmt;
845
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800846 if (!hapd->conf->ieee802_1x && !hapd->conf->wpa && !hapd->conf->osen &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700847 !hapd->conf->wps_state)
848 return;
849
850 wpa_printf(MSG_DEBUG, "IEEE 802.1X: %lu bytes from " MACSTR,
851 (unsigned long) len, MAC2STR(sa));
852 sta = ap_get_sta(hapd, sa);
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800853 if (!sta || (!(sta->flags & (WLAN_STA_ASSOC | WLAN_STA_PREAUTH)) &&
854 !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700855 wpa_printf(MSG_DEBUG, "IEEE 802.1X data frame from not "
856 "associated/Pre-authenticating STA");
857 return;
858 }
859
860 if (len < sizeof(*hdr)) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800861 wpa_printf(MSG_INFO, " too short IEEE 802.1X packet");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700862 return;
863 }
864
865 hdr = (struct ieee802_1x_hdr *) buf;
866 datalen = be_to_host16(hdr->length);
867 wpa_printf(MSG_DEBUG, " IEEE 802.1X: version=%d type=%d length=%d",
868 hdr->version, hdr->type, datalen);
869
870 if (len - sizeof(*hdr) < datalen) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -0800871 wpa_printf(MSG_INFO, " frame too short for this IEEE 802.1X packet");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700872 if (sta->eapol_sm)
873 sta->eapol_sm->dot1xAuthEapLengthErrorFramesRx++;
874 return;
875 }
876 if (len - sizeof(*hdr) > datalen) {
877 wpa_printf(MSG_DEBUG, " ignoring %lu extra octets after "
878 "IEEE 802.1X packet",
879 (unsigned long) len - sizeof(*hdr) - datalen);
880 }
881
882 if (sta->eapol_sm) {
883 sta->eapol_sm->dot1xAuthLastEapolFrameVersion = hdr->version;
884 sta->eapol_sm->dot1xAuthEapolFramesRx++;
885 }
886
887 key = (struct ieee802_1x_eapol_key *) (hdr + 1);
888 if (datalen >= sizeof(struct ieee802_1x_eapol_key) &&
889 hdr->type == IEEE802_1X_TYPE_EAPOL_KEY &&
890 (key->type == EAPOL_KEY_TYPE_WPA ||
891 key->type == EAPOL_KEY_TYPE_RSN)) {
892 wpa_receive(hapd->wpa_auth, sta->wpa_sm, (u8 *) hdr,
893 sizeof(*hdr) + datalen);
894 return;
895 }
896
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800897 if (!hapd->conf->ieee802_1x && !hapd->conf->osen &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700898 !(sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS))) {
899 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
900 "802.1X not enabled and WPS not used");
901 return;
902 }
903
904 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
905 if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
906 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore EAPOL message - "
907 "STA is using PSK");
908 return;
909 }
910
911 if (!sta->eapol_sm) {
912 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
913 if (!sta->eapol_sm)
914 return;
915
916#ifdef CONFIG_WPS
Dmitry Shmidtf21452a2014-02-26 10:55:25 -0800917 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state) {
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -0800918 u32 wflags = sta->flags & (WLAN_STA_WPS |
919 WLAN_STA_WPS2 |
920 WLAN_STA_MAYBE_WPS);
921 if (wflags == WLAN_STA_MAYBE_WPS ||
922 wflags == (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) {
923 /*
924 * Delay EAPOL frame transmission until a
925 * possible WPS STA initiates the handshake
926 * with EAPOL-Start. Only allow the wait to be
927 * skipped if the STA is known to support WPS
928 * 2.0.
929 */
930 wpa_printf(MSG_DEBUG, "WPS: Do not start "
931 "EAPOL until EAPOL-Start is "
932 "received");
933 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
934 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -0700935 }
936#endif /* CONFIG_WPS */
937
938 sta->eapol_sm->eap_if->portEnabled = TRUE;
939 }
940
941 /* since we support version 1, we can ignore version field and proceed
942 * as specified in version 1 standard [IEEE Std 802.1X-2001, 7.5.5] */
943 /* TODO: actually, we are not version 1 anymore.. However, Version 2
944 * does not change frame contents, so should be ok to process frames
945 * more or less identically. Some changes might be needed for
946 * verification of fields. */
947
948 switch (hdr->type) {
949 case IEEE802_1X_TYPE_EAP_PACKET:
950 handle_eap(hapd, sta, (u8 *) (hdr + 1), datalen);
951 break;
952
953 case IEEE802_1X_TYPE_EAPOL_START:
954 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
955 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Start "
956 "from STA");
957 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
958 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
959 if (pmksa) {
960 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
961 HOSTAPD_LEVEL_DEBUG, "cached PMKSA "
962 "available - ignore it since "
963 "STA sent EAPOL-Start");
964 wpa_auth_sta_clear_pmksa(sta->wpa_sm, pmksa);
965 }
966 sta->eapol_sm->eapolStart = TRUE;
967 sta->eapol_sm->dot1xAuthEapolStartFramesRx++;
968 eap_server_clear_identity(sta->eapol_sm->eap);
969 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
970 break;
971
972 case IEEE802_1X_TYPE_EAPOL_LOGOFF:
973 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
974 HOSTAPD_LEVEL_DEBUG, "received EAPOL-Logoff "
975 "from STA");
976 sta->acct_terminate_cause =
977 RADIUS_ACCT_TERMINATE_CAUSE_USER_REQUEST;
978 accounting_sta_stop(hapd, sta);
979 sta->eapol_sm->eapolLogoff = TRUE;
980 sta->eapol_sm->dot1xAuthEapolLogoffFramesRx++;
981 eap_server_clear_identity(sta->eapol_sm->eap);
982 break;
983
984 case IEEE802_1X_TYPE_EAPOL_KEY:
985 wpa_printf(MSG_DEBUG, " EAPOL-Key");
986 if (!ap_sta_is_authorized(sta)) {
987 wpa_printf(MSG_DEBUG, " Dropped key data from "
988 "unauthorized Supplicant");
989 break;
990 }
991 break;
992
993 case IEEE802_1X_TYPE_EAPOL_ENCAPSULATED_ASF_ALERT:
994 wpa_printf(MSG_DEBUG, " EAPOL-Encapsulated-ASF-Alert");
995 /* TODO: implement support for this; show data */
996 break;
997
998 default:
999 wpa_printf(MSG_DEBUG, " unknown IEEE 802.1X packet type");
1000 sta->eapol_sm->dot1xAuthInvalidEapolFramesRx++;
1001 break;
1002 }
1003
1004 eapol_auth_step(sta->eapol_sm);
1005}
1006
1007
1008/**
1009 * ieee802_1x_new_station - Start IEEE 802.1X authentication
1010 * @hapd: hostapd BSS data
1011 * @sta: The station
1012 *
1013 * This function is called to start IEEE 802.1X authentication when a new
1014 * station completes IEEE 802.11 association.
1015 */
1016void ieee802_1x_new_station(struct hostapd_data *hapd, struct sta_info *sta)
1017{
1018 struct rsn_pmksa_cache_entry *pmksa;
1019 int reassoc = 1;
1020 int force_1x = 0;
1021 int key_mgmt;
1022
1023#ifdef CONFIG_WPS
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08001024 if (hapd->conf->wps_state &&
1025 ((hapd->conf->wpa && (sta->flags & WLAN_STA_MAYBE_WPS)) ||
1026 (sta->flags & WLAN_STA_WPS))) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001027 /*
1028 * Need to enable IEEE 802.1X/EAPOL state machines for possible
1029 * WPS handshake even if IEEE 802.1X/EAPOL is not used for
1030 * authentication in this BSS.
1031 */
1032 force_1x = 1;
1033 }
1034#endif /* CONFIG_WPS */
1035
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001036 if (!force_1x && !hapd->conf->ieee802_1x && !hapd->conf->osen) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001037 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - "
1038 "802.1X not enabled or forced for WPS");
Dmitry Shmidt04949592012-07-19 12:16:46 -07001039 /*
1040 * Clear any possible EAPOL authenticator state to support
1041 * reassociation change from WPS to PSK.
1042 */
1043 ieee802_1x_free_station(sta);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001044 return;
1045 }
1046
1047 key_mgmt = wpa_auth_sta_key_mgmt(sta->wpa_sm);
1048 if (key_mgmt != -1 && wpa_key_mgmt_wpa_psk(key_mgmt)) {
1049 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Ignore STA - using PSK");
Dmitry Shmidt04949592012-07-19 12:16:46 -07001050 /*
1051 * Clear any possible EAPOL authenticator state to support
1052 * reassociation change from WPA-EAP to PSK.
1053 */
1054 ieee802_1x_free_station(sta);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001055 return;
1056 }
1057
1058 if (sta->eapol_sm == NULL) {
1059 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1060 HOSTAPD_LEVEL_DEBUG, "start authentication");
1061 sta->eapol_sm = ieee802_1x_alloc_eapol_sm(hapd, sta);
1062 if (sta->eapol_sm == NULL) {
1063 hostapd_logger(hapd, sta->addr,
1064 HOSTAPD_MODULE_IEEE8021X,
1065 HOSTAPD_LEVEL_INFO,
1066 "failed to allocate state machine");
1067 return;
1068 }
1069 reassoc = 0;
1070 }
1071
1072#ifdef CONFIG_WPS
1073 sta->eapol_sm->flags &= ~EAPOL_SM_WAIT_START;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001074 if (!hapd->conf->ieee802_1x && hapd->conf->wps_state &&
1075 !(sta->flags & WLAN_STA_WPS2)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001076 /*
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001077 * Delay EAPOL frame transmission until a possible WPS STA
1078 * initiates the handshake with EAPOL-Start. Only allow the
1079 * wait to be skipped if the STA is known to support WPS 2.0.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001080 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001081 wpa_printf(MSG_DEBUG, "WPS: Do not start EAPOL until "
1082 "EAPOL-Start is received");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001083 sta->eapol_sm->flags |= EAPOL_SM_WAIT_START;
1084 }
1085#endif /* CONFIG_WPS */
1086
1087 sta->eapol_sm->eap_if->portEnabled = TRUE;
1088
1089#ifdef CONFIG_IEEE80211R
1090 if (sta->auth_alg == WLAN_AUTH_FT) {
1091 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1092 HOSTAPD_LEVEL_DEBUG,
1093 "PMK from FT - skip IEEE 802.1X/EAP");
1094 /* Setup EAPOL state machines to already authenticated state
1095 * because of existing FT information from R0KH. */
1096 sta->eapol_sm->keyRun = TRUE;
1097 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1098 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1099 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1100 sta->eapol_sm->authSuccess = TRUE;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001101 sta->eapol_sm->authFail = FALSE;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001102 if (sta->eapol_sm->eap)
1103 eap_sm_notify_cached(sta->eapol_sm->eap);
1104 /* TODO: get vlan_id from R0KH using RRB message */
1105 return;
1106 }
1107#endif /* CONFIG_IEEE80211R */
1108
1109 pmksa = wpa_auth_sta_get_pmksa(sta->wpa_sm);
1110 if (pmksa) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001111 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1112 HOSTAPD_LEVEL_DEBUG,
1113 "PMK from PMKSA cache - skip IEEE 802.1X/EAP");
1114 /* Setup EAPOL state machines to already authenticated state
1115 * because of existing PMKSA information in the cache. */
1116 sta->eapol_sm->keyRun = TRUE;
1117 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1118 sta->eapol_sm->auth_pae_state = AUTH_PAE_AUTHENTICATING;
1119 sta->eapol_sm->be_auth_state = BE_AUTH_SUCCESS;
1120 sta->eapol_sm->authSuccess = TRUE;
Dmitry Shmidtc5ec7f52012-03-06 16:33:24 -08001121 sta->eapol_sm->authFail = FALSE;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001122 if (sta->eapol_sm->eap)
1123 eap_sm_notify_cached(sta->eapol_sm->eap);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001124 pmksa_cache_to_eapol_data(pmksa, sta->eapol_sm);
Dmitry Shmidt83474442015-04-15 13:47:09 -07001125 ap_sta_bind_vlan(hapd, sta);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001126 } else {
1127 if (reassoc) {
1128 /*
1129 * Force EAPOL state machines to start
1130 * re-authentication without having to wait for the
1131 * Supplicant to send EAPOL-Start.
1132 */
1133 sta->eapol_sm->reAuthenticate = TRUE;
1134 }
1135 eapol_auth_step(sta->eapol_sm);
1136 }
1137}
1138
1139
1140void ieee802_1x_free_station(struct sta_info *sta)
1141{
1142 struct eapol_state_machine *sm = sta->eapol_sm;
1143
1144 if (sm == NULL)
1145 return;
1146
1147 sta->eapol_sm = NULL;
1148
1149#ifndef CONFIG_NO_RADIUS
1150 radius_msg_free(sm->last_recv_radius);
1151 radius_free_class(&sm->radius_class);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001152 wpabuf_free(sm->radius_cui);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001153#endif /* CONFIG_NO_RADIUS */
1154
1155 os_free(sm->identity);
1156 eapol_auth_free(sm);
1157}
1158
1159
1160#ifndef CONFIG_NO_RADIUS
1161static void ieee802_1x_decapsulate_radius(struct hostapd_data *hapd,
1162 struct sta_info *sta)
1163{
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001164 struct wpabuf *eap;
1165 const struct eap_hdr *hdr;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001166 int eap_type = -1;
1167 char buf[64];
1168 struct radius_msg *msg;
1169 struct eapol_state_machine *sm = sta->eapol_sm;
1170
1171 if (sm == NULL || sm->last_recv_radius == NULL) {
1172 if (sm)
1173 sm->eap_if->aaaEapNoReq = TRUE;
1174 return;
1175 }
1176
1177 msg = sm->last_recv_radius;
1178
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001179 eap = radius_msg_get_eap(msg);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001180 if (eap == NULL) {
1181 /* RFC 3579, Chap. 2.6.3:
1182 * RADIUS server SHOULD NOT send Access-Reject/no EAP-Message
1183 * attribute */
1184 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1185 HOSTAPD_LEVEL_WARNING, "could not extract "
1186 "EAP-Message from RADIUS message");
1187 sm->eap_if->aaaEapNoReq = TRUE;
1188 return;
1189 }
1190
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001191 if (wpabuf_len(eap) < sizeof(*hdr)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001192 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1193 HOSTAPD_LEVEL_WARNING, "too short EAP packet "
1194 "received from authentication server");
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001195 wpabuf_free(eap);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001196 sm->eap_if->aaaEapNoReq = TRUE;
1197 return;
1198 }
1199
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001200 if (wpabuf_len(eap) > sizeof(*hdr))
1201 eap_type = (wpabuf_head_u8(eap))[sizeof(*hdr)];
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001202
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001203 hdr = wpabuf_head(eap);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001204 switch (hdr->code) {
1205 case EAP_CODE_REQUEST:
1206 if (eap_type >= 0)
1207 sm->eap_type_authsrv = eap_type;
1208 os_snprintf(buf, sizeof(buf), "EAP-Request-%s (%d)",
Dmitry Shmidt2f74e362015-01-21 13:19:05 -08001209 eap_server_get_name(0, eap_type), eap_type);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001210 break;
1211 case EAP_CODE_RESPONSE:
1212 os_snprintf(buf, sizeof(buf), "EAP Response-%s (%d)",
Dmitry Shmidt2f74e362015-01-21 13:19:05 -08001213 eap_server_get_name(0, eap_type), eap_type);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001214 break;
1215 case EAP_CODE_SUCCESS:
1216 os_strlcpy(buf, "EAP Success", sizeof(buf));
1217 break;
1218 case EAP_CODE_FAILURE:
1219 os_strlcpy(buf, "EAP Failure", sizeof(buf));
1220 break;
1221 default:
1222 os_strlcpy(buf, "unknown EAP code", sizeof(buf));
1223 break;
1224 }
1225 buf[sizeof(buf) - 1] = '\0';
1226 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1227 HOSTAPD_LEVEL_DEBUG, "decapsulated EAP packet (code=%d "
1228 "id=%d len=%d) from RADIUS server: %s",
1229 hdr->code, hdr->identifier, be_to_host16(hdr->length),
1230 buf);
1231 sm->eap_if->aaaEapReq = TRUE;
1232
1233 wpabuf_free(sm->eap_if->aaaEapReqData);
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001234 sm->eap_if->aaaEapReqData = eap;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001235}
1236
1237
1238static void ieee802_1x_get_keys(struct hostapd_data *hapd,
1239 struct sta_info *sta, struct radius_msg *msg,
1240 struct radius_msg *req,
1241 const u8 *shared_secret,
1242 size_t shared_secret_len)
1243{
1244 struct radius_ms_mppe_keys *keys;
1245 struct eapol_state_machine *sm = sta->eapol_sm;
1246 if (sm == NULL)
1247 return;
1248
1249 keys = radius_msg_get_ms_keys(msg, req, shared_secret,
1250 shared_secret_len);
1251
1252 if (keys && keys->send && keys->recv) {
1253 size_t len = keys->send_len + keys->recv_len;
1254 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Send-Key",
1255 keys->send, keys->send_len);
1256 wpa_hexdump_key(MSG_DEBUG, "MS-MPPE-Recv-Key",
1257 keys->recv, keys->recv_len);
1258
1259 os_free(sm->eap_if->aaaEapKeyData);
1260 sm->eap_if->aaaEapKeyData = os_malloc(len);
1261 if (sm->eap_if->aaaEapKeyData) {
1262 os_memcpy(sm->eap_if->aaaEapKeyData, keys->recv,
1263 keys->recv_len);
1264 os_memcpy(sm->eap_if->aaaEapKeyData + keys->recv_len,
1265 keys->send, keys->send_len);
1266 sm->eap_if->aaaEapKeyDataLen = len;
1267 sm->eap_if->aaaEapKeyAvailable = TRUE;
1268 }
Dmitry Shmidt807291d2015-01-27 13:40:23 -08001269 } else {
1270 wpa_printf(MSG_DEBUG,
1271 "MS-MPPE: 1x_get_keys, could not get keys: %p send: %p recv: %p",
1272 keys, keys ? keys->send : NULL,
1273 keys ? keys->recv : NULL);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001274 }
1275
1276 if (keys) {
1277 os_free(keys->send);
1278 os_free(keys->recv);
1279 os_free(keys);
1280 }
1281}
1282
1283
1284static void ieee802_1x_store_radius_class(struct hostapd_data *hapd,
1285 struct sta_info *sta,
1286 struct radius_msg *msg)
1287{
Dmitry Shmidt1d755d02015-04-28 10:34:29 -07001288 u8 *attr_class;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001289 size_t class_len;
1290 struct eapol_state_machine *sm = sta->eapol_sm;
1291 int count, i;
1292 struct radius_attr_data *nclass;
1293 size_t nclass_count;
1294
1295 if (!hapd->conf->radius->acct_server || hapd->radius == NULL ||
1296 sm == NULL)
1297 return;
1298
1299 radius_free_class(&sm->radius_class);
1300 count = radius_msg_count_attr(msg, RADIUS_ATTR_CLASS, 1);
1301 if (count <= 0)
1302 return;
1303
Dmitry Shmidt61d9df32012-08-29 16:22:06 -07001304 nclass = os_calloc(count, sizeof(struct radius_attr_data));
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001305 if (nclass == NULL)
1306 return;
1307
1308 nclass_count = 0;
1309
Dmitry Shmidt1d755d02015-04-28 10:34:29 -07001310 attr_class = NULL;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001311 for (i = 0; i < count; i++) {
1312 do {
1313 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CLASS,
Dmitry Shmidt1d755d02015-04-28 10:34:29 -07001314 &attr_class, &class_len,
1315 attr_class) < 0) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001316 i = count;
1317 break;
1318 }
1319 } while (class_len < 1);
1320
1321 nclass[nclass_count].data = os_malloc(class_len);
1322 if (nclass[nclass_count].data == NULL)
1323 break;
1324
Dmitry Shmidt1d755d02015-04-28 10:34:29 -07001325 os_memcpy(nclass[nclass_count].data, attr_class, class_len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001326 nclass[nclass_count].len = class_len;
1327 nclass_count++;
1328 }
1329
1330 sm->radius_class.attr = nclass;
1331 sm->radius_class.count = nclass_count;
1332 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Stored %lu RADIUS Class "
1333 "attributes for " MACSTR,
1334 (unsigned long) sm->radius_class.count,
1335 MAC2STR(sta->addr));
1336}
1337
1338
1339/* Update sta->identity based on User-Name attribute in Access-Accept */
1340static void ieee802_1x_update_sta_identity(struct hostapd_data *hapd,
1341 struct sta_info *sta,
1342 struct radius_msg *msg)
1343{
1344 u8 *buf, *identity;
1345 size_t len;
1346 struct eapol_state_machine *sm = sta->eapol_sm;
1347
1348 if (sm == NULL)
1349 return;
1350
1351 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_USER_NAME, &buf, &len,
1352 NULL) < 0)
1353 return;
1354
Dmitry Shmidt4b060592013-04-29 16:42:49 -07001355 identity = (u8 *) dup_binstr(buf, len);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001356 if (identity == NULL)
1357 return;
1358
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001359 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1360 HOSTAPD_LEVEL_DEBUG, "old identity '%s' updated with "
1361 "User-Name from Access-Accept '%s'",
1362 sm->identity ? (char *) sm->identity : "N/A",
1363 (char *) identity);
1364
1365 os_free(sm->identity);
1366 sm->identity = identity;
1367 sm->identity_len = len;
1368}
1369
1370
Dmitry Shmidt04949592012-07-19 12:16:46 -07001371/* Update CUI based on Chargeable-User-Identity attribute in Access-Accept */
1372static void ieee802_1x_update_sta_cui(struct hostapd_data *hapd,
1373 struct sta_info *sta,
1374 struct radius_msg *msg)
1375{
1376 struct eapol_state_machine *sm = sta->eapol_sm;
1377 struct wpabuf *cui;
1378 u8 *buf;
1379 size_t len;
1380
1381 if (sm == NULL)
1382 return;
1383
1384 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_CHARGEABLE_USER_IDENTITY,
1385 &buf, &len, NULL) < 0)
1386 return;
1387
1388 cui = wpabuf_alloc_copy(buf, len);
1389 if (cui == NULL)
1390 return;
1391
1392 wpabuf_free(sm->radius_cui);
1393 sm->radius_cui = cui;
1394}
1395
1396
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001397#ifdef CONFIG_HS20
1398
1399static void ieee802_1x_hs20_sub_rem(struct sta_info *sta, u8 *pos, size_t len)
1400{
1401 sta->remediation = 1;
1402 os_free(sta->remediation_url);
1403 if (len > 2) {
1404 sta->remediation_url = os_malloc(len);
1405 if (!sta->remediation_url)
1406 return;
1407 sta->remediation_method = pos[0];
1408 os_memcpy(sta->remediation_url, pos + 1, len - 1);
1409 sta->remediation_url[len - 1] = '\0';
1410 wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1411 "for " MACSTR " - server method %u URL %s",
1412 MAC2STR(sta->addr), sta->remediation_method,
1413 sta->remediation_url);
1414 } else {
1415 sta->remediation_url = NULL;
1416 wpa_printf(MSG_DEBUG, "HS 2.0: Subscription remediation needed "
1417 "for " MACSTR, MAC2STR(sta->addr));
1418 }
1419 /* TODO: assign the STA into remediation VLAN or add filtering */
1420}
1421
1422
1423static void ieee802_1x_hs20_deauth_req(struct hostapd_data *hapd,
1424 struct sta_info *sta, u8 *pos,
1425 size_t len)
1426{
1427 if (len < 3)
1428 return; /* Malformed information */
1429 sta->hs20_deauth_requested = 1;
1430 wpa_printf(MSG_DEBUG, "HS 2.0: Deauthentication request - Code %u "
1431 "Re-auth Delay %u",
1432 *pos, WPA_GET_LE16(pos + 1));
1433 wpabuf_free(sta->hs20_deauth_req);
1434 sta->hs20_deauth_req = wpabuf_alloc(len + 1);
1435 if (sta->hs20_deauth_req) {
1436 wpabuf_put_data(sta->hs20_deauth_req, pos, 3);
1437 wpabuf_put_u8(sta->hs20_deauth_req, len - 3);
1438 wpabuf_put_data(sta->hs20_deauth_req, pos + 3, len - 3);
1439 }
1440 ap_sta_session_timeout(hapd, sta, hapd->conf->hs20_deauth_req_timeout);
1441}
1442
1443
1444static void ieee802_1x_hs20_session_info(struct hostapd_data *hapd,
1445 struct sta_info *sta, u8 *pos,
1446 size_t len, int session_timeout)
1447{
1448 unsigned int swt;
1449 int warning_time, beacon_int;
1450
1451 if (len < 1)
1452 return; /* Malformed information */
1453 os_free(sta->hs20_session_info_url);
1454 sta->hs20_session_info_url = os_malloc(len);
1455 if (sta->hs20_session_info_url == NULL)
1456 return;
1457 swt = pos[0];
1458 os_memcpy(sta->hs20_session_info_url, pos + 1, len - 1);
1459 sta->hs20_session_info_url[len - 1] = '\0';
1460 wpa_printf(MSG_DEBUG, "HS 2.0: Session Information URL='%s' SWT=%u "
1461 "(session_timeout=%d)",
1462 sta->hs20_session_info_url, swt, session_timeout);
1463 if (session_timeout < 0) {
1464 wpa_printf(MSG_DEBUG, "HS 2.0: No Session-Timeout set - ignore session info URL");
1465 return;
1466 }
1467 if (swt == 255)
1468 swt = 1; /* Use one minute as the AP selected value */
1469
1470 if ((unsigned int) session_timeout < swt * 60)
1471 warning_time = 0;
1472 else
1473 warning_time = session_timeout - swt * 60;
1474
1475 beacon_int = hapd->iconf->beacon_int;
1476 if (beacon_int < 1)
1477 beacon_int = 100; /* best guess */
1478 sta->hs20_disassoc_timer = swt * 60 * 1000 / beacon_int * 125 / 128;
1479 if (sta->hs20_disassoc_timer > 65535)
1480 sta->hs20_disassoc_timer = 65535;
1481
1482 ap_sta_session_warning_timeout(hapd, sta, warning_time);
1483}
1484
1485#endif /* CONFIG_HS20 */
1486
1487
1488static void ieee802_1x_check_hs20(struct hostapd_data *hapd,
1489 struct sta_info *sta,
1490 struct radius_msg *msg,
1491 int session_timeout)
1492{
1493#ifdef CONFIG_HS20
1494 u8 *buf, *pos, *end, type, sublen;
1495 size_t len;
1496
1497 buf = NULL;
1498 sta->remediation = 0;
1499 sta->hs20_deauth_requested = 0;
1500
1501 for (;;) {
1502 if (radius_msg_get_attr_ptr(msg, RADIUS_ATTR_VENDOR_SPECIFIC,
1503 &buf, &len, buf) < 0)
1504 break;
1505 if (len < 6)
1506 continue;
1507 pos = buf;
1508 end = buf + len;
1509 if (WPA_GET_BE32(pos) != RADIUS_VENDOR_ID_WFA)
1510 continue;
1511 pos += 4;
1512
1513 type = *pos++;
1514 sublen = *pos++;
1515 if (sublen < 2)
1516 continue; /* invalid length */
1517 sublen -= 2; /* skip header */
1518 if (pos + sublen > end)
1519 continue; /* invalid WFA VSA */
1520
1521 switch (type) {
1522 case RADIUS_VENDOR_ATTR_WFA_HS20_SUBSCR_REMEDIATION:
1523 ieee802_1x_hs20_sub_rem(sta, pos, sublen);
1524 break;
1525 case RADIUS_VENDOR_ATTR_WFA_HS20_DEAUTH_REQ:
1526 ieee802_1x_hs20_deauth_req(hapd, sta, pos, sublen);
1527 break;
1528 case RADIUS_VENDOR_ATTR_WFA_HS20_SESSION_INFO_URL:
1529 ieee802_1x_hs20_session_info(hapd, sta, pos, sublen,
1530 session_timeout);
1531 break;
1532 }
1533 }
1534#endif /* CONFIG_HS20 */
1535}
1536
1537
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001538struct sta_id_search {
1539 u8 identifier;
1540 struct eapol_state_machine *sm;
1541};
1542
1543
1544static int ieee802_1x_select_radius_identifier(struct hostapd_data *hapd,
1545 struct sta_info *sta,
1546 void *ctx)
1547{
1548 struct sta_id_search *id_search = ctx;
1549 struct eapol_state_machine *sm = sta->eapol_sm;
1550
1551 if (sm && sm->radius_identifier >= 0 &&
1552 sm->radius_identifier == id_search->identifier) {
1553 id_search->sm = sm;
1554 return 1;
1555 }
1556 return 0;
1557}
1558
1559
1560static struct eapol_state_machine *
1561ieee802_1x_search_radius_identifier(struct hostapd_data *hapd, u8 identifier)
1562{
1563 struct sta_id_search id_search;
1564 id_search.identifier = identifier;
1565 id_search.sm = NULL;
1566 ap_for_each_sta(hapd, ieee802_1x_select_radius_identifier, &id_search);
1567 return id_search.sm;
1568}
1569
1570
1571/**
1572 * ieee802_1x_receive_auth - Process RADIUS frames from Authentication Server
1573 * @msg: RADIUS response message
1574 * @req: RADIUS request message
1575 * @shared_secret: RADIUS shared secret
1576 * @shared_secret_len: Length of shared_secret in octets
1577 * @data: Context data (struct hostapd_data *)
1578 * Returns: Processing status
1579 */
1580static RadiusRxResult
1581ieee802_1x_receive_auth(struct radius_msg *msg, struct radius_msg *req,
1582 const u8 *shared_secret, size_t shared_secret_len,
1583 void *data)
1584{
1585 struct hostapd_data *hapd = data;
1586 struct sta_info *sta;
1587 u32 session_timeout = 0, termination_action, acct_interim_interval;
Dmitry Shmidt83474442015-04-15 13:47:09 -07001588 int session_timeout_set, vlan_id = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001589 struct eapol_state_machine *sm;
1590 int override_eapReq = 0;
1591 struct radius_hdr *hdr = radius_msg_get_hdr(msg);
1592
1593 sm = ieee802_1x_search_radius_identifier(hapd, hdr->identifier);
1594 if (sm == NULL) {
1595 wpa_printf(MSG_DEBUG, "IEEE 802.1X: Could not find matching "
1596 "station for this RADIUS message");
1597 return RADIUS_RX_UNKNOWN;
1598 }
1599 sta = sm->sta;
1600
1601 /* RFC 2869, Ch. 5.13: valid Message-Authenticator attribute MUST be
1602 * present when packet contains an EAP-Message attribute */
1603 if (hdr->code == RADIUS_CODE_ACCESS_REJECT &&
1604 radius_msg_get_attr(msg, RADIUS_ATTR_MESSAGE_AUTHENTICATOR, NULL,
1605 0) < 0 &&
1606 radius_msg_get_attr(msg, RADIUS_ATTR_EAP_MESSAGE, NULL, 0) < 0) {
1607 wpa_printf(MSG_DEBUG, "Allowing RADIUS Access-Reject without "
1608 "Message-Authenticator since it does not include "
1609 "EAP-Message");
1610 } else if (radius_msg_verify(msg, shared_secret, shared_secret_len,
1611 req, 1)) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -08001612 wpa_printf(MSG_INFO, "Incoming RADIUS packet did not have correct Message-Authenticator - dropped");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001613 return RADIUS_RX_INVALID_AUTHENTICATOR;
1614 }
1615
1616 if (hdr->code != RADIUS_CODE_ACCESS_ACCEPT &&
1617 hdr->code != RADIUS_CODE_ACCESS_REJECT &&
1618 hdr->code != RADIUS_CODE_ACCESS_CHALLENGE) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -08001619 wpa_printf(MSG_INFO, "Unknown RADIUS message code");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001620 return RADIUS_RX_UNKNOWN;
1621 }
1622
1623 sm->radius_identifier = -1;
1624 wpa_printf(MSG_DEBUG, "RADIUS packet matching with station " MACSTR,
1625 MAC2STR(sta->addr));
1626
1627 radius_msg_free(sm->last_recv_radius);
1628 sm->last_recv_radius = msg;
1629
1630 session_timeout_set =
1631 !radius_msg_get_attr_int32(msg, RADIUS_ATTR_SESSION_TIMEOUT,
1632 &session_timeout);
1633 if (radius_msg_get_attr_int32(msg, RADIUS_ATTR_TERMINATION_ACTION,
1634 &termination_action))
1635 termination_action = RADIUS_TERMINATION_ACTION_DEFAULT;
1636
1637 if (hapd->conf->acct_interim_interval == 0 &&
1638 hdr->code == RADIUS_CODE_ACCESS_ACCEPT &&
1639 radius_msg_get_attr_int32(msg, RADIUS_ATTR_ACCT_INTERIM_INTERVAL,
1640 &acct_interim_interval) == 0) {
1641 if (acct_interim_interval < 60) {
1642 hostapd_logger(hapd, sta->addr,
1643 HOSTAPD_MODULE_IEEE8021X,
1644 HOSTAPD_LEVEL_INFO,
1645 "ignored too small "
1646 "Acct-Interim-Interval %d",
1647 acct_interim_interval);
1648 } else
1649 sta->acct_interim_interval = acct_interim_interval;
1650 }
1651
1652
1653 switch (hdr->code) {
1654 case RADIUS_CODE_ACCESS_ACCEPT:
Dmitry Shmidt9d9e6022015-04-23 10:34:55 -07001655 if (hapd->conf->ssid.dynamic_vlan == DYNAMIC_VLAN_DISABLED)
Dmitry Shmidt83474442015-04-15 13:47:09 -07001656 vlan_id = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001657#ifndef CONFIG_NO_VLAN
Dmitry Shmidt83474442015-04-15 13:47:09 -07001658 else
1659 vlan_id = radius_msg_get_vlanid(msg);
1660 if (vlan_id > 0 &&
1661 hostapd_vlan_id_valid(hapd->conf->vlan, vlan_id)) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001662 hostapd_logger(hapd, sta->addr,
1663 HOSTAPD_MODULE_RADIUS,
1664 HOSTAPD_LEVEL_INFO,
Dmitry Shmidt83474442015-04-15 13:47:09 -07001665 "VLAN ID %d", vlan_id);
1666 } else if (vlan_id > 0) {
1667 sta->eapol_sm->authFail = TRUE;
1668 hostapd_logger(hapd, sta->addr,
1669 HOSTAPD_MODULE_RADIUS,
1670 HOSTAPD_LEVEL_INFO,
1671 "Invalid VLAN ID %d received from RADIUS server",
1672 vlan_id);
1673 break;
Dmitry Shmidt9d9e6022015-04-23 10:34:55 -07001674 } else if (hapd->conf->ssid.dynamic_vlan ==
1675 DYNAMIC_VLAN_REQUIRED) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001676 sta->eapol_sm->authFail = TRUE;
1677 hostapd_logger(hapd, sta->addr,
1678 HOSTAPD_MODULE_IEEE8021X,
1679 HOSTAPD_LEVEL_INFO, "authentication "
1680 "server did not include required VLAN "
1681 "ID in Access-Accept");
1682 break;
1683 }
1684#endif /* CONFIG_NO_VLAN */
1685
Dmitry Shmidt83474442015-04-15 13:47:09 -07001686 sta->vlan_id = vlan_id;
1687 if ((sta->flags & WLAN_STA_ASSOC) &&
1688 ap_sta_bind_vlan(hapd, sta) < 0)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001689 break;
1690
Dmitry Shmidt9ead16e2014-10-07 13:15:23 -07001691 sta->session_timeout_set = !!session_timeout_set;
1692 sta->session_timeout = session_timeout;
1693
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001694 /* RFC 3580, Ch. 3.17 */
1695 if (session_timeout_set && termination_action ==
1696 RADIUS_TERMINATION_ACTION_RADIUS_REQUEST) {
1697 sm->reAuthPeriod = session_timeout;
1698 } else if (session_timeout_set)
1699 ap_sta_session_timeout(hapd, sta, session_timeout);
1700
1701 sm->eap_if->aaaSuccess = TRUE;
1702 override_eapReq = 1;
1703 ieee802_1x_get_keys(hapd, sta, msg, req, shared_secret,
1704 shared_secret_len);
1705 ieee802_1x_store_radius_class(hapd, sta, msg);
1706 ieee802_1x_update_sta_identity(hapd, sta, msg);
Dmitry Shmidt04949592012-07-19 12:16:46 -07001707 ieee802_1x_update_sta_cui(hapd, sta, msg);
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001708 ieee802_1x_check_hs20(hapd, sta, msg,
1709 session_timeout_set ?
1710 (int) session_timeout : -1);
1711 if (sm->eap_if->eapKeyAvailable && !sta->remediation &&
1712 !sta->hs20_deauth_requested &&
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001713 wpa_auth_pmksa_add(sta->wpa_sm, sm->eapol_key_crypt,
1714 session_timeout_set ?
1715 (int) session_timeout : -1, sm) == 0) {
1716 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
1717 HOSTAPD_LEVEL_DEBUG,
1718 "Added PMKSA cache entry");
1719 }
1720 break;
1721 case RADIUS_CODE_ACCESS_REJECT:
1722 sm->eap_if->aaaFail = TRUE;
1723 override_eapReq = 1;
1724 break;
1725 case RADIUS_CODE_ACCESS_CHALLENGE:
1726 sm->eap_if->aaaEapReq = TRUE;
1727 if (session_timeout_set) {
1728 /* RFC 2869, Ch. 2.3.2; RFC 3580, Ch. 3.17 */
1729 sm->eap_if->aaaMethodTimeout = session_timeout;
1730 hostapd_logger(hapd, sm->addr,
1731 HOSTAPD_MODULE_IEEE8021X,
1732 HOSTAPD_LEVEL_DEBUG,
1733 "using EAP timeout of %d seconds (from "
1734 "RADIUS)",
1735 sm->eap_if->aaaMethodTimeout);
1736 } else {
1737 /*
1738 * Use dynamic retransmission behavior per EAP
1739 * specification.
1740 */
1741 sm->eap_if->aaaMethodTimeout = 0;
1742 }
1743 break;
1744 }
1745
1746 ieee802_1x_decapsulate_radius(hapd, sta);
1747 if (override_eapReq)
1748 sm->eap_if->aaaEapReq = FALSE;
1749
1750 eapol_auth_step(sm);
1751
1752 return RADIUS_RX_QUEUED;
1753}
1754#endif /* CONFIG_NO_RADIUS */
1755
1756
1757void ieee802_1x_abort_auth(struct hostapd_data *hapd, struct sta_info *sta)
1758{
1759 struct eapol_state_machine *sm = sta->eapol_sm;
1760 if (sm == NULL)
1761 return;
1762
1763 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
1764 HOSTAPD_LEVEL_DEBUG, "aborting authentication");
1765
1766#ifndef CONFIG_NO_RADIUS
1767 radius_msg_free(sm->last_recv_radius);
1768 sm->last_recv_radius = NULL;
1769#endif /* CONFIG_NO_RADIUS */
1770
1771 if (sm->eap_if->eapTimeout) {
1772 /*
1773 * Disconnect the STA since it did not reply to the last EAP
1774 * request and we cannot continue EAP processing (EAP-Failure
1775 * could only be sent if the EAP peer actually replied).
1776 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001777 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "EAP Timeout, STA " MACSTR,
1778 MAC2STR(sta->addr));
1779
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001780 sm->eap_if->portEnabled = FALSE;
1781 ap_sta_disconnect(hapd, sta, sta->addr,
1782 WLAN_REASON_PREV_AUTH_NOT_VALID);
1783 }
1784}
1785
1786
1787static int ieee802_1x_rekey_broadcast(struct hostapd_data *hapd)
1788{
1789 struct eapol_authenticator *eapol = hapd->eapol_auth;
1790
1791 if (hapd->conf->default_wep_key_len < 1)
1792 return 0;
1793
1794 os_free(eapol->default_wep_key);
1795 eapol->default_wep_key = os_malloc(hapd->conf->default_wep_key_len);
1796 if (eapol->default_wep_key == NULL ||
1797 random_get_bytes(eapol->default_wep_key,
1798 hapd->conf->default_wep_key_len)) {
Dmitry Shmidtcce06662013-11-04 18:44:24 -08001799 wpa_printf(MSG_INFO, "Could not generate random WEP key");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001800 os_free(eapol->default_wep_key);
1801 eapol->default_wep_key = NULL;
1802 return -1;
1803 }
1804
1805 wpa_hexdump_key(MSG_DEBUG, "IEEE 802.1X: New default WEP key",
1806 eapol->default_wep_key,
1807 hapd->conf->default_wep_key_len);
1808
1809 return 0;
1810}
1811
1812
1813static int ieee802_1x_sta_key_available(struct hostapd_data *hapd,
1814 struct sta_info *sta, void *ctx)
1815{
1816 if (sta->eapol_sm) {
1817 sta->eapol_sm->eap_if->eapKeyAvailable = TRUE;
1818 eapol_auth_step(sta->eapol_sm);
1819 }
1820 return 0;
1821}
1822
1823
1824static void ieee802_1x_rekey(void *eloop_ctx, void *timeout_ctx)
1825{
1826 struct hostapd_data *hapd = eloop_ctx;
1827 struct eapol_authenticator *eapol = hapd->eapol_auth;
1828
1829 if (eapol->default_wep_key_idx >= 3)
1830 eapol->default_wep_key_idx =
1831 hapd->conf->individual_wep_key_len > 0 ? 1 : 0;
1832 else
1833 eapol->default_wep_key_idx++;
1834
1835 wpa_printf(MSG_DEBUG, "IEEE 802.1X: New default WEP key index %d",
1836 eapol->default_wep_key_idx);
1837
1838 if (ieee802_1x_rekey_broadcast(hapd)) {
1839 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1840 HOSTAPD_LEVEL_WARNING, "failed to generate a "
1841 "new broadcast key");
1842 os_free(eapol->default_wep_key);
1843 eapol->default_wep_key = NULL;
1844 return;
1845 }
1846
1847 /* TODO: Could setup key for RX here, but change default TX keyid only
1848 * after new broadcast key has been sent to all stations. */
1849 if (hostapd_drv_set_key(hapd->conf->iface, hapd, WPA_ALG_WEP,
1850 broadcast_ether_addr,
1851 eapol->default_wep_key_idx, 1, NULL, 0,
1852 eapol->default_wep_key,
1853 hapd->conf->default_wep_key_len)) {
1854 hostapd_logger(hapd, NULL, HOSTAPD_MODULE_IEEE8021X,
1855 HOSTAPD_LEVEL_WARNING, "failed to configure a "
1856 "new broadcast key");
1857 os_free(eapol->default_wep_key);
1858 eapol->default_wep_key = NULL;
1859 return;
1860 }
1861
1862 ap_for_each_sta(hapd, ieee802_1x_sta_key_available, NULL);
1863
1864 if (hapd->conf->wep_rekeying_period > 0) {
1865 eloop_register_timeout(hapd->conf->wep_rekeying_period, 0,
1866 ieee802_1x_rekey, hapd, NULL);
1867 }
1868}
1869
1870
1871static void ieee802_1x_eapol_send(void *ctx, void *sta_ctx, u8 type,
1872 const u8 *data, size_t datalen)
1873{
1874#ifdef CONFIG_WPS
1875 struct sta_info *sta = sta_ctx;
1876
1877 if ((sta->flags & (WLAN_STA_WPS | WLAN_STA_MAYBE_WPS)) ==
1878 WLAN_STA_MAYBE_WPS) {
1879 const u8 *identity;
1880 size_t identity_len;
1881 struct eapol_state_machine *sm = sta->eapol_sm;
1882
1883 identity = eap_get_identity(sm->eap, &identity_len);
1884 if (identity &&
1885 ((identity_len == WSC_ID_ENROLLEE_LEN &&
1886 os_memcmp(identity, WSC_ID_ENROLLEE,
1887 WSC_ID_ENROLLEE_LEN) == 0) ||
1888 (identity_len == WSC_ID_REGISTRAR_LEN &&
1889 os_memcmp(identity, WSC_ID_REGISTRAR,
1890 WSC_ID_REGISTRAR_LEN) == 0))) {
1891 wpa_printf(MSG_DEBUG, "WPS: WLAN_STA_MAYBE_WPS -> "
1892 "WLAN_STA_WPS");
1893 sta->flags |= WLAN_STA_WPS;
1894 }
1895 }
1896#endif /* CONFIG_WPS */
1897
1898 ieee802_1x_send(ctx, sta_ctx, type, data, datalen);
1899}
1900
1901
1902static void ieee802_1x_aaa_send(void *ctx, void *sta_ctx,
1903 const u8 *data, size_t datalen)
1904{
1905#ifndef CONFIG_NO_RADIUS
1906 struct hostapd_data *hapd = ctx;
1907 struct sta_info *sta = sta_ctx;
1908
1909 ieee802_1x_encapsulate_radius(hapd, sta, data, datalen);
1910#endif /* CONFIG_NO_RADIUS */
1911}
1912
1913
1914static void _ieee802_1x_finished(void *ctx, void *sta_ctx, int success,
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001915 int preauth, int remediation)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001916{
1917 struct hostapd_data *hapd = ctx;
1918 struct sta_info *sta = sta_ctx;
1919 if (preauth)
1920 rsn_preauth_finished(hapd, sta, success);
1921 else
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001922 ieee802_1x_finished(hapd, sta, success, remediation);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001923}
1924
1925
1926static int ieee802_1x_get_eap_user(void *ctx, const u8 *identity,
1927 size_t identity_len, int phase2,
1928 struct eap_user *user)
1929{
1930 struct hostapd_data *hapd = ctx;
1931 const struct hostapd_eap_user *eap_user;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001932 int i;
Dmitry Shmidt912c6ec2015-03-30 13:16:51 -07001933 int rv = -1;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001934
Dmitry Shmidtd5e49232012-12-03 15:08:10 -08001935 eap_user = hostapd_get_eap_user(hapd, identity, identity_len, phase2);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001936 if (eap_user == NULL)
Dmitry Shmidt912c6ec2015-03-30 13:16:51 -07001937 goto out;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001938
1939 os_memset(user, 0, sizeof(*user));
1940 user->phase2 = phase2;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001941 for (i = 0; i < EAP_MAX_METHODS; i++) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001942 user->methods[i].vendor = eap_user->methods[i].vendor;
1943 user->methods[i].method = eap_user->methods[i].method;
1944 }
1945
1946 if (eap_user->password) {
1947 user->password = os_malloc(eap_user->password_len);
1948 if (user->password == NULL)
Dmitry Shmidt912c6ec2015-03-30 13:16:51 -07001949 goto out;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001950 os_memcpy(user->password, eap_user->password,
1951 eap_user->password_len);
1952 user->password_len = eap_user->password_len;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08001953 user->password_hash = eap_user->password_hash;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001954 }
1955 user->force_version = eap_user->force_version;
Dmitry Shmidtdf5a7e42014-04-02 12:59:59 -07001956 user->macacl = eap_user->macacl;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001957 user->ttls_auth = eap_user->ttls_auth;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08001958 user->remediation = eap_user->remediation;
Dmitry Shmidt912c6ec2015-03-30 13:16:51 -07001959 rv = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001960
Dmitry Shmidt912c6ec2015-03-30 13:16:51 -07001961out:
1962 if (rv)
1963 wpa_printf(MSG_DEBUG, "%s: Failed to find user", __func__);
1964
1965 return rv;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07001966}
1967
1968
1969static int ieee802_1x_sta_entry_alive(void *ctx, const u8 *addr)
1970{
1971 struct hostapd_data *hapd = ctx;
1972 struct sta_info *sta;
1973 sta = ap_get_sta(hapd, addr);
1974 if (sta == NULL || sta->eapol_sm == NULL)
1975 return 0;
1976 return 1;
1977}
1978
1979
1980static void ieee802_1x_logger(void *ctx, const u8 *addr,
1981 eapol_logger_level level, const char *txt)
1982{
1983#ifndef CONFIG_NO_HOSTAPD_LOGGER
1984 struct hostapd_data *hapd = ctx;
1985 int hlevel;
1986
1987 switch (level) {
1988 case EAPOL_LOGGER_WARNING:
1989 hlevel = HOSTAPD_LEVEL_WARNING;
1990 break;
1991 case EAPOL_LOGGER_INFO:
1992 hlevel = HOSTAPD_LEVEL_INFO;
1993 break;
1994 case EAPOL_LOGGER_DEBUG:
1995 default:
1996 hlevel = HOSTAPD_LEVEL_DEBUG;
1997 break;
1998 }
1999
2000 hostapd_logger(hapd, addr, HOSTAPD_MODULE_IEEE8021X, hlevel, "%s",
2001 txt);
2002#endif /* CONFIG_NO_HOSTAPD_LOGGER */
2003}
2004
2005
2006static void ieee802_1x_set_port_authorized(void *ctx, void *sta_ctx,
2007 int authorized)
2008{
2009 struct hostapd_data *hapd = ctx;
2010 struct sta_info *sta = sta_ctx;
2011 ieee802_1x_set_sta_authorized(hapd, sta, authorized);
2012}
2013
2014
2015static void _ieee802_1x_abort_auth(void *ctx, void *sta_ctx)
2016{
2017 struct hostapd_data *hapd = ctx;
2018 struct sta_info *sta = sta_ctx;
2019 ieee802_1x_abort_auth(hapd, sta);
2020}
2021
2022
2023static void _ieee802_1x_tx_key(void *ctx, void *sta_ctx)
2024{
2025 struct hostapd_data *hapd = ctx;
2026 struct sta_info *sta = sta_ctx;
2027 ieee802_1x_tx_key(hapd, sta);
2028}
2029
2030
2031static void ieee802_1x_eapol_event(void *ctx, void *sta_ctx,
2032 enum eapol_event type)
2033{
2034 /* struct hostapd_data *hapd = ctx; */
2035 struct sta_info *sta = sta_ctx;
2036 switch (type) {
2037 case EAPOL_AUTH_SM_CHANGE:
2038 wpa_auth_sm_notify(sta->wpa_sm);
2039 break;
2040 case EAPOL_AUTH_REAUTHENTICATE:
2041 wpa_auth_sm_event(sta->wpa_sm, WPA_REAUTH_EAPOL);
2042 break;
2043 }
2044}
2045
2046
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002047#ifdef CONFIG_ERP
2048
2049static struct eap_server_erp_key *
2050ieee802_1x_erp_get_key(void *ctx, const char *keyname)
2051{
2052 struct hostapd_data *hapd = ctx;
2053 struct eap_server_erp_key *erp;
2054
2055 dl_list_for_each(erp, &hapd->erp_keys, struct eap_server_erp_key,
2056 list) {
2057 if (os_strcmp(erp->keyname_nai, keyname) == 0)
2058 return erp;
2059 }
2060
2061 return NULL;
2062}
2063
2064
2065static int ieee802_1x_erp_add_key(void *ctx, struct eap_server_erp_key *erp)
2066{
2067 struct hostapd_data *hapd = ctx;
2068
2069 dl_list_add(&hapd->erp_keys, &erp->list);
2070 return 0;
2071}
2072
2073#endif /* CONFIG_ERP */
2074
2075
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002076int ieee802_1x_init(struct hostapd_data *hapd)
2077{
2078 int i;
2079 struct eapol_auth_config conf;
2080 struct eapol_auth_cb cb;
2081
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002082 dl_list_init(&hapd->erp_keys);
2083
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002084 os_memset(&conf, 0, sizeof(conf));
2085 conf.ctx = hapd;
2086 conf.eap_reauth_period = hapd->conf->eap_reauth_period;
2087 conf.wpa = hapd->conf->wpa;
2088 conf.individual_wep_key_len = hapd->conf->individual_wep_key_len;
2089 conf.eap_server = hapd->conf->eap_server;
2090 conf.ssl_ctx = hapd->ssl_ctx;
2091 conf.msg_ctx = hapd->msg_ctx;
2092 conf.eap_sim_db_priv = hapd->eap_sim_db_priv;
2093 conf.eap_req_id_text = hapd->conf->eap_req_id_text;
2094 conf.eap_req_id_text_len = hapd->conf->eap_req_id_text_len;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002095 conf.erp_send_reauth_start = hapd->conf->erp_send_reauth_start;
2096 conf.erp_domain = hapd->conf->erp_domain;
2097 conf.erp = hapd->conf->eap_server_erp;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002098 conf.pac_opaque_encr_key = hapd->conf->pac_opaque_encr_key;
2099 conf.eap_fast_a_id = hapd->conf->eap_fast_a_id;
2100 conf.eap_fast_a_id_len = hapd->conf->eap_fast_a_id_len;
2101 conf.eap_fast_a_id_info = hapd->conf->eap_fast_a_id_info;
2102 conf.eap_fast_prov = hapd->conf->eap_fast_prov;
2103 conf.pac_key_lifetime = hapd->conf->pac_key_lifetime;
2104 conf.pac_key_refresh_time = hapd->conf->pac_key_refresh_time;
2105 conf.eap_sim_aka_result_ind = hapd->conf->eap_sim_aka_result_ind;
2106 conf.tnc = hapd->conf->tnc;
2107 conf.wps = hapd->wps;
2108 conf.fragment_size = hapd->conf->fragment_size;
2109 conf.pwd_group = hapd->conf->pwd_group;
Jouni Malinen87fd2792011-05-16 18:35:42 +03002110 conf.pbc_in_m1 = hapd->conf->pbc_in_m1;
Dmitry Shmidt34af3062013-07-11 10:46:32 -07002111 if (hapd->conf->server_id) {
2112 conf.server_id = (const u8 *) hapd->conf->server_id;
2113 conf.server_id_len = os_strlen(hapd->conf->server_id);
2114 } else {
2115 conf.server_id = (const u8 *) "hostapd";
2116 conf.server_id_len = 7;
2117 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002118
2119 os_memset(&cb, 0, sizeof(cb));
2120 cb.eapol_send = ieee802_1x_eapol_send;
2121 cb.aaa_send = ieee802_1x_aaa_send;
2122 cb.finished = _ieee802_1x_finished;
2123 cb.get_eap_user = ieee802_1x_get_eap_user;
2124 cb.sta_entry_alive = ieee802_1x_sta_entry_alive;
2125 cb.logger = ieee802_1x_logger;
2126 cb.set_port_authorized = ieee802_1x_set_port_authorized;
2127 cb.abort_auth = _ieee802_1x_abort_auth;
2128 cb.tx_key = _ieee802_1x_tx_key;
2129 cb.eapol_event = ieee802_1x_eapol_event;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002130#ifdef CONFIG_ERP
2131 cb.erp_get_key = ieee802_1x_erp_get_key;
2132 cb.erp_add_key = ieee802_1x_erp_add_key;
2133#endif /* CONFIG_ERP */
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002134
2135 hapd->eapol_auth = eapol_auth_init(&conf, &cb);
2136 if (hapd->eapol_auth == NULL)
2137 return -1;
2138
2139 if ((hapd->conf->ieee802_1x || hapd->conf->wpa) &&
2140 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 1))
2141 return -1;
2142
2143#ifndef CONFIG_NO_RADIUS
2144 if (radius_client_register(hapd->radius, RADIUS_AUTH,
2145 ieee802_1x_receive_auth, hapd))
2146 return -1;
2147#endif /* CONFIG_NO_RADIUS */
2148
2149 if (hapd->conf->default_wep_key_len) {
2150 for (i = 0; i < 4; i++)
2151 hostapd_drv_set_key(hapd->conf->iface, hapd,
2152 WPA_ALG_NONE, NULL, i, 0, NULL, 0,
2153 NULL, 0);
2154
2155 ieee802_1x_rekey(hapd, NULL);
2156
2157 if (hapd->eapol_auth->default_wep_key == NULL)
2158 return -1;
2159 }
2160
2161 return 0;
2162}
2163
2164
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002165void ieee802_1x_erp_flush(struct hostapd_data *hapd)
2166{
2167 struct eap_server_erp_key *erp;
2168
2169 while ((erp = dl_list_first(&hapd->erp_keys, struct eap_server_erp_key,
2170 list)) != NULL) {
2171 dl_list_del(&erp->list);
2172 bin_clear_free(erp, sizeof(*erp));
2173 }
2174}
2175
2176
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002177void ieee802_1x_deinit(struct hostapd_data *hapd)
2178{
2179 eloop_cancel_timeout(ieee802_1x_rekey, hapd, NULL);
2180
2181 if (hapd->driver != NULL &&
2182 (hapd->conf->ieee802_1x || hapd->conf->wpa))
2183 hostapd_set_drv_ieee8021x(hapd, hapd->conf->iface, 0);
2184
2185 eapol_auth_deinit(hapd->eapol_auth);
2186 hapd->eapol_auth = NULL;
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002187
2188 ieee802_1x_erp_flush(hapd);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002189}
2190
2191
2192int ieee802_1x_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2193 const u8 *buf, size_t len, int ack)
2194{
2195 struct ieee80211_hdr *hdr;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002196 u8 *pos;
2197 const unsigned char rfc1042_hdr[ETH_ALEN] =
2198 { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
2199
2200 if (sta == NULL)
2201 return -1;
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002202 if (len < sizeof(*hdr) + sizeof(rfc1042_hdr) + 2)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002203 return 0;
2204
2205 hdr = (struct ieee80211_hdr *) buf;
2206 pos = (u8 *) (hdr + 1);
2207 if (os_memcmp(pos, rfc1042_hdr, sizeof(rfc1042_hdr)) != 0)
2208 return 0;
2209 pos += sizeof(rfc1042_hdr);
2210 if (WPA_GET_BE16(pos) != ETH_P_PAE)
2211 return 0;
2212 pos += 2;
2213
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002214 return ieee802_1x_eapol_tx_status(hapd, sta, pos, buf + len - pos,
2215 ack);
2216}
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002217
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002218
2219int ieee802_1x_eapol_tx_status(struct hostapd_data *hapd, struct sta_info *sta,
2220 const u8 *buf, int len, int ack)
2221{
2222 const struct ieee802_1x_hdr *xhdr =
2223 (const struct ieee802_1x_hdr *) buf;
2224 const u8 *pos = buf + sizeof(*xhdr);
2225 struct ieee802_1x_eapol_key *key;
2226
2227 if (len < (int) sizeof(*xhdr))
2228 return 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002229 wpa_printf(MSG_DEBUG, "IEEE 802.1X: " MACSTR " TX status - version=%d "
2230 "type=%d length=%d - ack=%d",
2231 MAC2STR(sta->addr), xhdr->version, xhdr->type,
2232 be_to_host16(xhdr->length), ack);
2233
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002234 if (xhdr->type != IEEE802_1X_TYPE_EAPOL_KEY)
2235 return 0;
2236
2237 if (pos + sizeof(struct wpa_eapol_key) <= buf + len) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002238 const struct wpa_eapol_key *wpa;
2239 wpa = (const struct wpa_eapol_key *) pos;
2240 if (wpa->type == EAPOL_KEY_TYPE_RSN ||
2241 wpa->type == EAPOL_KEY_TYPE_WPA)
2242 wpa_auth_eapol_key_tx_status(hapd->wpa_auth,
2243 sta->wpa_sm, ack);
2244 }
2245
2246 /* EAPOL EAP-Packet packets are eventually re-sent by either Supplicant
2247 * or Authenticator state machines, but EAPOL-Key packets are not
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002248 * retransmitted in case of failure. Try to re-send failed EAPOL-Key
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002249 * packets couple of times because otherwise STA keys become
2250 * unsynchronized with AP. */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002251 if (!ack && pos + sizeof(*key) <= buf + len) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002252 key = (struct ieee802_1x_eapol_key *) pos;
2253 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
2254 HOSTAPD_LEVEL_DEBUG, "did not Ack EAPOL-Key "
2255 "frame (%scast index=%d)",
2256 key->key_index & BIT(7) ? "uni" : "broad",
2257 key->key_index & ~BIT(7));
2258 /* TODO: re-send EAPOL-Key couple of times (with short delay
2259 * between them?). If all attempt fail, report error and
2260 * deauthenticate STA so that it will get new keys when
2261 * authenticating again (e.g., after returning in range).
2262 * Separate limit/transmit state needed both for unicast and
2263 * broadcast keys(?) */
2264 }
2265 /* TODO: could move unicast key configuration from ieee802_1x_tx_key()
2266 * to here and change the key only if the EAPOL-Key packet was Acked.
2267 */
2268
2269 return 1;
2270}
2271
2272
2273u8 * ieee802_1x_get_identity(struct eapol_state_machine *sm, size_t *len)
2274{
2275 if (sm == NULL || sm->identity == NULL)
2276 return NULL;
2277
2278 *len = sm->identity_len;
2279 return sm->identity;
2280}
2281
2282
2283u8 * ieee802_1x_get_radius_class(struct eapol_state_machine *sm, size_t *len,
2284 int idx)
2285{
2286 if (sm == NULL || sm->radius_class.attr == NULL ||
2287 idx >= (int) sm->radius_class.count)
2288 return NULL;
2289
2290 *len = sm->radius_class.attr[idx].len;
2291 return sm->radius_class.attr[idx].data;
2292}
2293
2294
Dmitry Shmidt04949592012-07-19 12:16:46 -07002295struct wpabuf * ieee802_1x_get_radius_cui(struct eapol_state_machine *sm)
2296{
2297 if (sm == NULL)
2298 return NULL;
2299 return sm->radius_cui;
2300}
2301
2302
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002303const u8 * ieee802_1x_get_key(struct eapol_state_machine *sm, size_t *len)
2304{
Jouni Malinen75ecf522011-06-27 15:19:46 -07002305 *len = 0;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002306 if (sm == NULL)
2307 return NULL;
2308
2309 *len = sm->eap_if->eapKeyDataLen;
2310 return sm->eap_if->eapKeyData;
2311}
2312
2313
2314void ieee802_1x_notify_port_enabled(struct eapol_state_machine *sm,
2315 int enabled)
2316{
2317 if (sm == NULL)
2318 return;
2319 sm->eap_if->portEnabled = enabled ? TRUE : FALSE;
2320 eapol_auth_step(sm);
2321}
2322
2323
2324void ieee802_1x_notify_port_valid(struct eapol_state_machine *sm,
2325 int valid)
2326{
2327 if (sm == NULL)
2328 return;
2329 sm->portValid = valid ? TRUE : FALSE;
2330 eapol_auth_step(sm);
2331}
2332
2333
2334void ieee802_1x_notify_pre_auth(struct eapol_state_machine *sm, int pre_auth)
2335{
2336 if (sm == NULL)
2337 return;
2338 if (pre_auth)
2339 sm->flags |= EAPOL_SM_PREAUTH;
2340 else
2341 sm->flags &= ~EAPOL_SM_PREAUTH;
2342}
2343
2344
Dmitry Shmidt1d755d02015-04-28 10:34:29 -07002345static const char * bool_txt(Boolean val)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002346{
Dmitry Shmidt1d755d02015-04-28 10:34:29 -07002347 return val ? "TRUE" : "FALSE";
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002348}
2349
2350
2351int ieee802_1x_get_mib(struct hostapd_data *hapd, char *buf, size_t buflen)
2352{
2353 /* TODO */
2354 return 0;
2355}
2356
2357
2358int ieee802_1x_get_mib_sta(struct hostapd_data *hapd, struct sta_info *sta,
2359 char *buf, size_t buflen)
2360{
2361 int len = 0, ret;
2362 struct eapol_state_machine *sm = sta->eapol_sm;
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002363 struct os_reltime diff;
Dmitry Shmidt96be6222014-02-13 10:16:51 -08002364 const char *name1;
2365 const char *name2;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002366
2367 if (sm == NULL)
2368 return 0;
2369
2370 ret = os_snprintf(buf + len, buflen - len,
2371 "dot1xPaePortNumber=%d\n"
2372 "dot1xPaePortProtocolVersion=%d\n"
2373 "dot1xPaePortCapabilities=1\n"
2374 "dot1xPaePortInitialize=%d\n"
2375 "dot1xPaePortReauthenticate=FALSE\n",
2376 sta->aid,
2377 EAPOL_VERSION,
2378 sm->initialize);
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002379 if (os_snprintf_error(buflen - len, ret))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002380 return len;
2381 len += ret;
2382
2383 /* dot1xAuthConfigTable */
2384 ret = os_snprintf(buf + len, buflen - len,
2385 "dot1xAuthPaeState=%d\n"
2386 "dot1xAuthBackendAuthState=%d\n"
2387 "dot1xAuthAdminControlledDirections=%d\n"
2388 "dot1xAuthOperControlledDirections=%d\n"
2389 "dot1xAuthAuthControlledPortStatus=%d\n"
2390 "dot1xAuthAuthControlledPortControl=%d\n"
2391 "dot1xAuthQuietPeriod=%u\n"
2392 "dot1xAuthServerTimeout=%u\n"
2393 "dot1xAuthReAuthPeriod=%u\n"
2394 "dot1xAuthReAuthEnabled=%s\n"
2395 "dot1xAuthKeyTxEnabled=%s\n",
2396 sm->auth_pae_state + 1,
2397 sm->be_auth_state + 1,
2398 sm->adminControlledDirections,
2399 sm->operControlledDirections,
2400 sm->authPortStatus,
2401 sm->portControl,
2402 sm->quietPeriod,
2403 sm->serverTimeout,
2404 sm->reAuthPeriod,
2405 bool_txt(sm->reAuthEnabled),
2406 bool_txt(sm->keyTxEnabled));
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002407 if (os_snprintf_error(buflen - len, ret))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002408 return len;
2409 len += ret;
2410
2411 /* dot1xAuthStatsTable */
2412 ret = os_snprintf(buf + len, buflen - len,
2413 "dot1xAuthEapolFramesRx=%u\n"
2414 "dot1xAuthEapolFramesTx=%u\n"
2415 "dot1xAuthEapolStartFramesRx=%u\n"
2416 "dot1xAuthEapolLogoffFramesRx=%u\n"
2417 "dot1xAuthEapolRespIdFramesRx=%u\n"
2418 "dot1xAuthEapolRespFramesRx=%u\n"
2419 "dot1xAuthEapolReqIdFramesTx=%u\n"
2420 "dot1xAuthEapolReqFramesTx=%u\n"
2421 "dot1xAuthInvalidEapolFramesRx=%u\n"
2422 "dot1xAuthEapLengthErrorFramesRx=%u\n"
2423 "dot1xAuthLastEapolFrameVersion=%u\n"
2424 "dot1xAuthLastEapolFrameSource=" MACSTR "\n",
2425 sm->dot1xAuthEapolFramesRx,
2426 sm->dot1xAuthEapolFramesTx,
2427 sm->dot1xAuthEapolStartFramesRx,
2428 sm->dot1xAuthEapolLogoffFramesRx,
2429 sm->dot1xAuthEapolRespIdFramesRx,
2430 sm->dot1xAuthEapolRespFramesRx,
2431 sm->dot1xAuthEapolReqIdFramesTx,
2432 sm->dot1xAuthEapolReqFramesTx,
2433 sm->dot1xAuthInvalidEapolFramesRx,
2434 sm->dot1xAuthEapLengthErrorFramesRx,
2435 sm->dot1xAuthLastEapolFrameVersion,
2436 MAC2STR(sm->addr));
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002437 if (os_snprintf_error(buflen - len, ret))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002438 return len;
2439 len += ret;
2440
2441 /* dot1xAuthDiagTable */
2442 ret = os_snprintf(buf + len, buflen - len,
2443 "dot1xAuthEntersConnecting=%u\n"
2444 "dot1xAuthEapLogoffsWhileConnecting=%u\n"
2445 "dot1xAuthEntersAuthenticating=%u\n"
2446 "dot1xAuthAuthSuccessesWhileAuthenticating=%u\n"
2447 "dot1xAuthAuthTimeoutsWhileAuthenticating=%u\n"
2448 "dot1xAuthAuthFailWhileAuthenticating=%u\n"
2449 "dot1xAuthAuthEapStartsWhileAuthenticating=%u\n"
2450 "dot1xAuthAuthEapLogoffWhileAuthenticating=%u\n"
2451 "dot1xAuthAuthReauthsWhileAuthenticated=%u\n"
2452 "dot1xAuthAuthEapStartsWhileAuthenticated=%u\n"
2453 "dot1xAuthAuthEapLogoffWhileAuthenticated=%u\n"
2454 "dot1xAuthBackendResponses=%u\n"
2455 "dot1xAuthBackendAccessChallenges=%u\n"
2456 "dot1xAuthBackendOtherRequestsToSupplicant=%u\n"
2457 "dot1xAuthBackendAuthSuccesses=%u\n"
2458 "dot1xAuthBackendAuthFails=%u\n",
2459 sm->authEntersConnecting,
2460 sm->authEapLogoffsWhileConnecting,
2461 sm->authEntersAuthenticating,
2462 sm->authAuthSuccessesWhileAuthenticating,
2463 sm->authAuthTimeoutsWhileAuthenticating,
2464 sm->authAuthFailWhileAuthenticating,
2465 sm->authAuthEapStartsWhileAuthenticating,
2466 sm->authAuthEapLogoffWhileAuthenticating,
2467 sm->authAuthReauthsWhileAuthenticated,
2468 sm->authAuthEapStartsWhileAuthenticated,
2469 sm->authAuthEapLogoffWhileAuthenticated,
2470 sm->backendResponses,
2471 sm->backendAccessChallenges,
2472 sm->backendOtherRequestsToSupplicant,
2473 sm->backendAuthSuccesses,
2474 sm->backendAuthFails);
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002475 if (os_snprintf_error(buflen - len, ret))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002476 return len;
2477 len += ret;
2478
2479 /* dot1xAuthSessionStatsTable */
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002480 os_reltime_age(&sta->acct_session_start, &diff);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002481 ret = os_snprintf(buf + len, buflen - len,
2482 /* TODO: dot1xAuthSessionOctetsRx */
2483 /* TODO: dot1xAuthSessionOctetsTx */
2484 /* TODO: dot1xAuthSessionFramesRx */
2485 /* TODO: dot1xAuthSessionFramesTx */
2486 "dot1xAuthSessionId=%08X-%08X\n"
2487 "dot1xAuthSessionAuthenticMethod=%d\n"
2488 "dot1xAuthSessionTime=%u\n"
2489 "dot1xAuthSessionTerminateCause=999\n"
2490 "dot1xAuthSessionUserName=%s\n",
2491 sta->acct_session_id_hi, sta->acct_session_id_lo,
2492 (wpa_key_mgmt_wpa_ieee8021x(
2493 wpa_auth_sta_key_mgmt(sta->wpa_sm))) ?
2494 1 : 2,
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002495 (unsigned int) diff.sec,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002496 sm->identity);
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002497 if (os_snprintf_error(buflen - len, ret))
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002498 return len;
2499 len += ret;
2500
Dmitry Shmidt2f74e362015-01-21 13:19:05 -08002501 if (sm->acct_multi_session_id_hi) {
2502 ret = os_snprintf(buf + len, buflen - len,
2503 "authMultiSessionId=%08X+%08X\n",
2504 sm->acct_multi_session_id_hi,
2505 sm->acct_multi_session_id_lo);
2506 if (os_snprintf_error(buflen - len, ret))
2507 return len;
2508 len += ret;
2509 }
2510
Dmitry Shmidt96be6222014-02-13 10:16:51 -08002511 name1 = eap_server_get_name(0, sm->eap_type_authsrv);
2512 name2 = eap_server_get_name(0, sm->eap_type_supp);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002513 ret = os_snprintf(buf + len, buflen - len,
2514 "last_eap_type_as=%d (%s)\n"
2515 "last_eap_type_sta=%d (%s)\n",
Dmitry Shmidt2f74e362015-01-21 13:19:05 -08002516 sm->eap_type_authsrv, name1,
2517 sm->eap_type_supp, name2);
Dmitry Shmidt6c0da2b2015-01-05 13:08:17 -08002518 if (os_snprintf_error(buflen - len, ret))
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002519 return len;
2520 len += ret;
2521
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002522 return len;
2523}
2524
2525
2526static void ieee802_1x_finished(struct hostapd_data *hapd,
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08002527 struct sta_info *sta, int success,
2528 int remediation)
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002529{
2530 const u8 *key;
2531 size_t len;
2532 /* TODO: get PMKLifetime from WPA parameters */
2533 static const int dot11RSNAConfigPMKLifetime = 43200;
Dmitry Shmidt9ead16e2014-10-07 13:15:23 -07002534 unsigned int session_timeout;
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002535
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08002536#ifdef CONFIG_HS20
2537 if (remediation && !sta->remediation) {
2538 sta->remediation = 1;
2539 os_free(sta->remediation_url);
2540 sta->remediation_url =
2541 os_strdup(hapd->conf->subscr_remediation_url);
2542 sta->remediation_method = 1; /* SOAP-XML SPP */
2543 }
2544
2545 if (success) {
2546 if (sta->remediation) {
2547 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification "
2548 "to " MACSTR " to indicate Subscription "
2549 "Remediation",
2550 MAC2STR(sta->addr));
2551 hs20_send_wnm_notification(hapd, sta->addr,
2552 sta->remediation_method,
2553 sta->remediation_url);
2554 os_free(sta->remediation_url);
2555 sta->remediation_url = NULL;
2556 }
2557
2558 if (sta->hs20_deauth_req) {
2559 wpa_printf(MSG_DEBUG, "HS 2.0: Send WNM-Notification "
2560 "to " MACSTR " to indicate imminent "
2561 "deauthentication", MAC2STR(sta->addr));
2562 hs20_send_wnm_notification_deauth_req(
2563 hapd, sta->addr, sta->hs20_deauth_req);
2564 }
2565 }
2566#endif /* CONFIG_HS20 */
2567
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002568 key = ieee802_1x_get_key(sta->eapol_sm, &len);
Dmitry Shmidt9ead16e2014-10-07 13:15:23 -07002569 if (sta->session_timeout_set)
2570 session_timeout = sta->session_timeout;
2571 else
2572 session_timeout = dot11RSNAConfigPMKLifetime;
Dmitry Shmidtf21452a2014-02-26 10:55:25 -08002573 if (success && key && len >= PMK_LEN && !sta->remediation &&
2574 !sta->hs20_deauth_requested &&
Dmitry Shmidt9ead16e2014-10-07 13:15:23 -07002575 wpa_auth_pmksa_add(sta->wpa_sm, key, session_timeout,
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002576 sta->eapol_sm) == 0) {
2577 hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_WPA,
2578 HOSTAPD_LEVEL_DEBUG,
2579 "Added PMKSA cache entry (IEEE 802.1X)");
2580 }
2581
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002582 if (!success) {
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002583 /*
2584 * Many devices require deauthentication after WPS provisioning
2585 * and some may not be be able to do that themselves, so
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002586 * disconnect the client here. In addition, this may also
2587 * benefit IEEE 802.1X/EAPOL authentication cases, too since
2588 * the EAPOL PAE state machine would remain in HELD state for
2589 * considerable amount of time and some EAP methods, like
2590 * EAP-FAST with anonymous provisioning, may require another
2591 * EAPOL authentication to be started to complete connection.
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002592 */
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002593 wpa_dbg(hapd->msg_ctx, MSG_DEBUG, "IEEE 802.1X: Force "
2594 "disconnection after EAP-Failure");
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002595 /* Add a small sleep to increase likelihood of previously
2596 * requested EAP-Failure TX getting out before this should the
2597 * driver reorder operations.
2598 */
2599 os_sleep(0, 10000);
2600 ap_sta_disconnect(hapd, sta, sta->addr,
Dmitry Shmidt1f69aa52012-01-24 16:10:04 -08002601 WLAN_REASON_IEEE_802_1X_AUTH_FAILED);
Dmitry Shmidtfb79edc2014-01-10 10:45:54 -08002602 hostapd_wps_eap_completed(hapd);
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002603 }
Dmitry Shmidt8d520ff2011-05-09 14:06:53 -07002604}