1 /*
2 * hostapd / WPA authenticator glue code
3 * Copyright (c) 2002-2012, Jouni Malinen <j@w1.fi>
4 *
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
7 */
8
9 #include "utils/includes.h"
10
11 #include "utils/common.h"
12 #include "common/ieee802_11_defs.h"
13 #include "common/sae.h"
14 #include "common/wpa_ctrl.h"
15 #include "crypto/sha1.h"
16 #include "eapol_auth/eapol_auth_sm.h"
17 #include "eapol_auth/eapol_auth_sm_i.h"
18 #include "eap_server/eap.h"
19 #include "l2_packet/l2_packet.h"
20 #include "hostapd.h"
21 #include "ieee802_1x.h"
22 #include "preauth_auth.h"
23 #include "sta_info.h"
24 #include "tkip_countermeasures.h"
25 #include "ap_drv_ops.h"
26 #include "ap_config.h"
27 #include "wpa_auth.h"
28 #include "wpa_auth_glue.h"
29
30
hostapd_wpa_auth_conf(struct hostapd_bss_config * conf,struct hostapd_config * iconf,struct wpa_auth_config * wconf)31 static void hostapd_wpa_auth_conf(struct hostapd_bss_config *conf,
32 struct hostapd_config *iconf,
33 struct wpa_auth_config *wconf)
34 {
35 os_memset(wconf, 0, sizeof(*wconf));
36 wconf->wpa = conf->wpa;
37 wconf->wpa_key_mgmt = conf->wpa_key_mgmt;
38 wconf->wpa_pairwise = conf->wpa_pairwise;
39 wconf->wpa_group = conf->wpa_group;
40 wconf->wpa_group_rekey = conf->wpa_group_rekey;
41 wconf->wpa_strict_rekey = conf->wpa_strict_rekey;
42 wconf->wpa_gmk_rekey = conf->wpa_gmk_rekey;
43 wconf->wpa_ptk_rekey = conf->wpa_ptk_rekey;
44 wconf->rsn_pairwise = conf->rsn_pairwise;
45 wconf->rsn_preauth = conf->rsn_preauth;
46 wconf->eapol_version = conf->eapol_version;
47 wconf->peerkey = conf->peerkey;
48 wconf->wmm_enabled = conf->wmm_enabled;
49 wconf->wmm_uapsd = conf->wmm_uapsd;
50 wconf->disable_pmksa_caching = conf->disable_pmksa_caching;
51 wconf->okc = conf->okc;
52 #ifdef CONFIG_IEEE80211W
53 wconf->ieee80211w = conf->ieee80211w;
54 wconf->group_mgmt_cipher = conf->group_mgmt_cipher;
55 #endif /* CONFIG_IEEE80211W */
56 #ifdef CONFIG_IEEE80211R
57 wconf->ssid_len = conf->ssid.ssid_len;
58 if (wconf->ssid_len > SSID_MAX_LEN)
59 wconf->ssid_len = SSID_MAX_LEN;
60 os_memcpy(wconf->ssid, conf->ssid.ssid, wconf->ssid_len);
61 os_memcpy(wconf->mobility_domain, conf->mobility_domain,
62 MOBILITY_DOMAIN_ID_LEN);
63 if (conf->nas_identifier &&
64 os_strlen(conf->nas_identifier) <= FT_R0KH_ID_MAX_LEN) {
65 wconf->r0_key_holder_len = os_strlen(conf->nas_identifier);
66 os_memcpy(wconf->r0_key_holder, conf->nas_identifier,
67 wconf->r0_key_holder_len);
68 }
69 os_memcpy(wconf->r1_key_holder, conf->r1_key_holder, FT_R1KH_ID_LEN);
70 wconf->r0_key_lifetime = conf->r0_key_lifetime;
71 wconf->reassociation_deadline = conf->reassociation_deadline;
72 wconf->r0kh_list = conf->r0kh_list;
73 wconf->r1kh_list = conf->r1kh_list;
74 wconf->pmk_r1_push = conf->pmk_r1_push;
75 wconf->ft_over_ds = conf->ft_over_ds;
76 #endif /* CONFIG_IEEE80211R */
77 #ifdef CONFIG_HS20
78 wconf->disable_gtk = conf->disable_dgaf;
79 if (conf->osen) {
80 wconf->disable_gtk = 1;
81 wconf->wpa = WPA_PROTO_OSEN;
82 wconf->wpa_key_mgmt = WPA_KEY_MGMT_OSEN;
83 wconf->wpa_pairwise = 0;
84 wconf->wpa_group = WPA_CIPHER_CCMP;
85 wconf->rsn_pairwise = WPA_CIPHER_CCMP;
86 wconf->rsn_preauth = 0;
87 wconf->disable_pmksa_caching = 1;
88 #ifdef CONFIG_IEEE80211W
89 wconf->ieee80211w = 1;
90 #endif /* CONFIG_IEEE80211W */
91 }
92 #endif /* CONFIG_HS20 */
93 #ifdef CONFIG_TESTING_OPTIONS
94 wconf->corrupt_gtk_rekey_mic_probability =
95 iconf->corrupt_gtk_rekey_mic_probability;
96 if (conf->own_ie_override &&
97 wpabuf_len(conf->own_ie_override) <= MAX_OWN_IE_OVERRIDE) {
98 wconf->own_ie_override_len = wpabuf_len(conf->own_ie_override);
99 os_memcpy(wconf->own_ie_override,
100 wpabuf_head(conf->own_ie_override),
101 wconf->own_ie_override_len);
102 }
103 #endif /* CONFIG_TESTING_OPTIONS */
104 #ifdef CONFIG_P2P
105 os_memcpy(wconf->ip_addr_go, conf->ip_addr_go, 4);
106 os_memcpy(wconf->ip_addr_mask, conf->ip_addr_mask, 4);
107 os_memcpy(wconf->ip_addr_start, conf->ip_addr_start, 4);
108 os_memcpy(wconf->ip_addr_end, conf->ip_addr_end, 4);
109 #endif /* CONFIG_P2P */
110 }
111
112
hostapd_wpa_auth_logger(void * ctx,const u8 * addr,logger_level level,const char * txt)113 static void hostapd_wpa_auth_logger(void *ctx, const u8 *addr,
114 logger_level level, const char *txt)
115 {
116 #ifndef CONFIG_NO_HOSTAPD_LOGGER
117 struct hostapd_data *hapd = ctx;
118 int hlevel;
119
120 switch (level) {
121 case LOGGER_WARNING:
122 hlevel = HOSTAPD_LEVEL_WARNING;
123 break;
124 case LOGGER_INFO:
125 hlevel = HOSTAPD_LEVEL_INFO;
126 break;
127 case LOGGER_DEBUG:
128 default:
129 hlevel = HOSTAPD_LEVEL_DEBUG;
130 break;
131 }
132
133 hostapd_logger(hapd, addr, HOSTAPD_MODULE_WPA, hlevel, "%s", txt);
134 #endif /* CONFIG_NO_HOSTAPD_LOGGER */
135 }
136
137
hostapd_wpa_auth_disconnect(void * ctx,const u8 * addr,u16 reason)138 static void hostapd_wpa_auth_disconnect(void *ctx, const u8 *addr,
139 u16 reason)
140 {
141 struct hostapd_data *hapd = ctx;
142 wpa_printf(MSG_DEBUG, "%s: WPA authenticator requests disconnect: "
143 "STA " MACSTR " reason %d",
144 __func__, MAC2STR(addr), reason);
145 ap_sta_disconnect(hapd, NULL, addr, reason);
146 }
147
148
hostapd_wpa_auth_mic_failure_report(void * ctx,const u8 * addr)149 static int hostapd_wpa_auth_mic_failure_report(void *ctx, const u8 *addr)
150 {
151 struct hostapd_data *hapd = ctx;
152 return michael_mic_failure(hapd, addr, 0);
153 }
154
155
hostapd_wpa_auth_psk_failure_report(void * ctx,const u8 * addr)156 static void hostapd_wpa_auth_psk_failure_report(void *ctx, const u8 *addr)
157 {
158 struct hostapd_data *hapd = ctx;
159 wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POSSIBLE_PSK_MISMATCH MACSTR,
160 MAC2STR(addr));
161 }
162
163
hostapd_wpa_auth_set_eapol(void * ctx,const u8 * addr,wpa_eapol_variable var,int value)164 static void hostapd_wpa_auth_set_eapol(void *ctx, const u8 *addr,
165 wpa_eapol_variable var, int value)
166 {
167 struct hostapd_data *hapd = ctx;
168 struct sta_info *sta = ap_get_sta(hapd, addr);
169 if (sta == NULL)
170 return;
171 switch (var) {
172 case WPA_EAPOL_portEnabled:
173 ieee802_1x_notify_port_enabled(sta->eapol_sm, value);
174 break;
175 case WPA_EAPOL_portValid:
176 ieee802_1x_notify_port_valid(sta->eapol_sm, value);
177 break;
178 case WPA_EAPOL_authorized:
179 ieee802_1x_set_sta_authorized(hapd, sta, value);
180 break;
181 case WPA_EAPOL_portControl_Auto:
182 if (sta->eapol_sm)
183 sta->eapol_sm->portControl = Auto;
184 break;
185 case WPA_EAPOL_keyRun:
186 if (sta->eapol_sm)
187 sta->eapol_sm->keyRun = value ? TRUE : FALSE;
188 break;
189 case WPA_EAPOL_keyAvailable:
190 if (sta->eapol_sm)
191 sta->eapol_sm->eap_if->eapKeyAvailable =
192 value ? TRUE : FALSE;
193 break;
194 case WPA_EAPOL_keyDone:
195 if (sta->eapol_sm)
196 sta->eapol_sm->keyDone = value ? TRUE : FALSE;
197 break;
198 case WPA_EAPOL_inc_EapolFramesTx:
199 if (sta->eapol_sm)
200 sta->eapol_sm->dot1xAuthEapolFramesTx++;
201 break;
202 }
203 }
204
205
hostapd_wpa_auth_get_eapol(void * ctx,const u8 * addr,wpa_eapol_variable var)206 static int hostapd_wpa_auth_get_eapol(void *ctx, const u8 *addr,
207 wpa_eapol_variable var)
208 {
209 struct hostapd_data *hapd = ctx;
210 struct sta_info *sta = ap_get_sta(hapd, addr);
211 if (sta == NULL || sta->eapol_sm == NULL)
212 return -1;
213 switch (var) {
214 case WPA_EAPOL_keyRun:
215 return sta->eapol_sm->keyRun;
216 case WPA_EAPOL_keyAvailable:
217 return sta->eapol_sm->eap_if->eapKeyAvailable;
218 default:
219 return -1;
220 }
221 }
222
223
hostapd_wpa_auth_get_psk(void * ctx,const u8 * addr,const u8 * p2p_dev_addr,const u8 * prev_psk)224 static const u8 * hostapd_wpa_auth_get_psk(void *ctx, const u8 *addr,
225 const u8 *p2p_dev_addr,
226 const u8 *prev_psk)
227 {
228 struct hostapd_data *hapd = ctx;
229 struct sta_info *sta = ap_get_sta(hapd, addr);
230 const u8 *psk;
231
232 #ifdef CONFIG_SAE
233 if (sta && sta->auth_alg == WLAN_AUTH_SAE) {
234 if (!sta->sae || prev_psk)
235 return NULL;
236 return sta->sae->pmk;
237 }
238 #endif /* CONFIG_SAE */
239
240 psk = hostapd_get_psk(hapd->conf, addr, p2p_dev_addr, prev_psk);
241 /*
242 * This is about to iterate over all psks, prev_psk gives the last
243 * returned psk which should not be returned again.
244 * logic list (all hostapd_get_psk; all sta->psk)
245 */
246 if (sta && sta->psk && !psk) {
247 struct hostapd_sta_wpa_psk_short *pos;
248 psk = sta->psk->psk;
249 for (pos = sta->psk; pos; pos = pos->next) {
250 if (pos->is_passphrase) {
251 pbkdf2_sha1(pos->passphrase,
252 hapd->conf->ssid.ssid,
253 hapd->conf->ssid.ssid_len, 4096,
254 pos->psk, PMK_LEN);
255 pos->is_passphrase = 0;
256 }
257 if (pos->psk == prev_psk) {
258 psk = pos->next ? pos->next->psk : NULL;
259 break;
260 }
261 }
262 }
263 return psk;
264 }
265
266
hostapd_wpa_auth_get_msk(void * ctx,const u8 * addr,u8 * msk,size_t * len)267 static int hostapd_wpa_auth_get_msk(void *ctx, const u8 *addr, u8 *msk,
268 size_t *len)
269 {
270 struct hostapd_data *hapd = ctx;
271 const u8 *key;
272 size_t keylen;
273 struct sta_info *sta;
274
275 sta = ap_get_sta(hapd, addr);
276 if (sta == NULL) {
277 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Cannot find STA");
278 return -1;
279 }
280
281 key = ieee802_1x_get_key(sta->eapol_sm, &keylen);
282 if (key == NULL) {
283 wpa_printf(MSG_DEBUG, "AUTH_GET_MSK: Key is null, eapol_sm: %p",
284 sta->eapol_sm);
285 return -1;
286 }
287
288 if (keylen > *len)
289 keylen = *len;
290 os_memcpy(msk, key, keylen);
291 *len = keylen;
292
293 return 0;
294 }
295
296
hostapd_wpa_auth_set_key(void * ctx,int vlan_id,enum wpa_alg alg,const u8 * addr,int idx,u8 * key,size_t key_len)297 static int hostapd_wpa_auth_set_key(void *ctx, int vlan_id, enum wpa_alg alg,
298 const u8 *addr, int idx, u8 *key,
299 size_t key_len)
300 {
301 struct hostapd_data *hapd = ctx;
302 const char *ifname = hapd->conf->iface;
303
304 if (vlan_id > 0) {
305 ifname = hostapd_get_vlan_id_ifname(hapd->conf->vlan, vlan_id);
306 if (ifname == NULL)
307 return -1;
308 }
309
310 return hostapd_drv_set_key(ifname, hapd, alg, addr, idx, 1, NULL, 0,
311 key, key_len);
312 }
313
314
hostapd_wpa_auth_get_seqnum(void * ctx,const u8 * addr,int idx,u8 * seq)315 static int hostapd_wpa_auth_get_seqnum(void *ctx, const u8 *addr, int idx,
316 u8 *seq)
317 {
318 struct hostapd_data *hapd = ctx;
319 return hostapd_get_seqnum(hapd->conf->iface, hapd, addr, idx, seq);
320 }
321
322
hostapd_wpa_auth_send_eapol(void * ctx,const u8 * addr,const u8 * data,size_t data_len,int encrypt)323 static int hostapd_wpa_auth_send_eapol(void *ctx, const u8 *addr,
324 const u8 *data, size_t data_len,
325 int encrypt)
326 {
327 struct hostapd_data *hapd = ctx;
328 struct sta_info *sta;
329 u32 flags = 0;
330
331 #ifdef CONFIG_TESTING_OPTIONS
332 if (hapd->ext_eapol_frame_io) {
333 size_t hex_len = 2 * data_len + 1;
334 char *hex = os_malloc(hex_len);
335
336 if (hex == NULL)
337 return -1;
338 wpa_snprintf_hex(hex, hex_len, data, data_len);
339 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
340 MAC2STR(addr), hex);
341 os_free(hex);
342 return 0;
343 }
344 #endif /* CONFIG_TESTING_OPTIONS */
345
346 sta = ap_get_sta(hapd, addr);
347 if (sta)
348 flags = hostapd_sta_flags_to_drv(sta->flags);
349
350 return hostapd_drv_hapd_send_eapol(hapd, addr, data, data_len,
351 encrypt, flags);
352 }
353
354
hostapd_wpa_auth_for_each_sta(void * ctx,int (* cb)(struct wpa_state_machine * sm,void * ctx),void * cb_ctx)355 static int hostapd_wpa_auth_for_each_sta(
356 void *ctx, int (*cb)(struct wpa_state_machine *sm, void *ctx),
357 void *cb_ctx)
358 {
359 struct hostapd_data *hapd = ctx;
360 struct sta_info *sta;
361
362 for (sta = hapd->sta_list; sta; sta = sta->next) {
363 if (sta->wpa_sm && cb(sta->wpa_sm, cb_ctx))
364 return 1;
365 }
366 return 0;
367 }
368
369
370 struct wpa_auth_iface_iter_data {
371 int (*cb)(struct wpa_authenticator *sm, void *ctx);
372 void *cb_ctx;
373 };
374
wpa_auth_iface_iter(struct hostapd_iface * iface,void * ctx)375 static int wpa_auth_iface_iter(struct hostapd_iface *iface, void *ctx)
376 {
377 struct wpa_auth_iface_iter_data *data = ctx;
378 size_t i;
379 for (i = 0; i < iface->num_bss; i++) {
380 if (iface->bss[i]->wpa_auth &&
381 data->cb(iface->bss[i]->wpa_auth, data->cb_ctx))
382 return 1;
383 }
384 return 0;
385 }
386
387
hostapd_wpa_auth_for_each_auth(void * ctx,int (* cb)(struct wpa_authenticator * sm,void * ctx),void * cb_ctx)388 static int hostapd_wpa_auth_for_each_auth(
389 void *ctx, int (*cb)(struct wpa_authenticator *sm, void *ctx),
390 void *cb_ctx)
391 {
392 struct hostapd_data *hapd = ctx;
393 struct wpa_auth_iface_iter_data data;
394 if (hapd->iface->interfaces == NULL ||
395 hapd->iface->interfaces->for_each_interface == NULL)
396 return -1;
397 data.cb = cb;
398 data.cb_ctx = cb_ctx;
399 return hapd->iface->interfaces->for_each_interface(
400 hapd->iface->interfaces, wpa_auth_iface_iter, &data);
401 }
402
403
404 #ifdef CONFIG_IEEE80211R
405
406 struct wpa_auth_ft_iface_iter_data {
407 struct hostapd_data *src_hapd;
408 const u8 *dst;
409 const u8 *data;
410 size_t data_len;
411 };
412
413
hostapd_wpa_auth_ft_iter(struct hostapd_iface * iface,void * ctx)414 static int hostapd_wpa_auth_ft_iter(struct hostapd_iface *iface, void *ctx)
415 {
416 struct wpa_auth_ft_iface_iter_data *idata = ctx;
417 struct hostapd_data *hapd;
418 size_t j;
419
420 for (j = 0; j < iface->num_bss; j++) {
421 hapd = iface->bss[j];
422 if (hapd == idata->src_hapd)
423 continue;
424 if (!hapd->wpa_auth)
425 continue;
426 if (os_memcmp(hapd->own_addr, idata->dst, ETH_ALEN) == 0) {
427 wpa_printf(MSG_DEBUG, "FT: Send RRB data directly to "
428 "locally managed BSS " MACSTR "@%s -> "
429 MACSTR "@%s",
430 MAC2STR(idata->src_hapd->own_addr),
431 idata->src_hapd->conf->iface,
432 MAC2STR(hapd->own_addr), hapd->conf->iface);
433 wpa_ft_rrb_rx(hapd->wpa_auth,
434 idata->src_hapd->own_addr,
435 idata->data, idata->data_len);
436 return 1;
437 }
438 }
439
440 return 0;
441 }
442
443 #endif /* CONFIG_IEEE80211R */
444
445
hostapd_wpa_auth_send_ether(void * ctx,const u8 * dst,u16 proto,const u8 * data,size_t data_len)446 static int hostapd_wpa_auth_send_ether(void *ctx, const u8 *dst, u16 proto,
447 const u8 *data, size_t data_len)
448 {
449 struct hostapd_data *hapd = ctx;
450 struct l2_ethhdr *buf;
451 int ret;
452
453 #ifdef CONFIG_TESTING_OPTIONS
454 if (hapd->ext_eapol_frame_io && proto == ETH_P_EAPOL) {
455 size_t hex_len = 2 * data_len + 1;
456 char *hex = os_malloc(hex_len);
457
458 if (hex == NULL)
459 return -1;
460 wpa_snprintf_hex(hex, hex_len, data, data_len);
461 wpa_msg(hapd->msg_ctx, MSG_INFO, "EAPOL-TX " MACSTR " %s",
462 MAC2STR(dst), hex);
463 os_free(hex);
464 return 0;
465 }
466 #endif /* CONFIG_TESTING_OPTIONS */
467
468 #ifdef CONFIG_IEEE80211R
469 if (proto == ETH_P_RRB && hapd->iface->interfaces &&
470 hapd->iface->interfaces->for_each_interface) {
471 int res;
472 struct wpa_auth_ft_iface_iter_data idata;
473 idata.src_hapd = hapd;
474 idata.dst = dst;
475 idata.data = data;
476 idata.data_len = data_len;
477 res = hapd->iface->interfaces->for_each_interface(
478 hapd->iface->interfaces, hostapd_wpa_auth_ft_iter,
479 &idata);
480 if (res == 1)
481 return data_len;
482 }
483 #endif /* CONFIG_IEEE80211R */
484
485 if (hapd->driver && hapd->driver->send_ether)
486 return hapd->driver->send_ether(hapd->drv_priv, dst,
487 hapd->own_addr, proto,
488 data, data_len);
489 if (hapd->l2 == NULL)
490 return -1;
491
492 buf = os_malloc(sizeof(*buf) + data_len);
493 if (buf == NULL)
494 return -1;
495 os_memcpy(buf->h_dest, dst, ETH_ALEN);
496 os_memcpy(buf->h_source, hapd->own_addr, ETH_ALEN);
497 buf->h_proto = host_to_be16(proto);
498 os_memcpy(buf + 1, data, data_len);
499 ret = l2_packet_send(hapd->l2, dst, proto, (u8 *) buf,
500 sizeof(*buf) + data_len);
501 os_free(buf);
502 return ret;
503 }
504
505
506 #ifdef CONFIG_IEEE80211R
507
hostapd_wpa_auth_send_ft_action(void * ctx,const u8 * dst,const u8 * data,size_t data_len)508 static int hostapd_wpa_auth_send_ft_action(void *ctx, const u8 *dst,
509 const u8 *data, size_t data_len)
510 {
511 struct hostapd_data *hapd = ctx;
512 int res;
513 struct ieee80211_mgmt *m;
514 size_t mlen;
515 struct sta_info *sta;
516
517 sta = ap_get_sta(hapd, dst);
518 if (sta == NULL || sta->wpa_sm == NULL)
519 return -1;
520
521 m = os_zalloc(sizeof(*m) + data_len);
522 if (m == NULL)
523 return -1;
524 mlen = ((u8 *) &m->u - (u8 *) m) + data_len;
525 m->frame_control = IEEE80211_FC(WLAN_FC_TYPE_MGMT,
526 WLAN_FC_STYPE_ACTION);
527 os_memcpy(m->da, dst, ETH_ALEN);
528 os_memcpy(m->sa, hapd->own_addr, ETH_ALEN);
529 os_memcpy(m->bssid, hapd->own_addr, ETH_ALEN);
530 os_memcpy(&m->u, data, data_len);
531
532 res = hostapd_drv_send_mlme(hapd, (u8 *) m, mlen, 0);
533 os_free(m);
534 return res;
535 }
536
537
538 static struct wpa_state_machine *
hostapd_wpa_auth_add_sta(void * ctx,const u8 * sta_addr)539 hostapd_wpa_auth_add_sta(void *ctx, const u8 *sta_addr)
540 {
541 struct hostapd_data *hapd = ctx;
542 struct sta_info *sta;
543
544 if (hostapd_add_sta_node(hapd, sta_addr, WLAN_AUTH_FT) < 0)
545 return NULL;
546
547 sta = ap_sta_add(hapd, sta_addr);
548 if (sta == NULL)
549 return NULL;
550 if (sta->wpa_sm) {
551 sta->auth_alg = WLAN_AUTH_FT;
552 return sta->wpa_sm;
553 }
554
555 sta->wpa_sm = wpa_auth_sta_init(hapd->wpa_auth, sta->addr, NULL);
556 if (sta->wpa_sm == NULL) {
557 ap_free_sta(hapd, sta);
558 return NULL;
559 }
560 sta->auth_alg = WLAN_AUTH_FT;
561
562 return sta->wpa_sm;
563 }
564
565
hostapd_rrb_receive(void * ctx,const u8 * src_addr,const u8 * buf,size_t len)566 static void hostapd_rrb_receive(void *ctx, const u8 *src_addr, const u8 *buf,
567 size_t len)
568 {
569 struct hostapd_data *hapd = ctx;
570 struct l2_ethhdr *ethhdr;
571 if (len < sizeof(*ethhdr))
572 return;
573 ethhdr = (struct l2_ethhdr *) buf;
574 wpa_printf(MSG_DEBUG, "FT: RRB received packet " MACSTR " -> "
575 MACSTR, MAC2STR(ethhdr->h_source), MAC2STR(ethhdr->h_dest));
576 if (!is_multicast_ether_addr(ethhdr->h_dest) &&
577 os_memcmp(hapd->own_addr, ethhdr->h_dest, ETH_ALEN) != 0)
578 return;
579 wpa_ft_rrb_rx(hapd->wpa_auth, ethhdr->h_source, buf + sizeof(*ethhdr),
580 len - sizeof(*ethhdr));
581 }
582
583
hostapd_wpa_auth_add_tspec(void * ctx,const u8 * sta_addr,u8 * tspec_ie,size_t tspec_ielen)584 static int hostapd_wpa_auth_add_tspec(void *ctx, const u8 *sta_addr,
585 u8 *tspec_ie, size_t tspec_ielen)
586 {
587 struct hostapd_data *hapd = ctx;
588 return hostapd_add_tspec(hapd, sta_addr, tspec_ie, tspec_ielen);
589 }
590
591 #endif /* CONFIG_IEEE80211R */
592
593
hostapd_setup_wpa(struct hostapd_data * hapd)594 int hostapd_setup_wpa(struct hostapd_data *hapd)
595 {
596 struct wpa_auth_config _conf;
597 struct wpa_auth_callbacks cb;
598 const u8 *wpa_ie;
599 size_t wpa_ie_len;
600
601 hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &_conf);
602 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_EAPOL_TX_STATUS)
603 _conf.tx_status = 1;
604 if (hapd->iface->drv_flags & WPA_DRIVER_FLAGS_AP_MLME)
605 _conf.ap_mlme = 1;
606 os_memset(&cb, 0, sizeof(cb));
607 cb.ctx = hapd;
608 cb.logger = hostapd_wpa_auth_logger;
609 cb.disconnect = hostapd_wpa_auth_disconnect;
610 cb.mic_failure_report = hostapd_wpa_auth_mic_failure_report;
611 cb.psk_failure_report = hostapd_wpa_auth_psk_failure_report;
612 cb.set_eapol = hostapd_wpa_auth_set_eapol;
613 cb.get_eapol = hostapd_wpa_auth_get_eapol;
614 cb.get_psk = hostapd_wpa_auth_get_psk;
615 cb.get_msk = hostapd_wpa_auth_get_msk;
616 cb.set_key = hostapd_wpa_auth_set_key;
617 cb.get_seqnum = hostapd_wpa_auth_get_seqnum;
618 cb.send_eapol = hostapd_wpa_auth_send_eapol;
619 cb.for_each_sta = hostapd_wpa_auth_for_each_sta;
620 cb.for_each_auth = hostapd_wpa_auth_for_each_auth;
621 cb.send_ether = hostapd_wpa_auth_send_ether;
622 #ifdef CONFIG_IEEE80211R
623 cb.send_ft_action = hostapd_wpa_auth_send_ft_action;
624 cb.add_sta = hostapd_wpa_auth_add_sta;
625 cb.add_tspec = hostapd_wpa_auth_add_tspec;
626 #endif /* CONFIG_IEEE80211R */
627 hapd->wpa_auth = wpa_init(hapd->own_addr, &_conf, &cb);
628 if (hapd->wpa_auth == NULL) {
629 wpa_printf(MSG_ERROR, "WPA initialization failed.");
630 return -1;
631 }
632
633 if (hostapd_set_privacy(hapd, 1)) {
634 wpa_printf(MSG_ERROR, "Could not set PrivacyInvoked "
635 "for interface %s", hapd->conf->iface);
636 return -1;
637 }
638
639 wpa_ie = wpa_auth_get_wpa_ie(hapd->wpa_auth, &wpa_ie_len);
640 if (hostapd_set_generic_elem(hapd, wpa_ie, wpa_ie_len)) {
641 wpa_printf(MSG_ERROR, "Failed to configure WPA IE for "
642 "the kernel driver.");
643 return -1;
644 }
645
646 if (rsn_preauth_iface_init(hapd)) {
647 wpa_printf(MSG_ERROR, "Initialization of RSN "
648 "pre-authentication failed.");
649 return -1;
650 }
651
652 #ifdef CONFIG_IEEE80211R
653 if (!hostapd_drv_none(hapd) && hapd->conf->ft_over_ds &&
654 wpa_key_mgmt_ft(hapd->conf->wpa_key_mgmt)) {
655 hapd->l2 = l2_packet_init(hapd->conf->bridge[0] ?
656 hapd->conf->bridge :
657 hapd->conf->iface, NULL, ETH_P_RRB,
658 hostapd_rrb_receive, hapd, 1);
659 if (hapd->l2 == NULL &&
660 (hapd->driver == NULL ||
661 hapd->driver->send_ether == NULL)) {
662 wpa_printf(MSG_ERROR, "Failed to open l2_packet "
663 "interface");
664 return -1;
665 }
666 }
667 #endif /* CONFIG_IEEE80211R */
668
669 return 0;
670
671 }
672
673
hostapd_reconfig_wpa(struct hostapd_data * hapd)674 void hostapd_reconfig_wpa(struct hostapd_data *hapd)
675 {
676 struct wpa_auth_config wpa_auth_conf;
677 hostapd_wpa_auth_conf(hapd->conf, hapd->iconf, &wpa_auth_conf);
678 wpa_reconfig(hapd->wpa_auth, &wpa_auth_conf);
679 }
680
681
hostapd_deinit_wpa(struct hostapd_data * hapd)682 void hostapd_deinit_wpa(struct hostapd_data *hapd)
683 {
684 ieee80211_tkip_countermeasures_deinit(hapd);
685 rsn_preauth_iface_deinit(hapd);
686 if (hapd->wpa_auth) {
687 wpa_deinit(hapd->wpa_auth);
688 hapd->wpa_auth = NULL;
689
690 if (hapd->drv_priv && hostapd_set_privacy(hapd, 0)) {
691 wpa_printf(MSG_DEBUG, "Could not disable "
692 "PrivacyInvoked for interface %s",
693 hapd->conf->iface);
694 }
695
696 if (hapd->drv_priv &&
697 hostapd_set_generic_elem(hapd, (u8 *) "", 0)) {
698 wpa_printf(MSG_DEBUG, "Could not remove generic "
699 "information element from interface %s",
700 hapd->conf->iface);
701 }
702 }
703 ieee802_1x_deinit(hapd);
704
705 #ifdef CONFIG_IEEE80211R
706 l2_packet_deinit(hapd->l2);
707 hapd->l2 = NULL;
708 #endif /* CONFIG_IEEE80211R */
709 }
710